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Home My WebLink About20194069.tiffqin J&T Consulting, Inc. September 27, 2019 Ms. Amy Eschberger Environmental Protection Specialist State of Colorado Division of Reclamation, Mining, & Safety 1313 Sherman Street — Room 215 Denver, CO 80203 RE: J-2 Contracting Company. — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 2 Response Dear Ms. Eschberger, RECEIVED SEP 2 7 2019 WELD COUNTY COMMISSIONERS J-2 Contracting Company (J-2) has received the Division's Adequacy Review No. 2 comments letter dated September 13, 2019. Below are the comments and the corresponding responses that have been provided to address the comments. Exhibit C — Pre -mining and Mining Plan Map(s) of Affected Lands (Rule 6.4.3): 1) The revised C-1 — Pre -Mining Plan Map states the Total Permit / Affected Lands Area = 227.52 acres. Additionally, the revised Exhibit D text states the permit boundary will encompass approximately 227.52 acres which will all be affected acreage. However, page 1 of the application form is proposing a permitted acreage of 228.02 acres. Please be sure the proposed permit area/affected area is consistent throughout all application materials, including page 1 of the application form. Response: The permitted acreage is 227.52 acres. Page 1 of the application has been revised and is included as an attachment. Exhibit D — Mining Plan (Rule 6.4.4): 2) The operator's response to item no. 14 states the proposed maximum disturbed area has been calculated for the initial mining phase and areas that will be disturbed. However, the response does not specify the proposed maximum disturbed area. Based on the revised Exhibit L map and bond estimate submitted, it appears the operator is proposing a maximum disturbed area of 92.55 acres. Please confirm the operator is proposing a maximum disturbed area at this time of 92.55 acres. Response: The proposed maximum disturbed area at this time is 92.55 acres. Exhibit J — Vegetation Information (Rule 6.4.10): 3) The operator's response to item no. 44 state a determination has been completed by the (U.S.) Army Corps of Engineers, and a copy has been provided to DRMS. However, the Division was unable to find this determination letter in the materials submitted. Please provide a copy of this determination. Response: The determination is in process with the Army Corps of Engineers. We met V 305 Denver Avenue — Suite D • Fort Lupton CQ 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 Pub ( C Re1!;e�•-� CC:p�.(TPJ,pW(St1f R/CH/cx) 1O /Oairct /27/19 000 t ct- (-t ©Co l RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 2 Response -2- 9/27/19 with them on Wednesday, September 26th and they indicated that all of the areas within the mining phases were non jurisdictional. Nick Franke with the Army Corps of Engineers will be putting together the formal response and should be sending that to us by mid -October. As soon as we have the formal response we will provide it to the DRMS. J-2 Contracting commits to not mining any of the areas that are being reviewed by the Army Corps of Engineers until we have their formal response for the determination. Exhibit L — Reclamation Costs (Rule 6.4.12): 4) The operator's response to item no. 28 states that costs to reclaim the buried dewatering pip to extend from the recharge pond to the river have been included in the revised Exhibit L bond calculation. However, the Division could not find costs for this item in the revised bond estimate provided. Please be sure the bond estimate includes costs to reclaim the dewatering pipe. Response: The costs to reclaim the dewatering pipe are now included in the revised bond estimate. Please see the attached bond estimate. 5) The Division accepts the operator's proposal to submit a combination of dedicated water shares and $150,000 to cover administrative costs for converting the water shares to augmentation use in lieu of submitting 100% of costs for installing the Phase 1 slurry wall. This unique bonding approach only applies to Phase 1 mining. Therefore, prior to opening up Phase 2, the operator must submit a Technical Revision to increase the maximum disturbed area and to re-evaluate the required financial warranty accordingly. If, at that time, the operator can provide a letter from the State Engineer's Office approving the Phase 1 and 2 slurry wall enclosure, then the operator would be required to post 20% of total installation costs for that enclosure, and the dedicated water shares will no longer be necessary. Please be advised, upon application approval, the operator would have one calendar year to submit the affidavit for dedicated water shares along with the required financial warranty to receive permit issuance. Response: No response required. Exhibit S — Permanent Man-made Structures (Rule 6.4.19): 6) The operator's response to item no. 53 states the certified mail receipts (showing structure agreements were attempted for all owners of structures located within 200 feet of the proposed affected land boundary), were sent along with the letters to match the receipts in response to the Division's July 12, 2019 email. The Division has reviewed the materials submitted and has the following comments: a. The operator has provided a copy of the Certified Mail Receipt and the proof of notice to all owners of record of the affected land and the owners of record of all land surface within 200 feet of the affected land boundary for PDC Energy, Inc. However, the Division could not find a copy of the structure agreement mailed to this entity. Please provide a copy of the structure agreement that was mailed to PDC Energy, Inc. b. The operator has provided a copy of the Certified Mail Receipt and the proof of notice to all owners of record of the affected land and the owners of record of all land surface within 200 feet of the affected land boundary for Kerr-McGee Oil & Gas Onshore LP. However, the Division could not find a copy of the structure agreement mailed to this entity. Please provide a copy of the structure agreement that was gal 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 2 Response -3- mailed to Kerr-McGee Oil & Gas Onshore LP. 9/27/19 Response: The entities referenced above do not have structures that are within 200 feet of the affected land boundary. 7) The operator has provided an executed structure agreement only for the structures owned by DPG Farms, LLC. However, there are several other structures located within the proposed affected lands boundary which will be impacted (removed) by the mining operation, for which no agreement has been submitted. The operator is proposing to maintain a minimum 200 foot setback from all such structures until an agreement can be reached with the structure owner. The Division accepts this proposal. Therefore, the operation must keep a minimum 200 foot setback from all structures not owned by DPG Farms, LLC until a notarized agreement between the operator and the structure owner acknowledging their structure will be impacted by the operation has been provided to the Division. Response: Agreements will be provided to DRMS once they are received from the structure owners so that mining within 200 feet of the structure can occur. Additional Item(s): 8) Please remember that, pursuant to Rule 1.6.2(1)(c), any changes or additions to the application on file in our office must also be reflected in the public review copy which was placed with the County Clerk and Recorder. Pursuant to Rule 6.4.18, you must provide our office with an affidavit or receipt indicating the date this was done. Response: Any changes or additions to the application have been delivered to the Weld County Clerk to the Board to be placed with the public review copy. We have provided transmittals date stamped by the Weld County Clerk to the Board being placed at the Weld County Clerk to the Board with the permit application materials mailed on 9/27/19. Thank you for your consideration of our responses to the comments. Please feel free to contact me with any questions or if you need additional information. Sincerely, J.C. York, P. J&T Consulting, Inc. Attachments: 1. Revised Application Pages 2. Exhibit L Reclamation Costs Pi 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 STATE OF COLORADO DNISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 CONSTRUCTION MATERIALS REGULAR (112) OPERATION RECLAMATION PERMIT APPLICATION FORM CHECK ONE: n There is a File Number Already Assigned to this Operation Permit # M - - COLORADO DIVISION OF RECLAMATION MINING —&— SAF ETY -_ (Please reference the file number currently assigned to this operation) New Application (Rule 1.4.5) a__ Amendment Application (Rule 1.10) l� Conversion Application (Rule 1.11) Permit # M - (provide for Amendments and Conversions of existing permits) The application for a Construction Materials Regular 112 Operation Reclamation Permit contains three major parts: (1) the application form; (2) Exhibits A -S, Addendum 1, any sections of Exhibit 6.5 (Geotechnical Stability Exhibit; and (3) the application fee. When you submit your application, be sure to include one (1) complete signed and notarized ORIGINAL and one (1) copy of the completed application form, two (2) copies of Exhibits A -S, Addendum 1, appropriate sections of 6.5 (Geotechnical Stability Exhibit, and a check for the application fee described under Section (4) below. Exhibits should NOT be bound or in a 3 -ring binder; maps should be folded to 8 1/2" X 11" or 8 1/2" X 14" size. To expedite processing, please provide the information in the format and order described in this form. GENERAL OPERATION INFORMATION Type or print clearly, in the space provided, ALL information requested below. 1. Applicant/operator or company name (name to be used on permit): J-2 Contracting Company 1.1 Type of organization (corporation, partnership, etc.): Corporation 2. Operation name (pit, mine or site name): DPG Pit 3. Permitted acreage (new or existing site): 3.1 Change in acreage (+) 3.2 Total acreage in Permit area 4. Fees: 4.1 New Application 4.2 New Quarry Application 4.4 Amendment Fee 4.5 Conversion to 112 operation (set by statute) 5. Primary commoditie(s) to be mined: Sand 5.1 Incidental commoditie(s) to be mined: 1. 3. / Gravel 227.52 227.52 227.52 $2,696.00 $3,342.00 $2,229.00 $2,696.00 lbs/Tons/vr 2. / lbs/Tons/yr 4. / lbs/Tons/yr 5. / 5.2 Anticipated end use of primary commoditie(s) to be mined: 5.3 Anticipated end use of incidental commoditie(s) to be mined: NSA Construction Aggregates permitted acres acres acres application fee quarry application amendment fee conversion fee lbs/Tons/yr lbs/Tons/yr J&T Consulting, Inc. Reclamation Bond Quantities and Costs 2019 jaT Celorulam Inc. Summary of Unit Costs Direct costs Re -applying topsoil 12" thick Revegetating disturbed area Dewatering full pit Phase 1 Slurry Wall Cost (050 R Q $3At - 51-70 11 @ $4/ft - 71-95 11 Q S13At) Phase 2 Slurry Wall Cost (0-50 ft $3/ft - 51-70 11 ft$4Ar - 71-9511 al S13 t) Phase 3 Slurry Wall Cost (05011 f8 $3/11 - 51-70 11 Q $4Ar - 71-9511 Q $13/19 Phase 4 Slurry Wall Cost (0-59 ft Q $3/9 - 51-70 ft t$ $441- 71-9511 O $1341) Phase 5 Slurry Wall Cost (050 11 @ $34t - 51-70 11 (4 $4/9 - 71-95 t $13At) Scarifying Ground Mobilization Overhead and Profit Costs Liability insurance Performance bond Profit Proiect Management Engineering and bidding Management and administration J-2 Contracting Company DPG Pit 9127/2019 18114 DPG Pit Roe Bond Cola $1,800.00 / acre $1,000.00 /acre $400.00 / million gallons $360.00 / linear foot $425.00 / linear foot $360.00 / linear foot $542.00 / linear foot $190.00 / linear foot $200 /acre $2,500 lump sum 1.55% of direct cost 1.05% of direct cost 10.00% of direct cost Total Overhead Cost 12.60% of direct cost 4.25% of direct cost 5.00% of direct cost Total Additional Cost 9.25% of direct cost J&T Consulting, Inc. o zma J.7 ca Reclamation Bond Quantities and Costs O 2019 JuT Coneolttna. Inc. Phase 1 • 24.6 acres (Mining Limits) (Reclamation Operation Slurry Wall for Phase 1 Scarifying - Topsoil/OB Stockpile, Access Road, Plant Site Areas, Loadout Area, Scale, Settling Ponds Topsoil Placement - TopsoiVOB Stockpile, Access Road, Plant Site Areas, Loadout Area, Scale, Settling Ponds Revegetate - TopsoiVOB Stockpile, Access Road, Plant Site Areas, Loadout Area, Scale, Settling Ponds Removal of Soil from Sediment Ponds and Removal of Berms for Sediment Ponds Removal of foundations for Scale House and Scale Removal of Dewatering Overflow Pipe from Recharge Pond to Cache La Poudre River - 380 LF Riprap Spillway Construction for Phase 1 Mobilization Remove Sluny Wall Cost from Bond because DPG Farms, LLC dedication of Patterson Ditch Shares Administration Costs DPG Farms, LLC dedication of Patterson Ditch Shares to Change to Augmentation J-2 Contracting Company DPG Pit 9/27/2019 113114 DPG Pd Roc Bond Coles Quantity Unit Unit Cost 4,259 If 92.55 ac 92.55 ac 92.55 ac 16,000 cy 50 cy 380 If 3,309 cy 1.0 Is $ 360.00 $ 200 $ 1,800 $ 1,000 $ 2.00 $ 200.00 $ 6.00 $ 54.00 $ 2,500 Subtotal Direct Cost 1 Is $ (1,533,240) 1 Is $ 150,000 Total Direct Cost Overhead and Profit Cost (12.60%) Cost I $ 1,533,240 $ 18,510 $ 166,590 $ 92,550 $ 32,000 $ 10,000 $ 2,280 $ 178,668 $ 2,500 $ 2,036,338 $ (1,533,240) $ 150,000 $ 653,098 $ 82,290 Contract Cost $ 735,388 Project Management (9.25%) $ 68,023 Total Required Financial Warranty For Phase 1 S 803,412 J&T Consulting, Inc. Reclamation Bond Quantities and Costs ® 2019 AT Consulting. Inc. J-2 Contracting Company DPG Pit 9127/2019 18114 DPG Pk Sec Bond Cala Phase 2 • 19.94 sores (Mining Limits) Rec amation Opera on Slurry Wall for Phase 2 Scarifying - Disturbed Areas - Phase 2 Mining Limits and to Permit Boundary Topsoil Placement - Disturbed Areas - Phase 2 Mining Limits and to Permit Boundary Revegetate - Disturbed Areas - Phase 2 Mining Limits and to Permit Boundary Riprap Spillway Construction for Phase 2 Dewatering of Pit for Phase 2 Mobil _ Quant ty nit Un Cost Cost 3,021 If $ 425.00 24.08 ac $ 200 24.08 ac $ 1,800 24.08 ac $ 1,000 3,116 cy $ 54.00 322.00 mg $ 400 1.0 Is $ 2,500 1,283,925 4,816 43,344 24,080 168,282 128,800 2,500 1,655,747 Total Direct Cost Overhead and Profit Cost (12.60%) 208,624 Contract Cost 1,864,371 Project Management (9.25%) $ 172,454 Additional Financial Warranty Required For Phases 2 Cummulatve Financial Warranty Required For Phase 1-2 $ 2,036,825 $ 2,840,237 Phase 3 • U.S9aores (Mining Limits) Rec amatlon Operation Slurry Wall for Phase 3 Scarifying - Disturbed Areas - Phase 3 Mining Limits outside stockpile processing area to permit boundary Topsoil Placement - Disturbed Areas - Phase 3 Mining Limits outside stockpile processing area to permit boundary Revegetate - Disturbed Areas - Phase 3 Mining Limits outside stockpile processing area to permit boundary Riprap Spillway Construction for Phase 3 Dewatering of Pit for Phase 3 Mobil Quantity Un nit Cost Cost 5,546 If $ 360.00 $ 1,996,560 48.70 ac $ 200 $ 9,740 48.70 ac $ 1,800 $ 87,660 48.70 ac $ 1,000 $ 48,700 10,857 cy $ 54.00 $ 586,269 960.00 mg $ 400 $ 384,000 1.0 Is $ 2,500 $ 2,500 Total Direct Cost $ 3,115,429 Overhead and Profit Cost (12.60%) $ 392,544 Contract Cost $ 3,507,973 Project Management (9.25%) $ 324,488 Additional Financial Warranty Required For Phase 3 Cummulative Financial Warranty Required For Phase 1-3 $ 3,832,461 $ 6,672,698 J&T Consulting, Inc. Reclamation Bond Quantities and Costs 2019 AT ConsukbuLIne. Phase 4 • 44.1 eons (Mining Limits) 'Reclamation Operation Slurry Wall for Phase 4 Scarifying - Disturbed Areas - Phase 4 Mining Limits outside stockpile processing area to permit boundary Quantit Un t J-2 Contracting Company DPG Pit 9/27/2019 18114 DPG P8 Rec Band Calat nit Cost Cost 5,917 if $ 542.00 $ 3,207,014 40.43 ac $ 200 $ 8,086 Topsoil Placement - Disturbed Areas - Phase 4 Mining Limits outside stockpile processing area to permit boundary 40.43 ac $ 1,800 $ 72,774 Revegetate - Disturbed Areas - Phase 4 Mining Limits outside stockpile processing area to permit boundary 40.43 ac $ 1,000 $ 40,430 Riprap Spillway Construction for Phase 4 21,389 cy $ 54.00 $ 1,155,012 Dewatering of Pit for Phase 4 808.00 mg $ 400 $ 323,200 Mobilization 1.0 Is $ 2,500 $ 2,500 Total Direct Cost $ 4,809,016 Overhead and Profit Cost (12.60%) $ 605,936 Contract Cost $ 5,414,952 Project Management (9.25%) $ 500,883 Additional Financial Warranty Required For Phase 4 Cummulative Financial Warranty Required For Phase 1-4 $ 5,915,835 $ 12,588,533 Phase 5.45.4 acres (Mining Limits) Rec amation Operation Quantit Unit Un Cost Cost Slurry Wall for Phase 5 Scarifying - Disturbed Areas - Phase 5 Mining Limits outside stockpile processing area to permit boundary Topsoil Placement - Disturbed Areas - Phase 5 Mining Limits outside stockpile processing area to permit boundary Revegetate - Disturbed Areas - Phase 5 Mining Limits outside stockpile processing area to permit boundary Riprap Spillway Construction for Phase 5 Dewatering of Pit for Phase 5 Mobil 4,039 If $ 190.00 33.76 ac $ 200 $ 767,410 $ 6,752 33.76 ac $ 1,800 $ 60,768 33.76 ac $ 1,000 $ 33,760 27,739 cy $ 54.00 $ 1,497,909 685.00 mg $ 400 $ 274,000 1.0 Is $ 2,500 $ 2,500 Total Direct Cost $ 2,643,099 Overhead and Profit Cost (12.60%) $ 333,030 Contract Cost $ 2,976,129 Project Management (9.25%) $ 275,292 Additional Financial Warranty Required For Phase 5 Cummulative Financial Warranty Required For Phase 1-5 $ 3,251,421 $15,839,954 RECEIVED J1IT J&T Consulting, Inc. August 26, 2019 Ms. Amy Eschberger Environmental Protection Specialist State of Colorado Division of Reclamation, Mining, & Safety 1313 Sherman Street - Room 215 Denver, CO 80203 RE: J-2 Contracting Company. — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response Dear Ms. Eschberger, AUG 2 8 2019 WELD COUNTY COMMISSIONERS J-2 Contracting Company (J-2) has received the Division's Adequacy Review No. 1 comments letter dated July 10, 2019. Below are the comments and the corresponding responses that have been provided to address the comments. Application Form: 1) Throughout the application form, the Applicant/Operator or Company Name is written as "J-2 Contracting Co." (pages 1, 3, and 8). However, the company name is registered with. the Colorado Secretary of State as "J-2 Contracting Company". The company name given in the application form must be written exactly the same as it is registered with the state. Therefore, please provide revised pages 1, 3, and 8 with the company name written as "J- 2 Contracting Company". Response: The application has been revised to "J-2 Contracting Company". 2) On page 2, under item no. 9, the applicant must provide location information for the center of the area where the majority of mining will occur. The applicant included Section: 11, Township 5 N, Range 65 W, the NE quarter of the SW quarter. However, in reviewing the legal description and maps submitted for the proposed affected lands, it appears the center of the area where the majority of mining will occur would be more accurately described as the NE quarter of the NW quarter of Section 12. Please revise page 2 as necessary to reflect the correct location information. Response: The application has been revised to state that the center of the area is the NE quarter of the NW quarter of Section 12. 3) On page 8, a corporate seal must be provided for a corporation. If a corporate seal is available for J-2 Contracting Company, please provide it on the revised page 8. Response: The application has been revised to include J-2 Contracting Company's corporate seal. V 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 PO Iic, Ra.v;ew Oct/18'/19 cc .% PLC TP) , et -4) (ER 'C H (J(n1C k ) 09/(Q/19 2019-4069 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -2- Exhibit A — Legal Description (Rule 6.4.1): 8/26/19 4) The first paragraph of the legal description states "A tract of land located in the north 1/2 of section 12, and the southwest 1/4 of northeast corner of section 11...". After reviewing the rest of the legal description and the maps submitted for the proposed affected lands, it appears the lands are actually located in the southeast '/4 of the northeast corner of section 11, and not the southwest '/4 of the northeast corner. Therefore, please revise the legal description accordingly. Response: The legal description has been revised and is included in the attached revised Exhibit A. Exhibit C — Pre -mining and Mining Plan Map(s) of Affected Lands (Rule 6.4.3): 5) On Exhibit C-1 — Pre -Mining Plan Map, the proposed permit boundary is difficult to trace, especially the western and southern boundaries. Considering this was the only Exhibit C map submitted that includes the entire proposed permit area, it is particularly important the boundaries are clearly delineated. Please submit a revised Exhibit C-1 map that legibly portrays the total proposed permit boundary. Response: The line type has been revised and a bolder thicker line is shown on the revised Exhibit C-1 map attached to portray the permit boundary. 6) Exhibits C-2 and C-3, Pre -Mining Plan Maps show the type and location of numerous structures contained on the area of affected land and within 200 feet of the affected land. However, the owner's name is not shown for several of these structures,- including for an existing gravel road, borrow ditch, irrigation pond, building, tank, and pond on Exhibit C-2 map; and for existing roads (i.e., Holly Avenue), diversion structures, pump house, fences, water structure, buildings, and pond on Exhibit C-3 map. Please revise Exhibits C-2 and C-3 maps to include the owner's name for all permanent man-made structures located on and within 200 feet of the proposed affected lands. Response: The owner's name has been added and labeled for all of their structures. Please see the revised Exhibit C-2 and C-3 maps. 7) Please indicate on Exhibits C-2 and C-3 Pre -Mining Plan Maps the owner(s) of the pipeline right-of-ways and pipeline easements located within the proposed permit area. Response: The owner's name has been added and labeled for all of the pipeline easements. Please see the revised Exhibit C-2 and C-3 maps. 8) Exhibit C-5 — Mining Plan Map identifies a shop area located outside of the proposed southern permit boundary, adjacent to Holly Avenue, which is not shown on Exhibit C-3 — Pre -Mining Plan Map. Please state whether this shop area will be constructed for the operation. Response: The shop area has been removed as it is not needed for the operation and the operator has no plans to construct a shop. 9) Please show on Exhibits C-4 and C-5 Mining Plan Maps the anticipated location(s) for topsoil and overburden storage during operations. Response: The locations have been revised and labeled on the revised Exhibit C-4 and C-5 maps. 10) Exhibits C-4 and C-5 Mining Plan Maps identify the location of a "Floodway" and a `il 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response 8/26/19 -3- "Floodplain" for the Cache La Poudre and South Platte Rivers. Please specify the type of floodway and floodplain on these maps (e.g., 100 -year, 500 -year) Response: The floodway and floodplain locations have been labeled to specify that they are the 100 -year floodway and floodplain as designated from the Colorado Hazard Mapping Program (CHAMP) study that is being conducted for this area. 11) Please identify the proposed fuel storage location(s) on Exhibits C-4 and C-5 Mining Plan Maps. Response The locations have been revised and labeled on the revised Exhibit C-4 and C-5 maps. 12) The. Phase 4 acreage shown on. Exhibit C-4 - Mining Plan Map (44.1 acres) is different than the Phase 4 acreage shown on Exhibit C-5 -Mining Plan Map (45.4 acres). Please explain and/or correct this discrepancy on the appropriate map. Response: The acreage numbers have been updated and corrected on the revised Exhibit C-4 and C-5 maps. Exhibit D — Mining Plan (Rule 6.4.4) 13) The operator states the proposed permit area is 228.02 acres, with approximately 190.37 acres being mined, and the remaining area consisting of setbacks, road and utility right-of- ways, equipment storage, and plant site access. Please,,, specify the proposed affected area if it differs from the proposed permit area, including all lands to be affected by the operation (e.g., mining, stockpiling, processing, slurry wall installation, stormwater control structures, sediment ponds, equipment storage, scale/scale house, improved or newly constructed access/haul roads). Response: The proposed affected area and the permit area are the same at 227.52 acres: The acreage and boundary were updated so the total acreage is slightly different. 14) Please specify the proposed maximum disturbance (in acres) for which the operator is proposing to post a financial warranty at this time. If this acreage does not include the entire proposed affected lands, please commit to submitting a Technical Revision to increase the maximum disturbed area and revise the bond estimate accordingly prior to creating additional disturbance. Response: The proposed maximum disturbed area has been calculated for the initial mining phase and areas that will be disturbed The financial warranty calculations have been updated to reflect this. J-2 Contracting Company commits to submitting a Technical Revision to increase the maximum disturbed area and revise the bond estimate prior to creating additional disturbance. 15) If the proposed maximum disturbance at this time will occur in more than one of the five proposed mining phases, please specify the type and estimated amount of disturbance to occur in each phase (e.g., 45 acres — mining - Phases 1 and 2; 15 acres processing/stockpiling Phases 3 and 4). This information is needed to calculate the required financial warranty for the proposed operation. Response: See the response to item 14 and also see the revised bond calculations and Exhibit L bonding table and map. 16) Please confirm the proposed maximum mining depth for the operation is 114 feet (12 feet maximum overburden + 102 feet maximum aggregate deposit). V It 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -4- 8/26/19 Response: Yes the maximum mining depth is 114 feet. 17) The operator proposes a designated concrete truck washout area consisting of a 30 foot by 20 foot three -cell concrete structure. The Division was unable to locate this proposed structure on the mining plan maps submitted. Please show the anticipated location for the concrete washout area(s) on the appropriate mining plan map(s). Additionally, please be sure to describe the proposed reclamation plan for this structure in Exhibit E, including whether it will need to be demolished or backfilled under the proposed maximum disturbance and bonding scenario. For example, if the operator is proposing to post a bond that covers disturbances in only particular phases at this time, during which the concrete washout structure will still be in use, then the reclamation plan (Exhibit E) and bond estimate (Exhibit L) must account for reclamation of this structure. Response: The concrete truck washout will be located at the west end of the recycled concrete/asphalt stock pile area shown on the north side of Phase 3. The location has been updated and labeled on the attached Exhibit C-5 map. 18) The operator proposes a 50 foot by 100 foot designated excess concrete product dumping area with an exterior berm: The Division was unable to locate this proposed area on the mining plan maps submitted. Please show the anticipated location for the excess concrete dumping area(s) on the appropriate mining plan map(s). Additionally, please be sure to describe the proposed reclamation plan for this feature in Exhibit E and include any costs for its reclamation in Exhibit L for the proposed maximum disturbance and bonding scenario. Response: The excess concrete product dumping area is at the location of the recycled•, concrete/asphalt stockpile. The location has been updated and labeled on the attached Exhibit C-5 map. The reclamation costs have been included in Exhibit L for the proposed maximum disturbance for the initial mining phase and areas. 19) The operator states that all local State, and Federal rules and regulations will be followed for the storage and handling of any fuel, asphalt, cement, flyash, and admixtures required for the batching facilities. Given the location of the proposed operation within the 100 -year. floodplain of the Cache La Poudre and South Platte Rivers (and 100 feet from the Cache La Poudre River), it is especially important the operation practice proper storage and handling procedures for the above listed materials. Please provide a spill prevention, control, and countermeasure plan for the proposed operation. Response: All local, State, and Federal rules and regulations will be followed for the storage and handling of any fuel, asphalt, cement, flyash, and admixtures required for the batching facilities if the facilities are ever utilized at the mine. The batching facilities will be temporary and portable facilities. It is not known at this time when the temporary portable batching facilities will be in place. Proper storage and handling procedures will be followed if the facilities are put in place, there will be a specific SPCC plan provided to the DRMS prior to the facilities being brought to the site. All SPCC plans will conform to the EPA's rules and regulations. Best management practices will be utilized for secondary containment and spill prevention: 20) The operator states that since reclamation will occur concurrently with mining, it is not anticipated that overburden material will be stockpiled long-term prior to use in production of road base and potentially backfilling of pit areas that are not lined with a slurry wall However, it is the Division's understanding the operator is proposing to construct a slurry wall enclosure around an area/phase prior to mining out the pit. Please clarify what is V I� 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -5- 8/26/19. meant by potentially backfilling pit areas not lined with a slurry wall. Response: There will not be backfilling of pit areas not lined with a slurry wall. The areas to be mined are all planned to be lined with a slurry wall at this time. The language has been removed from the updated text in the mining plan. 21) There is some discrepancy in the mining plan regarding the proposed mining slope. A 3H:1V slope is proposed throughout most of the plan, but then a 2H:1 V slope is proposed in the last paragraph. Please specify the proposed mining slope to be maintained during operations. If the pit slopes will be steeper than the proposed final configuration of 3H:1V, please specify the maximum length of pit slope at any time to be steeper than 3H:1V. This information is needed to calculate the required financial warranty for the proposed disturbance. Additionally, if pit slopes will be steeper than 3H:1V, the slope stability report provided in this application should be revised accordingly. Response: The mining slope proposed is 3H:1V slope. The 2H:1V V slope language has been removed from the updated text in the mining plan. 22) The operator is proposing mining the site in five phases, creating a total of four pits, each. enclosed by a slurry wall. The operator proposes installing inlet and outlet structures on the mined pits/reservoirs for final reclamation. However, the operator has not discussed flood control measures to be implemented during operations. Please provide the anticipated sequencing for installation of the inlet/outlet structures. For example, does the operation intend to install the proposed inlet/outlet structures on the., Phase 1 and 2 pit/reservoir prior to mining the Phase 3 pit/reservoir, and so on? Or does the operation .propose installing all structures after mining is completed at the site? Please describe all measures to be taken during operations to minimize disturbances to the prevailing =hydrologic balance of the affected land and of the surrounding area and to the quantity and quality of water in surface and groundwater systems, including preventing pit capture of the adjacent Cache La Poudre River during high flow events. Response: The operator is proposing to install the inlet/outlet spillways during mining of each phase. The spillways for the Phase 1 and 2 areas will be installed as mining progresses down. Once the mining has progressed down 15 to 20 feet in Phase 1 the riverside spillways will be installed. The riverside spillway for Phase 1 will be installed first, then the riverside spillway for Phase 2 will be installed (once mining occurs in Phase 2), then the pitside spillway in Phase 3 will be installed to convey floodwaters if encountered from Reservoir 1 to Reservoir 2. The pitside spillway from Reservoir 2 to Reservoir 3 will be installed once mining occurs in Phase 4. The pitside spillway from Reservoir 3 to Reservoir 4 will be installed once mining occurs in Phase 5; and the riverside spillway in Reservoir 4 will also be installed once mining occurs in Phase 5. These riverside and pit side spillways are designed per the Urban Drainage and Flood Control District's Technical Review Guidelines for Gravel Mining and Water Storage Activities Within or Adjacent to 100 -Year Floodplains. 23) Please provide an approximate timetable to describe the mining operation, including an estimate of the periods of time which will be required for the various stages or phases of the operation, a description of the size and location of each area to be worked during each phase, and outlining the sequence in which each stage or phase of the operation will be carried out. Please be sure to include the proposed sequence for slurry wall installation as it relates to each mining phase. Response: The operator is proposing to mine Phase 1 first that is 27.15 acres and during this mining there will be 65.4 acres disturbed to provide locations for a scale house and V 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — OPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -6- 8/26/19 site entrance roadway, haul roads, stockpiles, processing areas, settling ponds, a recharge pond, and an overflow pipe from the recharge pond that are outside of Phase 1. Prior to or during the initial mining of Phase 1 a slurry wall will be installed around the perimeter of Phase 1 and extend to Phase 2. The estimated time for mining Phase 1 is approximately 4 years. The operator is proposing to mine Phase 2 second that is 24.08 acres and during this mining there will be the same 65.4 acres disturbed that were in addition to Phase 1's 27.15 acres for a total of 104.61 acres that will be the maximum disturbed area and a Technical Revision will be requested prior to mining into Phase 2. The estimated time for mining Phase 2 is approximately 3 years and 6 months. The :. operator plans to mine Phase 3 next and prior to mining Phase 3 a slurry wall will be installed around the perimeter. Phase 3 is 48.69 acres and there will be 102.07 acres disturbed as the areas for Phase 1 and 2 will be part of a reclaimed reservoir and likely released when Phase 3 mining starts. The stockpile areas will move to the bottom of Phase 3 after the southern portion of Phase 3 is mined. The estimated time for mining Phase 3 is approximately 10 years. The operator plans to mine Phase 4 next and prior to mining Phase 4 a slurry wall will be installed around the perimeter Phase 4 is 40.43 acres and there will be 70.16 acres disturbed as the area for Phase 3 will be part of a reclaimed reservoir and likely released when Phase 4 mining starts. The stockpile areas will be in Phase 4 and move to the bottom of Phase 4 after the southern portion of Phase 4 is mined. The estimated time for mining Phase 4 is approximately 8 years and 5 months. The operator plans to mine Phase 5 next and prior to mining Phase 5 a slurry wall will be installed around the perimeter. Phase 5 is 33.76 acres and there will be :53.64 acres disturbed as the area for Phase 4 will be part of a reclaimed reservoir and likely released when. Phase 5 mining starts. The stockpile areas will be in Phase 5 and mom. e ,to the bottom of Phase 5 after the southern portion of Phase 5 is mined. The estimated time for mining Phase 5 is approximately 7 years and 4 months. Exhibit E — Reclamation Plan (Rule 6.4.5): 24) The operator provided a table showing the estimated reclamation acreages per final land use, including for reservoir water surface, access roads, and reclaimed vegetated land and undisturbed land. Please revise this table to differentiate the acreages for reclaimed vegetated land from undisturbed land. Response: The areas of land will all be disturbed so the areas that were shown or described as undisturbed have been removed from the text. The table will remain the same as all areas that are disturbed that are not reservoir water surface or access roads will be reclaimed vegetated land. 25) Please provide the design specifications and quality assurance and control plan for the slurry wall enclosure to be installed under the proposed maximum disturbance and bond scenario. If this information is not available at this time, please commit to submitting a Technical Revision with this information prior to construction of the slurry wall. Additionally, please commit to submitting a final construction report for the installed slurry wall enclosure, including the results of any post -construction testing and as -built drawings: Response: The slurry wall liner for Phase 1 has not been designed yet; however J-2 Contracting Company commits to submitting a Technical Revision with the design information prior to construction of the slurry wall liner. J-2 Contracting Company commits to submitting a final construction report, results of the post construction leak testing, and as -constructed drawings for the slurry wall liner. V 1 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit -- Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -7- 8/26/19 26) The reclamation plan maps submitted in Exhibit F show four different types of riprap lined spillways (A -D) proposed to be installed on the reservoirs for reclamation. Please provide details on these proposed structures in Exhibit E, including an explanation for the different types, number, and locations proposed. The operator could always revise the proposed inlet/outlet structures at a later date through submittal of a Technical Revision, once the operational criteria for the reservoirs have been identified. However, the Division must hold bond costs for installing the proposed inlet/outlet structures, at a minimum, on the reservoir(s) to be mined within the proposed maximum disturbance scenario. Therefore, sufficient details for these structures must be provided to calculate the required financial warranty. Response: The design information for the spillways has been included in the attached information. The spillways were designed per the Urban Drainage and Flood Control District's Technical Review Guidelines for Gravel Mining and. Water Storage Activities Within or Adjacent to 100 -Year Floodplains. Details of the proposed spillways have been provided with the Exhibit F reclamation plans and updates to the Exhibit L bond calculations have been provided for the spillway construction cost for each phase of mining. 27) Please provide more details on reclamation of any recharge pond areas and sediment control structures, including the approximate volume of backfill material required. Additionally, please be sure any costs for reclaiming these features are included in the Exhibit L bond estimate. Response: The recharge pond area is already an existing feature so the reclamation cost for the .recharge pond will onlr be re -seeding this area. There-seeding cost has been provided in the revised Exhibit L bond calculations. The sediment ponds are abovegrade and will require removal of the berms and sediment within the ponds and costs are included in the revised Exhibit L bond calculations. 28) Please provide details on reclamation of the dewatering pipe shown on the Exhibit C-4 - Mining Plan Map. Additionally, please be sure any costs for reclaimingthis feature are included in the Exhibit L bond estimate. Response: The dewatering pipe is going to be lay flat hose so it will not be buried. The overflow pipe from the recharge pond to the river will be buried and costs to reclaim the pipe have been included in the revised Exhibit L bond calculations. 29) Please provide details on reclamation of the proposed aggregate processing plant and concrete and asphalt batch plant. Will any structures (e.g., concrete foundations, buildings) require demolition for reclamation? Please be sure any costs for reclaiming these features are included in the Exhibit L bond estimate. Response: The aggregate processing plant, asphalt batch plant, and concrete batch plant are all portable so there are not any concrete foundations proposed for these facilities. There will not be any reclamation needed for the structures other than re- seeding these areas if the mining stops. If mining continues the areas where the plants would be located eventually get mined out. 30) Please provide details on reclamation of the proposed truck scale and scale house. Will any structures (e.g., concrete foundations, buildings) require demolition for reclamation? Please be sure any costs for reclaiming these features are included in the Exhibit L bond estimate. Response: The scale and scale house foundations will require demolition for the V 305 Denver Avenue — Suite D Fort Lupton CO 80621, • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -8- reclamation. The revised Exhibit L bond calculations include these costs. 8/26/19 31) The proposed temporary stockpile seed mix includes Crested wheatgrass. While this grass species can be helpful for quick stabilization, it is not compatible with native grasses. If used for topsoil stabilization, this species would become part of the topsoil seedbase and potentially interfere with the growth of desired native grasses when the topsoil is used for reclamation. Please remove this species from the temporary stockpile seed mix, or replace it with a species that is more compatible with native grass species. Response: The temporary stockpile seed mix has been revised to remove crested wheatgrass. 32) Please provide the expected time of year for reclamation seeding. Response: The reclamation seeding will be completed per CDOT's requirements that state seeding can occur anytime after spring thaw until June 1st and from September 15th until there is a consistent ground freeze. Exhibit F — Reclamation Plan Map (Rule 6.4.6): 33) Exhibits F-1 and F-2 Reclamation Plan Maps do not show any roads to remain around the reservoirs for reclamation. Does the operator propose leaving any roads within the affected lands for reclamation'? If not, how will the proposed reservoirs be accessed for maintenance? Please be sure to show on the reclamation plan maps any roads to remain ., for reclamation. Response; - The reclamation plan maps have been updated -to show the access roads that will remain around the perimeter ofthe reservoirs. 34) Exhibits F-1 and F-2 Reclamation Plan Maps identify the location of a "Floodway" and a "Floodplain" for the Cache La Poudre and South Platte Rivers. Please specify the type of floodway and floodplain on these maps (e.g., 100 -year, 500 -year). Response: The The floodway and floodplain locations have been labeled to specify that they are the 100 year floodway and floodplain as designated from the CHAMP study that is being conducted for this area. Exhibit G — Water Information (Rule 6.4.7): 35) Please provide a stormwater management plan for the proposed operation. Response: J-2 Contracting Company commits to providing a stormwater management plan for the proposed operation when they apply for the stormwater/dewatering permit from CDPHE. This permit will be required but J-2 Contracting Company will not apply for this permit until they are certain they will receive approval from Weld County for a Use by Special Review permit. J-2 Contracting Company commits to utilizing best management practices for all sediment traps, sediment ponds, erosion control measures, etc. to ensure that sediment transport is minimized and contained within the area of the operation and stormwater management plan. A stormwater management plan will be provided to the DRMS once J-2 Contracting Company finalizes it specific to this operation. 36) The proposed lined reservoirs are located within the 100 -year flood plain of the nearby rivers. Therefore, please provide a flood analysis and control plan addressing how the operation will safely convey the expected 100 -year flood event throughout the life of mine, V I� 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -9- 8/26/19 including during reclamation. The flood analysis should quantify the velocity and volume of flows expected on site from a 100 -year flood event, as well as the elevation of the 100 - year base flood event and its relation to the elevation of any proposed spillways and reservoir embankments. Response: A floodplain analysis was provided with the materials submitted for the application showing the existing conditions and the proposed mining and final reclamation scenarios with the HEC-RAS models provided to us from the CHAMP Study being performed for this area. The design information for the spillways has been included in the attached information. The spillways were designed per the Urban Drainage and Flood Control District's Technical Review Guidelines for Gravel Mining and Water Storage Activities Within or Adjacent to 100 -Year Floodplains. 37) Please identify all known aquifers in the vicinity of the proposed operation. Response: The alluvial aquifer in the vicinity of the proposed operation is the South Platte River and the Cache La Poudre River. 38) Please provide a site map showing potentiometric elevations for groundwater in the proposed affected lands and surrounding areas in relation to the existing monitoring wells and proposed reservoirs. Please be sure to indicate approximate flow direction(s) on the map. Response: The groundwater modeling analysis and report from . McGrane Engineering. shows the existing and -proposed conditions for the operation. The existing conditions prior to slurry walls being installed and proposed conditions after._slurry walls are installed.: This document wassent to the DRMS per your attention on July 11, 201.0. 39) The operator states the operation will impact the South Platte River and the Cache La Poudre River in the form of depletions due to evaporation and operational losses associated with mining. Please describe how the operation is expected to impact the local groundwater regime during operations and during reclamation, including estimated drawdown, and anticipated areas of mounding and shadowing from slurry wall installation. This information may be best portrayed on a site map in this Exhibit. Additionally, please. indicate any water resources (e.g., tributary water courses, wells, springs, stock water ponds, reservoirs, ditches) located on or in the vicinity of the proposed affected lands that may be impacted by the proposed operation, and describe what type of impacts would be expected at that resource. Response: The groundwater modeling analysis and report from McGrane Engineering shows the existing and proposed conditions for the operation. The existing conditions prior to slurry walls being installed and proposed conditions after slurry walls are installed. This document was sent to the DRMS per your attention on July 11, 2019. 40) Please provide more details on the groundwater monitoring plan, including the sampling frequency, the frequency of reporting the results to the Division, and the specific criteria that would require implementation of the groundwater mitigation plan. Response: The existing monitor wells will be measured once a month to establish a baseline for the seasonal groundwater elevations underlying the property. The measurements are typically submitted with the annual report and renewal to the DRMS. The triggers for implementing a drain to balance the effects of groundwater shadowing or mounding would be plus or minus 2 feet from what the seasonal groundwater elevations/measurements have been from the baseline data prior to installation of the slurry wall(s). V Il 305 Denver Avenue - Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company - DPG Pit - Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -10- 8/26/19 41) The operator provided water level monitoring data from two sampling events (April 19, 2019 and May 8, 2019) for nine existing monitoring wells installed within and adjacent to the proposed affected land boundary. Please commit to providing water level data collected from these wells during five successive calendar quarters prior to commencing with dewatering operations and/or slurry wall installation at the site. Response: The existing monitor wells will be measured once a month to establish a baseline for the seasonal groundwater elevations underlying the property. The measurements are typically submitted with the annual report and renewal to the DRMS. The current plan for the operation is to obtain a Weld County Use by Special Review permit by April/May of 2020 and begin the slurry wall installation around the perimeter of Phase 1. J-2 Contracting Company commits to providing data from the monitor wells for one year prior to the slurry wall construction starting at Phase 1. The slurry wall construction will take approximately 4 months to complete. Readings/measurements of the monitor wells will continue on a monthly basis for the duration of the mining operation. 42) The operator states the maximum exposed groundwater at the site during mining is estimated at 0.38 acres. However, elsewhere in this exhibit, the operator describes a dewatering ditch with a maximum surface area of 0.26 acres and a series of settling ponds totaling 8.5 acres, which would give a total surface area of 8.76 acres. Please specify the maximum amount of exposed groundwater to occur on site at any time. Response: The maximum amount of groundwater that will be exposed based .on the area of the dewatering ditches (0.26 acres), fresh water pond (0.42 acres), process, water ditch_. (0.34 acres), settling ponds (1.24 acres) and recharge pond (6.51 acres) is 8.77 acres. Exhibit H — Wildlife Information (Rule 6.4.8): 43) The Screening Report for Federal and State Listed Threatened and Endangered Species prepared by Ecological Resource Consultants, Inc. includes the following recommendations regarding migratory birds and raptor nest sites in the survey area: a. Any future land use changes that occur in the survey area that remove vegetation during the active nesting season for most migratory birds in this region of Colorado (April 1 — August 31) should first ensure that active nests are not disturbed. b. In accordance with CPW guidelines, no new disturbance should occur within 1/3 mile of the active red-tailed hawk nest between February 15 and June 15, or until the young have fledged. Once the nest becomes inactive, surface occupancy may resume within the 1/3 -mile buffer and vegetation occupied by the inactive nest may be removed. c. According to the USFWS Region 6 Migratory Bird Conservation Actions for Projects to Reduce the Risk of Take during the Nesting Season, an active nest survey should be performed "no more than 7-10 days prior to when work actually begins on the project site" to determine the presence and activity status of nests protected by the MBTA. If work for the project must begin prior to the nest becoming inactive within the 1/3 -mile buffer, further agency coordination would be required. V I� 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -11- 8/26/19 Please incorporate these recommendations into the proposed mining plan, including commitments to performing the recommended surveys within the specified timeframes, to maintaining the recommended buffer zones during the specified timeframes, and to coordinating with CPW and/or USFWS as necessary. Response: J-2 Contracting Company commits to incorporating the recommendations from ERC's Screening Report for Federal and State Listed Threatened and Endangered Species into the mining plan and commits to performing the recommended surveys within the specified timeframes, maintaining the recommended buffer zones during the specified timeframes, and coordinating with CPW and USFWS as necessary. Exhibit J — Vegetation Information (Rule 6.4.10): 44) The Aquatic Resource Delineation Report prepared by Ecological Resource Consultants, Inc. (ERC) identifies several aquatic resources within and nearby the proposed affected land boundary, some of which are likely non -jurisdictional, and others which are likely considered jurisdictional and subject to Section 404 Clean Water Act. The application states a request for an Approved Jurisdictional Determination is pending from the U.S. Army Corps of Engineers Denver Regulatory Office in order to verify jurisdictional status of all aquatic resources on site. Please commit to not commencing with dewatering activities at the site until this determination has been received and a copy provided to the Division. Please be advised, if any of the identified aquatic resources are determined to be jurisdictional, the submittal of a permit revision may be required to comply with the requirements of Section 404 Clean Water Act, including demonstration of compliance with Rule 3.1.6(1) with regard to potential dewatering impacts to the jurisdictional aquatic resources. Response: J-2 Contracting Company commits to not commencing with dewatering activities until ERC's report has been accepted, a determination has been completed by the Army Corps of Engineers, and a copy has been provided to the DRMS. Exhibit L — Reclamation Costs (Rule 6.4.12): 45) The operator proposes a phased and cumulative bonding approach, and has provided estimated costs for each of the five mining phases. However, it is not clear in the application what specific phases or maximum disturbance the operator wishes to be bonded for at this time. On the Exhibits C-4 and C-5 Mining Plan Maps, it appears the operation would have disturbances in multiple phases at the same time, including slurry wall installation and mining in Phases 1 and 2, access, truck scale, and scale house in Phase 3, stockpiling and processing in Phases 3 and 4, and settling ponds in Phase 5. Therefore, the proposed phasing appears to correlate more with the anticipated excavation sequence rather than the proposed bond scenario. Please specify the maximum disturbance (in acres) the operation proposes at this time (e.g., slurry wall installation, mining, stockpiling, processing, equipment/truck storage, stormwater control features, sediments ponds, scale/scale house, improved or newly created access/haul roads). Additionally, please specify the type and approximate amount of disturbance (in acres) to occur in each phase for the proposed maximum disturbance and bond scenario. Response: The maximum disturbance has been provided in the revised Exhibit L bond calculations for the Phase 1 mining. An Exhibit L map has also been provided to provide more detail of the total disturbed area for the phases of mining. We have calculated the slurry wall costs for the bonding of Phase 1, however J-2 Contracting Company is. 1 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -12- 8/26/19 proposing to have DPG Farms, LLC pledge their Patterson Ditch shares to the mine permit for use in augmenting for the groundwater depletions should the slurry wall not get installed for Phase 1. In addition to the shares an additional $150,000 is proposed to be bonded for to cover the administration costs (water rights engineering and attorney fees) for changing the shares to augmentation uses from irrigation through the Division of Water Resources and Colorado Water Court. If this is acceptable DPG Farms, LLC will provide an affidavit for approval from the Division of Water Resources dedicating the Patterson Ditch shares to the mine. This combination of water shares and bonding will only be valid for Phase 1 of the mining. Additional Phases will require bonding for the slurry wall construction and water shares will be turned back over to DPG Farms, LLC once approval of the slurry wall for Phase 1 has been provided to the DRMS. 46) Please submit an Exhibit L map showing the proposed scenario for the reclamation bond. This map should depict the site at the point of maximum disturbance (as proposed at this time), and should correlate with the bond estimate provided. Please be sure the map shows expected locations of topsoil and overburden stockpiles at that point in time, so the Division can estimate haul distances. Response: The maximum disturbance has been provided in the revised Exhibit L bond calculations for the Phase 1 mining. An Exhibit L map has also been provided to provide more detail of the total disturbed area for the phases of mining. 47) Please provide costs for installing all components of the proposed inlet/outlet structures for the proposed point of maximum .disturbance. For example, if the operator is proposing to... be .bonded at this timefaronly the Phase 1-2 Pit/Reservoir ,1., then only the applicable inlet/outlet structures proposed for that reservoir would need to be included in the bond estimate at this time. Response: The revised Exhibit L bond calculations have been updated to include the costs for the riprap lined spillways associated with each phase. 48) Please be advised, the Division must hold 100% of the costs for installing the 1st slurry wall enclosure until the operator demonstrates the liner has been approved by the SEO, at which time, the operator may request a surety reduction to include 20% of the construction costs for this enclosure. The Division must hold a minimum of 20% of the construction costs for each completed and SEO approved slurry wall enclosure until the reservoir has been released from the permit. Please confirm the 1st slurry wall enclosure will be installed around Phases 1 and 2, identified as Reservoir 1 on Exhibit F-1 Reclamation Plan Map. Additionally, please be sure the bond estimate includes 100% of the costs for installing at a minimum the 1st slurry wall enclosure. Response: The revised Exhibit L bond calculations include bonding for the slurry wall around Phase 1. The bond will be increased to include Phase 2 with a Technical Revision prior to starting mining in Phase 2. 49) The summary of unit costs specifies a dollar amount per foot for installation of each of the proposed five phases of slurry wall installation, including 0-50 feet at $3/foot, 51-70 feet at $4/foot, and 71- 95 feet at $13/foot, and provides an estimated total cost per linear foot for each of the five phases. However, the Division is unable to confirm the total cost for each phase of slurry wall construction without knowing the depths of installation for each phase. Please provide the average depth of installation for each slurry wall enclosure. Response: The average depth of slurry wall installation for Phase 1 is 80 feet. The average depth of slurry wall installation for Phase 2 is 85 feet. The average depth of V 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -13- 8/26/19 slurry wall installation for Phase 3 is 80 feet. The average depth of slurry wall installation for Phase 4 is 94 feet. The average depth of slurry wall installation for Phase 5 is 60 feet. Exhibit M — Other Permits and Licenses (Rule 6.4.13): 50) Will the operator be seeking SEO approval of the proposed slurry wall liners? If so, please include this "approval" in the list provided. Response: Yes, the approval has been added to the list in Exhibit M. 51) Will the operator be required to obtain a Section 404 permit from the U.S. Army Corps of Engineers in order to conduct the proposed mining and reclamation operations? If so, please include this "permit" in the list provided. The Division understands the operator may still be waiting on a jurisdictional determination from the USACE for the several aquatic resources identified on and nearby the proposed affected lands. In this case, the operator may state that a Section 404 permit may be required depending on the results of this determination. Response: No, a Section 404 permit is not anticipated and ERC is working with the Corps of Engineers to get a jurisdictional determination to make sure no permit is needed. Exhibit S - Permanent Man-made Structures (Rule 6.4.19): 52) Please provide a list of all permanent, man-made structures located on or within 200 feet of the proposed affected land boundary, and their respective owner(.).. Response:. A list is included in the revised Exhibit S and labels are provided on the Mining Plan maps. 53) On June 17 and 18, 2019, the operator provided the Division with copies of the structure agreements mailed (on June 18, 2019) to owners of structures located on or within 200 feet of the proposed affected land boundary, and Certified Mail Receipts for the mailings. The Division has the following questions regarding these materials: a. While the operator provided a copy of the structure agreement sent to Xcel Energy, the Division could not find the associated Certified Mail Receipt: Please provide the Certified Mail Receipt demonstrating a structure agreement has been attempted with Xcel Energy. b. While the operator provided a copy of the structure agreement sent to Extraction Oil & Gas, the Division could not find the associated Certified Mail Receipt. Please provide the Certified Mail Receipt demonstrating a structure agreement has been attempted with Extraction Oil & Gas. c. While the operator provided a copy of the Certified Mail Receipt for SRC Energy Inc.,. the Division could not find the associated structure agreement. Please provide a copy of the structure agreement that was mailed to SRC Energy Inc. d. While the operator provided a copy of the Certified Mail Receipt for PDC Energy Inc., the Division could not find the associated structure agreement. Please provide a copy of the structure agreement that was mailed to PDC Energy Inc. 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -14- 8/26/19 e. While the operator provided a copy of the Certified Mail Receipt for Kerr-McGee Oil & Gas Onshore LP, the Division could not find the associated structure agreement. Please provide a copy of the structure agreement that was mailed to Kerr-McGee Oil Gas Onshore LP. f. Until all structure owners have been identified on the Exhibit C maps, and the structure owner list (requested in item no, 52 above) has been provided, the Division cannot confirm that structure agreements have been attempted for all applicable structure owners. Please be sure that proof of such an attempt is provided for all permanent, man-made structures (not owned by J-2 Contracting Company) which are, located on or within 200 feet of the proposed affected lands. Response: The certified mail receipts were sent along with the letters to match the receipts in response to your e-mail on 7/12/19. Attached is a structure agreement letter for the DPG owned structures stating that J-2 Contracting Company can mine within 200 feet and also remove structures where needed to mine. 54) The application includes a Slope Stability Report, (report) prepared by J&T Consulting, Inc., intended to satisfy the requirementsof Rule 6.4.19(b) in the event that structure agreements cannot be reached. The Division has the following comments/questions regarding this report: a. No executed structure agreements have been submitted at this time for structures located on or within 200 feet of the proposed affected lands. Therefore, pursuant to Rule 6.4.19(b), the applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation. However, the report submitted does not address all structures identified on the Exhibit C maps. Please be advised, for all structures located on or within 200 feet of the proposed affected lands, which the operator is unable to obtain an executed structure agreement, an appropriate engineering evaluation must be provided which demonstrates such structures will not be damaged by activities occurring at the mining operation. b. The report does not suggest setbacks for several structures shown to be located within the proposed affected lands on the Exhibit C maps, including gas lines, gas tanks, fence lines, buildings, a pond, and Holly Avenue. Additionally, proposed setbacks for these structures are not shown on the Exhibit C maps. In fact, it appears the operation will mine through most of these structures. Please be advised, for any structures not owned by J-2 Contracting Company, which will be affected by the operation, the Division must receive a notarized agreement between the operator and the structure owner acknowledging as such. c. The report states the design criteria used to establish the desired minimum safety factors for the proposed project include a Factor of Safety (FOS) of 1.3 for static conditions, and a FOS of 1.0 for pseudo -static conditions. The policy of the Mined Land Reclamation Board for Factors of Safety for Slope Stability/Geotechnical Analyses (see enclosed policy) recommends the following minimum FOS for non- critical structures (e.q., fences): a FOS of 1.3 for static conditions and a FOS of 1.15 for analyses using seismic parameters; and for critical structures (e.g., residences, utilities, dams, pipelines, irrigation canals, public roads): a FOS of 1.5 for static conditions and a . FOS of 1.3 for analyses using seismic parameters. Please be V 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -15- 8/26/19 advised, the Division considers the majority of the structures located on or within 200 feet of the proposed affected lands (including all structures assessed in the slope stability report) to be critical structures. Therefore, please revise the report to include design criteria based on a FOS of 1.5 for static conditions and a FOS of 1.3 for analyses using seismic parameters. d. The report lists four recommendations for monitoring of slope stability, including, conducting a visual inspection of the excavated slopes on a weekly basis for the duration of mining, conducting a visual inspection after a major precipitation event that has saturated the ground using the same procedures, contacting qualified personnel to evaluate and recommend remediation work to stabilize the area in the event a visual inspection detects signs of potential slope failure, and if no visible signs of slope failure are detected during mining, reducing visual inspections to once every six months after mining completion, or after every major precipitation event. Please incorporate these recommendations into the proposed mining and reclamation plans. Response: a. An agreement with DPG Farms, LLC is attached. For all the structures not owned by DPG Farms, LLC within mining phases there are several that are in the process of being abandoned and J-2 Contracting Company is actively working with these structure owners._ to determine when they will be abandoned. J-2 Contracting Company commits to not mining within 200 feet of the structures not owned by DPG Farms, LLC that are within the mining phases until the structur..eowner abandons and removes them from the mining phases. b. For all the structures not owned by DPG Farms, LLC within mining phases there are several that, are in the process of being abandoned and J-2 Contracting is actively working with these structure owners to determine when they will be abandoned. J-2 Contracting Company commits to not mining within 200 feet of the structures not owned by DPG Farms, LLC that are within the mining phases until the structure owner abandons and removes them from the mining phases or an agreement is in place. A copy of any agreement once it is in place will be provided to the DRMS. The other structures that are outside the mining limits have slope stability cases that are associated with the worst case scenario based on the proximity to the top of slope of the mining and the setbacks have been determined and updated to meet the factors of safety required by the MLRB Policy. c. The slope stability models have been revised and updated. The setbacks have been determined and updated to meet the factors of safety required by the MLRB Policy. d. J-2 Contracting Company commits to incorporating the recommendations for monitoring the slopes of the mining from the slope stability study into the mining and reclamation plans. Additional Item(s): 55) Pursuant to Rule 1.6.2(1)(b), the Applicant shall provide a signed affidavit with the application that notice signs have been posted at the location of the proposed mine site V 305 Denver Avenue - Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response 8/26/19 -16- according to the provisions of this Rule. A sample notice and affidavit form (see enclosed) was provided in the 112c permit application package. However, the Division was not able to find the required signed affidavit in the application materials submitted. Therefore, please submit a signed affidavit that satisfies the requirements of Rule 1.6.2(1)(b). Response: The signed affidavit was sent via e-mail and confirmed by you that it had been received on 7/31/19. The hard copy was mailed to your office. 56) On June 17 and 18, 2019, the operator provided the Division with copies of the notices required by Rule 1.6.2(1)(f), and Certified Mail Receipts for the mailings. The Division has the following questions regarding these materials: a. While the operator provided a copy of the notice sent to Kerr-McGee Oil & Gas Onshore LP, the Division could not find the associated Certified Mail Receipt. Please provide the Certified Mail Receipt demonstrating the notice was mailed to Kerr- McGee Oil & Gas Onshore LP. b. While the operator provided a copy of the notice sent to PDC Energy Inc., the Division could not find the associated Certified Mail Receipt. Please provide the Certified Mail Receipt demonstrating the notice was mailed to PDC Energy Inc. c. While the operator provided a copy of the notice sent to SRC Energy Inc, the Division could not find the associated Certified Mail Receipt. Please provide. the Certified Mail Receipt demonstrating the notice was mailed to SRC Energy Inc.' d. While the operator provided a copy of the Certified Mail Receipt for Xcel Energy, the Division could not find the associated notice. Please provide a copy of the notice that was mailed to Xcel Energy. Response: The certified mail receipts were sent along with the letters to match the receipts in response to your e-mail on 7/12/19. 57) The comment letters received thus far on the application are enclosed for your review. Please inform the Division of how the operator intends to address any jurisdictional concerns expressed in these letters. Response: Division of Water Resources — A well permit and Substitute Water Supply Plan (SWSP) will be applied for at the time we receive an approval from Weld County for the Use by Special Review Permit. J-2 Contracting Company commits to providing the applications for a well permit and SWSP to o the DRMS once they have been submitted to the Division of Water Resources. History Colorado — J-2 Contracting Company commits to following the state requirements under State Law CRS 24 80 part 13 if human remains are discovered. Town of Kersey - The proposed stockpiles are located in the floodplain but not within the floodway. A floodplain model and analysis was conducted for the proposed mining and included in the permit application submittal. The modeling shows no impacts to adjacent properties based on the mining conditions. 58) Please remember that, pursuant to Rule 1.6.2(1)(c), any changes or additions to the V 305 Denver Avenue - Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 RE: J-2 Contracting Company — DPG Pit — Permit No. M-2019-028 112(c) Permit Application Adequacy Review No. 1 Response -17- 8/26/19 application on file in our office must also be reflected in the public review copy which was placed with the County Clerk and Recorder. Pursuant to Rule 6.4.18, you must provide our office with an affidavit or receipt indicating the date this was done. Response: Any changes or additions to the application have been delivered to the Weld County Clerk to the Board to be placed with the public review copy. We have provided transmittals date stamped by the Weld County Clerk to the Board via e-mail to you on 7/31/19 for the groundwater model submittal and a hard copy for the original application being placed at the Weld County Clerk to the Board with the permit application materials mailed on 5/22/19. Thank you for your consideration of our responses to the comments. Please feel free to contact me with any questions or if you need additional information. Sincerely, J.C. York, P. J&T Consulting, Inc. Attachments: 1. Revised Application Pages 2. Exhibit A 3. Exhibit C Mining Maps 4. Exhibit D Mining Plan 5. Exhibit E Reclamation Plan 6. Spillway Design Calculations 7. Exhibit F Reclamation Plan Maps 8. Exhibit G Water Information 9. Exhibit H Wildlife Information 10. Exhibit J Vegetation Information 11. Exhibit L Reclamation Costs 12. Exhibit M Other Permits and Licenses 13. Exhibit S Permanent Man-made Structure 14. Revised Slope Stability Report 15. DPG Farms, LLC Structure Agreement 4 1� 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 • Fax: 303-857-6224 STATE OF COLORADO DIVISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 CONSTRUCTION MATERIALS REGULAR (112) OPERATION RECLAMATION PERMIT APPLICATION FORM COLORADO DIVISION Of RECLAMATION MINING SAFETY CHECK ONE: ❑ There. is a File Number Already Assigned to this Operation Permit # M - (Please reference the file number currently assigned to this operation) New Application (Rule 1.4.5) Amendment Application (Rule 1.10) Conversion Application (Rule 1.11) Permit # M - - - (provide for Amendments and Conversions of existing permits) The application for a Construction Materials Regular 112 Operation Reclamation Permit contains three major parts: (1) the application form; (2) Exhibits A -S, Addendum 1, any sections of Exhibit.6.5 (Geotechnical Stability Exhibit; and (3) the application fee. When you submit your application, be sure to include one (1) complete signed and notarized ORIGINAL and one (1) copy of the completed application form, two (2) copies of Exhibits A -S, Addendum 1, appropriate sections of 6.5 (Geotechnical Stability Exhibit, and a check for the application fee described under Section (4) below. Exhibits should NOT be bound or in a 3 -ring binder; maps should be folded to 8 1/2" X 11" or 8 1/2" X 14" size. To expedite processing, please provide the information in the format and order described in this form. GENERAL OPERATION INFORMATION Typeor print clearly, in the space provided, ALL information requested below. 1. Applicant/operator or company name (name to be used on permit): J-2 Contracting Company 1.1 Type of organization (corporation, partnership, etc.): Corporation 2. Operation name (pit, mine or site name): DPG Pit Permitted acreage (new or existing site): 3.1 Change in acreage (+) 3.2 Total acreage in Permit area 4. Fees: 4.1 New Application 4.2 New Quarry Application 4.4 Amendment Fee 4.5 Conversion to 112 operation (set by statute) 5. Primary commoditie(s) to be mined: Sand Gravel 228.02 228.02 228.02 $2,696.00 $3,342.00 $2,229.00 $2,696.00 5.1 Incidental commoditie(s) to be mined: 1. - lbs/Tons/yr 2. / 3. / lbs/Tons/yr 4. / lbs/Tons/vr 5. / 5.2 Anticipated end use of primary commoditie(s) to be mined: Construction Aggregates 5.3 Anticipated end use of incidental commoditie(s) to be mined: N/A permitted acres acres acres application fee quarry application amendment fee conversion fee lbs/Tons/yr lbs/Tons/vr 2 6. Name of owner of subsurface rights of affected land: DPG Farms, LLC If 2 or more owners, "refer to Exhibit O". 7. Name of owner of surface of affected land: DPG Farms, LLC . Type of mining operation: Surface Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Weld PRINCIPAL MERIDIAN (check one): 6th (Colorado) El 10th (New Mexico) El Ute SECTION (write number): S 12 TOWNSHIP (write number and check direction): T 5 ✓ - North IDSouth RANGE (write number and check direction): R 65 11 East ✓ West QUARTER SECTION (check one): El NE S SW QUARTER/QUARTER SECTION (check one): NE ✓ NW SE SW GENERAL DESCRIPTION: (the number of miles and direction from the nearest town and the approximate elevation): 2 miles west and 2 miles north of Kersey, CO.Elevation = 4600 10. Primary Mine Entrance Location (report in either Latitude/Longitude OR UTM): Latitude/Longitude: Example: (N) 39° 44' 12.98" (W) 104° 59' 3,87" Latitude (N): deg 40 min 24 sec 50 36 (2 decimal places) Longitude (W): deg -104 min 37 sec 19 33 (2 decimal places) OR Example: (N) 39.73691° (W) -104.98449° Latitude (N) (5 decimal places) Longitude(W) (5 decimal places) OR Universal Tranverse Mercator (UTM) Example: 201336.3 E NAD27 Zone 13 4398351.2 N UTM Datum (specify NAD27, NAD83 or WGS 84) Nad 83 Zone 13 Easting Northing 3- 11. Correspondence Information: APPLICANT/OPERATOR (name, address, and phone of name to be used on permit) Contact's Name: Chris Leone Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: Title: Owner J 2 Contracting Company 105 Coronado Ct. Unit A-101 Fort Collins P.O. Box: Colorado (970 ) _ 392-0694 (970 ) _ 392-0695 Zip Code: 80525 PERMITTING CONTACT (if different from applicant/operator above) Contact's Name: J.C. York Title: Principal/Owner Company Name: J&T Consulting, Inc. Street/P.O. Box: 305 Denver Avenue, Suite D P.O. Box: City: Fort Lupton State: Colorado Zip Code: 80621 Telephone Number: 303 ) - 857-6222 Fax Number: (303 ) _ 857-6224 INSPECTION CONTACT Contact's Name: Same As Applicant/Operator Title: Company Name: Street/P.O. Box: P.O. Box: City: State: Zip Code: Telephone Number: ( ) Fax Number: ( ) - CC: STATE OR FEDERAL LANDOWNER (if any) Agency: N/A Street: City: State: Zip Code: Telephone Number: ( ) - CC: STATE OR FEDERAL LANDOWNER (if any) N/A Agency: Street: City: State: Telephone Number: Zip Code: Certification: As an authorized representative of the applicant, I hereby certify that the operation described has met the minimum requirements of the following terms and conditions: 1. To the best of my knowledge: all significant, r aluablc and permanent man-made structures) in existence at the time this application is filed. and located IN ithin 200 feet of the proposed affected area have been identified in this application (Section 34-32.5-115(4)(e), C.R.S.). 2. No minim operation mill be located on lands where such operations are prohibited by lay. (Section 34-32.5-115(4)(0, C. 3. As the applicant/operator. I do not have an. extraction/exploration operations in the State of Colorado currently in violation of the provisions or the Colorado Land Reclamation Act for the Extraction of Construction Materials (Section 34-32.3-120. C.R:S.) as determined through a Board funding. 4. I understand that statements in the application are being made ender penalty of perjury- and that raise statements made herein are punishable as a Class f misdemeanor pursuant to Section 18-8-503. C.R.S. This form has been approved by the Mined Land Reclamation Board pursuant to section 3d -32.a- i i2,( R..S., of the Colorado Land Reclamation .let fur the Extraction of Construaion,Materials. Any alteration or modification of this form shall result in voiding any permit issued on the altered or mowed form and subject the operator to cease and desist orders and civil penalties fur operating without a permit pursuant to section 34-32.5-123, CRS, Signed and dated this eavriedier Applicant/Operator or Company Name Signed: Title: bregom lent 1,vs acknowledged before me t br ✓"t RrF' a If Corporation Attest Sign Corporate Secretary or Equivalent Town/City/County Clerk Public mmission expire GNATURES MUST BE IN BLUE INK You must post sufficient Notices at the location of the proposed mine site to clean identity the site as the location of a EXHIBIT A Legal Description A tract of land located in the north 1/2 of section 12, and the southeast 1/4 of northeast corner of section 11, township 5 north, range 65 west of the 6th p.m., and the south 1/2 section of section 1, township 6 north, range 65 west of the 6th p.m., Weld County, Colorado, being more particularly described as follows: Considering the west line of the northwest 1/4 of said section 12 to bear N00°027'58"W with all other bearings contained herein being relative thereto; The TRUE POINT OF BEGINNING being the west 1/4 corner of said section 12; Thence, S 88° 35' 09.95" W for a distance of 607.32 feet to the beginning of a non -tangential curve, Said curve turning to the right through an angle of 13° 22' 11.8", having a radius of 957.28 feet, and whose long chord bears N 27° 17' 24.55" E for a distance of 222.87 feet to a point of intersection with a non -tangential line. Thence, N 33° 43' 14.00" E for a distance of 999.95 feet to the beginning of a curve, Said curve turning to the left through an angle of 29° 08' 55.8", having a radius of 1270.00 feet, and whose long chord bears N 19° 08' 46.00" E for a distance of 639.16 feet to a point of intersection with a non -tangential line. Thence, S 85° 25' 00.56" E for a distance of 30.00 feet to the beginning of a non -tangential curve, Said curve turning to the left through an angle of 04° 01' 06.9", having a radius of 1300.00 feet, and whose long chord bears N 02° 33' 45.47" E for a distance of 91.16 feet to a point of intersection with a non -tangential line: Thence, N 00° 33' 50.80" E for a distance of 256.22 feet to a point on a line. Thence, N 87° 05' 59.89" E for a distance of 34.48 feet to a point on a line. Thence, N 64° 03' 50.91" E for a distance of 97.06 feet to a point on a line. Thence, N 41° 46' 47.83" E for a distance of 80.13 feet to a point on a line. Thence, N 41° 46' 47.83" E for a distance of 52.73 feet to a point on a line. Thence, N 37° 35' 24.70" E for a distance of 149.84 feet to a point on a line. Thence, N 30° 38' 57.11" E for a distance of 136.89 feet to a point on a line. Thence, N 17° 43' 22.57" E for a distance of 260.77 feet to a point on a line. Thence, N 16° 45' 22.72" E for a distance of 89.69 feet to a point on a line. Thence, N 31' 10' 23.60" E for a distance of 86.23 feet to a point on a line. Thence, N 25° 55' 19.05" E for a distance of 40.22 feet to a point on a line. Thence, N 49° 07' 23.77" E for a distance of 96.83 feet to a point on a line. Thence, N 61° 49' 57.57" E for a distance of 153.04 feet to a point on a line. Thence, N 58° 41' 27.77" E for a distance of 136.15 feet to a point on a line. Thence, N 75° 53' 20.05" E for a distance of 48.30 feet to a point on a line. Thence, S 78° 21' 52.04" E for a distance of 127.62 feet to a point on a line. Thence, S 63° 03' 59.59" E for a distance of 132.31 feet to a point on a line. Thence, S 54° 45' 28.61" E for a distance of 80.87 feet to a point on a line. Thence, S 56° 15' 45.61" E for a distance of 181.49 feet to a point on a line. Thence, S 86° 16' 13.73" E for a distance of 128.96 feet to a point on a line. Thence, N 54° 28' 11.49" E for a distance of 57.52 feet to a point on a line. Thence, N 46° 45' 12.18" E for a distance of 70.33 feet to a point on a line. Thence, N 27° 55' 08.37" E for a distance of 49.49 feet to a point on a line. Thence, N 19° 42' 00.67" E for a distance of 147.26 feet to a point on a line. JaT Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application Thence, N 65° 41' 22.38" E for a distance of 137.02 feet to a point on a line. Thence, N 87° 40' 03.58" E for a distance of 115.87 feet to a point on a line. Thence, S 69° 13' 22.59" E for a distance of 87.06 feet to a point on a line. Thence, N 76° 17' 20.42" E for a distance of 75.17 feet to a point on a line. Thence, N 79° 42' 25.96" E for a distance of 75.00 feet to a point on a line. Thence, N 66° 44' 54.59" E for a distance of 150.42 feet to a point on a line. Thence, N 78° 14' 04.97" E for a distance of 69.30 feet to a point on a line. Thence, N 84° 26' 27.67" E for a distance of 43.80 feet to a point on a line. Thence, S 76° 26' 03.93" E for a distance of 118.23 feet to a point on a line. Thence, S 86° 08' 26.07" E for a distance of 122.87 feet to a point on a line. Thence, N 76° 11' 53.37" E for a distance of 331.13 feet to the beginning of a non -tangential curve, Said curve turning to the left through an angle of 76° 19' 13.8", having a radius of 445.24 feet, and whose long chord, bears N 33° 44' 04.36" E for a distance of 550.20 feet to a point of intersection with a non -tangential line. Thence, N 03° 04' 24.45" W for a distance of 201.01 feet to a point on a line. Thence, N 21° 15' 40.46" E for a distance of 158.44 feet to a point on a line. Thence, N 85° 01' 26.46" E for a distance of 145.44 feet to a point on a line. Thence, S 75° 54' 51.91" E for a distance of 220.69 feet to a point on a line. Thence, N 88° 00' 29.75" E for a distance of 194.56 feet to a point on a line. Thence, S 01° 59' 30.25" E for a distance of 221.70 feet to a point on a line. Thence, S 87° 35' 12.51" E for a distance of 932.52 feet to a point on a line. Thence, S 06° 13' 46.65" W for a distance of 35.25 feet to a point on a line. Thence, S 23° 50' 41.30" W for a distance of 267.24 feet to a point on a line.' Thence, S 51° 20' 56.00" W for a distance of 140.26 feet to a point on a line. Thence S 23° 50' 52.00" W for a distance of 1091.10 feet to a point on a line. Thence, S 12° 48' 09.00" E for a distance of 731,25 feet to a point on a line. Thence, S 05 33' 48.00" W for a distance of 91.69 feet to a point on a line. Thence, S 12° 41' 15.00" E for a distance of 106.98 feet to a point on a line. Thence, S 75° 25' 54.16" W for a distance of 918.21 feet to a point on a line. Thence, N 18° 03' 30.59" W for a distance of 142.96 feet to a point on a line. Thence, S 74° 27' 38.32" W for a distance of 25.26 feet to a point on a line. Thence, S 15° 32' 21.68" E for a distance of 142.28 feet to a point on a line. Thence, S 75° 25' 54.16" W for a distance of 37.14 feet to a point on a line. Thence, S 72° 21' 56.18" W for a distance of 349.70 feet to a point on a line. Thence, N 70° 23' 54.75" W for a distance of 635.99 feet to the beginning of a non -tangential curve, Said curve turning to the right through an angle of 07° 41' 07.0", having a radius of 421.44 feet, and whose long chord bears N 57° 50' 15.41" W for a distance of 56.49 feet to a point of intersection with a non -tangential line. Thence, N 57° 50' 15.41" W for a distance of 26.30 feet to the beginning of a non -tangential curve, Said curve turning to the right through an angle of 00° 11' 16.5", having a radius of 8830.64 feet, and whose long chord bears N 57° 50' 15.41" W for a distance of 28.96 feet to a point of intersection with a non -tangential line. Thence; N 67° 47' 18.88" W for a distance of 69.64 feet to the beginning of a non -tangential curve, Said curve turning to the left through an angle of 03° 30' 31.0", having a radius of 688.63 feet, and whose long chord bears N 84° 39' 31.78" W for a distance of 42.16 feet to a point of intersection with a non -tangential line. 40 4 0 J&T Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application Thence, S 67° 09' 41.66" W for a distance of 82.93 feet to a point on a line. Thence, S 61° 57' 59.22" W for a distance of 564.11 feet to a point on a line. Thence, S 73° 27' 17.62" W for a distance of 198.67 feet to the beginning of a non -tangential curve, Said curve turning to the left through 11° 32' 41.0", having a radius of 1348.32 feet, and whose long chord bears S 75° 14' 40.61" W for a distance of 271.22 feet to the beginning of a non - tangential curve, Said curve turning to the right through 03° 50' 53.2", having a radius of 4578.11 feet, and whose long chord bears S 75° 53' 05.32" W for a distance of 307.42 feet to the beginning of a non- tangential curve, Said curve turning to the left through 25° 45' 02.1", having a radius of 261.57 feet, and whose long chord bears S 62° 45' 23.57" W for a distance of 116.57 feet to the beginning of a non - tangential curve, Said curve turning to the left through 21° 44' 32.9", having a radius of 540.65 feet, and whose long chord bears S 45° 02' 28.64" W for a distance of 203.94 feet to the beginning of a non - tangential curve, Said curve turning to the left through an angle of 11° 45' 12.5", having a radius of 987.88 feet, and whose long chord bears S 32° 01' 16.02" W for a distance of 202.30 feet to a point of intersection with a non -tangential line. Thence, S 28° 32' 11.27" W for a distance of 228.41 feet to a point on a line. Thence_ , S 34° 36' 51.31" W for a distance of 210.38 feet to a point on a line. thence S 46° 38' 46.18" W a distance of 239.82 feet to a point on a line; Thence, N 88° 47' 19.83" W for a distance of 430.73 feet to the TRUE POINT OF BEGINNING. SAID TRACT CONTAINS 227.52 ACRES MORE OR LESS. The proposed mine entrance coordinates are as follows: Latitude (N) 40°24'50.36" Longitude (W) -104°37'19.33" I JaT Consulting, InWI c. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application FILE CONTAINS OVERSIZED MAP PLEASE SEE ORIGINAL FILE EXHIBIT D Mining Plan Mining Limits J-2 Contracting proposes to mine in the land located in the north 1/2 of section 12, and the southeast 1/4 of northeast corner of section 11 township 5 north, range 65 west of the 6th p.m., and the south 1/2 section of section 1, township 6 north, range 65 west of the 6th p.m., Weld County, Colorado. The proposed mining site is located approximately 2 miles north and 2 miles west of the Town of Kersey, and approximately 2 miles north of State Highway 34. The South Platte River is approximately 600 feet south of the site on the west side of the permit boundary and 200 feet south and east of the site on the east side of the permit boundary. The Cache La Poudre River is adjacent to the north side of the permit boundary. The Weld County Parkway is immediately adjacent to the west side of the permit boundary. Access to the site will be located at the southwest corner of the permit boundary off of the Weld County Parkway. The dominant land use surrounding the property is agricultural. An aggregate processing plant area and a concrete and asphalt batch plant area will be located within the mining area as shown on the Mining Plan Map. These areas will contain stockpiles, portable equipment, storage bins, and silos as necessary to support the plant operations. Designated locations for concrete truck washout and excess concrete product dumping will be provided to ensure, that waste materials are recycled and kept from entering the stormwater flows on the site. The concrete truck washout area will be a 30 foot by 20 foot three cell concrete structure. Concrete trucks will wash the residual product from their mixing drums and chutes into the first. cell of the structure. The first cell spills into the second cell, which spills into the third cell. This allows the aggregate and suspended fines to settle into the cells over time. The water and settled material in the three cells is then removed as required and recycled into the concrete batch plant. Generally, the cells are cleaned on a weekly schedule. The excess product dumping area will be approximately 50 feet by 100 feet and have an exterior berm to limit the migration of stormwater flows to and from the surrounding areas. Excess product that is deposited in this area will be allowed to cure for approximately 90 days until it becomes inert. It will then be crushed and recycled. All local, State, and Federal rules and regulations will be followed for the storage and handling of any fuel, asphalt, cement, flyash, and admixtures required for the batching facilities. The permit boundary will encompass approximately 227.52 acres which will all be affected acreage, and approximately 189.60 acres being mined. The remaining area will consist of access roads and disturbed land. The following table depicts the different affected acreage: J T Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application Affected Acreage Mining Plan Area (acres) Mined Area 189.60 Access Roads 21.56 Disturbed Land 16.36 TOTAL 227.52 Various setbacks from adjacent roads, adjacent structures, and oil and gas infrastructure will be maintained as mining occurs. All setbacks specified in the surface use agreements with the oil/gas companies will be followed. The final executed agreements are expected to be obtained in the near future and will be forwarded to the Division when they are available. A minimum 200 foot setback from any existing oil/gas facility will be maintained until that time. See Exhibit C, Mining Plan Map, and the Slope Stability Report for the mining limit configuration and information on setbacks and their locations. Products Sand and gravel will be the primary product produced from the DPG Mining site. The principal intended use for the sand and gravel is for road base and construction aggregates. Subsurface drilling and testing have verified that the DPG Mining site property contains a significant commercial deposit of sand and gravel. The depth of interbedded sandy clays and clayey to silty sands at the surface range from 3 to 12 feet. The thickness of the aggregate material ranges from 67 to 102 feet where bedrock contact occurs. Mining Methods The deposit will be dry mined and a slurry wall will be constructed around the perimeter of the mining area for Phase 1. Phase 2, 3, 4, and 5 will not be opened until the slurry -wall is constructed around each phase prior to mining each phase. Design specifications for the slurry wall and quality control procedures used during construction will ensure that the reclaimed reservoir meets State Engineer's Office (SEO) performance standards. Dewatering trenches will be excavated around the perimeter of each mining area in Phases 1 - 5 prior to mining operations commencing. The depth of the ditches will vary as the mining progresses deeper into the alluvium in order to maintain the groundwater level below the active mining bottom surface, and therefore minimize the exposed groundwater surface area. The dewatering ditches will flow to a collection pond, from which the water will be pumped into a ditch, which traverses the mining phases and eventually discharged into the Cache La Poudre River. The equipment and facilities may include, but are not limited to the following: Processing Equipment Screens, crusher, conveyors, stackers, and other miscellaneous processing equipment. Earth Moving Equipment Dozers, loaders, scrapers, excavators, and compactors will be used for mining and earth moving operations. J&T Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application Miscellaneous Equipment Dewatering pumps, electrical trailer, generator trailer, small portable generators and watering trucks will be used as needed. As mining progresses, topsoil and overburden will be stripped to expose the aggregate product below. All soil and overburden material will be used on -site for reclamation; so long-term stockpiling of these materials is not anticipated. Overburden stockpiles will be located within the proposed mining area. The stockpiles will be placed parallel to the floodplain to mitigate impacts to the floodplain. Mining of the aggregate will progress down to the underlying bedrock. Since reclamation will occur concurrently with mining, it is not anticipated that overburden material will be stockpiled. long-term prior to use in production of road base. During mining the mining face will have a 3H:1V slope to bedrock or the bottom of the future reclaimed reservoir. The processed aggregate material will be temporarily stockpiled near the portable processing plant. Recommendations for monitoring of slope stability, including, conducting a visual inspection of the excavated slopes on a weekly basis for the duration of mining, conducting a visual inspection after a major precipitation event that has saturated the ground using the same procedures, contacting qualified personnel to evaluate and recommend remediation work to stabilize the area in the event a visual inspection detects signs of potential slope failure, and if no visible signs of slope failure are detected during mining, reducing visual inspections to once every six months after mining completion, or after every major precipitation event. All local, State, and Federal rules and regulations will be followed for the storage and handling of any fuel for the facilities. Topsoil Handling Plan As stated previously the topsoil will be stripped to expose the aggregate product underlying the topsoil. The topsoil will be stripped using scrapers and stockpiled in the topsoil stockpile as depicted in Exhibit C. The volume of topsoil for all the mining phases is approximately 306,000 cubic yards. The depth of the topsoil is approximately twelve inches over the majority of the mining area. The topsoil will be stripped and stockpiled during each phase of mining where topsoil will only be removed for Phase 1, Phase 2, Phase 3, Phase 4, and Phase 5 as they are going to be mined. The height of the topsoil stockpile will be approximately 15 feet. Mine Phasing J-2 Contracting anticipates mining and reclaiming the DPG Mining site in 5 phases, progressing through the phases as shown on the Mining Plan Map. The overall time required to complete the mining and reclamation is estimated to be 30 years. Maximum production is expected to be 750,000 tons per year. However, it is possible that due to demand fluctuations, mining could progress slower than anticipated and additional time may be required for mining and reclamation of the site. J-2 Contracting Company will mine down to an elevation of 4523 in Phase 1 of the mining plan encompassing a total of 24.6 acres of the mining limits and groundwater will be exposed. A slurry wall will be constructed around Phase 1. The operator is proposing to mine Phase 1 first that is 27.15 acres and during this mining there will be 65.4 acres disturbed to provide locations for a scale house and site entrance roadway, haul roads, stockpiles, processing areas, settling ponds, a recharge pond, and an overflow pipe from the recharge pond that are outside of Phase 1. Prior to or during the initial mining of Phase UT Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application 1 a slurry wall will be installed around the perimeter of Phase 1 and extend to Phase 2. The estimated time for mining Phase 1 is approximately 4 years. The operator is proposing to mine Phase 2 second that is 24.08 acres and during this mining there will be the same 65.4 acres disturbed that were in addition to Phase l's 27.15 acres for a total of 104.61 acres that will be the maximum disturbed area and a Technical Revision will be requested prior to mining into Phase 2. The estimated time for mining Phase 2 is approximately 3 years and 6 months. The operator plans to mine Phase 3 next and prior to mining Phase 3 a slurry wall will be installed around the perimeter. Phase 3 is 48.69 acres and there will be 102.07 acres disturbed as the areas for Phase 1 and 2 will be part of a reclaimed reservoir and likely released when Phase 3 mining starts. The stockpile areas will move to the bottom of Phase 3 after the southern portion of Phase 3 is mined. The estimated time for mining Phase 3 is approximately 10 years. The operator plans to mine Phase 4 next and prior to mining Phase 4 a slurry wall will be installed around the perimeter. Phase 4 is 40.43 acres and there will be 70.16 acres disturbed as the area for Phase 3 will be part of a reclaimed reservoir and likely released when Phase 4 mining starts. The stockpile areas will be in Phase 4 and move to the bottom of Phase 4 after the southern portion of Phase 4 is mined. The estimated time for mining Phase 4 is approximately 8 years and 5 months. The operator plans to mine Phase 5 next and prior to mining Phase 5 a slurry wall will be installed around the perimeter. Phase 5 is 33.76 acres and there will be 53.64 acres disturbed as the area for Phase 4 will be part of a reclaimed reservoir and likely released when Phase 5 mining starts. The stockpile areas will be in Phase 5 and move to the bottom of Phase 5 after the southern portion of Phase 5 is mined. The estimated time for mining Phase 5 is approximately 7 years and 4 months. The mining will progress in each phase beginning at the outer edge of the phase where material will be moved toward the interior .of the phase such that a 3H:1V mining slope can be established on the exterior of the phase and then transition to a 3H:1V slope. The mining slope will be established for the entire perimeter of the phase in 3 to 6 feet intervals. In Phases 1 5 a dewatering trench around the perimeter will be placed at the toe of the 3H:1V or 3H:1V mining slope. As the phase is mined deeper the dewatering trench will be lowered and moved laterally along the 3H:1V and then the 3H:1V mining slope toward the center of that phase. Once the interior footprint becomes small enough where the 3H:1V mining slopes from three to four sides are encroaching upon the portable plant and haul roads another phase will be opened to continue mining. Dewaterinq Dewatering trenches will be placed along the perimeter of each mining area in Phases 1 — 5. The dewatering trench around the perimeter of the phase being mined will be placed at the toe of the 3H:1V mining slope. As the phase is mined deeper the dewatering trench will be lowered and moved laterally along the 3H:1V mining slope toward the center of that phase. Once the interior area becomes small enough where the 3H:1V mining slopes from three to four sides are encroaching upon the portable plant and haul roads another phase will be opened to continue mining. The slurry wall is anticipated to be installed around the perimeter of Phase 1 and prior to starting mining in Phase 2 and it is expected minimal dewatering will be required in the subsequent phases due to the slurry wall cutting off groundwater infiltration into the pit. J-2 Contracting Company will have an approved substitute water supply plan and well permit prior to exposing groundwater. The substitute supply plan will be updated annually to account for water that is consumed due to exposing groundwater by the mining operation. Explosives Explosives will not be used during mining. l JoT Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application EXHIBIT E Reclamation Plan Lined water storage reservoirs will be the final reclaimed use for the DPG Mining site. Portions of mining areas will be reclaimed as "native" areas, which will be re -seeded with native vegetation. The majority of the mining areas will be reclaimed as water storage reservoirs. The remaining area within the proposed permit boundary will consist of reservoir shoreline, unimproved access roads around the reservoirs, and reclaimed vegetated land. Final Land Use Reclamation Plan Area (acres) Reservoir Water Surface 176.80 Access Roads 21.56 Reclaimed Vegetated Land (Disturbed Land and Slopes above Reservoir Water Surface) 29.16 TOTAL 227.52 Water Storage Reservoir In general, the mining limits will be mined down to the shale/claystone/sandstone bedrock. The relatively impermeable bedrock will make the bottom of the reservoir. The reservoir will be separated from the surrounding alluvial aquifer by the slurry wall liner system as detailed in the cross-section shown on the Reclamation Plan Map. The slurry wall liner will be keyed into the bedrock material and extend upward through the entire height of the alluvium. Design specifications and quality control procedures used during the construction of the slurry wall liner will ensure that the reservoir meets the State Engineer's Office (SEO) performance standards for permeability. The slurry wall is anticipated to be installed around the perimeter of Phase 1 and 2 after a depth of 30 feet is reached in Phase 1 and prior to starting mining in Phase 2 and it is expected minimal dewatering will be required in the subsequent phases due to the slurry wall cutting off groundwater infiltration into the pit. All reservoir slopes will be reclaimed to at least 3H:1V final grade Since reclamation will be concurrent with mining, most soil, overburden, and bedrock material excavated during mining will be used almost immediately. Scrapers and dozers and compactors will be used to shape the reclaimed slope material along the reservoir perimeters to achieve the final grade. Upon placing the backfill material, 95 percent compaction will be achieved to ensure adequate integrity of backfilled areas for haul/access roads and recharge pond areas that are not t within the future water storage/reservoir footprint. Final reclamation by capping with topsoil and re -vegetating above the expected reservoir water level will follow grading operations as well as backfilled areas that will not be haul/access roads to minimize the amount of disturbance at any one time. Recommendations for monitoring of slope stability; including, conducting a visual inspection of the excavated slopes on a weekly basis for the duration of mining, conducting a visual inspection after a major precipitation event that has saturated the ground using the same procedures, contacting qualified personnel to evaluate and recommend remediation work to stabilize the area in the event a visual inspection detects signs of potential slope failure, and if IIS; J&T Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application no visible signs of slope failure are detected during mining, reducing visual inspections to once every six months after mining completion, or after every major precipitation event. During reclamation activities, inlet and outlet facilities for the reservoir will be designed and installed once the operational criteria of the proposed reservoir have been identified by an end user. Reclamation Measures/Materials Handling Backfilling will be done to provide stabilized shorelines around the reservoir and to minimize erosion. The backfill material will consist of gravel, overburden, and topsoil. There will not be known toxic or hazardous materials in the backfill material. Additionally, it is not likely that acid forming or toxic materials will be encountered during mining. The mining will not leave high walls on the property. In addition, there will be no auger holes, excavations, or shafts left on the property. Topsoil will be placed to finalize the grading such that seeding can occur. The topsoil will be placed at all disturbed areas and on the mining slope to an elevation matching the expected reservoir water level. Topsoiling Approximately the top twelve inches of soil on the property is classified as topsoil. This layer includes the root zone of grasses and crops, which will be stripped and stockpiled separately. By using concurrent reclamation techniques, the topsoil is not expected to remain in stockpiles for more than one to five years. If the stockpile remains more than one growing season, it will be seeded with a fast-growing vegetative cover to prevent erosion. All topsoil will be retained on - site to reclaim the reservoir shoreline, and other areas disturbed by mining activities. Where required, topsoil will be replaced to a depth of twelve inches. Revegetation As mining operations are completed, areas for reclamation will be graded and shaped for revegetation. Runoff or excess water from adjacent areas will not be allowed to flow over slopes being graded and seeded. If needed, berms or channels will be constructed to divert excess water and convey it in a safe and non -erosive manner. For disturbed areas, the reclamation plan includes re -vegetating with appropriate seed mixes to minimize erosion and re-establish natural terrain. The seed mixture below was selected to be long lasting and regenerating, as recommended by the Greeley Natural Resource Conservation Service Office (see attached recommendation). The ground will be fine graded prior to seeding and mulch will be applied according to recommendations from the NRCS. Reservoir side slopes below the anticipated reservoir water level will not be seeded. The proposed seed mix is shown in the following table. Final Reclamation Seed Mix Application Rate ` (#PLS/acre) o /0 in mix Sideoats Grama (El Reno variety) 2.7 #PLS/ac 30 Western Wheatgrass (Arriba) 4.0 #PLS/ac 40 Green Needlegrass (Lodorm) 2.0 #PLS/ac 20 Blue Grama (Hachita) 0.45 #PLS/ac 5 MT Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application Switchgrass (Blackwell) 0.5 #PLS/ac I 5 Totals 9.65 #PLS/ac 100 Application rate is for drilling the seed. If seed is to be broadcast, the application rate will be doubled. The seed mix for final reclamation as described above does not require fertilizer as recommended by the local NRCS office in Greeley, Colorado. The seeded areas will be covered with dead crop litter from sorghum or milo crop forage, or with straw mulch at a rate of 4,000 pounds per acre. If a significant invasion of noxious weeds occurs after seeding, the weeds will be mowed before they can go to seed. The areas will be mowed periodically for additional control as needed. Mechanical control will be used as a first priority. Chemical methods will only be used if no other alternative produces acceptable results. For temporary stockpiles, the reclamation plan includes re -vegetating with appropriate seed mixes to minimize erosion and establish more rapidly to stabilize the stockpiles. The grass mixture below was selected as recommended by the Greeley NRCS field office. The proposed seed mix is shown in the following table. Temporary Stockpile Seed Mix * Application Rate (#PLS/acre) % in mix Slender wheatgrass 3.4 #PLS/ac 44.5, Pubescent wheatgrass 4.2 #PLS/ac 55 Sand dropseed 0.03 #PLS/ac 0.5 Totals 7.63 #PLS/ac 100 * Application rate is for drilling the seed. If seed is to be broadcast, the application rate will be doubled. The seed mix for temporary stockpiles as described above does not require fertilizer as recommended by the local NRCS office in Greeley, Colorado. Water - General Requirement To minimize the effect on the prevailing hydrologic balance, J-2 Contracting Company will: a. Comply with all applicable Colorado water laws. b. Comply with all applicable Federal and State water quality laws and regulations. c. Comply with all Federal and State requirements for dredge and fill. d. Re -grade and backfill all sediment and siltation structures after mining is completed. e. Monitor groundwater levels adjacent to the site and mitigate any damage to adjacent wells that dewatering activities may have. (See Exhibit G) Groundwater — Specific Requirements The operation will not affect groundwater quality on or off the site. The operation will comply with State groundwater quality standards. AT Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application The mining and reclamation may affect the groundwater table surrounding the mine site. The proposed mitigation efforts to minimize these impacts are recharge ponds or ditches in necessary areas to maintain groundwater levels during the mining, and a perimeter drain if needed to convey groundwater around the lined reservoir after the pit side liner is installed. J-2 Contracting Company proposes that they monitor groundwater levels through both interior (within phases of the mining) and exterior (outside the slurry wall lining) monitoring wells that they have installed, or have access to before, during, and after the mining and reclamation is complete so that impacts to the groundwater table, from this mining operation, can be identified and addressed. It is the intent of J-2 Contracting Company to operate responsibly and to mitigate any damage to wells that is directly attributable to the mining and reclamation of this site. Reclamation - Approximate Time Table The maximum proposed rate of production for the mine is 750,000 tons per year. The total time frame to mine all phases is approximately 30 years. The following table shows the approximate time frame to finish each phase of mining: Mine Phase and Acreage Time Frame to Complete and Reclaim Phase Phase 1 — 24.36 acres 4 years Phase 2 — 19.94 acres 3 years 6 months Phase 3 - 55.69 acres 10 years Phase 4 - 44.33 acres 8 years 5 months Phase 5 — 45.28 acres 7 years and 4 months The assumed annual production rate is 750,000 tons for processed material leaving the mine each year. The size and area of reclamation varies for each phase but generally consists of the outside mining slope being reclaimed at a 3H:1V and 3H:1V slope with the addition of overburden, topsoil, and revegetation. For more information on sequencing and size of the reclamation activities refer to Exhibit L financial warranty calculations. J&T Consulting, Inc. J-2 Contracting Company DPG Mining Site DRMS 112 Permit Application En J&T Consulting, Inc. 305 Denver Avenue, Suite D idI Fort Lupton, CO 80621 303-857-6222 Client -3— Z- 40,1117464-11ter ° Sheet No: Job No: /S iit Date: 8/4041 Project: T,Per By: :in" Technical Review Guidelines for Gravel Mining & Water Storage Activities 2.4.4 Grouted Boulders Grouted boulders may be used to stabilize the pitside slope of riverside berms against erosion from overtopping. The geometric configuration of the grouted boulders should conform to the requirements indicated on Figure 2.7 and the USDCM. For berms with a 4H:1V slope, the minimum boulder size shall be 36 inches. For berms with a 2.5H:1V pitside slope, the minimum boulder size shall be 48 inches. Boulders shall meet the specifications listed in the USDCM. 2.4.5 Side Channel Spillway Side channel spillways may be provided between the river and the pit to minimize the potential for failure of the riverside berms. The stabilized spillway allows water to pass between the river and the pit and vice versa. A spillway on the upstream end of the pit and one at the downstream end of the pit will be required unless the pit is small and the differential head between the two ends is 2 feet or less, in which case one spillway will be sufficient. Side channel spillways should prevent the buildup of differential heads greater than 2 feet between the river and water in the pit. Because of the nature of the hydraulic response of the spillways, the differential head cannot be completely eliminated. The objective is to minimize, to the extent possible, the differential head between water in the river and water in the pit when the riverside berms overtop. The elevation of the side -channel spillway crest shall be approximately 1 foot above the 2 -year flood elevation. When the riverside berm length of the gravel pit is less than 1,300 feet (i.e., assuming average slope of the river is 0.001 ft/ft), only one side channel spillway will be required, and it shall be located approximately in the midpoint of the berm. If the length of the berm is greater than 1,300 feet or the differential head between the two ends of the berm is no more than 2 feet, two spillways will be required and will be located along the berm approximately one -fifth of the berm length from the upstream and downstream ends of the berm. When the length of the berm is less than 1,300 feet and the crest of the berm is no higher than one foot above the 2 -year flow elevation, the spillway bottom length shall conform to the following geometric relationship: In which Ls Ls or Ls = 4/12,000 = 100 feet, whichever is greater. length of the side channel spillway Ap = area of pit measured in square feet at the high water line January 2013 Urban Drainage and Flood Control District Page 17 Technical Review Guidelines for Gravel Mining & Water Storage Activities When the length of the riverside berm is greater than 1,300 feet, two spillways shall be constructed and the bottom length of each spillway shall conform to the following relationship: In which: Ap or = 0.6 Ap/12,000 = 100 feet, whichever is greater. = length of the side channel spillway = area of pit measured in square feet at the high water line Protection with the grouted boulder rundown on the pit side slope may be used to stabilize the spillways. Construction of this type of spillway stabilization must conform to the requirements indicated in Figure 2.8. The riverbank should be stabilized in accordance with the requirements of Section 2.3 Riverbank Protection. The crest of the spillway will be vegetated and shall have a 10 -foot -wide stabilized maintenance access trail along the entire crest of the spillway. The objective is to provide a smooth, flat driving surface with the ramps between top of berm and spillway bottom being no steeper than 10 percent. Access ramps, if sloped different than the side slopes of the spillway, shall not protrude into the bottom width of the spillway. The pitside rundown slope will be protected using grouted boulders. Grout used for the grouted boulder portion of this structure and installation practices shall be per the USDCM Hydraulic Structures chapter. Concrete may be used to protect spillways through riverside banks. The design of the concrete shall include consideration of all forces which may be encountered including, but not limited to, uplift forces and pore pressures generated by underlying materials. The riverbanks shall be protected in accordance with the requirements of Section 2.3 Riverbank Protection. Whenever concrete lining is used for the spillways, the geometric configuration of the concrete used to protect the spillway should conform to the dimensions shown on Figure 2.9. Soil cement is also an acceptable form of protection for side channel spillways. The riverbanks should be protected in accordance with the requirements of Section 2.3 Riverbank Protection. The crest of the riverside berm will be protected with a layer of soil riprap. The layer of soil cement on the spillway crest must be a minimum of 2 feet thick. The pitside slope is to be protected with soil cement placed in horizontal layers not exceeding 8 inches in thickness and between 8 and 12 feet wide. The soil cement should conform to the requirements of Section 2.4.3 Soil Cement. The geometric configuration of soil cement for stabilizing side channel spillways should conform to the dimensions shown on Figure 2.10. January 2013 Urban Drainage and Flood Control District Page 18 Technical Review Guidelines for Gravel Mining & Water Storage Activities face of lateral berms are to be stabilized and protected using the methods proposed in Section 2.4—Pitside Bank Protection. Riprap, soil riprap, soil cement and grouted boulders are all viable options for reinforcing both Type A and Type B lateral berms. These methodologies are to comply with the requirements of Section 2.4.1 Riprap, 2.4.2 Soil Riprap, 2.4.3 Soil Cement and 2.4.4 Grouted Boulders, respectively. The general geometric characteristics of lateral berm protection will conform to the individual details for the selected method of protection except that the protection needs to extend to bedrock or 3 feet below the pit floor. 2.5.4 Spillway for Type A Lateral Berms A spillway will only be allowed for Type A lateral berm protection. The existing or future arterial road crossing associated with Type B lateral berms renders the spillway approach infeasible. The required length of the spillway for Type A lateral berms along the South Platte River will be determined using the following equation: In which, H 2,500/H'5 = length of lateral berm spillway height between top of berm and spillway crest 2.6 Berm -Top Width Riverbank Berms This section specifies the minimum top width for berms located adjacent to the South Platte River and subject to these Guidelines. The top -width requirements are specified to protect the berms from rapid failure during 100 -year floods with overtopping lengths of time of two days duration. Such failure may result in the South Plane River flowing through the adjacent gravel pits causing the thalweg to drop, creating riverbed headcutting, resulting in loss of the river corridor and subsequently damaging property along the river. The berm -top width requirements consider long- term stability and safety along the South Platte River along with emergency equipment access and staging of emergency repair work, regional trails and the need to maintain a suitable Denver Metropolitan river corridor for multiple uses. Localized damages to the berms may result during large floods and may require periodic repair and maintenance. The top widths are broken into two classifications, one for an unprotected river bank and one for protected river banks. Unless otherwise indicated, the requirements of Sections 2.3 Riverbank Protection and 2.4 Pitside Bank Protection constitute adequate bank protection. January 2013 Urban Drainage and Flood Control District Page 23 Technical Review Guidelines for Gravel Mining & Water Storage Activities The top widths are expressed as the distance between the top of the riverbank slope to the top of the pitside slope. The area between these two tops of slopes should be no steeper than 3 percent and as a minimum have a stand of vegetation that resembles the native vegetation along the site with reasonable closeness. 2.6.1 Existing Unstable Alignment When the river is allowed to maintain an existing unstable alignment, and no bank protection is provided beyond the necessary revegetation, the minimum allowable top width of riverside berms will be 400 feet. This is the maximum setback requirement imposed on gravel mining operators. When the river is maintained in an existing unstable alignment and the riverbank is protected in accordance with the requirements of Section 2.3 Riverbank Protection, the minimum allowable top width for the riverside berm will be 250 feet. When the river is left in an existing unstable alignment and no riverbank protection is provided, but pitside slope protection is provided in accordance with the requirements of Section 2.4— Pitside Bank Protection, the allowable minimum top width will be 300 feet. When the river is maintained in its existing unstable alignment and protection is provided for both the riverbank and the pitside slope in accordance with Sections 2.3 Riverbank Protection and 2.4—Pitside Bank Protection, the allowable minimum top width of the riverside berm will be 150 feet. 2.6.2 Master Plan Alignment and Minimum Maintenance Alignment The Master Plan alignment and the minimum maintenance alignment are two cases in which the alignment of the river is predetermined and riverside bank stabilization is provided. The Master Plan alignment is mostly a modification of the existing alignment and is intended to reconcile the geometric requirements, property line constraints and constraints imposed by the existing river alignment. Bank stabilization for the Master Plan alignment and the minimum maintenance alignment will be in accordance with those methodologies presented in Section 2.3 Riverbank Protection. For the Master Plan alignment, the various acceptable types of bank stabilization are presented in the Master Plan drawings and differ slightly from the requirements specified in Section 2.1 Types of River Alignment and 2.2 Revegetation of Berms. The principal differentiation is in the required stabilization scheme. When the requirements of the Master Plan alignment or the minimum maintenance alignment are adhered to and, in addition to complying with the requirements for river bank stabilization, the pitside slope of riverside berms are stabilized in accordance with Section 2.4—Pitside Bank January 2013 Urban Drainage and Flood Control District Page 24 Technical Review Guidelines for Gravel Mining & Water Storage Activities Table 2.1 Riverbank Berm -Top Width Area Stabilized Alignment None Riverbank Only 2.1.1 Existing unstable 2.1.1 Existing unstable 2.1.2 Master Plan 2.1.3 Minimum maintenance Pitside Bank Only 2.1.1 Existing unstable Riverbank and Pitside Bank 2.1.1 Existing unstable 2.1.2 Master Plan Type of Stabilization None 2.3 Riverbank Protection 2.3.1—Riprap 2.3.2 —Soil Riprap 2.3.3 Jetties (Groins) 2.3 Riverbank Protection 2.3.1—Riprap 2.3.2 —Soil Riprap 2.3.3 Jetties (Groins) 2.3 Riverbank Protection 2.3.1 Riprap 2.3.2 Soil Riprap 2.3.3 Jetties (Groins) 2.4 Pitside Bank Protection 2.4.1 Riprap 2.4.2 Soil Riprap 2.4.3 Soil Cement 2.4.4 Grouted Boulders 2.4.5 Side Channel Spillway 2.3 Riverbank Protection and 2.4 Pitside Bank Protection 2.3 —Riverbank Protection and 2.4 Pitside Bank Protection 2.1.3 Minimum maintenance 2.3 —Riverbank Protection and 2.4—Pitside Bank Protection Minimum Top Width (ft) 400 250 200 200 300 100 100 January 2013 Urban Drainage and Flood Control District Page 27 FILE CONTAINS OVERSIZED MAP PLEASE SEE ORIGINAL FILE EXHIBIT G Water Information Introduction The DPG Ming site is located in the north 1/2 of section 12, and the southwest 1/4 of northeast corner of section 11, township 5 north, range 65 west of the 6th p.m., and d the south 1/2 section of section 1, township 5 north, range 65 west of the 6th p:m., Weld County, Colorado. The proposed mining site is located approximately 2 miles north and 2 miles west of the Town of Kersey, and approximately 2 miles north of State Highway 34. The South Platte River is approximately 600 feet south of the site on the west side of the permit boundary and 200 feet south and east of the site on the east side of the permit boundary. The Cache La Poudre River is adjacent to the north side of the permit boundary. The Weld County Parkway is immediately adjacent to the west side of the permit boundary. The operation will consist of sand and gravel production and will impact the South Platte River and the Cache La Poudre River in the form of depletions due to evaporation and operational losses associated with mining. Mining of the DPG Mining site will last for approximately 30 years. Once reclamation is complete reservoirs will be created with a total surface area of Reservoir 1 being 44.17 acres, Reservoir 2 51.40 acres, Reservoir 3 41.60 acres, and Reservoir 4 42.63 acres. The depth to groundwater ranges from 3 to '10 feet within the permit boundary (measured in MW -1 through MW -9, See the attached piezometer measurements table). The site will be mined down to a depth of 67 to 102 feet thus exposing groundwater to the atmosphere. This exposed galong with operational of sand . and gravel groundwater, the losses associated with the extraction deposits, will impact the South Platte and Cache La Poudre alluvial aquifer. These impacts will cause river depletions that must be augmented. Groundwater will be exposed during the mining once the mining depths reach an elevation of approximately 4596. To enable dry mining at the DPG Mining site, there will be dewatering trenches around the various phases of the site. These dewatering trenches will change in length throughout mining. The maximum length will occur when one phase is completely mined, but before the reclamation has begun on any given phase. The maximum size of dewatering trench will be 2,300 feet long and 5 feet wide, or 0.26 acres of exposed surface area. This water will be collected in a series of settling ponds totaling 8.5 acres. After sediment has settled from the water it will be pumped into dewatering ditch, which traverses the site, and is discharged into the Cache La Poudre River. As mining progresses, the dewatering trenches and discharge settling pond will shift as various cells are reclaimed. The gravel pit will have a slurry wall liner being constructed as mining commences or prior to mining commencing in Phase 1. Water Requirements Water use at the DPG Mining site will include evaporation from exposed groundwater, dust control of haul roads and stockpiles, and water retained in material removed from the site. J&T Consulting, Inc. Journey Ventures, LLC Journey Ventures Pit DRMS 112 Permit Application Evaporative Loss Evaporative losses are dependent on the exposed water surface area, which may shift throughout the mining operation, but will not exceed the maximum. Exposed surface area at the DPG Mining site will include groundwater exposed in the dewatering trenches and discharge settling pond. The maximum exposed surface area at the site during mining is estimated at 0.38 acres. J-2 Contracting Company plans to keep the site dewatered throughout the life of the mine. Evaporation data was taken from NOAA Technical Report NWS 33, Evaporation Atlas for the 48 Contiguous United States. The annual gross evaporation was determined to be 45 inches for this location. Monthly evaporation percentages are established by guidelines set by the State Engineers Office. To determine precipitation, data from the National Weather Service for Greeley, CO (053553) (1967-2019) was used. The long-term average precipitation at the DPG Mining site is estimated at 14.20 inches. Effective precipitation is calculated as 70% of the total precipitation. The net evaporation is the difference between gross annual evaporation and effective precipitation. The resulting net evaporation is 2.92 feet. The maximum evaporative loss from the 8.77 acres is 25.61 ac -ft. Operational Loss The average annual production from the DPG Mining site is estimated at 750,000 tons. Using 4% moisture content, the total associated consumptive use for water retained in the material mined is 22.07 ac -ft. Dust control use is 10,000 gal/day, 6 days/week, 4 weeks/month for 10 months of the year. This equates to 7.4 ac -ft. Maximum annual operational loss is estimated to be 29.47 ac -ft for Phase 1. Consumptive Use The maximum annual consumptive use at this site during the mining operation is estimated to be 55.08 ac -ft for Phase 1. Replacement Water The replacement of consumptive uses at the site is will be accounted for in a substitute water supply plan (SWSP) approved by the State Engineer. The SWSP will be obtained prior to any mining activities occurring that expose groundwater. Surrounding Water Rights The attached Figure G-1 shows the permitted wells within 600 feet of the mining limits. The well information and locations were obtained from the Division of Water Resources online mapping well permit locator. This well and water rights information was cross checked with the State's CDSS. Between the sources, all permitted and decreed wells are included. Table G-1 below is a corresponding list of wells as numbered in Figure G-1. J&T Consulting, Inc. Journey Ventures, LLC Journey Ventures Pit DRMS 112 Permit Application Table G-1 - Permitted and Decreed Wells Within 600 Feet of Mining Limits Map ID Permit No Structure ID Well Name Owner Address City State Zip Code 1 102669-A W C Mathews 3791E 18th Street Greeley CO 80631 2 118187-A Weld County P.O. Box 758 Greeley CO 80631 3 76222-F Weld County P.O. Box 758 Greeley CO 80631 At the time of SWSP application/approval, a new gravel pit well permit will be applied for/obtained to include the evaporative and operational losses from the property. If the proposed use of groundwater at the DPG Mining site results in material injury to surrounding wells, J-2 Contracting Company will ensure that all necessary measures are taken to address the issues. Water Quality An NPDES permit will be obtained from the Water Quality Control Division at the Colorado Department of Public Health & Environment for the DPG Mining site prior to discharging any groundwater that is dewatered from the site. This permit will be kept current and amended as necessary to ensure that any water discharged from the site will meet the permitted water quality standards. Impacts to Groundwater/Hydrologic Balance J-2 Contracting Company will monitor the groundwater levels surrounding- the site and provide. groundwater recharge if necessary via perimeter ditches/ponds. J-2 Contracting Company will construct these- ditches/ponds in the locations where direct discharge to an existing adjacent irrigation lateral is not available to ensure that stabilized groundwater levels are maintained. They will discharge dewatering flows into existing adjacent irrigation laterals where possible to limit the disturbance to the surrounding land. Slurry wall liners are proposed around the individual phases and will likely be installed either shortly after mining has begun or prior to mining starting. The only phase that mining may start prior to the slurry wall installation being completed is Phase 1. To summarize the mitigation process, as each phase of mining/dewatering occurs it will draw down the surrounding groundwater level to some extent. J-2 Contracting Company will monitor the groundwater levels adjacent to mine as each phase progresses. If groundwater levels drop to a level that prevents an adjacent well from performing acceptably, according to that well's owner, J-2 Contracting Company will either implement a groundwater recharge ditch/pond near. the well in order to raise the groundwater level in the vicinity of the well and hence return it's operation to acceptable standards, or will negotiate an agreement with that well owner to replace the well or provide replacement water via other means until the mining and reclamation activities are concluded. Groundwater wells that are not owned by J-2 Contracting Company (Figure G-1) are potentially located within 600 feet of the mining limits. The exact physical location of these wells will be determined during the SWSP and well permit application processes. If wells are found to be within 600 feet of the mining limits, J-2 Contracting Company will either obtain a well waiver from the owner of the well, or provide an agreement with the well owner that J-2 Contracting J&T Consulting, Inc. Journey Ventures, LLC Journey Ventures Pit DRMS 112 Permit Application Company will mitigate and material damage to the well that is directly attributable to the mining and reclamation of the site. All other wells within 600 feet of the mining limits are either owned by J-2 Contracting Company, or are monitoring wells therefore groundwater impacts to these wells do not need to be addressed. See the attached Piezometer Location Map, and Piezometer Data Summary, which show the locations of monitoring wells around the perimeter of the site that J-2 Contracting Company has either installed or has access to, and the groundwater level data that has been collected for each well. J&'f Consulting, Inc. Journey Ventures, LLC Journey Ventures Pit DRMS 112 Permit Application EXHIBIT H Wildlife Information The project area was surveyed for general wildlife habitat by Ecological Resource Consultants (ERC). The Screening Report for Federal and State Listed Threatened and Endangered Species from ERC is attached which describes the wildlife habitat present on the site and the common species that may be found in the habitat area. ERC conducted this screening for federal and state threatened, endangered and species of concern for the approximately 265 -acre survey area. The following provides key items identified as part of the report: 1. Four primary vegetation communities exist within the survey area and are comprised of Cultivated Cropland Upland Grassland Ruderal Herbaceous vegetation, Western Cattail Marsh, and Western Great. Plains Riparian Woodland, Shrubland and Herbaceous vegetation (Corner et al. 2003). 2. Generally, there are features on the survey area and the surrounding area that provide general habitat for local songbirds, raptors, waterfowl, amphibians, reptiles, aquatic invertebrate and small to midsize mammals. However, the majority of the habitat on survey area (75%) is classified as Cultivated Cropland and Upland Grassland Ruderal. Herbaceous vegetation which is somewhat degraded from a wildlife perspective by historic and current land use practices. Within the survey area, the Western Great Plains Riparian Woodland, Shrubland, and Herbaceous and Western Cattail Marsh vegetation communities occupy a smaller percentage of the survey area (24%) but provides a variety of important wildlife values. 3. Based upon literature review and field evaluation of the Survey area, ERC has determined that some migratory birds likely utilize the Survey area. These birds are protected under the MBTA, and killing or possession of these birds is prohibited. Generally, the active nesting season for most migratory birds in this region of Colorado occurs between April 1 and August 31. Any future land use changes that may occur on Survey area that remove vegetation during the active nesting season should first ensure that active nests are not disturbed. 4. Raptor nest sites are further protected by the CPW. The CPW has established recommended buffer zones and seasonal activity restrictions for a variety of Colorado raptors. One active red-tailed hawk nest was observed during the field investigation and no CPW mapped buffer zones are located within the survey area. In accordance with CPW guidelines no new disturbance should occur within 1/3 -mile of the active red-tailed hawk nest between February 15 and June 15 or until the young have fledged. Once the nest becomes inactive surface occupancy may resume within the 1/3 -mile buffer and vegetation occupied by the inactive nest may be removed. According to the USFWS Region 6 Migratory Bird Conservation Actions for Projects to Reduce the Risk of Take during the Nesting Season, an active nest survey should be performed "no more than 7- 10 days prior to when work actually begins on the project site" to determine the presence and activity status of nests protected by the MBTA. If work for the project must begin prior to the nest becoming inactive within the 1/3 -mile buffer, further agency coordination would be required. 5. Federally listed threatened and endangered species and/or habitat protected under the ESA were evaluated for the survey area. The survey area is within the occurrence range of Preble's meadow jumping mouse (Zapus hudsonius preble►) (PMJM). The PMJM is J&T Consulting, Inc. Journey Ventures, LLC Journey Ventures Pit DRMS 112 Permit Application listed as federally threatened under the ESA. The well -developed Western Great Plains Riparian Woodland, Shrubland and Herbaceous habitat along the Cache la Poudre River or South Platte River, within the -northern and eastern portion of the survey area are considered potentially suitable habitat for this species. No PMJM individuals were observed on or surrounding the survey area. The majority of the survey area (south, east, and west) is comprised of cultivated cropland (mowed)/ruderal herbaceous vegetation thus does not provide habitat `suitable for this species. The sections of suitable habitat are not continuous throughout the survey area with sections of the river banks too incised to support the structural habitat layers associated with PMJM habitat. The project proposes that a 100 to 140 -foot -buffer be maintained between the Cache la Poudre River and the boundary of the impact area which does preserve much of the potential PMJM habitat. No PMJM populations are known to occur within the area. The. nearest known population is approximately 10 miles southwest of the survey area along the South Platte River near the town of Milliken, Colorado. Activities associated with the project may result in loss of potential PMJM habitat. The proposed project and any future land use changes may affect potential habitat of this species however is not likely to adversely affect this species. The proposed project and any future land use changes may affect, not likely to adversely affect this species. 6. Any future project which may be water related or determined to be a water depletion to the South Platte River Basin may potentially be considered an adverse effect to water depletion species. The survey area does not contain the specific habitat characteristics necessary to support the species affected by depletions to the South Platte River. The species do not occur within the survey area therefore the proposed project and any future land use change will not directly adversely affect the continued existence or available habitat of the species. It is assumed herein that proper augmentation plans are in place and the project will not result in a water depletion and therefore not be considered an adverse effect to these species. Furthermore, it is assumed that no federal nexus would be required and therefore, South Platte River Basin depletion species are not concerned. Based on these assumptions and our current understanding of the project, no adverse effect is likely to occur to these species. 7. Upon review of species identified as State endangered or threatened, protected by the CPW under Colorado Statute Title 33, no species are potentially present within the survey area. No individuals or habitat for state listed threatened and endangered species would be impacted by any future land use changes. The Screening Report for Federal and State Listed Threatened and Endangered Species prepared by Ecological Resource Consultants, Inc. includes the following recommendations regarding migratory birds and raptor nest sites in the survey area: a. Any future land use changes that occur in the survey area that remove vegetation during the active nesting season for most migratory birds in this region of Colorado (April 1 - August 31) should first ensure that active nests are not disturbed. b. In accordance with CPW guidelines, no new disturbance should occur within 1/3 mile of the active red-tailed hawk nest between February 15 and June 15, or until the young have fledged. Once the nest becomes inactive, surface occupancy may resume within the 1/3 -mile buffer and vegetation occupied by the inactive nest may be removed. J&T Consulting, Inc. Journey Ventures, LLC Journey Ventures Pit DRMS 112 Permit Application c. According to the USFWS Region 6 Migratory Bird Conservation Actions for Projects to Reduce the Risk of Take during the Nesting Season, an active nest survey should be performed "no more than 7-10 days prior to when work actually begins on the project site" to determine the presence and activity status of nests protected by the MBTA. If work for the project must begin prior to the nest becoming inactive within the 1/3 -mile buffer, further agency coordination would be required. Attached is ERC's Screening Report for Federal and State Listed Threatened and Endangered Species. JUT Consulting, Inc. Journey Ventures, LLC Journey Ventures Pit DRMS 112 Permit Application EXHIBIT J Vegetation Information The project site was surveyed for both general vegetation and for the presence of possible wetland areas by Ecological Resource Consultants (ERC). The site is currently agricultural crop and pasture land. ERC's wetland delineation report is attached which includes descriptions of the general vegetation found on the site and wetlands found in the area. Note that jurisdictional wetlands were found on the site. J-2 Contracting Company will not be mining in the areas of the existing irrigation ditches (Patterson/Delta Irrigation Ditch) or areas where there are jurisdictional wetlands. J&T Consulting, Inc. J-2 Contracting Company DPG Pit DRMS 112 Permit Application EXHIBIT L Reclamation Cost A phased and cumulative bonding approach is proposed for the DPG Mining site operation. The financial warranty required for each phase is the warranty required to completely reclaim that phase. The financial warranty required for each phase of mining includes a cost component for the slurry wall liner required to close the current mined area should project be stopped and the operator defaulted. Because the slurry wall liner required to close the current mined area for each phase of mining is replaced with a new slurry wall liner required to close the current mined area component as the next phase of mining occurs, the financial warranty required for this component for the previous phase its credited back in each phase's required financial warranty calculation. This accurately calculates the additional financial warranty required for any given phase of mining and for the current limit of disturbance as well as accounting for the financial warranty that has already been posted to ensure that the Division has sufficient cumulative financial warranty to complete the reclamation. Direct costs related to the construction of the reclamation components that have been included in the financial warranty calculations include: Scarifying disturbed ground surfaces, re -applying topsoil over disturbed areas, revegetating disturbed areas, dewatering the full pit, slurry wall liner construction, and contractor mobilization. The slurry wall liner construction costs have been broken down further to include costs for different depths to bedrock as provided from the DRMS on previous 112 applications. Overhead, profit, and project management costs were then calculated and added to the direct construction costs to arrive at the required financial warranty for each phase. As each new phase is started, the financial warranty for that phase will be posted with the Division. When a phase has been reclaimed, inspected, and accepted by the Division, the associated financial warranty for fiat phase can then be reduced/released to 20% of the financial warranty required for that phase. Please see the attached calculations for details of the costs and quantities used to determine the financial warranty required for each phase of mining. We have calculated the slurry wall costs for the bonding of Phase 1, however J-2 Contracting Company is proposing to have DPG Farms, LLC pledge their Patterson Ditch shares to the mine permit for use in augmenting for the groundwater depletions should the slurry wall not get installed for Phase 1. In addition to the shares an additional $150,000 is proposed to be bonded. for to cover the administration costs (water rights engineering and attorney fees) for changing the shares to augmentation uses from irrigation through the Division of Water Resources and Colorado Water Court. If this is acceptable DPG Farms, LLC will provide an affidavit for approval from the Division of Water Resources dedicating the Patterson Ditch shares to the mine. This combination of water shares and bonding will only be valid for Phase 1 of the mining. Additional Phases will require bonding for the slurry wall construction and water shares will be turned back over to DPG Farms, LLC once approval of the slurry wall for Phase 1 has been provided to the DRMS. JsT Consulting, Inc. J-2 Contracting Company DPG Pit DRMS 112 Permit Application The following table summarizes the financial warranty required for each phase, and the cumulative financial warranty that will be provided during any given phase. Reclamation Cost Summary Phase Additional Financial Warranty Required Cumulative Financial Warranty 1 $800,607 $800,607 2 $2,036,825 $2,837,432 3 $3,832,461 $6,669,893 4 $5,915,835 $12,585,728 5 $3,251,421 $15,837,150 J&T Consulting, Inc. J-2 Contracting Company DPG Pit DRMS 112 Permit Application EnJ&T Consulting, Inc. Reclamation Bond Quantities and Costs © 2019 J Consulting. Inc. J-2 Contracting Company DPG Pit 8/26/2019 18114 DPG Pit Rec Bond Calcs Summary of Unit Costs Direct costs Re -applying topsoil 12" thick Revegetating disturbed area Dewatering full pit Phase 1 Slurry Wall Cost (0-50 ft @ $3/8 - 51-70 ft @ $41ft - 71-95 ft @ $13/ft) Phase 2 Slurry Wall Cost (0-50 ft @ $3/ff - 51-70 ft @: $41ft - 71-95ft@ $13/ft) Phase 3 Slurry Wall Cost (0-50ft@$3/ft-51-70ft@$4//t-71-95ft@$13/8) Phase 4 Slurry Wall Cost (0-50 ft @ $3/ft - 51-70 ft @ $4/ft - 71-95 ft @ $13/ft) Phase 5 Slurry Wall Cost (0-50ft@$3/8-51-70ft@$418-71-95ft@$13/8) Scarifying Ground Mobilization Overhead and Profit Costs Liability insurance Performance bond Profit Project Management Engineering and bidding Management and administration $1,800.00 / acre $1,000.00 / acre $400.00 / million gallons $360.00 / linear foot $425.00 / linear foot $360.0O / linear foot $542.00 / linear foot $190.00 / linear foot $200 /acre $2,50O lump sum 1.55% of direct cost 1.05% of direct cost 10.00% of direct cost Total Overhead Cost 12.60% of direct cost 4.25% of direct cost 5.00% of direct cost Total Additional Cost 9.25% of direct cost EnJ&T Consulting, Inc. Reclamation Bond Quantities and Costs © 2019 AT Consulting, Inc. J-2 Contracting Company DPG Pit 8/26/2019 18114 DPG Pit Rec Bond Calcs Phase 1 - 24.6 acres (Mining Limits) Reclamation Operation Slurry Wall for Phase 1 Scarifying - Topsoil/OB Stockpile, Access Road, Plant Site Areas, Loadout Area, Scale, Settling Ponds Topsoil Placement - Topsoil/OB Stockpile, Access Road, Plant Site Areas, Loadout Area, Scale, Settling Ponds Revegetate - Topsoil/OB Stockpile, Access Road, Plant Site Areas, Loadout Area, Scale, Settling Ponds Removal of Soil from Sediment Ponds and Removal of Berms for Sediment Ponds Removal of foundations for Scale House and Scale Riprap Spillway Construction for Phase 1 Mobilization Quantity Unit Unit Cost Cost 4,259 If $ 360.00 $ 1,533,240 92.55 ac $ 200 $ 18,510 92.55 ac $ 1,800 $ 166,590 92.55 ac $ 1,000 $ 92,550 16,000 cy $ 2.00 $ 32,000 50 cy $ 200.00 $ 10,000 3,309 cy $ 54.00 $ 178,668 1.0 Is $ 2,500 $ 2,500 Remove Slurry Wall Cost from Bond because DPG Farms, LLC dedication of Patterson Ditch Shares Administration Costs DPG Farms, LLC dedication of Patterson Ditch Shares to Change to Augmentation Subtotal Direct Cost $ 2,034,058 1 Is $ (1,533,240) $ (1,533,240) 1 Is $ 150,000 $ 150,000 Total Direct Cost $ 650,818 Overhead and Profit Cost (12.60%) $ 82,003 Contract Cost $ 732,821 Project Management (9.25%) $ 67,786 Total Required Financial Warranty For Phase 1 $ 800,607 Phase 2 - 19.94 acres (Mining Limits) Reclamation Operation Slurry Wall for Phase 2 Scarifying - Disturbed Areas - Phase 2 Mining Limits and to Permit Boundary Topsoil Placement - Disturbed Areas - Phase 2 Mining Limits and to Permit Boundary Revegetate - Disturbed Areas - Phase 2 Mining Limits and to Permit Boundary Riprap Spillway Construction for Phase 2 Dewatering of Pit for Phase 2 Mobilization Quantity Unit Unit Cost Cost 3,021 24.08 24.08 24.08 3,116 322.00 1.0 If ac ac ac cy mg Is $ 2,500 $ 425.00 $ 200 $ 1,800 $ 1,000 $ 54.00 $ 400 $ 1,283,925 $ 4,816 $ 43,344 $ 24,080 $ 168,282 $ 128,800 $ 2,500 Total Direct Cost $ 1,655,747 Overhead and Profit Cost (12.60%) $ 208,624 Contract Cost $ 1,864,371 Project Management (9.25%) $ 172,454 Additional Financial Warranty Required For Phases 2 Cummulative Financial Warranty Required For Phase 1-2 Phase 3 - 55.69acres (Mining Limits) $ 2,036,825 $ 2,837,432 Reclamation Operation Slurry Wall for Phase 3 Scarifying - Disturbed Areas- Phase 3 Mining Limits outside stockpile processing area to permit boundary Topsoil Placement - Disturbed Areas - Phase 3 Mining Limits outside stockpile processing area to permit boundary Revegetate - Disturbed Areas - Phase 3 Mining Limits outside stockpile processing area to permit boundary Riprap Spillway Construction for Phase Dewatering of Pit for Phase 3 Mobilization Quantity Unit Unit Cost Cost 5,546 48.70 49.70 48.70 10,857 960.00 1.0 If ac ac ac cy mg Is $ 360.00 200 1,800 1,000 54.00 400 2,500 $ 1,996,560 $ 9,740 .. $ 87,880 $ . 48,700 $ 586,269 $ 384,000 $ 2,500 Total Direct Cost $ 3,115,429 Overhead and Profit Cost (12,60%) $ 392,544 Contract Cost $ 3,507,973 Project Management (9.25%) $ .324,488 Additional Financial Warranty Required For Phase 3 Cummulative Financial Warranty Required For Phase 1-3 $ 3,832,461 $ 6,669,893 J&T Consulting, Inc. Reclamation Bond Quantities and Costs © 2019 J&T Conaoltinz Inc. Phase 4.44.1 acres (Mining Limits) J-2 Contracting Company DPG Pit 8/26/2019 18114 DPG Pit Rep Bond Calcs Reclamation Operation Quantity Unit Unit Cost Cost Slurry Wall for Phase 4 Scarifying - Disturbed Areas - Phase 4 Mining Limits outside stockpile processing area to permit boundary Topsoil Placement - Disturbed Areas - Phase 4 Mining Limits outside stockpile processing area to permit boundary Revegetate - Disturbed Areas - Phase 4 Mining Limits outside stockpile processing area to permit boundary Riprap Spillway Construction for Phase 4 Dewatering of Pit for Phase 4 Mobilization 5,917 If 40.43 ac 40.43 ac 40.43 ac 21,389 cy 808.00 mg 1.0 Is 542.00 $ 3,207,014 200 $ 8,086 $ 1,800 $ 72,774 $' 1,000 $ 40,430 $ 54.00 $ 1,155,012 $ 400 $ 323,200 $ 2,500 $ 2,500 Total Direct Cost $ 4,809,016 Overhead and Profit Cost (12.60%) $ 605,936 Contract Cost $ 5,414,952 Project Management (9.25%) $ 500,883 Additional Financial Warranty Required For Phase 4 Cummulative Financial Warranty Required For Phase 1-4 Phase 5 • 45.4 acres (Mining Limits) $ 5,915,835 $12,585,728 Reclamation Operation Slurry Wall for Phase 9 Scarifying - Disturbed Areas - Phase 5 Mining Limits outside stockpile processing area to permit boundary Topsoil Placement - Disturbed Areas - Phase 5 Mining Limits outside stockpile processing area to permit boundary Revegetate - Disturbed Areas - Phase 5 Mining Limits outside stockpile processing area to permit boundary Riprap Spillway Construction for Phase 5 Dewatering of Pit for Phase 5 Mobilization Quantity Unit Unit Cost Cost 4,039 33.76 33.76 33.76 27,739 685.00 1.0 If $ 190.00 ac $ 200 ac $ : 1,800 ac $ 1,000 cy $ 54.00 mg $ 400 Is $ 2,500 $ 767,410 $ 6,752 $ 60,768 $ 33,760 $ 1,497,909 $ 274,000 $ 2,500 Total Direct Cost $ 2,643,099 Overhead and Profit Cost (12.60%) $ 333,030 Contract Cost $ 2,976,129 Project Management (9.25%) $ 275,292 Additional Financial Warranty Required For Phase 5 Cummulative Financial Warranty Required For Phase 1-5 $ 3,251,421 $15,837,150 FILE CONTAINS OVERSIZED MAP PLEASE SEE ORIGINAL FILE EXHIBIT M Other Permits and Licenses J-2 Contracting Company will apply for and obtain the following permits and/or notices prior to commencement of any mining or mining -related activities that would require the permit or notice to be obtained at the DPG Mining site: Colorado Office of the State Engineer • Well Permit (Prior to exposing groundwater) ■ Substitute Water Supply PlaN (Prior to exposing groundwater) • Leak Test Approval for Slurry Wall Liner(s) (after construction of slurry wall(s)) Colorado Department of Public Heath and Environment • Air Pollution Emission Notice ■ Colorado Discharge Permit System Weld County ■ Use By Special Review Permit J&T Consulting, Inc. J-2 Contracting Company DPG Pit DRMS 112 Permit Application EXHIBIT S Permanent Man -Made Structures within 200 Ft of the Affected Land 1. Power Lines/Poles 2. Phone Lines/Poles 3. Oil and Gas Lines 4. Fences/Structures 5. Improved Roads 6. Irrigation Channels/Ditches/Pipelines J-2 Contracting Company believes that the mining operation, as proposed, will not adversely affect any of the permanent, man-made structures located within 200 ft of the affected area. However, the applicant still anticipates providing evidence of agreements for compensation with the appropriate structure owners or an engineering evaluation (see attached slope stability report) that adequately demonstrates that the proposed mining and reclamation operations will not result in damage to the structures. There are oil/gas wells and processing equipment located on the site or within 200 feet of the mining limits. J-2 Contracting Company is actively in negotiations with Noble Energy and Extraction Energy to develop a surface use agreement as required to address access, oil/gas. exploration, or oil/gas extraction activities as those two companies are the only oil/gas lessees that will be affected by the mining. The list of structure owners and structures are as follows (please refer to the mining plan maps for the specific locations): DPG Farms, LLC Homesite, buildings, shed, fence, irrigation ditch, recharge pond, pump house, hunting Blind Calven Goza Fence, building, house Catherine Roadifer Fence, concrete ditch Centurylink Telephone utility lines Delta Irrigation Company Irrigation ditches, diversion structures Extraction Oil & Gas Oil/Gas well abandoned Geisert 4-12 and 5-12, utility pipelines J&T Consulting, Inc. J-2 Contracting Company DPG Pit DRMS 112 Permit Application Mathews Family Fence Noble Energy Oil/Gas wells DPG F 1-15H5, DPG F 12-1H5, DPG 1-16H5, DPG F 1-23, Loustalet 1, DPG 12-28, DPG 12-18, DPG F 12-29, DPG 12-27, DPG F 12-17, Geisert 5-12, Yaklich- PM-F 12-3, Yaklich DPG 12-18, Yaklich F12-6, oil/gas utility pipeline, tank Noble Midstream Oil/gas utility pipelines, pipeline easements Weld County Roads, Right-of-ways, concrete ditch X-cel Energy Power lines and poles DCP Midstream Utility pipeline easements JaT Consulting, Inc. J-2 Contracting Company DPG Pit DRMS 112 Permit Application SLOPE STABILITY REPORT FOR THE DPG PIT WELD COUNTY, COLORADO MAY2019 REVISED AUGUST 2019 PREPARED FOR: J-2 Contracting Co. 105 Coronado Ct. Unit A-1'01 Fort Collins, CO 80525 Phone: 970-392-0694 Fax: 970-392-0695 PREPARED BY: JET Consulting, Inc. 305 DENVER AVENUE - SUITE D FORT LUPTON, CO 80621 PHONE: 303-857-6222 FAX: 303-857-6224 CERTIFICATION: I hereby certify this slope stability analysis for J-2 Contracting Company, the DPG Pit, located in Weld County, Colorado was prepared by me or under my direct supervision. James C. York Registered Professional Engineer State of Colorado No. 36846 J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page i Table of Contents I. Introduction II. Overview III. Geotechnical Data IV. Design Analysis and Criteria V. Methodology VI. Slope Stability Results VII. Conclusions and Recommendations Appendices Appendix A Slope Stability Case Location Map Appendix B Slope Stability Case Cross -Sections Appendix C Slope Stability Case Galena Output Appendix D Geotechnical Investigation Report Appendix E USGS Map, Oct. 2002 revision "Peak Acceleration (%g) with a 2% Probability of Exceedance in 50 yrs" inIll J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page ii INTRODUCTION J-2 Contracting Company proposes to mine the property located in the South half of the Southwest quarter of Section 1, South half of the Southeast quarter of Section 1, North half of Section 12, and East half of the Southeast quarter of Section 11, Township 5 North, Range 65 West, Sixth P.M. in Weld County, Colorado. The property is bounded by the South Platte River on the south and east, Weld County Parkway on the west, and Cache la Poudre River on the north. The proposed mining operation will extract gravel reserves from locations adjacent to man-made structures. The rules and regulations of the Division of Reclamation, Mining, and Safety (DRMS) require that any mining within a 200 foot setback of a man-made structure show thorough engineering analysis that the proposed mining will not cause damage. The accepted method of demonstrating this is through a slope stability analysis. This report contains an overview of the methodology used in the analysis of the mining slopes and their estimated affects on all man-made structures. Recommendations regarding acceptable setbacks from man-made structures have also been included. OVERVIEW The DRMS mining plan proposes that the property will be mined in 4 pits. The mining will occur at 3H:1 V slopes. Concurrent reclamation is planned such that the reclamation embankment will be constructed as the mining progresses. The reservoir will cover an estimated ,.172 surface acres when full. Actual surface area will depend on the final configuration of the reservoir after reclamation is complete. GEOTECHNICAL DATA Preliminary geotechnical investigations have been performed by Cesare, Inc. J&T Consulting, Inc. (JT) estimated soil strength parameters based on the information from the geotechnical investigation and other stability analyses that have been performed on gravel mining operations along the Front Range. Table 1, on the following page, represents a summary of the soil strength parameters that were used in this stability analysis. J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 1 Table 1 - Soil Properties Description Max dry density (pcf) Saturated Density (pcf) Cohesion (psf) Internal Friction Angle Overburden 110 131 150 22 Sand and Gravel 110 125 0 35 Clay 107 130 50 24 Weathered Bedrock 125 141 100 18 Stable Bedrock 125 141 200O 20 Slurry Wall 100 110 0 45 DESIGN ANALYSIS AND CRITERIA The proposed mining slopes were analyzed using Clover Technologies Galena Slope Stability. Analysis System, version 7.1. Galena was designed to analyze the slope stability of earth embankments subjected to several critical situations that may occur during the life of the embankment. For this project, eleven cases were identified as critical during the mining operation. Static and pseudo -static conditions were analyzed in each case. Pseudo -static peak acceleration factors (peak horizontal acceleration, or PHA) were taken from USGS information for the western United States. The 2% probability of exceedance in 50 years (the most conservative) was used. A peak acceleration factor of 0.10 x gravity was taken from this data. A conservative earthquake loading coefficient of 0.50 x PHA is often used for slope stability analyses (50% of PHA). We used an even more conservative approach and used 70% of the PHA for this area for our earthquake loading coefficient. Hence, 0.70 x 0.10 = 0.07. All mining side slopes will be 3H:1 V. Case 1 — Wetland West of Reservoir 1. The mining operation is adjacent to a wetland near the west property line of the site. The proposed setback for mining is 65 feet from the east boundary of the wetland. The mining depth was assumed to be 90 feet in this area based on bore log information in the geotechnical report. Case 2 - Cache La Poudre River. The mining operation is adjacent to the Cache Ia Poudre River on the north side of the mining site. The mining depth was assumed to be 80 feet in this area based on bore log information in the geotechnical report. The minimum mining setback was set 150 feet from the river bank. Case 3 Cache La Poudre River. The mining operation is adjacent to the Cache Ia Poudre River on the north side of the mining site. The mining depth was &T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 2 assumed to be 60 feet in this area based on bore log information in the geotechnical report. The minimum mining setback was set 150 feet from the river bank. Case 4 — Gas Line Easement. The mining operation is adjacent to a pipeline easement along the East of the mining site. The mining depth was assumed to be 85 feet in this area based on bore log information in the geotechnical report. The proposed mining setback was set 50 feet from the pipeline easement. Case 5 — Gas Line Easement. The mining operation is adjacent to a pipeline easement along the East side of the mining site. The mining depth was assumed to be 100 feet in this area based on bore log information in the geotechnical report. The proposed mining setback was set 50 feet from the pipeline easement. Case 6 — Weld County Parkway Right -of -Way. The mining operation is adjacent to the Weld County Parkway right-of-way to the west The mining depth was assumed to be 80 feet in this area based on bore log information in the geotechnical reports. The proposed mining setback was set 65 feet from the rig ht -of -way. Case 7 - Irrigation Ditch & Gas Line Easement. The mining operation is adjacent to an irrigation ditch and two pipeline easements along the East side of the pit. The mining depth was assumed to be 60 feet in this area based on bore log information in the geotechnical reports. The proposed mining setback was set 50 feet from the irrigation ditch. Case 8 — Irrigation Ditch & Gas Line Easement. The mining operation is adjacent to an irrigation ditch and pipeline easement along the South side of the pit. The mining depth was assumed to be 75 feet in this area based on bore log information in the geotechnical reports. The proposed mining setback was set 50 feet from the irrigation ditch. Case 9 — Power Line. The mining operation is adjacent to an overhead electric line along the South side of the pit. The mining depth was assumed to be 100 feet in this area based on bore log information in the geotechnical reports. The proposed mining setback was set 60 feet from the power line. Case 10 — Irrigation Ditch. The mining operation is adjacent to an irrigation ditch along the South side of the pit. The mining depth was assumed to be 100 feet in this area based on bore log information in the geotechnical reports. The proposed mining setback was set 60 feet from the ditch. Case 11 — Gas Line Easement. The mining operation is adjacent to a pipeline easement along the South side of the pit. The mining depth was assumed to be 90 feet in this area based on bore log information in the geotechnical reports. The proposed mining setback was set 60 feet from the pipeline easement. J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 3 The cross -sections located in Appendix B show the estimated phreatic surface associated with each case as well as the geometry used in the mining. METHODOLOGY The mining embankment configuration shown in the computer analysis represents the estimated conditions for this site. If mining conditions differ from the estimated conditions, the slope stability will need to be re-evaluated on a case by case basis. The Bishop Method was used in the computer analysis for determining safety factors. The procedure searches for circular shear failures and automatically searches for the lowest safety factor. 20,000 separate failure surfaces were analyzed for each case. The required minimum safety factors are based on the policy of the Mined Land Reclamation Board (MLRD) for Factors of Safety for Slope Stability/ Geotechnical Analyses. SLOPE STABILITY RESULTS The MLRB requires minimum safety factors of 1.50 for static condition analyses and 1.30 for pseudo -static (earthquake loading) condition analyses for embankments adjacent to critical structures. The calculated factors of safety are within the design criteria specified for this project and can be considered indicators of the mining slope performance under the various conditions. Theslopes were analyzed using full and empty reservoir conditions. The results of the static condition and pseudo -static condition slope stability analyses are shown in Table 2 and Table 3. J&T Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 4 Table 2 - Static Condition Slope Stability Analysis Results Description Calculated Factor Of Safety Required Minimum Factor Of Safety Case 1 — Wetland West of Reservoir 1 1.59 1.50 Case 1 - Wetland West of Reservoir 1 Full Reservoir 3.10 1.50 Case 2 — Cache La Poudre River 1.92 1.50 Case 2 — Cache La Poudre River Full Reservoir 3.55 1.50 Case 3 — Cache La Poudre River 2.89 1.50 Case 3 — Cache La Poudre River Full Reservoir 4.62 1.50 Case 4 — Gas Line. Easement 1.52 1.50 Case 4 — Gas Line Easement Full Reservoir 2.61 1.50 Case 5 — Gas Line Easement 1.60 1.50 Case 5 — Gas Line Easement Full Reservoir 2.96 1.50 Case 6 — Weld County Parkway Right -of -Way 1.56 1.50 Case .6- Weld County Parkway Right -of -Way Full Reservoir 2.91 1.50 Case 7 — Irrigation Ditch & Gas Line Easement 1.57 1.50 Case 7 — Irrigation Ditch & Gas Line Easement Full Reservoir 2.93 1.5.0 Case 8 — Irrigation Ditch & Gas Line Easement 1.52 1.50 Case 8 - Irrigation Ditch & Gas Line Easement Full Reservoir 2.58 150 Case 9 — Power Line 1.63 1.50 Case 9 — Power Line Full Reservoir 2.42 1.50 Case 10 - Irrigation Ditch 1.54 1.50 Case 10 — Irrigation Ditch Full Reservoir 3.01 1.50 Case 11 - Gas Line Easement 1.64 1.50 Case 11 - Gas Line Easement Full Reservoir 2.99 1.50 J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 5 Table 3 - Pseudo -Static Condition Slope Stability Analysis Results Description Calculated Factor Of Safety Required Minimum Factor Of Safety Case 1 — Wetland West of Reservoir 1 EQ 1.30 1.30 Case 1 - Wetland West of Reservoir 1 Full Reservoir EQ 2.11 1.30 Case 2 — Cache La Poudre River EQ 1.43 1.30 Case 2 — Cache La Poudre River Full Reservoir EQ 2.22 1.30 Case 3 — Cache La Poudre River EQ 2.07 1.30 Case 3 — Cache La Poudre River Full Reservoir EQ 2.84 1.30 Case 4 — Gas Line Easement EQ 1.30 1.30 Case 4 — Gas Line Easement Full Reservoir EQ 1.79 1.30 Case 5 — Gas Line Easement EQ 1.30 1.30 Case 5 — Gas Line Easement Full Reservoir EQ 2.04 1.30 Case 6 — Weld County Parkway Right -of -Way EQ 1.31 1.30 Case 6 - Weld County Parkway Right -of -Way Full Reservoir EQ 1.97 1.30 Case 7 — Irrigation Ditch & Gas Line Easement EQ 1.31 1.30 Case 7 - Irrigation Ditch & Gas Line Easement Full Reservoir EQ 1.98 1.30 Case 8 — Irrigation Ditch & Gas Line Easement EQ 1.31 1.30 Case 8 — Irrigation Ditch & Gas Line Easement Full Reservoir EQ 1.75 1.30 Case 9 — Power Line EQ 1.30 1.30 Case 9 — Power Line Full Reservoir EQ 1.78 1.30 Case 10 — Irrigation Ditch EQ 1.30 1.30 Case 10 - Irrigation Ditch Full Reservoir EQ 2.05 1.30 Case 11 — Gas Line Easement EQ 1.30 1.30 Case 11 - Gas Line Easement Full Reservoir EQ 2.03 1.30 JatT Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 6 CONCLUSIONS AND RECOMMENDATIONS Case 1 — At a setback of 65 feet, the resulting safety factor of 1.59 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.30 is equal to the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 3.10 under static loading and 2.11 under earthquake loads. The proposed setback of 65 feet from the wetland is satisfactory. Case 2 - At a setback of 150 feet, the resulting safety factor of 1.92 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.43 exceeds the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 3.55 under static loading and 2.22 under earthquake loads. The proposed setback of 150 feet from the river bank is satisfactory. Case 3 - At a setback of 150 feet, the resulting safety factor of 2.89 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 2.07 is above the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 4.62 under static loading and 2.84 under earthquake loads. The proposed setback of 150 feet from the river bank is satisfactory. Case 4 At a setback of 50 feet, the resulting safety factor of 1.52 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.30 is equal to the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 2.61 under static loading and 1.79 under earthquake loads. The proposed setback of 50 feet from the gas line easement is satisfactory. Case 5 At a setback of 50 feet, the resulting safety factor of 1.60 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.30 is equal to the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 2.96 under static loading and 2.04 under earthquake loads. The proposed setback of 50 feet from the gas line easement is satisfactory. Case 6 - At a setback of 60 feet, the resulting safety factor of 1.56 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.31 is above the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 2.91 under static loading and 1.97 under earthquake loads. The proposed setback of 65 feet from the right-of-way is satisfactory. Pa Consulting„ Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 7 Case 7 - At a setback of 50 feet, the resulting safety factor of 1.57 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.31 is above the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 2.93 under static loading and 1.98 under earthquake loads. The proposed setback of 50 feet from the irrigation ditch and gas line easement is satisfactory. Case 8 - At a setback of 50 feet, the resulting safety factor of 1.52 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.31 is above the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 2.58 under static loading and 1.75 under earthquake loads. The proposed setback of 50 feet from the irrigation ditch and gas line easement is satisfactory. Case 9 - At a setback of 60 feet, the resulting safety factor of 1.63 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.30 is equal to the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 2.42 under static loading and 1.78 under earthquake loads. The proposed setback of 60 feet from the power line is satisfactory. Case 10 - At a setback of 60 feet, the resulting safety factor of 1.54 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.30 is equal to the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 3.01 under static loading and 2.05 under earthquake loads. The proposed setback of 60 feet from the irrigation ditch is satisfactory. Case 11 - At a setback of 60 feet, the resulting safety factor of 1.64 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The resulting safety factor of 1.30 is queal to the MLRB minimum requirement of 1.30 for an embankment subject to earthquake loading. Using a normal water surface elevation in the reservoir provides greater safety factors, 2.99 under static loading and 2:03 under earthquake loads. The proposed setback of 60 feet from the gas line easement is satisfactory. ui J&T Consulting, Inc J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 8 The following recommendations for monitoring of slope stability should be followed: A visual inspection of the excavated slopes should be done on a weekly basis for the duration of mining. This inspection should consist of walking the existing ground and looking for any signs of stress cracks or other potential signs of slope failure. Some minor sloughing of slopes is expected on any mine site. The intent of this inspection is to locate potential major slope failures that could potentially extend back into a structure. A visual inspection should be done after a major precipitation event that has saturated the ground using the same procedures. A major precipitation event would be defined as a storm that produces an intensity level reached once in 50 years on the average. If a visual inspection detects signs of a potential slope failure, qualified personnel should be contacted to evaluate and recommend remediation work to stabilize the area. If no visible signs of slope failure are detected during mining, then the inspection period could be reduced to once per 6 months after mining completion, or after every major precipitation event. J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Page 9 APPENDIX A J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis P 118114 DPG Mining SitelDrawmgs1Stabihtyl,astability dwg, Mining Map (1), 8115/2019 3 2316 PM 200 100 0 st) 200 400 600 1 LEGEND: UTILITY POLE R7 GAS TANK - OAS VALVE 0 WELL PROPERTY LINE E)0511NO FENCE LINE EXISTING GAS UNE EXISTING EASEMENT GRAVELPROPOSROAD � =so m cm ® ED PERMIT BOUNAARY PROPOSED SLURRY WALL MINING PHASE UMIT JURISDICTIONAL WETLAND pa a O m�4 rI 3 m Q C.)11a'o s, z ml a ad Lo ta NM Slope Stability Case Locatlo Map J-2 Contracting Company M.2019.028 z 0 Er) S 0 U R C z Joky _ X8114 bele 080519 OrnnEy , , .r,CMSH 424,240,13r_. TPY E , B(JCP TA, JT iNm Scab Sheet OI 1 2 SCALE IN FEET P118114 DPG Mining Site\Drawings\Stabddy1JT•stabddy dwg, Mining Map (3), 8/15/2019 3 25 05 PM 4�g `oT /mot of": J1 f wad r i 4`Ca Y`M��le= `� i 6, 1.4 200 100 0 200 400 600 SCALE IN FEET LEGEND: UTILITY POLE 10 GAS TANK O GAS VALVE ® WELL PROPERTY LINE x x EXISTING FENCE UNE 0- - EXISTING GAS UNE — — EXISTING EASEMENT GRAVEL ROAD cay ® rsm mm ®j PROPOSED PERMIT BOUNDARY PROPOSED SLURRY WALL MINING PHASE UNIT JURISDICTIONAL WETLAND J-2 Contracting Company] Slope Stability Case LocaUo Map M-2019-028 V m S z 18114 Data Oa 0519 Drawl er CUSH Desigica By TPY cbeaook_JCP pin JT-Mining scam, Sheet Cl 2 APPENDIX B a�T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 300 250 200 150 100 50 0 -50 �.v E J co C C 65 ft Offset to Wetlands tismmismimmismaisat C C(3 a awns alma -r a - all - - W - -� SWISS. shamans 150 200 250 300 350 400 450 - - - - - a --an- - a - • ,••Af . - - - a a 0 50 GALENA Version 7.2 100 Licensed to: J & T Consulting ""finfsw. gal`at t ;:,�:Y ^° ndiff: 1 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 1 - Rapid Draw Down File: P:118114 DPG Mining SitelSlope StabilitylGalenalModels\DPG Case 1 RD.gmf 1.59 Edited: 29 Jul 2019 Processed: 29 Jul 2019 J*T Consulting. Inc. 300 250 200 150 100 50 0 -50 • - — - coyote a — - 65 ft Offset to Wetlands E J C) •C C_ lambda de w �. - --- - -.-- - r - w —. - — - — - -- - — • C Co — - — a — - — — — - — - - — a — - .ter • .011111 - 011EIM- - —. - — - — - — - -allaa • iMEM- w p - • w -S - .PIIS - — . alla - — - -1 . - 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 3.10 Project DPG Site Case 1 - Full Reservoir File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 1 Full.gmf Edited: 29 Jul 2019 Processed: 29 Jul 2019 Ja Consulting, Inc. 350 300 250 200 150 100 50 0 -50 volk •-.._ • - • — e E J C) C C 150 ft+Offset o River Bank $ C CO CO a) I- • — • — - — • .. — • — - — - .._ — - - • - 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 2 - Rapid Draw Down 150ft Setback File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 2 RD+150.gmf 1.92 Edited: 5 Aug 2019 Processed: 5 Aug 2019 LJAI Consulting. Inc. 350 300 250 200 150 100 50 0 -50 E J 0) C C_ 50 ft Offse a River Bank C co CO a) I- • M • V • S • a • e • a ■ - ■ • - • - f �a ■ • • i� • • v MMEIMIS al•li IMP la 1 Ma. all•M Oima OP ennui, lab • 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay 1111111S: -AVE .- Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 3.55 Project DPG Site Case 2 - Full Reservoir 150ft Setback File: P:118114 DPG Mining SitelSlope Stability\GalenalModels\DPG Case 2 Full+150.gmf Edited: 5 Aug 2019 Processed: 5 Aug 2019 1a i C.nsnlfing. Inc. 350 300 250 200 150 100 50 0 -50 -100 MIENS S - a� a -...1-..h}...... -. SOME. sag[+^a ci C frur 150 ft Offset to River Bank c GO 16 0 50 100 150 200 250 300 350 400 450 500 550 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.89 Project DPG Site Case 3 - Rapid Draw Down 150ft Setback File: P:118114 DPG Mining Site\Slope Stability\GalenalModels\DPG Case 3 RD+150.gmf Edited: 5 Aug 2019 Processed: 5 Aug 2019 it u jet"1 Con.��ltin , IFIC. 350 300 250 200 150 100 50 -50 -100 - OMMOMEM r ....eja. 150 ft Offset to River Bank a C co Q) L AV a - a - -as- - - - an - a Mamie- - - a. -_ - almaa. , -. 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Inc. 350 300 250 200 150 100 50 0 -50 I I fin �.v tc- 60 ft Offset to Easement E a C C_ I Gas Easement SW sr $*I s-F.VC_KC - w I 0 50 100 150 200 250 300 350 400 450 500 R,1 Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.96 Project DPG Site Case 5 - Full Reservoir File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 5 Full.gmf Edited: 30 Jul 2019 Processed: 30 Jul 2019 JaT Consulting, Inc. 350 300 250 200 150 100 50 0 -50 E 0) C CC_ 65 ft Offset to R.O.W. AMPS r 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock assesaa 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 1.56 Project DPG Site Case 6 - Rapid Draw Down File: P:\18114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 6 RD.gmf Edited: 30 Jul 2019 Processed: 30 Jul 2019 JET Consulting, Inc. 350 300 250 200 150 100 50 -50 - - .r�...•I - ,.•.... sailliaamaftwalmmaira a, .'Gala a • a . ri' s - S . • . n 1 --2..... J a C_ C_ 65 ft Offset to R.O.W. C!) 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Inc. 300 250 200 150 100 50 -50 50 ft Offset to Easement E a) N LU J— .. - - =MN, • - - - - • - • - - - - • - - - ,.lgeec5 .-,R•.a.0•-1c-e•S.,•.ltalele r fluwle•r._Srat AILIS SIWNfi:a1v- .►ONSII1e• AIMS:e 0 50 GALENA Version 7.2 100 150 200 250 300 350 400 450 500 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 7 - Rapid Draw Down File: P:118114 DPG Mining Site\Slope Stability\GalenalModels\DPG Case 7 RD.gmf 1.57 Edited: 24 Apr 2019 Processed 30 Jul 2019 JA I Consulting, kw. 300 250 200 150 100 50 0 -50 I 50 ft Offset to Easement a) E a) U) ca w t - a a r S •.� • a - C 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay rtaalsoMEnrappentE Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.93 Project DPG Site Case 7 - Full Reservoir File: P.118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 7 Full.gmf Edited: 24 Apr 2019 Processed: 30 Jul 2019 .1K1 ('engulfing. Inc. �1 300 250 200 150 100 50 0 -50 r .✓ r .� �i. •. M' • N Mi.- M wnw. 4aG ,/.�4. M .I..S M r. 50 ft Offset to Easement 7.4 'C 4101000. w. PO s.►1900. E N Af LU 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 8 - Rapid Draw Down File: P:118114 DPG Mining Site\Slope Stability\GalenalModels\DPG Case 8 RD.gmf 1.52 Edited: 30 Jul 2019 Processed: 30 Jul 2019 .ix l Censttlting, Inc. 300 250 200 150 100 50 -50 50 ft Offset to Easement sientimignait Q) C_ C ca C a> ca T U) V / W - — - • • S 'liana 01. agelf.caa a Saimaa a ea dal ilalan• aft. aaaara w-. - .— - a SO al se laaaaa earal rt 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.58 Project DPG Site Case 8 - Full Reservoir File: P:118114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 8 Full.gmf Edited: 24 Apr 2019 Processed: 30 Jul 2019 L.Jac 1 (installing, Inc. 300 250 200 150 100 50 0 -50 1 • w -..T ^. S M - • . yi SD - - - - — - E C) CO 60 ft Offset to Easement verhead Power - — . — - — - —. --- --— - - - - { T TY1.�. - .�—r : ! .T.1.�—. V I..�-�. AI. 1.111-1- • Twos. a •1 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall czaza, rata 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 9 - Rapid Draw Down File: P:118114 DPG Mining SitelSlope Stability\Galena\Models\DPG Case 9 RD.gmf 1.63 Edited: 30 Jul 2019 Processed: 30 Jul 2019 iti Consulting, Inc. 300 250 200 150 100 50 0 -50 man I I s or a or ea - — - • — aaSa roma E _J C) C C 60 ft Offset to Easement Cl) Overhead Power -- a. SE a dIell --• -- ...._-ws a..,_ -_p - S• ea • -.- - - a SPEWS _ S • me *WS 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.42 Project DPG Site Case 9 - Full Reservoir File: P:118114 DPG Mining Site\Slope StabilitylGalena\Models\DPG Case 9 Full.gmf Edited: 30 Jul 2019 Processed: 30 Jul 2019 .It 1 Consulting Inc. 350 300 250 200 150 100 50 0 -50 60 ft Offset to Ditch L U 0 0 50 100 150 200 250 300 350 400 450 500 GA L.EVA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 4yV 6e iir -rrv.:@ 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 10 - Rapid Draw Down File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 10 RD.gmf 1.54 Edited: 31 Jul 2019 Processed: 31 Jul 2019 R- is is Consulting, Inc. id 350 300 250 200 150 100 50 0 i at So — .�i S Os -_=_ -- ea _. ea 60 ft Offset to Ditch • - • - -•�*• n - -- : — -� r • •� - W. Ma 4111, WWWWW^ alien •OP -50 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 3.01 Project DPG Site Case 10 - Full Reservoir File: P:118114 DPG Mining Site\Slope StabilitylGalena\Models\DPG Case 10 Full.gmf Edited; 31 Jul 2019 Processed: 31 Jul 2019 I' J,c I Consulting, Inc. 300 250 200 150 100 50 0 .E J a) C C 60 ft Offset to Easement Cl) Gas Easement 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 11 - Rapid Draw Down File: P:118114 DPG Mining SitelSlope StabilitylGalena\Models\DPG Case 11 RD.gmf 1.64 Edited: 31 Jul2019 Processed: 31 Jul 2019 J1( I Consulting, Inc. 300 250 200 150 100 50 0 I a - _ ISSIMPIS --"j--•.r.,.-- ., aloe a) C_ C 60 ft Offset to Easement Gas Easement amp. lumr OINia SINNED smells 4e Se al MMUS I* &gam. 1014 -J a was ♦ -40.01..0 - S... .-• ..-r.--ac. 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Material Keys 300 250 200 150 100 50 -50 ONO ♦� - -.-- - - -,- •- - - weena SES MINIMPIIIONEMMILMIEMISSIMMellba 65 ft Offset to Wetlands swalsnommos -a C co -1 a - - - - -- e GP - - - - - - - - - - - - 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 1 - Rapid Draw Down EQ File: P:118114 DPG Mining Site\Slope Stability\GalenalModels\DPG Case 1 RD EQ.gmf 1.30 Edited: 29 Jul 2019 Processed: 29 Jul 2019 sit 1tT Consulting. Inc. Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 300 250 200 150 100 50 0 -50 0.070 65 ft Offset to Wetlands --- . _la . r i MPS! /as IIIMESED - MISS IMINOMt • :1—. • .--O • --.. - a.-. - ..w— - !TS a SNP swami cv CD Ssoloso 0 MigaitStiOMMOCCKSEadVI 50 100 150 200 250 300 350 400 450 Version 7.2 Licensed to: J & T Consulting • 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 1 - Full Reservoir EQ File: P:118114 DPG Mining Site\Slope StabilitylGalena\Models\DPG Case 1 Full EQ.gmf 2.11 Edited: 30 Jul 2019 Processed: 30 Jul 2019 171; J+ T Catititiaz, Int. 350 300 250 200 150 100 50 0 -50 400 450 500 0 50 GALENA Version 7.2 100 150 200 250 300 350 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay masigernawomaei Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 2 - Rapid Draw Down EQ 150ft Setback File: P:118114 DPG Mining Site\Slope Stability\GalenalModels\DPG Case 2 RD+150 EQ.gmf 1A3 Edited: 5 Aug 2019 Processed: 5 Aug 2019 IL I .141 ( onstilting, Inc. 350 300 250 200 150 100 50 0 -50 0.070 in a • Q,6;;.wM/uv seas a .-mea J a C :C CO 150 ft Offset to River Bank C m a, 2 1140144.1 40404. ..I... . __.. 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock y.>�i�1�x.ac�Y.;Qtt a� "C;w f� a�ii ✓x ".v a//'Y �`Ef£ Y.. 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Inc. 350 300 250 200 150 100 50 -50 -100 0.070 a C Ct c(73 150 ft Offset to River Bank CCI 0 50 100 150 200 250 300 350 400 450 500 550 GALENA Version 7.2 Licensed to: J & T Consulting Project DPG Site Case 3 - Rapid Draw Down EQ 150ft Setback File: P:118114 DPG Mining Site\Slope Stability\GalenalModels\DPG Case 3 RD+150 EQ.gmf Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 'affe%`�1'I svag�s?�3+ 3Y..i .�� f'i:'d°`tnn � � '�� c s �.t£2x;.'gisesad. 5: Slurry Wall Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.07 Edited: 5 Aug 2019 Processed: 5 Aug 2019 Jac l Consulting, Inc. 350 300 250 200 150 100 50 0 -50 -100 0.070 150 ft Offset to River Bank co a co S CO 1 w w-.-. • • ,w_.�,. 0 50 100 150 200 250 300 350 400 450 500 550 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock aN, 5: Slurry Wall Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.84 Project DPG Site Case 3 - Full Reservoir EQ 150ft Setback File: P:118114 DPG Mining Site\Slope StabilitylGalena\Models\DPG Case 3 Full+150 EQ.gmf Edited' 5 Aug 2019 Processed: 5 Aug 2019 Li I JAI Consulting. Inc. 300 250 200 150 100 50 0 -50 0.070 ♦� • 50 ft Offset to Easement saminfismairmis 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 4 - Rapid Draw Down EQ File: P:\18114 DPG Mining SitelSlope StabilitylGalenalModels\DPG Case 4 RD EQ.gmf 1.30 Edited: 30 Jul 2019 Processed: 30 Jul 2019 Jac I Consulting. Inc. 350 300 250 200 150 100 50 -50 0.070 50 ft Offset to Easement _c.. eV a) E z CD �. 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Inc. 350 300 250 200 150 100 50 -50 0.070 60 ft Offset to Easement 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 5 - Rapid Draw Down EQ File: P:118114 DPG Mining Site\Slope StabilitylGalena\Models\DPG Case 5 RD EQ.gmf 1.30 Edited: 30 Jul 2019 Processed: 30 Jul 2019 ,jt I ( ontiutlin�, Inc. 350 300 250 200 150 100 50 0 -50 0.070 60$ Offset to Easement F a a_ C_ CD Gas Easement 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.04 Project DPG Site Case 5 - Full Reservoir EQ File: P:118114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 5 Full EQ.gmf Edited: 30 Jul 2019 Processed: 30 Jul 2019 Js 1 Consulting. Inc. 350 300 250 200 150 100 50 0 -50 1 0.070 a a - a IS 65 ft Offset to R.O.W. C • a. - -SMNIXOS - • AMPS a MP S air la 00 awirt 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Protect DPG Site Case 6 - Rapid Draw Down EQ File: P:118114 DPG Mining SitelSlope StabilitylGalena\Models\DPG Case 6 RD EQ.gmf 1.31 Edited: 30 Jul 2019 Processed. 30 Jul 2019 LJai' Consulting. Inc. 350 300 250 200 150 100 50 0 -50 0.070 1- 111 . E J a) C_ C_ • 65 ft Offset to R.O.W. a Sala se r• ease at, sr iMMMO .19 Wane MINS IS MI awn a - — - — - - — - — - — a — - — - 44b 40 S C!) -w - • s - S S 00 S 411. „az" raga 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock r tay o .. - "ana5.Lp°a'a`5'd%ry't5{ywra, 5: Slurry Wall 6: Clay aaa-ctrap, Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 6 - Full Reservoir EQ File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 6 Full EQ.gmf 1.97 Edited: 30 Jul 2019 Processed: 30 Jul 2019 SKI Consulting. Inc. 300 250 200 150 100 50 0 -50 0.070 - a I 50 ft Offset to Easement -_S_S IS SO Ift SP S CO w .-fin w wwves a - w.— _ --- A ww.e mkt Son sr 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 7 - Rapid Draw Down EQ File: P:118114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 7 RD EQ.gmf 1.31 Edited: 30 Jul 2019 Processed: 30 Jul 2019 a Consulting. Inc. V ,� 300 250 200 150 100 50 0 -50 1 ONO iNE.iti e'> vim:.Tom%.! :% ..a'.,.s. a Alteome L site 50 ft Offset to Easement co a a • ,_ a I •. - ,e, �. - G.1 .,... 0 MIME, al- w - 0 50 100 150 200 250 300 350 400 450 500 Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock »sA.�.swrZe4:Na soul'ar,....S/ falw.:x.':.Gie..,. x,,.i::.aaaM.d...a.cv: 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 7 - Full Reservoir EQ File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 7 Full EQ.gmf 1.98 Edited: 25 Apr 2019 Processed: 30 Jul 2019 I,j.t lConsulting. inc. 300 250 200 150 100 50 0 -50 0.070 famOSIP YAM 50 ft Offset to Easement E J a� C C_ C Q) E a) co (p W SS .--. YYYY- a SO F. ---f_ - SIPIn..a.. ni.wU •.I• wlWOOM•11•Le% .M.•.01,. - eons. . ...«,. ,. .. .-.�.... . ...4Y w 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 8 - Rapid Draw Down EQ File: P:118114 DPG Mining Site\Slope StabilitylGalena\Models\DPG Case 8 RD EQ.gmf 1.31 Edited: 30 Jul 2019 Processed: 30 Jul 2019 JAI Consulting, Inc. 300 250 200 150 100 50 -50 s 0.070 4- • s • a a . - a MP 50 ft Offset to Easement timieringamat c U) E U) N as W S • • • S • • a . — _ .__ - _ . MO -... _.,_ as se a w •SS• - - le' -... —•_.._. I. SOM.. 1 1 • -t 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 8 - Full Reservoir EQ File: P:118114 DPG Mining Site\Slope Stability\GalenalModels\DPG Case 8 Full EQ.gmf 1.75 Edited: 25 Apr 2019 Processed: 30 Jul 2019 big' JA: , ('nnsulling. int. 300 250 200 150 100 50 0 -50 a dle ma. -Y•1•••- — flop - ammab Ammonia I Or- - - — - — ---- - IMP - E - .J a _ C_ 60 ft Offset to Easement ommagamossas T L3 Overhead Power Main. ISMS a- MS ems ammo aa - -llanall. .lain! al rams mamma Waimea 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 9 - Rapid Draw Down EQ File: P:118114 DPG Mining SitelSlope StabilitylGalenalModels\DPG Case 9 RD EQ.gmf 1.30 Edited: 30 Jul 2019 Processed: 30 Jul 2019 JA 1 ( Inc. 300 250 200 150 100 50 0 -50 I ONO ignimma ME. am. la ullmtimmeo. Po& 0) C C S a ab ...��. .4 a o al, AO a .. ...... .. .. a. •.ter. d �-.. .. a sara 60 ft Offset to Easement I 03 OD 0 50 100 150 200 250 300 350 400 450 tetEstMeaciaMlaratiatM Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock F:•:.x-rcr'i"�'?!zD.�.`:os��'�f h'fi5:r�,'ia�C' `yea..o��Y3i�'i�''V`'�d��wli✓,�. c ✓ ata� .�vlii aCvviaaiv�a .u&J,:�?9:2�.� tc:aa:6:Lc. �G. rat�,...: 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 9 - Full Reservoir EQ File: P:118114 DPG Mining Site\Slope StabilitylGalena\Models\DPG Case 9 Full EQ.gmf 1.78 Edited: 30 Jul 2019 Processed: 30 Jul 2019 V UT Consulting. Inc. 350 300 250 200 150 100 50 -50 ONO 1 60 ft Offset to Ditch al 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project DPG Site Case 10 - Rapid Draw Down EQ File: P:\18114 DPG Mining SitelSlope StabilitylGalena\Models\DPG Case 10 RD EQ.gmf 1.30 Edited: 31 Jul 2019 Processed: 31 Jul2019 JaT Consulting. Inc. V 350 300 250 200 150 100 50 -50 0.070 air or SUSS Aar sr S. W SWIM, s. or IPOSIES 60 ft Offset to Ditch samsessiss orr relleopf 0 50 100 150 200 250 300 350 400 450 500 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.05 Project DPG Site Case 10 - Full Reservoir EQ File: P:\18114 DPG Mining SitelSlope StabilitylGalenalModels\DPG Case 10 Full EQ.gmf Edited: 31 Jul 2019 Processed: 31 Jul 2019 iJtT Consulting, Inc. 300 250 200 150 100 50 0 50 GALENA Version 7.2 0.070 . ar..._.._._ 100 150 200 I 250 300 SEIMin I 60 ft Offset to Easement Co Cl) 350 400 450 Licensed to: J & T Consulting Project DPG Site Case 11 - Rapid Draw Down EQ File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 11 RD EQ.gmf Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 1.30 Edited: 31 Jul 2019 Processed: 31 Jul 2019 Consulting, Inc. 300 250 200 150 100 50 MOW ONO > >Ames spa Jena „imam 1 . la an—__ - - s — A — _ w _.... _ .._._ _ esa- a wan MOMa ▪ !WNW. 60 ft Offset to Easement $3aVnay. e'"�3.. i. :' 'r €WaiViWKC"EF£ ilagMa ea CD E N cp - - la as maw amen amnia, a anal .w. • . __, _ a ..se. _ A,..,. SPIORIPPOMP J S _ . !_• 0 50 100 150 200 250 300 350 400 450 GALENA Version 7.2 Licensed to: J & T Consulting Material Keys 2: Sand and Gravel 3: Weathered Bedrock 4: Stable Bedrock ingil`dk'n,.3a�s.'1.�1n-ga�2>.ovu≥ 5: Slurry Wall 6: Clay Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: 2.03 Project DPG Site Case 11 - Full Reservoir File: P:118114 DPG Mining Site\Slope StabilitylGalenalModels\DPG Case 11 Full EQ.gmf Edited: 31 Jul2019 Processed: 31 Jul 2019 L' Jac I Consulting, Inc. APPENDIX C WI J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 1 RD.gmf Processed: 29 Jul 2019 16:16:35 DATA: Analysis 1 - Case 1 - Rapid Draw Down Material Properties (6 materials) Material: 1 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) Cohesion Phi - UnitWeight Ru 50.00 - 16.0 120.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (15 profiles) Profile: 1 (2. points) 0.00 190.00 Profile: 2 (2 points) 0.00 163.00 Profile: 3 (2 points) 0.00 160.00 Profile: 4 (2 points) 0.00 155.00 Profile: 5 (2 points) 0.00 137.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 392.00 190.00 Profile: 9 (2 points) 395.00 190.00 Profile: 10 (2 points) 395.00 163.00 Profile: 11 (2 points) 395.00 160.00 Profile: 12 (2 points) 395.00 155.00 Profile: 13 (2 points) 395.00 137.00 Profile: 14 (2 points) 395.00 100.00 Profile: 15 (2 points) 392.00 97.00 - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay Unit weight of water/medium above ground: 62.400 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 100.00 0.00 Failure Surface 100.00 100.00 2 --Sand and Gravel 190.00 6 - Clay 163.00 2 - Sand and Gravel 160.00 6 - .Clay 155.00 2 - Sand and Gravel 137.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 190.O0 2 - Sand and Gravel 190.00 6 - Clay 163.00 2 - Sand and Gravel 160.00 6 - Clay 155.00 2 - Sand and Gravel 137.00 3 Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 370.00 190.00 100.00 352.00 184.00 450.00 190.00 450.00 184.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.0D YL: 101.67 XR: 435.00 YR: 190.00 Centre: XC: 188.06 YC: 451.95 Radius: R: 360.00 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 10.00 20 RESULTS: Analysis 1 - Case 1 - Rapid Draw Down R 40.00 50 Bishop Simplified Method of Analysis Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.744 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.59 Results Summary — Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 435.00 190.00 188.06 451.95 360.00. 1.592 <-- Critical Surface 2 105.00 101.67 435.00 190.00 188.30 451.06 359.18 1.595 3 - 105.00 101.67 435.53 190.00 188.48 451.85 360.00 1.597 4 105.00 101.67 435.00 190.00 188.54 450.16 358.37 1.598 5 105.00 101.67 435.53 190.00 188.72 450.96 359.18 1.600 6 105.00 101.67 435.00 190.00 - 188.78 449.26 357.55 1.601 7 105.00 101.67 436.05 190.00 188.90 451.75 360.00 1.602 8 105.00 101.67 435.53 190.00 188.96 450.06 358.37 1.603 9 104.47 101.49 435.00 190.00 187.80 451.71 360.00 1.603 10 105.00 101.67 435.00 190.00 189.02 448.37 356.73 1.605 11 104.47 101.49 435.00 190.00 188.04 450.82 359.18 1.606 12 105.00 101.67 436.05 190.00 189.14 450.86 359.18 1.606 13 105.00 101.67 435.53 190.00 189.20 449.16 357.55 1.608 14 104.47 101.49' 435.53 190.00 188.22 451.61 360.00 1.608 15 104.47 101.49 435.00 190.00 188.28 449.92 358.37 1.610 16 105.00 101.67 435.00 190.00 189.26 447.47 355.92 1.610 17 105.00 101.67 436.58- 190.00 189.32 451.65 360.00 1.610 18 105.00 101.67 : 435.00 .190.00 189.50 446.57 355.10 1.611 19 105.00 101.67 436.05 190.00 189.38 449.96 358.37 1.611 20 105.00 101.67- 436.58 190.00 189.56 450.76 359.18 1.611 21 105.00 101.67 436.05 190.00 189.62 449.06 357.55 1.612. 22 104.47 101.49 435.53 190.00 188.46 450.72 359.18 1.612 23 105.00 101.67 435.53 190.00 189.68 447.37 355.92 1.612 24 105.00 101.67 435.53 190.00 189.44 448.26 356.73 1.612 25 105.00 101.67 435.00 190.00 189.74 445.67 354.29 1.614 26 104.47 101.49` 435.00 190.00 188.52 449.02 357.55 1.614 27 103.95 101.32 435.00 190.00 187.55 451.47 360.00 1.614 28 105.00 101.67. 437.11 190.00 189.74 451.55 360.00 1.614 29 105.00 101.67 436.58 190.00. 189.80 449.86 358.37 1.615 30 105.00 101.67 436.05 190.00 189.86 448.16 .356.73 1.615 31 104.47 101.49 436.05 190.00 188.64 451.51. 360.00.. 1.615 32 105.00 101.67 435.53 190.00 189.92 446.47 355.10 1.615 33 104.47 101.49 436.05 190.00 188.88 450.62 359.18 1.616 34 104.47 101.49 435.53 190.00 188.70 449.82 358.37 1.617 35 104.47 101.49 435.53 190.00 188.94 448.92 357.55 1.617 36 105.00 101.67 435.00 190.00 189.98 444.77 353.47 1.617 37 105.00 101.67. .437.11 .190.00 189.98 450.65 359.18. 1.618 38 105.00 101.67 436.58 190.00 190.04 448.96 357.55 1.618 39 105.00 101.67 436.05 190.00 190.10 447.26 355.92 1.618 40 105.00 101.67 435.53 190.00 190.16 445.57 354.29 1.618 41 104.47 101.49 435.00 -190.00 189.01 447.23 355.92 1.618 42 103.95 101.32 435.00 190.00 187.79 450.58 359.18 1.619 43 104.47 101.49 435.00 190.00 188.77 448.12 356.73. 1.619 44 104.47 101.49 436.58 190.00 189.06 451.41 360.00 1.619 45 104.47 101.49 436.05 190.00 189.12 449.72 358.37 1.619 46 105.00 101.67 435.00 190.00 190.71 442.06 351.02 1.620 47 104.47 101.49 435.53 190.00 189.18 448.02 356.73 1.620 48 105.00 101.67 435.00 190.00. 190.22. 443.87 352.65 1.620 49 105.00 101.67 435.00 190.00 190.46 442.97 351.84 1.620 50 105.00 101.67. 435.53 190.00 190.86 442.86 351.84 1.620 51 105.00 101.67 437.63 190.00 190.16 451.45 360.00 1.621 52 105.00 101.67 435.53 190.00 190.64 443.76 352.65 1.621 53 105.00 101.67 437.11 190.00 190.22 449.75 -358.37 1.621 54 105.00 101.67 436.58 190.00 190.28 448.06 356.73 1.621 55 103.95 101.32 435.53 190.00 187.97 451.37 360.00 1.621 56 105.00 101.67- 436.05 190.00 190.34 446.36 355.10 1.621 57 105.00 101.67 435.53 190.00 190.40 444.66 353.47 1.621 58 104.47 101.49 435.00 190.00 189.25 446.33 355.10 1.621 59 103.95 101.32 435.53 190.00 188.21 450.48 359.18 1.622 60 104.47 101.49 436.58 190.00 189.30 450.51 359.18 1.622 61 104.47 101.49 436.05 190.00 189.36 448.82 357.55 1.622 62 105.00 101.67 436.05 190.00 191.06 443.66 352.65 1.622 63 105.00 101.67 436.05 190.00 190.82 444.56 353.47 1.623 64. 103.95 101.32 435.00 190.00 188.03 449.68 358.37 1.623 65 104.47 101.49 435.53 190.00 189.43 447.12 355.92 1.623 66 105.00 101.67 436.05 190.00 190.58 445.46 354.29 1.623 67 .103.95 101.32 435.00 190.00 188.27 448.78 357.55 1.623 68 104.47 101.49 435.00 190.00 189.97 443.62 352.65 1.623 69 103.95 101.32 436.05 190.00 188.39 451.27 360.00 1.624 70 104.47 101.49 435.53 190.00 190.15 444.42 353.47 1.624 -71 104.47 101.49 435.00 190.00 189.73 444.52 353.47 1.624 72 105.00 101.67 437.63 190.00 190.40 450.55 359.18 1.624 73 105.00 101.67 437.11 190.00 190.45 448.86 357.55 1.624 74 105.00 101.67 436.58 190.00 190.52 447.16 355.92 1.624 75 104.47 101.49 435.53 190.00 189.91 445.32 354.29 1.624 76 104.47 101.49 435.00 190.00 189.49 445.43 354.29 1.624 77 103.95 101.32 435.53 190.00 188.45 449.58 358.37 1.625 78 105.00 101.67 436.58 190.00 191.00 445.36 354.29 1.625 79 104.47 101.49 435.53 190.00 189.67 446.22 355.10 1.625 80 104.47 101.49 437.11 190.00 189.48 451.31 360.00 1.625 81 104.47 101.49 436.58 190.00 189.54 449.62 358.37 1.625 82 104.47 101.49 436.05 190.00 189.60 447.92 356.73 1.625 83 105.00 101.67 436.58 190.00 190.76 446.26 355.10 1.625 84 104.47 101.49 - 436.05 190.00 190.32 445.22 354.29 1.626 85 105.00 101.67. 438.16 190.00 190.57. 451.35 360.00 1.626 86 104.47 101.49 436.05 190.00 190.08 446.12 355.10 1.626 87 103.95 101.32 435.00 190.00 188.51 447.88 356.73 1.626 88 104.47 101.49 436.05 190.00 189.84 447.02 355.92 1.627 89 103.95 101.32 436.05 190.00 188.63 450.37 359.18 1.627 90 105.00 101.67 - 435.00 190.00 190.95 441.16 350.20 1.627 91 105.00 101.67: 437.11 190.00 191.17. 446.15 355.10 1.627 92 103.95 101.32 435.00 190.00 189.24 445.18 354.29 1.627 93 105.00 101.67 437.63 190.00 190.63 449.65 358.37 1.627 94 105.00 101.67 437.11 190.00 190.69 447.96 356.73 1.627 95 103.42 101.14 - 435.00 190.00 187.30 451.23 360.00 1.627 96 105.00 101.67 437.63 190.00 191.35 446.95 355.92 1.627 97 105.00 101.67 437.11 190.00 190.93 447.06 355.92 1.627 98 103.95 101.32 435.53 190.00 189.41 445.98 355.10 1.628 99 103.95 101.32 435.53 190.00 188.69 448.68 357.55 1.628. Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 435.00 YR: 190.00 Centre: XC: 188.06 YC: 451.95. Radius: R: 360.00 Generated failure surface: (2.0 points) 105.00 101.67 123.33 97.82 141.84 94.93 160.47 93.01 179.18 92.06 197.91 92.09 216.62 93.09 235.24 95.06 253.74 98.00 272.07 101.89 290.16 106.74 307.98 112.51 325.47 119.21 342.59 126.81 359.30 135.29 375.54 144.62 391.27 154.79 406.45 165.76 421.04 177.51 435.00 190.00 Slice Geometry and Properties - Critical Failure Surface (circle. 1, 45 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion. Phi Weight Force Stress Factor 1 105.00 17.14 -11.8 7.94 8.12 2 0.00 35.0 2142.34 1092.74 283.40 1.13 2 112.94 74.13 -11.8 10.39 10.61 3 100.00 18.0 9447.30 4726.38 . 943.95 1.07 3 123.33 59.14 -8.9 5.26 5.32 3 100.00 '18.0 7610.76 3735.13 1481.55 1.05 4 128.59 93.74 -8.9 6.62 6.70 4 2000.00 20.0 12089.83 5919.94 2063.28 1.05 5 135.22 115.21 -8.9 6.62 6.70 4 2000.00 20.0 14883.03 7275.84 2493.09 1.05 6 141.84 196.08 -5.9 9.32 9.37 4 2000.00 20.0 25336.48 .._12300.05 2886.11 1.03 7 151.16 233.96 -5.9 9.32 . 9.37 4 2000.00 20.0 30214.60 14676.27 3416.22 1.03 8 160.47 270.71 -2.9 9.35 9.37 4 2000.00 20.0 34920.23 16914.14 3620.35 1.01 9 169.83 304.31 -2.9. 9.35 9.37 4 2000.00 20.0 39191.54 19013.62 4279.72 1.01 10 179.18 336.09 0.1 9.37 9.37 4 2000.00 20.0 43198.96. 20971.73 4610.01 1.00 11 188.55 365.20 0.1 9.37 9.37 4 2000.00 20.0 46837.05 22788.81 • 4998.40 1.00 12 197.91 271.34 3.1 6.54 6.55 4 2000.00 20.0 34727.41 16955.73 5207.65 0.99 13 204.46 283.33 3.1 6.54 6.55 4 2000.00 20.0 36189.02 17704.72 5429.68 0.99 14 211.00 252.75 -3.1 5.62 5.63 4 2000.00 20.0 32202.58 15794.36 5631.37 0.99 15 216.62 436.29 6.0 9.31 9.37 4 2000.00 20.0 55333.09 27376.43 5739.88 0.98 16 225.93 456.02 6.0 9.31 9..37 4 2000.00 20.0 57508.62 28614.82 5971.07 0.98 17 235.24 308.85 9.0 6.11 6.19 4 2000.00 20.0 38764.05 19513.82 6040.90 0.98 18 241.35 315.37 9.0 6.11 6.19 4 2000.00 20.0 39421.36 19925.43 6147.05 0.98 19 247.46 331.04 9.0 6.28 6.36 3 100.00 18.0 41217.25 20915.92 6449.44 0.98 20 253.74 506.90 12.0 9.42 9.63 3 100.00 18.0 62767.97 32337.41 6514.04 0.98 21 263.16 100.11 12.0 1.84 1.88 2 0.00 35.0 12351.54 6386.67 6439.66 0.93 22 265.00 388.91 12.0 7.07 7.22 2 0.00 35.0 47977.27 24810.24 6502.55 0.93 23 272.07 442.08 15.0 7.93 8.21 2 0.00 ' 35.0 54546.25 28557.12 6517.42 0.93 24 280.00 506.51 15.0 9.00 9.32 2 0.00 35.0 62436.06 32718.84 6576.54 0.93 25 289.00 537.89 17.6 9.49 9.96 2 0.00 35.0 66240.08 35214.14 6558.61 0.92 26 298.49 538.71 I8.0 9.49 9.98 2 0.00 35.0 66341.95 35338.62 6560.62 0.92 27 307.98 495.02 20.9 8.75 9.37 2 0.00 35.0 60959.66 33075.79 6473.96 0.92 28 316.73 491.24 20.9 8.75 9.37 2 0.00 35.0 60486.26 32822.75 6423.75 0.92 29 325.47 474.89 23.9 8.56 9.37 2 0.00 35.0 58462.29 32419.88 6279.19 -0.92 30 334.03 466.80 23.9 8.56 9.37 2 0.00 35.0 57450.61 31867.37 6170.68 0.92 31 342.59 500.73 26.9 9.41 10.55 2 0.00 35.0 61603.91 35040.40 5960.40 0.92 32 352.00 377.84 26.9 7.30 8.18 2 0.00 35.0 46464.28 25819.84 5781.26 0.92 33 359.30 151.23 29.9 2.98 3.43 2 0.00 35.0 18591.69 10257.56 5585.81 0.92 34 362.28 382.32 29.9 7.72 8.91 6 50.00 16.0 47065.12 24897.92 5766.79 1.05 35 370.00 260.03 29.9 5.54 :639 6 50.00 16.0 32089.96 1.6325.29 5475.81 1.05 36 375.54 336.94 32.9 7.87 9.37 6 50.00 16.0 41690.77 21527.14 4968.99 1.07 37 383.40 296.95 32.9 7.87 9.37 6 50.00 16.0 36892.06 18556.00 4389.46 1.07 38 391.27 126.35 35.9 3.73 4.60 5 0.00 45.0 13898.96 8004.28 3104.53 0.85 39 395.00 108.63 35.9 3.48 4.29 2 0.00 35.0 13527.08 6758.23 3333.39 0.94 40 398.48 118.30 35.9 4.15 5.12 6 50.00 16.0 14756.80 7190.74 3287.17 1.09 41 402.63 97.95 35.9 3.82 4.72 2 0.00 35.0 12244.01 5775.14 2725.18 0.94 42 406.45 155.39 38.8 7.30 9.37 2 0.00 35.0 19423.33 8941.61 2215.91 0.95 43 413.75 112.54 38.8 7.30 9.37 2 0.00 35.0 14067.36 5509.05 1577.88. 0.95 44 421.04 67.06 41.8 7.25 9.73 2 0.00 35.0 8382.20 1970.74 886.46 0.96 45 428.29 20.12 41.8 6.71 9.00 2 0.00 35.0 2514.77 0.00 269.11 0.96 X -S Area: 12782.15 Path Length: 355.90 X -S Weight: 1594467.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project:•DPG Site File: P:\18114•DPG Mining Site\Slope Stability\Galena\Models\DPG Case 1 Full.gmf Processed: 29 --Jul 2019 16:20:34 DATA: Analysis 1 - Case 1 —Full Reservoir Material Properties (6 materials) Material: 1 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2. (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4: (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion - Phi UnitWeight Ru 0.00 45.0. 110.00 Auto - Material: 6:)Mohr-Coulomb Isotropic) Cohesion Phi UnitWeight- Ru 150.00 22.0 131.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 0.00 Profile: 2 0.00 Profile: 3 0.00 Profile: 4 0.00 Profile: 5 0.00 Profile: 6 0.00 Profile: 7 0.00 Profile: 8 392.00 Profile: 9 395.00 Profile: 10 395.00 Profile: 11 395.00 Profile: 12 395..00 Profile: 13 395.00 Profile: 14 395.00 Profile: 15 392.00 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 points) 190.00 points) 163.00 points) 160.00 points) 155.00 points) 137.00 points) 100.00 points) 97.00 points) 190.00 Points) 190.00 points) 163.00 points) 160.00 points) 155.00 points) 137.00 points) 100.00 points) 97.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath': 392.00 Material beneath: 392.00 Material beneath: 392..00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 450..00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.0D Material beneath: 450.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 0.00 184.00 Failure Surface 100.00 2 -.Sand and Gravel 190.00 6 Clay 163.00 2 - Sand and Gravel 160.00 6 - Clay' 155.00 2 - Sand and Gravel 137.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 190.00 2 - Sand and Gravel 190.00 6 - Clay 163.00 2 - Sand and Gravel 160.00 6 —Clay 155.00 2 - Sand and Gravel 137.00 3 -Weathered Bedrock 100.-00 4 - Stable Bedrock 97.00 100.00 370.00 100.00 184.00 190.00 450.00 352.00 184.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00: YL: 101.67 XR: 435.00 YR: Centre XC: 187.32 YC: 454.69 Radius: R: Variable Restraints Parameter descriptor.: Range of variation: Trial positions within range: XL 10.00 20 XR 10.00 20 RESULTS: Analysis 1. — Case 1 - Full Reservoir 45.00 50 190.00 450.00 184.00 190.00 362.50 Bishop Simplified Method of Analysis — Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.352 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 3.10 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right - Y -Right X -Centre - Y -Centre Radius FoS 1 105.00 101.67 435.00 190.00 187.32 454.69 362.50 3.096 <-- Critical Surface 2 105.00 101.67 435.00 190.00 187.59 453.69 361.58 3.102 3 105.00 101.67 435.53 190.00 187.75 454.60 362.50 3.102 4 105.00 101.67 435.00 190.00 187.86 452.68 360.66 3.107 5 105.00 101.67 435.53 190.00 186.02 453.59 361.58 3.108 6 105.00 .101.67. 436.05 190.00 188.17 454.50 362.50 3.109 7 105.00 101.67 435.00 190.00 188.13 451.67 359.74 3.113 8 105.00 101.67 435.53 190.00 188.28 452.58 360.66 3.113 9 105.00. 101.67. 436.05 190.00 188.44 453.49 361.58 3.115 10 104.47 101.49 435.00 190.00 187.07 454.46 362.50 3.116 11 I05.00 101.67 436.58 190.00 188.59 454.40 362.50 3.118 12 105.00 101.67 435.00 190.00 188.40 450.67 358.83 3.118 13 105.00 101.67 435.53 190.00 188.55 451.57 359.74 3.119 14 105.00 101.67 436.05 190.00 188.70 452.48 360.66 3.121 15 104.47 101.49 435.00 190.00 187.34 453.45 361.58 3.121 16 104.47 101.49 435.53 190.00 187.49 454.36 362.50 3.122 17 105.00 101.67 436.58 190.00 186.86 453.39. 361.58 3.124 .. 18 _ 105.00 101.67 435.00 190.00 188.67 449.66 357.91 3.124 19 105.00 101.67 435.53 190.00 188.82 450.57 358.83 3.124 20 104.47 101.49 435.00 190.00 187.61 452.44 360.66 3.127 21 105.00 101.67 436.05 190.00 186.97 451.47 359.74 3.127 22 104.47 101.49 435.53 190.00 187.76 453.35 361.58 3.127 23 104.47 101.49 436.05 190.00 167.91 454.26 362.50 3.128 24 105.00 101.67 437.11 190.00 189.01 454.30 362.50 3.128 25 105.00 101.67. 435.00 190.00 188.94 448.65 356.99 3.130 26 105.00' 101.67 436.58 190.00 189.12 452.38 360.66 3.132 27 104.47 101.49 435.00 190.00 187.88 451.43 359.74 3.132 28 105.00 101.67 435.53 190.00 189.09 449.56 357.91 3.132 29 104.47 101.49 435.53 190.00 188.03 452.34 360.66 3.132 30 104.47 101.49 436.05 190.00 188.18 453.25 361.58 3.133 31 103.95 101.32 435.00 190.00 186.82 454.22 362.50 3.135 32 105.00 101.67 436.05 190.00 189.24 450.46 358.83 3.136 33 105.00 101.67 437.11 190.00 189.28 453.29 361.58 3.137 34 104.47 101.49 436.58 190.00 188.33 454.16 362.50 3.137 35 104.47 101.49 435.00 190.00 188.15 450.43 358.83 3.138 36 105.00 101.67 436.05 190.00 189.51 449.45 357.91 3.138 37 104.47 101.49 435.53 190.00_ 186.30 451.33 359.74 3.138 38 105.00 101.67 435.00 190.00 189.21 447.64 356.07 3.139 39 103.95 101.32 435.00 190.00 187.08 453.21 361.58 3.141 40 103.95 101.32 435.53 190.00 167.24 454.12 362.50 3.141 41 105.00 101.67 436.58 190.00 189.39 451.37 359.74 3.141 42 105.00 101.67 435.0D 190.00 189.49 446.62 355.15 3.141 43 105.00 101.67 435.53 190.00 189.63 447.53 356.07 3.141 44 105.00 101.67 435.53 190.00 189.36 446.54 356.99 3.141 45 105.00 101.67 438.16 190.00 189.85 454.10 362.50 3.141 46 105.00 101.67 436.58 190.00 189.66 450.36 358.83 3.141 47 104.47 101.49 436.05 190.00 188.45 452.24 360.66 3.141 48 105.00 101.67 437.63 190.00 189.43 454.20 362.50 3.142 49 105.00 101.67 437.63 190.00 189.69 453.19 361.58 3.143 50 105.00 101.67 436.05 190.00 189.78 446.44 356.99 3.143 51 105.00 101.67 437.11 190.00 189.81 451.27 359.74 3.145 52 104.47 101.49 435.00 190.00 186.42 449.42 357.91 3.145 53 103.95 101.32 435.00 190.00 187.35 452.20 360.66 3.146 54 105.00 101.67 437.11 190.00 189.54 452.28 360.66 3.146 55 103.95 101.32 435.53 190.00 187.51 453.11 361.58 3.146 56 104.47 101.49 436.58 190.00 188.60 453.15 361.58 3.146 57 105.00 101.67 435.00 190.00 189.76 445.61 354.23 3.146 58 105.00 101.67 435.53 190.00 189.90 446.52 355.15 3.147 59 103.95 101.32 436.05 190.00 187.66 454.02 362.50 3.147 60 105.00 101.67 436.58 190.00 189.93 449.35 357.91 3.147 61 104.47 101.49 435.53 190.00 188.57 450.32 358.83 3.147 62 105.00 101.67 438.16 190.00 190.11 453.09 361.58 3.147 63 105.00 101.67 437.63 190.00 189.96 452.18 360.66 3.148 64 105.00 101.67 436.05 190.00 190.05 447.43 356.07 3.149 65 104.47 101.49 436.05 190.00 .188.72 451.23 359.74 3.150 66 105.00 101.67 437.11 190.00 190.08 450.26 358.83 3.150 67 104.47 101.49 436.05 190.00 188.99 450.22 358.83 3.150 68 104.47 101.49 437.11 190.00 186.75 454.06 362.50 3.151 69 103.95 101.32 435.00 190.00 187.63 451.19 359.74 3.152 70 104.47 101.49 437.11 190.00 189.02 453.05 361.58 3.152 71 105.00 101.67 435.00 190.00 190.03 444.60 353.32 3.152 72 105.00 101.67 435.53 190.00 190.17 445.51 354.23 3.152 73 105.00 101.67 436.58 190.00 190.20 448.34 356.99 3.152 74 105.00 101.67 438.16 190.00 190.38 452.08 360.66 3.153 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 2 RD+150.gmf Processed: 05 Aug 2019 12:54:39 DATA: Analysis 1 - Case 2 —Rapid Draw Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 11aterial: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto. (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi. UnitWeight Ru 18.0 141.00 Auto: (Mohr -Coulomb Isotropic) Phi - UnitWeight: Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Down 150ft Setback - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 180.00 Profile: 2 (2 points) 0.00 166.00 Profile: 3 (2 points) 0.00 165.00 Profile: 4 (2 points) 0.00 138.00 Profile: 5 (2 points) 0.00 133.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) • 350.00 • 180.00 Profile: 9 (2 points) 353.00 180.00 Profile: 10 (2 points) 353.00 166.00 Profile: 11 (2 points) 353.00 165.00 Profile: 12 (2 points) 353.00 138.00 Profile: 13 (2 points) 353:00 133.00 Profile: 14 (2 points) 353.00 100.00 Profile: 15 (2 points) 350.00 97.00 Slope Surface (6 points) 0.00 100.00 525.00 180.00 Material beneath: 2 - Sand and Gravel 350.00 180.00 Material beneath: 6 - Clay 350.00 166.00 Material beneath: 2 - Sand and Gravel 350.00 165.00 Material beneath: _6 - Clay 350.00 138.00 Material beneath: 2 - Sand and Gravel 350.00 133.00 Material beneath: 3 - Weathered Bedrock 350.00 100.00 Material beneath: 4 - Stable Bedrock 350.00 97.00 Material beneath: 5 - Slurry Wall 353.00 180.OD Material beneath: 2 - Sand and Gravel 525.00 180.00 Material beneath: 6 - Clay 525.00 166.00 Material beneath: 2 - Sand and Gravel 525.00 165.00 Material beneath: 6 - Clay 525.00 138.00 Material beneath: 2 - Sand and Gravel 525.00 133.00 Material beneath: 3 - Weathered Bedrock 525.00 100.00 Material beneath: 4 - Stable Bedrock 525.00 97.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 100.00 100.00 100.00 100.00 325.00 180.00 307.00 174.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: Centre: XC: 188.70 YC: 620.06 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 25.00 20 R 50.00 50 475.00 180.00 525.00 174.00 180.00 525.00 500.00 170.00 RESULTS: Analysis 1 — Case 2 — Rapid Draw Down 150ft Setback Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.263 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.92 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.78 475.00 180.00 188.70 620.06 525.00 1.919 <-- Critical Surface 2 105.00 101.78 475.00 180.00 168.92 616.99 523.98 1.922 3 105.00 101.78 475.00 180.00 189.15 617.92 522.96 1.925 4 105.00 101.78 475.0.0 180.00 169.38 616.85 521.94 1.928 5 105.00 101.78 475.00 180.00 189.60 615.78 520.92 1.931 6 104.47 101.59 475.00 180.00 188.36 619.85 525.00 1.934 7 105.00 101.78 475.00 180.00 189.83 614.71 519.90 1.935 8 104.47 101.59 475.00 180.00 188.59 618.77 523.98 1.937 9 105.00 101.78 475.00 180.00 190.06 613.64 518.88 1.938 10 1.04.47 101.59 475.0.0 180.00 188.82 617.70 522.96 1.940 11 105.00 101.78 475.00 180.00 190.28 612.56 517.86 1.941 12 104.47 101.59 475.00 180.00 189.04 616.63 521.94 1.943 13 105.00 101.78 _. 475.00 180.00 190.51. 611.49 516.84 1.944 14 105.00 101.78 - 476.32 179.47 190.40 619.79 525.00 1.945 15 104.47 ` 101.59 475.00 180.00 189.27 615.56 520.92 . 1.946 16 105.00 101.76 475.00 180.00 190.74 610.42 515.82 1.947 17 105.00 101.78 476.32 179.47 190.62 618.71 523.98 1.948 18 104.47 101.59 475.00 180.00 189.50 614.49 519.90 1.949 19 103.95 101.40 475.00 180.00 188.03 619.63 525.00 1.949 . 20 105.00 101.78 475.00 180.00 190.96 609.35 514.80 1.950 21 105.00 101.78 476.32 179.47 190.84 61.7.64 522.96 1.951 22 103.95 101.40 475.00. 180.00 188.25 618.56 523.98 1-.952 23 104.47 101.59 475.00 180.00 189.72 613.42 .518.88 1.952. 24 105.00 101.78 475.00 180.00 191.19 608.27 513.78 1.953 25 103;95 101.40 475.00 180.00 188.48 617.49 522.96 1.955 26 104.47 101.59 475.00 180.00 169.95 612.34 517.86 1.955 27 105.00 101.78 475.00 180.00 191.42 607.20 512.76 1.956 28 103.95 101.40 475.00 180.00 188.71 616.41 521.94 1.958 29 104.47 101.59 475.00 180.00 190.18 611.27 516.84 1..958 30 105.00 101.78 476.32 179.47 191.07 616.57 521.94 1.959 31 104.47 101.59 476.32 179.47 190.06 619.57 525.00 1.960. 32 103.95 101.40 475.00 - 180.00 188.94 615.34 520.92 . 1.961 33 104.47 101.59 475.00 180.00 190.40 610.20 515.82 1.962 34 105.00 101.78 476.32 179.47 191.29 615.50 520.92 1.963 35 103.95 101.40 475.00 180.00 189.16 614.27 519.90 1.964 36 105.00 101.78 475.00 180.00 191.64 606.12 511.73 1.964 37 103.42 101.22 475.00 180.00 187.69 619.41 525.00 1.964 38 104.47 101.59 475.00 180.00 190.63 609.13 514.80 1.965 39 105.00 101.78 476.32 179.47 191.52 614.43 519.90 1.966 40 103.95 101.40 475.00 180.00 189.39 613.20 518.88 1.967 41 103.42 101.22 475.00 180.00 187.92 618.34 523.98 1.967 42 104.47 101.59 476.32 179.47 190.28 618.50 523.98 1.968 43 105.00 101.78 475.00 180.00 191.87 605.05 510.71 1.969 44 105.00 101.78 476.32 179.47 191.74 613.35 518.88- 1.970 45 103.42 101.22 475.00 180.00 188.15 617.27 522.96 1.970 46 103.95 101.40 475.00 180.00 189.62 612.13 517.86 1.970 47 104.47 101.59 476.32 179.47 190.51 617.42 522.96 1.971 48 103.42 101.22 475.00 180.00 188.37 616.20 521.94 1.973 49 105.00 101.78 476.32 179.47 191.97 612.28 517.86 1.973 50 104.47 101.59 475.00 180.00 190.86 606.05 513.78 1.973 51 103.95 101.40 475.00- 180.00 189.84 611.05 516.64 1.974 52 105.00 101.78 475.00 180.00 192.10 603.97 509.69 1.974 53 104.47 101.59 476.32 179.47 190.73 616.35 521.94 1.975 54 103.42 101.22 475.00 180.00 188.60 :615.12 520.92 1.976 55 104.47 101.59 476.32 179.47 190.96 615.28 520.92 1.978 56 105.00 101.78 476.32 179.47 192.19 611.21 516.84 1.978 57 104.47 101.59 475.00 180.00 191.09 606.98 512.76 1.979 58 102.89 101.03 475.00 180.00 187.36 619.19 525.00 1.979 59 103.42 101.22 475.00 180.00 188.83 614.05 519.90 1.979 60 105.00 101.78 477.63 178.95 192.09 619.50 525.00 1.980 61 105.00 101.78 475.00 180.00 192.33 602.90 508.67 1.980 62 105.00 101.78 475.00 160.00 192.55 601.82 507.65 1.980 63 103.95 101.40 476.32 179.47 189.72 619.35 525.00 1.980 64 102.89 101.03 475.00 190.00 187.59 618.12 523.98 1.982 65 104.47 101.59 476.32 179.47 191.18 614.21 519.90 1.983 66 105.00 101.78 477.63 178.95 192.31 -618.43 523.98 1.983 67 103.95 101.40 475.00 160.00 190.07 609.98 515.82 1.983 68 103.95 101.40 476.32 179.47 189.95 616.28 523.96 1.984 69 103.42 101.22 475.00, 180.00 189.06 612.98 518.68 1.984 70 105.00 101.78 476.32 179.47 192.42 610.13 515.82 1.984 71 104.47 101.59 475.00 180.00 191.31 605.90 511.73 1.984 72 105.00 101.78 475.00 180.00 192.78 600.75 506.63 1.984 73 104.47 101.59 475.00 180.00 191.54 604.83 510.71 1.985 74 102.89 101.03 475.00 180.00 187.81 617.05 522.96 1.985 75 105.00 101.78 475.00 180.00 193.46 597.52 503.57 1.986 76 105.00 101.78 475.00 180.00 193.24 598.60 504.59 1.986 77 105.00 101.78 475.00 180.00 193.01 599.67 505.61 1.987 78 103.95 101.40 476.32 179.47 190.17 617.21 522.96 1.988 79 104.47 101.59 476.32 179.47 191.41 613.13 518.88 1.988 80 104.47 101.59 475.00 180.00 191.77 603.75 509.69 1.989 81 105.00 101.78 477.63 176.95 192.53 617.36 522.96 1.989 82 103.95 101.40 475.00 180.00 190.30 608.91 514.80 1.989 83 105.00 101.78 476.32 179.47 192.87 607.98 513.78 1.989 84 105.00 101.78 476.32 179.47 192.64 609.06 514.80 1.989 85 102.89 101.03 475.00 180.00 188.04 615.98 521.94 1.989 86 104.47 101.59 475.00 180.00 192.45 600.53 506.63 1.990 87 104.47 101.59 475.00 180.00 192.22 601.60 507.65 1.991 88 104.47 101.59 475.00 180.00 191.99 602.68 508.67 1.991 89 103.95 101.40 475.00 180.00 190.75 606.76 512.76 1.993 90 105.00 101.78 476.32 179.47 193.09 606.91 512.76 1.993 91 103.95 101.40 476.32 179.47 190.40 616.13 521.94 1.993 92 103.42 101.22 475.00 180.00 189.28 611.91 517.86 1.994 93 104.47 101.59 476.32 179.47 191.63 612.06 517.86 1.994 94 104.47 101.59 476.32 179.47 191.86 610.99 516.84 1.994 95 105.00 101.78 477.63 178.95 192.76 616.29 521.94 1.994 96 103.95 101.40 475.00 180.00 190.53 607.83 513.78 1.994 97 103.95 101.40 475.00 180.00 191.44 603.53 509.69 1.994 98 103.95 101.40 475.00 180.00 191.21 604.61 510.71 1.995 99 102.37 100.84 475.00 180.00 187.03 618.97 525.00 1.995 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: 180.00 Centre: XC: 188.70 YC: 620.06 Radius: R: 525.00 Generated failure surface: (20 points) 105.00 101.78 125.16 98.92 145.41 96.85 165.73 95.57 186.09 95.07 206.45 95.36 226.78 96.45 247.05 98.32 267.24 100.97 287.31 104.41 307.23 108.62 326.97 113.60 346.50 119.34 365.80 125.84 384.83 133.08 403.57 141.05 421.98 149.74 440.04 159.14 457.72 169.23 475.00 180.00 Slice Geometry and Properties - Critical Failure. Surface (circle 1, 48 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Mat]. Cohesion Phi Weight Force Stress Factor 1 105.00 9.79 -8.1 6.28 6.34 2 0.00 35.0 1223.74 623.21 201.31 1.07 2 111.28 29.37 -8.1 6.28 6.34 2 0.00 35.0 3671.20 1861.97 602.73 1.07 3 117.55 61.87 -8.1 7.61 7.68 3 100.00 18.0 7799.62 3919.15 1047.96 1.03 4 125.16 114.40 -5.8 9.40 9.45 3 100.00 180 14534.28 7209.80 1569.63 1.02 5 134.56 154.83 -5.8 9.40 9.45 3 - 100.00 18.0 19732.11 9756.29 2128.94 1.02 6 143.95 228.32 -3.9 10.89 10.92 4 2000.00 20.0 29133.05 14345.73 2771.33 1.02 7 154.84 277.99 -3.6 10.89 10.91 4 2000.00 20.0 35461.75 17460.71 3350.37 1.01 8 165.73 302.67 -1.4 10.18 10.18 4 2000.00 20.0 38575.40 18978.85 3833.43 1.00 9 175.91 342.02 -1.4 10.18 10.18 • 4 2000.00 20.0 43534.53 21447.51 4323.08 1.00 10 186.09 246.69 0.8 6.72 6.72 4 2000.00 20.0 31360.92 15467.32 4653.21 1.00 11 192.81 265.84 0.8 6.82 6.82 4 2000.00 20.0 33710.68 16669.33 4934.74 1.00 12 199.63 281.69 0.8 6.82 6.82 4 2000.00 20.0 35599.02 17664.29 5212.21 1.00 13 206.45 447.51 3.0 10.17 10.18 4 2000.00 20.0 56394.27 28100.87 5477.94 0.99 14 216.61 478.75 3.0 10.17 10.18 4 2000.00 20.0 60211.13 30065.45 5852.80 0.99 15 226.78 296.66 5.3 6.00 6.03 4 2000.00 20.0 37247.69 18684.79 6072.48 0.99 16 232.78 365.00 5.3 7.14 7.17 3 100.00 18.0 45751.74 22990.62 6373.72 0.99 17 239.92 378.41 5.3 7.14 7.17 3 100.00 18.0 47352.61 23837.02 6597.27 0.99 18 247.05 349.97 7.5 6.40 6.45 3 100.00 18.0 43714.99 22142.87 6767.84 0.99 19 253.45 359.14 7.5 6.40 6.45 3 100.00 18.0 44775.58 22725.25 6932.69 0.99 20 259.85 425.98 7.5 7.39 7.45 2 0.00 35.0 53062.96 26957.08 7038.49 0.96 21 267.24 461.04 9.7 7.79 7.90 2 0.00 35.0 57434.84 29350.23 7180.25 0.95 22 275.03 472.22 9.7 7.79 7.90 2 0.00 35.0 58832.24 30065.39 7355.34 0.95 23 282.81 173.31 9.7 2.81 2.85 2 0.00 35.0 21586.44 11035.29 7472.15 0.95 24 285.62 104.38 9.7 1.68 1.71 2 0.00 35.0 12997.56 6646.74 7520.33 0.95 25 287.31 626.58 11.9 9.96 10.18 2 0.00 35.0 78023.67 40198.83 7576.83 0.95 26 297.27 640.88 11.9 9.96 10.18 2 0.00 35.0 79811.16 41123.09 7751.06 0.95 27 307.23 582.22 14.2 8.89 9.16 2 0.00 35.0 72511.10 36747.99 7810.21 0.94 28 316.11 590.38 14.2 8.89 9.16 2 0.00 35.0 73530.66 35466.11 7903.45 0.94 29 325.00 131.28 14.2 1.97 2.03 2 0.00 35.0 16350.47 7687.77 7920.33 0.94 30 326.97 634.51 16.4 9.77 10.18 2 0.00 35.0 79020.49 37457.15 7663.22 0.94 31 336.74 606.47 16.4 9.77 10.18 2 0.00 35.0 75515.22 35633.28 7321.74 0.94 32 346.50 210.04 18.6 3.50 3.69 2 0.00 35.0 26149.56 12447.55 7029.63 0.94 33 350.00 176.93 18.6 3.00 3.17 5 0.00 45.0 19462.25 10463.97 6012.51 0.90 34 353.00 367.33 18.6 6.40 6.75 2 0.00 35.0 45724.14 21656.78 6713.52 0.94 35 359.40 353.54 18.6 6.40 6.75 2 0.00 35.0 44000.65 20748.97 6458.98 0.94 36 365.80 493.11 20.8 9.42 10.07 2 0.00 35.0 61355.91 29149.19 6074.88 0.94 37 375.22 459.39 20.8 9.42 10.07 2 0.00 35.0 57140.78 26897.91 5654.53 0.94 38 384.63 523.95 23.0 11.77 12.79 6 50.00 16.0 65287.34 30731.99 5347.54 1.02 39 396.40 289.88 23.0 7.16 7.78 2 0.00 35.0 36198.65 16743.56 4664.34 0.94 40 403.57 338.60 25.3 9.21 10.18 2 0.00 35.0 42278.47 19552.81 4199.83 0.94 41 412.77 298.59 25.3 9.21 10.18 2 0.00 35.0 37277.53 16792.16 3696.59 0.94 42 421.98 252.06 27.5 9.03 10.18 2 0.00 35.0 31462.00 13919.21 3146.10 0.95 43 431.01 209.62 27.5 9.03 10.18 2 0.00 35.0 26157.09 10933.87 2605.62 0.95 44 440.04 184.18 29.7 10.27 11.83 2 0.00 35.0 22971.74 8805.22 1979.21 0.95 45 450.31 25.41 29.7 1.75 2.02 6 50.00 16.0 3171.37 1070.04 1695.72 1.06 46 452.06 70.09 29.7 5.66 6.52 2 0.00 35.0 8761.42 2596.22 1349.93 0.95 47 45772 64.17 31.9 7.65 9.02 2 0.00 35.0 8020.76 1342.02 881.46 0.96 48 465.37 28.88 31.9 9.63 11.34 2 D.00 35.0 3609.60 0.00 305.50 0.96 X -S Area: 14785.89 Path Length: 386.85 X -S Weight: 1847490.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 2 Full+150.gmf Processed: 05 Aug 2019 12:59:21 DATA: Analysis 1 - Case 2 - Full Reservoir 150ft Setback Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) Cohesion Phi - UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (15 profiles) Profile: 1 0.00 Profile: 2 0.00 Profile: 3 0.00 Profile: 4 0.00 Profile: 5 0.00 Profile: 6 0.00 Profile: 7 0.00 Profile: 8 350.00 Profile: 9 353.00 Profile: 10 353.00 Profile: 11 353.00 Profile: 12 353.00 Profile: 13 353.00 Profile: 14 353.00 Profile: 15 350.00 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 points) 180.00 points) 166.00 points) 165.00 points) 138.00 points) 133.00 points) 100.00 points) 97.00 points) 180.00 points) 180.00 points) 166.00 points) 165.00 points) 138.00 points) 133.00 points) 100.00 points) 97.00 - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 353.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Slope Surface (6 points) 0.00 100.00 525.00 180.00 Phreatic Surface (4 points) 174.00 0.00 Failure Surface 2 - Sand and Gravel 180.00 6 - Clay 166.00 2 — Sand and Gravel 165.00 6 - Clay 138.00 2 - Sand and Gravel 133.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 180.00 2 - Sand and Gravel 180.00 6 - Clay 166.00 2 - Sand and Gravel 165.00 6 - Clay 138.00 2 - Sand and Gravel 133.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 100.00 174.00 325.00 180.00 307.00 174.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: Centre: XC: 188.70, YC: 620.06 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 25.00 20 R 50.00 50 475.00 180.00 525.00 174.00 180.00 525.00 500.00 170.00 RESULTS: Analysis 1 - Case 2 - Full Reservoir 150ft Setback Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 4.174 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 3.55 Results Summary - Lowest. 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.78 475.00 180.00 188.70 620.06 525.00 3.545 <-- Critical Surface 2 105.00 101.78 475.00 180.00 188.92 618.99 523.98 3.551 3 105.00 101.78 475.00 180.00 189.15 617.92 522.96 3.557 4 105.00 101.78 475.0.0 180.00 189.38 616.85 .521.94 3.562 5 105.00 101.78 475.00 180.00 189.60 615.78 520.92 3.568 6 105.00 101.78 475.00 180.00 189.63 614.71 519.90 3.573 7 .104.47 101.59 475.0D 180.00 188.36 619.85 525.00 3.574 8 105.00 101.78 475.00 180.00 190.06 613.64 518.88 3.578 9 104.47 101.59 475.00 180.00 188.59 618.77 523.98 3.579 10 105.00 101.78 475.00 180.00 190.28 612.56 517.86 3.584 11 104.47 101.59 475.00 180.00 188.82 617.70 522.96 3.584 12 105.00 101.78 475.00 180.00 190.51 611.49 516.84 3.589 13 .104.47 101.59 475.00 180.00 189.04 616.63 521.94 3.589 14 - 105.00 - 101.78 476.32 179.47 190.40 619.79 525.00 3.590 15 1.05.00' 101.78 475.00 180.00 190.74 610.42 515.82 3.595 16 104.47 101.59 475.00 180.00 189.27 615.56 .520.92 3.595 17 105.00 101.78 476.32 179.47 190.62 618.71 523.98 3.595 18 104.47 101.59 475.00 180.00 189.50 614.49 519.90 3.600 19 105.00 101.78 475.00 180.00 190.96 609.35 514.80 3.600 20 - 105.00 101.78 476.32 179.47 190.84 617.64 522.96 3.601 21 103.95 101.40 475.0D 180.00 188.03 619.63 525.00 3.601 22 104.47 101.59 475.00 180.00 189.72 613.42 518.88 3.605 23 105.00 101.78 475.00 180.00 191.19 608.27 513.78 3.605 24 103.95 101.40 475.00 180.00 188.25 618.56 523.98 3.606 25 104.47 101.59 475.00 180.00 189.95 612.34 517.86 3.610 26 105.00 101.78 475.00 180.00 191.42 607.20 512.76 3.611 27 103.95 101.40 475.00 180.00 188.48 617.49 522.96 3.611 28 105.00 101.78 476.32 179.47 191.07 616.57 521.94 3.615 29 104.47 101.59 475.00 180.00 190.18 611.27 .516.84 3.616. 30 103.95 101.40 475.00 180.00 188.71 616.41 521.94 3.616 31 104.47 101.59 476.32 179.47 190.06 619.57 525.00 3.617 32 104.47 101.59 475.00 180.00 190.40 610.20 515.82 3.621 33 103.95 101.40 475.00 180.00 188.94 615.34 520.92 3.621 34 105.00 101.78 476.32 179.47 191.29 615.50 520.92 3.622 35 105.00 101.78 475.00 180.00 191.64 606.12 511.73 3.625 36 104.47 101.59 475.00 180.00 190.63 609.13 514.80 3.626 37 103.95 101.40 475.00 180.00 189.16 614.27 519.90 3.626 38 103.42 101.22 475.00 180.00 187.69 619.41 525.00 3.627 39 105.00 101.78 476.32 179.47 191.52 614.43 519.90 3.628 40 103.95 101.40 475.00 180.00 189.39 613.20 518.88 3.631 41 104.47 101.59 476.32 179.47 190.26 618.50 523.98 3.632 42 103.42 101.22 475.00 180.00 187.92 618.34 523.98 3.632 43 105.00 101.78 476.32 179.47 191.74 613.35 518.88 3.634 44 105.00 101.78 475.00 180.00 191.87 605.05 510.71 3.634 45 103.95 101.40 475.00 180.00 189.62 612.13 517.86 3.636 46 103.42 101.22 475.00 180.00 188.15 617.27 522.96 3.637 47 104.47 101.59 476.32 179.47 190.51 617.42 522.96 3.638 48 105.00 101.78 476.32 179.47 191.97 612.28 517.86 3.640 49 103.42 101.22 475.00 180.00 188.37 616.20 521.94 3.642 50 104.47 101.59 475.00 180.00 190.86 608.05 513.78 3.643 51 103.95 101.40 475.00 180.00 189.84 611.05 516.84 3.643 52 104.47 101.59 476.32 179.47 190.73 616.35 521.94 3.644 53 105.00 101.78 475.00 180.00 192.10 603.97 509.69 3.644 54 103.42 101.22 475.00 180.00 188.60 615.12 520.92 3.647 55 105.00 101.78 476.32 179.47 192.19 611.21 516.84 3.649 56 104.47 101.59 476.32 179.47 190.96 615.28 520.92 3.650 57 105.00 101.78 477.63 178.95 192.09 619.50 525.00 3.650 58 104.47 101.59 475.00 180.00 191.09 606.98 512.76 3.652 59 103.42 101.22 475.00 180.00 188.83 614.05 519.90 3.653 60 105.00 101.78 475.00 180.00 192.33 602.90 508.67 3.654 61 105.00 101.78 475.00 180.00 192.55 601.82 507.65 3.654 62 102.89 101.03 475.00 180.00 187.36 619.19 525.00 3.654 63 103.95 101.40 476.32 179.47 189.72 619.35 525.00 3.654 64 105.00 101.78 477.63 178.95 192.31 618.43 523.98 3.657 65 104.47 101.59 476.32 179.47 191.18 614.21 519.90 3.658 66 102.89 101.03 475.00 180.00 167.59 618.12 523.98 3.659 67 105.00 101.78 476.32 179.47 192.42 610.13 515.82 3.659 68 103.95 101.40 476.32 179.47 189.95 618.28 523.98 3.660 69 105.00 101.78 475.00 180.00 192.76 600.75 506.63 3.661 70 103.95 101.40 475.00 180.00 190.07 609.98 515.82 3.661 71 103.42 101.22 475.00 180.00 189.06 612.98 518.88 3.662 72 104.47 101.59 475.00 180.00 191.31. 605.90 511.73 3.662 73 104.47 101.59 475.00 180.00 191.54 604.83 510.71 3.662 74 105.00 101.78 475.00 180.00 193.46 597.52 503.57 3.664 75 102.89 101.03 475.00 180.00 187.81 617.05 522.96 3.664 76 105.00 101.78 475.00 180.00 193.24 598.60 504.59 3.665 77 105.00 101.78 475.00 180.00 193.01 599.67 505.61 3.666 78 105.00 101.78 477.63 178.95 192.53 617.36 522.96 3.667 79 104.47 101.59 476.32 179.47 191.41 613.13 518.88 3.668 80 103.95 101.40 476.32 179.47 190.17 617.21 522.96 3.668 81 105.00 101.78 476.32 179.47 192.87 607.98 513.78 3.668 82 105.00 101.78 476.32 179.47 192.64 609.06 514.80 3.668 83 104.47 101.59 475.00 180.00 191.77 603.75 509.69 3.669 84 103.95 101.40 475.00 180.00 190.30 608.91 514.80 3.670 65 104.47 101.59 475.00 180.00 192.45 600.53 506.63 3.672 86 102.89 101.03 475.00 180.00 188.04 615.98 521.94 3.672 87 104.47 101.59 475.00 180.00 192.22 601.60 507.65 3.673 88 104.47 101.59 475.00 180.00 191.99 602.68 508.67 3.674 89 105.00 101.78 476.32 179.47 193.09 606.91 512.76 3.675 90 105.00 101.78 477.63 178.95 192.76 616.29 521.94 3.676 91 104.47 101.59 476.32 179.47 191.86. 610.99 .. 516.84 3.677 92 103.95 101.40 476.32 179.47 190.40 616.13 521.94 3.677 93 104.47 101.59 476.32 179.47 191.63 612.06 517.86 3.677 94 103.95 101.40 475.00 180.00 190.75 606.7.6 512.76 3.678 95 105.00 101.78 476.32 179.47 193.77 603.68 509.69 3.679 96 103.95 101.40 475.00 180.00 190.53 607.83 513.78 3.680 97 103.42 101.22 475.00 180.00 189.28 611.91 517.86 3.680 98 103.95 101.40 475.00 180.00 191.44 603.53 509.69 3.680 99 105.00 101.78 476.32 179.47 193.54 604.76 510.71 3.680 Critical Failure Surface (citcle 1) Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: 180.00 Centre: XC: 188.70 YC: 620.06 Radius: R: 525.00 Generated failure surface: (20 points) 105.00 101.78 125.16 98.92 145.41 96.85 165.73 95.57 186.09 95.07 206.45 95.36 226.78 96.45 247.05 98.32 267.24 100.97 287.31 104.41 307.23 108.62 326.97 113.60 346.50 119.34 365.80 125.84 384.83. 133.08. 403.57 141.05 421.98 149.74 440.04 159.14 457.72 169.23 475.00 180.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 48 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 9.79 -8.1 6.28 6.34 2 0.00 35.0 1223.74 28738.90 4634.87 1.04 2 111.28 29.37 -8.1 6.28 6.34 2 0.00 35.0 3671.20 29090.41 4891.28 1.04 3 117.55 61.87 -8.1 7.61 7.68 3 100.00 18.0 7799.62 35743.04 5179.75 1.02 4 125.16 114.40 -5.8 9.40 9.45 3 100.00 18.0 14534.28 44535.36 5512.25 1.01 5 134.56 154.83. -5.8 9.40 9.45 3 100.00 18.0 19732.11 45101.85 5859.61 1.01 6 143.95 228.32 -3.9 10.89 10.92 4 2000.00 20.0 29133.05. 52722.98 6245.27 1.01 7 154.84 277.99 -3.6 10.89 10.91 4 2000.00 20.0 35461.75 53173.71 6582.96 1.01 8 165.73 302.67 -1.4 10.18 10.18 4 2000.00 20.0 38575.40 49903.61 6855.30 1.00 9 175.91 342.02 -1.4 10.18 10.18 4 2000.00 20.0 43534.53 50061.12 7117.40 1.00 10 186.09 246.69 0.8 6.72 6.72 4 2000.00 20.0 31360.92 33101.35 7285.26 1.00 11 192.81 265.84 0.8 6.82 6.82 4 2000.00 20.0 33710.68 33517.41 7415.93 1.00 12 199.63 281.69 0.8 6.82 6.82 4 2000.00 20.0 35599.02 33475.57 7541.48 1.00 13 206.45 447.51 3.0 10.17 10.18 4 2000.0D 20.0 56394.27 49781.39 7645.48 1.00 14 216.61 478.75 3.0 10.17 10.18 4 2000.00 20.0 60211.13 49437.39 7794.41 1.00 15 226.78 296.66 5.3 6.00 6.03 4 2000.00 20.0 37247.69 29068.99 7862.41 0.99 16 232.78 365.00 5.3 7.14 7.17 3 100.00 18.0 45751.74 34284.66 7974.44 1.00 17 239.92 378.41 5.3 7.14 7.17 3 100.00 18.0 47352.61 33990.36 8039.55 1.00 18 247.05 349.97 7.5 6.40 6.45 3 100.00 16.0 43714.99 30313.73 8070.52 1.00 19 253.45 359.14 7.5 6.40 6.45 3 100.00 18.0 44775.58 29974.65 8093.38 1.00 20 259.85 425.98 7.5 7.39 7.45 2 0.00 35.0 53062.96 34179.64 8081.27 0.98 21 267.24 461.04 9.7 7.79 7.90 2 0.00 35.0 57434.84 35670.96 8076.44 0.98 22 275.03 472.22 9.7 7.79 7.90 2 0.00 35.0 58832.24 35013.94 8080.18 0.98 23 282.81 173.31 9.7 2.81 2.85 2 0.00 35.0 21586.44 12485.36 8080.3D 0.98 24 285.62 104.38 9.7 1.68 1.71 2 0.00 35.0 12997.56 7428.69 8078.96 0.98 25 287.31 626.58 11.9 9.96 10.18 2 0.00 35.0 78023.67 43539.90 8028.32 0.98 26 297.27 640.88 11.9 9.96 10.18 2 0.00 35.0 79811.16 42202.27 7983.20 0.98 27 307.23 582.22 14.2 8.89 9.16 2 0.00 35.0 72511.10 36747.99 7963.14 0.98 28 316.11 590.38 14.2 8.89 9.16 2 0.00 35.0 73530.66 35466.11 8065.77 0.98 29 325.00 131.28 14.2 1.97 2.03 2 0.00 35.0 16350.47 7687.77 8086.76 0.98 30 326.97 634.51 16.4 9.77 10.18 2 0.00 35.0 79020.49 37457.15 7848.57 0.99 31 336.74 606.47 16.4 9.77 10.18 2 0.00 35.0 75515.22 35633.28 7499.54 0.99 32 346.50 210.04 18.6 3.50 3.69 2 0.00 35.0 26149.56 12447.55 7222.84 0.99 33 350.00 176.93 18.6 3.00 3.17 5 0.00 45.0. 19462.25 10463.97 6211.51 0.96 34 353.00 367.33 18.6 6.40 6.75 2 0.00 35.0 45724.14 21656.78 6898.85 0.99 35 359.40 353.54 18.6 6.40 6.75 2 0.00 35.0 44000.65 20748.97 6637.96 0.99 36 365.80 493.11 20.8 9.42 10.07 2 0.00 35.0 61355.91 29149.19 6263.35 1.00 37 375.22 459.39 20.8 9.42 10.07 2 0.00 35.0 57140.78 26897.91 5831.34 1.00 38 384.63 523.95 23.0 11.77 12.79 6 50.00 16.0 65287.34 30731.99 5435.37 1.05 39 396.40 289.88 23.0 7.16 7.78 2 0.00 35.0 36198.85 16743.56 4829.50 1.00 40 403.57 338.60 25.3 9.21 10.18 2 0.00 35.0 42278.47 19552.81 4364.64 1.01 41 412.77 298.59 25.3 9.21 10.18 2 0.00 35.0 37277.53 16792.16 3844.61 1.01 42 421.98 252.06 27.5 9.03 10.18 2 D.00 35.0 31462.00 13919.21 3286.67 1.02 43 431.01 209.62 27.5 9.03 10.18 2 0.00 35.0 26157.09 10933.87 2726.65 1.02 44 440.04 184.18 29.7 10.27 11.63 2 0.00 35.0 22971.74 8805.22 2085.26 1.03 45 450.31 25.41 29.7 1.75 2.02 6 50.00 16.0. 3171.37 1070.04 1745.84 1.10 46 452.06 70.09 29.7 5.66 6.52 2 0.00 35.0 8761.42 47 457.72 64.17 31.9 7.65 9.02 2 0.00 35.0 8020.76 48 465.37 28.88 31.9 9.63 11.34 2 0.00 35.0 3609.60 X -S Area: 14785.89 Path Length: 386.85 X -S Weight: 1847490.62 2596.22 1342.02 0.00 1431.66 1.03 949.55 1.05 333.89 1.05 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 3 RD+150.gmf Processed: 05 Aug 2019 13:45:54 DATA: Analysis 1 - Case 3 - Rapid Draw Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 35.0 _ 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) Cohesion Phi _ UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) 0.00 160.00 Profile: 2 (2 points) 0.00 100.00 Profile: 3 (2 points) 0.00 97.00 Profile: 4 (2 points) 305.00 160.00 Profile: 5 (2 points) 308.00 160.00 Profile: 6 (2 points) 308.00 100.00 Profile: 7 (2 points) 305.00 97.00 Slope Surface (7 points) 0.00 100.00 565.00 160.00 Down 150ft Setback - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 308.00 Material beneath: 580.00 Material beneath: 580.00 Material beneath: 580.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 160.00 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 580.00 160.00 100.00 100.00 280.00 160.00 250.00 150.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: Centre: XC: 198.31 YC: 516.30 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 67.50 20 R 50.00 50 RESULTS: Analysis 1 - Case 3 Rapid Draw Down 150ft Setback Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.388 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.89 430.00 160.00 580.00 150.00 160.00 425.00 497.50 150.00 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 430.00 160.00 198.31 516.30 425.00 2.892 K-- Critical Surface 2 105.00 101.67 430.00 160.00 198.51 515.21 423.98 2.894 3 105.00 101.67 430.00 160.00 198.71 514.12 422.96 2.896 4 105.00 101.67 430.00 160.00 198.90 513.02 421.94 2.898 5 104.47 101.49 430.00 160.00 197.98 516.08 425.00 2.899 6 105.00 101.67 430.00 160.00 199.10 511.93 420.92 2.899 7 104.47 101.49 430.00 160.00 198.17 514.99 423.98 2.901 8 105.00 101.67 430.00 160.00 199.29 510.84 419.90 2.901 9 104.47 101.49 430.00 160.00 198.37 513.90 422.96 2.902 10 105.00 101.67 430.00 160.00 199.49 509.75 418.88 2.903 11 104.47 101.49 430.00 160.00 198.57 512.80 421.94 2.904 12 105.00 101.67 430.00 160.00 199.69 508.65 417.86 2.905 13 103.95 101.32 430.00 160.00 197.64 515.86 425.00 2.905 14 104.47 101.49 430.00 160.00 198.76 511.71 420.92 2.906 15 105.00 101.67 430.00 160.00 199.88 507.56 416.84 2.907 16 103.95 101.32 430.00 160.00 197.84 514.77 423.98 2.907 17 104.47 101.49 430.00 160.00 198.96 510.62 419.90 2.908 18 103.95 101.32 430.00 160.00 198.04 513.68 422.96 2.909 19 105.00 101.67 430.00 160.00 200.08 506.47 415.82 2.909 20 104.47 101.49 430.00 160.00 199.16 509.53 418.88 2.910 21 103.95 101.32 430.00 160.00 198.23 512.59 421.94 2.911 22 105.00 - 101.67 430.00 160.00 200.27 505.37 414.80 2.911 23 104.47 101.49 430.00 160.00 199.35 508.43:. 417.86 2.911 24 103.42 101.14 430.00 160.00 197.31 515.64 425.00 2.912 25 103.95 101.32 430.00 160.00 198.43 511.49 420.92 2.912 26 105.00 101.67 430.00 160.00 200.47 504.28 413.78 2.913 27 104.47 101.49 430.00 160.00 199.55 507.34 416.84 2.913 28 103.42 101.14 430.00 160.00 197.51 514.55 423.98 2.914 29 103.95 101.32 430.00 160.00 198.63 510.40 419.90 2.914 30 105.00 101.67 430.00 160.00 200.67 503.18 412.76 2.915 31 104.47 101.49 430.00 160.00 199.75 506.25 415.82 2.915 32 103.42 101.14 430.00 160.00 197.70 513.46 422.96 2.915 33 103.95 101.32 430.00 160.00 198.82 509.31 418.88 2.916 34 105.00 101.67 430.00 160.00 200.86 502.09 411.73 2.917 35 103.42 101.14 430.00 160.00 197.90 512.37 421.94 2.917 36 104.47 101.49 430.00 160.00 199.94 505.15 414.80 2.917 37 103.95 101.32 430.00 160.00 199.02 508.21 417.66 2.918 38 102.89 100.96 430.00 160.00 196.97 515.42 425.00 2.918 39 105.00 101.67 430.00 160.00 201.06 500.99 410.71 2.918 40 103.42 101.14 430.00 160.00 198.10 511.27 420.92 2.919 41 104.47 101.49 430.00 160.00 200.14 504.06 413.78 2.919 42 103.95 101.32 - 430.00 160.00 199.22 507.12 416.84 2.919 43 102.89 100.96 430.00 160.00 197.17 514.33 423.98 2.920 44 103.42 101.14 430.00 160.00 198.29 510.18 419.90 2.920 45 105.00 101.67 430_.00 160.00 201.26 499.89 409.69 2.920 46 104.47 101.49 430.00 160.00 200.34 502.96 412.76 2.921 47 103.95 101.32 430.00 160.00 199.41 506.02 415.82 2.921 48 102.89 100.96 430.00 160.00 197.37 513.24 422.96 2.921 49 103.42 101.14 430.00 160.00 198.49 509.09 418.88 2.922 50 105.00 101.67 430.00 160.00 201.46 498.79 408.67 2.922 51 104.47 101.49 430.00 160.00 200.53 501.86 411.73 2.922 52 103.95 101.32 430.00 160.00 199.61 504.93 414.80 2.923 53 102.89 100.96 430.00 160.00 197.57 512.15 421.94 2.923 54 103.42 101.14 430.00 160.00 198.69 507.99 417.86 2.924 55 105.00 101.67 430.00 160.00 201.65 497.70 407.65 2.924 56 104.47 101.49 430.00 160.00 200.73 500.77 410.71 2.924 57 103.95 101.32 430.00 160.00 199.81 503.83 413.78 2.925 58 102.89 100.96 430.00 160.00 197.76 511.05 420.92 2.925 59 103.42 101.14 430.00 160.00 198.88 506.90 416.84 2.925 60 104.47 101.49 430.00 160.00 200.93 499.67 409.69 2.926 61 105.00 101.67 430.00 160.00 201.85 496.60 406.63 2.926 62 102.89 100.96 430.00 160.00 197.96 509.96 419.90 2.926 63 103.95 101.32 430.00 160.00 200.01 502.74 412.76 2.926 64 103.42 101.14 430.00 160.0D 199.08 505.80 415.82 2.927 65 102.89 100.96 430.00 160.00 198.16 508.87 418.88 2.928 66 104.47 101.49 430.00 160.00 201.13 498.57 408.67 2.928 67 105.00 101.67 430.00 160.00 202.05 495.50 405.61 2.928 68 103.95 101.32 430.00 160.00 200.20 501.64 411.73 2.928 69 103.42 101.14 430.00 160.00 199.28 504.71 414.80 2.929 70 102.89 100.96 430.00 160.00 198.36 507.77 417.86 2.930 71 104.47 101.49 430.00 160.00 201.32 497.47 407.65 2.930 72 103.95 101.32 430.00 160.00 200.40 500.54 410.71 2.930 73 105.00 101.67 430.00 160.00 202.24 494.40 404.59 2.930 74 103.42 101.14 430.00 160.00 199.48 503.61 413.78 2.930 75 101.84 100.61 430.00 160.00 196.31 514.98 425.00 2.931 76 104.47 101.49 430.00 160.00 201.52 496.37 406.63 2.932 77 103.95 101.32 430.00 160.00 200.60 499.45 409.69 2.932 78 101.84 100.61 430.00 160.00 196.50 513.69 423.98 2.932 79 105.00 101.67 430.00 160.00 202.44 493.30 403.57 2.932 BO 103.42 101.14 430.00 160.00 199.67 502.52 412.76 2.932 81 105.00 101.67 430.00 160.00 203.43 467.79 398.47 2.932 62 102.37 100.79 430.00 160.00 196.64 515.20 425.00 2.933 83 101.84 100.61 430.00 160.00 196.70 512.60 422.96 2.933 84 102.37 100.79 430.00 160.00 196.84 514.11 423.98 2.933 85 103.95 101.32 430.00 160.00 200.80 498.35 408.67 2.933 86 104.47 101.49 430.00 160.00 201.72 495.27 405.61 2.933 87 103.42 101.14 430.00 160.00 199.87 501.42 411.73 2.934 88 105.00 101.67 430.00 160.00 202.64 492.20 402.55 2.934 89 102.37 100.79 430.00 160.00 197.04 513.02 422.96 2.934 90 101.84 100.61 430.00 160.00 196.90 511.71 421.94 2.934 91 102.37 100.79 430.00 160.00 197.23 511.93 421.94 2.935 92 101.32 100.44 430.00 160.00 195.97 514.76 425.00 2.935 93 105.00 101.67 430.00 160.00 203.23 488.89 399.49 2.935 94 104.47 101.49 430.00 160.00 202.71 489.77 400.51 2.935 95 103.95 101.32 430.00 160.00 200.99 497.25 407.65 2.935 96 102.37 100.79 430.00 160.00 197.43 510.83 420.92 2.935 97 104.47 101.49 430.00 160.00 201.92 494.17 404.59 2.935 98 103.42 101.14 430.00 160.00 200.07 500.32 410.71 2.935 99 101.84 100.61 430.00 160.00 197.10 510.61 420.92 2.936 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: 160.00 Centre: XC: 198.31 -- YC: 516.30 Radius: R: 425.00 Generated failure surface: (20 points) 105.00 101.67 122.49 98.11 140.11 95.30 157.84 93.23 175.64 91.90 193.48 91.32 211.32 91.50 229.15 92.42 246.91 94.08 264.60 96.50. 282.16 99.65 299.58 103.54 316.82 108.15 333.85 113.49 350.64 119.53 367.17 126.28 383.39 133.71 399.29 141.82 414.84 150.59 430:00 160.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 18.06 -11.5 .21 8.37 2 0.00 35.0 2257.88 1150.15 282.26 1.07 2 113.21 63.98 -11.5 .28 9.47 3 100.00 18.0 8138.07 4074.13 894.22 1.04 3 122:49 77.48 -9.1 .98 7.07 3 100.00 18.0 9957.89 4896.09 1445.94 1.03 4 129.47 164.44 -9.1 1 .65 10.78 4 2000.00 20.0 21210.48 10390.96 2126.32 -1.03 5 140.11 177.85 -6.7 .86 8.92 4 2000.00 20.0 22971.71 11173.65 2693.89 1.02 6 148.98 213.22 -6.7 .86 8.92 4 2000.00 20.0 27539.72 13395.68 3213.26 1.02 7 157.84 247.98 -4.3 .90 8.92 4 2000.00 20.0 32009.56 15517.15 3666.67 1.01 8 166.74 280.28 -4.3 .90 8.92 4 2000.00 20.0 36141.21 17538.13 4133.21 1.01 9 175.64 311.64 -1.9 .92 8.92 4 2000.00 20.0 40131.63 19456.71 4531.65 1.00 10 184.56 340.73 -1.9 .92 8.92 4 2000.00 20.0 43809.34 21272.99 4944.86 1.00 11 193.48 368.34 0.6 .92 8.92 4 2000.00 20.0 47275.48 22985.65 5288.12 1.00 12 202.40 394.12 0.6 .92 8.92 4 2000.00 20.0 50485.21 24594.14 5647.61 1.00 13 211.32 417.66 3.0 .91 8.92 4 2000.00 20.0 53387.66 26096.98 5935.51 0.99 14 220.23 440.03 3.0 .91 8.92 4 2000.00 20.0 56118.36 27494.67 6240.95 0.99 15 229.15 459.29 5.4 .88 8.92 4 2000.00 20.0 58430.40 28785.87 6473.42 0.99 16 238.03 478.19 5.4 .88 8.92 4 2000.00 20.0 60674.46 29970.47 6724.61 0.99 17 246.91 170.32 7.8 .09 3.11 4 2000.00 20.0 21572.08 10726.61 6837.57 0.99 18 250.00 410.28 7.8 .30 7.37 4 2000.00 20.0 51868.36 25279.42 6951.86 0.99 19 257.30 420.77 7.8 .30 7.37 4 2000.00 20.0 53063.12 24821.71 7111.75 0.99 20 264.60 164.36 10.2 .81 2.85 4 2000.00 20.0 20690.42 9471.13 7164.25 0.99 21 267.40 373.42 10.2 .30 6.40 3 _ 100.00 18.0 46923.22 20938:35 7360.96_ 1.00 22 273.70 379.53 10.2 .30 6.40 3 100.00 18.0 47572.25 20486.89 7460.57 1.00 23 280.00 130.99 10.2 .16 2.20 3 100.00 18.0 16393.21 6933.04 7483.29 1.00 24 282.16 94.51 12.6 .57 1.61 3 100.00 18.0 11818.45 5038.50. 7409.70 1.00 25 283.73 468.43 12.6 .92 8.12 2 0.00 35.0 58553.30 24882.84 7167.74 0.97 26 291.66 454.41 12.6 .92 8.12 2 0.00 35.0 56801.55 23986.86 6952.34 0.97 27 299.58 301.99 15.0 .42 5.61 2 0.00 35.0 37748.28 16007.68 6716.80 0.97 28 305.00 163.83 15.0 .00 -3.11 5 0.00 45.0 18021.55 8645.24 5734.05 0.95 29 308.00 467.81 15.0 .82 9.13 2 0.00 35.0 58475.86 24520.50 6388.46 0.97 30 316.82 430.15 17.4 .52 8.92 2 0.00 35.0 53768.17 22559.04 6047.26 0.97 31 325.34 407.43 17.4 .52 8.92 2 0.00 35.0 50928.68 21073.64 5725.58 0.97 32 333.85 377.83 19.8 .40 8.92 2 0.00 35.0 47228.25 19489.49 5349.18 0.98 33 342.25 352.45 19.8 .40 8.92 2 0.00 35.0 44055.98 17806.36 4986.50 0.98 34 350.64 320.39 22.2 .26 8.92 2 0.00 35.0 40048.45 16025.60 4573.02 0.98 35 358.91 292.52 22.2 .26 8.92 2 0.00 35.0 36565.41 14147.59 4170.44 0.98 36 367.17 258.50 24.6 .11 8.92 2 0.00 35.0 32312.05 12173.91 3721.43 0.99 37 375.28 228.35 24.6 .11 8.92 2 0.00 35.0 28543.30 10104.50 3280.09 0.99 38 383.39 192.87 27.0 .95 8.92 2 0.00 35.0 24108.60 7941.18 2797.18 1.00 39 391.34 160.64 27.0 .95 8.92 2 0.00 35.0. 20080.37 5683.91 2318.34 1.00 40 399.29 117.01 29.4 .25 8.33 2 0.00 35.0 14626.21 3187.54 1820.58 -1.01 41 406.54 87.35 29.4 .25 8.33 2 0.00 35.0 10918.49 1062.51 1340.06 1.01 42 413.80 61.12 31.5 .10 9.51 2 0.00 35.0 7640.43 0.00 821.07 1.02 43 421.90 20.37 31.8 .10 9.54 2 0.00 35.0 2546.81 0.00 273.27 1.02 X -S Area: 11760.95 Path Leng h: 339.09 X -S Weight: 1483411.88 GALENA 7.2 Analysis Results Version: 7,20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 3 Full+150.gmf- Processed: 05 Aug 2019 14:06:51 DATA: Analysis 1 - Case 3 - Full Reservoir 150ft Setback Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) — Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion - Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi - UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion . Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) 0.00 160.00 Profile: 2 (2 points) 0.00 100.00 Profile: 3 (2 points) 0.00 97.00 Profile: 4 (2 points) 305.00 160.00 Profile: 5 (2 points) 308.00 160.00 Profile: 6 (2 points) 308.00 100.00 Profile: 7 (2 points) 305.00 97.00 Slope Surface (7 points) 0.00 100.00 565.00 160.00 Unit weight of water/medium above ground: 62.400 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 308.00 Material beneath: 580.00 Material beneath: 580.00 Material beneath: 580.00 Phreatic Surface (4 points) 0.00 150.00 Failure Surface 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 160.00 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 580.00 160.00 100.00 150.00 280.00 160.00 250.00 150.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: Centre: XC: 198.31 YC: 516.30 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 67.50 20 R 50.00 50 RESULTS: Analysis 1 - Case 3 - Full Reservoir 15Dft Setback Bishop Simplified Method of Analysis - Circular Failure Surface 497.50 150.00 - 430.00 160.00 580.00 150.00 Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 5.474 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 4.62 160.00 425.00 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 430.00 160.00 198.31 516.30 425.00 4.622 K-- Critical Surface 2 105.00 101.67 430.00 160.00 198.51 515.21 423.98 4.625 3 105.00 101.67 430.00 160.00 198.71 514.12 422.96 4.628 4 105.00 101.67 430.00 160.00 198.90 513.02 421.94 4.631 5 105.00 101.67 430.00 160.00 199.10 511.93 420.92 4.634 6 104.47 101.49 430.00 160.00 197.98 516.08 425.00 4.636 7 105.00 101.67 430.00 160.00 199.29 510.84 419.90 4.638 8 104.47 101.49 430.00 160.00 198.17 514.99 423.98 4.639 9 105.00 101.67 430.00 160.00 199.49 509.75 418.88 4.641 10 104.47 101.49 430.00 160.00 198.37 513.90 422.96 4.642 11 105.00 101.67 430.00 160.00 199.69 506.65 417.86 4.644 12 104.47 101.49 430.00 160.00 198.57 512.80 421.94 4.645 13 105.00 101.67 430.00 160.00 199.88 507.56 416.84 4.647 14 104.47 101.49 430.00 160.00 198.76 511.71 420.92 4.648 15 103.95 101.32 430.00 160.00 197.64 515.86 425.00 4.649 16 105.00 101.67 430.00 160.00 200.08 506.47 415.82 4.650 17 104.47 101.49 430.00 160.00 198.96 510.62 419.90 4.651 18 103.95 101.32 430.00 160.00 197.84 514.77 423.98 4.652 19 105.00 101.67 430.00 160.00 200.27 505.37 414.80 4.653 20. 104.41 101.49 430.00 160.00 199.16 .509.53 .418.88 4.654 21 103.95 101.32 430.00 160.00 198.04 513.68 422.96 4.655 22 105.00 101.67 430.00 160.00 200.47 504.28 413.78 4.656 23 104.47 101.49 430.00 160.00 199.35 508.43 417.86 4.657 24 103.95 101.32 430.00 160.00 198.23 512.59 421.94 4.658 25 105.00 101.67 430.00 160.00 200.67 503.18 412.76 4.659 26 104.47 101.49 430.00 160.00 199.55 507.34 416.84 4.660 27 103.95 101.32 430.00 160.00 198.43 511.49 420.92 4.661 28 105.00 101.67 430.00 160.00 200.86 502.09 411.73 4.662 29 104.47 101.49 430.00 160.00 199.75 506.25. 415.82 4.663 30 103.42 101.14 430.00 160.00 197.31 515.64 425.00 4.663 31 103.95 101.32 430.00 160.00 198.63 510.40 419.90 4_664 32 105.00 101.67 430.00 160.00 201.06 500.99 410.71 4.666 33 103.42 101.14 430.00 160.00 197.51 514.55 423.98 4.666 34 104.47 101.49 430.00 160.00 199.94 505.15 414.80 4.666 35 103.95 101.32 430.00 160.00 198.82 509.31 418.88 4.667 36 103.42 101.14 430.00 160.00 197.70 513.46 422.96 4.668 37 105.00 101.67 430.00 160.00 201.26 499.89 409.69 4.669 38 104.47 101.49 430.00 160.00.. 200.14 504.06 413.78 4.669 39 103.95 101.32 430.00 160.00 199.02 508.21 417.86 4.670 40 103.42 101.14 430.00 160.00 197.90 512.37 421.94 4.671 41 104.47 101.49 430.00 160.00 200.34 502.96 412.76 4.672 42 105.00 101.67 430.00 160.00 201.46 498.79 408.67 4.672 43 103.95 101.32 430.00 160.00 199.22 507.12 416.84 4.672 44 103.42 101.14 430.00 160.00 198.10 511.27 420.92 4.674 45 104.47 101.49 430.00 160.00 200.53 501.86 411.73 4.675. 46 105.00 101.67 430.00 160.00 201.65 497.70 407.65 4.675 47 103.95 101.32 430.00 160.00 199.41 506.02 415.82 4.675 48 102.89 100.96 430.00 160.00 196.97 515.42 425.00 4.676 49 103.42 101.14 430.00 160.00 198.29 510.18 419.90 4.677 50 104.47 101.49 430.00 160.00 200.73 500.77 410.71 4.678 51 105.00 101.67 430.00 160.00 201.85 496.60 406.63 4.676 52 103.95 101.32 430.00 160.00 199.61 504.93 414.80 4.678 53 102.89 100.96 430.00 160.00 197.17 514.33 423.98 4.678 54 103.42 101.14 430.00 160.00 198.49 509.09 418.88 4.679 55 104.47 101.49 430.00 160.00 200.93 499.67 409.69 4.681 56 103.95 101.32 430.00 160.00 199.81 503.83 413.78 4.681 57 105.00 101.67 430.00 160.00 202.05 495.50 405.61 4.681 58 102.89 100.96 430.00 -160.00 197.37 513.24 422.96 4.681 59 103.42 101.14 430.00 160.00 198.69 507.99 417.86 4.682 60 104.47 101.49 430.00 160.00 201.13 498.57 408.67 4.684 61 102.89 100.96 430.00 160.00 197.57 512.15 421.94 4.684 62 103.95 101.32 430.00 160.00 200.01 502.74 412.76 4.684 63 105.00 101.67 430.00 160.00 202.24 494.40 404.59 4.684 64 103.42 101.14 430.00 160.00 198.88 506.90 416.84 4.685 65 102.89 100.96 430.00 163.00 197.76 511.05 420.92 4.687 66 104.47 101.49 430.00 160.00 201.32 497.47 407.65 4.687 67 103.95 101.32 430.00 160.00 200.20 501.64 411.73 4.687 68 105.00 101.67 430.00 160.00 202.44 493.30 403.57 4.687 69 103.42 101.14 430.00 160.00 199.08 505.80 415.82 4.688 70 105.00 101.67 430.00 160.00 203.43 487.79 398.47 4.689 71 102.89 100.96 430.00 160.00 197.96 509.96 419.90 4.689 72 103.95 101.32 430.00 160.00 200.40 500.54 410.71 4.690 73 104.47 101.49 430.00 160.00 201.52 496.37 406.63 4.690 74 103.42 101.14 430.00 160.00 199.28 504.71 414.80 4.690 75 105.00 101.67 430.00 160.00 202.64 492.20 402.55 4.691 76 102.89 100.96 430.00 160.00 198.16 508.87 418.88 4.692 77 103.95 101.32 430.00 160.00 200.60 499.45 409.69 4.693 78 105.00 101.67 430.00 160.00 203.23 488.89 399.49 4.693 79 104.47 101.49 430.00 160.00 201.72 495.27 405.61 4.693 80 103.42 101.14 430.00 160.00 199.48 503.61 413.78 4.693 81 105.00 101.67 430.00 160.00 202.84 491.10 401.53 4.694 62 102.89 100.96 430.00 .160.00 196.36 507.77 417.86 4.695 83 103.95 101.32 430.00 160.00 200.80 496.35 408.67 4.696 84 104.47 101.49 430.00 160.00 201.92 494.17 404.59 4.696 65 103.42 101.14 430.00 160.00 199.67 502.52 412.76 4.696 86 104,47 101.49 430.00 160.00 202.71 489.77 400.51 4.696 87 105.00 101.67 430.00 160.00 203.04 489.99 400.51 4.697 88 103.95 101.32 430.00 160.00 200.99. 497.25. 407.65 4.699 89 103.42 101.14 430.00 160.00 199.87 501.42 411.73 4.699 90 104.47 101.49 430.00 160.00 202.11 493.07 403.57 4.699 91 104.47 101.49 430.00 160.00 202.51 490.87 401.53 4.700 92 101.84 100.61 430.00 160.00 196.31 514.98 425.00 4.701 93 103.95 101.32 430.00 160.00 201.19 496.15 406.63 4.701 94 103.42 101.14 430.00 160.0D 200.07 500.32 410.71 4.702 95 102.37 100.79 430.00 160.00 196.64 515.20 425.00 4.702 96 104.47 101.49 - 430.00. 160.00 202.31 491.97 402.55 4.702 97 105.00 101.67 430.00 160.00 204.42 482.26 393.37 4.703 98 102.37 100.79 430.00 160.00 196.84 514.11 423.98 4.703 99 101.84 100.61 430.00 160.00 196.50 513.89 423.98 4.703 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: 160.00 Centre: XC: 198.31 YC: 516.30 Radius:. R: 425..00. Generated failure surface: (20 points) 105.00 101.67 122.49 98.11 140.11 95.30 157.84 93.23 175.64 91.90 193.48 91.32 211.32 91.50 229.15 92.42 246.91 94.08 264.60 96.50 282.16 99.65 299.58 103.54 316.82 108.15 333.85 113.49 350.64 119.53 367.17 126.28 383.39 133.71 399.29 141.82 414.84 150.59 430.00 160.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 18.06 -11.5 .21 8.37 2 0.00 35.0 2257.88 25691.39 3210.16 1.05 2 113.21 63.98 -11.5 .28 9.47 - 3 100.00 18.0 8138.07 30113.60 3636.28 1.04 3 122.49 77.48 -9.1 .98 7.07 3 100.00 18.0 9957.89 23126.64 4018.36 1.02 4 129.47 164.44 -9.1 1 .65 10.78 4 2000.00 20.0 21210.48 36223.65 4471.93 1.03 5 140.11 177.85 -6.7 .86. 8.92 4 2000.00 20.0 22971.71 30746.90 4848.78 1.02 6 146.98 213.22 -6.7 .86 8.92 4 2000.00 20.0 27539.72 31323.88 5182.29 1.02 7 157.84 247.98 -4.3 .90 8.92 4 2000.00 20.0 32009.56 31796.95 5464.83 1.01 8 166.74 280.28 -4.3 .90 8.92 4 2000.00 20.0 36141.21 32166.26 5745.43 1.01 9 175.64 311.64 -1.9 .92 8.92 4 2000.00 20.0 40131.63 32431.24 5973.62 1.00 10 184.56 340.73 -1.9 .92 8.92 4 2000.00 20.0 43809.34. 32592.12. 6201.00 1.00 11 193.48 368.34 0.6 .92 8.92 4 2000.00 20.0 47275.48 32649.10 6374.74 1.00 12 202.40 394.12 0.6 .92 8.92 4 2000.00 20.0 50485.21 32601.34 6548.71 1.00 13 211.32 417.66 3.0 .91 8.92 4 2000.00 20.0 53387.86 32448.94 .6667.95 1.00 14 220.23 440.03 3.0 .91 8.92 4 2000.00 20.0 56118.36 32192.56 6788.39 1.00 15 229.15 459.29 5.4 .88 8.92 4 2000.00 20.0 58430.40 31832.20 6853.19 1.00 16 238.03 478.19 5.4 .88. 8.92 4 2000.00 20.0 60674.46 31367.78 6920.10 1.00 17 246.91 170.32 7.8 .09 3.11 4 2000.00 20.0 21572.08 10826.57 6926.19 1.00 18 250.00 410.28 7.8 .30 7.37 4 2000.00 20.0 51868.36 25279.42 7009.19 1.00 19 257.30 420.77 7.8 .30 7.37 4 2000.00 20.0 53063.12 24821.71 7170.49 1.00 20 264.60 164.36 10.2 .81 2.65 4 2000.00 20.0 20690.42 9471.13 7242.10 1.00 21 267.40 373.42 10.2 .30 6.40 3 100.00 18.0 46923.22 20938.35 7393.73 1.00 22 273.70 379.53 10.2 .30. 6.40 3 100.00 18.0 47572.25 20486.89 7494.61 1.00 23 280.00 130.99 10.2 .16 2.20 3 100.00 16.0 16393.21 6933.04 7517.86 1.00 24 282.16 94.51 12.6 .57 1.61 3 100.00 18.0... 11818.45 5038.50. 7452.09 1.01 25 283.73 468.43 12.6 .92 8.12 2 0.00 35.0 58553.30 24882.84 7248.02 0.99 26 291.66 454.41 12.6 .92 8.12 2 0.00 35.0 56801.55 23986.86 7030.57 0.99 27 299.58 301.99 15.0 .42 5.61 2 0.00 35.0. 37748.28 16007.68 6806.88 0.99 28 305.00 163.83 15.0 .00 3.11 5 0.00 45.0 18021.55 8645.24 5830.70 0.98 29 308.00 467.81 15.0 .82 9.13 2 0.00 35.0 58475.86 24520.50 6474.83 0.99 30 316.82 430.15 17.4 .52 8.92 2 0.00 35.0 53768.17 22559.04 6142.66 1.00 31 325.34 407.43 17.4 .52 8.92 2 0.00 35.0 50928.68 21073.64 5816.77 1.00 32 333.85 377.83 19.8 .40 8.92 2 0.00 35.0 47228.25 19489.49 5447.12 1.01 33 342.25 352.45 19.8 .40 .92 2 0.00 35.0 44055.98 17806.36 5079.06 1.01 34 350.64 320.39 22.2 .26 .92 2 0.00 35.0 40048.45 16025.60 4669.80 1.02 35 358.91 292.52 22.2 .26 .92 2 0.00 35.0 36565.41 14147.59 4260.52 1.02 36 367.17 258.50 24.6 .11 .92 2 0.00 35.0 32312.05 12173.91 3812.95 1.03 37 375.28 228.35 24.6 .11 .92 2 0.00 35.0 28543.30 10104.50 3363.48 1.03 36 383.39 192.87 27.0 .95 .92 2 0.00 35.0 24108.60 7941.18 2879.01 1.04 39 391.34 160.64 27.0 .95 .92 2 D.00 35.0 20080.37 5683.91 2390.48 1.04 40 399.29 117.01 29.4 .25 .33 2 0.00 35.0 14626.21 3187.54 1888.30 1.06 41 406.54 87.35 29.4 .25 .33 2 0.00 35.0 10918.49 1062.51 1397.16 1.06 42 413.80 61.12 31.5 .10 .51 2 0.00 35.0 7640.43 0.00 862.85 1.07 43 421.90 20.37 31.8 .10 .54 2 0.00 35.0 2546.81 0.00 287.33 1.08 X -S Area: 11760.94 Path Leng h: 339.09 X -S Weight: 1483411.88 75 105.00 101.67 438.68 190.00 190.26 454.00 362.50 3.153 76 105.00 101.67 435.00 190.00 190.84 441.56 350.56 3.153 77 103.95 101.32 435.53 190.00 187.78 452.10 360.66 3.153 78 104.47 101.49 436.58 190.00 189.14 451.13 359.74 3.154 79 104.47 101.49 435.00 190.00 188.96 447.39 356.07 3.154 80 104.47 101.49 435.00 190.00 168.69 448.41 356.99 3.154 81 105.00 101.67 437.63 190.00 190.23 451.17 359.74 3.154 82 104.47 101.49 435.53 190.00 189.11 448.30 -356.99 3.154 83 105.00 101.67 435.53 190.00 190.72 443.48 352.40 3.154 84 103.42 101.14 435.00 190.00 - 186.56 453.98 362.50 3.154 85 105.00 101.67 436.05 190.00 190.32 446.42 355.15 3.155 66 105.00 101.67 435.00 190.00 190.57 442.57 351.48 3.155 87 104.47 101.49 436.58 190.00 188.87 452.14 360.66 3.155 88 104.47 101.49 437.63 190.00 189.17 453.96 362.50 3.155 89 103.95 101.32 436.05 190.00 187.93 453.01 361.58 3.155 90 104.47 101.49 435.53 190.00 188.84 449.31 357.91 3.156 91 105.00 101.67 437.11. 190.00 190.35 449.25 357.91 3.156 92 104.47 101.49 436.05 190.00 189.26 449.21 357.91 3.156 93 105.00 101.67 435.53 190.00 190.45 444.50 353.32 3.156 94 105.00 101.67 435.00 190.00 190.30 443.59 352.40 3.157 95 105.00 101.67 436.05 190.00 190.86 444.39 353.32 3.157 96 104.47 101.49 437.11 190.00 189.29 452.04 360.66. 3.157 97 105.00 101.67 436.58 190.00 190.47 447.33 356.07 3.158 98 105.00 101.67 436.05 190.00 190.59 445.41 354.23 3.158 99 105.00. 101.67 438.16 190.00 190.65 451.07 359.74 3.158. Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 Centre: XC: 187.32 YC: 454.69 Generated failure surface: (20 points) 105.00 101.67 123.33 97.89 197.88 92.35 216.58 93.38 290.07 107.06 307.88 112.83 375.44 144.82 391.18 154.95 XR: 435.00 Radius: 141.84 235.19 325.37 406.39 95.06 95.37 119.51 165.87 YR: R: Slice Geometry and Properties - Critical Failure Surface (circle 1, 44 slices) 190.00 362.50 160.47 253.68 342.49 421.01 93.19 98.32 127.08 177.57 179.16 271..99. 359.19 435.00 92.29 102.22 135.53 190.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 17.63 -11.6 8.09 8.26 2 0.00 35.0 2204.29 42843.50. 5332.80 1.07 2 113.09 73.04 -11.6 10.25 10.46 3 100.00 18.0 9302.94 55540.19 5787.56 1.04 3 123.33 65.64 -8.7 5.81 5.87 3 100.00 18.0 8442.51 31731.47 6166.76 1.03 4 129.14 90:52 -8.7 6.35 6.42 4 2000.00 20.0 11668.65 35060.98 6525.18 1.03 5 135.49 110.11 -8.7 6.35 6.42 4 2000.00 20.0 14216.54 35449.70 6798.26 1.03 6 141.84 194.71 -5.7 9.31 9.36 4 2000.00 20.0 25143.92 52219.70 7056.49 1.02 7 151.15 232.32 -5.7 9.31 9.36 4 2000.00 20.0 29984.89 52765.47 7385.76 1.02 8 160.47 268.77 -2.8 9.35 9.36 4 2000.00 20.0 34648.96 53170.30 7635.17 1.01 9 169.82 302.14 -2.8 9.35 9.36 4 2000.00 20.0 38887.04. 53434.46 7895.34 1.01 10 179.16 333.65 0.2 9.36 9.36 4 2000.00 20.0 42858.58 53557.55 8073.50 1.00 11 188.52 362.56 0.2 9.36 9.36 4 2000.00 20.0 46467.97 53539.36 8264.37 1.00 12 197.88 270.13 3.1 6.56 6.57 4 2000.00 20.0 34549.85 37486.88 8353.31 1.00 13 204.44 282.10 3.1 6.56 6.57 4 2000.00 20.0 36008.12 37339.03 8438.56 1.00 14 211.00 249.28 3.1 5.58 5.58 4 2000.00 20.0 31796.07 31633.20 8523.01 1.00 15 216.58 433.10 6.1 9.31 9.36 4 2000.00 20.0 55239.46 52638.94 8549.44 0.99 16 225.88 452.70 6.1 9.31 9.36 4 2000.00 20.0 57714.76 52057.19 8620.16 0.99 17 235.19 517.05 9.1 10.22 10.35 4 2000.00 20.0 65854.05 56721.46 8604.13 0.99 18 245.41 431.30 9.1 8.26 8.37 3 100.00 18.0 54858.85 45088.23 8708.43 1.00 19 253.68 421.25 12.0 7.69 8.07 3 100.00 18.0 53498.36 42714.93 8660.27 1.00 20 261.57 185.58 12.0 3.43 3.51 2 0.00 35.0 23556.23 18316.41 8547.30 0.98 21 265.00 382.01 12.0 6.99 7.14 2 0.00 35.0 48505.34 36777.28 8518.75 0.98 22 271.99 443.80 15.0 8.01 8.30 2 0.00 35.0 56340.81 41765.48 8406.46 0.98 23 280.00 503.38 15.0 9.00 9.32 2 0.00 35.0 63975.02 45597.38 8305.82 0.98 24 289.00 531.70 17.6 9.44 9.90 2 0.00 35.0 67652.28 46815.43 8134.94 0.98 25 298.44 532.55 17.9 9.44 9.92 2 0.00 35.0 67757.86 45009.58 7944.85 0.98 26 307.88 491.87 20.9 8.74 9.36 2 0.00 35.0 62585.59 40594.17 7694.40 0.99 27 316.62 488.15 20.9 8.74 9.36 2 0.00 35.0 62120.84 38643.45 7461.52 0.99 26 325.37 472.06 23.9 8.56 9.36 2 0.00 35.0 60086.56 36562.39 7159.13 0.99 29 333.93 464.08 23.9 8.56 9.36 2 0.00 35.0 59087.96 34350.78 6869.74 0.99 30 342.49 503.59 26.8 9.51 10.66 2 0.00 35.0 64147.85 36267.57 6488.17 1.01 31 352.00 370.29 26.8 7.19 8.06 2 0.00 35.0 47192.05 25268.86 6210.90 1.01 32 359.19 130.16 29.8 2.57 2.97 2 0.00 35.0 16594.51 8834.94 6049.02 1.02 33 361.77 405.72 29.8 8.23 9.49 6 150.00 22.0 51635.53 26429.48 6002.85 1.07 34 370.00 254.17 29.8 5.44 6.27 6 150.00 22.0 32252.09 15927.50 5668.60 1.07 35 375.44 335.74 32.7 7.87 9.36 6 150.00 22.0 42469.81 21402.53 5125.08 1.10 36 383.31 295.88 32.7 7.87 9.36 6 150.00 22.0 37248.71 18445.79 4488.81 1.10 37 391.18 128.49 35.7 3.82 4.70 5 0.00 45.0 14134.18 8114.35 3332.32 1.00 36 395.00 100.13 35.7 3.21 3.96 2 0.00 35.0 12573.73 6211.97 3584.88 1.06 39 398.21 118.99 35.7 4.18 5.14 6 150.00 22.0 14911.07 7218.08 3353.87 1.13 40 402.39 102.21 35.7 4.00 4.92 2 0.00 35.0 12776.37 6010.43 2919.41 1.06 41 406.39 154.98 38.7 7.31 9.36 2 0.00 35.0 19372.12 8879.79 2389.74 1.08 42 413.70 112.24 38.7 7.31 9.36 2 0.00 35.0 14030.13 5464.77 1714.94 1.08 43 421.01 66.74 41.6 7.24 9.69 2 0.00 35.0 8342.06 1944.02 992.91 1.11 44 428.25 20.26 41.6 6.75 9.03 2 0.00 35.0 2532.62 0.00 312.26 1.11 X -S Area: 12702.73 Path Length: 355.68 X -S Weight: 1615227.00 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & TConsulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 4 RD.gmf Processed: 30 Jul 2019 11:18:30 DATA: Analysis 1 - Case 4 —Rapid Draw Down Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi UnitWeight Ru 2000.00 20.0 - 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 . Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (11 profiles) Material beneath: 2 - Sand and Gravel 385.00 185.00 Material beneath: 6 - Clay 385.00 160.00 Material beneath: 2 — Sand and Gravel 385.00 156.00 Material beneath: 3 - Weathered Bedrock 385.00 100.00 Material beneath: 4 - Stable Bedrock 385.00 97.00 Material beneath: 5 - Slurry Wall 388.00 185.00 Material beneath: 2 - Sand and Gravel 488.00 185.00 Material beneath: 6 - Clay 488.00 160.00 Material beneath: 2 - Sand and Gravel 488.00 156.00 Material beneath: 3 - Weathered Bedrock 488.00 100.00 Material beneath: 4 - Stable Bedrock 488.00 97.00 Profile: 1 (2 points) 0.00 185.00 Profile: 2 (2 points) 0.00 160.00 Profile: 3 (2 points) 0.00 156.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 385.00 185.00 Profile: 7 (2 points) 388.00 185.00 Profile: 8 (2 points) 388.00 160.00 Profile: 9 (2 points) 388.00 156.00 Profile: 10 (2 points) 388.00 100.00 Profile: 11 (2 points) 385.00 97.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 100.00 100.00 355.00 185.00 100.00 100.00 488.00 185.00 325.00 175.00 488.00 175.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 405.00 YR: 185.00 Centre: XC: 171.10 YC: 445.37 Radius: R: 350.00 Variable Restraints Parameter descriptor: XL XR R Range of variation: 10.00 50.00 50.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 4 - Rapid Draw Down Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.912 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.52 Results Summary -Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 405.00 185.00 171.10 445.37 350.00 1.521 <-- Critical Surface 2 105.00 101.67 405.00 185.00 171.41 444.27 348.98 1.530 3 105.00 101.67 405.00 185.00 171.71 443.17 347.96 1.535 4 104.47 101.49 405.00 185.00 170.85 445.14 350.00 1.541 5 105.00 101.67 405.00 185.00 172.02 442.07 346.94 1.543 6 105.00 101.67 405.00 185.00 172.32: 440.97 345.92 1.549 7 104.47 101.49 405.00 185.00 171.15 444.04 348.98 1.551 8 105.00- 101.67 405.00 185.00 172.63 439.87 344.90 1.555 9 104.47 101.49 405.00 185.00 171.46 442.94 347.96 1.557 10 105.00 101.67 405.00 185.00 172.94 438.77 343.88 1.561 11 104.47 101.49 405.00 185.00 171.76 441.84 346.94 1.562 12 103.95 .- 101.32 405.00 185.00 170.59 444.91 350.00 1.564 13 105.00 101.67 407.63 185.00 173.26 444.95 350.00 1.565 14 105.00 101.67 405.00 185.00 173.24 437.66 342.86 1.566 15 104.47 101.49 405.00 185.00 172.07 440.74 345.92 1.568 16 103.95 - 101.32 405.00 185.00 170.90 443.81 348.98 1.570 17 105.00 101.67 407.63 185.00 173.57 443.84 348.98 1.571 18 105.00 101.67 405.00 185.00 173.55 436.56 341.84 1.572 19 104.47 101.49 405.00 185.00 172.38 439.64 344.90 1.573 20 103.95 101.32. 405.00 185.00 171.21 442.71 347.96 1.575 21 105.00 101.67 407.63 185.00 173.87 442.74 347.96 1.576 22 I05.00 101.67 405.00 185.00 173.86 435.46 -340.82 1.578 23 104.47 101.49 405.00 185.00 172.68 436.54 343.88 1.579 24 103.95 101.32 405.00 185.00 171.51 441.61 346.94 1.581 25 105.0O 101.67 407.63 185.00 174.17 441.64 346.94 1.582 26 103.42 101.14 405.00 185.00 170.34 444.68 350.00 1.583 27 105.00 101.67 405.00 185.00 174.16 434.35 -339.80 1.583 28 104.47 101.49 407.63 -185.00 173.01 444.72 350.00 1.583 29 104.47 101.49 405.00 185.00 172.99 437.43 342.86 1.584 30 103.95 101.32 405.00 185.00 171.82 440.51 345.92 1.586 31 105.00 101.67 407.63 185.00 174.48 440.54 345.92 1.588 32 103.42 101.14 405.00 185.00 170.65 443.58 348.98 1.588 33 104.47 101.49 407.63 185.00 173.31 443.61 348.98 1.589 34 105.00 101.67 405.00 185.00 174.47 433.24 338.78 1.589 35 104.47 101.49 405.00 185.00 173.30 436.33 341.84 1.590 36 103.95 101.32 405.00 185.00 172.12 439.41 344.90 1.591 37 105.00 101.67 407.63 185.00 174.78 439.43 344.90 1.593 38 103.42 101.14 405.00 185.00 170.95 442.48 347.96 1.593 39 104.47 101.49 407.63 185.00 173.62 442.51 347.96 1.594. 40 105.00 101.67 405.00 185.00 174.78 432.14 337.76 1.595 41 104.47 101.49 405.00 185.00 173.60 435.22 340.82 1.596 42 103.95 101.32 405.00 185.00 172.43 438.31 343.88 1.597 43 105.00 101.67 407.63 185.00 175.09 438.33 343.88 1.599 44 103.42 101.14 405.00 185.00 171.26 441.38 346.94 1.599 45 104.47 101.49 407.63 185.00 173.92 441.41 346.94 1.600 46 105.00 101.67 405.00 185.00 175.09 431.03 336.73 1.601 47 104.47 101.49 405.00 185.00 173.91 434.12 339.80 1.601 48 102.89 100.96 405.00 185.00 170.09 444.45 350.00 1.601 49 103.95 101.32 407.63 185.00 172.75 444.49 350.00 1.601 50 103.95 101.32 405.00 185.00 172.74 437.20 342.86 1.602 51 105.00 101.6.1 410.26 185.00 175.41 444.51 350.00 1.603 52 103.42 101.14 405.00 185.00 171.57 440.28 345.92 1.604 53 105.00 101.67 407.63 185.00 175.39 437.22 342.86 1.604 54 104.47 101.49 407.63 185.00 174.22 440.30 345.92 1.605 55 105.00 101.67- 405.00 185.00 175.39 429.92 335.71 1.606 56 102.89 100.96 405.00 185.00 170.39 443.35 348.98 1.606 57 103.95 101.32 407.63 185.00 173.06 443.38 348.98 1.607 58 104.47 101.49 405.00 -185.00 174.22 433.01 338.78 1.607 59 103.95 101.32 405.00 185.00 173.05 436.10 341.84 1.608 60 105.00 101.67 410.26 185.00 175.72 443.41 348.98 1.609 61 103.42 101.14 405.00 185.00 171.87 439.18 344.90 1.609 62 105.00 101.67 407.63 185.00 175.70 436.11 341.84 1.610 63 104.47 101.49 407.63 185.00 174.53 439.20 344.90 1.611 64 102.89 100.96 405.00 185.00 170.70 442.25 347.96 1.612 65 103.95 - 101.32 - 407.63 185.00 173.36 442.28 347.96 1.612 66 105.00 101.67 405.00 185.00 175.70 428.81 334.69 1.612 - 67 104.47 101.49 405.00 185.00 174.53 -431.90 - 337.76 1.612 68 103.95 101.32 405.00 185.00 173.35 434.99 340.62 1.613 69 - 105.00 101.67 410.26 185.00 176.02 442.30 347.96 1.614 70 103.42 101.14 405.00 185.00 172.18 438.07 343.88 1.615 71 105.00 101.67 407.63 185.0D 176.00 435.01 340.82 - 1.616 72 104.47 -101.49- 407.63 185.0D 174.83 438.09 343.88 1.616 73 102.89 100.96 405.00 185.00 171.01 441.15 346.94 1.617 74 103.95 101.32 407.63 185.00 173.67 441.18 -346.94 1.617 75 105.00 101.67 405.00 185.00 176.01 427.70 333.67 1.618 76 104.47 101.49 405.00 185.0D 174.83 -430.79 336.73 1.618 77 103.95 101.32 405.00 185.00 - 173.66 433.88 339.80 1.619 78 103.42 101.14 407.63 185.00 172.50 444.26 350.00 1.619 - 79 102.37 100.79 405.00 185.00 169.84- 444.23 - 350.00 1.619 80 105.00 101.67 410.26 185.00 176.32 441.20 346.94 1.620 81 103.42 101.14 405.00 185.00 172.49 436.97 342.86 1.620 82 104.47 101.49 410.26 185.00 175.16 444.28 350.00- 1.621 83 105.00 101.67 407.63 185.00 176.31 433.90 339.80 1.621 64 104.47 101.49 407.63 185.00 175.14 436.99 342.86 1.622 85 102.89 100.96 405.00 185.00 171.31 44-0.05 345.92 1.622 86 103.95 101.32 407.63 185.00 173.97 440.07 345.92 1.623 87 104.47 101.49 405.00 185.00 175.14 429.68 335.71 1.624 88 105.00 101.67 405.00 185.00 176.32 426.58 332.65 1.624 89 103.95 101.32 405.00 185.00 - 173.97 432.78 338.78 1.624 90 103.42 101.14. 407.63 185.00 172.80 443.15 348.98. 1.624 91 102.37 100.79 405.00 185.00 170.14 443.12 348.98 1.624 92 105.00 101.67 410.26 185.00 176.62 440.09 345.92 1.625 93 103.42 101.14 405.00 185.00 172.79 435.86 341.84 1.625 94 104.47 101.49 410.26 185.00 175.46 443.17 348.98 1.626 95 105.00 101.67 407.63 185.00- 176.61 432.79 338.78: 1.627 96 102.89 100.96 405.00 185.00 171.62 438.95 344.90 1.627 97 104.47 101.49 407.63 185.00 175.44 435.88 341.64 1.627 98 103.95 101.32 407.63 185.00 174.28 438.97 344.90 1.628 99 104.47 101.49 405.00 185.00 175.45 428.57 334.69 1.629 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 405.00 YR: 185.00 Centre: XC: 171.10 YC: 445.37. Radius: R: 350.00 Generated failure surface: (20 points) 105.00 101.67 121.75 98.87 138.61 96.88 155.55 95.71 172.53 95.37 189.50 95.85 206.43 97.16 223.28 99.28 240.01 102.22 256.57 105.96 272.93 110.51 289.05 115.84 304.90 121.95 320.42 128.82 335.60 136.43• 350.39 144.78 364.76 153.83 378.67 163.56 392.10 173.96 405.00 185.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 24.85 -9.5 9.96 10.10 2 0.00 35.0 3106.08 1572.10 324.77 1.10 2 114.96 45.36 -9.5 6.78 6.88 3 100.00 18.0 5731.68 2869.83 872.09 1.05 3 121.75 80.54 -6.7 7.92 7.97 3 100.00 18.0 10270.55 5060.51 1321.95 1.03 4 129.67 108.83 -6.7 7.92 7.97 3 100.00 18.0 13924.94 6837.99 1789.56 1.03 5 137.59 156.18 -4.3 8.98 9.01 4 2000.00 20.0 20004.72 9772.26 2347.22 1.02 6 146.57 188.63 -3.9 8.98 9.00 4 2000.00 20.0 24150.09 11798.17 2803.44 1.02 155.55 206.31 -1.2 .8.49 8.49 4 2000.00 20.0 26382.76 12876.46 3142.40 1.01 8 164.04 23L..78 -1.2 8.49 8.49 4 2000.00 20.0 29590.19 14466.33 3521.17 1.01 9 172.53 255.46 1.6 8.49 8.49 4 2000.00 20.0 32544.30 15946.88 3784.42 0.99 10 181.02 277.42 1.6 8.49 8.49 4 2000.00 20.0 35257.55 17318.20 4103.05 0.99 11 189.50 260.36 4.4. . 7.45 7.47 4 2000.00 20.0 33005.83 16294.81 4288.83 .0.98 12 196.96 274.60 4.4 7.45 7.47 4 2000.00 20.0 .. 34716.70- 17185.67. 4516.42 0.98 13 204.41 77.12 4.4 2.03 2.03 3 100.00 18.0 9734.41 4826.38 4760.25 0.99 14 206.43 330.17 7.2 8.42 8.49 3 100.00 18.0 41582.77 20765.52 4863.03 0.98 15 214.86 344.88 7.2 8.42 8.49 3 100.00 18.0 43278.38 21690.65 5061.89 0.98 16 223.28 172.80 10.0 4.10 4.16 3 100.00 18.0 21623.39 10947.73 5166.21 0.98 17 227.38 271.15 10.0 6.31 6.41 2 0.00 35.0 33893.62 17178.82 5168.57 0.94 18 233.69 277.43 10.0 6.31 6.41 2 0.00 35.0 34678.66 17576.70 5288.30 0.94 19 240.01 371.78 12.7 8.28 8.49 2 0.00 35.0 46472.70 23785.12 5346.81 0.93 20 248.29 379.13 12.7 8.28 8.49 2 0.00 35.0 47391.45 24255.34 5452.50 0.93 21 256..57 265.12 15.5 5.72 5.93 2 0.00 35.0 33139.45 17169.60 5468.86 0.92 22 262.28 266.93 15.5 5.72 5.93 2 0.00 35.0 33366.31 17287.14 5506.29 0.92 23 268.00 231.70 15.5 4.93 5.12 2 0.00 35.0 28941.69 15005.22 5537.52 0.92 24 272.93 333.31 18.3 7.07 7.45 2 0.00 35.0 41564.25 21907.11 5490.69 0.91 25 280.00 426.90 18.3 9.05 9.53 2 0.00 35.0 53182.01 28058.51 5487.96 0.91 26 289.05 372.09 21.1 7.92 8.49 2 0.00 35.0 46352.38 24884.13 5410.90 0.91 27 296.97 368.81 21.1 7.92 8.49 2 0.00 35.0 45942.57 24664.87 5363.09 0.91 28 304.90 356.58 23.9 7.76 8.49 2 0.00 35.0 44417.65 24330.96 5237.55 0.91 29 312.66 350.01 23.9 7.76 8.49 2 0.00 35.0 43595.79 23882.32 5140.67 0.91 30 320.42 202.57 26.6 4.58 5.12 2 0.00 35.0 25229.29 14141.91 4997.43 0.91 31 325.00 230.26 26.6 5.30 5.93 2 0.00 35.0 28676.40 15748.28 4692.90 0.91 32 330.30 225.53 26.6 5.30 5.93 2 0.00 35.0 28084.92 14764.05 4771.12 0.91 33 335.60 305.02 29.4 7.40 8.49 2 0.00 35.0 37979.62 19326.82 4546.29 0.91 34 343.00 292.40 29.4 7.40 8.49 2 0.00 35.0 36402.55 17116.97 4323.34 0.91 35 350.39 175.12 32.2 4.61 5.45 2 0,00 35.0 21797.88 9777.16 4070.68 0.92 36 355.00 334.26 32.2 9.76 11.53 2 0.00 35.0 41587.10 17452.36 3643.17 0.92 37 364.76 93.43 35.0 3.11 3.79 2 0.00 35.0 11616.89 4750.79 3134.70 0.92 36 367.87 154.33 35.0 5.72 6.98 6 50.00 16.0 19234.04 7400.69 3076.10 1.08 39 373.58 118.21 35.0 5.09 6.21 2 0.00 35.0 14775.94 5125.45 2396.09 0.92 40 378.67 120.13 37.8 6.33 8.00 2 0.00 35.0 15016.66 4488.18 1896.79 0.93 41 385.00 46.12 37.8 3.00 3.79 5 0.00 45.0 5073.26 1272.46 1233.55 0.84 42 388.00 51.72 37.8 4.10 5.18 2 0.00 35.0 6464.64 848.71 1206.27 0.93 43 392.10 12.76 40.5 1.21 1.60 2 0.00 35.0: 1595.44 51.71 952.50 0.94 44 393.31 43.84 40.5 5.85 7.69 2 0.00 35.0 5479.75 0.00 672.61 0.94 45 399.15 14.61 40.5 5.85 7.69 2 0.00 35.0 1826.59 0.00 224.20 0.94 X -S Area: 9726.53 Path Length: 322.63 X -S Weight: 1218683.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 4 Full.gmf Processed: 30 Jul 2019 11:19:36 DATA: Analysis 1 - Case 4 - Full Reservoir Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto. Material: 6- (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 185.00 Profile: 2 (2 points) 0.00 160.00 Profile: 3 (2 points) 0.00 156.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5. (2 points) 0.00 97.00 Profile: 6 (2 points) 385.00 185.00 Profile: 7 (2 points) 388.00 185.00 Profile: 8. (2 points) 388.00 160.00 Profile: 9 (2 points) 388.00 156.00 Profile: 10 (2 points) 388.00 100.00 Profile: 11_(2 points) 385.00 97.00 - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 388.00 Material beneath: 488.00 Material beneath: 488.00 Material beneath: 488.00 Material beneath: 488.00 Material beneath: 488.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 0.00 175.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 185.00 6 - Clay 160.0.0 2 - Sand and Gravel 156.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 185.00 2 - Sand and Gravel 185.00 6 Clay 160.00 2 - Sand and Gravel 156.00 3 -. Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 355.00 175.00 325.00 185.00 175.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 405.00 YR: Centre: XC: 167.38 YC: 458.76 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 50.00 20 R 75.00 50 RESULTS: Analysis 1 - Case 4 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.465 488.00 185.00 488.00 175.00 185.00 362.50 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.61 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 405.00 185.00 167.38 458.76 362.50 2.606 <-- Critical Surface 2 105.00 101.67 405.00 185.00 167.84 457.12 360.97 2.644 3 105.00 101.67 405.00 185.00 168.29 455.49 359.44 2.671 4 104.47 101.49 405.00 185.00 167.13 458.54 362.50 2.683 5 105.00 101.67 405.00 185.00 168.74 453.85 357.91 2.698 6 104.47 101.49 . 405.00 185.00 167.58 456.90 360.97 2.709 7 105.00 101.67 407.63 185.00 169.57 458.37 362.50 2.726 8 105.00 101.67 405.00 185.00 169.20 452.21 356.38 2.726 9 104.47 101.49 405.00 1.85.00 168.03 455.27 359.44 2.735 10 103.95 101.32 405.00 185.00 166.87 458.31 362.50 2.747 11 105.00 101.67 405.00 185.00 169.66 450.57 354.85 .2.753 12 105.00 101.67 407.63 185.00 170.02 456.73 360.97 2.757 13 104.47 101.49 405.00 185.00 168.49 453.63 357.91 2.767 14 103.95 101.32 405.00 185.00 167.32 456.6.8 .360.97 2.769 15 105.00 101.67 405.00 185.00 170.11 448.93 353.32 2.784 16 104.47 - 101.49.- 405.00 185.00 168.94 451.99 356.38 2.785 17 104.47 101.49. 407.63. 185.00 169.31 458.15 362.50 2.787 18 105.00 101.67 407.63 185.00- 170.47 455.09 359.44 2.788 19 103.95 101.32' 405.00 185.00 167.78 455.04 359.44 2.795 20 103.42 101.14 405.00 185.00 166.61 458.09 362.50 2.798 21 105.00 101.67 405.00 185.00 170.57 447.29 351.79 2.805 22 105.00 101.67 407.63 185.00 170.92 453.45 357.91 2.806 23 104.47 101.49 405.00 185.00.. 169.40. 450.35 354.85 2.607. 24 104.47 101.49 407.63 185.00 169.76 456.51 360.97. 2.609 25 103.95 101.32 405.00 185.00 168.23 453.40 357.91 2.810 26 103.42 101.14 405.00 185.00 167.07 456.45 360.97 2.815 27 105.00 101.67 407.63 185.00 171.37 451.81 356.38 2.828 28 105.00 101.67 405.00 185.00. '171.03 445.64 350.26 2.828 29 104.47 101.49 405.00 185.00 169.86 448.71 353.32 2.830 30 105.00 101.67. 410.26 185.00 171.74 457.97 362.50 2.830 31 104.47 101.49 407.63 185.00 170.21 454.87 .359.44 2.831 32 103.95 101.32 405.00 185.00 168.69 451.76 356.38 2.832 33 1.03.95 101.32 407.63 185.00 169.05 457.92 362.50 2.834 34 103.42 101.14 405.00 185.00 167.52 454.82 359.44 2.836 35 102.89 100.96 405.00 185.00 166.36 457.87 362.50 2.842 36 105.00 - 101.67. 407.63 185.00 171.83 450.16 354.85 2.851 37 105.00 101.67 405.00 185.00 171.48 444.00 348.72 2.852 38 104.47 101.49 405.00 185.00 170.31 447.06 351.79 2.852 39 105.00 101.67 410.26 185.00 172.19 456.33 360.97 2.853 40 104.47 101.49 407.63 185.00 170.66 453.23 357.91 2.853 41 103.95 101.32 405.00 185.00 169.15 450.12 354.85 2.854 42 103.95 101.32 407.63 185.00 169.50 456.28 360.97 2.856 43 105.00 101.67 405.00 185.00 171.94 442.35 347.19 2.857 44 103.42 101.14 405.00 185.00 167.98 453.18 357.91 2.658 45 102.89 100.96 405.00 185.00 166.81 456.23 .360.97 2.662. 46 105.00 101.67 407.63 185.00 172.28 448.52 353.32 2.865 47 104.47 101.49 405.00 185.00 170.77 445.41 350.26 2.868 48 105.00 101.67 410.26 185.00 172.64 454.68 359.44 2.874 49 104.47 101.49 407.63 185.00 171.12 451.58 356.38 2.875 50 104.47 101.49 407.63 185.00 171.57 449.94 354.85 2.876 51 104.47 101.49 410.26 185.00 171.48 457.74 362.50 2.877 52 103.95 101.32 405.00 185.00 169.60 448.48 353.32 2.877 53 103.95 101.32 407.63 185.00 169.96 454.64 359.44 2.877 54 103.95 101.32 405.00 185.00 170.06 446.83 351.79 2.879 55 103.42 101.14 405.00 185.00 168.44 451.54 356.38 2.879 56 103.42 101.14 407.63 185.00 168.80 457.70 362.50 2.881 57 102.89 100.96 405.00 185.00 167.27 454.59 359.44 2.883 58 105.00 101.67 405.00 185.00 172.40 440.70 345.66 2.883 59 104.47 101.49 410.26 185.00 171.93. 456.10 360.97 2.885 60 105.00 101.67 407.63 185.00 172.73 446.87 351.79 2.885 61 103.95 101.32. 407.63 185.00 170.41 453.00 357.91 2.887 62 104.47 101.49 405.00 185.00 171.23 443.77 348.72 2.887 63 105.00 101.67 410.26 185.00 173.09 453.04 357.91 2.889 64 102.37 100.79 405.00 185.00 166.10 457.64 362.50 2.889 65 103.42 101.14 405.00 185.00 168.89 449.90 354.85 2.891 66 103.42 101.14 407.63 185.00 169.25 456.06 360.97 2.898 67 105.00 101.67 405.00 185.00 172.86 439.04 344.13 2.898 68 105.00 101.67 407.63 185.00 173.19 445.22 350.26 2.900 69 104.47 101.49 405.00 185.00 171.69 442.12 347.19 2.902 70 102.89 100.96 405.00 185.00 167.72 452.95 357.91 2.903 71 105.00 101.67 410.26 185.00 173.54 451.39 356.38 2.903 72 104.47 101.49 407.63 185.00 172.02 448.29 353.32 2.904 73 103.95 101.32- 405.00. 185.00 170.52 445.19 350.26 2.906 74 105.00 101.67 412.89 185.00 173.90 457.56 362.50 2.907 75 104.47 101.49 410.26 185.00 172.38 454.46 359.44 2.907 76 103.95 101.32 407.63 185.00 170.86 451.36 356.38 2.908 77 102.37 100.79 405.00 185.00 166.56 456.01 360.97 2.909 78 102.89 100.96 407.63 185.00 168.54 457.47 362.50 2.911 79 103.42 101.14 405.00 185.00 169.35 448.25 353.32 2.911 80 103.95 101.32 410.26 185.00 171.22 457.52 362.50 2.912 81 105.00 101.67 405.00 185.00 173.32 437.39 342.60 2:913 82 103.42 101.14 407.63 185.00 169.70 454.42 359.44 2.914 83 105.00 101.67 407.63 185.00 173.64 - 443.57 348.72 2.914 64 102.37 100.79. 405.00: 185.00 167.01 454.37 359.44 2.916 85 104.47 101.49 405.00 185.00 172.15 440.47 345.66 2.916 86 105.00 101.67 410.26 185.00 173.99 449.74 354.85 2.917 87 102.89 100.96 405.00 185.00 168.18 451.31 356.38 2.917 88 104.47 101.49 407.63 185.00 172.48 446.64. 351.79 2.918 89 103.95 101.32 405.00 185.00 170.98 443.54 348.72 2.920 90 105.00 101.67 412.89 185.00 174.35 455.91 360.97 2.921 91 104.47 101.49 410.26 185.00 172.83 452.81 357.91 2.921 92 103.95 101.32 407.63 185.00 171.32 449.71 354.85 2.922 93 103.42 101.14 405.00 185.00 169.81 446.61 351.79 2.925 94 103.95 101.32 410.26 185.00 171.67 455.88 360.97 2.926 95 103.42 101.14 407.63 185.00 170.15 452.77 357.91 2.927 96 105.00 101.67 405.00 185.00 173.78 435.73 341.07 2.928 97 105.00 101.67 407.63 185.00 174.10 441.92 347.19 2.929 98 101.84 100.61 405.00 185.00 165.85 457.42 362.50 2.929 99 104.47 101.49 405.00 185.00 172.61 438.81 344.13 2.931 Critical Failure Surface (circle 1) Intersects: XL: 105,00 IL: 101.67 Centre: XC: 167.38 IC: 458.76 Generated failure surface: (20 points) 105.00 101.67 121.75 99,14 189.37 96.93 206.24 98.35 272.54 111.85 288.62 117.14 349.99 145.61 364.42 154.49 XR: 405.00 YR: 185.00 Radius: R: 362.50 138.59 223.03 304.45 378.42 97.40 100.56 123.17 164.02 Slice Geometry and Properties - Critical Failure Surface (circle 1, 44 slices) 155.50 239.70 319.97 391.95 96.45 103.55 129.94 174.20 172.44 256.22 335.17 405.00 96.29 107.31 137.43 185.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width- Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 7.40 -8.6 .53 5.59 2 0.00 35.0 924.93 25733.20 4689.31 1.05 2 110.53 22.20 -8.6 .53 5.59 2 0.00 35.0 2774.77 26023.96 4915.92 1.05 3 116.06 38.28 -8.6 .69 5.75 3 100.00 18.0 4824.63 27078.79 5148.98 1.03 4 121.75 83.77 -5.9 .42 8.47 3 100.00 18.0.. 10646.00 40314.71. 5416.27 1.02 5 130.17 114.75 -5.9 .42 8.47 3 100.00 18.0 14635.29 40774.19 5717.83 1.02 6 138.59 121.09 -3.2 .18 7.19 3 100.00 18.0 15458.22 34921.87 5964.76 1.01 7 145.78 196.05 -3.2 .73 9.74 4 2000.00 _20.0 25015.33 47587.25 .6252.10 1.01 8 155.50 198.99 -0.5 .47 .. 8.47 4 2000.00 20.0 25359.62 41526.66 6441.47 1.00 9 163.97 223.57 -0.5 .47 8.47 4 2000.00 20.0 28442.44 41568.75 6629.64 1.00 10 172.44 246.30 2.1 .46 8.47 4 2000.00 20.0 31267.78 41506.38 6741.90 1.00 11 180.90 267.50 2.1 .46 8.47 4 2000.00 20.0 33874.58 41339.36 6873.15 , 1.00. 12 189.37 286.18 4.8 .44 8.47 3 100.00 18.0 36139.26. 41068.55. 6990.40 0.99 13 197.80 303.91 4.8 .44 8.47 3 100.00 18.0 38260.38 40692.83 7065.01 Q.99 14 206.24 236.82 7.5 .28 6.34 3 100.00 18.0 29726.45 30140.70 7093.83 0.99 15 212.52 244.78 7.5 .28 6.34 3 100.00 18.0 30638.87 29814.16 7107.35 0.99 16 218.81 169.27 7.5 .23 4.27 2 0.00 35.0 21159.21 19887.38 7082.91 0.97 17 223.03 342.55 10.2 .34 8.47 2 0.00 35.0 42818.82 38942.54 7053.02 0.97 18 231.37 353.25 10.2 .34 8.47 2 0.00 35.0 44155.89 38152.51 7036.35 0.97 19 239.70 358.79 12.8 .26 8.47 2 0.00 35.0 44848.34 37259.93 6963.25 0.97 20 247.96 365.96 12.8 .26 8.47 2 0.00 35.0 45745.41 36264.98 6897.03 0.97 21 256.22 264.67 15.5 .89 6.11 2 0.00 35.0 33083.35 25513.89 6789.57 0.97 22 262.11 266.60 15.5 .89 6.11 2 0.00 35.0 33324.39 24889.47 6706.52 0.97 23 268.00 206.57 15.5 .54 4.71 2 0.00 35.0 25803.56 18737.01 6629.50 0.97 24 272.54 340.99 18.2 .46 7.86 2 0.00 35.0 . 42520.63 30362.70 6479.27 0.97 25 280.00 394.33 18.2 .62 9.08 2 0.00 35.0 49119.24 33586.27 6310.60 0.97 26 288.62 360.39 20.9 .91 8.47 2 0.00 35.0 44891.10 29779.35 6084.76 0.97 27 296.54 357.38 20.9 .91 8:47 2 0.00 35.0 44514.70 28184.57 5874.83 0.97 28 304.45 346.06 23.6 .76 8.47 2 0.00 35.0 43102.20 26493.21 5608.69 0.98 29 312.21 339.87 23.6 .76 8.47 2 0.00 35.0 42329.12 24704.88 5352.87 0.98 30 319.97 216.00 26.2 .03 5.60 2 0.00 35.0 26899.70 15318.91 5093.03 0.98 31 325.00 214.41 26.2 .08 5.67 2 0.00 35.0 26699.97 14616.02 4939.75 0.98 32 330.08 210.29 26.2 .08 5.67 2 0.00 35.0 26184.93 13730.15 4632.00 0.98 33 335.17 297.64 28.9 .41 8.47 2 0.00 35.0 37056.52 18772.97 4639.44 0.99 34 342.58 285.61 28.9 .41 8.47 2 0.00 35.0 35552.73 16609.69 4429.78 0.99 35 349.99 185.32 31.6 .01 5.88 2 0.00 35.0 23065.00 10213.57 4199.73 1.01 36 355.00 314.73 31.6 .42 11.06 2 0.00 35.0 39153.32 16154.65 3774.16 1.01 37 364.42 66.15 34.3 .22 2.69 2 0.00 35.0 8224.29 3316.14 3318.01 1.02 36 366.64 158.53 34.3 .87 7.10 6 50.00 16.0 19757.87 7536.57 3192.18 1.13 39 372.51 135.70 34.3 .90 7.14 2 0.00 35.0 16962.21 5789.01 2554.49 1.02 40 378.42 121.80 36.9 .58 8.24 2 0.00 35.0 15225.57 4370.41 2013.43 1.04 41 385.00 44.70 36.9 .00 3.75 5 0.00 45.0 4917.34 1147.92 1340.57 0.97 42 388.00 48.58 36.9 .95 4.95 2 0.00 35.0 6072.51 705.83 1301.66 1.04 43 391.95 52.84 39.6 .52 8.47 2 0.00 35.0r 6604.50 0.00 828.27 1.06 44 398.48 17.61 39.6 .52 8.47 2 0.00 35.0 2201.49 0.00 276.09 1.06 X -S Area: 9428.19 Path Leng h: 321.79 X -S Weight: 1179982.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 5 RD.gmf Processed: 30 Jul 2019 12:13:27 DATA: Analysis 1 - Case 5 - Rapid Draw Down Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 - Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi - UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 : 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00. 200.00 Profile: 2 (2 points) 0.00 152.00 Profile: 3 (2 points) 0.00 150.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 432.00 200.00 Profile: 7 (2 points) 435.00 200.00 Profile: 8 (2 points) 435.00 152.00 Profile: 9 (2 points) 435.00 150.00 Profile: 10 (2 points) 435.00 100.00 Profile: 11 (2 points) 432.00 . 97.00 - Overburden - Sand and Gravel - Weathered Bedrock - Stable - Slurry - Clay - Silt Bedrock Wall Unit weight of water/medium above ground: 62.400 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 435.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Slope Surface (4 points). 0.00 100.00 Phreatic Surface ('4 points) 100.00 0.00 Failure Surface 2 - Sand and Gravel 200.00 6-- Clay 152.00. 2 - Sand and Gravel 150.00 3 Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall: 200.00 2 - Sand and Gravel 200.00 6 Clay 152.00 2 - Sand and Gravel 150.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 100.00 100.00 370.00 400.00 200.00 190.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 460.00 YR: Centre: XC: 192.25 YC: 476.65 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: RESULTS: Analysis_ 1 - Case 5 Rapid Draw Down Bishop Simplified Method of Analysis Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.744 515.00 200.00 515.00 190.00 200.00 385.00 Analysis Summary • - There were: 20001 successful analyses from a total of -20001 trial -failure surfaces Critical (minimum) Factor of Safety: 1.60 Results Summary -Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 460.00 200.00 192.25 476.65 385.00 1.603 <-- Critical Surface 2 105.00 101.67- 460.00 200.00 193.00 473.96 382.55 1.603 3 105.00 101.67 460.00 200.00 192.87 474.41 382.96 1.604 4 105.00 101.67 460.00 200.00 192.75 474.86 383.37 1.604 5 105.00 101.67 460.00 200.00 192.37 - 476.20 384.59 1.604 6 105.00 101.67 460.00 200.00 192.62 475.31 383.78 1.605 7 105.00 101.67 460.00 200.00 192.50 475.75 384.18 1.605 8 104.47 101.49 460.00 200.00 192.25 475.51 384.18 1.608 9 104.47 101.49 460.00 200.00 192.13 475.96 384.59 1.609 10 104.47 101.49 460.00 200.00 192.00 476.41 385.00 1.609 11 105.00 101.67 460.00 200.00 193.12 473.51 362.14 1.611 12 105.00 101.67 460.00 200.00 193.24 473.06 381.73 1.612 13 105.00 101.67 460.00 200.00 193.37 472.61 381.33 1.613 14 105.00 101.67 460.00 200.00 193.49 472.16 380.92 1.614 15 105.00 101.67 460.00 200.00 193.62 471.71 380.51 1.615 16 104.47 101.49 460.00 200.00 192.37 475.06 383.78 1.615 17 105.00 101.67 460.00 200.00 193.74 471.26 380.10 1.616 18 104.47 101.49 460.00 200.00 192.50 474.62 383.37 1.616 19 105.00 101.67 460.00 200.00 193.87 470.81 379.69 1.616 20 104.47 101.49 460.00 200.00 192.62 474.17 382.96 1_617 21 105.00 101.67 460.00 200.00 193.99 470.36 379.29 1.617 22 104.47 101.49 460.00 200.00 192.75 473.72 382.55 1.618 23 105.00 101.67 461.58 200.0O 193.52 476.35 385.00 1.618 24 105.00 101.67 460.00 200.00 194.12 469.91 378.88 1.619 25 104.47 101.49 460.00 200.00 192.87 473.27 382.14 1.619 26 105.00 101.67 461.58 200.00 193.65 475.90 384.59 1.619 27 105.00 101.67 460.00 200.00 194.24 469.46 378.47 1.620 28 104.47 101.49 460.00 200.00 193.00 472.82 381.73 1.620 29 105.00 101.67 461.58 200.00 193.77 475.45 384.18 1.620 30 104.47 101.49 460.00 200.00 193.12 472.37 381.33 1.621 31 105.00 101.67 460.00 200.00 194.37 469.01 378.06 1.621 32 105.00 101.67 461.58 200.00 193.89 475.01 383.78 1.621 33 104.47 101.49 460.00 200.00 193.25 471.92 380.92 1.622 34 105.00 101.67 460.00 200.00 194.49 468.56 377.65 1.622 35 104.47 101.49 460.00 200.00 193.37 471.47 380.51 1.622 36 105.00 101.67 461.58 200.00 194.02 474.56 383.37 1.623 37 105.00 101.67 460.00 200.0O 194.62 468.11 377.24 1.623 38 104.47 101.49 460.00 200.00 193.50 471.02 380.10 1.623 39 105.00 101.67 461.58 200.00 194.14 474.11 382.96 1.624 40 105.00 101.67 460.00 200.00 194.74 -467.66 376.84 1.624 41 104.47 101.49 460.00 200.00 193.62 470.57 379.69 1.624 42 105.00 101.67 461.58 200.00 194.26 473.66 382.55 1.625 43 105.00 101.67 461.58 200.00 194.76 471.86 380.92 1.625 44 105.00 101.67 460.00 200.00 194.86 467.21 376.43 1.625 45 105.00 101.67 463.16 200.00 194.79 476.05 385.00 1.625. 46 104.47 101.49 460.00 200.00 193.74 470.12 379.29 1.625 47 105.00 101.67 461.58 200.00 194.39 473.21 382.14 1.626 48 105.00 101.67 461.58 200.00 194.88 471.41 380.51 1.626 49 105.00 101.67 460.00 200.0O 194.99 466.76 376.02 1.626 50 105.00 101.67 463.16 200.00 194.91 475.60 384.59 1..626 51 104.47 101.49 461.58 200.00 193.27 476.11 385.00 1.626 52 104.47 101.49 460.00 200.00 193.87 469.67 378.88 1.627 53 105.00 101.67 461.58 200.00 194.51 472.76 381.73 1.627 54 103.95 101.32 460.00 200.00 191.75 476.17 385.00 1.627 55 105.00 101.67 461.58 200.00 195.01 470.96 380.10 1.627 56 105.00 101.67 463.16 200.00 195.04 475.15 384.18 1.627 57 103.95 101.32 460.00 200.00 191.88 475.72 384.59 1.627 58 105.00 101.67 460.00 200.00 195.11 466.31 375.61 1.627 59 104.47 101.49 461.58 200.00 193.40 475.66 384.59 1.627 60 105.00 101.67 461.58 200.00 195.13 470.51 379.69 1.628 61 103.95 101.32 460.00 200.00 192.00 475.27 384.18 1.628 62 105.00 101.67 461.58 200.00 194.64 472.31 381.33 1.628 63 105.00 101.67 463.16 200.00 195.16 474.70 383.78 1.628 64 103.95 101.32 460.00 200.00 192.13 474.82 383.78 1.628 65 105.00 101.67 460.00 200.00 195.24 465.86 375.20 1.629 66 104.47 101.49 461.58 200.00 193.52 475.21 384.18 1.629 67 105.00 101.67 461.58 200.00 195.26 470.06 379.29 1.629 68 103.95 101.32 460.00 200.00 192.25 474.37 383.37 1.629 69 103.42 101.14 460.00 200.00 191.51 475.93 385.00 1.629 70 105.00 101.67 463.16 200.00 195.28 474.25 363.37 1.629 71 103.95 101.32 460.00 200.00 192.38 473.93 382.96 1.629 72 103.42 101.14 460.00 200.00 191.63 : 475.48 384.59 1.629 73 104.47 101.49 461.58 200.00 193.64 474.76 383.78 1.630 74 105.00 101.67 460.00 200.00 195.36 465.41 374.60 1.630 75 105.00 101.67 461.58 200.00 195.38 469.61 378.88 1.63O 76 105.00 101.67 463.16 200.00 195.41 473.80 382.96 1.630 77 103.95 101.32 460.00 200.00 192.50 473.48 382.55 1.630 78 103.42 101.14 460.00 200.00 191.76 475.03 384.18 1.630 79 103.95, 101.32 460.00 200.00 192.63 473.03 382.14 1.631 B0 105.00 101.67 461.58 200.00 195.51 469.15 378.47 1.631 81 104.47 101.49 461.58 200.00 193.77 474.31 383.37 1.631 62 105.00 101.67 460.00 200.00 195.49 464.95 374.39 1.631 83 105.00 101.67 463.16 : 200.00 195.53 473.35 382.55 1.631 64 103.42. 101.14 460.00 200.00 191.88 474.58 383.78 1.631 85 10447 101.49 461.58 200.00 194.26 472.52 381.73 1.631 66 103.95 101.32 460.00 200.00 192.75 472.58 381.73 1.631 67 105.00 101.67 461.58 200.00 195.63 .468.70 :378.06 1.632 88 103.95 101.32 460.00 200.00 192.87 472.13. 381.33. 1.632 69 -103.42 101.14 460.00 200.00 192.00 474.13 383.37 1.632 90 104.47 101.49 461.58. 200.00 193.89 473.86 382.96 1.632 91 105.00 101.67 463.16 200.00 195.65 472.90 382.14 1.632 92 105.00 101.67 460.00 200.00 195.62 464.50 373.98 1.632 93 103.95 101.32 460.00 200.00 193.00 471.68 :380.92 1.632 94 105.00 101.67 461.58 200.00 195.76 468.25 377.65 1.632 95 103.42 101.14 460.00 200.00 192.13 473.68 382.96 1.632 96 105.00 101.67 463.16 200.00. 195.78 472.45 381.73 1.633 97 103.95 101.32 460.00 200.00 193.12 471.23 380.51 1.633 98 104.47 101.49 461.58 200.00 194.02 473.42 .382.55 1..633 99 105.00 101.67 460.00 200.00 195.74 464.05 .373.57 1.633 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 460.00 YR: 200.00 Centre: IC: 192.25 YC: 476.65 Radius: R: 385.00 Generated failure surface: (20 points) 105.00 101.67- 124.60 97.60' - 144.79 94.59 164.91 92.62 185.10 91.72 205.31 91.87 225.49 93.09 245.57 95.36 265.51 98.68 285.25 103.05 304.73 108.45 323.90 114.86 342.71 122.27 361.10 130.65 379.02 139.99 396.44 150.26 - 413.29 161.42 - 429.53 173.46 445.11 186.33 460.00 200.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 17.77 -11.6 - 8.12 8.29 2 0.00 35.0 2221.06 1131.85 286.88 1.12 2 113.12 87.80 -11.6 11.68 11.92 3 100.00 16.0 11198.69 5592.77 993.60 1.07 3 124.80 46.55 -8.6 4.00 4.05 3 100.00 16.0 5991.65 2937.71 1531.22 1.04 4 128.80 116.18 -8.6 7.99 8.08 4 2000.00 20.0 - - 14983.68 7331.98 2104.09 1.05 5 136.80 147.12 -8.6 7.99 8.08 4 2000.00 20.0 19005.25 9284.40 2616.54 1.05 6 144.79 226.43 -5.6 10.06 10.11 4 2000.00 20.0 29253.83 14196.33 3066.93 1.03 7 154.85 - 270.04 -5.6 10.06 10.11 4 2000.00 20.0 34862.79 16930.35 -3631.06 .1.03 6 164.91 312.21 -2.6 10.10 10.11 4 2000.00 20.0 40254.52 19501.42 4064.67 1.01 9 175.00 350.76 -2.6 10.10 10.11 4 2000.00 20.0 45146.82 21909.55 4551.75 .1.01 10 185.10 387.03 0.4 ' 10.11 10.11 4 2000.00 20.0 49712.54 24151.66 4904.91. 1.00 11 195.21 420.30 0.4 10.11 10.11 4 2000.00 20.0 -. 53857.84 26227.32 5314.72 1.00 12 205.31 450.04 3.4 10.09 10.11 4 2000.00 20.0 57518.30 -28133.59 5587.89 0.99 13 215.40 477.83 3.4 10.09 10..11 4 2000.00 20.0 60894.21 29870.97 5920.33 0.99 14 225.49 -500.60 6.5 10.04 10.11 4 2000.00 20.0 63594.44 31436.85 6114.12 0.98 15 235.-53 522.80 6.5 10.04 10..11 4 2000.00 20.0 66187.30 32831.22 6369.29 0.98 16 24557 236.94 9.5 4.43 449 4 2000.00 20.0 29920.29 14989.32 6434.82 0.98 17 250.00 293.93 9.5 . 5.41 5.48 4 2000.00 20.0 37014.93 18594.13 6518.38 0.98 18 255.41 562.25 9.5 10.10 10.24 3 100.00 18.0 70528.52 35568.42 6855.35 0.98 19 265.51 337.85 12.5 5.95 6.09 3 100.00 16.0 42234.45 21591.57 6937.09 0.98 20 271.46 396.74 12.5 6.90 7.06 2 0.00 35.0 49523.93 25355.29 6865.94 0.93 21 278.35 402.07 12.5 6.90 7.06 2 0.00 35.0 50190.21 25695.94 6958.30 0.93 22 285.25 574.40 15.5 9.74 10.11 2 0.00 35.0 71702.17 37191.97 6964.30 0.93 23 294.99 579.74 15.5 9.74 10.11 2 0.00 35.0 72370.23 37538.04 7029.19 0.93 24 304.73 573.10 18.5 9.58 10.11 2 0.00 35.0 71541.26 37707.97 6988.14 0.92 25 314.31 573.00 18.5 9.58 10.11 - 2 0.00 35.0 71528.77 37701.40 6986.92 0.92 26 323.90 559.42 21.5 9.40 10.11 2 0.00 35.0 69833.55 37518.35 6881.15 0.92 27 333.30 554.06 21.5 9.40 10.11 2 0.00 35.0 69163.85 37159.04 6815.19 0.92 28 342.71 534.05 24.5 9.20 10.11 2 - 0.00 - 35.0 66663.69 36624.18 6647.10 0.92 29 351.90 523.68 24.5 9.20 10.11 . 2 0.00 35.0 65367.83. 35913.22- 6517.92 0.92 30 361.10 494.50 27.5 8.90 10.04 2 0.00 35.0 61723.77. 34792.81 6290.73 0.92 31 370.00 486.10 27.5 9.02 10.18 2 0.00 35.0 60672.63 33246.82 6082.65 0.92 32 379.02 440.85 30.5 8.49 9.65 2 0.00 35.0 55020.82 29214.82 .5761.17 0.92 33 38751 422.38 30.5 8.49 9.65 2 0.00 35.0 52712.26 26136.87 5480.94 0.92 34 396.00 147.75 33.1 3.07 3.66 6 50.00 16.0 18453.12 8911.58 5626.43 1.07 35 399.07 324.47 33.5 7.11 8.53 2 0.00 35.0 40559.09 18968.32 4924.07 0.93 36 406.18 290.98 33.5 7.11 8.53 2 0.00 35.0 36372.81 16461.26 - 4401.38 0.93 37 413.29 • 288.82 36.5 8.12 10.11 2 0.00 35.0 36101.96 16125.18 3749.05 0.94 38 42141 239.95 36.5 8.12 10.11 2 0.00 35.0 29994.22 12330.15 3088.95 0.94 39 429.53 63.15 39.6 2.47 3.21 2 0.00 35.0 7893.99 3108.13 2601.19 0.95 40 43200 69.78 39.6 3.00 .3.89 5 0.00 45.0 7675.83 3219.31 1970.04 0.86 41 435.00 180.45 39.6 10.11 13.11 2 0.00 35.0 22556.32 6420.50 1769.24 0.95 42 445.11 47.32 42.6 4.00 5.43 2 0.00 35.0 5914.99 621.72 1088.75 0.97 43 449.11 54.45 42.6 10.89 14.79 2 0.00 35.0 6806.56 0.00 446:10 0.97 X -S Area: 14585.65 Path Length: 384.05 X -S Weight: 1834725.38 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 5 Full.gmf Processed: 30 Jul 2019 13:47:03] DATA: Analysis 1 - Case 5 — Full Reservoir Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion - Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 200.00 Profile: 2 (2 points) 0.00 152.00 Profile: 3 (2 points) 0.00 150.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 432.00 200.00 Profile: 7 (2 points) 435.00 200.00 Profile: 8 (2 points) 435.00 152.00 Profile: 9 (2 points) 435.00 150.00 Profile: 10 (2 points) 435.00 100.00 Profile: 11 (2 points) 432.00 97.00 - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 432.00. Material beneath: 432.00 Material beneath: 432.00 Material beneath: • 435.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00. 2 - Sand and Gravel 200.00 6 - Clay 152.00 2 - Sand and Gravel 150.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6-- Clay 152.00 2 - Sand and Gravel 150.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 Slope Surface (4 points) 0.00 100.00 100.00 100.00 400.00 200.00 Phreatic Surface (4 points) 0.00 190.00 Failure Surface 100.00 190.00 370.00 190.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 460.00 Centre: XC: 187.72 YC: 493.02 Radius: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 30.00 20 R 50.00 50 RESULTS: Analysis 1 - Case 5 Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.256 YR: R: 515.00 200.00 515.00 190.00 200.00 400.00 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.96 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 460.00 200.00 167.72 493.02 400.00 2.963 <-- Critical Surface 2 105.00 101.67 460.00 200.00 188.02 491.91 398.98 2.970 3 105.00 101.67 460.00 200.00 188.64 489.69 396.94 2.972 4 105.00 101.67 460.00 200.00 188.33 490.80 397.96 2.973 5 104.47 101.49 460.00 200.00 187.77 491.68 398.98 2.980 6 105.00 101.67 461.58 200.00 189.00 492.75 400.00 2.981 7 104.47 101.49 460.00 200.00 187.46 492.79 400.00 2.981 8 105.00 101.67 460.00 200.00 189.25 487.47 394.90 2.983 9 105.00 101.67 460.00 200.00 188.94 488.58 395.92 2.985 10 105.00 101.67 460.00 200.00 189.56 486.36 393.88 2.991 11 105.00 101.67 461.58 200.00 189.61 490.53 397.96 2.992 12 104.47 101.49 460.00 200.00 188.08 490.57 397.96 2.993 13 105.00 101.67 460.00 200.00 190.49 483.02 390.82 2.995 14 105.00 101.67 461.58 200.00 189.31 491.64 398.98 2.995. 15 105.00 101.67 460.00 200.00 190.18 484.13 391.84 2.996 16 105.00 101.67 463.16 200.00 190.89 490.25 397.96 2.997 17 105.00 101.67 463.16 200.00 190.59 491.36 398.98 2.997 18 104.47 101.49 460.00 200.0D 188.69 488.35 395.92 2.998 19 105.00 101.67 460.00 200.00 189.87 485.25 392.86 2.998 20 104.47 101.49 460.00 200.00 188.39 489.46 396.94 2.998 21 105.00 101.67 461.58 200.00 190.53 487.19 394.90 2.999 22 105.00 101.67 461.58 200.00 189.92 489.42 396.94 3.000 23 104.47 101.49 461.58 200.00 188.75 492.51. 400.00 3.000 24 105.00 101.67 463.16 200.00 190.28 492.47 400.00 3.000 25 103.95 101.32 460.00 200.00 187.21 492.55 400.00 3.001 26 104.47 101.49 460.00 200.00 189.93 463.90 391.84 3.003 27 104.47 101.49 460.00 200.00 189.31 486.12 393.88 3.004 28 104.47 101.49 460.00 200.00 189.62 485.01 392.86 3.005 29 104.47 101.49 460.00 200.00 189.00 487.24 394.90 3.005 30 103.95 101.32 460.00 200.00 187.83 490.33 397.96 3.005 31 104.47 101.49 463.16 200.00 190.03 492.23 400.00 3.006 32 103.95 101.32 460.00 200.00 167.52 491.44 398.98 3.006 33 105.00 101.67 460.00 20,0.00 190.80 481.90 389.80 3.006 34 105.00 101.67 461.58 200.00 190.23 488.30 395.92 3.007 35 104.47 101.49 461.58 200.00 189.05 491.40 398.98 3.007 36 104.47 101.49 461.58 200.00 189.97 488.07 395.92 3.008 37 105.00 101.67 461.58 200.00 190.84 486.08 393.88 3.010 38 104.47 101.49 _ 461.58 200.00 169.67 489.18 396.94 3.010 39 105.00 101.67 460.00 200.00 191.10 480.79 388.78 3.011 40 103.95 101.32 460.00 200.00 188.44 488.11 395.92 3.012 41 103.95 101.32 460.00 200.00 188.14 489.22 396.94 3.013 42 105.00 101.67 _ 463.16 200.00 191.20 489.13 396.94 3.013 43 105.00 101.67 464.74 200.00 191.56 492.19 400.00 3.013 44 103.42 101.14 460.00 200.00 166.96 492.32 400.00 3.013 45 103.95 101.32 460.00 200.00 189.06 485.89 393.88 3.014 46 104.47 101.49 461.58 200.00 189.36 490.29 397.96 3.014 47 105.00 101.67 461.58 200.00 191.15 484.96 392.86 3.015 48 103.95 101.32 460.00 200.00 188.75 487.00 394.90 3.015 49 105.00 101.67 460.00 200.00 191.41 479.67 387.76 3.016 50 103.95 101.32 461.58 200.00 188.50 492.28 400.00 3.017 51 105.00 101.67 464.74 200.00 192.17 469.96 397.96 3.018 52 105.00 101.67 464.74 200.00 191.86 491.08 398.98 3.018 53 104.47 101.49 460.00 200.00 190.24 482.78 390.82 3.018 54 105.00 101.67 463.16 200.00 191.50 468.02 395.92 3.018 55 104.47 101.49 463.16 200.00 190.33 491.12 398.98 3.019 56 103.95 101.32 461.58 200.00 189.11 490.06 397.96 3.019 57 105.00 101.67 461.58 200.00 191.45 483.85 391.84 3.019 58 103.42 101.14 460.00 200.00 187.58 490.10 397.96 3.020 59 103.42 101.14 460.00 200.00 187.27 491.21 398.98 3.020 60 103.95 101.32 461.56 200.00 188.80 491.17 398.98 3.021 61 105.00 101.67 460.00 200.00 191.72 476.55 366.73 3.021 62 104.47 101.49 461.58 200.00 190.26 486.95 394.90 3.022 63 105.00 101.67 464.74 200.00 192.47 488.85 396.94 3.022 64 103.42 101.14 460.00 200.00 186.50 486.76 394.90 3.023 65 104.47 101.49 460.00 200.00 190.55 481.67 389.80 3.023 66 103.42 101.14 461.58 200.00 188.55 490.93 398.98 3.023 67 105.00 101.67 461.58 200.00 191.76 482.73 390.82 3.024 68 103.42 101.14 460.00 200.00 167.89 486.99 396.94 3.024 69 105.00 101.67 463.16 200.00 191.81 486.90 394.90 3.024 70 104.47 101.49 463.16 200.00 190.64 490.01 397.96 3.024 71 103.42 101.14 460.00 200.00 188.19 487.88 395.92 3.024 72 103.42 101.14 461.58 200.00 188.25 492.04 400.00 3.025 73 103.95 101.32 460.00 200.00 189.37 484.77 392.86 3.025 74 105.00 101.67 460.00 200.00 192.03 477.43 385.71 3.026 75 104.47 101.49 461.58 200.00 190.59 485.84 393.86 3.026 76 105.00 101.67 466.32 200.00 193.44 469.67 397.96 3.027 77 105.00 101.67 464.74 200.00 193.08 486.62 394.90 3.027 78 105.00 101.67 464.74 200.00 192.78 487.73 395.92 3.027 79 104.47 101.49 460.00 200.00 190.86 480.55 388.78 3.027 80 102.89 100.96 460.00 200.00 186.71 492.08 400.00 3.028 81 105.00 101.67 461.58 200.00 192.07 481.61 389.80 .3.029 82 103.95 101.32 461.58 200.00 189.42 488.94 396.94 3.029 83 105.00 101.67 466.32 200.00 193.14 490.79 398.98 3.029 84 105.00 101.67 466.32 200.00 192.83 491.90 400.00 3.029 85 104.47 101.49 464.74 200.00 191.31 491.95 400.00 3.030 86 105.00 101.67 463.16 200.00 192.12 485.79 393.88 3.030 87 104.47 101.49 463.16 200.00 190.95 488.90 396.94 3.030 88 103.95 : 101.32 460.00 200.00 189.68 483.66 391.84 3.030 69 105.00 101.67 460.00 200.00 192.96 474.07 382.65 3.030 90 105.00 101.67 460.00. 200.00 192.34 476.31 384.69 3.031 91 103.95 101.32 463.16 200.00 189.78 492.00 400.00 3.031 92 104.47 101.49 461.58 200.00 190.90 484.72 392.86 3.031 93 105.00 101.67 463.16 200.00 193.04 482.44 390.82 3.031 94 105.00 101.67 460.00 200.00 192.65 475.19 383.67 3.032 95 104.47 : 101.49 460.00 200.00 191.17 479.43 387.76 3.032 96 103.95 101.32 : 461.58 200.00 189.72. 487.83. 395.92 3.034 97 104.47 101.49 464.74 200.00 191.61 490.84 398.98 3.034 98 105.00 101.67. 461.58 200.00 192.38 480.50 388.78 3.034 99 103.95 101.32 460.00 200.00 189.99 482.54 390.82 3.034 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 460.00 YR: 200.00 Centre: XC: 187.72 YC: 493.02 Radius: R: 400.00 Generated failure surface: (20 points) 105.00 101.67 124.81 98.00 144.78 95.33 164.86 93.67 184.99 93.03 205.13 93.40 225.23 94.78 245.23 97.18 265.09 100.58 284.75 104.97. 304.17 110.35 323.29 116.70 342.06 124.00 360.45 132.24 378.39 141.39 395.85 151.44 412.79 162.35 429.15 174.10 444.90 186.66 460.00 200.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi - Weight Force Stress Factor 1 105.00 21.00 -10.5 9.00 9.15 2 0.00 35.0 2625.08 50928.40 5716.75 1.06 2 114.00 80.73 -10.5 10.81 10.99 3 100.00 18.0 10264.66 62421.75 6178.43 1.04 3 124.81 89.85 -7.6 - 7.48 7.54 3 - 100.00 18.0 11530.83 43542.52 6580.66 1.02 4 132.29 95.06 -7.6 6.25 6.30 4 2000.00 20.0 12223.80 36730.18 6945.10 1.03 5 138.53 113.27 -7.6 6.25 6.30 4 2000.00 20.0 14583.47 37057.98 7196.27 1.03 6 144.78 217.65 -4.7 10.04 10.07 4 2000.00 20.0 - 28022.81- 59763.69 7442.73 1.01 7 154.82 259.56-4.7 10.04 10.07 4 2000.00 20.0 33394.91 60284.68 7771.87 1.01 B 164.86 299.85 -1.8 10.07 10.07 4 2000.00 20.0 38525.51 60646.40 8018.40 1.00 9 174.92 336.88 -1.8 10.07 10.07. 4 2000.00 20.0 43206.20 60848.85 8274.85 1.00 10 184.99 371.49 1.1 10.07 10.07 4 2000.00 20.0 47543.95 60892.01 8446.42 1.00 11 195.06 .403.43 1.1 10.07 10.07 4 2000.00 20.0 51507.34 60775.6-9 8630.04 1.00 12 205.13 431.84 3.9 10.05 10.07 - 4 2000.00 20.0 54985.45 60500.16 8726.91 0.99 13 215.18 458.55 3.9 10.05 10.07 4 2000.00 20.0 58212.71 60065.19 8837.75 0.99 14 225.23 443.91 6.8 9.26 9.32 4 2000.00 20.0 56178.77 55075.99 8658.90 0.99 15 234.49 462.22 6.8 9.26 9.32 4 2000.00 20.0 58303.68 54431.35 8894.32 0.99 16 243.75 75.96 6.8 1.49 1.50 3 100.00 18.0 9563.72 8683.51 8995.48 0.99 17 245.23 246.01 9.7 4.77 4.64 3 100.00 18.0 30935.35 27882.14 8970.78 1.00 18 250.00 314.96 9.7 6.00 6.09 3 100.00 18.0 39483.18 34752.95 8947.58 1.00 19 256.00 305.99 9.7 5.73 5.81 3 100.00 18.0 38236.26 32798.80 8922.75 1.00 20 261.73 182.37 9.7 3.37 3.41 2 0.00 35.0 22762.76 19116.50 8848.34 0.98 21 265.09 540.62 12.6 9.83 10.07 2 0.00 35.0 67479.02 55516.82 8771.99 0.97 22 274.92 551.24 12.6 9.83 10.07 2 0.00 35.0 68806.43 54136.23 8699.13 0.97 23 284.75 552.23 15.5 9.71 10.07 2 0.00 35.0 68931.85. 52600.61. 8555.02 0.97 24 294.46 557.54 15.5 9.71 10.07 2 0.00 35.0 69595.68 50910.68 8419.36 0.97 25 304.17 551.73 18.4 9.56 10.07 2 0.00 35.0 68870.82 49067.98 8212.07 0.98 26 313.73 551.85 18.4 9.56 10.07 2 0.00 35.0 68885.55 47072.80 8014.71 0.98 27 323.29 539.53 21.3 9.39 10.07 2 0.00 35.0 67347.38 44927.66 7745.96 0.98 28 332.67 534.63 21.3 9.39 10.07 2 0.00 35.0 66734.50 42632.52 7488.16 0.98 29 342.06 516.23 24.1 9.19 10.07 2 0.00 35.0 64436.57 40190.33 7159.86 0.99 30 351.25 506.52 24.1 9.19 10.07 2 0.00 35.0 63223.54 37600.88 6843.05 0.99 31 360.45 513.38 27.0 9.55 10.73 2 0.00 35.0 64077.46 37028.12 6445.17 1.00 32 370.00 437.58 27.0 8.39 9.42 2 0.00 35.0 54614.15 29830.54 6148.82 1.00 33 378.39 377.79 29.9 7.48 8.63 2 0.00 35.0 47148.99 25019.15 5895.10 1.02 34 385.87 364.25 29.9 7.48 8.63 2 0.00 35.0 45456.18 22701.24 5663.76 1.02 35 393.35 118.71 29.9 2.50 2.88 6 50.00 16.0 14822.47 7069.73 5736.22 1.09 36 395.85 192.95 32.8 4.15 4.93 2 0.00 35.0 24119.36 11458.47 5355.04 1.03 37 400.00 280.24 32.8 6.39 7.61 2 0.00 35.0 35029.92 16056.95 5033.58 1.03 38 406.39 253.89 32.8 6.39 7.61 2 0.00 35.0 31736.70 14101.20 4552.63 1.03 39 412.79 283.99 35.7 8.18 10.07 2 0.00 35.0 35499.17 15532.13 3933.07 1.05 40 420.97 235.92 35.7 8.18 10.07 2 0.00 35.0 29490.16 11839.01 3251.98 1.05 41 429.15 70.55 38.6 2.85 3.64 2 0.00 35.0 8818.42 3356.60 2750.45 1.08 42 432.00 67.29 38.6 3.00 3.84 5 0.00 45.0 7401.73 2976.04 2108.50 1.01 43 435.00 171.16 38.6 9.90 12.66 2 0.00 35.0 21394.39 5757.36 1890.12 1.08 44 444.90 44.08 41.5 3.78 5.04 2 0.00 35.0 5510.31 524.86 1224.65 1.10 45 448.68 56.60 41.5 11.32 15.10 2 0.00 35.0 7075.19 0.00 517.05 1.10 X -S Area: 14081.07 Path Length: 382.77 X -S Weight: 1768596.38 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 6 RD.gmf Processed: 30 Jul 2019 14:36:59 DATA: Analysis 1 - Case 6 — Rapid Draw Down Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 35.0 - 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 180.00 Profile: 2-(2 points) 0.00 153.00 Profile: 3 (2 points) 0.00 150.00 Profile: 4 (2 points) 0.00 145.00 Profile: 5 (2 points) 0.00 127.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 402.00 180.00 Profile: 9 (2 points) 405.00 180.00 Profile: 10 (2 points) 405.00 153.00 Profile: 11 (2 points) 405.00 150.00 Profile: 12 (2 points) 405.00 145.00 Profile: 13 (2 points) 405.00 127.00 Profile: 14 (2 points) 405.00 100.00 Profile: 15 (2 points) 402.00 97.00 Slope Surface (4 points) Material beneath: 2 - Sand and Gravel 402.00 180.00 Material beneath: 6 - Clay 402.00 153.00 Material beneath: 2 - Sand and Gravel 402.00 150.00 Material beneath: 6 - Clay 402.00 145.00 Material beneath: 2-- Sand and Gravel 402.00 127.00 Material beneath: 3 - Weathered Bedrock 402.00 100.00 Material beneath: 4 Stable Bedrock 402.00 97.00 Material beneath: 5 - Slurry. Wall 405.0D 180.00 Material beneath: 2 - Sand and Gravel 500.00 180.00 Material beneath: 6 - Clay 500.00 153.00 Material beneath: 2 Sand and Gravel 500.00 150.00 Material beneath: 6 - Clay 500.00 145.00 Material beneath: 2 - Sand and Gravel 500.00 127.00 Material beneath: 3 - Weathered Bedrock 500.00 100.00 Material beneath: 4 - Stable Bedrock 500.00 97.00 0.00 100.00 Phreatic Surface (4 points) 100.00 0.00 Failure Surface 130.00 100.00 370.00 180.00 130.00 100.00 346.00 172.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 135.0D YL: 101.67 XR: 435.00 YR: Centre: XC: 205.72 YC: 444.45 Radius: R: Variable Restraints Parameter descriptor: XL Range of variation: 10.00 Trial positions within range: 20 XR 60.00 20 50.00 50 500.00 180.00 500.00 172.00 180.00 350.00 RESULTS: Analysis 1 - Case 6 - Rapid Draw Down Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.001 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.56 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 135.00 101.67 435.00 180.00 205.72 444.45 350.00 1.557 <-- Critical Surface 2 135.00 101.67 435.00 160.00 206.01 443.35 348.98 1.563 3 135.00 101.67 435.00 180.00 206.30 442.24 347.96 1.569 4 134.47 101.49 435.00 180.00 205.46 444.22 350.00 1.576 5 135.00 101.67 435.00 180.00 206.59 441.14 346.94 1.576 6 134.47 101.49 435.00 180.00 205.75 443.12 348.98 1.583 7 135.00 101.67 435.00 180.00 206.87 440.04 345.92 1.585 8 135.00 101.67 435.00 180.00 207.16 438.93 344.90 1.589 9 134.47 101.49 435.00 180.00 206.03 442.01 347.96 1.591 10 135.00 101.67 435.00 180.00 207.74 436.72 342.86 1.593 11 135.00 101.67 435.00 180.00 207.45 437.83 343.88 1.593 12 134.47 101.49 435.00 180.00 206.32 440.91 346.94 1.595 13 133.95 101.32 435.00 180.00 205.19 443.99 350.00 1.598 14 134.47 101.49 435.00 180.00 206.90 438.70 344.90 1.598 15 134.47 101.49 435.00 180.00 206.61 439.80 345.92 1.598 16 133.95 101.32 435.00 180.00 205.48 442.88 348.98 1.602 17 133.95 101.32 435.00 180.00 206.06 440.68 346.94 1.604 18 133.95 101.32 435.00 180.00 205.77 441.78 347.96 1.604 19 135.00 101.67 435.0D 180.00 208.03 435.61 341.84 1.604 20 135.00 101.67 438.16 180.00 208.27 443.91 350.00 1.605 21 134.47 101.49 435.00 180.00 207.19 437.59 343.88 1.610 22 133.42 101.14 435.00 180.00 204.93 443.76 350.00 1.610 23 135.00 101.67 435.00 180.00 208.32 434.50 340.82 1.612 24 135.00 101.67 438.16 180.00 208.55 442.81 348.98 1.613 25 133.95 101.32 435.00 180.00 206.35 439.57 345.92 1.616 26 135.00 101.67 435.00 180.00 208.61 433.39 339.80 1.617 27 134.47 101.49 435.00 180.00 207.48 436.49 342.86 1.617 28 133.42 101.14 435.00 180.00 205.22 442.65 348.98 1.618 29 133.95 101.32 435.00 180.00 206.64 438.47 344.90 1.620 30 135.00 101.67 438.16 180.00 208.64 441.70 347.96 1.621 31 135.00 101.67 435.00 180.00 208.90 432.28 338.78 1.621 32 133.42 101.14 435.00 180.00 205.51 441.55 347.96 1.622 33 134.47 101.49 435.00 180.00 207.77 435.38 341.84 1.622 34 134.47 101.49 438.16 180.00 208.00 443.68 350.00 1.623 35 135.00 101.67 438.16 180.00 209.12 440.59 346.94 1.626 36 135.00 101.67 435.00 180.00 209.19 431.17 337.76 1.626 37 133.42 101.14 435.00 180.00 205.80 440.45 346.94 1.626 38 134.47 101.49 435.00 180.00 208.06 434.27 340.82 1.627 39 133.95 101.32 435.0D 180.00 206.93 437.36 343.88 1.628 40 132.89 100.96 435.00 180.00 204.67 443.53 350.00 1.629 41 135.00 101.67 438.16 180.00 209.41 439.49 345.92 1.631 42 135.00 101.67 435.00 180.00 209.48 430.06 336.73 1.631 43 134.47 101.49 438.16 180.00 208.29 442.58 348.98 1.631 44 134.47 101.49 435.00 180.00 208.35 433.16 339.80 1.631 45 133.95 101.32 435.00 180.00 207.22 436.25 342.86 1.632 46 132.89 100.96 435.00 180.00 204.96 442.42 348.98 1.633 47 133.42 101.14 435.00 180.00 206.09 439.34 345.92 1.634 48 135.00 101.67 435.00 180.00 209.77 428.95 335.71 1.636 49 135.00 101.67 436.16 180.00 209.70 438.38 344.90 1.636 50 134.47 101.49 435.00 180.00 208.64 432.05 338.78 1.636 51 134.47 101.49 438.16 180.00 208.57 441.47 347.96 1.636 52 132.89 100.96 435.00 180.00 205.24 441.32 347.96 1.637 53 133.95 101.32 435.00 180.00 207.51 435.14 341.84 1.637 54 133.42 101.14 435.00 180.00 206.37 438.23 344.90 1.638 55 134.47 101.49 435.00 180.00 208.93 430.94 337.76 1.641 56 135.00 101.67 438.16 180.00 209.98 437.27 343.88 1.641 57 134.47 101.49 438.16 180.00 208.86 440.36 346.94 1.641 58 133.95 101.32 435.00 180.00 207.80 434.04 340.82 1.641 59 133.95 101.32 438.16 180.00 207.74 443.45 350.00 1.642 60 135.00 101.67 435.00 180.00 210.06 427.84 334.69 1.642 61 133.42 101.14 435.00 180.00 206.66 437.13 343.88 1.643 62 132.37 100.79 435.00 180.00 204.40 443.30 350.00 1.643 63 132.89 100.96 435.00 180.00 205.53 440.21 346.94 1.644 64 134.47 101.49 435.00 180.00 209.22 429.83 336.73 1.645 65 134.47 101.49 438.16 180.00 209.15 439.25 345.92 1.646 66 135.00 101.67 438.16 180.00 210.27 436.16 342.86 1.646 67 133.95 101.32 435.00 180.00 208.09 432.93 339.80 1.646 68 133.95 101.32 438.16 180.00 208.02 442.34 348.98 1.646 69 133.42 101.14 435.00 180.00 206.95 436.02 342.86 1.647 70 135.00 101.67 435.00 180.00 210.35 426.72 333.67 1.647 71 132.89 100.96 435.00 180.00 205.82 439.11 345.92 1.648 72 132.37 100.79 435.00 180.00 204.69 442.19 348.98 1.651 73 133.95 101.32 435.00 180.00 206.38 431.81 338.78 1.651 74 134.47 101.49 438.16 180.00 209.43 438.15 344.90 1.651 75 135.00 101.67 438.16 180.00 210.56 435.05 341.84 1.651 76 133.95 101.32 438.16 180.00 206.31 441.24 347.96 1.651 77 133.42 101.14 435.00 180.00 207.24 434.91 341.84 1.651 78 135.00 101.67 435.00 180.00 210.64 425.61 332.65 1.652 79 134.47 101.49 435.00 180.00 209.51 428.71 335.71 1.652 80 132.89 100.96 435.00 180.00 206.11 438.00 344.90 1.653 81 132.37 100.79 435.00 180.00 204.98 441.09 347.96 1.655 62 133.95 101.32 435.00 180.00 208.67 430.70 337.76 1.655 83 134.47 101.49 438.16 180.00 209.72 437.04 343.88 1.655 84 133.95 101.32 438.16 180.00 208.59 440.13 346.94 1.656 85 135.00 101.67 438.16 180.00 210.84 433.94 340.82 1.656 86 133.42 101.14 435.00 180.00 207.53 433.80 340.82 1.656 87 133.42 101.14 438.16 180.00 207.47 443.22 350.00 1.656 88 135.00 101.67 435.00 180.00 210.93 424.49 331.63 1.656 89 134.47 101.49 435.00 180.00 209.80 427.60 334.69 1.656 90 132.89 100.96 435.00 180.00 206.40 436.89 343.88 1.657 91 132.37 100.79 435.00 180.00 205.27 439.98 346.94 1.659 92 134.47 101.49 438.16 180.00 210.01 435.93 342.86 1.660 93 133.95 101.32 438.16 180.00 208.88 439.02 345.92 1.660 94 133.42 101.14 435.00 180.00 207.82 432.69 339.80 1.660 95 135.00 101.67 438.16 180.00 211.13 432.82 339.80 1.661 96 133.42 101.14 438.16 180.00 207.76 442.11 348.98 1.661 97 134.47 101.49 435.00 180.00 210.09 426.48 333.67 1.661 98 135.00 101.67 435.00 180.00 211.23 423.37 330.61 1.661 99 131.84 100.61 435.00 180.00 204.14 443.07 350.00 1.661 Critical Failure Surface (circle 1) Intersects: XL: 135.00 YL: 101.67 XR: 435.00 YR: 180.00 Centre: XC: 205.72 YC: 444.45 Radius: R: 350.00 Generated failure surface: (20 points) 135.00 101.67 151.63 98.65 168.39 96.44 185.24 95.05 202.13 94.47 219.04 94.70 235.91 95.75 252.71 97.62 269.40 100.29 285.94 103.76 302.30 108.03 318.43 113.09 334.30 118.92 349.87 125.51 365.10 132.84 379.96 140.90 394.41 149.66 408.42 159.12 421.96 169.24 435.00 180.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 48 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 135.00 21.75 -10.3 9.19 9.34 2 0.00 35.0 2719.11 1379.50 308.87 1.11 2 144.19 49.43 -10.3 7.44 7.56 3 100.00 18.0 6259.36 3134.88 870.35 1.06 3 151.63 62.78 -7.5 6.27 6.32 3 100.00 16.0 8024.09 3951.32 1307.52 1.04 4 157.90 81.05 -7.5 6.27 6.32 3 100.00 18.0 10390.55 5101.17 1690.64 1.04 5 164.17 64.94 -7.5 4.22 4.26 4 2000.00 20.0 8339.17 4087.32 2180.79 1.04 6 168.39 152.52 -4.7 8.42 8.45 4 2000.00 20.0 19591.64 9550.02 2458.11 1.02 176.82 182.05 -4.7 8.42 8.45 4 2000.00 20.0 23377.25 11399.14 2912.09 1.02 8 185.24 210.50 -2.0 8.45 8.45 4 2000.00 20.0 27001.76 13143.05 3254.40 1.01 9 193.69 236.74 -2.0 8.45 8.45 4 2000.00 20.0 30321.16 14781.46 3648.98 1.01 10 202.13 274.82 0.8 8.87 8.87 4 2000.00 20.0 35128.30 17150.12 3937.64 1.00 11 211.00 270.78 0.8 8.04 8.04 4 2000.00 20.0 34482.91 16898.60 4266.00 1.00 12 219.04 304.72 3.6 8.44 8.45 4 2000.00 20.0 38597.26 19051.20 4463.26 0.99 13 227.47 324.01 3.6 8.44 8.45 4 2000.00 20.0 40818.81 20257.14 4724.89 0.99 14 235.91 226.16 6.3 5.63 5.66 4 2000.00 20.0 28364.70 14199.09 4836.09 0.98 15 241.54 233.21 6.3 5.63 5.66 4 2000.00 20.0 29136.45 14641.49 4971.70 0.98 16 247.17 236.53 6.3 5.54 5.58 3 100.00 18.0 29445.69 14850.23 5245.23 0.98 17 252.71 269.29 9.1 6.15 6.22 3 100.00 18.0 33389.25 17018.11 5335.95 0.98 18 258.85 275.83 9.1 6.15 6.22 3 100.00 18.0 34047.09 17431.43 5441.68 0.98 19 265.00 118.72 9.1 2.60 2.63 3 100.00 18.0 14614.46 7502.48 5519.02 0.98 20 267.60 82.82 9.1 1.80 1.82 2 0.00 35.0 10190.83 5233.97 5475.37 0.94 21 269.40 246.46 11.9 5.30 5.42 2 0.00 35.0 30330.69 15715.02 5479.60 0.93 22 274.70 249.92 11.9 5.30 5.42 2 0.00 35.0 30763.27 15935.67 5557.70 0.93 23 280.00 284.41 11.9 5.94 6.07 2 0.00 35.0 34987.16 18134.67 5636.01 0.93 24 285.94 147.70 14.6 3.06 3.16 2 0.00 35.0 18149.59 9525.60 5631.35 0.92 25 289.00 323.70 14.6 6.65 6.87 2 0.00 35.0 39764.66 20876.31 5670.58 0.92 26 295.65 326.90 14.6 6.65 6.87 2 0.00 35.0 40163.88 21082.27 5727.46 0.92 27 302.30 399.06 17.4 8.07 8.45 2 0.00 35.0 49035.70 26095.70 5710.21 0.92 28 310.37 400.36 17.4 8.07 8.45 2 0.00 35.0 49197.73 26180.45 5729.06 0.92 29 318.43 393.40 20.2 7.93 8.45 2 0.00 35.0 48341.98 26151.80 5667.99 0.91 30 326.36 391.26 20.2 7.93 8.45 2 0.00 35.0 48074.60 26009.62 5636.68 0.91 31 334.30 286.21 22.9 5.85 6.35 2 0.00 35.0 35162.39 19393.00 5536.96 0.91 32 340.15 283.14 22.9 5.85 6.35 2 0.00 35.0 34777.97 19184.63 5476.52 0.91 33 346.00 185.39 22.9 3.87 4.20 2 0.00 35.0 22768.27 12392.94 5419.90 0.91 34 349.87 147.53 25.7 3.10 3.44 2 0.00 35.0 18115.35 9828.82 5308.01 0.91 35 352.97 284.27 25.7 6.06 6.73 6 50.00 16.0 34941.12 18286.40 5499.45 1.02 36 359.03 278.83 25.7 6.06 6.73 6 50.00 16.0 34349.14 17060.38 5394.95 1.02 37 365.10 220.69 28.5 4.90 5.58 6 50.00 16.0 27246.94 13165.91 5251.63 1.03 38 370.00 416.24 28.5 9.96 11.33 6 50.00 16.0 51542.19 23892.54 4882.04 1.03 39 379.96 250.63 31.2 6.76 7.91 6 50.00 16.0 31157.77 14341.93 4308.00 1.05 40 386.72 251.19 31.2 7.69 8.99 2 0.00 35.0 31283.23 13842.83 3526.50 0.92 41 394.41 141.76 34.0 4.94 5.96 6 50.00 16.0 17678.36 7692.89 3303.33 1.07 42 399.36 69.04 34.0 2.64 3.19 2 0.00 35.0 8630.39 3604.64 2766.87 0.93 43 402.00 72.61 34.0 3.00 3.62 5 0.00 45.0 7987.25 3659.17 2163.24 0.84 44 405.00 75.45 34.0 3.42 4.13 2 0.00 35.0 9431.50 3617.71 2317.30 0.93 45 408.42 124.24 36.8 6.77 8.45 2 0.00 35.0 15530.53 5459.63 1879.42 0.93 46 415.19 89.99 36.8 6.77 8.45 2 0.00 35.0 11248.43 2790.94 1326.60 0.93 47 421.96 31.38 39.5 3.35 4.34 2 0.00 35.0 3922.74 373.80 878.48 0.95 48 425.31 38.76 39.5 9.69 12.57 2 0.00 35.0 4845.21 0.00 364.64 0.95 X -S Area: 10089.20 Path Length: 321.18 X -S Weight: 1253667.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\].8114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 6 Full.gmf Processed: 30 Jul 2019 15:10:431. DATA: Analysis 1 - Case 6 - Full Reservoir Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 180.00 Profile: 2 (2 points) 0.00 153.00 Profile: 3 (2 points) 0.00 150.00 Profile: 4 (2 points) 0.00 145.00 Profile: 5 (2 points) 0.00 127.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 402.00 180.00 Profile: 9 (2 points) 405.00 180.00 Profile: 10 (2 points) 405.00 153.00 Profile: 11 (2 points) 405.00 150.00 Profile: 12 (2 points) 405.00 145.00 Profile: 13 (2 points) 405.00 127.00 Profile: 14 (2 points) 405.00 100.00 Profile: 15 (2 points) 402.00 97.00 Slope Surface (4 points) Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 405.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 0.00 100.00 Phreatic Surface (4 points) 172.00 0.00 Failure Surface 130.00 130.00 2 - Sand and Gravel 180.00 6 - Clay 153.00 2 - Sand and Gravel 150.00 6 - Clay 145.00 2 - Sand and Gravel 127.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 180.00 2 - Sand and Gravel 180.00 6 - Clay 153.00 2 - Sand and Gravel 150.00 6 - Clay 145.00 2 - Sand and Gravel 127.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 172.00 370.00 180.00 346.00 172.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 135.00 YL: 101.67 XR: 435.00 YR: Centre: XC: 205.72 YC: 444.45 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 60.00 20 R 50.00 50 500.00 180.00 500.00 172.00 180.00 350.00 RESULTS: Analysis 1 - Case 6 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.660 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.91 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 135.00 101.67 435.00 180.00 205.72 444.45 350.00 2.906 <-- Critical Surface 2 135.00 101.67 435.00 180.00 206.01 443.35 348.98 2.917 3 135.00 101.67 435.00 180.00 206.30 442.24 347.96 2.928 4 135.00 101.67 435.00 180.00 206.59 441.14 346.94 2.940 5 134.47 101.49 435.00 180.00 205.46 444.22 350.00 2.940 6 134.47 101.49 435.00 180.00 205.75 443.12 348.98 2.953 7 135.00 101.67 435.00 180.00 206.87 440.04 345.92 2.955 8 135.00 101.67 435.00 180.00 207.16 438.93 344.90 2.962 9 134.47 101.49 435.00 180.00 206.03 442.01 347.96 2.967 10 135.00 101.67 435.00 180.00 207.74 436.72 342.86 2.969 11 135.00 101.67 435.00 180.00 207.45 437.83 343.88 2.969 12 134.47 101.49 435.00 180.00 206.32 440.91 346.94 2.974 13 134.47 101.49 435.00 180.00 206.90 438.70 344.90 2.979 14 134.47 101.49 435.00 180.00 206.61 439.80 345.92 2.980 15 133.95 101.32 435.00 180.00 205.19 443.99 350.00 2.980 16 135.00 101.67 438.16 180.00 208.27 443.91 350.00 2.984 17 133.95 101.32 435.00 180.00 205.48 442.88 348.98 2.987 18 135.00 101.67 435.00 180.00 208.03 435.61 341.84 2.989 19 133.95 101.32 435.00 180.00 206.06 440.68 346.94 2.990 20 133.95 101.32 435.00 180.00 205.77 441.78 347.96 2.990 21 135.00 101.67 438.16 180.00 208.55 442.81 348.98 3.000 22 134.47 101.49 435.00 180.00 207.19 437.59 343.88 3.000 23 133.42 101.14 435.00 180.00 204.93 443.76 350.00 3.001 24 135.00 101.67 435.00 180.00 208.32 434.50 340.82 3.004 25 133.95 101.32 435.00 180.00 206.35 439.57 345.92 3.011 26 135.00 101.67 435.00 180.00 208.61 433.39 339.80 3.012 27 134.47 101.49 435.00 180.00 207.48 436.49 342.86 3.014 28 135.00 101.67 438.16 180.00 208.84 441.70 347.96 3.015 29 133.42 101.14 435.00 180.00 205.22 442.65 348.98 3.015 30 134.47 101.49 438.16 180.00 208.00 443.68 350.00 3.018 31 133.95 101.32 435.00 180.00 206.64 438.47 344.90 3.019 32 135.00 101.67 435.00 180.00 208.90 432.28 338.78 3.021 33 134.47 101.49 435.00 180.00 207.77 435.38 341.84 3.023 34 133.42 101.14 435.00 180.00 205.51 441.55 347.96 3.023 35 135.00 101.67 438.16 180.00 209.12 440.59 346.94 3.024 36 135.00 101.67 435.00 180.00 209.19 431.17 337.76 3.030 37 133.42 101.14 435.00 180.00 205.80 440.45 346.94 3.030 38 134.47 101.49 435.00 180.00 208.06 434.27 340.82 3.031 39 135.00 101.67 438.16 180.00 209.41 439.49 345.92 3.032 40 133.95 101.32 435.00 180.00 206.93 437.36 343.88 3.033 41 134.47 101.49 438.16 180.00 208.29 442.58 348.98 3.033 42 132.89 100.96 435.00 180.00 204.67 443.53 350.00 3.035 43 135.00 101.67 435.00 180.00 209.4B 430.06 336.73 3.038 44 134.47 101.49 435.00 180.00 208.35 433.16 339.80 3.039 45 133.95 101.32 435.00 180.00 207.22 436.25 342.86 3.041 46 135.00 101.67 438.16 180.00 209.70 438.38 344.90 3.041 47 132.89 100.96 435.00 180.00 204.96 442.42 348.98 3.042 48 134.47 101.49 438.16 180.00 208.57 441.47 347.96 3.042 49 133.42 101.14 435.00 180.00 206.09 439.34 345.92 3.044 50 135.00 101.67 435.00 180.00 209.77 428.95 335.71 3.047 51 134.47 101.49 435.00 180.00 208.64 432.05 338.78 3.048 52 132.89 100.96 435.00 180.00 205.24 441.32 347.96 3.049 53 133.95 101.32 435.00 180.00 207.51 435.14 341.84 3.049 54 135.00 101.67 438.16 180.00 209.98 437.27 343.88 3.050 55 134.47 101.49 438.16 180.00 208.86 440.36 346.94 3.051 56 133.95 101.32 438.16 180.00 207.74 443.45 350.00 3.052 57 133.42 101.14 435.00 180.00 206.37 438.23 344.90 3.052 58 134.47 101.49 435.00 180.00 208.93 430.94 337.76 3.056 59 133.95 101.32 435.00 180.00 207.80 434.04 340.82 3.058 60 135.00 101.67 438.16 180.00 210.27 436.16 342.86 3.059 61 134.47 101.49 438.16 180.00 209.15 439.25 345.92 3.059 62 133.42 101.14 435.00 180.00 206.66 437.13 343.88 3.060 63 133.95 101.32 436.16 180.00 208.02 442.34 348.98 3.060 64 135.00 101.67 435.00 180.00 210.06 427.84 334.69 3.061 65 132.37 100.79 435.00 180.00 204.40 443.30 350.00 3.061 66 132.89 100.96 435.00 180.00 205.53 440.21 346.94 3.063 67 134.47 101.49 435.00 180.00 209.22 429.83 336.73 3.064 68 133.95 101.32 435.00 180.00 208.09 432.93 339.80 3.066 69 135.00 101.67 438.16 180.00 210.56 435.05 341.84 3.068 70 133.42 101.14 435.00 180.00 206.95 436.02 342.86 3.068 71 134.47 101.49 438.16 180.00 209.43 438.15 344.90 3.068 72 133.95 101.32 438.16 180.00 208.31 941.24 347.9E 3.069 73 135.00 101.67 435.00 180.00 210.35 426.72 333.67 3.069 74 132.89 100.96 435.00 180.00 205.82 439.11 345.92 3.071 75 133.95 101.32 435.00 180.00 208.38 431.81 338.78 3.074 76 132.37 100.79 435.00 180.00 204.69 442.19 348.98 3.075 77 133.42 101.14 435.00 180.00 207.24 434.91 341.84 3.076 78 134.47 101.49 438.16 180.00 209.72 437.04 343.88 3.077 79 135.00 101.67 438.16 180.00 210.84 433.94 340.82 3.077 BO 135.00 101.67 435.00 180.00 210.64 425.61 332.65 3.077 81 133.95 101.32 438.16 180.00 208.59 440.13 346.94 3.077 82 134.47 101.49 435.00 180.00 209.51 428.71 335.71 3.079 83 132.89 100.96 435.00 180.00 206.11 438.00 344.90 3.079 84 133.42 101.14 438.16 180.00 207.47 443.22 350.00 3.079 65 133.95 101.32 435.00 180.00 206.67 430.70 337.76 3.082 86 132.37 100.79 435.00 180.00 204.98 441.09 347.96 3.083 87 135.00 101.67 441.32 180.00 210.79 443.36 350.00 3.084 88 133.42 101.14 435.00 180.00 207.53 433.80 340.82 3.084 89 135.00 101.67 435.00 180.00 210.93 424.49 331.63 3.085 90 134.47 101.49 438.16 180.00 210.01 435.93 342.86 3.085 91 135.00 101.67 438.16 180.00 211.13 432.82 339.80 3.086 92 133.95 101.32 438.16 180.00 208.88 439.02 345.92 3.086 93 134.47 101.49 435.00 180.00 209.80 427.60 334.69 3.086 94 132.89 100.96 435.00 180.00 206.40 436.89 343.88 3.087 95 133.42 101.14 438.16 180.00 207.76 442.11 348.98 3.087 96 132.37 100.79 435.00 180.00 205.27 439.98 346.94 3.090 97 135.00 101.67 441.32 180.00 211.08 442.25 348.98 3.091 98 133.42 101.14 435.00 180.00 207.62 432.69 339.80 3.092 99 135.00 101.67 441.32 180.00 211.36 441.14 347.96 3.093 Critical Failure Surface (circle 1) Intersects: XL: 135.00 YL: Centre: XC: 205.72 YC: Generated failure surface: (20 points) 135.00 101.67 151.63 219.04 94.70 235.91 302.30 108.03 318.43 379.96 140.90 394.41 101.67 444.45 98.65 95.75 113.09 149.66 XR: 435.00 Radius: 168.39 252.71 334.30 408.42 96.44 97.62 118.92 159.12 YR: R: Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) 180.00 350.00 165.24 269.40 349.67 421.96 95.05 100.29 125.51 169.24 202.13 285.94 365.10 435.00 94.47 103.76 132.84 180.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Marl Cohesion Phi Weight Force Stress Factor 1 135.0O 21.75 -10.3 .19 9.34 2 0.00 35.0 2719.11 41497.48 4595.66 1.06 2 144.19 49.43 -10.3 .44 7.56 3 100.00 18.0 6259.36 34262.54 4976.86 1.04 3 151.63 62.78 -7.5 .27 6.32 3 100.00 18.0 3024.09 29096.23 5272.34 1.02 4 157.90 81.05 -7.5 .27 6.32 3 100.0U 18.0 10390.55 29422.00 5522.49 1.02 5 164.17 64.94 -7.5 .22 4.26 4 2000.00 20.0 8339.17 20016.30 5821.33 1.03 6 168.39 152.52 -4.7 .42 8.45 4 2000.00 20.0 19591.64 40033.76 6002.73 1.01 7 176.82 182.05 -4.7 .42 8.45 4 2000.00 20.0 23377.25 40402.04 6279.37 1.01 8 185.24 210.50 -2.0 .45 8.45 4 2000.00 20.0 27001.76 40663.31 6483.39 1.00 9 193.69 236.74 -2.0 .45 8.45 4 2000.00 20.0 30321.16 40816.59 6701.52 1.00 10 202.13 274.82 0.8 .87 8.87 4 2000.00 20.0 35128.30 42866.78 6849.13 1.00 11 211.00 270.78 0.8 .04 8.04 4 2000.00 20.0 34482.91 38795.07 7001.95 1.00 12 219.04 304.72 3.6 .44 8.45 4 2000.00 20.0 38597.26 40630.49 7068.03 0.99 13 227.47 324.01 3.6 .44 8.45 4 2000.00 20.0 40818.81 40353.33 7154.98 0.99 14 235.91 226.16 6.3 .63 5.66 4 2000.00 20.0 28364.70 26836.67 7160.35 0.99 15 241.54 233.21 6.3 .63 5.66 4 2000.00 20.0 29136.45 26615.94 7179.56 0.99 16 247.17 236.53 6.3 .54 5.58 3 100.00 18.0 29445.69 25993.64 7274.01 0.99 17 252.71 269.29 9.1 .15 6.22 3 100.00 18.0 33389.25 28697.23 7256.82 0.99 16 256.85 275.83 9.1 .15 6.22 3 100.00 18.0 34047.09 28315.00 7235.32 0.99 19 265.00 118.72 9.1 .60 2.63 3 100.00 18.0 14614.46 11869.40 7222.16 0.99 20 267.60 82.82 9.1 .80 1.82 2 0.00 35.0 10190.83 8171.85 7171.14 0.98 21 269.40 246.46 11.9 .30 5.42 2 0.00 35.0 30330.69 24044.68 7125.35 0.97 22 274.70 249.92 11.9 .30 5.42 2 0.00 35.0 30763.27 23668.38 7094.77 0.97 23 280.00 284.41 11.9 .94 6.07 2 0.00 35.0 34987.16 26097.16 7057.62 0.97 24 285.94 147.70 14.6 .06 3.16 2 0.00 35.0 18149.59 13371.01 6982.85 0.97 25 289.00 323.70 14.6 .65 6.87 2 0.00 35.0 39764.66 28549.45 6922.03 0.97 26 295.65 326.90 14.6 .65 6.87 2 0.00 35.0 40163.88 27804.77 6841.96 0.97 27 302.30 399.06 17.4 .07 8.45 2 0.00 35.0 49035.70 33069.42 6694.82 0.97 28 310.37 400.36 17.4 .07 8.45 2 0.00 35.0 49197.73 31736.27 6546.44 0.97 29 318.43 393.40 20.2 .93 8.45 2 0.00 35.0 48341.98 30301.27 6340.21 0.98 30 326.36 391.26 20.2 .93 8.45 2 0.00 35.0 48074.60 28764.26 6142.86 0.98 31 334.30 286.21 22.9 .85 6.35 2 0.00 35.0 35162.39 20552.77 5918.64 0.99 32 340.15 283.14 22.9 .85 6.35 2 0.00 35.0 34777.97 19571.22 5734.29 0.99 33 346.00 185.39 22.9 .87 4.2D 2 0.00 35.0 22768.27 12392.94 5617.69 0.99 34 349.87 147.53 25.7 .10 3.44 2 0.00 35.0 18115.35 9828.82 5528.89 0.99 35 352.97 284.27 25.7 .06 6.73 6 50.00 16.0 34941.12 18286.40 5615.59 1.06 36 359.03 278.83 25.7 .06 6.73 6 50.00 16.0 34349.14 17060.38 5514.14 1.06 37 365.10 220.69 28.5 .90 5.58 6 50.00 16.0 27246.94 13165.91 5386.49 1.08 36 370.00 416.24 28.5 .96 11.33 6 50.00 16.0 51542.19 23892.54 5011.71 1.08 39 379.96 250.63 31.2 .76 7.91 6 50.00 16.0 31157.77 14341.93 4438.59 1.10 40 386.72 251.19 31.2 .69 8.99 2 0.0D 35.0 31283.23 13842.83 3746.00 1.02 41 394.41 141.76 34.0 .94 5.96 6 50.00 16.0 17678.36 7692.89 3421.63 1.13 42 399.36 69.04 34.0 x.64 3.19 2 0.00 35.0 8630.39 3604.64 2965.15 1.04 43 402.00 72.61 34.0 3.00 3.62 5 0.00 45.0 7987.25 3659.17 2351.28 0.98 44 405.00 75.45 34.0 3.42 4.13 2 0.00 35.0 9431.50 3617.71 2491.89 1.04 45 408.42 124.24. 36.8 6.77 8.45 2 0.00 35.0 15530.53 5459.63 2042.48 1.06 46 415.19 89.99 36.8 6.77 8.45 2 0.00 35.0 11248.43 2790.94 1458.32 1.06 47 421.96 31.38 39.5 3.35 4.34 2 0.00 35.0 3922.74 373.80 992.36 1.08 48 425 31 38 76 39 5 9 69 12 57 2 0 00 35 0 4845 21 0 00 417 04 1 08 X -S Area 10089 20 Path Length 321 18 X -S Weignt 1253667 88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 7.RD.gmf Processed: 30 Jul 2019 15:53:43 DATA: Analysis 1 - Case 7 - Rapid Draw Down Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 160.00 Profile: 2 (2 points) 0.00 147.00 Profile: 3 (2 points) 0.00 142.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 302.00 160.00 Profile: 7 (2 points) 305.00 160.00 Profile: 8 (2 points) 305.00 147.00 Profile: 9 (2 points) 305.00 142.00 Profile: 10 (2 points) 305.00 100.00 Profile: 11 (2 points) 302.00 97.00 - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 305.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 100.00 0.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 160.00 6 - Clay 147.00 2 - Sand and Gravel 142.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 160.00 2 - Sand and Gravel 160.00 6 - Clay 147.00 2 - Sand and Gravel 142.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 280.00 100.00 262.00 160.00 154.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 330.00 YR: Centre: XC: 157.73 YC: 361.37 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 30.00 20 R 50.00 50 RESULTS: Analysis 1 - Case 7 - Rapid Draw Down Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.285 495.00 160.00 495.00 154.00 160.00 265.00 Analysis Summary There were: 200O1 successful analyses from a•total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.57 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 330.00 160.00 157.73 361.37 265.00 1.566 K-- Critical Surface 2 105.00 101.67 330.00 160.00 158.02 360.27 263.98 1.590 3 105.00 101.67 330.00 160.00 158.30 359.17 262.96 1.614 4 104.47 101.49 330.00 160.00 157.47 361.14 265.00 1.635 5 105.00 101.67 330.00 160.00 158.59 356.07 261.94 1.638 6 105.00 101.67 331.58 160.00 159.01 361.11 265.00 1.653 7 105.00 101.67 330.00 160.00 158.87 356.96 260.92 1.654 8 104.47 101.49 330.00 160.00 157.75 360.04 263.98 1.659 9 105.00 101.67 331.58 160.00 159.29 360.00 263.98 1.663 10 104.47 101.49 330.00 160.00 158.04 356.94 262.96 1.667 11 105.00 101.67 330.00 160.00 159.16 355.86 259.90 1.674 12 105.00 101.67 331.56 160.00 159.57 358.90 262.96 1.686 13 105.00 101.67 330.00 160.00 159.45 354.75 258.88 1.690 14 104.47 101.49 330.00 160.00 158.32 357.84 261.94 1.691 15 103.95 101.32 330.00 160.00 157.20 360.91 265.00 1.693 16 105.00 101.67 331.58 160.00 159.86 357.60 261.94 1.701 17 104.47 101.49 331.58 160.00 158.74 360.88 265.00 1.703 18 104.47 101.49 330.00 160.00 158.61 356.73 260.92 1.705 19 105.00 101.67 330.00 160.00 159.73 353.65 257.86 1.706 20 103.95 101.32 330.00 160.00 157.48 359.81 263.98 1.708 21 105.00 101.67 333.16 160.00 160.27 360.84 265.00 1.713 22 104.47 101.49 331.58 160.00 159.02 359.77 263.98 1.717 23 105.00 101.67 331.58 160.00 160.14 356.69 260.92 1.718 24 104.47 101.49 330.00 160.00 158.90 355.63 259.90 1.722 25 103.95 101.32 330.00 160.00 157.77 358.71 262.96 1.722 26 105.00 101.67 330.00 160.00 160.02 352.54 256.84 1.724 27 105.00 101.67 333.16 160.00 160.56 359.73 263.98 1.731 28 105.00 101.67 331.58 160.00 160.43 355.59 259.90 1.732 29 104.47 101.49 331.58 160.00 159.31 358.67 262.96 1.734 30 105.00 101.67 330.00 160.00 160.31 351.43 255.82 1.737 31 103.95 101.32 330.00 160.00 158.06 357.60 261.94 1.738 32 104.47 101.49 330.00 160.00 159.18 354.52 258.88 1.739 33 103.42 101.14 330.00 160.00 156.93 360.68 265.00 1.740 34 105.00 101.67 333.16 160.00 160.84 358.63 262.96 1.744 35 105 47 101.49 331.58 160.00 159.59 357.57 ?61.94 1.748 36 105.00 101.67 331.58 160.00 160.71 354.48 258.68 1.748 37 103.95 101.32 331.58 160.00 158.47 360.65 265.00 1.751 38 104.47 101.49 330.00 160.00 159.47 353.42 257.86 1.751 39 105.00 101.67 330.00 160.00 160.60 350.32 254.80 1.753 40 103.95 101.32 330.00 160.00 158.34 356.50 260.92 1.755 41 103.42 101.14 330.00 160.00 157.22 359.58 263.98 1.756 42 104.47 101.49 333.16 160.00 160.01 360.61 265.00 1.759 43 105.00 101.67 333.16 160.00 161.12 357.52 261.94 1.759 44 104.47 101.49 331.58 160.00 159.88 356.46 260.92 1.763 45 105.00 101.67 331.58 160.00 161.00 353.37 257.86 1.764 46 103.95 101.32 331.58 160.00 158.76 359.54 263.98 1.764 47 104.47 101.49 330.00 160.00 159.76 352.31 256.84 1.767 48 103.95 101.32 330.00 160.00 158.63 355.40 259.90 1.767 49 105.00 101.67 330.00 160.00 160.88 349.21 253.78 1.769 50 105.00 101.67 334.74 160.00 161.54 360.57 265.00 1.771 51 103.42 101.14 330.00 160.00 157.51 358.48 262.96 1.772 52 104.47 101.49 333.16 160.00 160.29 359.50 263.98 1.774 53 105.00 101.67 333.16 160.00 161.40 356.42 260.92 1.775 54 104.47 101.49 331.56 160.00 160.16 355.35 259.90 1.778 55 103.95 101.32 331.58 160.00 159.04 358.44 262.96 1.778 56 105.00 101.67 331.58 160.00 161.28 352.26 256.84 1.779 57 103.95 101.32 330.00 160.00 158.92 354.29 258.88 1.782 58 104.47 101.49 330.00 160.00 160.04 351.20 255.82 1.782 59 105.00 101.67 330.00 160.00 161.17 348.10 252.76 1.784 60 105.00 101.67 334.74 160.00 161.82 359.46 263.98 1.786 61 104.47 101.49 333.16 160.00 160.57 358.40 262.96 1.789 62 102.89 100.96 330.00 160.00 156.67 360.45 265.00 1.790 63 105.00 101.67 333.16 160.00 161.69 355.31 259.90 1.790 64 103.42 101.14 330.00 160.00 157.79 357.37 261.94 1.792 65 104.47 101.49 331.58 160.00 160.45 354.25 258.88 1.793 66 103.95 101.32 331.58 160.00 159.33 357.33 261.94 1.793 67 103.95 101.32 330.00 160.00 159.21 353.18 257.86 1.797 68 105.00 101.67 331.58 160.00 161.57 351.15 255.82 1.797 69 104.47 101.49 330.00 160.00 160.33 350.09 254.80 1.798 70 102.89 100.96 330.00 160.00 156.95 359.35 263.98 1.798 71 105.00 101.67 330.00 160.00 161.46 346.99 251.73 1.600 72 103.42 101.14 330.00 160.00 158.08 356.27 260.92 1.600 73 105.00 101.67 334.74 160.00 162.10 358.35 262.96 1.602 74 103.42 101.14 331.58 160.00 158.20 360.42 265.00 1.602 75 104.47 101.49 333.16 160.00 160.85 357.29 261.94 1.604 76 103.95 101.32 333.16 160.00 159.74 360.38 265.00 1.805 77 105.00 101.67 333.16 160.00 161.97 354.20 258.88 1.806 78 104.47 101.49 331.58 160.00 160.73 353.14 257.86 1.808 79 102.89 100.96 330.00 160.00 157.24 358.25 262.96 1.810 60 103.42 101.14 331.58 160.00 158.49 359.31 263.98 1.810 81 103.42 101.14 330.00 160.00 158.37 355.16 259.90 1.811 62 105.00 101.67 331.58 160.00 161.85 350.04 254.60 1.813 83 104.47 101.49 330.00 160.00 160.62 348.98 253.78 1.813 84 104.47 101.49 334.74 160.00 161.27 360.33 265.00 1.816 85 105.00 101.67 330.00 160.00 161.75 345.87 250.71 1.816 86 105.00 101.67 334.74 160.00 162.38 357.24 261.94 1.817 87 103.95 101.32 330.00 160.00 159.49 352.07 256.84 1.817 88 103.95 101.32 331.58 160.00 159.61 356.23 260.92 1.818 89 104.47 101.49 333.16 160.00 161.14 356.18 260.92 1.819 90 105.00 101.67 333.16 160.00 162.26 353.09 257.86 1.821 91 103.42 101.14 331.58 160.00 158.77 358.21 262.96 1.822 92 102.89 100.96 330.00 160.00 157.53 357.14 261.94 1.822 93 102.37 100.79 330.00 160.00 156.40 360.22 265.00 1.622 94 104.47 101.49 331.58 160.00 161.02 352.03 256.84 1.823 95 103.42 101.14 330.00 160.00 158.65 354.06 258.88 1.824 96 103.95 101.32 330.00 160.00 159.78 350.96 255.82 1.626 97 103.95 101.32 331.58 160.00 159.90 355.12 259.90 1.827 98 103.95 101.32 333.16 160.00 160.02 359.27 263.98 1.828 99 105.00 101.67 331.58 160.00 162.14 348.93 253.78 1.828 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 Centre: XC: 157.73 YC: 361.37 Generated failure surface: (20 points) 105.00 101.67 117.47 99.44 167.96 96.56 180.60 97.36 230.35 106.51 242.44 110.27 288.60 130.94 299.46 137.45 XR: 330.00 Radius: 130.02 193.19 254.34 310.00 97.82 98.75 114.60 144.48 YR: R: Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) 160.00 265.00 142.65 205.69 266.02 320.18 96.80 100.74 119.50 152.00 155.30 218.09 277.45 330.00 96.38 103.33 124.95 160.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 5.59 -10.1 4.67 4.75 2 0.00 35.0 698.60 354.24 155.94 1.10 2 109.67 16.77 -10.1 4.67 4.75 2 0.00 35.0 2095.81 1062.72 467.83 1.10 3 114.35 17.40 -10.1 3.12 3.17 3 100.00 18.0 2189.02 1102.96 727.41 1.05 4 117.47 49.17 -7.4 6.28 6.33 3 100.00 18.0 6243.02 3093.83 1016.67 1.04 5 123.75 67.41 -7.4 6.28 6.33 3 100.00 18.0 8605.00 4241.68 1398.20 1.04 6 130.02 66.94 -4.6 5.06 5.07 3 100.00 18.0 8560.74 4190.86 1712.81 1.02 7 135.08 77.54 -4.6 5.06 5.07 3 100.00 18.0 9918.62 4854.33 1983.67 1.02 R 140.14 42.36 -4.6 2.51 2.52 4 2000.00 20.0 5419.85 2652.15 2288.76 1.02 9 142.65 117.56 -1.9 6.33 6.33 4 2000.00 20.0 15030.21 7339.91 2427.16 1.01 10 146.97 132.23 -1.9 6.33 6.33 4 2000.00 20.0 16885.44 8255.96 2721.49 1.01 it 155.30 146.02 0.8 6.33 6.33 4 2000.00 20.0 18614.25 9112.45 2916.'9 1.00 12 161.63 158.79 0.8 6.33 6.33 4 2000.00 20.0 20201.04 9909.37 3166.60 1.00 13 167.96 187.95 3.6 6.95 6.97 4 2000.00 20.0 23851.13 11750.75 3326.58 0.99 14 174.92 163.41 3.6 5.69 5.70 3 100.00 18.0 20682.85 10216.69 3610.31 0.99 15 160.60 190.13 6.3 6.29 6.33 3 100.00 18.0 _ 23996.79 11936.36 3763.00 0.98 16 186.90 198.94 6.3 6.29 6.33 3 100.00 18.0 25028.37 12489.72 3925.21 0.98 17 193.19 128.03 9.1 3.92 3.97 3 100.00 18.0 16062.02 8089.69 4020.95 0.98 18 197.11 130.70 9.1 3.92 3.97 3 100.00 18.0 16357.04 8258.64 4095.14 0.98 19 201.03 158.95 9.1 4.66 4.72 2 0.00 35.0 19868.15 10043.44 4118.30 0.95 20 205.69 216.14 11.8 6.20 6.33 2 0.00 35.0 27017.36 13778.04 4172.74 0.93 21 211.89 220.92 11.8 6.20 6.33 2 0.00 35.0 27615.12 14082.88 4265.06 0.93 22 218.09 143.10 14.5 3.96 4.09 2 0.00 35.0 17887.04 9224.42 4286.91 0.93 23 222.04 144.26 14.5 3.96 4.09 2 0.00 35.0 18031.90 9299.13 4321.63 0.93 24 226.00 159.87 14.5 4.35 4.49 2 0.00 35.0 19968.19 10305.80 4354.81 0.93 25 230.35 197.07 17.3 5.33 5.58 2 0.00 35.0 24571.89 12878.13 4331.84 0.92 26 235.67 197.71 17.3 5.33 5.58 2 0.00 35.0 24604.02 12919.64 4338.05 0.92 27 241.00 53.52 17.3 1.44 1.51 2 0.00 35.0 6653.75 3497.23 4343.04 0.92 28 242.44 220.82 20.0 5.95 6.33 2 0.00 35.0 27454.01 14664.61 4292.85 0.92 29 248.39 219.73 20.0 5.95 6.33 2 0.00 35.0 27317.54 14592.10 4271.52 0.92 30 254.34 140.52 22.7 3.83 4.15 2 0.00 35.0 17469.82 9508.43 4201.16 0.91 31 258.17 139.26 22.7 3.83 4.15 2 0.00 35.0 17312.05 9423.02 4163.24 0.91 32 262.00 144.59 22.7 4.02 4.35 2 0.00 35.0 17973.98 9602.01 4117.82 0.91 33 266.02 202.49 25.5 5.72 6.33 2 0.00 35.0 25168.14 13092.32 3993.20 0.91 34 271.73 197.80 25.5 5.72 6.33 2 0.00 35.0 24582.64 12015.85 3878.91 0.91 35 277.45 86.68 28.2 2.55 2.90 2 0.00 35.0 10771.54 5130.70 3743.78 0.92 36 280.00 139.91 28.2 4.30 4.88 2 0.00 35.0 17381.78 8081.00 3578.99 0.92 37 284.30 129.98 28.2 4.30 4.88 2 0.00 35.0 16140.22 7377.56 3318.35 0.92 38 288.60 148.94 31.0 5.43 6.33 2 0.00 35.0 18482.20 8468.07 2967.02 0.92 39 294.03 131.26 31.0 5.43 6.33 2 0.00 35.0 16271.48 7181.09 2602.96 0.92 40 299.46 55.08 33.7 2.54 3.05 2 0.00 35.0 6821.53 2989.04 2295.28 0.93 41 302.00 59.56 33.7 3.00 3.61 5 0.00 45.0 6551.81 3117.37 1789.83 0.64 42 305.00 23.58 33.7 1.28 1.54 2 0.00 35.0 2915.72 1192.82 1933.11 0.93 43 306.28 62.30 33.7 3.72 4.47 6 50.00 16.0 7717.23 2999.89 1904.39 1.07 44 310.00 48.69 36.4 3.41 4.24 6 50.00 16.0 6065.02 2187.76 1605.34 1.09 45 313.41 71.11. 36.4 6.77 8.42 2 0.00 35.0 8868.96 2363.83 1056.41 0.93 46 320.18 17.17 39.2 2.45 3.17 2 0.00 35.0 2146.81 197.45 657.95 0.95 47 322.64 22.09 39.2 7.36 9.50 2 0.00 35.0 2760.95 0.00 274.85 0.95 X -S Area: 5650.05 Path Length: 240.60 X -S Weight: 706850.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 7 Ful.l.nmf Processed: 30 Jul 2019 15:55:49 DATA: Analysis 1 - Case 7 - Full Reservoir Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 160.00 Profile: 2 (2 points) 0.00 147.00 Profile: 3 (2 points) 0.00 142.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 302.00 160.00 Profile: 7 (2 points) 305.00 160.00 Profile: 8 (2 points) 305.00 147.00 Profile: 9 (2 points) 305.00 142.00 Profile: 10 (2 points) 305.00 100.00 Profile: 11 (2 points) 302.00 97.00 Slope Surface (4 points) Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 305.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 0.00 100.00 Phreatic Surface (4 points) 0.00 154.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 160.00 6 - Clay 147.00 2 Sand and Gravel 142.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 160.00 2 - Sand and Gravel 160.00 6 - Clay 147.00 2 - Sand and Gravel 142.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 280.00 154.00 262.00 160.00 154.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 330.00 YR: Centre: XC: 157.73 YC: 361.37 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 30.00 20 R 50.00 50 RESULTS: Analysis 1 - Case 7 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 4.169 • 495.00 160.00 495.00 154.00 160.00 265.00 Analysis Summary There were: 20001. successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.93 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 330.00 160.00 157.73 361.37 265.00 2.927 K-- Critical Surface 2 105.00 101.67 330.00 160.00 158.02 360.27 263.98 2.969 3 105.00 101.67 330.00 160.00 158.30 359.17 262.96 3.010 4 104.47 101.49 330.00 160.00 157.47 361.14 265.00 3.048 5 105.00 101.67 330.00 160.00 158.59 358.07 261.94 3.053 6 105.00 101.67 331.58 160.00 159.01 361.11 265.00 3.075 7 105.00 101.67 330.00 160.00 158.87 356.96 260.92 3.080 8 104.47 101.49 330.00 160.00 157.75 360.04 263.98 3.089 9 105.00 101.67 331.58 160.00 159.29 360.00 263.98 3.092 10 104.47 101.49 330.00 160.00 158.04 358.94 262.96 3.104 11 105.00 101.67 330.00 160.00 159.16 355.86 259.90 3.115 12 105.00 101.67 331.58 160.00 159.57 358.90 262.96 3.132 13 105.00 101.67 330.00 160.00 159.45 354.75 258.88 3.142 14 104.47 101.49 330.00 160.00 158.32 357.64 261.94 3.144 15 103.95 101.32 330.00 160.00 157.20 360.91 265.00 3.150 16 105.00 101.67 331.58 160.00 159.86 357.80 261.94 3.158 17 104.47 101.49 331.58 160.00 158.74 360.88 265.00 3.162 18 104.47 101.49 330.00 160.00 158.61 356.73 260.92 3.170 19 105.00 101.67 330.00 160.00 159.73 353.65 257.86 3.171 20 103.95 101.32 330.00 160.00 157.48 359.81 263.98 3.175 21 105.00 101.67 333.16 160.00 160.27 360.84 265.00 3.176 22 104.47 101.49 331.58 160.00 159.02 359.77 263.98 3.187 23 105.00 101.67 331.58 160.00 160.14 356.69 260.92 3.188 24 104.47 101.49 330.00 160.00 158.90 355.63 259.90 3.198 25 103.95 101.32 330.00 160.00 157.77 358.71 262.96 3.200 26 105.00 101.67 330.00 160.00 160.02 352.54 256.84 3.203 27 105.00 101.67 333.16 160.00 160.56 359.73 263.98 3.206 28 105.00 101.67 331.58 160.00 160.43 355.59 259.90 3.213 29 104.47 101.49 331.58 160.00 159.31 358.67 . 262.96 3.216 30 105.00 101.67 330.00 160.00 160.31 351.43 255.82 3.225 31 103.95 101.32 330.00 160.00 158.06 357.60 261.94 3.228 32 105.00 101.67 333.16 160.00 160.84 358.63 262.96 3.229 33 104.47 101.49 330.00 160.00 159.18 354.52 258.88 3.229 34 103.42 101.14 330.00 160.00 156.93 360.68 265.00 3.232 35 104.4/ 101.49 331.58 160.00 159.59 357.57 261.94 3.240 36 105.00 101.67 331.58 160.00 160.71 354.48 258.88 3.240 37 103.95 101.32 331.58 160.00 158.47 360.65 265.00 3.246 38 104.47 101.49 330.00 160.00 159.47 353.42 257.86 3.251 39 105.00 301.67 330.00 160.00 160.60 350.32 254.80 3.252 40 105.00 101.67 333.16 160.00 161.12 357.52 261.94 3.256 41 104.47 101.49 333.16 160.00 160.01 360.61 265.00 3.257 42 103.95 101.32 330.00 160.00 158.34 356.50 260.92 3.258 43 103.42 101.14 330.00 160.00 157.22 359.58 263.98 3.259 44 104.47 101.49 331.58 160.00 159.88 356.46 260.92 3.266 45 105.00 101.67 331.58 160.00 161.00 353.37 257.86 3.267 46 103.95 101.32 331.58 160.00 158.76 359.54 263.98 3.269 47 105.00 101.67 334.74 160.00 161.54 360.57 265.00 3.273 48 104.47 101.49 330.00 160.00 159.76 352.31 256.84 3.278 49 103.95 101.32 330.00 160.00 158.63 355.40 259.90 3.279 50 105.00 101.67 330.00 160.00 160.88 349.21 253.78 3.280 51 105.00 101.67 333.16 160.00 161.40 356.42 260.92 3.283 52 104.47 101.49 333.16 160.00 160.29 359.50 263.98 3.283 53 103.42 101.14 330.00 160.00 157.51 358.48 262.96 3.289 54 104.47 101.49 331.58 160.00 160.16 355.35 259.90 3.293 55 105.00 101.67 331.58 160.00 161.28 352.26 256.84 3.294 56 103.95 101.32 331.58 160.00 159.04 358.44 262.96 3.294 57 105.00 101.67 334.74 160.00 161.82 359.46 263.98 3.299 56 104.47 101.49 330.00 160.00 160.04 351.20 255.82 3.305 59 103.95 101.32 330.00 160.00 158.92 354.29 258.88 3.305 60 105.00 101.67 330.00 160.00 161.17 348.10 252.76 3.308 61 104.47 101.49 333.16 160.00 160.57 358.40 .262.96 3.309 62 105.00 101.67 333.16 160.00 161.69 355.31 259.90 3.310 63 104.47 101.49 331.58 160.00 160.45 354.25 256.88 3.319 64 102.89 100.96 330.00 160.00 156.67 360.45 265.00 3.320 65 103.95 101.32 331.58 160.00 159.33 357.33 261.94 3.320 66 103.42 101.14 330.00 160.00 157.79 357.37 261.94 3.323 67 105.00 101.67 334.74 160.00 162.10 358.35 262.96 3.325 68 105.00 101.67 331.58 160.00 161.57 351.15 255.82 3.329 69 103.95 101.32 330.00 160.00 159.21 353.18 257.86 3.331 70 104.47 101.49 330.00 160.00 160.33 350.09 254.80 3.332 71 102.89 100.96 330.00 160.00 156.95 359.35 263.98 3.335 72 104.47 101.49 333.16 160.00 160.85 357.29 261.94 3.335 73 105.00 101.67 330.00 160.00 161.46 346.99 251.73 3.336 74 105.00 101.67 333.16 160.00 161.97 354.20 258.88 3.336 75 103.95 101.32 333.16 160.00 159.74 360.38 265.00 3.336 76 103.42 101.14 331.58 160.00 158.20 360.42 265.00 3.337 77 103.42 101.14 330.00 160.00 158.08 356.27 260.92 3.338 78 104.47 101.49 331.58 160.00 160.73 353.14 257.86 3.346 79 104.47 101.49 334.74 160.00 161.27 360.33 265.00 3.351 80 103.42 101.14 331.58 160.00 158.49 359.31 263.98 3.351 81 105.00 101.67 334.74 160.00 162.38 357.24 261.94 3.352 82 105.00 101.67 331.58 160.00 161.85 350.04 254.80 3.356 83 102.89 100.96 330.00 160.00 157.24 350.25 262.96 3.356 84 103.42 101.14 330.00 160.00 158.37 355.16 259.90 3.357 85 104.47 101.49 330.00 160.00 160.62 348.98 253.78 3.358 86 104.47 101.49 333.16 160.00 161.14 356.18 260.92 3.361 87 105.00 101.67 333.16 160.00 162.26 353.09 257.86 3.363 88 103.95 101.32 331.58 160.00 159.61 356.23 260.92 3.363 89 105.00 101.67 330.00 160.00 161.75 345.87 250.71 3.363 90 103.95 101.32 330.00 160.00 159.49 352.07 256.84 3.366 91 105.00 101.67 336.32 160.00 162.79 360.29 265.00 3.368 92 103.42 101.14 331.58 160.00 158.77 358.21 262.96 3.371 93 104.47 101.49 331.58 160.00 161.02 352.03 256.84 3.372 94 104.47 101.49 334.74 160.00 161.55 359.23 263.98 3.376 95 102.89 100.96 330.00 160.00 157.53 357.14 261.94 3.377 96 103.95 101.32 333.16 160.00 160.02 359.27 263.98 3.377 97 102.37 100.79 330.00 160.00 156.40 360.22 265.00 3.378 98 105.00 101.67 334.74 160.00 162.66 356.13 260.92 3.378 99 103.42 101.14 330.00 160.00 158.65 354.06 258.88 3.379 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: Centre: XC: 157.73 YC: 361.37 Generated failure surface: (20 points) 105.00 101.67 117.47 99.44 167.96 96.56 180.60 97.36 230.35 106.51 242.44 110.27 288.60 130.94 299.46 137.45 330.00 Radius: YR: R: 160.00 265.00 130.02 97.82 142.65 96.80 155.30 96.38 193.19 98.75 205.69 100.74 218.09 103.33 254.34 114.60 266.02 119.50 277.45 124.95 310.00 144.48 320.18 152.00 330.00 160.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 5.59 -10.1 4.67 4.75 2 0.00 35.0 698.60 15627.98 3369.78 1.06 2 109.67 16.77 -10.1 4.67 4.75 2 0.00 35.0 2095.81 15874.90 3578.15 1.06 3 114.35 17.40 -10.1 3.12 3.17 3 100.00 18.0 2189.02 10727.87 3754.08 1.04 4 117.47 49.17 -7.4 6.28 6.33 3 100.00 18.0 6243.02 21714.76 3947.08 1.02 5 123.75 67.41 -7.4 6.28 6.33 3 100.00 16.0 8605.00 22035.67 4195.47 1.02 6 130.02 66.94 -4.6 5.06 5.07 3 100.00 18.0 8560.74 17852.35 4395.87 1.01 7 135.08 77.54 -4.6 5.06 5.07 3 100.00 18.0 9918.62 17982.04 4560.43 1.01 8 140.14 42.36. -4.6 2.51 2.52 4 2000.00 20.0 5419.85 8961.48 4737.85 1.01 9 142.65 117.56 -1.9 6.33 6.33 4 2000.00 20.0 15030.21 22641.57 4819.62 1.00 10 148.97 132.23 -1.9 6.33 6.33 4 2000.00 20.0 16885.44 22724.21 4981.79 1.00 11 155.30 146.02 0.8 6.33 6.33 4 2000.00 20.0 18614.25 22747.14 5080.93 1.00 12 161.63 158.79 0.8 6.33 6.3s 4 2000.00 20.0 20201.04 22710.36 5199.66 1.00 13 167.96 187.95 3.6 6.95 6.97 4 2000.00 20.0 23851.13 24873.12 5258.11 0.99 14 174.92 163.41 3.6 5.69 5.70 3 100.00 18.0 20682.85 20198.09 5375.25. 1.00 15 180.60 190.13 6.3 6.29 6.33 3 100.00 18.0 23996.79 22241.68 5413.69 0.99 16 186.90 198.94 6.3 6.29 6.33 3 100.00 18.0 25028.37 21966.25 5445.80 0.99 17 193.19 128.03 9.1 3.92 3.97 3 100.00 18.0 16062.02 13610.26 5446.09 1.00 18 197.11 130.70 9.1 3.92 3.97 3 100.00 18.0 16357.04 13455.46 5439.20 1.00 19 201.03 158.95 9.1 4.66 4.72 2 0.00 35.0 19868.15 15803.34 5401.58 0.98 20 205.69 216.14 11.8 6.20 6.33 2 0.00 35.0 27017.36 20785.23 5362.04 0.97 21 211.89 220.92 11.8 6.20 6.33 2 0.00 35.0 27615.12 20273.85 5327.27 0.97 22 218.09 143.10 14.5 3.96 4.09 2 0.00 35.0 17887.04 12788.43 5262.14 0.97 23 222.04 144.26 14.5 3.96 4.09 2 0.00 35.0 18031.90 12526.96 5215.42 0.97 24 226.00 159.87 14.5 4.35 4.49 2 0.00 35.0 19968.19 13465.40 5162.97 0.97 25 230.35 197.07 17.3 5.33 5.58 2 0.00 35.0 24571.89 16241.64 5056.58 0.97 26 235.67 197.71 17.3 5.33 5.58 2 0.00 35.0 24604.02 15665.15 4951.92 0.97 27 241.00 53.52 17.3 1.44 1.51 2 0.00 35.0 6653.75 4132.68 4686.57 0.97 28 242.44 220.82 20.0 5.95 6.33 2 0.00 35.0 27454.01 16898.96 4775.54 0.98 29 248.39 219.73 20.0 5.95 6.33 2 0.00 35.0 27317.54 15992.97 4629.78 0.98 30 254.34 140.52 22.7 3.83 4.15 2 0.00 35.0 17469.82 10005.05 4472.25 0.99 31 258.17 139.26 22.7 3.83 4.15 2 0.00 35.0 17312.05 9588.56 4353.26 0.99 32 262.00 144.59 22.7 4.02 4.35 2 0.00 35.0 17973.98 9602.01 4269.37 0.99 33 266.02 202.49 25.5 5.72 6.33 2 0.00 35.0 25168.14 13092.32 4164.52 0.99 34 271.73 197.80 25.5 5.72 6.33 2 0.00 35.0 24582.64 12015.65 4055.19 0.99 35 277.45 86.68 28.2 2.55 2.90 2 0.00 35.0 10771.54 5130.70 3939.02 1.01 36 280.00 139.91 28.2 4.30 4.88 2 0.00 35.0 17381.78 8081.00 3769.28 1.01 37 284.30 129.98 28.2 4.30 4.88 2 0.00 35.0 16140.22 7377.56 3497.11 1.01 38 288.60 148.94 31.0 5.43 6.33 2 0.00 35.0 18482.20 8468.07 3144.81 1.02 39 294.03 131.26 31.0 5.43 6.33 2 0.00 35.0 16271.48 7181.09 2763.21 1.02 40 299.46 55.08 33.7 2.54 3.05 2 0.00 35.0 6821.53 2989.04 2452.63 1.04 41 302.00 59.56 33.7 3.00 3.61 5 0.00 45.0 6551.81 3117.37 1939.11 0.98 42 305.00 23.58 33.7 1.28 1.54 2 0.00 35.0 2915.72 1192.82 2071.58 1.04 43 306.28 62.30 33.7 3.72 4.47 6 50.00 16.0 7717.23 2999.89 1979.42 1.13 44 310.00 48.69 36.4 3.41 4.24 6 50.00 16.0 6065.02 2187.76 1679.47 1.16 45 313.41 71.11 36.4 6.77 8.42 2 0.00 35.0 8888.96 2363.83 1157.62 1.06 46 320.18 17.17 39.2 2.45 3.17 2 0.00 35.0 2146.81 197.45 742.41 1.08 47 322.64 22.09 39.2 7.36 9.50 2 0.00 35.0 2760.95 0.00 313.83 1.08 X -S Area: 5650.05 Path Length: 240.60 X -S Weight: 706850.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case.8 RD.gmf Processed: 30 Jul 2019 16:19:35 DATA: Analysis 1 - Case 8 - Rapid Draw Down Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru. 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 175.00 Profile: 2 (2 points) 0.00 165.00 Profile: 3 (2 points) 0.00 158.00 Profile: 4 (2 points) 0.00 132.00 Profile: 5 (2 points) 0.00 123.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 375.00 175.00 Profile: 9 (2 points) 378.00 175.00 Profile: 10 (2 points) 378.00 165.00 Profile: 11 (2 points) 378.00 158.00 Profile: 12 (2 points) 378.00 132.00 Profile: 13 (2 points) 378.00 123.00 Profile: 14 (2 points) 378.00 100.00 Profile: 15 (2 points) 375.00 97.00 Slope Surface (4 points) Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 378.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 0.00 100.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 125.00 125.00 2 - Sand and Gravel 175.00 6.- Clay 165.00 2 - Sand and Gravel 158.00 6 - Clay 132.00 2 - Sand and Gravel 123.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 175.00 2 - Sand and Gravel 175.00 6 - Clay 165.00 2 - Sand and Gravel 158.00 6 - Clay 132.00 2 - Sand and Gravel 123.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 350.00 175.00 332.00 169.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 130.00 YL: 101.67 XR: 400.00 YR: Centre: XC: 192.49 YC: 405.30 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 30.00 20 R 20.00 50 440.00 175.00 440.00 169.00 175.00 310.00 RESULTS: Analysis 1 - Case 8 - Rapid Draw Down Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.886 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.52 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 130.00 101.67 400.00 175.00 192.49 405.30 310.00 1.522 <-- Critical Surface 2 130.00 101.67 400.00 175.00 192.61 404.86 309.59 1.525 3 130.00 101.67 400.00 175.00 192.73 404.42 309.18 1.527 4 130.00 101.67 400.00 175.00 192.85 403.98 308.78 1.530 5 130.00 101.67 400.00 175.00 192.97 403.54 308.37 1.533 6 130.00 101.67 400.00 175.00 193.09 403.09 307.96 1.536 7 130.00 101.67 400.00 175.00 193.21 402.65 307.55 1.539 8 129.47 101.49 400.00 175.00 192.23 405.07 310.00 1.545 9 130.00 101.67 400.00 175.00 193.33 402.21 307.14 1.545 10 129.47 101.49 400.00 175.00 192.35 404.63 309.59 1.548 11 130.00 101.67 400.00 175.00 193.45 401.77 306.73 1.549 12 129.47 101.49 400.00 175.00 192.47 404.19 309.18 1.550 13 130.00 101.67 400.00 175.00 193.57 401.32 306.33 1.552 14 130.00 101.67 401.58 175.00 193.77 405.04 310.00 1.553 15 129.47 101.49 400.00 175.00 192.59 403.75 308.78 1.553 16 130.00 101.67 400.00 175.00 193.69 400.88 305.92 1.555 17 130.00 101.67 401.58 175.00 193.89 404.59 309.59 1.556 18 130.00 101.67 400.00 175.00 193.81 400.44 305.51 1.558 19 130.00 101.67 401.58 175.00 194.01 404.15 309.18 1.559 20 129.47 101.49 400.00 175.00 192.71 403.30 308.37 1.560 21 130.00 101.67 400.00 175.00 193.93 400.00 305.10 1.561 22 130.00 101.67 401.58 175.00 194.13 403.71 308.78 1.562 23 129.47 101.49 400.00 175.00 192.83 402.86 307.96 1.563 24 130.00 101.67 400.0➢ 175.00 194.05 399.55 304.69 1.565 25 130.00 101.67 401.58 175.00 194.25 403.27 308.37 1.565 26 129.47 101.49 400.00 175.00 192.95 402.42 307.55 1.566 27 120 95 101.32 400.00 175.00 191.98 404.84 310.00 1.568 28 130.00 101.67 400.00 175.00 194.1/ 399.11 304.29 1.568 29 130.00 101.67 401.58 175.00 194.37 402.82 307.96 1.569 30 129 47 101.49 400.00 175.00 193.07 401.98 307.14 1.569 31 128.95 101.32 400.00 175.00 192.10 404.40 309.59 1.570 32 130.00 101.67 400.00 175.00 194.29 398.67 303.88 1.571 33 130.00 101.67 401.58 175.00 194.49 402.38 307.55 1.572 34 129.47 101.49 400.00 175.00 193.19 401.53 306.73 1.572 35 130.00 101.67 400.00 175.00 194.41 398.22 303.47 1.574 36 130.00 101.67 401.58 175.00 194.61 401.94 307.14 1.575 37 129.47 101.49 400.00 175.00 193.32 401.09 306.33 1.575 38 129.47 101.49 401.58 175.00 193.52 404.80 310.00 1.576 39 128.95 101.32 400.00 175.00 192.22 403.96 309.18 1.577 40 130.00 101.67 400.00 175.00 194.53 397.78 303.06 1.578 41 130.00 101.67 401.58 175.00 194.73 401.49 306.73 1.578 42 129.47 101.49 400.00 175.00 193.44 400.65 305.92 1.578 43 129.47 101.49 401.58 175.00 193.64 404.36 309.59 1.579 44 128.95 101.32 400.00 175.00 192.34 403.51 308.78 1.580 45 130.00 101.67 400.00 175.00 194.65 397.33 302.65 1.581 46 130.00 101.67 401.58 175.00 194.85 401.05 306.33 1.581 47 129.47 101.49 400.00 175.00 193.56 400.21 305.51 1.582 48 129.47 101.49 401.58 175.00 193.76 403.92 309.18 1.582 49 130.00 101.67 403.16 175.00 195.05 404.76 310.00 1.583 50 128.95 101.32 400.00 175.00 192.46 403.07 308.37 1.583 51 130.00 101.67 400.00 175.00 194.78 396.89 302.24 1.584 52 130.00 101.67 401.58 175.00 194.97 400.61 305.92 1.585 53 129.47 101.49 400.00 175.00 193.68 399.76 305.10 1.585 54 129.47 101.49 401.58 175.00 193.87 403.48 308.78 1.585 55 130.00 101.67 403.16 175.00 195.17 404.32 309.59 1.586 56 128.95 101.32 400.00 175.00 192.58 402.63 307.96 1.586 57 130.00 101.67 400.00 175.00 194.90 396.44 301.84 1.588 58 130.00 101.67 401.58 175.00 195.09 400.16 305.51 1.588 59 129.47 101.49 400.00 175.00 193.80 399.32 304.69 1.588 60 129.47 101.49 401.58 175.00 193.99 403.03 308.37 1.588 61 130.00 101.67 403.16 175.00 195.29 403.88 309.18 1.589 62 128.95 101.32 400.00 175.00 192.70 402.19 307.55 1.589 63 129.47 101.49 400.00 175.00 193.92 398.87 304.29 1.591 64 130.00 101.67 401.58 175.00 195.21 399.72 305.10 1.591 65 129.47 101.49 401.58 175.00 194.11 402.59 307.96 1.592 66 130.00 101.67 400.00 175.00 195.02 396.00 301.43 1.592 67 130.00 101.67 403.16 175.00 195.41 403.43 308.78 1.592 68 128.95 101.32 400.00 175.00 192.82 401.74 307.14 1.592 69 129.47 101.49 400.00 175.00 194.04 398.43 303.88 1.594 70 128.42 101.14 400.00 175.00 191.72 404.61 310.00 1.594 71 129.47 101.49 401.58 175.00 194.23 402.15 307.55 1.595 72 130.00 101.67 403.16 175.00 195.53 402.99 308.37 1.595 73 130.00 101.67 401.58 175.00 195.33 399.27 304.69 1.595 74 128.95 101.32 400.00 175.00 192.94 401.30 306.73 1.595 i5 130.00 101.67 400.00 175.00 195.14 395.56 301.02 1.596 76 128.42 101.14 400.00 175.00 191.84 404.17 309.59 1.597 77 129.47 101.49 401.58 175.00 194.35 401.70 307.14 1.598 78 129.47 101.49 400.00 175.00 194.16 397.99 303.47 1.598 79 128.95 101.32 400.00 175.00 193.06 400.86 306.33 1.596 80 128.95 101.32 401.58 175.00 193.26 404.57 310.00 1.599 81 130.00 101.67 403.16 175.60 195.65 402.55 307.96 1.599 82 130.00 101.67 401.58 175.80 195.45 398.83 304.29 1.599 83 128.42 101.14 400.00 175.90 191.96 403.72 309.18 1.600 84 130.00 101.67 400.00 175.90 195.26 395.11 300.61 1.600 85 128.95 101.32 400.00 175.90 193.18 400.41 305.92 1.601 66 129.47 101.49 401.58 175.90 194.47 401.26 306.73 1.602 67 128.95 101.32 401.58 175.00 193.38 404.13 309.59 1.602 88 129.47 101.49 400.00 175.00 194.28 397.54 303.06 1.602 89 128.42 101.14 400.00 175.20 192.08 403.26 308.78 1.603 90 130.00 101.67 403.16 175.00 195.77 402.10 307.55 1.603 91 130.00 101.67 401.58 175.00 195.57 398.39 303.88 1.603 92 130.00 101.67 400.00 175.00 195.38 394.67 300.20 1.604 93 130.00 101.67 400.00 175.00 195.50 394.22 299.80 1.605 94 128.95 101.32 401.58 175.00 193.50 403.69 309.18 1.605 95 128.95 101.32 400.00 175.00 193.30 399.97 305.51 1.605 96 129.47 101.49 401.56 175.00 194.59 400.82 306.33 1.606 97 129.47 101.49 403.16 175.00 194.79 404.53 310.00 1.606 98 128.42 101.14 400.00 175.00 192.20 402.84 308.37 1.606 99 129.47 101.49 400.00 175.00 194.40 397.10 302.65 1.606 Critical Failure Surface (circle 1) Intersects: XL: 130.00 YL: 101.67 XR: 400.00 YR: 175.00 Centre: XC: 192.49 YC: 405.30 Radius: R: 310.00 Generated failure surface: (20 points) 130.00 101.67 145.03 98.96 160.18 96.99 175.41 95.77 190.68 95.31 205.95 95.60 221.19 96.63 236.36 98.42 251.43 100.96 266.35 104.23 281.09 108.23 295.62 112.96 309.89 118.39 323.86 124.53 337.56 131.34 350.88 138.82 363.81 146.94 376.33 155.70 388.40 165.06 400.00 175.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 130.00 5.49 -10.2 4.62 4.70 2 0.00 35.0 686.12 348.03 155.12 1.11 2 134.62 16.47 -10.2 4.62 4.70 2 0.00 35.0 2058.35 1044.09 465.37 1.11 3 139.25 36.08 -10.2 5.79 5.88 3 100.00 18.0 4558.58 2267.82 815.99 1.06 4 145.03 71.38 -7.4 7.54 7.60 3 100.00 16:0 9107.65 4491.60 1234.24 1.04 5 152.57 97.71 -7.4 7.54 7.60 3 100.00 18.0 12516.79 6148.29 1693.05 1.04 6 160.11 124.57 -4.6 7.65 7.67 4 2000.00 20.0 15976.39 7798.35 2217.74 1.02 7 167.76 148.74 -4.6 7.65 7.67 4 2000.00 20.0 19072.76 9311.25 2625.92 1.02 8 175.41 171.15 -1.7 7.63 7.64 4 2000.00 20.0 21923.88 10684.57 2922.94 1.01 9 183.04 192.35 -1.7 7.63 7.64 4 2000.00 20.0 24602.91 12008.37 3275.16 1.01 10 190.68 90.04 1.1 3.32 3.32 4 2000.00 20.0 11502.12 5619.21 3430.40 1.00 11 194.00 170.72 1.1 5.98 5.98 4 2000.00 20.0 21748.00 10655.07 3606.41 1.00 12 199.98 181.96 1.1 5.98 5.98 4 2000.00 20.0 23081.77 11356.08 3829.13 1.00 13 205.95 243.68 3.9 7.52 7.54 4 2000.00 20.0 30761.92 15240.75 3967.07 0.99 14 213.48 258.69 3.9 7.52 7.54 4 2000.00 20.0 32482.13 16179.58 4194.03 0.99 15 221.00 117.62 6.6 3.29 3.31 4 2000.00 20.0 14722.90 7388.02 4266.76 0.98 16 224.29 221.81 6.7 6.04 6.08 3 100.00 18.0 27709.49 13936.56 4526.72 0.96 17 230.33 229.66 6.7 6.04 6.D8 3 100.00 16.0 28621.93 14429.76 4676.15 0.98 16 236.36 183.18 9.5 4.69 4.75 3 100.00 16.0 22775.54 11591.13 4764.91 0.98 19 241.05 186.81 9.5 4.69 4.75 3 100.00 18.0 23169.76 11820.62 4847.79 0.98 20 245.74 231.70 9.5 5.69 5.77 2 0.00 35.0 28706.14 14661.04 4864.56 0.94 21 251.43 310.43 12.4 7.46 7.64 2 0.00 35.0 38468.63 19831.66 4921.63 0.93 22 256.89 316.78 12.4 7.46 7.64 2 0.00 35.0 39261.69 20236.97 5023.06 0.93 23 266.35 317.79 15.2 7.37 7.64 2 0.00 35.0 39391.54 20548.24 5049.37 0.92 24 273.72 321.14 15.2 7.37 7.64 2 0.00 35.0 39810.75 20765.09 5103.08 0.92 25 281.09 318.31 18.0 7.26 7.64 2 0.00 35.0 39462.48 20887.27 5081.85 0.91 26 288.35 318.74 18.0 7.26 7.64 2 0.00 35.0 39515.38 20915.04 5088.68 0.91 27 295.62 148.31 20.8 3.38 3.62 2 0.00 35.0 18386.16 9902.36 5031.78 0.91 28 299.00 237.59 20.8 5.45 5.83 2 0.00 35.0 29429.16 15863.83 5003.73 0.91 29 304.45 236.19 20.8 5.45 5.83 2 0.00 35.0 29203.69 15769.89 4966.16 0.91 30 309.89 217.16 23.7 5.05 5.52 2 0.00 35.0 26804.66 14795.11 4863.94 0.91 31 314.95 214.48 23.7 5.05 5.52 2 0.00 35.0 26426.96 14612.45 4796.21 0.91 32 320.00 163.02 23.7 3.88 4.24 6 50.00 16.0 20079.72 11106.42 4962.01 1.01 33 323.88 333.56 26.5 8.12 9.07 6 50.00 16.0 41189.47 23255.56 4844.60 1.02 34 332.00 222.08 26.5 5.56 6.21 6 50.00 16.0 27508.13 15124.30 4720.26 1.02 35 337.56 46.29 29.3 1.18 1.35 6 50.00 16.0 5743.65 3140.65 4624.35 1.04 36 338.73 217.49 29.3 5.63 6.46 2 0.00 35.0 26988.55 14260.70 4260.44 0.91 37 344.37 210.24 29.3 5.63 6.46 2 0.00 35.0 26083.40 13005.24 4092.22 0.91 38 350.00 238.67 31.8 6.91 8.12 2 0.00 35.0 29592.18 14479.56 3729.92 0.92 39 356.91 208.71 32.1 6.91 8.16 2 0.00 35.0 25847.61 12327.15 3242.67 0.92 40 363.81 146.01 35.0 5.59 6.83 2 0.00 35.0 18055.82 8561.64 2747.14 0.92 41 369.41 124.13 35.0 5.59 6.83 2 0.00 35.0 15320.40 6895.44 2317.79 0.92 42 375.00 26.30 35.0 1.33 1.62 5 0.00 45.0 2892.48 1394.40 1760.30 0.84 43 376.33 31.15 37.8 1.67 2.1I 5 0.00 45.0 3426.34 1668.33 1625.98 0.64 44 378.00 22.75 37.8 1.30 1.64 2 0.00 35.0 2797.98 1180.40 1775.64 0.93 45 379.30 68.85 37.8 4.51 5.7I 6 50.00 16.0 8487.65 3297.25 1691.72 1.10 46 383.81 53.05 37.8 4.51 5.71 6 50.00 16.0 6591.48 2049.64 1297.42 1.10 47 388.33 37.40 40.6 4.67 6.15 2 0.00 35.0 4674.40 768.79 753.01 0.94 48 393.00 21.00 40.6 7.00 9.22 2 0.00 - 35.0 2624.38 0.00 268.92 0.94 X -S Area: 8107.40 Path Length: 290.24 X -S Weight: 1009850.12 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case B Full.gmf Processed: 30 Jul 2019 16:20:48 DATA: Analysis 1 - Case 8 - Full Reservoir Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 175.00 Profile: 2 (2 points) 0.00 165.00 Profile: 3 (2 points) 0.00 158.00 Profile: 4 (2 points) 0.00 132.00 Profile: 5 (2 points) 0.00 123.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 375.00 175.00 Profile: 9 (2 points) 378.00 175.00 Profile: 10 (2 points) 378.00 165.00 Profile: 11 (2 points) 378.00 158.00 Profile: 12 (2 points) 378.00 132.00 Profile: 13 (2 points) 378.00 123.00 Profile: 14 (2 points) 378.00 100.00 Profile: 15 (2 points) 375.00 97.00 Slope Surface (4 points) Material beneath: 2 - Sand and Gravel 375.00 175.00 Material beneath: 6 - Clay 375.00 165.00 Material beneath: 2 - Sand and Gravel. 375.00 158.00 Material beneath: 6 - Clay 375.00 132.00 Material beneath: 2 - Sand and Gravel 375.00 123.00 Material beneath: 3 - Weathered Bedrock 375.00 100.00 Material beneath: 4 - Stable Bedrock 375.00 97.00 Material beneath: 5 - Slurry Wall 378.00 175.00 Material beneath: 2 - Sand and Gravel 440.00 175.00 Material beneath: 6 - Clay 440.00 165.00 Material beneath: 2 - Sand and Gravel 440.00 158.00 Material beneath: 6 - Clay 440.00 132.00 Material beneath: 2 - Sand and Gravel 440.00 123.00 Material beneath: 3 - Weathered Bedrock 440.00 100.00 Material beneath: 4 - Stable Bedrock 440.00 97 00 0.00 100.00 Phreatic Surface (4 points) 0.00 169.00 Failure Surface 125.00 100.00 125.00 169.00 350.00 175.00 332.00 169.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 130.00 YL: 101.67 XR: 400.00 YR: Centre: XC: 188.11 YC: 421.43 Radius: R: Variable Restraints Parameter descriptor: XL XR R Range of variation: 10.00 30.00 50.00 Trial positions within range: 20 20 50 440.00 175.00 440.00 169.00 175.00 325.00 RESULTS: Analysis 1 - Case 8 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.571 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.58 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 130.00 101.67 400.00 175.00 188.11 421.43 325.00 2.584 <-- Critical Surface 2 130.00 101.67 400.00 175.00 188.41 420.34 323.98 2.614 3 130.00 101.67 400.00 175.00 188.70 419.25 322.96 2.636 4 130.00 101.67 400.00 175.00 189.00 416.15 321.94 2.662 5 129.47 101.49 400.00 175.00 187.85 421.21 325.00 2.672 6 130.00 101.67 401.58 175.00 189.41 421.19 325.00 2.677 7 130.00 101.67 400.00 175.00 189.30 417.06 320.92 2.688 8 129.47 101.49 400.00 175.00 188.15 420.11 323.98 2.697 9 130.00 101.67 401.58 175.00 189.71 420.10 323.98 2.703 10 130.00 101.67 400.00 175.00 189.59 415.96 319.90 2.714 11 129.47 101.49 400.00 175.00 188.44 419.02 322.96 2.722 12 130.00 101.67 401.58 175.00 190.00 419.00 322.96 2.729 13 130.00 101.67 400.00 175.00 189.89 414.87 318.88 2.740 14 129.47 101.49 400.00 175.00 188.74 417.93 321.94 2.747 15 130.00 101.67 401.58 175.00 190.30 417.91 321.94 2.755 16 128.95 101.32 400.00 175.00 187.59 420.98 325.00 2.758 17 129.47 101.49 401.58 175.00 169.15 420.97 325.00 2.762 18 130.00 101.67 400.00 175.00 190.19 413.77 317.86 2.766 19 130.00 101.67 403.16 175.00 190.71 420.95 325.00 2.769 20 129.47 101.49 400.00 175.00 189.04 416.83 320.92 2.773 21 130.00 101.67 401.58 175.00 190.59 416.81 320.92 2.781 22 128.95 101.32 400.00 175.00 187.89 419.89 323.98 2.782 23 129.47 101.49 401.58 175.00 189.45 419.87 323.98 2.787 24 130.00 101.67 400.00 175.00 190.49 412.68 316.84 2.793 25 130.00 101.67 403.16 175.00 191.00 419.85 323.98 2.793 26 129.47 101.49 400.00 175.00 189.34 415.74 319.90 2.798 27 128.95 101.32 400.00 175.00 188.18 418.80 322.96 2.807 28 130.00 101.6/ 401.58 175.00 190.89 415.72 319.90 2.808 29 129.47 101.49 401.58 175.00 189.74 418.78 322.96 2.812 30 130.00 101.67 403.16 175.00 191.30 418.76 322.96 2.818 31 130.00 101.67 400.00 175.00 190.79 411.58 315.82 2.820 32 129.47 101.49 400.00 175.00 189.63 414.64 318.88 2.824 33 128.95 101.32 400.00 175.00 188.48 417.70 321.94 2.831 34 130.00 101.67 401.58 175.00 191.19 414.62 318.88 2.835 35 129.47 101.49 401.58 175.00 190.04 417.68 321.94 2.839 36 130.00 101.67 403.16 175.00 191.59 417.66 321.94 2.843 37 128.95 101.32 401.58 175.00 188.89 420.74 325.00 2.845 38 128.42 101.14 400.00 175.00 187.33 420.76 325.00 2.845 39 130.00 101.67 400.00 175.00 191.08 410.48 314.60 2.848 40 129.47 101.49 400.00 175.00 189.93 413.55 317.86 2.851 41 129.47 101.49 403.16 175.00 190.45 420.72 325.00 2.851 42 130.00 101.67 401.58 175.00 191.48 413.52 317.86 2.861 43 128.42 101.14 400.00 175.00 187.63 419.66 323.98 2.863 44 130.00 101.67 404.74 175.00 192.00 420.70 325.00 2.865 45 129.47 101.49 401.58 175.00 190.33 416.59 320.92 2.865 46 128.95 101.32 400.00 175.00 188.78 416.61 320.92 2.867 47 129.47 101.49 403.16 175.00 190.74 419.63 323.98 2.875 48 130.00 101.67 400.00 175.00 191.38 409.38 313.78 2.875 49 130.00 101.67 403.16 175.00 191.88 416.56 320.92 2.875 50 130.00 101.67 401.58 175.00 191.78 412.42 316.84 2.876 51 129.47 101.49 400.00 175.00 190.23 412.45 316.84 2.877 52 128.95 101.32 401.58 175.00 189.19 419.65 323.98 2.879 53 128.95 101.32 400.00 175.00 189.08 415.51 319.90 2.884 54 128.42 101.14 400.00 175.00 187.92 418.57 322.96 2.884 55 130.00 101.67 400.00 175.00 191.68 408.28 312.76 2.887 56 128.95 101.32 401.58 175.00 189.48 416.55 322.96 2.896 57 130.00 101.67 404.74 175.00 192.29 419.60 323.98 2.899 58 130.00 101.67 403.16 175.00 192.18 415.46 319.90 2.901 59 130.00 101.67 401.58 175.00 192.08 411.32 315.82 2.903 60 128.95 101.32 400.00 175.00 189.37 414.42 318.88 2.905 61 130.00 101.67 404.74 175.00 192.58 418.50 322.96 2.905 62 128.42 101.14 400.00 175.00 188.22 417.48 321.94 2.905 63 129.47 101.49 400.00 175.00 190.83 410.25 314.80 2.906 64 129.47 101.49 401.58 175.00 190.63 415.49 319.90 2.906 65 129.47 101.49 403.16 175.00 191.03 418.53 322.96 2.907 66 127.89 100.96 400.00 175.00 187.07 420.53 325.00 2.907 67 129.47 101.49 400.00 175.00 190.53 411.35 315.82 2.909 68 129.47 101.49 401.58 175.00 190.93 414.39 318.88 2.910 69 128.95 101.32 400.00 175.00 189.67 413.32 317.86 2.917 70 128.42 101.14 401.58 175.00 188.63 420.51 325.00 2.916 71 128.95 101.32 401.58 175.00 189.78 417.46 321.94 2.918 72 130.00 101.67 403.16 175.00 192.47 414.36 318.88 2.920 73 126.95 101.32 403.16 175.00 190.18 420.49 325.00 2.920 74 128.95 101.32 401.58 175.00 190.07 416.36 320.92 2.925 75 128,42 101.14 400.00 175.00 188.52 416.38 320.92 2.927 76 129.47 101.49 404.74 175.00 191.74 420.47 325.00 2.928 77 127.89 100.96 400.00 175.00 187.37 419.44 323.98 2.928 78 129.47 101.49 401.58 175.00 191.22 413.29 317.86 2.928 79 129.47 101.49 403.16 175.00 191.33 417.43 321.94 2.931 80 130.00 101.67 401.58 175.00 192.37 410.22 314.80 2.931 81 128.42 101.14 400.00 175.00 188.82 415.29 319.90 2.931 82 130.00 101.67 400.00 175.00 191.98 407.18 311.73 2.931 83 128.42 101.14 401.58 175.00 188.93 419.42 323.98 2.936 64 128.95 101.32 400.00 175.00 189.97 412.22 316.84 2.938 85 128.42 101.14 401.58 175.00 189.22 418.32 322.96 2.938 86 128.95 101.32 403.16 175.00 190.48 419.40 323.98 2.938 87 129.47 101.49 400.00 175.00 191.13 409.15 313.78 2.939 88 130.00 101.67 400.00 175.00 192.28 406.08 310.71 2.940 89 130.00 101.67 401.58 175.00 192.67 409.12 313.78 2.940 90 129.47 101.49 401.58 175.00 191.52 412.19 316.84 2.942 91 130.00 101.67 400.00 175.00 192.58 404.97 309.69 2.942 92 129.47 101.49 403.16 175.00 191.62 416.33 320.92 2.943 93 127.89 100.96 400.00 175.00 187.67 418.34 322.96 2.944 94 130.00 101.67 404.74 175.00 192.88 417.41 321.94 2.946 95 128.95 101.32 401.58 175.00 190.37 415.26 319.90 2.947 96 130.00 101.67 403.16 175.00 192.77 413.26 317.86 2.947 97 130.00 101.67 404.74 175.00 193.17 416.31 320.92 2.948 98 130.00 101.67 403.16 175.00 193.07 412.16 316.84 2.949 99 128.95 101.32 400.00 175.00 190.27 411.12 315.82 2.952 Critical Failure Surface (circle 1) Intersects: XL: 130.00 YL: 101.67 XR: 400.00 YR: 175.00 Centre: XC: 188.11 YC: 421.43 Radius: R: 325.00 Generated failure surface: (20 points) 130.00 101.67 145.04 99.30 160.17 97.63 175.36 96.68 190.58 96.44 205.79 96.91 220.97 98.09 236.07 99.99 251.07 102.59 265.93 105.88 280.62 109.87 295.10 114.55 309.35 119.89 323.34 125.90 337.03 132.56 350.39 139.85 363.40 147.75 376.02 156.26 388.23 165.35 400.00 175.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) Slice X -S Base PoreWater Normal Test X -Deft Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 130.00 6.86 -9.0 5.29 5.35 2 0.00 35.0 857.61 22625.81 4312.47 1.06 2 135.29 20.58 -9.0 5.29 5.35 2 0.00 35.0 2572.83 22904.11 4534.20 1.06 3 .140.57 28.05 -9 ,.0 4.46 4.52 3 100.00 18.0 3531.89 19550,37 4741.01 1.03 4 145.04 68.53 -6.3 /.57 7.61 3 100.00 18.0 8701.79 33300.12 4972.95 1.02 5 152.60 93.90 -6.3 7.57 7.61 3 100.00 18.0 11973.59 33695.05 5251.21 1.02 6 160.17 76.11 -3.6 5.04 5.05 3 100.00 18.0 9717.12 22557.44 5458.36 1.01 165.21 . 86.18 -3.6 5.04 5.05 3 100.00 16.0 11002.45 22657.33 5609.28 1.01 8 170.25 97.45 -3.6 5.10 5.11 4 2000.00 20.0 12438.66 23023.20 5808.83 1.01 9 175.36 163.11 -0.9 7.61 7.61 4 2000.00 20.0 20800.48 34373.93 5927.82 1.00 10 182.97 183.33 -0.9 7.61 7.61 4 2000.00 20.0 23342.54 34431.13 6103.97 1.00 11 190.58 88.78 1.8 3.42 3.42 4 2000.00 20.0 11290.25 15494.97 6173.11 1.00 12 194.00 161.22 1.8 5.90 5.90 4 2000.00 20.0 20440.67 26633.86 6244.69 1.00 13 199.90 171.73 1.8 5.90 5.90 4 2000.00 20.0 21678.92 26566.55 6331.66 1.00 14 205.79 34.47 4.5 1.14 1.15 4 2000.00 20.0 4341.04 5152.91 6331.51 0.99 15 206.93 218.96 4.5 7.02 7.04 3 100.00 18.0 27483.29 31498.20 6423.38 0.99 16 213.95 231.53 4.5 7.02 7.04 3 100.00 18.0 28911.00 31257.92 6480.03 0.99 17 220.97 261.89 7.1 7.55 7.61 3 100.00 18.0 32568.85 33448.65 6505.70 0.99 16 226.52 273.75 7.1 7.55 7.61 3 100.00 18.0 33937.13 32999.14 6528.53 0.99 19 236.07 282.23 9.8 7.50 7.61 2 0.00 35.0 34941.34 32465.94 6473.23 0.97 20 243.57 291.23 9.8 7.50 7.61 2 0.00 35.0 36066.75 31849.00 6463.96 0.97 21 251.07 296.09 12.5 7.43 7.61 2 0.00 35.0 36676.57 31148.97. 6403.53 0.97 22 258.50 302.24 12.5 7.43 7.61 2 0.00 35.0 37445.65 30366.09 6349.53 0.97 23 265.93 303.47 15.2 7.34 7.61 2 0.00 35.0 37603.45 29500.76 6243.61 0.97 24 273.27 306.80 15.2 7.34 7.61 2 0.00 35.0 38019.83 28553.53 6145.57 0.97 25 280.62 304.49 17.9 7.24 7.61 2 0.00 35.0 37735.04 27524.97 5995.32 0.97 26 287.86 305.05 17.9 7.24 7.61 2 0.00 35.0 37805.52 26415.35 5854.00 0.97 27 295.10 163.97 20.6 3.90 4.16 2 0.00 35.0 20320.80 13953.71 5702.27 0.97 28 299.00 216.84 20.6 5.18 5.53 2 0.00 35.0 26849.73 17949.27 5581.37 0.97 29 304.18 215.72 20.6 5.18 5.53 2 0.00 35.0 26665.17 17279.26 5440.05 0.97 30 309.35 298.15 23.2 7.23 7.87 2 0.00 35.0 36775.27 23365.14 5217.06 0.97 31 316.59 138.82 23.2 3.41 3.71 6 50.00 16.0 17101.32 10485.70 5178.46 1.04 32 320.00 134.85 23.2 3.34 3.64 6 50.00 16.0 16625.60 9939.24 5072.78 1.04 33 323.34 342.51 25.9 8.66 9.63 6 50.00 16.0 42338.25 24632.68 4846.18 1.06 34 332.00 149.97 25.9 3.69 4.32 6 50.00 16.0 18591.83 10231.02 4651.71 1.06 35 335.89 43.67 25.9 1.14 1.27 2 0.00 35.0 5419.27 2912.50 4455.86 0.98 36 337.03 242.77 28.6 6.49 7.39 2 0.00 35.0 30118.92 15985.12 4324.66 0.99 37 343.51 233.84 28.6 6.49 7.39 2 0.00 35.0 29003.27 14354.11 4146.37 0.99 38 350.00 223.45 31.1 6.70 7.83 2 0.00 35.0 27696.81 13361.04 3793.01 1.00 39 356.70 196.17 31.3 6.70 7.84 2 0.00 35.0 24286.59 11390.35 3318.22 1.00 40 363.40 146.72 34.0 5.80 7.00 2 0.00 35.0 18137.49 8421.93 2829.65 1.02 41 369.20 124.04 34.0 5.80 7.00 2 0.00 35.0 15302.12 6715.02 2378.68 1.02 42 375.00 55.15 35.6 3.00 3.70 5 0.00 45.0 6066.19 2856.97 1749.68 0.96 43 378.00 75.39 36.7 4.88 6.08 6 50.00 16.0 9291.36 3587.28 1790.34 1.15 44 382.88 57.67 36.7 4.88 6.08 6 50 00 16.0 7163.84 2208.09 1370.36 1.15 45 387.76 39.46 39.1 4.92 6.34 2 0.00 35.0 4932.71 798.52 844.08 1.06 46 392.68 21.95 39.3 7.32 9.46 2 0.00 35.0 2744.25 0.00 306.84 1.06 X -S Area: 7779.15 Path Length: 289.20 X -S Weight: 367315.06 GALENA 7.2 Analysis Results. Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 9 RD.gmf Processed: 30 Jul 2019 16:59:05 DATA: Analysis 1 - Case 9 - Rapid Draw Down Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (19 profiles) Profile: 1 0.00 Profile: 2 0.00 Profile: 3 0.00 Profile: 4 0.00 Profile: 5 0.00 Profile: 6 0.00 Profile: 7 0.00 Profile: 8 0.00 Profile: 9 0.00 Profile: 10 425.00 Profile: 11 428.00 Profile: 12 428.00 Profile: 13 428.00 Profile: 14 428.00 Profile: 15 428.00 Profile: 16 428.00 Profile: 17 428.00 Profile: 18 428.00 Profile: 19 425.00 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 points) 200.00 points) 198.00 points) 189.00 points) 151.00 points) 148.00 points) 125.00 points) 122.00 points) 100.00 points) 97.00 points) 200.00 points) 200.00 points) 198.00 points) 189.00 points) 151.00 points) 148.00 points) 125.00 points) 122.00 points) 100.00 points) 97.00 Slope Surface (4 points) - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 428.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 0.00 100.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and Gravel 189.00 6 - Clay 151 00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and Gravel 189.00 6 - Clay 151.00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 100.00 100.00 400.00 200.00 382.00 194.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 102.00 YL: 100.67 XR: 458.21 YR: Centre: XC: 198.70 YC: 442.24 Radius: R: 470.00 200.00 470.00 194.00 200.00 355.00 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 4.00 4.00 30.00 20 20 50 RESULTS: Analysis 1 - Case 9 - Rapid Draw Down Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle generation Techniques Initial failure surface approximation - Factor of Safety: 1.678 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.63 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 102.00 100.67 458.21 200.00 198.70 442.24 355.00 1.634 K-- Critical Surface 2 100.11 100.04 458.00 200.00 198.06 439.98 353.78 1.634 3 102.00 100.67 458.42 200.00 198.87 442.19 355.00 1.634 4 102.00 100.67 458.21 200.00 198.90 441.55 354.39 1.634 5 102.00 100.67 458.00 200.00 198.92 440.91 353.78 1.635 6 100.11 100.04 458.21 200.00 198.04 440.62 354.39 1.635 7 100.11 100.04 458.00 200.00 197.87 440.67 354.39 1.635 8 102.00 100.67 458.63 200.00 199.04 442.15 355.00 1.635 9 101.79 100.60 458.21 200.00 198.61 442.14 355.00 1.635 10 100.11 100.04 458.63 200.00 196.17 441.22 355.00 1.635 11 100.11 100.04 458.42 200.00 198.01 441.27 355.00 1.636 12 102.00 100.67 458.00 200.00 198.54 442.29 355.00 1.636 13 100.11 100.04 458.21 200.00 197.84 441.32 355.00 1.636 14 100.11 100.04 458.00 200.00 197.68 441.36 355.00 1.636 15 101.79 100.60 458.42 200.00 198.77 442.09 355.00 1.636 16 102.00 100.67 458.00 200.00 198.73 441.60 354.39 1.637 17 101.79 100.60 458.00 200.00 198.44 442.19 355.00 1.638 18 101.79 100.60 458.00 200.00 198.63 441.50 354.39 1.639 19 102.00 100.67 458.42 200.00 199.06 441 50 354.39 1.639 20 102.00 100.67 458.21 200.00 199.09 440.86 353.78 1.639 21 102.00 100.67 458.00 200.00 199.12 440.21 353.16 1.639 22 101.58 100.53 458.00 200.00 196.35 442.08 355.00 1.639 23 102.00 100.67 458.84 200.00 199.20 442.10 355.00 1.640 24 101.79 100.60 458.21 200.00 198.80 441.45 354.39 1.640 25 102.00 100.67 458.63 200.00 199.23 441.46 354.39 1.640 26 101.79 100.60 458.00 200.00 198.83 440.80 353.78 1.640 27 102.00 100.67 458.42 200.00 199.26 440.81 353.78 1.640 28 102.00 100.67 458.21 200.00 199.28 440.17 353.16 1.640 29 102.00 100.67 458.00 200.00 199.31 439.52 352.55 1.640 30 101.79 100.60 458.63 200.00 198.94 442.04 355.00 1.641 31 101.58 100.53 458.21 200.00 198.51 442.04 355.00 1.641 32 102.00 100.67 459.05 200.00 199.37 442.05 355.00 1.641 33 100.11 100.04 458.00 200.00 198.26 439.29 353.16 1.641 34 100.11 100.04 458.21 200.00 198.23 439.93 353.78 1.641 35 100.11 100.04 458.42 200.00 198.20 440.58 354.39 1.641 36 101.79 100.60 458.42 200.00 198.97 441.40 354.39 1.641 37 101.58 100.53 458.00 200.00 198.54 441.39 354.39 1.641 38 102.00 100.67 458.84 200.00 199.40 441.41 354.39 1.641 39 101.79 100.60 458.21 200.00 198.99 440.76 353.78 1.641 40 102.00 100.67 458.63 200.00 199.42 440.76 353.78 1.641 41 101.79 100.60 458.00 200.00 199.02 440.11 353.16 1.641 42 102.00 100.67 458.42 200.00 199.45 440.12 353.16 1.641 43 102.00 100.67 458.21 200.00 200.64 435.31 348.88 1.641 44 102.00 100.67 458.21 200.00 199.47 439.47 352.55 1.641 45 101.79 100.60 458.00 200.00 200.38 435.26 348.88 1.641 46 102.00 100.67 458.00 200.0D 199.50 438.83 351.94 1.641 47 102.00 100.67 458.00 200.00 200.47 435.36 348.88 1.641 48 100.11 100.04 458.00 200.00 198.45 438.59 352.55 1.641 49 100.11 100.04 458.21 200.00 198.42 439.24 353.16 1.641 50 102.00 100.67 458.63 200.00 200.77 435.91 349.49 1.641 51 100.11 100.04 458.42 200.00 198.40 439.88 353.78 1.641 52 100.11 100.04 458.63 200.00 198.37 440.53 354.39 1.641 53 100.11 100.04 458.64 200.00 198.34 441.17 355.00 1.641 54 101.58 100.53 458.42 200.00 198.68 441.99 355.00 1.642 55 101.79 100.60 458.84 200.00 199.11 442.00 355.00 1.642 56 102.00 100.67 458.42 200.00 200.61 435.96 349.49 1.642 57 101.58 100.53 456.21 200.00 198.70 441.34 354.39 1.642 58 101.79 100.60 458.63 200.00 199.13 441.35 354.39 1.642 59 102.00 100.67 459.05 200.00 199.56 441.36 354.39 1.642 60 102.00 100.67 459.26 200.00 199.54 442.01 355.00 1.642 61 102.00 100.67 458.84 200.00 199.59 440.72 353.78 1.642 62 101.58 100.53 458.00 200.00 196.73 440.70 353.78 1.642 63 101.79 100.60 458.42 200.00 199.16 440.71 353.78 1.642 64 101.79 100.60 458.21 200.00 200.35 435.90 349.49 1.642 65 102.00 100.67 458.21 200.00 200.44 436.01 349.49 1.642 66 101.79 100.60 458.21 200.00 199.19 440.06 353.16 1.642 67 102.00 100.67 458.63 200.00 199.61 440.07 353.16 1.642 68 101.58 100.53 456.00 200.00 200.09 435.85 349.49 1.642 69 101.79 100.60 456.00 200.00 199.21 439.42 352.55 1.642 70 101.79 100.60 458.00 200.00 200.16 435.95 349.49 1.642 71 102.00 100.67 458.42 200.80 199.64 439.43 352.55 1.642 72 102.00 100.67 458.0D 200.80 200.28 436.05 349.49 1.642 73 102.00 100.67 459.05 200.80 200.91 436.51 350.10 1.642 74 102.00 100.67 458.84 200.80 200.75 436.55 350.10 1.642 75 100.11 100.04 458.00 200.80 198.64 437.90 351.94 1.642 76 100.11 100.04 458.21 200.80 198.62 438.54 352.55 1.642 77 100.11 100.04 458.42 200.00 198.59 439.19 353.16 1.642 78 100.11 100.04 459.05 200.00 198.51 441.12 355.00 1.642 79 100.11 100.04 458.63 200.00 198.56 439.83 353.78 1.642 80 102.00 100.67 458.21 200.00 199.67 438.78 351.94 1.642 81 100.11 100.04 458.84 200.00 198.53 440.48 354.39 1.642 62 101.79 100.60 458.63 200.00 200.49 436.50 350.10 1.642 83 102.00 100.67 458.63 200.00 200.58 436.60 350.10 1.642 84 102.00 100.67 458.00 200.00 199.70 438.14 351.33 1.642 85 101.79 100.60 458.42 200.00 200.32 436.55 350.10 1.642 86 102.00 100.67 458.42 200.00 200.41 436.65 350.10 1.642 87 101.58 100.53 458.63 200.00 198.84 441.94 355.00 1.643 88 101.79 100.60 459.05 200.00 199.27 441.95 355.00 1.643 89 101.37 100.46 458.21 200.00 198.42 441.93 355.00 1.643 90 101.79 100.60 458.84 200.00 199.30 441.31 354.39 1.643 91 101.58 100.53 458.21 200.00 200.06 436.49 350.10 1.643 92 101.58 100.53 458.42 200.00 198.87 441.30 354.39 1.643 93 101.79 100.60 458.21 200.20 200.15 436.60 350.10 1.643 94 101.37 100.46 458.00 200.00 198.44 441.29 354.39 1.643 95 102.00 100.67 458.21 200.00 200.25 436.70 350.10 1.643 96 102.00 100.67 459.47 200.20 199.70 441.96 355.00 1.643 97 101.58 100.53 458.21 200.00 198.90 440.65 353.78 1.643 98 101.79 100.60 458.63 200.20 199.33 440.66 353.78 1.643 99 102.00 100.67 459.26 200.20 200.88 437.15 350.71 1.643 Critical Failure Surface (circle 1) Intersects: XL: 102.00 YL: 100.67 XR: 458.21 YR: 200.00 Centre: XC: 198.70 YC: 442.24 Radius: R: 355.00 Generated failure surface: (20 points) 102.00 100.67 121.85 95.66 141.95 91.61 162.24 89.12 182.66 87.60 203.12 8/.2t 223.57 86.11 243.94 90.14 264.16 93.33 284.16 97.66 303.68 103.18 323.25 109.81 342.20 117.54 360.68 126.35 378.61 136.21 395.95 '47.09 412.64 158.94 428.6? 171.75 44.82 185.45 458.21 200.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 49 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 102.00 2.05 -14.2 2.64 2.73 2 0.00 35.0 255.70 131.64 102.61 1.16 2 104.64 19.56 -14.2 5.95 6.13 3 100.00 18.0 2516.52 1258.84 450.89 1.09 3 110.59 40.27 -14.2 5.95 6.13 3 100.00 18.0 5248.25 2591.74 922.98 1.09 4 116.54 53.45 -14.2 5.31 5.46 4 2000.00 20.0 6993.45 3439.95 1685.30 1.09 5 121.85 143.34 -10.9 10.05 10.23 4 2000.00 20.0 18770.24 9107.24 2156.15 1.06 6 131.90 196.38 -10.9 10.05 10.23 4 2000.00 20.0 25710.77 12477.53 2862.75 1.06 7 141.95 248.98 -7.5 10.15 10.23 4 2000.00 20.0 32561.01 15671.83 3427.44 1.04 8 152.10 296.93 -7.5 10.15 10.23 4 2000.00 20.0 38773.18 18690.17 4049.37 1.04 9 162.24 121.71 -4.2 3.76 3.77 4 2000.00 20.0 15875.81 7615.37 4355.01 1.02 10 166.00 314.94 -4.2 9.00 9.02 4 2000.00 20.0 40955.41 19706.43 4682.74 1.02 11 175.00 293.90 -4.2 7.66 7.68 4 2000.00 20.0 38105.85 18389.55 5112.97 1.02 12 182.66 427.10 -0.9 10.23 10.23 4 2000.00 20.0 55277.12 26654.56 5432.16 1.00 13 192.89 463.72 -0.9 10.23 10.23 4 2000.00 20.0 59882.38 28940.09 5683.02 1.00 14 203.12 496.96 2.4 10.23 10.23 4 2000.00 20.0 64014.83 31036.66 6180.53 0.99 15 213.35 527.50 2.4 10.23 10.23 4 2000.00 20.0 67762.86 32943.80 6545.41 0.99 16 223.57 552.71 5.7 10.18 10.23 4 2000.00 20.0 70790.25 34658.53 6754.71 0.98 17 233.76 576.99 5.7 10.18 10.23 4 2000.00 20.0 73660.20 36180.90 7033.62 0.98 16 243.94 531.08. 9.0 9.06 9.17 4 2000.00 20.0 67507.98 33550.32 7138.12 0.98 19 253.00 674.32 9.0 11.16 11.30 4 2000.00 20.0 85303.88 42598.91 7324.06 0.98 20 264.16 521.94 12.3 8.43 8.63 4 2000.00 20.0 65765.32 33331.09 7360.90 0.98 21 272.60 530.17 12.3 . 8.43 8.63 4 2000.00 20.0 66546.57 33856.77 7452.06 0.98 22 281.03 198.94 12.3 3.13 3.21 3 100.00 18.0 24907.27 12704.67 7774.88 0.98 23 284.16 531.53 15.6 8.31 8.63 3 100.00 18.0 66346.63 34433.25 7754.23 0.98 24 292.48 735.14 15.6 11.40 11.84 2 0.00 35.0 91550.56 47623.04 7601.00 0.93 25 303.88 626.89 18.9 9.68 10.23 2 0.00 35.0 78071.36 41344.01 7547.78 0.92 26 313.56 626.07 18.9 9.68 10.23 2 0.00 35.0 77968.60 41289.79 7537.85 0.92 27 323.25 608.94 22.2 9.48 10.23 2 0.00 35.0 75832.91 41037.05 7407.98 0.92 28 332.72 602.24 22.2 9.48 10.23 2 0.00 35.0 74995.97 40585.83 7326.25 0.92 29 342.20 585.30 25.5 9.36 10.37 2 0.00 35.0 72882.02 40462.79 7126.53 0.92 30 351.56 386.30 25.5 6.29 6.97 6 50.00 16.0 48145.91 26705.43 7344.18 1.02 31 357.85 171.54 25.5 2.82 3.13 2 0.00 35.0 21400.19 11858.82 6935.71 0.92 32 360.68 378.54 28.8 6.32 7.22 2 0.00 35.0 47222.70 26954.64 6755.95 0.92 33 367.00 672.69 28.8 11.61 13.25 2 0.00 35.0 83799.98 47900.24 6528.70 0.92 34 378.61 190.18 32.1 3.39 4.08 2 0.00 35.0 23646.48 14009.17 6246.40 0.93 35 382.00 328.72 32.1 6.00 7.00 2 0.00 35.0 40819 96 23772.52 6072.84 0.93 36 388.00 318.13. 32.1 6.00 7.08 2 0.00 35.0 39436.87 22108.85 5841.39 0.93 37 394.00 101.29 32.1 1.95 2.31 2 0.00 35.0 12544.64 6839.25 5689.28 0.93 38 395.95 205.57 35.4 4.05 4.96 6 50.00 16.0 25464.27 14088.46 5890.27 1.09 39 400.00 72.34 35.4 1.46 1.79 6 50.00 16.0 8973.53 4867.51 5742.83 1.09 40 401.46 503.23 35.4 11.18 13.71 2 0.00 35.0 62401.44 33393.20 4848.29 0.94 41 412.64 238.47 38.7 6.18 7.92 2 0.00 35.0- 29530.95 16104.22 4075.60 0.95 42 418.82 207.85 38.7 6.18 7.92 2 0.00 35.0 25702.95 13655.29 3535.63 0.95 43 425.00 89.84 38.7 3.00 3.84 5 0.00 45.0 9881.89 5744.51 2701.59 0.86 44 428.00 199.63 41.8 7.91 10.60 2 0.00 35.0 24597.37 12732.02 2581.48 0.97 45 435.91 143.28 42.0 7.91 10.64 2 0.00 35.0 17553.90 8048.11 1811.87 0.97 46 443.82 44.91 45.3 3.51 5.00 2 0.00 35.0 5455.28 2113.77 1210.68 0.99 47 447.33 42.03 45.3 4.94 7.03 6 50.00 16.0 5093.01 1097.00 871.97 1.21 48 452.28 15.82 45.3 3.96 5.63 6 50.00 16.0 1938.32 0.00 389.85 1.21 49 456.23 1.98 45.3 1.98 2.81 2 0.00 35.0 247.24 0.00 87.20 0.99 X -S Area: 15861.40 Path Length: 388.91 X -S Weight: 1998690.00 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 9 Full.gmf Processed: 30 Jul 2019 .17:00:23 - DATA: Analysis 1 - Case 9 - Full Reservoir Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (19 profiles) Profile: 1 0.00 Profile: 2 0.00 Profile: 3 0.00 Profile: 4 0.00 Profile: 5 0.00 Profile: 6 0.00 Profile: 7 0.00 Profile: 8 0.00 Profile: 9 0.00 Profile: 10 425.00 Profile: 11 428.00 Profile: 12 428.00 Profile: 13 428.00 Profile: 14 428.00 Profile: 15 428.00 Profile: 16 428.00 Profile: 17 428.00 Profile: 18 428.00 Profile: 19 425.00 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 points) 200.00 points) 198.00 points) 189.00 points) 151.00 points) 148.00 points) 125.00 points) 122.00 points) 100.00 points) 97.00 points) 200.00 points) 200.00 points) 198.00 points) 189.00 points) 151.00 points) 148.00 points) 125.00 points) 122.00 points) 100.00 points) 97.00 Slope Surface (4 points) Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 428.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 0.00 100.00 Phreatic Surface (4 points) 0.00 194.00 Failure Surface 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and 189.00 6 - Clay 151.00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and Gravel 189.00 6 - Clay 151.00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 100.00 194.00 Gravel 400.00 200.00 382.00 194.00 470.00 200.00 470.00 194.00 Initial circular surface for critical search defined by: XL,XR.,R Intersects: XL: 100.11 YL: 100.04 XR: 458.00 YR: 200.00 Centre: XC: 197.68 YC: 441.36 Radius: R: 355.00 Variable Restraints Parameter descriptor:' Range of variation: Trial positions within range: XL XR R 4.00 4.00 30.00 20 20 50 RESULTS: Analysis 1 - Case 9 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.308 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.42 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 100.11 100.04 458.00 200.00 197.68 441.36 355.00 2.424 2 100.11 100.04 458.21 200.00 197.84 441.32 355.00 2.425 3 100.11 100.04 458.00 200.00 197.87 440.67 354.39 2.425 4 100.11 100.04 458.42 200.00 198.01 441.27 355.00 2.426 5 100.11 100.04 458.21 200.00 198.04 440.62 354.39 2.426 6 100.11 100.04 458.00 200.00 198.06 439.98 353.78 2.427 7 100.11 100.04 458.63 200.00 198.17 441.22 355.00 2.427 8 100.11 100.04 458.42 200.00 198.20 440.58 354.39 2.436 9 100.11 100.04 458.21 200.00 198.23 439.93 353.78 2.437 10 100.11 100.04 458.84 200.00 198.34 441.17 355.00 2.438 11 100.11 100.04 458.00 200.00 198.26 439.29 353.16 2.439 12 100.11 100.04 458.63 200.00 198.37 440.53 354.39 2.439 13 100.11 100.04 458.42 200.00 198.40 439.88 353.78 2.440 14 100.11 100.04 459.05 200.00 198.51 441.12 355.00 2.440 15 100.11 100.04 458.21 200.00 198.42 439.24 353.16 2.441 16 100.11 100.04 458.84 200.00 198.53. 440.48 354.39 2.442 17 100.11 100.04 458.00 200.00 198.45 438.59 352.55 2.442 18 100.11 100.04 458.63 200.00 196.56 439.83 353.78 2.443 19 100.1_7 100.04 459.26 200.00 198.67 441.08 355.00 2.443 20 100.11 100.04 458.42 200.00 198.59 439.19 353.16 2.444 21 100.11 100.04 459.05 200.00 198.70 440.43 354.39 2.444 22 100.11 100.04 458.21 200.00 198.62 438.54 352.55 2.445 23 100.11 100.04 458.84 200.00 198.73 439.79 353.78 2.445 24 100.11 100.04 459.47 200.00 198.84 441.03 355.00 2.446 25 100.11 100.04 458.00 200.00 198.64 437.90 351.94 2.446 26 100.11 100.04 458.63 200.00 198.75 439.14 353.16 2.447 27 100.11 100.04 459.26 200.00 198.87 440.38 354.39 2.447 28 100.11 100.04 458.42 200.00 198.78 438.49 352.55 2.448 29 100.11 100.04 459.05 200.00 198.89 439.74 353.78 2.448 30 100.11 100.04 459.68 200.00 199.01 440.98 355.00 2.449 31 100.11 100.04 458.21 200.00 198.81 437.85 351.94 2.449 32 100.11 100.04 458.84 200.00 198.92 439.09 353.16 2.449 33 100.11 100.04 459.47 200.00 199.03 440.34 354.39 2.450 34 100.11 100.04 458.00 200.00 198.84 437.20 351.33 2.450 35 100.11 100.04 456.63 200.00 198.95 438.45 352.55 2.450 36 100.11 100.04 459.26 200.00 199.06 439.69 353.78 2.451 37 100.11 100.04 458.42 200.00 198.98 437.80 351.94 2.452 38 100.11 100.04 459.89 200.00 199.17 440.93 355.00 2.452 39 100.11 100.04 459.05 200.00 199.09 439.04 353.16 2.452 40 100.11 100.04 459.68 200.00 199.20 440.29 354.39 2.453 41 100.11 100.04 458.21 200.00 199.00 437.15 351.33 2.453 42 100.11 100.04 458.84 200.00 199.11 438.40 352.55 2.453 43 100.11 100.04 459.47 200.00 199.23 439.64 353.78 2.454 44 100.11 100.04 458.00 200.00 199.03 436.51 350.71 2.454 45 100.11 100.04 458.63 200.00 199.14 437.75 351.94 2.454 46 100.11 100.04 460.11 200.00 199.34 440.88 355.00 2.455 47 100.11 100.04 459.26 200.00 199.25 439.00 353.16 2.455 48 100.11 100.04 458.42 200.00 199.17 437.11 351.33 2.455 49 100.11 100.04 459.89 200.00 199.36 440.24 354.39 2.456 50 100.11 100.04 459.05 200.00 199.28 438.35 352.55 2.456 51 100.11 100.04 459.68 200.00 199.39 439.59 353.78 2.457 52 100.11 100.04 458.21 200.00 199.20 436.46 350.71 2.457 53 100.11 100.04 458.84 200.00 199.31 437.70 351.94 2.457 54 100.11 100.04 460.32 200.00 199.50 440.84 355.00 2.457 55 100.11 100.04 459.47 200.00 199.42 438.95 353.16 2.458 56 100.11 100.04 458.00 200.00 199.23 435.81 350.10 2.458 57 100.11 100.04 458.63 200.00 199.34 437.06 351.33 2.458 58 100.11 100.04 460.11 200.00 199.53 440.19 354.39 2.458 59 100.11 100.04 459.26 200.00 199.45 438.30 352.55 2.459 60 100.11 100.04 460.53 200.00 199.67 440.79 355.00 2.459 61 100.11 100.04 458.42 200.00 199.36 436.41 350.71 2.459 62 100.11 100.04 459.89 200,00 199.56 439.54 353.78 2.459 63 100.11 100.04 459.05 200.00 199.47 437.65 351.94 2.460 Critical Surface 64 100.11 100.04 460.32 200.00 1.99.70 440.14 354.39 2.460 65 100.11 100.04 459.68 200.00 199.58 438.90 353.16 2.461 66 100.11 100.04 458.21 200.00 199.39 435.76 350.10 2.461 67 100.11 100.04 460.74 200.00 199.83 440.74 355.00 2.461 68 100.11 100.04 458.84 200.00 199.50 437.01 351.33 2.461 69 100.11 100.04 459.47 200.00 199.61 438.25 352.55 2.462 70 100.11 100.04 460.11 200.00 199.72 439.50 353.78 2.462 71 100.11 100.04 460.53 200.00 199.86 440.09 354.39 2.462 72 100.11 100.04 458.00 200.00 199.42 435.12 349.49 2.462 73 100.11 100.04 458.63 200.00 199.53 436.36 350.71 2.462 74 100.11 100.04 460.95 200.00 200.00 440.69 355.00 2.463 75 100.11 100.04 459.26 200.00 199.64 437.61 351.94 2.463 76 100.11 100.04 459.89 200.00 199.75 436.85 353.16 2.463 77 100.11 100.04 458.42 200.00 199.56 435.71 350.10 2.464 78 100.11 100.04 460.32 200.00 199.89 439.45 353.78 2.464 79 100.11 100.04 459.05 200.00 199.67 436.96 351.33 2.464 80 100.11 100.04 460.74 200.00 200.03 440.04 354.39 2.465 81 100.11 100.04 459.68 200.00 199.78 438.20 352.55 2.465 82 100.11 100.04 461.16 200.00 200.17 440.64 355.00 2.465 63 100.11 100.04 458.21 200.00 199.59 435.07 349.49 2.465 64 100.11 100.04 456.84 200.00 199.70 436.31 350.71 2.466 85 100.11 100.04 460.11 200.00 199.92 438.80 353.16 2.466 86 100.11 100.04 459.47 200.00 199.81 437.56 351.94 2.466 87 100.11 100.04 460.53 200.00 200.05 439.40 353.78 2.466 88 100.11 100.04 458.00 200.00 199.62 434.42 348.88 2.467 89 100.11 100.04 460.95 200.00 200.19 440.00 354.39 2.467 90 100.11 100.04 458.63 200.00 199.72 435.67 350.10 2.467 91 100.11 100.04 461.37 200.00 200.33 440.59 355.00 2.467 92 100.11 100.04 459.26 200.00 199.83 436.91 351.33 2.468 93 100.11 100.04 459.89 200.00 199.94 438.15 352.55 2.468 94 100.11 100.04 460.32 200.00 200.08 438.75 353.16 2.468 95 100.11 100.04 458.42 200.00 199.75 435.02 349.49 2.468 96 100.11 100.04 460.74 200.00 200.22 439.35 353.78 2.469 97 100.11 100.04 459.05 200.00 199.86 436.26 350.71 2.469 98 100.11 100.04 461.16 200.00 200.36 439.95 354.39 2.469 99 100.11 100.04 459.68 200.00 199.97 437.51 351.94 2.469 Critical Failure Surface (circle 1) Intersects: XL: 100.11 YL: 100.04 XR: 458.00 YR: 200.00 Centre: XC: 197.68 YC: 441.36 Radius: R: 355.00 Generated failure surface: (20 points) 100.11 100.04 120.05 94.95 140.25 91.04 160.65 88.30 201./5 86.39 222.31 87.22 242.79 89.24 263.12 92.45 303.05 102.36 322.51 109.04 341.56 116.83 360.13 125.71 395.55 146.63 412.30 158.59 428.33 171.50 443.58 195.32 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) 181.17 283.23 378.14 458.00 86.75 96.83 135.66 200.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 100.00 41.74 82.9 12.02 97.74 3 100.00 18.0 5499.39 582274.19 5913.02 3.91 2 112.02 75.21 -14.3 8.03 8.29 4 2000.00 20.0 9917.47 50676.38 7011.84 1.07 3 120.05 145.37 -11.0 10.10 10.29 4 2000.00 20.0 19145.17 64224.31 7433.42 1.05 4 130.15 199.17 -11.0 10.10 10.29 4 2000.00 20.0 26166.14 65481.53 7931.24 1.05 5 140.25 252.54 -7.6 10.20 10.29 4 2000.00 20.0 33142.10 66550.41 8320.21 1.03 6 150.45 301.18 -7.6 10.20 10.29 4 2000.00 20.0 39444.89 67429.62 8732.70 1.03 7 160.65 176.66 -4.3 5.35 5.37 4 2000.00 20.0 23101.20 35465.32 8954.33 1.01 8 166.00 323.51 -4.3 9.00 9.03 4 2000.00 20.0 42163.39 59950.62 9175.22 1.01 9 175.00 240.91 -4.3 6.17 6.19 4 2000.00 20.0 31306.14 41318.34 9409.15 1.01 10 181.17 433.28 -1.0 10.29 10.29 4 2000.00 20.0 56202.16 68923.37 9555.00 1.00 11 191.46 470.42 -1.0 10.29 10.29 4 2000.00 20.0 60874.09 69039.16 9795.71 1.00 12 201.75 504.14 2.3 10.28 10.29 4 2000.00 20.0 65068.52 68963.36 9918.15 0.99 13 212.03 535.10 2.3 10.28 10.29 4 2000.00 20.0 68869.81 68696.24 10072.91 0.99 14 222.31 560.66 5.6 10.24 10.29 4 2000.00 20.0 71940.06 68238.05 10107.39 0.99 15 232.55 585.26 5.6 10.24 10.29 4 2000.00 20.0 ' 74848.96 67588.64 10176.52 0.99 16 242.79 605.01 9.0 10.21 10.34 4 2000.00 20.0 77033.20 67053.63 10117.46 0.99 17 253.00 617.55 9.0 10.12 10.24 4 2000.00 20.0 78242.12 65416.99 10093.23 0.99 18 263.12 628.46 12.3 10.05 10.29 4 2000.00 20.0 79294.27 64502.84 9954.57 0.99 19 273.17 640.14 12.3 10.05 10.29 4 2000.00 20.0 80402.51 63097.00 9854.50 0.99 20 283.23 733.63 15.6 11.36 11.80 3 100.00 18.0 91651.52 70377.52 9844.45 1.00 21 294.59 550.47 15.6 8.46 8.78 2 0.00 35.0 68555.57 50856.20 9534.62 0.96 22 303.05 635.34 18.9 9.73 10.29 2 0.00 35.0 79125.31 57767.87 9304.55 0.96 23 312.78 634.43 18.9 9.73 10.29 2 0.00 35.0 79011.83 55624.73 9090.97 0.96 24 322.51 616.88 22.2 9.52 10.29 2 0.00 35.0 76823.88 53302.29 8779.43 0.97 25 332.04 610.00 22.2 9.52 10.29 2 0.00 35.0 75964.83 50800.61 8495.91 0.97 26 341.56 679.65 25.6 10.80 11.98 2 0.00 35.0 84632.27 55744.25 8087.37 0.97 27 352.37 386.61 25.6 6.27 6.95 6 50.00 16.0 48185.77 30575.37 8022.06 1.05 26 358.64 91.07 25.6 1.49 1.65 2 0.00 35.0 11361.13 7077.09 7630.65 0.97 29 360.13 414.14 28.9 6.87 7.65 2 0.00 35.0 51664.84 32528.00 7382.44 ' 0.99 30 367.00 649.39 28.9 11.14 12.73 2 0.00 35.0 80903.09 48779.36 6957.88 0.99 31 378.14 217.84 32.2 3.86 4.56 2 0.00 35.0 27087.60 16249.26 6525.05 1.00 32 382.00 330.14 32.2 6.00 7.09 2 0.00 35.0 40997.00 23906.55 6299.66 1.00 33 388.00 319.45 32.2 6.00 7.09 2 0.00 35.0 39601.47 22233.51 6066.56 1.00 34 394.00 81.04 32.2 1.55 1.84 2 0.00 35.0 10036.86 5488.74 5920.90 1.00 35 395.55 98.96 35.5 1.92 2.36 2 0.00 35.0 12254.62 6875.91 5787.39 1.02 36 397.48 127.94 35.5 2.52 3.10 6 50.00 16.0 15851.91 8730.50 5995.60 1.13 37 400.00 83.10 35.5 1.68 2.06 6 50.00 16.0 10307.39 5601.67 5870.83 1.13 38 401.68 480.34 35.5 10.63 13.06 2 0.00 35.0 59564.34 31945.19 5065.19 1.02 39 412.30 246.69 38.9 6.35 8.15 2 0.00 35.0 30550.04 16715.36 4290.06 1.04 40 418.65 214.20 38.9 6.35 8.15 2 0.00 35.0 26489.85 14112.43 3711.05 1.04 41 425.00 89.91 38.9 3.00 3.85 5 0.00 45.0 9890.04 5762.46 2847.32 0.96 42 428.00 196.77 42.0 7.79 10.49 2 0.00 35.0 24246.18 12608.45 2718.12 1.07 43 435.79 141.81 42.2 7.79 10.51 2 0.00 35.0 17375.60 8006.41 192.6.14 1.07 44 443.58 46.42 45.5 3.62 5.16 2 0.00 35.0 5639.35 2201.40 1302.46 1.10 45 447.19 41.76 45.5 4.91 7.01 6 50.00 16.0 5060.29 1093.52 917.33 1.27 46 452.10 15.72 45.5 3.93 5.61 6 50.00 "16.0 1925.85 0.00 418.60 1.27 47 456.03 1.97 45.5 1.97 2.80 2 0.00 35.0 245.64 0.00 96.60 1.10 X -S Area: 16071.96 Path Length: 476.46 X -S Weight: 2027685.75 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J &-T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 10 RDgmf Processed: 31 Jul 2019 10:47:09 DATA: Analysis 1 - Case 10 - Rapid Draw Down Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (19 profiles) Profile: 1 (2 points) 0.00 200.00 Profile: 2 (2 points) 0.00 190.00 Profile: 3 (2 points) 0.00 189.00 Profile: 4 (2 points) 0.00 172.00 Profile: 5 (2 points) 0.00 167.00 Profile: 6 (2 points) 0.00 138.00 Profile: 7 (2 points) 0.00 136.00 Profile: 8 (2 points) 0.00 100.00 Profile: 9 (2 points) 0.00 97.00 Profile: 10 (2 points) 434.00 200.00 Profile: 11 (2 points) 437.00 200.00 Profile: 12 (2 points) 437.00 190.00 Profile: 13 (2 points) 437.00 189.00 Profile: 14 (2 points) 437.00 172.00 Profile: 15 (2 points) 437.00 167.00 Profile: 16 (2 points) 437.00 138.00 Profile: 17 (2 points) 437.00 136.00 Profile: 18 (2 points) 437.00 100.00 Profile: 19 (2 points) 434.00 97.00 Slope Surface (7 points) 0.00 100.00 479.00 200.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: _ 434.00 Material beneath: 434.00 Material beneath: • 434.00 Material beneath: 434.00 Material beneath: 437.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.0D Material beneath: 490.00 Phreatic Surface (4 points) 0.00 Failure Surface 100.00 109.00 490.00 109.00 2 - Sand and Gravel 200.00 6 - Clay 190.00 2 - Sand and Cravel 189.00 6 - Clay 172.00 2 - Sand and Gravel 167.00 6 - Clay 138.00 2 - Sand and Gravel 136.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 190.00 2 - Sand and Gravel 189.00 6 - Clay 172.00 2 - Sand and Gravel 167.00 6 - Clay 138.00 2 - Sand and Gravel 136.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 200.00 100.00 409.00 200.00 388.00 193.00 469.00 200.00 490.00 193.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 114.00 YL: 101.67 XR: 469.50 YR: 199.70 474.00 197.00 Centre: XC: 197.69 YC: 491.77 Variable Restraints Parameter descriptor: XL XR R Range of variation: 10.00 4.00 50.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 10 - Rapid Draw Down Bishop Simplified Method of Analysis - Circular Failure Surface Radius: R: 398.98 Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.671 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.54 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius ' FoS 1 114.00 101.67 469.50 199.70 197.69 491.77 398.98 1.538 <-- Critical Surface 2 114.00 101.67 469.50 199.70 197.39 492.88 400.00 1.539 3 114.00 101.67 469.71 199.57 197.67 492.82 400.00 1.539 4 114.00 101.67 469.92 199.45 197.95 492.76 400.00 1.540 5 114.00 101.67 469.50 199.70 198.00 490.66 397.96 1.545 6 114.00 101.67 469.71 199.57 197.97 491.71 398.98 1.545 7 114.00 101.67 469.50 199.70 198.30 489.55 396.94 1.548 8 114.00 101.67 469.71 199.57 198.28 490.60 397.96 1.548 9 114.00 101.67 469.92 199.45 198.25 491.65 398.98 1.548 10 114.00 101.67 470.13 199.32 198.23 492.70 400.00 1.549 11 113.47 101.49 469.50 199.70 197.13 492.64 400.00 1.549 12 114.00 101.67 470.34 199.19 198.51 492.64 400.00 1.552 13 113.47 101.49 469.50 199.70 197.44 491.54 398.98 1.552 14 114.00 101.67 470.13 199.32 198.53 491.59 398.98 1.552 15 113.47 101.49 469.71 199.57 197.42 492.58 400.00 1.552 16 114.00 101.67 469.50 199.70 198.61 486.44 395.92 1.552 17 114.00 101.67 469.92 199.45 198.56 490.54 397.96 1.552 18 114.00 101.67 469.71 199,57 198.58 489.49 396.94 1.552 19 114.00 101.67 470.76 196.94 199.38 491.40 398.98 1.553 20 114.00 101.67 470.55 199.07 198.79 492.58 400.00 1.555 21 114.00 101.67 470.34 199.19 198.82 491.53 398.98 1.555 22 114.00 101.67 470.13 199.32 199.14 489.37 396.94 1.555 23 114.00 101.67 470.13 199.32 198.84 490.48 397.96 1.556 24 114.00 101.67 469.92 199.45 199.17 488.32 395.92 1.556 25 114.00 101.67 469.71 199.57 199.20 487.26 394.90 1.556 26 114.00 101.67 469.50 199.70 199.22 486.21 393.88 1.556 27 114.00 101.67 469.92 199.45 198.86 489.43 396.94 1.556 28 113.47 101.49 469.50 199.70 197.75 490.43 397.96 1.556 29 113.47 101.49 469.71 199.57 197.72 491.47 398.98 1.556 30 113.47 101.49 469.92 199.45 197.70 492.52 400.00 1.556 31 114.00 101.67 469.71 199.57 198.89 486.38 395.92 1.556 32 114.00 101.67 469.50 199.70 198.92 487.33 394.90 1.557 33 114.00 101.67 470.34 199.19 199.42 489.30 396.94 1.558 34 114.00 101.67 470.55 199.07 199.40 490.35 397.96 1.558 35 114.00 101.67 470.13 199.32 199.45 488.25 395.92 1.558 36 114.00 101.67 469.92 199.45 199.48 487.20 394.90 1.558 37 114.00 101.67 469.71 199.57 199.50 486.15 393.88 1.556 38 114.00 101.67 469.50 199.70 199.53 485.10 392.86 1.558 39 114.00 101.67 470.76 198.94 199.07 492.51 400.00 1.558 40 114.00 101.67 470.55 199.07 199.10 491.47 398.98 1.559 41 114.00 101.67 470.34 199.19 199.12 490.42 397.96 1.559 42 114.00 101.67 470.97 198.82 199.35 492.45 400.00 1.559 43 114.00 101.67 470.34 199.19 199.73 468.19 395.92 1.560 44 112.95 101.32 469.50 199.70 196.88 492.41 400.00 1.560 45 114.00 101.67 470.13 199.32 199.75 487.14 394.90 1.560 46 113.47 101.49 469.50 199.70 198.36 488.20 395.92 1.560 47 113.47 101.49 470.13 199.32 198.28 491.35 398.98 1.560 48 113.47 101.49 470.13 199.32 197.98 492.46 400.00 1.560 49 114.00 101.67 469.92 199.45 199.78 486.09 393.88 1.560 50 113.47 101.49 469.92 199.45 198.31 490.30 397.96 1.560 51 113.47 101.49 469.71 199.57 198.33 489.25 396.94 1.560 52 114.00 101.67 469.71 199.57 199.81 485.04 392.86 1.560 53 113.47 101.49 470.76 198.94 198.82 492.28 400.00 1.560 54 113.47 101.49 469.50 199.70 198.05 489.31 396.94 1.560 55 113.47 101.49 469.71 199.57 198.03 490.36 397.96 1.560 56 114.00 101.67 469.50 199.70 199.84 483.99 391.84 1.560 57 113.47 101.49 469.92 199.45 198.00 491.41 398.98 1.560 58 114.00 101.67 470.97 198.82 199.66 491.34 398.98 1.562 59 114.00 101.67 471.18 198.69 1.99.64 492.39 400.00 1.562 60 114.00 101.67 470.76 198.94 199.68 490.29 397.96 1.562 61 113.47 101.49 470.34 199.19 198.56 491.29 398.98 1.562 62 114.00 101.67 470.13 199.32 200.06 486.03 393.88 1.562 63 11.3.47 101.49 470.13 199.32 198.59 490.24 397.96 1.562 64 113.47 101.49 470.55 199.07 198.54 492.34 400.00 1.562 65 113.47 101.49 469.92 199.45 198.61 489.19 396.94 1.562 66 114.00 101.67 469.92 199.45 200.09 484.98 392.86 1.562 67 113.47 101.49 469.71 199.57 198.64 488.14 395.92 1.562 68 113.47 101.49 469.50 199.70 198.67 487.09 394.90 1.562 69 114.00 101.67 469.71 199.57 200.12 483.92 391.84 1.562 70 114.00 101.67 469.50 199.70 200.15 482.87 390.82 1.563 71 113.47 101.49 470.34 199.19 198.26 492.40 400.00 1.563 72 114.00 101.67 470.55 199.07 199.70 489.24 396.94 1.564 73 112.95 101.32 469.50 199.70 197.49 490.19 397.96 1.564 74 112.95 101.32 469.50 199.70 197.19 491.30 398.98 1.564 75 112.95 101.32 469.71 199.57 197.16 492.35 400.00 1.564 76 114.00 101.67 471.18 198.69 199.94 491.28 398.98 1.564 77 114.00 101.67 470.97 198.82 199.96 490.23 397.96 1.564 78 114.00 101.67 471.39 198.56 199.92 492.33 400.00 1.564 79 114.00 101.67 470.76 198.94 199.98 489.18 396.94 1.564 80 112.95 101.32 469.71 199.57 197.47 491.24 398.98 1.564 81 113.47 101.49 470.34 199.19 198.87 490.18 397.96 1.564 82 113.47 101.49 470.13 199.32 198.89 489.13 396.94 1.564 63 113.47 101.49 470.55 199.07 198.84 491.23 398.98 1.564 84 113.47 101.49 469.92 199.45 198.92 488.08 395.92 1.564 65 113.47 101.49 469.71 199.57 198.94 487.03 394.90 1.565 86 113.47 101.49 469.50 199.70 198.97 485.98 393.88 1.565 87 114.00 101.67 469.71 199.57 200.42 482.81 390.82 1.565 88 112.95 101.32 469.92 199.45 197.44 492.29 400.00 1.565 89 114.00 101.67 469.50 199.70 200.45 481.75 389.80 1.565 90 114.00 101.67 470.55 199.07 200.31 487.02 394.90 1.565 91 114.00 101.67 470.34 199.19 200.03 467.08 394.90 1.566 92 114.00 101.67 470.55 199.07 200.01 468.13 395.92 1.567 93 113.47 101.49 470.34 199.19 199.17 489.07 396.94 1.567 94 113.47 101.49 470.13 199.32 199.20 468.02 395.92 1.567 95 113.47 101.49 469.92 199.45 199.22 486.97 394.90 1.567 96 112.95 101.32 469.50 199.70 197.80 489.08 396.94 1.567 97 113.47 101.49 469.71 199.57 199.25 485.92 393.88 1.567 98 113.47 101.49 469.50 199.70 199.28 484.86 392.86 1.567 99 112.95 101.32 470.13 199.32 197.73 492.23 400.00 1.567 Critical Failure Surface (circle 1) Intersects: XL: 114.00 YL: 101.67 Centre: XC: 197.69 YC: 491.77 Generated failure surface: (20 points) 114.00 101.67 133.83 97.93 214.25 93.13 234.38 94.48 313 45 109.95 332.60 116.29 405.28 151.05 422.24 161.98 XR: 469.50 YR: 199.70 Radius: R: 398.98 153.82 254.41 .351.41 438.62 95.21 96.84 123.59 173.75 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) 173.92 274.30 369.82 454.39 93.50 100.21 131.83 186.33 194.08 294.00 387.79 469.50 92.81 104.59 140.99 199.70 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 114.00 20.45 -10.7 8.85 9.01 2 0.00 35.0 2555.81 1298.27 302.18 1.11 2 122.85 82.06 -10.7 10.97 11.16 3 100.00 18.0 10438.30 5210.23 984.24 1.06 3 133.83 81.97 -7.8 6.86 6.92 3 100.00 18.0 10524.20 5162.25 1566.89 1.04 4 140.68 99.16 -7.8 6.57 6.63 4 2000.00 20.0 12756.52 6244.50 2159.55 1.04 5 147.25 119.40 -7.8 6.57 6.63 4 2000.00 20.0 15380.83 7519.31 2566.19 1.04 6 153.82 219.41 -4.9 10.05 10.09 4 2000.00 20.0 28265.90 13741.00 2955.10 1.02 7 163.87 261.68 -4.9 10.05 10.09 4 2000.00 20.0 33687.14 16388.14 3500.19 1.02 8 173.92 302.36 -2.0 10.08 10.09 4 2000.00 20.0 38871.18 18878.24 3917.18 1.01 9 184.00 339.72 -2.0 10.08 10.09 4 2000.00 20.0 43597.77 21211.25 4387.99 1.01 10 194.08 374.70 0.9 10.09 10.09 4 2000.00 20.0 47985.47 23384.55 4727.42 1.00 11 204.16 406.96 0.9 10.09 10.09 4 2000.00 20.0 51991.03 25397.57 5123.82 1.00 12 214.25 116.38 3.8 2.75 2.76 4 2000.00 20.0 14846.02 7278.56 5269.25 0.99 13 217.00 260.89 3.8 6.00 6.01 4 2000.00 20.0 33203.19 16315.79 5404.29 0.99 14 223.00 521.10 3.8 11.38 11.40 4 2000.00 . 20.0 66097.33 32589.06 5677.35 0.99 15 234.38 484.76 6.7 10.02 10.09 4 2000.00 20.0 61284.95 30458.64 5884.55 0.98 16 244.40 506.38 6.7 10.02 10.09 4 2000.00 20.0 63797.99 31816.99 6132.25 0.98 17 254.41 487.82 9.6 9.31 9.44 3 100.00 18.0 61237.54 30874.51 6451.76 0.98 18 263.72 502.02 9.6 9.31 9.44 3 100.00 18.0 62777.52 31773.31 6614.73 0.98 19 273.04 579.90 12.2 10.48 10.72 2 0.00 35.0 72382.27 37017.75 6597.29 0.93 20 283.52 592.12 12.5 10.48 10.74 2 0.00 35.0 73910.55 37848.41 6728.12 0.93 21 294.00 458.52 15.4 8.00 8.30 2 0.00 35.0 57235.27 29679.75 6754.56 0.92 22 302.00 462.21 15.4 8.00 8.30 2 0.00 35.0 57695.95 29918.30 6808.92 0.92 23 310.00 200.21 15.4 3.45 3.57 2 0.00 35.0 - 24981.42 12959.18 6845.26 0.92 24 313.45 672.57 18.3 11.55 12.17 2 0.00 35.0 83778.41 44207.75 6777.21 0.92 25 325.00 442.47 18.3 7.60 8.00 2 0.00 35.0 55042.85 29083.29 6771.46 0.92 26 332.60 545.26 21.2 9.40 10.09 2 0.00 35.0 67828.72 36497.07 6673.39 0.91 27 342.00 540.42 21.2 9.40 10.09 2 0.00 35.0 67223.27 36172.87 6613.84 0.91 28 351.41 521.92 24.1 9.21 10.09 2 0.00 35.0 64917.43 35680.01 6456.23 0.91 29 360.61 512.24 24.1 9.21 10.09 2 0.00 35.0 63707.58 35018.33 6335.96 0.91 30 369.82 337.24 27.0 6.18 6.94 2 0.00 35.0 41939.15 23619.58 6148.99 0.91 31 376.00 107.75 27.0 2.00 2.25 2 0.00 35.0 13395.50 7546.58 6065.96 0.91 32 378.0O 209.24 27.0 3.92 4.40 6 50.00 16.0 26017.54 14654.51 6328.44 1.03 33 381.93 307.83 27.0 5.87 6.59 2 0.00 35.0 38302.19 21559.24 5914.50 0.91 34 387.79 444.93 29.9 8.74 10.09 2 0.00 35.0 55353.62 31153.60 5657.80 0.91 35 396.54 426.44 29.9 8.74 10.09 2 0.00 35.0 53042.90 27988.27 5383.25 0.91 36 405.28 175.26 32.8 3.72 4.42 2 0.00 35.0 21796.37 11249.73 5108.94 0.92 37 409.00 294.05 32.8 6.62 7.88 2 0.00 35.0 36557.18 18389.19 4799.73 0.92 38 415.62 265.81 32.8 6.62 7.88 2 0.00 35.0 33027.46 16292.91 4327.04 0.92 39 422.24, 248.24 35.7 6.99 8.61 2 0.00 35.0 30819.84 15314.13 3760.79 0.93 40 429.23 149.26 35.7 4.77 5.87 6 50.00 16.0 18555.45 8902.88 3588.32 1.09 41 434.00 85.48 35.7 3.00 3.69 5 0.00 45.0 9403.07 4954.69 2563.46 0.84 42 437.00 43.52 35.7 1.62 2.00 2 0.00 35.0 5432.24 2471.82 2828.78 0.93 43 438.62 182.15 38.6 . 7.88 10.09 2 0.00 35.0 22729.23 10136.77 2382.56 . 0.94 44 446.51 132.54 38.6 7.88 10.09 2 0.00 35.0 16528.10 6176.00 1700.96 0.94 45 454.39 37.17 41.5 3.01 4.02 2 0.00 35.0 4631.07 1338.95 1191.05 0.95 46 457.40 40.70 41.5 4.52 6.04 2 0.00 35.0 5087.49 753.47 837.89 0.95 47 461.93 27.65 41.5 7.57 10.11 2 0.00 35.0 3455.97 0.00 325.28 0.95 X -S Area: 14230.32 Path Length: 383.30 X -S Weight: 1784076.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 10 Full gmf Processed: 31 Jul 2019 11:12:46 DATA: Analysis 1 - Case 10 - Full Reservoir Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (19 profiles) Profile: 1 (2 points) Material beneath: 2 - Sand and Gravel 0.00 200.00 434.00 200.00 Profile: 2 (2 points) Material beneath: 6 - Clay 0.00 190.00 434.00 190.00 Profile: 3 (2 points) Material beneath: 2 - Sand.and Gravel 0.00 189.00 434.00 189.00 Profile: 4 (2 points) Material beneath: 6 - Clay 0.00 172.00 434.00 172.00 Profile: 5 (2 points) Material beneath: 2 - Sand and Gravel 0.00 167.00 434.00 167.00 Profile: 6 (2 points) Material beneath: 6 - Clay 0.00 138.00 434.00 138.00 Profile: 7 (2 points) Material beneath: 2 - Sand and Gravel 0.00 136,00 434.00 136.00 Profile: 8 (2 points) Material beneath: 3 - Weathered Bedrock 0.00 100.00 434.00 100.00 Profile: 9 (2 points) Material beneath: 4 - Stable Bedrock 0.00 97.00 434.00 97.00 Profile: 10 (2 points) Material beneath: 5 - Slurry Wall 434.00 200.00 437.00 200.00 Profile: 11 (2 points) Material beneath: 2 - Sand and Gravel 437.00 200.00 490.00 200.00 Profile: 12 (2 points) Material beneath: 6 - Clay 437.00 190.00 490.00 190.00 Profile: 13 (2 points) Material beneath: 2 - Sand and Gravel 437.00 189.00 490.00 189.00 Profile: 14 (2 points) Material beneath: 6 - Clay 437.00 172.00 490.00 172.00 Profile: 15 (2 points) Material beneath: 2 - Sand and Gravel 437.00 167.00 490.00 167.00 Profile: 16 (2 points) Material beneath: 6 - Clay 437.00 138.00 490.00 138.00 Profile: 17 (2 points) Material beneath: 2 - Sand and Gravel 437.00 136.00 490.00 136.00 Profile: 18 (2 points) Material beneath: 3 - Weathered Bedrock 437.00 100.00 490.00 100.00 Profile: 19 (2 points) Material beneath: 4 - Stable Bedrock 434.00 97.00 490.00 97.00 Slope Surface (7 points) 0.00 100.00 109.00 100.00 409.00 200.00 469.00 200.00 474.00 197.00 479.00 200.00 490.00 200.00 Phreatic Surface (4 points) 0.00 193.00 109.00 193.00 388.00 193.00 490.00 193.00 Failure Surface Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 114.00 YL: 101.67 XR: 469.50 YR: 199.70 Centre: XC: 197.69 YC: 491.77 Variable Restraints Parameter descriptor: XL XR R Range of variation: 10.00 4.00 50.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 10 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Radius: R: 398.98 Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.253 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 3.01 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 114.00 101.67 469.50 199.70 197.69 491.77 398.98 3.012 <-- Critical Surface 2 114.00 101.67 469.50 199.70 197.39 492.88 400.00 3.013 3 114.00 101.67 469.71 199.57 197.67 492.82 400.00 3.013 4 114.00 101.67 469.92 199.45 197.95 492.76 400.00 3.014 5 114.00 101.67 469.50 199.70 198.00 490.66 397.96 3.024 6 114.00 101.67 469.71 199.57 197.97 491.71 398.98 3.024 7 114.00 101.67 469.71 199.57 198.28 490.60 397.96 3.029 8 114.00 101.67 469.92 199.45 198.25 491.65 398.98 3.029 9 114.00 101.67 469.50 199.70 198.30 489.55 396.94 3.030 10 114.00 101.67 470.13 199.32 198.23 492.70 400.00 3.030 11 113.47 101.49 469.50 199.70 197.13 492.64 400.00 3.031 12 114.00 101.67 470.34 199.19 198.51 492.64 400.00 3.035 13 114.00 101.67 470.76 198.94 199.38 491.40 398.98 3.035 14 114.00 101.67 470.13 199.32 198.53 491.59 398.98 3.036 15 113.47 101.49 469.71 199.57 197.42 492.58 400.00 3.036 16 113.47 101.49 469.50 199.70 197.44 491.54 398.98 3.037 17 114.00 101.67 469.92 199.45 198.56 490.54 397.96 3.037 18 114.00 101.67 469.71 199.57 198.58 489.49 396.94 3.037 19 114.00 101.67 469.50 199.70 198.61 488.44 395.92 3.038 20 114.00 101.67 470.55 199.07 198.79 492.58 400.00 3.041 21 114.00 101.67 470.34 199.19 198.82 491.53 398.98 3.041 22 114.00 101.67 470.13 199.32 199.14 489.37 396.94 3.042 23 114.00 101.67 470.13 199.32 198.84 490.48 397.96 3.042 24 114.00 101.67 469.92 199.45 199.17 488.32 395.92 3.042 25 114.00 101.67 469.71 199.57 199.20 487.26 394.90 3.043 26 114.00 101.67 469.92 199.45 198.86 489.43 396.94 3.043 27 114.00 101.67 469.50 199.70 199.22 486.21 393.88 3.044 28 113.47 101.49 469.92 199.45 197.70 492.52 400.00 3.044 29 113.47 101.49 469.71 199.57 197.72 491.47 398.98 3.044 30 113.47 101.49 469.50 199.70 197.75 490.43 397.96 3.044 31 114.00 101.67 469.71 199.57 198.89 488.38 395.92 3.045 32 114.00 101.67 470.55 199.07 199.40 490.35 397.96 3.045 33 114.00 101.67 470.34 199.19 199.42 489.30 396.94 3.045 34 114.00 101.67 469.50 199.70 196.92 487.33 394.90 3.046 35 114.00 101.67 470.13 199.32 199.45 488.25 395.92 3.046 36 114.00 101.67 469.92 199.45 199.48 487.20 394.90 3.046 37 114.00 101.67 470.76 198.94 199.07 492.51 400.00 3.046 38 114.00 101.67 470.97 198.82 199.35 492.45 400.00 3.047 39 114.00 101.67 469.71 199.57 199.50 486.15 393.88 3.047 40 114.00 101.67 470.55 199.07 199.10 491.47 398.98 3.047 41 114.00 101.67 469.50 199.70 199.53 485.10 392.86 3.048 42 114.00 101.67 470.34 199.19 199.12 490.42 397.96 3.048 43 113.47 101.49 470.76 198.94 198.82 492.28 400.00 3.048 44 114.00 101.67 470.34 199.19 199.73 488.19 395.92 3.049 45 114.00 101.67 470.13 199.32 199.75 487.14 394.90 3.050 46 113.47 101.49 470.13 199.32 198.28 491.35 398.98 3.050 47 114.00 101.67 469.92 199.45 199.78 486.09 393.88 3.050 48 113.47 101.49 470.13 199.32 197.98 492.46 400.00 3.051 49 113.47 101.49 469.92 199.45 198.31 490.30 397.96 3.051 50 114.00 101.67 471.18 198.69 199.64 492.39 400.00 3.051 51 114.00 101.67 469.71 199.57 199.81 485.04 392.86 3.051 52 114.00 101.67 470.97 198.82 199.66 491.34 398.98 3.051 53 113.47 101.49 469.71 199.57 198.33 489.25 396.94 3.052 54 113.47 101.49 469.50 199.70 198.36 488.20 395.92 3.052 55 112.95 101.32 469.50 199.70 196.88 492.41 400.00 3.052 56 113.47 101.49 469.92 199.45 198.00 491.41 398.98 3.052 57 114.00 101.67 469.50 199.70 199.84 483.99 391.84 3.052 58 114.00 101.67 470.76 198.94 199.68 490.29 397.96 3.052 59 113.47 101.49 469.71 199.57 198.03 490.36 397.96 3.052 60 113.47 101.49 469.50 199.70 198.05 489.31 396.94 3.052 61 113.47 101.49 470.55 199.07 198.54 492.34 400.00 3.054 62 113.47 101.49 470.34 199.19 196.56 491.29 398.98 3.054 63 114.00 101.67 470.13 199.32 200.06 486.03 393.88 3.054 64 113.47 101.49 470.13 199.32 196.59 490.24 397.96 3.054 65 114.00 101.67 469.92 199.45 200.09 484.98 392.86 3.055 66 113.47 101.49 469.92 199.45 198.61 489.19 396.94 3.055 67 114.00 101.67 469.71 199.57 200.12 483.92 391.84 3.055 68 113.47 101.49 469.71 199.57 198.64 468.14 395.92 3.055 69 114.00 101.67 471.39 198.56 199.92 492.33 400.00 3.056 70 114.00 101.67 469.50 199.70 200.15 482.87 390.82 3.056 71 114.00 101.67 471.18 198.69 199.94 491.28 398.98 3.056 72 113.47 101.49 469.50 199.70 198.67 487.09 394.90 3.056 73 113.47 101.49 470.34 199.19 198.26 492.40 400.00 3.056 74 114.00 101.67 470.97 198.82 199.96 490.23 397.96 3.056 75 114.00 101.67 470.76 198.94 199.98 489.18 396.94 3.057 76 114.00 101.67 470.55 199.07 199.70 489.24 396.94 3.057 77 113.47 101.49 470.55 199.07 198.84 491.23 398.98 3.058 78 113.47 101.49 470.34 199.19 198.87 490.18 397.96 3.058 79 113.47 101.49 470.13 199.32 196.89 489.13 396.94 3.058 80 114.00 101.67 470.55 199.07 200.31 487.02 394.90 3.058 81 113.47 101.49 469.92 199.45 198.92 488.08 395.92 3.059 82 112.95 101.32 469.50 199.70 197.49 490.19 397.96 3.059 83 114.00 101.67 469.71 199.57 200.42 482.81 390.82 3.059 84 112.95 101.32 469.71 199.57 197.16 492.35 400.00 3.059 85 112.95 101.32 469.71 199.57 197.47 491.24 398.98 3.059 86 113.47 101.49 469.71 199.57 198.94 467.03 394.90 3.059 87 112.95 101.32 469.50 199.70 197.19 491.30 398.98 3.059 88 112.95 101.32 469.92 199.45 197.44 492.29 400.00 3.060 69 114.00 101.67 469.50 199.70 200.45 481.75 389.80 3.060 90 113.47 101.49 469.50 199.70 198.97 485.98 393.88 3.060 91 114.00 101.67 471.39 198.56 200.22 491.22 398.98 3.061 92 114.00 101.67 471.18 198.69 200.24 490.17 397.96 3.061 93 114.00 101.67 470.97 198.82 200.26 489.12 396.94 3.061 94 114.00 101.67 470.34 199.19 200.03 487.08 394.90 3.061 95 113.47 101.49 470.34 199.19 199.17 489.07 396.94 3.062 96 114.00 101.67 470.76 198.94 200.29 488.07 395.92 3.062 97 113.47 101.49 470.13 199.32 199.20 488.02 395.92 3.062 98 114.00 101.67 470.55 199.07 200.01 488.13 395.92 3.062 99 113.47 101.49 469.92 199.45 199.22 486.97 394.90 3.063 Critical Failure Surface (circle 1) Intersects: XL: 114.00 YL: 101.67 Centre: XC: 197.69 YC: 491.77 Generated failure surface: (20 points) 114.00 101.67 133.83 97.93 214.25 93.13 234.38 94.48 313.45 109.95 332.60 ..116.29 405.28 151.05 422.24 161.98 XR: 469.50 YR: 199.70 Radius: R: 398.98 153.82 254.41 351.41 438.62 95.21 96.84 123.59 173.75 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) 173.92 274.30 369.87 454.39 93.50 100.21 131.83 186.33 194.08 294.00 .387.79 469.50 92.81 104.59 140.99 199.70 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 114.00 20.45 -10.7 8.65 9.01 2 0.00 35.0 2555.82 51819.38 5902.37 1.06 2 122.85 82.06 -10.7 10.97 11.16 3 100.00 18.0 10438.30 65505.16 6368.78 1.04 3 133.83 81.97 -7.8 6.86 6.92 3 100.00 18.0 10524.20 41265.52 6766.25 1.02 4 140.68 99.16 -7.8 6.57 6.63 4 2000.00 20.0 12756.52 39876.62 7127.75 1.03 5 147.25 119.40 -7.8. 6.57 6.63 4 2000.00 20.0 15380.83 40246.63 7394.40 1.03 6 153.82 219.41 -4.9 10.05 10.09 4 2000.00 20.0 28265.90 61820.60 7651.07 1.01 7 163.87 261.68 -4.9 10.05 10.09 4 2000.00 20.0 33687.14 62359.04 7984.29 1.01 8 173.92 302.36 -2.0 10.08 10.09 4 2000.00 20.0 38871.18 62737.26 8235.17 1.00 9 184.00 339.72 -2.0 10.08 10.09 4 2000.00 20.0 43597.77 62955.13 8495.34 1.00 10 194.08. 374.70 0.9 10.09 10.09 4 2000.00 20.0 47985.47 63013.30 8670.92 1.00 11 204.16 406.96 0.9 10.09 10.09 4 2000.00 20.0 51991.03 62910.18 8857.91 1.00 12 214.25 116.38 3.8 2.75 2.76 4 2000.00 20.0 14846.02 17161.77 8917.05 0.99 13 217.00 260.89 3.8 6.00 6.01 4 2000.00 20.0 33203.19 37329.06 8961.57 0.99 14 223.00 521.10 3.8 11.38 11.40 4 2000.00 20.0 66097.33 70377.94 9054.88 0.99 15 234.38 484.76 6.7 10.02 10.09 4 2000.00 20.0 61284.95 61638.78 9088.18 0.99 16 244.40 506.38 6.7 10.02 10.09 4 2000.00 20.0 63797.99 60895.42 9129.04 0.99 17 254.41 487.82 9.6 9.31 9.44 3 100.00 18.0 61237.54 56201.26 9193.57 1.00 18 263.72 502.02 9.6 9.31 9.44 3 100.00 18.0 62777.52 55271.00 9164.02 1.00 19 273.04 579.90 12.2 10.48 10.72 2 0.00 35.0 72382.27 61488.10 9023.37 0.97 20 283.52 592.12 12.5 10.48 10.74 2 0.00 35.0 73910.55 60010.75 8942.96 0.97 21 294.00 458.52 15.4 8.00 8.30 2 0.00 35.0 57235.27 45216.89 8810.01 0.97 22 302.00 462.21 15.4 8.00 8.30 2 0.00 35.0 57695.95 44074.22 8699.43 0.97 23 310.00 200.21 15.4 3.45 3.57 2 0.00 35.0 24981.42 18630.51 8617.63 0.97 24 313.45 672.57 18.3 11.55 12.17 2 0.00 35.0 83778.41 61618.36 8423.00 0.98 25 325.00 442.47 18.3 7.60 8.00 2 0.00 35.0 55042.85 38938.77 8217.57 0.98 26 332.60 545.26 21.2 9.40 10.09 2 0.00 35.0 67828.72 47134.34 7970.13 0.98 27 342.00 540.42 21.2 . 9.40 10.09 2 0.00 35.0 67223.27 44837.21 7712.82 0.98 26 351.41 521.92 24.1 9.21 10.09 2 0.00 35.0 64917.43 42392.04 7385.11 0.99 29 360.61 512.24 24.1 9.21 10.09 2 0.00 35.0 63707.58 39798.64 7068.41 0.99 30 369.82 337.24 27.0 6.18 6.94 2 0.00 35.0 41939.15 25796.97 6741.31 1.00 31 376.00 107.75 27.0 2.00 2.25 2 0.00 35.0 13395.50 8060.47 6569.34 1.00 32 378.00 209.24 27.0 3.92 4.40 6 50.00 16.0 26017.54 15390.77 6636.37 1.07 33 381.93 307.83 27.0 5.87 6.59 2 0.00 35.0 38302.19 21969.48 6247.81 1.00 34 387.79 444.93 29.9 8.74 10.09 2 0.00 35.0 55353.62 31153.60 5948.04 1.02 35 396.54 426.44 29.9 8.74 10.09 2 0.00 35.0 53042.80 27988.27 5677.92 1.02 36 405.28 175.26 32.6 3.72 4.92 2 0.00 35.0 21796.37 11249.73 5429.20 1.03 37 409.00 294.05 32.8 6.62 7.88 2 0.00 35.0 36557.18 18389.19 5107.34 1.03 38 415.62 265.81 32.8 6.62 7.88 2 0.00 35.0 33027.46 16292.91 4608.88 1.03 39 422.24 248.24 35.7 6.99 8.61 2 0.00 35.0 30819.84 15314.13 4032.47 1.06 40 429.23 149.26 35.7 4.77 5.87 6 50.00 16.0 18555.45 8902.88 3726.14 1.15 41 434.00 85.48 35.7 3.00 3.69 5 0.00 45.0 9403.07 4954.69 2788.94 0.99 42 437.00 43.52 35.7 1.62 2.00 2 0.00 35.0 5432.24 2471.82 3046.93 1.06 43 438.62 182.15 38.6 7.88 10.09 2 0.00 35.0 22729.23 10136.77 2589.09 1.08 44 446.51 132.54 38.6 7.88 10.09 2 0.00 35.0 16528.10 6176.00 1864.18 1.08 45 454.39 37.17 41.5 3.01 4.02 2 0.00 35.0 4631.07 1338.95 1331.26 1.11 46 457.40 40.70 41.5 4.52 6.04 2 0.00 35.0 5087.49 753.47 954.39 1.11 47 461.93 27.65 41.5 7.57 10.11 2 0.00 35.0 3455.97 0.00 378.43 1.11 X -S Area: 14230.32 Path Length: 383.30 X -S Weight: 1784076.88 GALENA 7.2 Analysis Results Version:. 7.20.3.01 Licensee: J a T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Ga_!.ena\Models\DPG Case: 11 RD gml DATA: Analysis 1 - Case 11 - Rapid Draw Down Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable - Slurry - Clay - Silt Bedrock Wall Processed: 31_Jui. 2019 13:11:19 j. Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 190.00 Profile: 2 (2 points) 0.00 183.00 Profile: 3 (2.points) 0.00 181.00 Profile: 4 (2 points) 0.00 180.00 Profile: 5 (2 points) 0.00 170.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 392.00 190.00 Profile: 9 (2 points) 395.00 190.00 Profile: 10 (2 points) 395.00 183.00 Profile: 11 (2 points) 395.00 181.00 Profile: 12 (2 points) 395.00 180.00 Profile: 13 (2 points) 395.00 170.00 Profile: 14 (2 points) 395.00 100.00 Profile: 15 (2 points) 392.00 97.00 Slope Surface (4 points) Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392 00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 0.00 100.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 190.00 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 370.00 190.00 349.00 183.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 102.00 Y1: 100.67 XR: 430.00 YR: Centre: XC: 178.22 YC: 467.63 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 4.00 20 XR 10.00 20 R 10.00 50 440.00 190.00 440.00 183.00 190.00 374.80 RESULTS: Analysis 1 --Case 11 - Rapid Draw -Down Bishop Simplified Method of Analysis - Circular. Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.732 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.64 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre - Radius FoS - 1 102.00 100.67 430.00 190.00 1/8.22 467.63 374.80 1.644 <-- Critical Surface 2 102.00 100.67 430.00 190.00 178.28 467.41 374.59 1.645 3 102.00 100.67 430.00 190.00 178.34 467.19 374.39 1.646 4 102.00 100.67 430.00 190.00 178.40 466.97 374.18 1.646 5 102.00 100.67 430.00 190.00 178.46 466.75 373.98 1.647 6 102.00 100.67 430.00 190.00 178.16 467.85 375.00 1.647 7 102.00 100.67 430.00 190.00 178.52 466.53 373.78 1.647 8 102.00 100.67 430.00 190.00 178.58 466.30 373.57 1.648 9 102.00 100.67 430.53 190.00 178.59 467.76 375.00 1.648 10 101.79 100.60 430.00 190.00 178.06 467.76 375.00 1.649 11 102.00 100.67 430.00 190.00 178.64 466.08 373.37 1.649 12 102.00 100.67 430.53 190.00 178.65 467.54 374.80 1.649 13 101.79 100.60 430.00 190.00 178.12 467.54 374.80 1.649 14 102.00 100.67 430.00 190.00 178.70 465.86 373.16 1.649 15 102.00 100.67 430.53 190.00 178.71 467.32 374.59 1.650 16 101.79 100.60 430.00 190.00 178.18 467.32 374.59 1.650 17 102.00 100.67 430.00 190.00 178.76 465.64 372.96 1.650 18 102.00 100.67 430.53 190.00 178.77 467.10 374.39 1.650 19 101.79 100.60 430.00 190.00 178.24 467.10 374.39 1.650 20 102.00 100.67 430.00 190.00 178.82 465.42 372.76 1.650 21 102.00 100.67 430.53 190.00 178.83 466.88 374.18 1.651 22 101.79 100.60 430.00 190.00 178.30 466.87 374.18 1.651 23 102.00 100.67 430.00 190.00 178.88 465.20 372.55 1.651 24 102.00 100.67 430.53 190.00 1778.89 466.66 373.98 .. 1.651 25 101.79 100.60 430.00 190.00 178.36 466.65 373.98 1.651 26 102.00 100.67 430.00 190.00 178.94 464.98 372.35 1.652 27 102.00 100.67 430.53 190.00 178 Q5 466.44 373.78 1.652_ 28 101.79 100.60 430.00 190.00 178.42 466.43 373.78 1.652 29 102.00 100.67 430.00 190.00 179.00 464.76 372.14 1.652 30 102.00 100.67 430.53 190.00 179.01 466.21 373.57 1.652 31 101.79 100.60 430.00 190.00 178.48 466.21 373.57 1.653 32 102.00 100.67 430.00 190.00 179.06 464.53 371.94 1.653 33 102.00 100.67 431.05 190.00 179.02 467.67 375.00 1.653 34 101.79 100.60 430.53 190.00 178.49 467.67 375.00 1.653 35 102.00 100.67 430.53 190.00 179.07 465.99 - 373.37 1.653 36 101.79 100.60 430.00 190.00 178.54 465.99 373.37 1.653 37 101.58 100.53 430.00 190.00 177.96 467.67 375.00 1.653 38 102.00 100.67 430.00 190.00 179.12 464.31 371.73 1.653 39 102.00 100.67 431.05 190.00 179.08 467.45 374.80 1.653 40 101.79 100.60 430.53 190.00 178.55 467.45 374.80 1.654 41 102.00 100.67 430.53 190.00 179.13 465.77 373.16 1.654 42 101.58 100.53 430.00 190.00 178.02 467.45 374.80 1.654 43 101.79 100.60 430.00 190.00 178.60 465.77 373.16 1.654 44 102.00 100.67 430.00 190.00 179.18 464.09 371.53 1.654 45 102.00 100.67 431.05 190.00 179.14 467.23 374.59 1.654 46 101.79 100.60 430.53 190.00 178.61 467.23 374.59 1.654 47 102.00 100.67 430.53 190.00 179.19 465.55 372.96 1.654 48 101.58 100.53 430.00 190.00 178.08 467.22 374.59 1.654 49 101.79 100.60 430.00 190.00 178.66 465.55 372.96 1.654 50 102.00 100.67 430.00 190.00 179.24 463.87 371.33 1.655 51 102.00 100.67 431.05 190.00 179.20 467.01 374.39 1.655 52 101.79 100.60 430.53 190.00 178.67 467.01 374.39 1.655 53 102.00 100.67 430.53 190.00 179.25 465.33 372.76 1.655 54 101.58 100.53 430.00 190.00 178.14 467.00 374.39 1.655 55 101.79 100.60 430.00 190.00 178.72 465.33 372.76 1.655 56 102.00 100.67 430.00 190.00 179.30 463.65 371.12 1.655 57 102.00 100.67 431.05 190.00 179.26 466.79 374.18 1.655 58 101.79 100.60 430.53 190.00 178.73 466.79 374.18 1.655 59 102.00 100.67 430.53 190.00 179.31 465.11 372.55 1.655 60 101.79 100.60 430.00 190.00 178.78 465.11 372.55 1.656 61 102.00 100.67 430.00 190.00 179.36 463.43 370.92 1.656 62 102.00 100.67 431.05 190.00 179.32 466.57 373.98 1.656 63 101.79 100.60 430.53 190.00 178.79 466.56 373.98 1.656 64 102.00 100.67 430.53 190.00 179.37 464.89 372.35 1.656 65 101.79 100.60 430.00 190.00 178.84 464.88 372.35 1.656 66 102.00 100.67 430.00 190.00 179.43 463.21 370.71 1.656 67 102.00 100.67 431.05 190.00 179.38 466.35 373.78 1.657 68 101.79 100.60 430.53 190.00 178.85 466.34 373.78 1.657 69 102.00 100.67 430.53 190.00 179.43 464.67 372.14 1.657 70 101.79 100.60 430.00 190.00 178.90 '464.66 372.14 1.657 71 102:00 100.67 430.00 190.00 179.49 462.98 370.51 1.657 72 101.79 100.60 430.53 190.00 178.91 466.12 373.57 1.657 73 102.00 100.67 431.05 190.00 179.44 466.12 373.57 1.657 74 102.00 100.67 430.53 190.00 179.49 464.44 371.94 1.657 75 101.79 100.60 430.00 190.00 176.96 464.44 371.94 1.657 76 101.79 100.60 431.05 190.00 178.91 467.58 375.00 1.657 77 102.00 100.67 430.00 190.00 179.55 462.76 370.31 1.658 78 102.00 100.67 431.58 190.00 179.44 467.58 375.00 1.658 79 101.79 100.60 430.53 190.00 178.97 465.90 373.37 1.658 60 102.00 100.67 431.05 190.00 179.50 465.90 373.37 1.658 61 102.00 100.67 430.53 190.00 179.55 464.22 371.73 1.658 82 101.79 100.60 430.00 190.00 179.02 464.22 371.73 1.658 83 101.79 100.60 431.05 190.00 178.97 467.36 374.60 1.658 84 102.00 100.67 430.00 190.00 179.61 462.54 370.10 1.658 85 102.00 100.67 431.58 190.00 179.50 467.36 374.60 1.658 86 101.79 100.60 430.53 190.00 179.03 465.68 373.16 1.658 87 102.00 100.67 431.05 190.00 179.56 465.68 373.16 1.658 88 102.00 100.67 430.53 190.00 179.61 464.00 371.53 1.658 89 101.79 100.60 430.00 190.00 179.06 464.00 371.53 1.659 90 101.79 100.60 431.05 190.00 179.03 467.14 374.59 1.659 91 102.00 100.67 431.58 190.00 179.56 467.14 374.59 1.659 92 102.00 100.67 430.00 190.00 179.67 462.32 369.90 1.659 93 101.79 100.60 430.53 190.00 179.09 465.46 372.96 1.659 94 102.00 100.67 431.05 190.00 179.62 465.46 372.96 1.659 95 102.00 100.67 430.53 190.00 179.67 463.78 371.33 1.659 96 101.79 100.60 430.00 190.00 179.14 463.78 371.33 1.659 97 101.79 100.60 431.05 190.00 179.09 466.92 374.39 1.659 98 102.00 100.67 431.58 190.00 179.62 466.92 374.39 1.659 99 102.00 100.67 430.00 190.00 179.73 462.10 369.69 1.659 Critical Failure Surface (circle 1) Intersects: XL: 102.00 YL: 100.67 XR: 430.00 YR: 190.00 Centre: XC: 178.22 YC: 467.63 Radius: R: 374.80 Generated failure surface: (20 points) 102.00 100.67 120.27 97.34 138.68 94.93 157.19 93.43 175.75 92.64 194.31 93.18 212.84 94.44 231.28 96.61 249.59 99.69 267.72 103.68 285.64 108.56 303.29 114.32 320.64 120.95 337.63 128.43 354.24 136.74 370.41 145.86 386.11 155.77 401.30 166.45 415.94 177.87 430.00 190.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 102.00 3.46 -10.3 .66 3.72 2 0.00 35.0 432.20 219.30 122.95 1.10 2 105.66 27.53 -10.3 .30 7.42 3 100.00 18.0 3518.29 1745.78 502.47 1.05 3 112.97 55.01 -10.3 .30 7.12 3 100.00 18.0 7108.57 3488.71 1003.71 1,05 4 120.27 26.12 -7.5 .61 2.63 3 100.00 18.0 3383.00 1643.86 1323.79 1.04 5 122.88 98.46 -7.5 .90 7.97 4 2000.00 20.0 12752.31 6196.56 1803.23 1.04 6 130.78 127.47 -7.5 .90 7.97 4 2000.00 20.0 16509.17 8022.06 2286.04 1 O 7 138.68 184.00 -4.6 .25 9.28 4 2000.00 20.0 23807.01 11519.42 2697.49 1.02 8 147.93 219.49 -4.6 .25 9.28 4 2000.00 20.0 28354.20 13741.17 3193.49 1.02 9 157.19 253.60 -1.8 .28 9.28 4 2000.00 20.0 32698.05 15832.57 3574.80 1.01 10 166.47 285.01 -1.8 .28 9.28 4 2000.00 20.0 36667.10 17793.30 4004.03 1.01 11 175.75 314.39 1.0 .28 9.28 4 2000.00 20.0 40348.61 19620.88 4315.75 1.00 12 185.03 341.54 1.0 .28 9.28 4 2000.00 20.0 43718.06 21315.69 4678.01 1.00 13 194.31 365.76. 3.9 .26 9.28 4 2000.00 20.0 46683.93 22875.73 4920.51 0.99 14 203.57 388.54 3.9 .26 9.28 4 2000.00 20.0 49438.38 24300.49 5215.75 0.99 15 212.84 407.25 6.7 .22 9.28 4 2000.00 20.0 51647.17 25568.29 5389.50 0.98 16 222.06 425.58 6.7 .22 9.28 4 2000.00 20.0 53777.40 26739.59 5617.81 0.98 17 231.28 109.91 9.6 .32 2.35 4 2000.00 20.0 13856.85 6954.63 5663.04 0.98 18 233.60 385.28 9.6 .99 8.11 3 100.00 18.0 48457.04 24379.58 5953.01 0.98 19 241.59 395.82 9.6 .99 8.11 3 100.00 18.0 49602.58 25046.66 6094.35 0.98 20 249.59 70.36 12.4 .40 1.43 3 100.00 18.0 8798.37 4495.23 6139.83 0.98 21 250.99 425.11 12.4 .37 8.57 2 0.00 35.0 53138.30 27159.88 6078.34 0.94 22 259.36 433.05 12.4 .37 8.57 2 0.00 35.0 54131.80 27667.68 6191.99 0.94 23 267.72 470.31 15.2 .96 9.28 2 0.00 35.0 58788.70 30416.29 6221.23 0.93 24 276.68 475.20 15.2 .96 9.28 2 0.00 35.0 59400.35 30732.75 6285.96 0.93 25 285.64 . 470.89 18.1 .83 9.28 2 0.00 35.0 58860.83 30908.53 6261.55 0.92 26 294.46 471.43 18.1 .83 9.28 2 0.00 35.0 58928.76 30944.20 6268.78 0.92 27 303.29 357.49 20.9 .71 7.18 2 0.00 35.0 44686.07 23880.46 6193.37 0.92 28 310.00 562.18 20.9 1 .64 11.39 2 0.00 35.0 70178.35 37554.05 6136.56 0.92 29 320.64 443.11 23.8 .50 9.28 2 0.00 35.0 55178.46 30209.12 5982.10 0.92 30 329.13 435.41 23.8 .50 9.28 2 0.00 35.0 54094.81 29683.74 5665.78 0.92 31 337.63 119.83 26.6 .37 2.65 2 0.00 35.0 14865.57 8362.18 5727.36 0.92 32 340.00 150.41 26.6 .00 3.35 2 0.00 35.0 18651.68 10496.01 5674.55 0.92 33 343.00 296.31 26.6 .00 6.71 2 0.00 35.0 36708.96 20676.93 5584.65 0.92 34 349.00 253.63 26.6 .24 5.85 2 0.00 35.0 31390.11 17380.06 5463.86 0.92 35 354.24 371.24 29.4 .88 9.05 2 0.00 35.0 45932.46 24870.36 5230.86 0.93 36 362.12 356.90 29.4 .88 9.05 2 0.00 35.0 44139.82 22359.11 4993.74 0.93 37 370.00 337.09 32.1 .05 9.51 2 0.00 35.0 41653.47 20684.41 4539.43 0.93 38 378.05 296.14 32.3 .05 9.53 2 0.00 35.0 36533.76 17693.58 3968.51 0.93 39 386.11 189.45 35.1 .89 7.20 2 0.00 35.0 23328.17 11304.96 3408.80 0.94 40 392.00 87.09 35.1 .00 3.67 5 0.00 45.0 9579.68 5040.97 2648.58 0.86 41 395.00 162.25 35.1 .30 7.70 2 0.00 35.0 19903.31 9012.98 2701.78 0.94 42 401.30 99.04 37.9 .55 5.77 2 0.00 35.0 12107.67 5317.68 2228.00 0.95 43 405.85 . 162.15 37.9 1 .09 12.80 6 50.00 16.0 19862.16 7239.97 1779.03 1.12 44 415.94 27.30 40.8 .47 3.26 6 50.00 16.0 3375.27 826.62 1199.25 1.15 45 418.41 29.56 40.8 .48 4.59 6 50.00 16.0 3668.61 429.87 906.48 1.15 46 421.89 28.40 40.8 .11 10.72 2 0.00 35.0 3549.80 0.00 319.96 0.97 X -S Area: 11995.54 Path Length: 352.80 X -S Weight: 1504195.25 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 11 Full.gmf Processed: 31 Jul 2019 13:14:10 DATA: Analysis 1 - Case 11 - Full Reservoir Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 190.00 Profile: 2 (2 points) 0.00 183.00 Profile: 3 (2 points) 0.00 181.00 Profile: 4 (2 points) 0.00 180.00 Profile: 5 (2 points) 0.00 170.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 392.00 190.00 Profile: 9 (2 points) 395.00 190.00 Profile: 10 (2 points) 395.00 183.00 Profile: 11 (2 points) 395.00 181.00 Profile: 12 (2 points) 395.00 180.00 Profile: 13 (2 points) 395.00 170.00 Profile: 14 (2 points) 395.00 100.00 Profile: 15 (2 points) 392.00 97.00 Slope Surface (4 points) 0.00 100.00 - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Phreatic Surface (4 points) 0.00 183.00 Failure Surface 100.00 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay' 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 190.00 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 370.00 100.00 183.00 190.00 349.00 183.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: Centre: XC: 178.15 YC: 474.56 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 10.00 20 R 20.00 50 440.00 190.00 440.00 183.00 190.00 380.00 RESULTS: Analysis 1 - Case 11 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.327 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.99 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 430.00 190.00 176.15 474.56 360.00 2.986 <-- Critical Surface 2 105.00 101.67 430.00 190.00 178.27 474.12 379.59 2.989 3 105.00 101.67 430.00 190.00 178.39 473.68 379.18 2.992 4 105.00 101.67 430.00 190.00 178.51 473.24 378.78 2.996 5 105.00 101.67 430.53 190.00 178.58 474.47 380.00 2.997 6 105.00 101.67 430.00 190.00 178.63 472.80 378.37 2.999 7 105.00 101.67 430.53 190.00 178.70 474.03 379.59 3.000 8 105.00 101.67 430.00 190.00 178.75 472.36 377.96 3.002 9 105.00 101.67 430.53 190.00 178.82 473.59 379.18 3.003 10 105.00 101.67 430.00 190.00 178.87 471.92 377.55 3.006 11 105.00 101.67 430.53 190.00 178.94 473.15 378.78 3.007 12 105.00 101.67 431.05 190.00 179.01 474.39 380.00 3.008 13 105.00 101.67 430.00 190.00 178.99 471.48 377.14 3.009 14 105.00 101.67 430.53 190.00 179.06 472.71 378.37 3.010 15 105.00 101.67 431.05 190.00 179.13 473.95 379.59 3.011 16 105.00 101.67 430.00 190.00 179.11 471.04 376.73 3.013 17 105.00 101.67 430.53 190.00 179.18 472.27 377.96 3.013 18 104.47 101.49 430.00 190.00 177.90 474.33 380.00 3.014 19 105.00 101.67 431.05 190.00 179.25 473.51 379.18 3.015 20 105.00 101.67 430.00 190.00 179.23 470.60 376.33 3.016 21 105.00 101.67 430.53 190.00 179.30 471.83 377.55 3.017 22 104.47 101.49 430.00 190.00 178.02 473.89 379.59 3.018 23 105.00 101.67 431.05 190.00 179.37 473.07 378.78 3.018 24 105.00 101.67 431.58 190.00 179.44 474.30 380.00 3.019 25 105.00 101.67 430.00 190.00 179.35 470.16 375.92 3.019 26 105.00 101.67 430.53 190.00 179.42 471.39 377.14 3.020 27 104.47 101.49 430.00 190.00 178.14 473.45 379.18 3:021 28 105.00 101.67 431.05 190.00 179.49 472.63 378.37 3.021 29 105.00 101.67 431.58 190.00 179.56 473.66 379.59 3.022 30 105.00 101.67 430.00 190.00 179.47 469 72 375.51 3.023 31 105.00 101.67 430.53 190.00 179.54 470.95 376.73 3.023 32 104.47 101.49 430.00 190.00 178.26 473.01 378.78 3.024 33 105.00 101.67 431.05 190.00 179.61 472.19 377.96 3.025 34 104.47 101.49 430.53 190.00 178.33 474.25 380.00 3.025 35 105.00 101.67 431.58 190.00 179.68 473.42 379.18 3.026 36 105.00 101.67 430.00 190.00 179.59 469.28 375.10 3.026 37 105.00 101.67 430.53 190.00 179.66 470.51 376.33 3.027 38 104.47 101.49 430.00 190.00 178.37 472.57 378.37 3.028 39 105.00 101.67 431.05 190.00 179.73 471.75 377.55 3.028 40 104.47 101.49 430.53 190.00 178.45 473.81 379.59 3.028 41 105.00 101.67 431.58 190.00 179.80 472.98 378.78 3.029 42 105.00 101.67 430.00 190.00 179.71 466.84 374.69 3.029 43 105.00 101.67 432.11 190.00 179.67 474.22 360.00 3.030 44 105.00 101.67 430.53 190.00 179.78 470.07 375.92 3.030 45 104.47 101.49 430.00 190.00 178.49 472.13 377.96 3.031 46 105.00 101.67 431.05 190.00 179.65 471.31 377.14 3.031 47 104.47 101.49 430.53 190.00 176.57 473.37 379.18 3.032 48 105.00 101.67 431.58 190.00 179.92 472.54 378.37 3.032 49 105.00 101.67 430.00 190.00 179.83 468.40 374.29 3.033 50 105.00 101.67 432.11 190.00 179.99 473.78 379.59 3.033 51 105.00 101.67 430.53 190.00 179.90 469.63 375.51 3.034 52 104.47 101.49 430.00 190.00 178.61 471.69 377.55 3.034 53 105.00 101.67 431.05 190.00 179.97 470.87 376.73 3.035 54 104.47 101.49 430.53 190.00 178.69 472.93 378.78 3.035 55 105.00 101.67 431.58 190.00 180.04 472.10 377.96 3.036 56 104.47 101.49 431.05 190.00 178.76 474.16 380.00 3.036 57 105.00 101.67 430.00 190.00 179.95 467.95 373.88 3.036 58 105.00 101.67 432.11 190.00 180.11 473.34 379.18 3.037 59 105.00 101.67 430.53 190.00 180.02 469.19 375.10 3.037 60 104.47 101.49 430.00 190.00 178.73 471.25 377.14 3.037 61 105.00 101.67 431.05 190.00 180.09 470.43 376.33 3.038 62 104.47 101.49 430.53 190.00 178.80 472.49 378.37 3.038 63 105.00 101.67 431.58 190.00 180.16 471.66 377.55 3.039 64 104.47 101.49 431.05 190.00 178.88 473.72 379.59 3.039 65 105.00 101.67 430.00 190.00 180.07 467.51 373.47 3.040 66 105.00 101.67 432.11 190.00 180.23 472.90 378.78 3.040 67 105.00 101.67 430.53 190.00 180.14 468.75 374.69 3.040 68 104.47 101.49 430.00 190.00 178.85 470.81 376.73 3.041 69 105.00 101.67 432.63 190.00 180.30 474.13 380.00 3.041 70 104.47 101.49 430.53 190.00 178.92 472.05 377.96 3.041 71 105.00 101.67 431.05 190.00 180.21 469.98 375.92 3.042 72 105.00 101.67 431.58 190.00 180.28 471.22 377.14 3.042 73 104.47 101.49 431.05 190.00 179.00 473.28 379.13 3.043 14 103.95 101.32 430.00 190.00 177.64 474.10 360.00 3.043 75 105.00 101.67 430.00 190.00 180.19 467.07 373.06 3.043 76 105.00 101.67 432.11 190.00 180.35 472.46 378.37 3.043 77 105.00 101.67 430.53 190.00 160.26 466.31 374.29 3.044 78 104.47 101.49 430.00 190.00 178.97 470.37 376.33 3.044 79 105.00 101.67 432.63 190.00 180.42 473.69 379.59 3.044 80 104.47 101.49 430.53 190.00 179.04 471.60 377.55 3.045 81 105.00 101.67 431.05 190.80 180.33 469.54 375.51 3.045 82 105.00 101.67 431.58 190.90 160.40 470.78 376.73 3.046 83 103.95 101.32 430.00 190.90 177.76 473.66 379.59 3.046 64 104.47 101.49 431.05 190.90 179.11 472.84 378.78 3.046 85 105.00 101.67 430.00 190.90 180.31 466.63 372.65 3.046 66 105.00 101.67 432.11 190.00 180.47 472.01 377.96 3.047 87 104.47 101.49 431.58 190.00 179.19 474.07 380.00 3.047 88 105.00 101.67 430.53 190.00 180.38 467.87 373.88 3.047 89 104.47 101.49 430.00 190.00 179.09 469.93 375.92 3.047 90 105.00 101.67 432.63 190.00 180.54 473.25 379.18 3.047 91 104.47 101.49 430.53 190.00 179.16 471.16 377.14 3.048 92 105.00 101.67 431.05 190.00 180.45 469.10 375.10 3.048 93 105.00 101.67 431.58 190.00 180.52 470.34 376.33 3.049 94 103.95 101.32 430.00 190.00 177.88 473.22 379.18 3.049 95 104.47 101.49 431.05 190.00 179.23 472.40 378.37 3.049 96 105.00 101.67 430.00 190.00 180.43 466.19 372.24 3.050 97 105.00 101.67 432.11 190.00 180.59 471.57 377.55 3.050 98 104.47 101.49 431.58 190.00 179.31 473.63 .379.59 3.050 99 105.00 101.67 430.53 190.00 180.50 467.43 373.47 3.050 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: 190.00 Centre: XC: 178.15 YC: 474.56 Radius: R: 380.00 Generated failure surface: (20 points) 105.00 101.67 123.10 98.57 141.33 96.35 159.64 95.01 178.00 94.56 196.35 94.99 214.67 96.32 232.90 98.52 251.00 101.61 268.93 105.56 286.65 110.38 304.12 116.04 321.29 122.55 338.13 129.87 354.59 138.00 370.64 146.92 386.25 156.60 401.36 167.02 415.96 178.17 430.00 190.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 23.91 -9.7 .74 9.88 2 0.00 35.0 2988.56 50640.70 5287.37 1.06 2 114.74 58.73 -9.7 .36 8.49 3 100.00 18.0 7437.03 44328.32 5689.30 1.03 3 123.10 68.20 -6.9 .44 6.48 3 100.00 18.0 8712.25 34316.46 5998.97 .1.02 4 129.54 8/.05 -6.9 .44 6.48 3 100.00 18.0 11149.50 34633.62 6246.44 1.02 5 135.97 86.82 -6.9 .36 5.40 4 2000.00 20.0 11137.06 29064.72 6553.61 1.02 6 141.33 176.62 -4.2 .16 9.18 4 2000.00 20.0 27661.97 49835.57 6760.02 1.01 7 150.48 210.70 -4.2 .16 9.18 4 2000.00 20.0 27019.08 50218.71 7047.58 1.01 6 159.64 243.34 -1.4 .18 9.18 4 2000.00 20.0 31167.32 50474.43 7260.71 1.00 9 168.82 273.49 -1.4 .18 9.18 4 2000.00 20.0 34969.32 50603-59 7484.66 •1.00 10 178.00 301.62 1.4 .18 9.18 4 2000.00 20.0 38485.51 50606.26 7632.29 1.00 11 187.18 327.70 1.4 .18 9.18 4 2000.00 20.0 41713.63 50481.34 7792.57 1.00 12 196.35 350.90 4.1 .16 9.18 4 2000.00 20.0 44547.61 50229.52 7874.92 0.99 13 205.51 372.80 4.1 .16 9.18 4 2000.00 20.0 47187.98 49850.73 7971.57 0.99 14 214.67 239.86 6.9 .64 5.68 4 2000.00 20.0 30284.67 30625.55 7982.65 0.99 15 220.31 275.46 6.9 .29 6.34 3 100.00 18.0 34696.54 33866.86 8084.54 0.99 16 226.61 283.87 6.9 .29 6.34 3 100.00 18.0 35671.04 33565.68 8107.57 0.99 17 232.90 403.09 9.7 .67 8.80 3 100.00 18.0 50488.18 45964.37 8088.19 1:00 18 241.57 452.25 9.7 .43 9.57 2 0.00 35.0 56531.73 49064.51 8015.95 0.98 19 251.00 441.41 12.4 .97 9.18 2 0.00 35.0 55175.70 46064.21 7947.67 0.97 20 259.97 450.47 12.4 .97 9.18 2 0.00 35.0 56309.11 44931.46 7864.49 0.97 21 266.93 452.05 15.2 .86 9.18 2 0.00 35.0 56505.96 43675.71 7759.67 .0.97 22 277.79 456.88 15.2 .86 9.18 2 0.00 35.0 57109.98 42296.28 7641.49 0.97 23 286.65 453.06 18.0 .73 9.11 2 0.00 35.0 56632.88 40794.43 7461.28 0.98 24 295.38 453.74 18.0 .73 9.10 2 0.00 35.0 56717.63 39171.13 7289.01 0.98 25 304.12 305.08 20.7 .88 6.29 2 0.00 35.0 38135.41 25844.34 7090.31 .0.98 26 310.00 291.27 20.7 .64 6.04 2 0.00 35.0 36382.66 23977.44 6934.73 0.98 27 315.64 289.83 20.7 .64 6.04 2 0.00 35.0 36148.91 23172.35 6777.95 0.98 26 321.29 427.58 23.5 .42 9.18 2 0.00 35.0 53230.32 33584.67 6519.50 0.99 29 329.71 420.37 23.5 .42 9.18 2 0.00 35.0 52210.67 31486.30 6229.5G 0.99 30 338.13 92.41 26.3 .87 2.09 2 0.00 35.0 11460.96 6863.00 6011.71 1.00 31 340.00 146.89 26.3 .00 3.35 2 0.00 35.0 18210.74 10744.29 5913.30 1.00 32 343.00 289.44 26.3 .00 6.69 2 0.00 35.0 35849.83 20560.68 5729.64 1.00 33 349.00 264.54 26.3 .59 6.24 2 0.00 35.0 32732.37 18047.85 5546.50 1.00 34 354.59 354.43 29.1 .70 8.81 2 0.00 35.0 43841.64 23568.13 5343.01 1.01 35 362.30 341.25 29.0 .70 8.61 2 0.00 35.0 42193.70 21214.85 5122.99 1.01 36 370.00 332.74 31.6 .12 9.54 2 0.00 35.0 41104.79 20212.41 4689.13 1.03 37 378.12 291.79 31.8 .12 9.56 2 0.00 35.0 35986.51 17252.14 4096.44 1.03 38 386.25 180.74 34.6 .75 6.99 2 0.00 35.0 22247.24 10646.96 3540.77 1.05 39 392.00 85.19 34.6 .00 3.64 5 0.00 45.0 9371.38 4865.72 2788.21 0.99 40 395.00 160.18 34.6 .36 7.73 2 0.00 35.0 19640.43 8764.41 2814.43 1.05 41 401.36 83.76 37.4 .90 4.90 2 0.00 35.0 10236.17 4433.39 2364.51 1.07 42 405.26 170.27 37.4 1 .70 13.45 6 50.00 16.0 20860.70 7488.40 1642.92 1.17 43 415.96 23.75 40.1 .18 2.85 6 50.00 16.0 2937.37 695.49 1254.17 1.21 44 418.14 30.25 40.1 .56 4.65 6 50.00 16.0 3755.15 435.71. 969.94 1.21 45 421.69 29.07 40.1 .31 10.8'5 2 0.00 35.0 3633.54 0.00 365.29 1.09 X -S Area: 11554.87 Path Leng h: 348.88 X -S Weight: 1445470.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 1 RD EQ.gmf Processed: 29 Jul 2019 15:52:28 DATA: Analysis 1 - Case 1 - Rapid Draw Down EQ Material Properties (6 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 150.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.-0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 190.00 Profile: 2 (2 points) 0.00 163.00 Profile: 3 (2 points) 0.00 160.00 Profile: 4 (2 points) 0.00 155.00 Profile: 5 (2 points) 0.00 137.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 392.00 190.00 Profile: 9 (2 points) 395.00 190.00 Profile: 10 (2 points) 395.00 163.00 Profile: 11 (2 points) 395.00 160.00 Profile: 12 (2 points) 395.00 155.00 Profile: 13 (2 points) 395.00 137.00 Profile: 14 (2 points) 395.00 100.00 Profile: 15 (2 points) 392.00 97.00 Slope Surface (4 points) - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay Unit weight of water/medium above ground: 62.400 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 0.00 100.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 100.0D 100.00 2 - Sand and Gravel 190.00 6 - Clay 163.00 2 - Sand and Gravel 160.00 6 - Clay 155.00 2 - Sand and Gravel 137.00 3 - Weathered Bedrock 100.00 4 —Stable Bedrock 97.00 5 - Slurry Wall 190.00 2 - Sand and Gravel 190.00 6 - Clay 163.00 2 - Sand and Gravel 160.00 6 - Clay. 155.00 2 - Sand and Gravel 137.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 370.00 190.00 352.00 184.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 104.00 YL: 101.33 XR: 435.00 YR: Centre: XC: 186.84 YC: 454.24 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.073 Variable Restraints Parameter descriptor:. Range of variation: Trial positions within range: XL 8.00 20 XR 10.00` 20 R 45.00 50 450.00 190.00 450.00 184.00 190.00 362.50 RESULTS: Analysis 1 - Case 1 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.397 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.30 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 104.00 101.33 435.00 190.00 186.84 454.24 362.50 1.300 <-- Critical Surface 2 104.00 101.33 435.00 190.00 187.11 453.23 361.58 1.303 3 104.00 101.33 435.53 190.00 187.26 454.14 362.50 1.303 4 104.00 101.33 435.00 190.00 187.38 452.23 360.66 1.305 5 104.00 101.33 435.53 190.00 187.53 453.13 361.58 1.306 6 104.00 101.33 436.05 190.00 187.68 454.04 362.50 1.306 7 103.58 101.19 435.00 190.00 186.64 454.05 362.50 1.307 8 104.00 101.33 435.00 190.00 187.65 451.22 359.74 1.308 9 104.00 101.33 435.53 190.00 187.80 452.13 360.66 1.309 10 103.58 101.19 435.00 190.00 186.91 453.04 361.58 1.310 11 103.58 101.19 435.53 190.00 187.06 453.95 362.50 1.310 12 104.00 101.33 436.05 190.00 187.95 453.03 361.58 1.310 13 104.00 101.33 435.00 190.00 187.92 450.21 358.83 1.311 14 103.58 101.19 435.00 190.00 187.16 452.03 360.66 1.312 15 104.00 101.33 436.58 190.00 188.10 453.94 362.50 1.312 16 104.00 101.33 435.53 190.00 188.07 451.12 359.74 1.312 17 104.00 101.33 436.58 190.00 186.37 452.93 361.58 1.313 18 104.00 101.33 435.53 190.00 188.34 450.11 358.83 1.313 19 103.58 101.19 435.53 190.00 187.33 452.94 361.58 1.313 20 104.00 101.33 436.05 190.00 188.49 451.02 359.74 1.314 21 104.00 101.33 436.05 190.00 188.22 452.03 360.66 1.314 22 104.00 101.33 437.11 190.00 188.52 453.84 362.50 1.314 23 103.58 101.19 436.05 190.00 187.48 453.85 362.50 1.314 24 104.00 101.33 435.00 190.00 186.46 448.19 356.99 1.315 25 104.0U 101.33 435.00 190.00 186.19 449.20 35/.91 1.315 26 104.00. 101.33- 436.58 190 00 188.64 451.92 360.66 1.3)5 27 104.00 101.33 435.53 190.00 188.61 449.10 357.91 1.315 28 103.58 101.19 435.00 190.00 187.45 451.03 359.74 1.316 29 104.00 101.33. 435.00 190.00 189.28 445.15 354.23 1.31.6 30 104.00 101.33 436.05 190.00 188.76 450.01 358.83 1.316 31 104.00 101.33 435.53 190.00 189.42 446.06 355.15 1.316 32 104.00 101.33 437.11 190.00 186.79 452.83 361.58 1.316 33 103.58 101.19 436.58 190.00 187.90 453.75 362.50 1.317 34 104.00 101.33 435.00 190.00 189.00 446.16 355.15 1.317 35 104.00 101.33 436.05 190.00 189.57 446.97 356.07 1.317 36 103.58 101.19 435.53 190.00 187.60 451.93 360.66 1.317 37 104.00 101.33 435.53 190.00 189.15 447.07 356.07 1.317 38 103.56 101.19 435.53 190.00 187.87 450.92 359.74 1.317 39 104.00 101.33 435.00 190.00 186.73 447.18 356.07 1.317 40 104.00 101.33 436.58 190.00 188.91 450.91 359.74 1.317 41 104.00 101.33 436.05 190.00 189.30 447.98 356.99 1.318 42 103.58 101.19 436.05 190.00 186.02 451.83 360.66 1.318 43 104.00 101.33 435.53 190.00 188.68 448.09 356.99 1.318 44 104.00 101.33 436.58 190.00 189.72 447.88 356.99 1.318 45 104.00 101.33 437.63 190.00 188.94 453.74 362.50 1.318 46 103.58 101.19 436.05 190.00 187.75 452.84 361.58 1.318 47 104.00 101.33 436.05 190.00 189.03 448.99 357.91 1.318 48 104.00 101.33 436.58 190.00 189.45 448.89 357.91 1.319 49 104.00 101.33 437.11 190.00 189.06 451.82 360.66 1.319 50 103.58 101.19 435.00 190.00 187.99 449.01 357.91 1.319 51 103.58 101.19 436.58 190.00 188.17 452.74 361.58 1.319 52 104.00 101.33 436.58 190.00 189.16 449.90 358.83 1.319 53 103.58 101.19 435.00 190.00 187.72 450.02 358.83 1.319 54 103.16 101.05 435.00 190.00 186.43 453.86 362.50 1.319 55 103.58 101.19 435.53 190.00 186.14 449.91 358.83 1.319 56 104.00 101.33 437.11 190.00 189.60 449.60 358.83 1.320 57 103.58 101.19 436.05 190.00 188.29 450.82 359.74 1.320 58 104.00 101.33 437.63 190.00 189.21 452.73 361.58 1.320 59 104.00 101.33 437.11 190.00 189.33 450.81 359.74 1.320 60 103.56 101.19 437.11 190.00 188.32 453.65 362.50 1.320 61 104.00 101.33 438.16 190.00 189.36 453.64 362.50 1.321 62 104.00 101.33 438.16 190.00 189.90 451.62 360.66 1.321 63 104.00 101.33 437.63 190.00 189.75 450.71 359.74 1.321 64 104.00 101.33 438.16 190.00 189.63 452.63 361.58 1.321 65 104.00 101.33 437.63 190.00 189.48 451.72 360.66 1.321 66 103.16 101.05 435.00 190.00 186.70 452.85 361.58 1.321 67 103.58 101.19 436.58 190.00 188.44 451.73 360.66 1.321 68 104.00 101.33 438.68 190.00 190.05 452.53 361.58 1.322 69 104.00 101.33 435.00 190.00 189.55 444.14 353.32 1.322 70 104.00 101.33 435.53 190.00 189.69 445.05 354.23 1.322 71 102.74 100.91 435.00 190.00 186.23 453.67 362.50 1.322 72 103.16 101.05 435.53 190.00 186.85 453.76 362.50 1.323 73 103.16 101.05 435.00 190.00 188.06 447.80 356.99 1.323 74 103.16 101.05 435.53 190.00 188.21 446.71 357.91 1.323 75 104.00 101.33 438.68 190.00 189.78 453.54 362.50 1.323 76 103.58 101.19 437.11 190.00 188.59 452.64 361.58 1.323 77 103.16 101.05 436.05 190.00 188.35 449.62 358.83 1.323 78 104.00 101.33 436.05 190.00 189.84 445.96 355.15 1.323 79 104.00 101.33 439.21 190.00 190.20 453.44 362.50 1.323 60 103.16 101.05 436.05 190.00 167.27 453.66 362.50 1.324 81 104.00 101.33 435.00 190.00 189.82 443.12 352.40 1.324 B2 103.58 101.19 435.00 190.0D 188.53 446.98 356.07 1.324 83 103.58 101.19 435.53 190.00 188.68 447.89 356.99 1.324 64 104.00 101.33 435.53 190.00 189.97 444.03 353.32 1.324 85 102.74 100.91 435.00 190.00 187.31 449.63 358.83 1.324 86 103.58 101.19 437.63 190.00 188,74 453.55 362.50 1.324 87 103.16 101.05 435.00 190.00 187.79 448.81 357.91 1.324 68 102.74 100.91 435.53 190.00 187.46 450.54 359.74 1.324 89 103.16 101.05 435.53 190.00 187.93 449.72 358.83 1.324 90 103.58 101.19 436.05 190.00 188.83 448.80 357.91 1.324 91 104.00 101.33 437.11 190.00 189.67 448.79 357.91 1.324 92 103.16 101.05 435.00 190.00 187.24 450.83 359.74 1.324 93 102.74 100.91 436.05 190.00 187.61 451.45 360.66 1.324 94 103.16 101.05 436.05 190.00 186.08 450.63 359.74 1.324 95 103.16 101.05 435.00 190.00 186.97 451.64 360.66 1.324 96 104.00 101.33 436.58 190.00 189.99 446.67 356.07 1.325 97 103.16 101.05 435.53 190.00 187.39 451.74 360.66 1.325 98 104.00 101.33 436.05 190.00 190.11 444.94 354.23 1.325 99 102.74 100.91 435.00 190.00 186.77 451.65 360.66 1.325 Critical Failure Surface (circle 1) Intersects: XL: 104.00 YL: Centre: XC: 186.84 YC: Generated failure surface: (20 points) 104.00 101.33 122.39 197.18 91.89 215.94 289.68 106.63 307.55 375.31 144.59 391.09 101.33 454.24 97.52 92.91 112.43 154.76 XR: 435.00 Radius: 140.95 234.62 325.09 406.33 94.66 94.90 119.14 165.74 YR: R: 190.00 362.50 159.64 253.17 342.26 420.98 92.76 97.66 126.75 177.50 178.40 271.54 359.02 435.00 91.84 101.77 135.24 190.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 104.00 11.16 -11.7 6.42 6.56 2 0.00 35.0 1395.06 711.26 230.85 1.15 2 110.42 30.47 -11.7 5.98 6.11 3- 100.00 18.0 3868.56 1942.04 681.36 1.08 3 116.41 49.84 -11.7 5.98 6.11 3 100.00 18.0 6408.09 3176.17 11i7:95 1.08 4 122.39 36.07 -8.8 3.35 3.39 3 100.00 18.0 4655.84 2277.35 1430.43 1.05 5 125.74 102.19 -8.8 .7.61 7.70 4 2000.00 20.0 13209.81 6451.69 2024.71 1.06 6 133.35 130.39 -8.8 7.61 7.70 4 2000.00 20.0 16877.19 8232.01 2518.15 1.06 7 140.95 196.45 -5.8 9.34 9.39 4 2000.00 20.0 25426.34 12321.53 2922.87 1.03 8 150.3O 234.40 -5.8 9.34 9.39 4 2000.00 20.0 30311.47 14701.65 3453.58 1.03 9 159.64 271.20 -2.8 9.38 9.39 4 2000.00 20.0 35020.50 16943.21 3637.26 1.02 10 169.02 304.86 -2.8 9.38 9.39 4 2000.00 20.0 39297.23 19046.10 4296.45 1.02 11 176.40 336.66 0.2 9.39 9.39 4 2000.00 20.0 43306.81 21007.6O 4605.57 1.00 12 187.79 365.83 0.2 9.39 9.39 4 2000.00 20.0 46949.01 22827.64 4993.25 1.00 13 197.18 286.46 3.1 6.91 6.92 4 2000.00 .20.0 36683.07 17901.57 5186.98 0.99 14 204.09 299.76 3.1 6.91 6.92 4 2000.00 20.0 38304.55 18733.01 5420.00 0.99 15 211.00 222.52 3.1 4.94 4.95 4 2000.00 20.0 28410.34 13905.85 5624.68 0.99 16 215.94 436.98 6.1 9.34 9.39 4 2000.00 20.0 55'187.22 27422.46 5726.12 0.98 17 225.28 456.75 6.1 9.34 9.39 4 2000.00 20.0 58283.58 28662.87 5989.52 0.98 18 234.62 332.43 9.1 6.58 6.66 4 2000.00 20.0 42388.35 21005.29 6069.34 0.97 19 241.19 339.95 9.1 6.58 6.66 4 2000.00 20.0 43304.99 21480.70 6205.80 0.97 20 247.77 284.40 9.1 5.39 5.46 3 100.00 18.0 36197.41 17970.57 6567.98 0.97 21 253.17 540.42 12.0 10.05 10.27 3 100.00 18.0 68673.00 34479.29 6644.99 0.97 22 263.21 97.56 12.0 1.79 1.83 2 0.00 35.0 12385.54 6224.60 6557.97 0.92 23 265.00 359.53 12.0 6.54 6.68 2 0.00 35.0 45646.73 22937.99 6618.95 0.92 24 271.54 471.32 15.0 8.46 8.76 2 0.00 35.0 59829.30 30447.37 6615.21 0.90 25 280.00 506.28 15.0 9.00 9.32 2 0.00 35.0 64338.09 32705.78 6690.01 0.90 26 289.00 525.10 17.8 9.27 9.74 2 0.00 35.0 66806.48 34404.52 6664.80 0.90 27 298.27 525.89 18.0 9.27 9.75 2 0.00 35.0 66904.38 34497.34 6668.63 0.89 28 307.55 495.93 20.9 8.77 9.39 2 0.00 35.0 63096.25 33132.99 6567.30 0.89 29 316.32 492.14 20.9 8.77 9.39 2 0.00 35.0 62623.16 32880.14 6517.96 0.89 30 325.09 475.83 23.9 8.59 9.39 2 0.00 35.0 60560.14 32477.14 6360.75 0.68 31 333.67 467.73 23.9 - 8.59 9.39 2 0.00 35.0 59547.68 31924.31 6254.21 0.88 32 342.26 517.76 26.9 9.74 10.92 2 0.00 35.0 65947.30 36219.40 6030.65 0.88 33 352.0O 362.73 26.9 7.02 7.66 2 0.00 35.0 46225.16 24800.67 5852.93 0.88 34 359.02 155.75 29.8 3.07 3.54 2 0.00 35.0 19855.13 10574.75 5646.14 0.88 35 362.09 391.08 29.8 7.91 9.12 6 150.00 22.0 49774.55 25468.61 5703.44 0.98 36 370.00 249.11 29.8 5.31 6.12 6 150.00 22.0 31614.26 15629.77 5385.92 0.98 37 375.31 338.38 32.8 7.89 9.39 6 150.00 22.0 42812.71 21606.95 4840.83 0.99 38 383.20 298.21 32.8 7.89 9.39 6 150.00 22.0 37550.65 18624.67 4232.45 0.99 39 391.09 132.15 35.8 3.91 4.82 5 0.00 45.0 14536.79 8361.89 3013.53 0.79 40 395.00 104.88 35.8 3.36 4.14 2 0.00 35.0 13170.92 6516.41 3263.43 0.89 41 398.36 118.64 35.8 4.16 5.13 6 150.00 22.D 14867.04 7204.03 3107.02 1.01 42 402.52 97.60 35.8 3.61 4.69 2 0.00 35.0 12200.09 5749.51 2650.27 0.89 43 406.33 156.13 38.7 7.32 9.39 2 0.00 -.35.0 19515.88 8975.69 2148.91 0.90 44 413.66- 113.07 38.7 7.32 9.39 2 0.00 35.0 14134.19 5530.94 1525.17 0.90 45 420.98 67.43 41.7 7.29 9.77 2 0.00 35.0 9428.39 1980.30 846.95 0.91 46 426.27 20.19 41.7 6.73 9.02 2 0.00 35.0 2523.74 0.00 253.37 0.91 X -S Area: 12809.61 Path Length: 356.87 X -S Weight: 1629652.75 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 1 Full EQ.gmf Processed: 30 Jul 2019 10:34:53 DATA: Analysis 1 - Case 1 - Full Reservoir EQ Material Properties (6 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 150.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 190.00 Profile: 2 (2 points) 0.00 163.00 Profile: 3 (2 points) 0.00 160.00 Profile: 4 (2 points) 0.00 155.00 Profile: 5 (2 points) 0..00 137.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 392.00 190.00 Profile: 9 (2 points) 395.00 190.00 Profile: 10 (2 points) 395.00 163.00 Profile: 11 (2 points) 395.00 160.00 Profile: 12 (2 points) 395.00 155.00 Profile: 13 (2 points) 395.00 137.00 Profile: 14 (2 points) 395.00 100.00 Profile: 15 (2 points) 392.00 97.00 Slope Surface (4 points) - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay Unit weight of water/medium above ground: 62.400 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 Material beneath: 450.00 0.00 100.00 Phreatic Surface (4 points) 0.00 184.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 190.00 6 - Clay 163.00 2 - Sand and Gravel 160.00 6 - Clay 155.00 2 - Sand and Gravel 137.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 190.00 2 - Sand and Gravel 190.00 6 - Clay 163.00 2 - Sand and Gravel 160.00 6 - Clay 155.00 2 - Sand and Gravel 137.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 184.00 370.00 190.00 352.00 184.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 435.00 YR: Centre: XC: 187.32 YC: 454.69 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.0-0 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 10.00 20 R 45.00 50 450.00 190.00 450.00 184.00 190.00 362.50 RESULTS: Analysis 1 - Case 1 - Full Reservoir EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.277 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.11 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 435.00 190.00 187.32 454.69 362.50 2.107 <-- Critical Surface 2 105.00 101.67 435.53 190.00 187.75 454.60 362.50 2.111 3 105.00 101.67 435.00 190.00 187.59 453.69 361.58 2.111 4 105.00 101.67 435.53 190.00 186.02 453.59 361.58 2.115 5 105.00 101.67 435.00 190.00 187.86 452.68 360.66 2.115 6 105.00 101.67 436.05 190.00 186.17 454.50 362.50 2.115 7 105.00 101.67 435.53 190.00 188.28 452.58 360.66 2.119 8 105.00 101.67 435.00 190.00 188.13 451.67 359.74 2.119 9 105.00 101.67 436.05 190.00 188.44 453.49 361.58 2.119 10 105.00 101.67 436.58 190.00 188.59 454.40 362.50 2.121 11 104.47 101.49 435.00 190.00 187.07 454.46 362.50 2.121 12 105.00 101.67 435.53 190.00 188.55 451.57 359.74 2.123 13 105.00 101.67 435.00 190.00 186.40 450.67 358.83 2.123 14 105.00 101.67 436.05 190.00 186.70 452.48 360.66 2.123 15 104.47 101.49 435.53 190.00 187.49 454.36 362.50 2.124 16 105.00 101.67 436.58 190.00 188.86 453.39 361.58 2.124 17 104.47 101.49 435.00 190.00 187.34 453.45 361.58 2.125 18 105.00 101.67 435.53 190.00 188.82 450.57 358.83 2.126 19 105.00 101.67 437.11 190.00 189.01 454.30 362.50 2.126 20 105.00 101.67 435.00 190.00 188.67 449.66 357.91 2.127 21 105.00 101.67 436.05 190.00 188.97 451.47 359.74 2.127 22 104.47 101.49 435.53 190.00 187.76 453.35 361.58 2.128 23 104.47 101.49 436.05 190.00 187.91 454.26 362.50 2.128 24 104.47 101.49 435.00 190.00 187.61 452.44 360.66 2.128 25 105_.00 101.67 436.58 190.00 189.12 452.38 360.66 2.130 26 105.00 101.67 435.00 190.00 186.94 448.65 356.99 2.131 27 105.00 101.67 435.53 190.00 189.09 449.56 357.91 2.132 28 104.47 101.49 435.53 190.00 186.03 452.34 360.66 2.132 29 104.47 101.49 436.05 190.00 186.18 453.25 361.58 2.132 30 104.47 101.49 435.00 190.00 187.88 451.43 359.74 2.132 31 105.00 101.67 437.11 190.00 189.28 453.29 361.58 2.133 32 105.00 101.67 436.05 190.00 169.24 450.46 358.83 2.134 33 104.47 101.49 436.58 190.00 168.33 454.16 362.50 2.134 34 103.95 101.32 435.00 190.00 186.82 454.22 362.50 2.134 35 105.00 101.67 438.16 190.00 189.85 454.10 362.50 2.135 36 105.00 101.67 436.05 190.00 189.51 449.45 357.91 2.135 37 105.00 101.67 437.63 190.00 189.43 454.20 362.50 2.135 38 105.00 101.67 437.63 190.00 189.69 453.19 361.58 2.136 39 104.47 101.49 435.53 190.00 183.30 451.33 359.74 2.136 40 104.47 101.49 435.00 190.00 188.15 450.43 358.83 2.136 41 105.00 101.67 436.58 190.00 189.39 451.37 359.74 2.136 42 105.00 101.67 436.58 190.00 189.66 450.36 358.83 2.136 43 105.00 101.67 435.00 190.00 189.21 447.64 356.07 2.137 44 104.47 101.49 436.05 190.00 188.45 452.24 360.66 2.137 45 103.95 101.32 435.53 190.00 167.24 454.12 362.50 2.138 46 105.00 101.67 437.11 190.00 169.81 451.27 359.74 2.138 47 105.00 101.67 435.53 190.00 189.36 448.54 356.99 2.138 48 105.00 101.67 435.53 190.00 189.63 447.53 356.07 2.138 49 103.95 101.32 435.00 190.00 187.08 453.21 361.58 2.138 50 105.00 101.67 435.00 190.00 189.49 446.62 355.15 2.138 51 105.00 101.67 438.16 190.00 190.11 453.09 361.58 2.139 52 105.00 101.67 437.11 190.00 189.54 452.28 360.66 2.139 53 105.00 101.67 436.05 190.00 189.78 448.44 356.99 2.139 54 105.00 101.67 437.63 190.00 189.96 452.18 360.66 2.140 55 104.47 101.49 436.58 190.00 186.60 453.15 361.58 2.140 56 105.00 101.67 436.58 190.00 189.93 449.35 357.91 2.140 57 105.00 101.67 438.68 190.00 190.26 454.00 362.50 2.141 58 104.47 101.49 435.00 190.00 168.42 449.42 357.91 2.141 59 103.95 101.32 435.53 190.00 187.51 453.11 361.58 2.141 60 103.95 101.32 436.05 190.00 187.66 454.02 362.50 2.141 61 105.00 101.67 437.11 190.00 190.08 450.26 358.83 2.142 62 103.95 101.32 435.00 190.00 187.35 452.20 360.66 2.142 63 105.00 101.67 435.53 190.00 169.90 446.52 355.15 2.142 64 104.47 101.49 435.53 190.00 188.57 450.32 358.83 2.142 65 105.00 101.67 435.00 190.00 189.76 445.61 354.23 2.142 66 105.00 101.67 438.16 190.00 190:38 452.08 360.66 2.143 67 104.47 101.49 437.11 190.00 188.75 454.06 362.50 2.143 68 105.00 101.67 436.05 190.00 190.05 447.43 356.07 2.14.3 69 104.47 101.49 437.11 190.00 189.02 453.05 361.58 2.143 70 105.00 101.67 437.63 190.00 190.23 451.17 359.74 2.143 71 104.47 101.49 436.05 190.00 168.72 451.23 359.74 2.144 72 104.47 101.49 436.05 190.00 188.99 450.22 358.63 2.144 73 105.00 101.67 436.58 190.00 190.20 448.34 356.99 2.144 74 104.47 101.49 437.63 190.00 199.17 453.96 362.50 2.145 75 104.47 101.49 436.58 190.00 189.14 451.13 359.74 2.145 76 105.00 101.67 438.68 190.00 190.53 452.99 361.58 2.145 77 105.00 101.67 435.53 190.00 190.17 445.51 354.23 2.146 78 105.00 101.67 437.11 190.00 190.35 449.25 357.91 2.146 79 103.95 101.32 435.00 190.00 187.63 451.19 359.74 2.146 80 105.00 101.67 435.00 190.00 190.03 444.60 353.32 2.146 81 104.47 101.49 436.58 190.00 188.87 452.14 360.66 2.146 82 105.00 101.67 438.16 190.00 190.65 451.07 359.74 2.146 83 103.95 101.32 435.53 190.00 187.78 452.10 360.66 2.147 84 104.47 101.49 437.11 190.00 189.29 452.04 360.66 2.147 65 105.00 101.67 436.05 190.00 190.32 446.42 355.15 2.147 86 105.00 101.67 435.00 190.00 190.84 441.56 350.56 2.147 87 104.47 101.49 438.16 190.00 189.59 453.86 362.50 2.147 88 104.47 101.49 435.53 190.00 189.11 448.30 356.99 2.147 89 105.00 101.67 435.53 190.00 190.72 443.48 352.40 2.147 90 104.47 101.49 435.00 190.00 188.69 448.41 356.99 2.147 91 105.00 101.67 437.63 190.00 190.50 450.16 358.83 2.147 92 104.47 101.49 435.00 190.00 188.96 447.39 356.07 2.147 93 103.95 101.32 436.05 190.00 187.93 453.01 361.58 2.147 94 105.00 .101.67 437.63 190.00 191.31 447.12 356.07 2.148 95 104.47 101.49 436.05 190.00 189.26 449.21 357.91 2.148 96 103.42 101.14 435.00 190.00 186.56 453.98 362.50 2.148 97 105.00 101.67 439.21 190.00 190.68 453.89 362.50 2.148 98 105.00 101.67 436.05 190.00 190.86 444.39 353.32 2.148 99 104.47 101.49 435.53 190.00 188.84 449.31 357.91 2.148 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 435.00 YR: 190.00 Centre: XC: 187.32 YC: 454.69 Radius: R: 362.50 Generated failure surface: (20 points) 105.00 101.67 123.33 97.89 141.84 95.06 160.47 93.19 179.16 92.29 197.88 92.35 216.58 93.38 235.19 95.37 253.68 98.32 271.99 102.22 290.07 107.06 307.88 112.83 325.37 119.51 342.49 127.08 359.19 135.53 375.44 144.82 391.18 154.95 406.39 165.67 421.01 177.57 435.00 190.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 44 slices). Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 17 63 -11.6 8.09 8.26 2 0.00 35.0 2204.29 42843.50 5336.1.7 1.10 2 113.09 73.04 -11.6 10.25 10.46 3 100.00 18.0 9302.94 55540.19 5795.82 1.05 3 123.33 65.64 -8.7 5.81 5.67 3 100.00 18.0 8442.51 31731.47 6175.03 1.04 4 129.14 90.52 -8.7 6.35 6.42 4 2000.00 . 20.0 11668.65 35060.98 6582.00 1.04 5 135.49 110.11 -8.7 6.35 6.42 4 2000.00 20.0 14216.54 35449.70 6856.92 1.04 6 141.84 194.71 -5.7 9.31 9.36 4 2000.00 20.0 25143.92 52219.70 7095.77 1.02 7 151.15 232.32 -5.7 9.31 9.36 4 2000.00 20.0 29984.89 52765.47 7426.56 1.02 8 160.47. 268.77 -2.8 9.35 9.36 4 2000.00 20.0 34648.96 53170.30 7655.22 1.01 9 169.82 302.14 --2.8 9.35 9.36 4 2000.00 20.0 38867.04 53434.46 7916.02 1.01 10 179.16 333.65 0.2 9.36 9.36 4 2000.00 20.0 42858.58 53557.55 8072.07 1.00 11 188.52 362.56 0.2 9.36 9.36 4 2000.00 20.0 46467.97 53539.36 8262.90 1.00 12 197.88 270.13 3.1 6.56 6.57 4 2000.00 20.0 34549.85 37486.88 8328.83 0.99 13 204.44. 282.10 3.1 6.56 6.57 4 2000.00 20.0 36008.12 37339.03 8413.78 0.99 14 211.00 249.28 3.1 5.58 5.58 4 2000.00 20.0 31796.07 31633.20 8497.69 0.99 15 216.58 433.10 6.1 9.31 9.36 4 2000.00 20.0 55239.46 52638.94 8500.62 0.99 16 225.88. 452.70 6.1 9.31 9.36 4 2000.00 20.0 57714.76 52057.19 8570.57 0.99 17 235.19 517.05 9.1 10.22 10.35 4 2000.00 20.0 65854.05 56721.46 8530.26 0.99 18 245.41 431.30 9.1 8.26 8.37 3 100.00 18.0 54858.85 45088.23 8680.59 0.99 19 253.68 421.25 12.0 7.89 8.07 3 100.00 18.0 53498.36 42714.93 8622.94 0.99 20 261.57 185.58 12.0 3.43 3.51 2 0.00 35.0 23556.23 18316.41 8477.00 0.95 21 265.00 382.01 12.0 6.99 7.14 2 0.00 35.0 48505.34 36777.28 8447.60 0.95 22 271.99 443.80 15.0. 8.01 8.30 2 0.00 35.0 56340.81 41785.46 8318.52 0.95 23 280.00 503.38 15.0 9.00 9.32 2 0.00 35.0 63975.02 45597.38 8216.79 0.95 24 289.00 531.70 17.6 9.44 9.90 2 D.00 35.0 67652.28 46815.43 8031.05 0.95 25 298.44 532.55 17.9 9.44 9.92 2 D.00 35.0 67757.86 45009.58 7839.06 0.95 26 307.88 491.87 20.9 8.74 9.36 2 0.00 35.0 62585.59 40594.17 7573.61 0.95 27 316.62 488.15 20.9 8.74 9.36 2 0.00 35.0 62120.84 38643.45 7341.60 0.95 28 325.37 472.06 23.9 8.56 9.36 2 0.00 35.0 60086.56 36562.39 7025.95 0.95 29 333.93 464.08 23.9 8.56 9.36 2 0.00 35.0 59087.96 34350.78 6738.73 0.95 30 342.49 503.59 26.8 9.51 10.66 2 0.00 35.0 64147.85 36267.57 6346.34 0.96 31 352.00 370.29 26.8 7.19 8.06 2 0.00 35.0 47192.05 25288.86 6069.70 0.96 32 359.19 130.16 29.8 2.57 2.97 2 0.00 35.0 .16594.51 8834.94 5892.31 0.97 33 361.77 405.72 29.8 8.23 9.49 6 150.00 22.0 51635.53 26429.48 5889.51 1.04 34 370.00 254.17 29.8 5.44 6.27 6 150.00 22.0 32252.09 15927.50 5558.11 1.04 35 375.44. 335.74 32.7 7.87 9.36 6 150.00 22.0 42469.81 21402.53 5012.54 1.06 36 383.31 295.88 32.7 7.87 9.36 6 150.00 22.0 37248.71 18445.79 4387.51 1.06 37 391.18 128.49 35.7 3.82 4.70 5 0.00 45.0 14134.18 8114.35 3201.94 0.92 38 395.00 100.13 35.7 3.21 3.96 2 0.00 35.0 12573.73 6211.97 3460.79 0.99 39 398.21 118.99 35.7 4.18 5.14 6 150.00 22.0 14911.07 7218.08 3264.08 1.08 40 402.39 102.21 35.7 4.00 4.92 2 0.00 35.0 12776.37 6010.43 2814.82 0.99 41 406.39 154.98 38.7 7,31 9.36 2 0.00 35.0 19372.12 8879.79 2293.07 1.01 42 413.70. 112.24 38.7 7.31 9.36 2 0.00 35.0 14030.13 5464.77 1639.06 1.01 43 421.01 66.74 41.6 7.24 9.69 2 0.00 35.0 8342.06 1944.02 935.23 1.03 44 428.25 20.26 41.6 6.75 9.03 2 0.00 35.0 2532.62 0.00 289.53 1.03 X -S Area: 12702.73 Path Length: 355.53 K -S Weight: 1515227.00 GALENA. 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 2 RD+150 EQ.gmf Processed: 05 Aug 2019 13:11:45 DATA: Analysis 1 - Case 2 - Rapid Draw Down EQ 150ft Setback Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 180.00 Profile: 2 (2 points) 0.00 166.00 Profile: 3 (2 points) 0.00 165.00 Profile: 4 (2 points) 0.00 138.00 Profile: 5 (2 points) 0.00 133.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 350.00 180.00 Profile: 9 (2 points) 353.00 180.00 Profile: 10 (2 points) 353.00 166.00 Profile: 11 (2 points) 353.00 165.00 Profile: 12 (2 points) 353.00 138.00 Profile: 13 (2 points) 353.00 133.00 Profile: 14 (2 points) 353.00 100.00 Profile: 15 (2 points) 350.00 97.00 Slope Surface (6 points) 0.00 100.00 525.00 180.00 Material beneath: 2 - Sand and Gravel 350.00 180.00 Material beneath: 6 - Clay 350.00 166.00 Material beneath: 2 - Sand and Gravel 350.00 165.00 Material beneath: 6 - Clay 350.00 138.00 Material beneath: 2 - Sand and Gravel 350.00 133.00 Material beneath: 3 - Weathered Bedrock 350.00 100.00 Material beneath: 4 - Stable Bedrock 350.00 97.00 Material beneath: 5 - Slurry Wall 353.00 180.00 Material beneath: 2 - Sand and Gravel 525.00 180.00 Material beneath: 6 - Clay 525.00 166.00 Material beneath: 2 - Sand and Gravel 525.00 165.00 Material beneath: 6 - Clay 525.00 138.00 Material beneath: 2 - Sand and Gravel 525.00 133.00 Material beneath: 3 - Weathered Bedrock 525.00 100.00 Material beneath: 4 - Stable Bedrock 525.00 97.00 Phreatic Surface (4 points) 0.00 Failure Surface 100.00 100.00 325.00 180.00 475.00 180.00 100.00 100.00 100.00 307.00 174.00 525.00 174.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: Centre: XC: 188.70 YC: 620.06 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints 180.00 525.00 500.00 170.00 Parameter descriptor: XL XR R Range of variation: 10.00 25.00 50.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 2 - Rapid Draw Down EQ 150ft Setback Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.671 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.43 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.78 475.00 180.00 188.70 620.06 525.00 1.430 <-- Critical Surface 2 105.00 101.78 475.00 180.00 188.92 618.99 523.98 1.433 3 105.00 101.78 475.00 180.00 189.15 617.92 522.96 1.435 4 105.00 101.78 475.00 180.00 189.38 616.85 521.94 1.438 5 105.00 101.78 475.00 180.00 189.60 615.78 520.92 1.440 6 105.00 101.78 475.00 180.00 189.83 614.71 519.90 1.442 7 104.47 101.59 475.00 180.00 188.36 619.85 525.00 1.443 8 105.00 101.78 475.00 180.00 190.06 613.64 518.88 1.445 9 104.47 101.59 475.00 180.00 188.59 618.77 523.98 1.445 10 105.00 101.78 475.00 180.00 190.28 612.56 517.86 1.447 11 104.47 101.59 475.00 180.00 188.82 617.70 522.96 1.447 12 105.00 101.78 476.32 179.47 190.40 619.79 525.00 1.448 13 104.47 101.59 475.00 180.00 189.04 616.63 521.94 1.450 14 105.00 101.78 475.00 180.00 190.51 611.49 516.84 1.450 15 105.00 101.78 476.32 179.47 190.62 618.71 523.98 1.450 16 104.47 101.59 475.00 180.00 169.27 615.56 520.92 1.452 17 105.00 101.78 475.00 180.00 190.74 610.42 515.82 1.452 19 105.00 101.78 476.32 179.47 190.84 617.64 522.96 1.453 19 104.47 101.59 475.00 180.00 189.50 614.49 519.90 1.454 20 105.00 101.78 475.00 180.00 190.96 609.35 514.80 1.454 21 103.95 101.40 475.00 180.00 188.03 619.63 525.00 1.455 22 104.47 101.59 475.00 180.00 189.72 613.42 518.88 1.457- 23 105.00 101.78 475.00 180.00 191.19 608.27 513.78 1.457 24 103.95 101.40 475.00 180.00 188.25 618.56 523.98 1.457 25 105.00 101.78 476.32 179.47 191.07 616.57 521.94 1.459 26 104.47 101.59 475.00 180.00 189.95 612.34 517.86 1.459 27 103.95 101.40 475.00 180.00 188.48 617.49 522.96 1.459 28 105.00 101.78 475.00 180.00 191.42 607.20 512.76 1.459 29 104.47 101.59 476.32 179.47 190.06 619.57 525.00 1.460 30 104.47 101.59 475.00 180.00 190.18 611.27 516.84 1.461 31 105.00 101.78 476.32 179.47 191.29 615.50 520.92 1.461 32 103.95 101.40 475.00 180.00 188.71 616.41 521.94 1.462 33 104.47 101.59 475.00 180.00 190.40 610.20 515.82 1.464 34 103.95 101.40 475.00 180.00 188.94 615.34 520.92 1.464 35 105.00 101.78 476.32 179.47 191.52 614.43 519.90 1.464 36 105.00 101.78 475.00 180.00 191.64 606.12 511.73 1.465 37 104.47 101.59 476.32 179.47 190.28 618.50 523.98 1.466 38 103.95 101.40 475.00 180.00 189.16 614.27 519.90 1.466 39 104.47 101.59 475.00 180.00 190.63 609.13 514.80 1.466 40 103.42 101.22 475.00 180.00 187.69 619.41 525.00 1.467 41 105.00 101.78 476.32 179.47 191.74 613.35 518.88 1.467 42 103.95 101.40 475.00 180.00 189.39 613.20 518.88 1.468 43 104.47 101.59 476.32 179.47 190.51 617.42 522.96 1.469 44 103.42 101.22 475.00 180.00 187.92 618.34 523.98 1.469 45 105.00 101.78 475.00 180.00 191.87 605.05 510.71 1.469 46 105.00 101.78 476.32 179.47 191.97 612.28 517.86 1.470 47 103.95 101.40 475.00 180.00 189.62 612.13 517.86 1.471 48 103.42 101.22 475.00 180.00 188.15 617.27 522.96 1.471 49 104.47 101.59 476.32 179.47 190.73 616.35 521.94 1.471 50 105.00 101.78 477.63 178.95 192.09 619.50 525.00 1.472 51 104.47 101.59 475.00 180.00 190.86 608.05 513.78 1.473 52 105.00 101.78 475.00 180.00 192.10 603.97 509.69 1.473 53 103.42 101.22 475.00 180.00 188.37 616.20 521.94 1.473 54 105.00 101.78 476.32 179.47 192.19 611.21 516.84 1.473 55 103.95 101.40 475.00 180.00 189.84 611.05 516.84 1.474 56 104.47 101.59 476.32 179.47 190.96 615.28 520.92 1.474 57 105.00 101.78 477.63 178.95 192.31 618.43 523.98 1.474 58 103.42 101.22 475.00 180.00 188.60 615.12 520.92 1.476 59 103.95 101.40 476.32 179.47 189.72 619.35 525.00 1.476 60 104.47 101.59 475.00 180.00 191.09 606.98 512.76 1.477 61 105.00 101.78 475.00 180.00 192.33 602.90 508.67 1.477 62 104.47 101.59 476.32 179.47 191.18 614.21 519.90 1.477 63 105.00 101.76 476.32 179.47 192.42 610.13 515.82 1.478 64 105.00 101.78 475.00 180.00 192.55 601.82 507.65 1.478 65 103.42 101.22 475.00 180.00 188.83 614.05 519.90 1.478 66 103.95 101.40 476.32 179.47 189.95 618.28 523.98 1.478 67 102.89 101.03 475.00 180.00 187.36 619.19 525.00 1.478 68 105.00 101.78 477.63 178.95 192.53 617.36 522.96 1.479 69 102.89 101.03 475.00 180.00 187.59 618.12 523.98 1.481 70 105.00 101.78 475.00 180.00 192.78 600.75 506.63 1.481 71 103.95 101.40 475.00 180.00 190.07 609.98 515.82 1.481 72 104.47 101.59 475.00 180.00 191.31 605.90 511.73 1.481 73 104.47 101.59 475.00 180.00 191.54 604.83 510.71 1.481 74 104.47 101.59 476.32 179.47 191.41 613.13 518.88 1.482 75 103.95 101.40 476.32 179.47 190.17 617.21 522.96 1.482 76 103.42 101.22 475.00 180.00 189.06 612.98 518.88 1.482 77 105.00 101.78 476.32 179.47 192.64 609.06 514.80 1.482 78 105.00 101.78 476.32 179.47 192.87 607.98 513.78 1.482 79 105.00 101.78 475.00 180.00 193.46 597.52 503.57 1.482 80 105.00 101.78 475.00 180.00 193.24 598.60 504.59 1.483 81 105.00 101.78 477.63 178.95 192.76 616.29 521.94 1.483 82 105.00 101.78 475.00 180.00 193.01 599.67 505.61 1.483 83 102.89 101.03 475.00 180.00 187.81 617.05 522.96 1.483 64 104.47 101.59 475.00 180.00 191.77 603.75 509.69 1.485 65 103.95 101.40 475.00 180.00 190.30 608.91 514.80 1.485 86 105.00 101.78 476.32 179.47 193.09 606.91 512.76 1.485 87 104.47 101.59 476.32 179.47 191.63 612.06 517.86 1.486 88 104.47 101.59 475.00 180.00 192.45 600.53 506.63 1.486 89 103.95 101.40 476.32 179.47 190.40 616.13 521.94 1.486 90 104.47 101.59 476.32 179.47 191.86 610.99 516.84 1.486 91 104.47 101.59 475.00 180.00 192.22 601.60 507.65 1.486 92 105.00 101.78 477.63 178.95 193.20 614.14 519.90 1.486 93 104.47 101.59 475.00 180.00 191.99 602.68 508.67 1.487 94 102.89 101.03 475.00 180.00 188.04 615.98 521.94 1.487 95 104.47 101.59 477.63 178.95 191.75 619.29 525.00 1.487 96 105.00 101.78 477.63 178.95 192.98 615.21 520.92 1.487 97 105.00 101.78 476.32 179.47 193.77 603.68 509.69 1.487 98 105.00 101:78 476.32 179.47 193.54 604.76 510.71 1.487 99 105.00 101.78 476.32 179.47 193.32 605.83 511.73 1.488 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: 180.00 Centre: XC: 188.70 YC: 620.06 Radius: R: 525.00 Generated failure surface: (20 points) 105.00 101.78 125.16 98.92 145.41 96.85 165.73 95.57 186.09 95.07 206.45 95.36 226.78 96.45 247.05 98.32 267.24 100.97 287.31 104.41 307.23 108.62 326.97 113.60 346.50 119.34 365.80 125.84 384.83 133.08 403.57 141.05 421.98 149.74 440.04 159.14 457.72 169.23 475.00 180.00 Slice Geometry. and Properties Critical Failure Surface (circle 1, 48 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 9.79 -8.1 6.28 6.34 2 0.00 35.0 1223.74 623.21 203.27 1.09 2 111.28 29.37 -8.1 6.28 6.34 2 0.00 35.0 3671.20 1861.97 608.60 1.09 3 117.55 61.87 -8.1 7.61 7.68 3 100.00 18.0 7799.62 3919.15 1055.12 1.04 4 125.16 114.40 -5.8 9.40 9.45 3 100.00 18.0 14534.28 7209.80 1576.39 1.03 5 134.56 154.83 -5.8 9.40 9.45 3 100.00 18.0 19732.11 9756.29 2137.45 1.03 6 143.95 228.32 -3.9 10.89 10.92 4 2000.00 20.0 29133.05 14345.73 2802.75 1.02 7 154.84 277.99 -3.6 10.89 10.91 4 2000.00 20.0 35461.75 17460.71 3380.57 1.02 8 165.73 302.67 -1.4 10.18 10.18 4 2000.00 20.0 38575.40 18978.85 3845.30 1.01 9 175.91 342.02 -1.4 10.18 10.18 4 2000.00 20.0 43534.53 21447.51 4335.34 1.01 10 186.09 246.69 0.8 6.72 6.72 4 2000.00 20.0 31360.92 15467.32 4645.90 1.00 11 192.81 265.84 0.8 6.82 6.82 4 2000.00 20.0 33710.68 16669.33 4927.30 1.00 12 199.63 281.69 0.8 6.82 6.82 4 2000.00 20.0 35599.02 17664.29 5204.64 1.00 13 206.45 447.51 3.0 10.17 10.18 4 2000.00 20.0 56394.27 28100.87 5449.95 0.99 14 216.61 478.75 3.0 10.17 10.18 4 2000.00 20.0 60211.13 30065.45 5824.19 0.99 15 226.78 296.66 5.3 6.00 6.03 4 2000.00 20.0 37247.69 18684.79 6022.98 0.98 16 232.78 365.00 5.3 7.14 7.17 3 100.00 18.0 45751.74 22990.62 6355.56 0.98 17 239.92 378.41 5.3 7.14 7.17 3 100.00 18.0 47352.61 23837.02 6578.55 0.98 18 247.05 349.97 7.5 6.40 6.45 3 100.00 18.0 43714.99 22142.87 6740.89 0.98 19 253.45 359.14 7.5 6.40 6.45 3 100.00 18.0 44775.58 22725.25 6905.19 0.98 20 259.85 425.98 7.5 7.39 7.45 2 0.00 35.0 53062.96 26957.08 6985.76 0.95 21 267.24 461.04 9.7 7.79 7.90 2 0.00 35.0 57434.84 29350.23 7111.97 0.94 22 275.03 472.22 9.7 7.79 7.90 2 0.00 35.0 58832.24 30065.39 7285.39 0.94 23 282.81 173.31 9.7 2.81 2.85 2 0.00 35.0 21586.44 11035.29 7401.11 0.94 24 285.62 104.38 9.7 1.68 1.71 2 0.00 35.0 12997.56 6646.74 7448.86 0.94 25 287.31 626.58 11.9 9.96 10.18 2 0.00 35.0 78023.67 40198.63 7490.12 0.93 26 297.27 640.88 11.9 9.96 10.18 2 0.00 35.0 79811.16 41123.09 7662.35 0.93 27 307.23 582.22 14.2 8.89 9.16 2 0.00 35.0 72511.10 36747.99 7703.75 0.92 28 316.11 590.38 14.2 8.89 9.16 2 0.00 35.0 73530.66 35466.11 7790.46 0.92 29 325.00 131.28 14.2 1.97 2.03 2 0.00 35.0 16350.47 7687.77 7804.47 0.92 30 326.97 634.51 16.4 9.77 10.18 2 0.00 35.0 79020.49 37457.15 7535.50 0.91 31 336.74 606.47 16.4 9.77 10.18 2 0.00 35.0 75515.22 35633.28 7199.23 0.91 32 346.50 210.04 18.6 3.50 3.69 2 D.OD 35.0 26149.56 12447.55 6897.83 0.91 33 350.00 176.93 18.6 3.00 3.17 5 0.00 45.0 19462.25 10463.97 5881.11 0.65 34 353.00 367.33 18.6 6.40 6.75 2 0.00 35.0 45724.14 21656.78 6587.10 0.91 35 359.40 353.54 18.6 6.40 6.75 2 0.00 35.0 44000.65 20748.97 6336.90 0.91 36 365.80 493.11 20.8 9.42 10.07 2 0.00 35.0 61355.91 29149.19 5947.62 0.90 37 375.22 459.39 20.8 9.42 10.07 2 0.00 35.0 57140.78 26897.91 5535.14 0.90 38 384.63 523.95 23.0 11.77 12.79 6 50.00 16.0 65287.34 30731.99 5285.17 1.00 39 396.40 289.88 23.0 7.16 7.78 2 0.00 35.0 36198.85 16743.56 4553.95 0.90 40 403.57 338.60 25.3 9.21 10.18 2 0.00 35.0 42278.47 19552.81 4090.81 0.90 41 412.77 298.59 25.3 9.21 10.18 2 0.00 35.0 37277.53 16792.16 3596.67 0.90 42 421.98 252.06 27.5 9.03 10.18 2 0.00 35.0 31462.00 13919.21 3054.07 0.90 43 431.01 209.62 27.5 9.03 10.18 2 0.00 35.0 26157.09 10933.67 2526.38 0.90 44 440.04 184.18 29.7 10.2/ 11.83 2 0.00 35.0 22971.74 8805.22 1910.50 0.90 45 450.31 25.41 29.7 1.75 2.02 6 50.00 16.0 3171.37 1070.04 1660.67 1.03 46 452.06 70.09 29.7 5.66 6.52 2 0.00 35.0 8761.42 2596.22 1296.98 0.90 47 457.72 64.17 31.9 7.65 9.02 2 0.00 35.0 8020.76 1342.02 837.81 0.90 46 465.37 28.88 31.9 9.63 11.34 2 0.00 35.0 3609.60 0.00 287.30 0.90 X -S Area: 14785.89 Path Length: 386.85 X -S Weight: 1847490.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 2 Full+150 EQ.gmf Processed: 05 Aug 2019 13:13:10 DATA: Analysis 1 - Case 2 - Full Reservoir EQ 150ft Setback Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 180.00 Profile: 2 (2 points) 0.00 166.00 Profile: 3 (2 points) 0.00 165.00 Profile: 4 (2 points) 0.00 138.00 Profile: 5 (2 points) 0.00 133.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 350.00 180.00 Profile: 9 (2 points) 353.00 180.00 Profile: 10 (2 points) 353.00 166.00 Profile: 11 (2 points) 353.00 165.00 Profile: 12 (2 points) 353.00 138.00 Profile: 13 (2 points) 353.00 133.00 Profile: 14 (2 points) 353.00 100.00 Profile: 15 (2 points) 350.00 97.00 Slope Surface (6 points) 0.00 100.00 525.00 180.00 Unit weight of water/medium above ground: 62.400 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 350.00 Material beneath: 353.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Material beneath: 525.00 Phreatic Surface (4 points) 0.00 174.00 Failure Surface 2 - Sand and Gravel 180.00 6 - Clay 166.00 2 - Sand and Gravel 165.00 6 -_ Clay 138.00 2 - Sand and Gravel 133.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 180.00 2 - Sand and Gravel 180.00 6 - Clay 166.00 2 - Sand and Gravel 165.00 6 - Clay 138.00 2 - Sand and Gravel 133.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 100.00 174.00 325.00 180.00 307.00 174.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: Centre: XC: 188.70 YC: 620.06 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints 475.00 180.00 525.00 174.00 180.00 525.00 500.00 170.00 Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 25.00 50.00 20 20 50 RESULTS: Analysis 1 - Case 2 - Full Reservoir EQ 150ft Setback Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.559 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.22 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.78 475.00 180.00 188.70 620.06 525.00 2.218 <-- Critical Surface 2 105.00 101.78 475.00 180.00 188.92 618.99 523.98 2.222 3 105.00 101.78 475.00 180.00 189.15 617.92 522.96 2.226 4 105.00 101.78 475.00 180.00 189.38 616.85 521.94 2.229 5 105.00 101.78 475.00 180.00 189.60 615.78 520.92 2.233 6 105.00 101.78 475.00 180.00 189.83 614.71 519.90 2.236 7 104.47 101.59 475.00 180.00 188.36 619.85 525.00 2.237 8 105.00 101.78 475.00 180.00 190.06 613.64 518.88 2.240 9 104.47 101.59 475.00 180.00 186.59 618.77 523.98 2.241 10 105.00 101.78 476.32 179.47 190.40 619.79 525.00 2.242 11 105.00 101.78 475.00 180.00 190.28 612.56 517.86 2.244 12 104.47 101.59 475.00 180.00 188.82 617.70 522.96 2.244 13 105.00 101.78 476.32 179.47 190.62 618.71 523.98 2.245 14 105.00 101.78 475.00 180.00 190.51 611.49 516.84 2.247 15 104.47 101.59 475.00 180.00 189.04 616.63 521.94 2.248 16 105.00 101.78 476.32 179.47 190.84 617.64 522.96 2.249 17 105.00 101.78 475.00 180.00 190.74 610.42 515.82 2.251 18 104.47 101.59 _475.00 180.00 189.27 615.56 520.92 2.251 19 105.00 101.78 475.00 180.00 190.96 609.35 514.80 2.254 20 104.47 101.59 475.00 180.00 189.50 614.49 519.90 2.255 21 103.95 101.40 475.00 180.00 188.03 619.63. 525.00 2.256 22 105.00 101.78 475.00 180.00 191.19 608.27 513.78 2.258 23 104.47 101.59 475.00 180.0O 189.72 613.42 518.88 2.258 24 105.00 101.78 476.32 179.47 191.07 616.57 521.94 2.258 25 103.95 101.40 475.00 180.00 188.25 618.56 523.98 2.259 26 104.47 101.59 476.32 179.47 190.06 619.57 525.00 2.260 27 105.00 101.78 475.00 180.00 191.42 607.20 512.76 2.261 28 104.47 101.59 475.00 180.00 189.95 612.34 517.86 2.261 29 105.00 101.78 476.32 179.47 191.29 615.50 520.92 2.262 30 103.95 101.40 475.00 180.00 188.48 617.49 522.96 2.262 31 104.47 101.59 475.00 180.00 190.18 611.27 516.84 2.265 32 103.95 101.40 475.00 180.00 188.71 616.41 521.94 2.266 33 105.00 101.78 476.32 179.47 191.52 614.43 519.90 2.266 34 104.47 101.59 475.00 180.00 190.40 610.20 515.82 2.268 35 103.95 101.40 475.00 180.00 188.94 615.34 520.92 2.269 36 104.47 101.59 476.32 179.47 190.28 618.50 523.98 2.269 37 105.00 101.78 476.32 179.47 191.74 613.35 518.88 2.270 38 105.00 101.78 475.00 180.00 191.64 606.12 511.73 2.270 39 104.47 101.59 475.00 180.00 190.63 609.13 514.80 2.272 40 103.95 101.40 475.00 180.00 189.16 614.27 519.90 2.272 41 104.47 101.59 476.32 179.47 190.51 617.42 522.96 2.273 42 103.42 101.22 475.00 180.00 187.69 619.41 525.00 2.274 43 105.00 101.78 476.32 179.47 191.97 612.28 517.86 2.274 44 105.00 101.78 477.63 178.95 192.09 619.50 525.00 2.274 45 105.00 101.78 475.00 180.00 191.87 605.05 510.71 2.276 46 103.95 101.40 475.00 180.00 189.39 613.20 518.88 2.276 47 104.47 101.59 476.32 179.47 190.73 616.35 521.94 2.277 48 103.42 101.22 475.00 180.00 18-.92 618.34 523.98 2.277 49 105.00 101.78 477.63 178.95 192.31 618.43 523.98 2.279 50 103.95 101.40 475.00 180.00 189.62 612.13 517.86 2.279 51 105.00 101.78 476.32 179.47 192.19 611.21 516.84 2.280 52 103.42 101.22 475.00 180.00 188.15 617.27 522.96 2.280 53 104.47 101.59 476.32 179.47 190.96 615.28 520.92 2.281 54 104.47 101.59 475.00 180.00 190.86 608.05 513.78 2.282 55 105.00 101.78 475.00 180.00 192.10 603.97 509.69 2.282 56 103.95 101.40 475.00 180.00 189.84 611.05 516.84 2.283 57 103.42 101.22 475.00 180.00 188.37 616.20 521.94 2.284 58 103.95 101.40 476.32 179.47 189.72 619.35 525.00 2.284 59 105.00 101.78 477.63 178.95 192.53 617.36 522.96 2.285 60 105.00 101.78 476.32 179.47 192.42 610.13 515.82 2.286 61 104.47 101.59 476.32 179.47 191.16 614.21 519.90 2.286 62 103.42 101.22 475.00 180.00 188.60 615.12 520.92 2.287 63 103.95 101.40 476.32 179.47 189.95 618.28 523.98 2.288 64 104.47 101.59 475.00 180.00 191.09 606.98 512.76 2.288 65 105.00 101.78 475.00 180.00 192.33 602.90 508.67 2.288 66 105.00 101.78 475.00 160.00 192.55 601.82 507.65 2.289 67 103.42 101.22 475.00 180.00 188.83 614.05 519.90 2.291 68 105.00 101.78 477.63 178.95 192.76 616.29 521.94 2.291 69 102.89 101.03 475.00 180.00 187.36 619.19 525.00 2.292 70 105.00 101.78 476.32 179.47 192.87 607.98 513.78 2.292 71 105.00 101.78 476.32 179.47 192.64 609.06 514.80 2.292 72 104.47 101.59 476.32 179.47 191.41 613.13 518.88 2.292 73 103.95 101.40 476.32 179.47 190.17 617.21 522.96 2.293 74 105.00 101.78 475.00 180.00 192.78 600.75 506.63 2.293 75 104.47 101.59 475.00 180.00 191.31 605.90 511.73 2.294 76 103.95 101.40 475.00 180.00 190.07 609.98 515.82 2.295 77 104.47 101.59 475.00 180.00 191.54 604.83 510.71 2.295 78 102.89 101.03 475.00 180.00 187.59 618.12 523.98 2.295 79 105.00 101.78 475.00 180.00 193.46 597.52 503.57 2.295 80 105.00 101.78 475.00 180.00 193.24 598.60 504.59 2.296 81 103.42 101.22 475.00 180.00 189.06 612.98 518.88 2.296 82 105.00 101.78 475.00 180.00 193.01 599.67 505.61 2.296 83 105.00 101.78 477.63 178.95 193.20 614.14 519.90 2.296 84 105.00 101.78 476.32 179.47 193.09 606.91 512.76 2.297 85 105.00 101.78 477.63 178.95 192.98 615.21 520.92 2.297 86 104.47 101.59 477.63 178.95 191.75 619.29 525.00 2.298 87 104.47 101.59 476.32 179.47 191.86 610.99 516.84 2.298 88 102.89 101.03 475.00 180.00 187.81 617.05 522.96 2.298 89 104.47 101.59 476.32 179.47 191.63 612.06 517.86 2.298 90 103.95 101.40 476.32 179.47 190.40 616.13 521.94 2.299 91 104.47 101.59 475.00 180.00 191.77 603.75 509.69 2.299 92 105.00 101.78 476.32 179.47 193.77 603.68 509.69 2.299 93 105.00 101.78 476.32 179.47 193.54 604.76 510.71 2.300 94 105.00 101.78 476.32 179.47 193.32 605.83 511.73 2.301 95 103.95 101.40 475.00 180.00 190.30 608.91 514.80 2.301 96 104.47 101.59 475.00 180.00 192.45 600.53 506.63 2.301 97 105.00 101.78 477.63 178.95 193.42 613.07 518.88 2.301 98 104.47 101.59 475.00 180.00 192.22 601.60 507.65 2.302 99 104.47 101.59 475.00 180.00 191.99 602.68 508.67 2.302 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.78 XR: 475.00 YR: 180.00 Centre: XC: 188.70 YC: 620.06 Radius: R: 525.00 Generated failure surface: (20 points) 105.00 101.78 125.16 98.92 145.41 96.85 165.73 95.57 186.09 95.07 206.45 95.36 226.78 96.45 247.05 98.32 267.24 100.97 287.31 104.41 307.23 108.62 326.97 113.60 346.50 119.34 365.80 125.84 384.83 133.08 403.57 141.05 421.98 149.74 440.04 159.14 457.72 169.23 475.00 180.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, _48 slices) Slice X -S Base - PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 9.79 -8.1 6.28 6.34 2 0.00 35.0 1223.74 28738.90 4636.63 1.06 2 111.28 29.37 -8.1 6.28 6.34 2 0.00 35.0 3671.20 29090.41 4696.56 1.06 3 117.55 61.87 -8.1 7.61 7.68 3 100.00 18.0 7799.62 35743.04 5186.39 1.03 4 125.16 114.40 -5.8 9.40 9.45 3 100.00 18.0 14534.28 44535.36 5518.54 1.02 5 134.56 154.83 -5.8 9.40 9.45 3 100.00 18.0 19732.11 45101.85 5867.54 1.02 6 143.95 228.32 -3.9 10.89 10.92 4 2000.00 20.0 29133.05 52722.98 6274.66 1.01 7 154.84 277.99 -3.6 10.89 10.91 4 2000.00 20.0 35461.75 53173.71 6611.23 1.01 8 165.73 302.67 -1.4 10.18 10.18 4 2000.00 20.0 38575.40 49903.61 6866.49 1.00 9 175.91 342.02 -1.4 10.18 10.18 4 2000.00 20.0 43534.53 50061.12 7128.97 1.00 10 186.09 246.69 0.8 6.72 6.72 4 2000.00 20.0 31360.92 33101.35 7278.31 1.00 11 192.81 265.84 0.8 6.82 6.82 4 2000.00 20.0 33710.68 33517.41 7408.86 1.00 12 199.63 281.69 0.8 6.82 6.82 4 2000.00 20.0 35599.02 33475.57 7534.30 1.00 13 206.45 447.51 3.0 10.17 10.18 4 2000.00 20.0 56394.27 49781.39 7618.73 0.99 14 216.61 478.75 3.0 10.17 10.18 4 2000.00 20.0 60211.13 49437.39 7767.06 0.99 15 226.78 296.66 5.3 6.00 6.03 4 2000.00 20.0 37247.69 29068.99 7814.77 0.99 16 232.78 365.00 5.3 7.14 7.17 3 100.00 18.0 45751.74 34284.66 7956.96 0.99 17 239.92 378.41 5.3 7.14 7.17 3 100.00 18.0 47352.61 33990.36 8021.57 0.99 18 247.05 349.97 7.5 6.40 6.45 3 100.00 18.0 43714.99 30313.73 8044.48 0.99 19 253.45 359.14 7.5 6.40 6.45 3 100.00 18.0 44775.58 29974.65 8066.80 0.99 20 259.85 425.98 7.5 7.39 7.45 2 0.00 35.0 53062.96 34179.64 8029.14 0.97 21 267.24 461.04 9.7 7.79 7.90 2 0.00 35.0 57434.84 35670.96 8008.10 0.96 22 275.03 472.22 9.7 7.79 7.90 2 0.00 35.0 58832.24 35013.94 8010.17 0.96 23 282.81 173.31 9.7 2.81 2.85 2 0.00 35.0 21586.44 12485.36 8009.20 0.96 24 285.62 104.38 9.7 1.68 1.71 2 0.00 35.0 12997.56 7428.69 8007.43 0.96 25 287.31 626.58 11.9 9.96 10.18 2 0.00 35.0 78023.67 43539.90 7940.48 0.96 26 297.27 640.88 11.9 9.96 10.18 2 0.00 35.0 79811.16 42202.27 7893.33 0.96 27 307.23 582.22 14.2 8.89 9.16 2 0.00 35.0 72511.10 36747.99 7854.00 0.96 28 316.11 590.38 14.2 8.89 9.16 2 0.00 35.0 73530.66 35466.11 7949.92 0.96 29 325.00 131.28 14.2 1.97 2.03 2 0.00 35.0 16350.47 7687.77 7967.98 0.96 30 326.97 634.51 16.4 9.77 10.18 2 0.00 35.0 79020.49 37457.15 7716.06 0.95 31 336.74 606.47 16.4 9.77 10.18 2 0.00 35.0 75515.22 35633.28 7372.43 0.95 32 346.50 210.04 18.6 3.50 3.69 2 0.00 35.0 26149.56 12447.55 7084.47 0.95 33 350.00 176.93 18.6 3.00 3.17 5 0.00 45.0 19462.25 10463.97 6068.21 0.92 34 353.00 367.33 18.6 6.40 6.75 2 0.00 35.0 45724.14 21656.78 6766.12 0.95 35 359.40 353.54 18.6 6.40 6.75 2 0.00 35.0 44000.65 20748.97 6509.78 0.95 36 365.80 493.11 20.8 9.42 10.07 2 0.00 35.0 61355.91 29149.19 6128.15 0.96 37 375.22 459.39 20.8 9.42 10.07 2 0.00 35.0 57140.78 26897.91 5704.50 0.96 38 384.63 523.95 23.0 11.77 12.79 6 50.00 16.0 65287.34 30731.99 5372.90 1.03 39 396.40 289.88 23.0 7.16 7.78 2 0.00 35.0 36198.85 16743.56 4710.81 0.96 40 403.57 338.60 25.3 9.21 10.18 2 0.00 35.0 42278 47 19552.81 4246.00 0.96 41 412.77 298.59 25.3 9.21 10.18 2 0.00 35.0 37277.53 16792.16 3738.06 0.96 42 421.98 252.06 27.5 9.03 10.18 2 0.00 35.0 31462.00 13919.21 3185.30 0.97 43 431.01 209.62 27.5 9.03 10.18 2 0.00 35.0 26157.09 10933.87 2639.37 0.97 44 440.04 184.18 29.7 10.27 11.83 2 0.00 35.0 22971.74 8805.22 2008.65 0.98 45 450.31 25.41 29.7 1.75 2.02 6 50.00 16.0 3171.37 1070.04 1710.10 1.07 46 452.D6 70.09 29.7 5.66 6.52 2 0.00 35.0 8761.42 2596.22 1372.62 0.98 47 457.72 64.17 31.9 7.65 9.02 2 0.00 35.0 8020.76 1342.02 900.27 0.98 48 465.37 28.88 31.9 9.63 11.34 2 0.00 35.0 3609.60 0.00 313.34 0.98 X -S Area: 14785.89 Path Length: 386.85 X -S Weight: 1847490.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J E T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 3 RD+150 EQ.gmf Processed: 05 Aug 2019 14:04:24 DATA: Analysis 1 - Case 3 - Rapid Draw Down EQ 150ft Setback Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) 0.00 160.00 Profile: 2 (2 points) 0.00 100.00 Profile: 3 (2 points) 0.00 97.00 .Profile: 4 (2 points) 305.00 160.00 Profile:- 5 (2 points) 308.00 160.00 Profile: 6 (2 points) 308.00 100.00 Profile: 7 (2 points) 305.00 97.00 Slope Surface (7 points) 0.00 100.00 565.00 160.00 Unit weight of water/medium above ground: 62.400 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 308.00 Material beneath: 580.00 Material beneath: 580.00 Material beneath: 580.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 — Slurry Wall 160.00 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 580.00 160.00 100.00 100.00 280.00 160.00 250.00 150.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: Centre: XC: 198.31 YC: 516.30 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 67.50 20 R 50.00 50 RESULTS: Analysis 1 - Case 3 - Rapid Draw Down EQ 150ft Setback Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: Analysis Summary 2.312 430.00 160.00 580.00 150.00 160.00 425.00 497.50 150.00 There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.07 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 430.00 160.00 196.31 516.30 425.00 2.065 <-- Critical Surface 2 105.00 101.67 430.00 160.00 198.51 515.21 423.98 2.067 3 105.00 101.67 430.00 160.00 198.71 514.12 422.96 2.068 4 105.00 101.67 430.00 160.00 198.90 513.02 421.94 2.069 5 105.00 101.67 430.00 160.00 199.10 511.93 420.92 2.071 6 104.47 101.49 430.00 160.00 197.98 516.08 425.00 2.071 7 105.00 101.67 430.00 160.00 199.29 510.84 419.90 2.072 8 104.47 101.49 430.00 160.00 198.17 514.99 423.98 2.072 9 105.00 101.67 430.00 160.00 199.49 509.75 418.88 2.073 10 104.47 101.49 430.00 160.00 198.37 513.90 422.96 2.074 11 105.00 101.67 430.00 160.00 199.69 508.65 417.86 2.075 12 104.47 101.49 430.00 160.00 198.57 512.80 421.94 2.075 13 105.00 101.67 430.00 160.00 199.88 507.56 416.84 2.076 14 104.47 101.49 430.00 160.00 198.76 511.71 420.92 2.076 15 103.95 101.32 430.00 160.00 197.64 515.86 425.00 2.077 16 105.00 101.67 430.00 160.00 200.08 506.47 415.62 2.078 17 104.47 101.49 430.00 160.00 198.96 510.62 419.90 2.078 18 103.95 101.32 430.00 160.00 197.84 514.77 423.98 2.078 19 105.00 101.67 430.00 160.00 200.27 505.37 414.80 2.079 20 104.47 101.49 430.00 160.00 199.16 509.53 418.88 2.079 21 103.95 101.32 430.00 160.00 198.04 513.68 422.96 2.079 22 105.00 101.67 430.00 160.00 200.47 504.28 413.78 2.080 23 104.47 101.49 430.00 160.00 199.35 508.43 417.86 2.080 24 103.95 101.32 430.00 160.00 198.23 512.59 421.94 2.081 25 105.00 101.67 430.00 160.00 200.67 503.18 412.76 2.082 26 104.47 101.49 430.00 160.00 199.55 507.34 416.84 2.082 27 103.95 101.32 430.00 160.00 198.43 511.49 420.92 2.082 28 103.42 101.14 430.00 160.00 197.31 515.64 425.00 2.083 29 104.47 101.49 430.00 160.00 199.75 506.25 415.82 2.083 30 105.00 101.67 430.00 160.00 200.86 502.09 411.73 2.083 31 103.95 101.32 430.00 160.00 198.63 510.40 419.90 2.083 32 103.42 101.14 430.00 160.00 197.51 514.55 423.98 2.084 33 104.47 101.49 430.00 160.00 199.94 505.15 414.80 2.084 34 105.00 101.67 430.00 160.00 201.06 500.99 410.71 2.084 35 103.95 101.32 430.00 160.00 196.82 509.31 418.88 2.085 36 103.42 101.14 430.00 160.00 197.70 513.46 422.96 2.085 37 104.47 101.49 430.00 160.00 200.14 504_06 413,78 2.086 38 105.00 101.67 430.00 160.00 201.26 499.89 409.69 2.086 39 103.95 101.32 430.00 160.00 199.02 508.21 417.86 2.086 40 103.42 101.14 430.00 160.00 197.90 512.37 421.94 2.086 41 104.47 101.49 430.00 160.00 200.34 502.96 412.76 2.087 42 103.95 101.32 430.00 160.00 199.22 507.12 416.84 2.087 43 105.00 101.67 430.00 160.00 201.46 498.79 408.67 2.087 44 103.42 101.14 430.00 160.00 198.10 511.27 420.92 2.088 45 104.47 101.49 430.00 160.00 200.53 501.86 411.73 2.088 46 102.89 100.96 430.00 160.00 196.97 515.42 425.00 2.088 47 103.95 101.32 430.00 160.00 199.41 506.02 415.82 2.088 48 105.00 101.67 430.00 160.00 201.65 497.70 407.65 2.089 49 103.42 101.14 430.00 160.00 198.29 510.18 419.90 2.089 50 102.89 100.96 430.00 160.00 197.17 514.33 423.98 2.089 51 104.47 101.49 430.00 160.00 200.73 500.77 410.71 2.090 52 103.95 101.32 430.00 160.00 199.61 504.93 414.80 2.090 53 105.00 101.67 430.00 160.00 201.85 496.60 406.63 2.090 54 103.42 101.14 430.00 160.00 198.49 509.09 418.88 2.090 55 102.89 100.96 430.00 160.00 197.37 513.24 422.96 2.091 56 103.95 101.32 430.00 160.00 199.81 503.83 413.78 2.091 57 104.47 101.49 430.00 160.00 200.93 499.67 409.69 2.091 58 103.42 101.14 430.00 160.00 198.69 507.99 417.86 2.091 59 105.00 101.67 430.00 160.00 202.05 495.50 405.61 2.091 60 102.89 100.96 430.00 160.00 197.57 512.15 421.94 2.092 61 103.95 101.32 430.00 160.00 200.01 502.74 412.76 2.092 62 104.47 101.49 430.00 160.00 201.13 498.57 408.67 2.092 63 103.42 101.14 430.00 160.00 198.88 506.90 416.84 2.092 64 105.00 101.67 430.00 160.00 202.24 494.40 404.59 2.093 65 102.89 100.96 430.00 160.00 197.76 511.05 420.92 2.093 66 103.95 101.32 430.00 160.00 200.20 501.64 411.73 2.093 67 104.47 101.49 430.00 160.00 201.32 497.47 407.65 2.094 68 103.42 101.14 430.00 160.00 199.08 505.80 415.82 2.094 69 105.00 101.67 430.00 160.00 202.44 493.30 403.57 2.094 70 102.89 100.96 430.00 160.00 197.96 509.96 419.90 2.094 71 105.00 101.67 430.00 160.00 203.43 487.79 398.47 2.094 72 103.95 101.32 430.00 160.00 200.40 500.54 410.71 2.095 73 103.42 101.14 430.00 160.00 199.28 504.71 414.80 2.095 74 104.47 101.49 430.00 160.00 201.52 496.37 406.63 2.095 75 102.89 100.96 430.00 160.00 198.16 508.87 418.88 2.095 76 105.00 101.67 430.00 160.00 202.64 492.20 402.55 2.095 77 105.00 101.67 433.55 159.47 201.54 515.56 425.00 2.096 78 103.95 101.32 430.00 160.00 200.60 499.45 409.69 2.096 79 103.42 101.14 430.00 160.00 199.48 503.61. 413.78 2.096 80 105.00 101.67 430.00 160.00 203.23 488.89 399.49 2.096 81 104.47 101.49 430.00 160.00 201.72 495.27 405.61 2.096 62 102.89 100.96 430.00 160.00 198.36 507.77 417.86 2.096 83 105.00 101.67 430.00 160.00 202.84 491.10 401.53 2.097 84 105.00 101.67 433.55 159.47 201.73 514.46 423.98 2.097 85 103.95 101.32 430.00 160.00 200.80 498.35 408.67 2.097 86 103.42 101.14 430.00 160.00 199.67 502.52 412.76 2.097 87 104.47 101.49 430.00 160.00 202.71 489.77 400.51 2.097 88 104.47 101.49 430.00 160.00 201.92 494.17 404.59 2.098 89 105.00 101.67 430.00 160.00 203.04 489.99 400.51 2.098 90 103.42 101.14 430.00 160.00 199.87 501.42 411.73 2.099 91 103.95 101.32 430.00 160.00 200.99 497.25 407.65 2.099 92 105.00 101.67 433.55 159.47 201.92 513.37 422.96 2.099 93 104.47 101.49 430.00 160.00 202.11 493.07 403.57 2.099 94 101.84 100.61 430.00 160.00 196.31 514.98 425.00 2.099 95 104.47 101.49 430.00 160.00 202.51 490.87 401.53 2.099 96 103.42 101.14 430.00 160.00 200.07 500.32 410.71 2.100 97 103.95 101.32 430.00 160.00 201.19 496.15 406.63 2.100 98 105.00 101.67 433.55 159.47 202.12 512.28 421.94 2.100 99 102.37 100.79 430.00 160.00 196.64 515.20 425.00 2.100 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: 160.00 Centre: XC: 198.31 YC: 516.30 Radius: R: 425.00 Generated failure surface: (20 points) 105.00 101.67 122.49 98.11 140.11 95.30 157.84 93.23 175.64 91.90 193.48 91.32 211.32 91.50 229.15 92.42 246.91 94.08 264.60 96.50 282.16 99.65 299.58 103.54 316.82 108.15 333.85 113.49 350.64 119.53 367.17 126.28 383.39 133.71 399.29 141.82 414.84 150.59 430.00 160.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width L ngth Matl Cohesion Phi Weight Force Stress Factor 1 105.00 18.06 -11.5 8.21 .37 2 0.00 35.0 2257.68 1150.15 285.32 1.10 2 113.21 63.96 -11.5 9.28 .47 3 100.00 18.0 8138.07 4074.13 901.50 1.05 3 122.49 77.48 -9.1 6.98 .07 3 100.00 18.0 9957.89 4896.09 1453.76 1.04 4 129.47 164.44 -9.1 10.65 1 .78 4 2000.00 20.0 21210.48 10390.96 2181.44 1.04 5 140.11 177.85 -6.7 8.86 .92 4 2000.00 20.0 22971.71 11173.65 2735.60 1.03 6 148.98 213.22 -6.7 8.86 .92 4 2000.00 20.0 27539.72 13395.68 3256.60 1.03 7 157.84 247.98 -4.3 8.90 .92 4 2000.00 20.0 32009.56 15517.15 3694.91 1.02 8 166.74 280.28 -4.3 8.90 .92 4 2000.00 20.0 36141.21 17538.13 4162.36 1.02 9 175.64 311.64 -1.9 6.92 .92 4 2000.00 20.0 40131.63 19456.71 4544.53 1.01 10 184.56 340.73 -1.9 8.92 .92 4 2000.00 20.0 43809.34 21272.99 4958.09 1.01 11 193.48 368.34 0.6 8.92 .92 4 2000.00 20.0 47275.48 22985.65 5284.15 1.00 12 202.40 394.12 0.6 8.92 .92 4 2000.00 20.0 50485.21 24594.14 5643.55 1.00 13 211.32 417.66 3.0 8.91 .92 4 2000.00 z0.0 53387.86 26096.98 5913.58 0.99 14 220.23 440.03 3.0 8.91 .92 4 2002.00 20.0 56118.36 27494.67 6218.63 0.99 15 229.15 459.29 5.4 8.88 .92 4 2000.00 20.0 58430.40 28785.87 6432.75 0.99 16 238.03 478.19 5.4 8.88 .92 4 2000.00 20.0 60674.46 29970.47 6683.38 0.99 17 246.91 170.32 7.8 3.09 .11 4 2000.00 20.0 21572.08 10726.61 6777.90 0.99 18 250.00 410.28 7.8 7.30 .37 4 2000.00 20.0 51868.36 25279.42 6691.34 0.99 19 257.30 420.77 7.8 7.30 .37 4 2000.00 20.0 53063.12 24821.71 7049.74 0.99 20 264.60 164.36 10.2 2.81 .85 4 2000.00 20.0 20690.42 9471.13 7082.41 0.98 21 267.40 373.42 10.2 6.30 .40 3 100.00 18.0 46923.22 20938.35 7326.44 0.99 22 273.70 379.53 10.2 6.30 .40 3 100.00 18.0 47572.25 20466.69 7424.71 0.99 23 260.00 130.99 10.2 2.16 .20 3 100.00 18.0 16393.21 6933.04 7446.89 0.99 24 282.16 94.51 12.6 1.57 .61 3 100.00 18.0 11818.45 5038.50 7365.21 0.99 25 283.73 468.43 12.6 7.92 .12 2 0.00 35.0 58553.30 24882.84 7085.22 0.95 26 291.66 454.41 12.6 7.92 .12 2 0.00 35.0 56801.55 23986.86 6871.94 0.95 27 299.58 301.99 15.0 5.42 .61 2 0.00 35.0 37748.28 16007.68 6624.91 0.95 26 305.00 163.83 15.0 3.00 .11 5 0.00 45.0 18021.55 8645.24 5637.26 0.92 29 306.00 467.81 15.0 8.82 .13 2 0.00 35.0 58475.86 24520.5O 6300.36 0.95 30 316.82 430.15 17.4 8.52 .92 2 0.00 35.0 53768.17 22559.04 5950.66 0.95 31 325.34 407.43 17.4 8.52 .92 2 0.00 35.0 50928.68 21073.64 5633.24 0.95 32 333.85 377.83 19.8 8.40 .92 2 0.00 35.0 47228.25 19489.49 5250.74 0.95 33 342.25 352.45 19.8 8.40 .92 2 0.00 35.0 44055.98 17806.36 4693.48 0.95 34 350.64 320.39 22.2 8.26 .92 2 0.00 35.0 40048.45 16025.60 4476.50 0.95 35 356.91 292.52 22.2 8.26 .92 2 0.00 35.0 36565.41 14147.59 4080.59 0.95 36 367.17 258.50 24.6 8.11 .92 2 0.00 35.0 32312.05 12173.91 3630.83 0.95 37 375.28 228.35 24.6 8.11 .92 2 0.00 35.0 28543.30 10104.50 3197.55 0.95 38 383.39 192.87 27.0 7.95 .92 2 0.00 35.0 24108.60 7941.18 2716.81 0.96 39 391.34 160.64 27.0 7.95 .92 2 0.00 35.0 20080.37 5683.91 2247.49 0.96 40 399.29 117.01 29.4 7.25 .33 2 0.00 35.0 14626.21 3187.54 1754.60 0.96 41 406.54 87.35 29.4 7.25 .33 2 0.00 35.0 10918.49 1062.51 1284.41 0.96 42 413.80 61.12 31.5 8.10 .51 2 0.00 35.0 7640.43 0.00 780.66 0.97 43 421.90 20.37 31.8 8.10 .54 2 0.00 35.0 2546.81 0.00 259.69 0.97 X -S Area: 11760.95 Path Length: 339.09 X -S Weight: 1483411.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 3 Full+150 EQ.gmf Processed: 05 Aug 2019 14:05:58 DATA: Analysis 1 - Case 3 - Full Reservoir EQ 150ft Setback Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) 0.00 160.00 Profile: 2 (2 points) 0.00 100.00 Profile: 3 (2 points) 0.00 97.00 Profile: 4 (2 points) -305.00 160.00 Profile: 5 (2 points) 308.00 160.00 Profile: 6 (2 points) 308.00 100.00 Profile: 7 (2 points) 305.00 97.00 Slope Surface (7 points) 0.00 100.00 565.00 160.00 - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 305.00 Material beneath: 308.00 Material beneath: 580.00 Material beneath: 580.00 Material beneath: 580.00 Phreatic Surface (4 points) 0.00 150.00 Failure Surface 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 160.00 2 - Sand and Gravel 160.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 580.00 160.00 100.00 150.00 280.00 160.00 250.00 150.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: Centre: XC: 198.31 YC: 516.30 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 67.50 20 R 50.00 50 RESULTS: Analysis 1 - Case 3 - Full Reservoir EQ 150ft Setback Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: Analysis Summary 3.143 430.00 160.00 580.00 150.00 160.00 425.00 497.50 150.00 There were: 20001 successful analyses from a•total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.84 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 430.00 160.00 198.31 516.30 425.00 2.844 <-- Critical Surface 2 105.00 101.67 430.00 160.00 198.51 515.21 423.98 2.846 3 105.00 101.67 430.00 160.00 198.71 514.12 422.96 2.848 4 105.00 101.67 430.00 160.00 198.90 513.02 421.94 2.850 5 105.00 101.67 430.00 160.00 199.10 511.93 420.92 2.852 6 105.00 101.67 430.00 160.00 199.29 510.84 419.90 2.853 7 104.47 101.49 430.00 160.00 197.98 516.08 425.00 2.854 8 105.00 101.67 430.00 160.00 199.49 509.75 418.88 2.855 9 104.47 101.49 430.00 160.00 198.17 514.99 423.98 2.856 10 105.00 101.67 430.00 160.00 199.69 508.65 417.86 2.857 11 104.47 101.49 430.00 160.00 198.37 513.90 422.96 2.857 12 105.00 101.67 430.00 160.00 199.88 507.56 416.84 2.859 13 104.47 101.49 430.00 160.00 198.57 512.80 421.94 2.859 14 105.00 101.67 430.00 160.00 200.08 506.47 415.82 2.861 15 104.47 101.49 430.00 160.00 196.76 511.71 420.92 2.861 16 104.47 101.49 430.00 160.00 198.96 510.62 419.90 2.863 17 105.00 101.67 430.00 160.00 200.27 505.37 414.80 2.863 18 103.95 101.32 430.00 160.00 197.64 515.86 425.00 2.863 19 104.47 101.49 430.00 160.00 199.16 509.53 418.88 2.864 20 105.00 101.67 430.00 160.00 200.47 504.28 413.78 2.865 21 103.95 101.32 430.00 160.00 197.84 514.77 423.98 2.865 22 104.47 101.49 430.00 160.00 199.35 508.43 417.86 2.866 23 105.00 101.67 430.00 160.00 200.67 503.18 412.76 2.866 24 103.95 101.32 430.00 160.00 198.04 513.68 422.96 2.867 25 104.47 101.49 430.00 160.00 199.55 507.34 416.84 2.868 26 105.00 101.67 430.00 160.00 200.86 502.09 411.73 2.868 27 103.95 101.32 430.00 160.00 198.23 512.59 421.94 2.868 28 104.47 101.49 430.00 160.00 199.75 506.25 415.82 2.870 29 103.95 101.32 430.00 160.00 198.43 511.49 420.92 2.870 30 105.00 101.67 430.00 160.00 201.06 500.99 410.71 2.870 31 104.47 101.49 430.00 160.00 199.94 505.15 414.80 2.872 32 103.95 101.32 430.00 160.0D 198.63 510.40 419.90 2.872 33 105.00 101.67 430.00 160.00 201.26 499.89 409.69 2.872 34 103.42 101.14 430.00 160.00 197.31 515.64 425.00 2.873 35 104.47 101.49 430.00 160.00 200.14 504.06 413.78 2.673 36 103.95 101.32 430.00 160.00 198.82 509.31 418.88 2.874 37 105.00 101.67 430.00 160.00 201.46 498.79 408.67 2.874. 38 103.42 101.14 430.00 160.00 197.51 514.55 423.98 2.874 39 104.47 101.49 430.00 160.00 200.34 502.96 412.76 2.875 40 103.95 101.32 430.00 160.00 199.02 508.21 417.86 2.875 41 105.00 101.67 430.00 160.00 201.65 497.70 407.65 2_676 42 103.42 101.14 430.00 160.00 197.70 513.46 422.96 2.876 43 103.95 101.32 430.00 160.00 199.22 507.12 416.84 2.877 44 104.47 101.49 430.00 160.00 200.53 501.86 411.73 2.877 45 103.42 101.14 430.00 160.00 197.90 512.37 421.94 2.878 46 105.00 101.67 430.00 160.00 201.85 496.60 406.63 2.878 47 105.00 101.67 433.55 159.47 201.54 515.56 425.00 2.879 48 103.95 101.32 430.00 160.00 199.41 506.02 415.82 2.879 49 104.47 101.49 430.00 160.00 200.73 500.77 410.71 2.879 50 103.42 101.14 430.00 160.00 196.10 511.27 420.92 2.879 51 105.00 101.67 430.00 160.00 202.05 495.50 405.61 2.880 52 103.95 101.32 430.00 160.00 199.61 504.93 414.80 2.880 53 105.00 101.67 433.55 159.47 201.73 514.46 423.98 2.880 54 104.47 101.49 430.00 160.00 200.93 499.67 409.69 2.881 55 103.42 101.14 430.00 160.00 198.29 510.18 419.90 2.881 56 105.00 101.67 430.00 160.00 202.24 494.40 404.59 2.881 57 102.89 100.96 430.00 160.00 196.97 515.42 425.00 2.882 58 103.95 101.32 430.00 160.00 199.81 503.83 413.78 2.882 59 105.00 101.67 433.55 159.47 201.92 513.37 422.96 2.882 60 104.47 101.49 430.00 160.00 201.13 496.57 408.67 2.882 61 103.42 101.14 430.00 160.00 198.49 509.09 418.88 2.882 62 102.89 100.96 430.00 160.00 197.17 514.33 423.98 2.883 63 105.00 101.67 430.00 160.00 202.44 493.30 403.57 2.883 64 105.00 101.67 430.00 160.00 203.43 487.79 398.47 2.884 65 103.95 101.32 430.00 160.00 200.01 502.74 412.76 2.884 66 105.00 101.67 433.55 159.47 202.12 512.28 421.94 2.884 67 103.42 101.14 430.00 160.00 198.69 507.99 417.86 2.884 68 104.47 101.49 430.00 160.00 201.32 497.47 407.65 2.884 69 102.89 100.96 430.00 160.00 197.37 513.24 422.96 2.885 70 105.00 101.67 430.00 160.00 202.64 492.20 402.55 2.885 71 103.95 101.32 430.00 160.00 200.20 501.64 411.73 2.886 72 103.42 101.14 430.00 160.00 198.88 506.90 416.84 2.886 73 105.00 101.67 433.55 159.47 202.31 511.18 420.92 2.886 74 104.47 101.49 430.00 160.00 201.52 496.37 406.63 2.886 75 105.00 101.67 430.00 160.00 203.23 488.89 399.49 2.886 76 102.89 100.96 430.00 160.00 197.57 512.15 421.94 2.887 77 105.00 101.67 430.0D 160.00 202.64 491.10 401.53 2.887 78 103.95 101.32 430.00 160.00 200.40 500.54 410.71 2.887 79 103.42 101.14 430.00 160.00 199.06 505.60 415.82 2.887 80 104.47 101.49 433.55 159.47 201.20 515.34 425.00 2.887 81 105.00 101.67 433.55 159.47 202.50 510.09 419.90 2.888 82 104.47 101.49 430.00 160.00 201.72 495.27 405.61 2.888 63 102.89 100.96 430.00 160.00 197.76 511.05 420.92 2.888 64 105.00 101.67 430.00 160.00 203.04 489.99 400.51 2.889 65 103.95 101.32 430.00 160.00 200.60 499.45 409.69 2.889 86 103.42 101.14 430.00 160.00 199.28 504.71 414.80 2.689 87 104.47 101.49 433.55 159.47 201.40 514.24 423.98 2.889 88 104.47 101.49 430.00 160.00 202.71 489.77 400.51 2.889 89 105.00 101.67 433.55 159.47 202.70 508.99 418.88 2.690 90 104.47 101.49 430.00 160.00 201.92 494.17 404.59 2.890 91 102.89 100.96 430.00 160.00 197.96 509.96 419.90 2.890 92 103.42 101.14 430.00 160.00 199.48 503.61 413.78 2.891 93 103.95 101.32 430.00 160.00 200.80 498.35 408.67 2.891 94 104.47 101.49 433.55 159.47 201.59 513.15 422.96 2.891 95 102.89 100.96 430.00 160.00 198.16 508.87 418.88 2.891 96 105.00 101.67 433.55 159.47 202.89 507.90 417.86 2.891 97 104.47 101.49 430.00 160.00 202.11 493.07 403.57 2.691 98 105.00 101.67 430.00 160.00 204.42 482.26 393.37 2.892 99 105.00 101.67 433.55 159.47 203.85 502.41 412.76 2.892 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: 160.00 Centre: XC: 198.31 YC: 516.30 Radius: R: 425.00 Generated failure surface: (20 points) 105.00 101.67 122.49 98.11 140.11 95.30 157.84 93.23 175.64 91.90 193.48 91.32 211.32 91.50 229.15 92.42 246.91 94.08 264.60 96.50 282.16 99.65 299.58 103.54 316.82 108.15 333.85 113.49 350.64 119.53 367.17 126.28 383.39 133.71 399.29 141.82 414.84 150.59 430.00 160.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width L ngth Matl Cohesion Phi Weight Force Stress Factor 1 105.00 18.06 -11.5 .21 .37 2 0.00 35.0 2257.88 25691.39 3213.04 1.07 2 113.21 63.98 -11.5 .28 .47 3 100.00 18.0 8138.07 30113.60 3643.27 1.04 3 122.49 77.48 -9.1 .98 .07 3 100.00 18.0 9957.89 23126.64 4025.89 1.03 4 129.47 164.44 -9.1 1 .65 1 .78 4 2000.00 20.0 21210.48 36223.65 4524.95 1.03 5 140.11 177.85 -6.7 .86 .92 4 2000.00 20.0 22971.71 30746.90 4889.08 1.02 6 148.98 213.22 -6.7 .86 .92 4 2000.00 20.0 27539.72 31323.88 5224.16 1.02 7 157.84 247.98 -4.3 .90 .92 4 2000.00 20.0 32009.56 31796.95 5492.23 1.01 8 166.74 280.28 -4.3 .90 .92 4 2000.00 20.0 36141.21 32166.26 5773.71 1.01 9 175.64 311.64 -1.9 .92 .92 4 2000.00 20.0 40131.63 32431.24 5986.17 1.00 10 184.56 340.73 -1.9 .92 .92 4 2000.00 20.0 43809.34 32592.12 6213.88 1.00 11 193.48 368.34 0.6 .92 .92 4 2000.00 20.0 47275.48 32649.10 6370.86 1.00 12 202.40 394.12 0.6 .92 .92 4 2000.00 20.0 50485.21 32601.34 6544.75 1.00 13 211.32 417.66 3.0 .91 ,..92 4 2000.00 20.0 53387.86 32448.94 . 6646.42 0.99 14 220.23 440.03 3.0 .91 .92 4 2000.00 20.0 56118.36 32192.56 6766.48 0.99 15 229.15 459.29 5.4 .88 .92 4 2000.00 20.0 58430.40 31832.20 6813.09 0.99 16 236.03 478.19 5.4 .88 92 4 2000.00 20.0 60674.46 31367.78 6879.46 0.99 17 246.91 170.32 7.8 .09 .11 4 2000.00 20.0 21572.08 10826.57 6867.15 0.99 18 250.00 410.26 7.8 .30 .37 4 2000.00 20.0 51868.36 25279.42 6949.31 0.99 19 257.30 420.77 7.8 .30 .37 4 2000.00 20.0 53063.12 24821.71 7109.13 0.99 20 264.60 164.36 10.2 .81 .85 4 2000.00 20.0 20690.42 9471.13 7160.79 0.99 21 267.40 373.42 10.2 .30 .40 3 100.00 18.0 46923.22 20938.35 7359.50 1.00 22 273.70 379.53 10.2 .30 .40 3 100.00 18.0 47572.25 20486.89 7459.05 1.00 23 280.00 130.99 10.2 .16 .20 3 100.00 18.0 16393.21 6933.04 7481.76 1.00 24 282.16 94.51 12.6 .57 .61 3 100.00 18.0 11818.45 . 5038.50 7407.81 1.00 25 283.73 468.43 12.6 .92 .12 2 0.00 35.0 58553.30 24882.84 7164.21 0.97 26 291.66 454.41 12.6 .92 .12 2 0.00 35.0 56801.55 23986.86 6948.90 0.97 27 299.58 301.99 15.0 .42 .61 2 D.00 35.0 37748.28 16007.68 6712.86 0.97 26 305.00 163.83 15.0 .00 .11 5 0.00 45.0 18021.55 8645.24 5729.86 0.95 29 306.00 467.81 15.0 .82 .13 2 0.00 35.0 58475.86 24520.50 6384.68 0.97 30 316.82 430.15 17.4 .52 .92 2 0.00 35.0 53768.17 22559.04 6043.10 0.97 31 325.34 407.43 17.4 .52 .92 2 0.00 35.0 50928.68 21073.64 5721.61 0.97 32 333.85 377.83 19.8 .40 .92 2 0.00 35.0 47228.25 19489.49 5344.93 0.98 33 342.25 352.45 19.8 .40 .92 2 0.00 35.0 44055.98 17806.36 4982.48 0.98 34 350.64 320.39 22.2 .26 .92 2 0.00 35.0 40048.45 16025.60 4568.84 0.98 35 358.91 292.52 22.2 .26 .92 2 0.00 35.0 36565.41 14147.59 4166.54 0.98 36 367.17 258.50 24.6 .11 .92 2 0.00 35.0 32312.05 12173.91 3717.48 0.99 37 375.28 228.35 24.6 .11 .92 2 0.00 35.0 28543.30 10104.50 3276.50 0.99 38 383.39 192.87 27.0 .95 .92 2 0.00 35.0 24108.60 7941.18 2793.67 1.00 39 391.34 160.64 27.0 .95 .92 2 0.00 35.0 20060.37 5683.91 2315.25 1.00 40 399.29 117.01 29.4 .25 .33 2 0.00 35.0 14626.21 3187.54 1617.69 1.01 41 406.54 87.35 29.4 .25 .33 2 D.00 35.0 10918.49 1062.51 1337.62 1.01 42 413.80 61.12 31.5 .10 .51 2 0.00 35.0 7640.43 0.00 819.30 1.02 43 421.90 20.37 31.8 .10 .54 2 0.00 35.0 2546.81 0.00 272.67 1.02 X -S Area: 11760.94 Path Leng h: 339.09 X -S Weight: 1483411.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 4 RD EQ.gmf Processed: 30 Jul 2019 10:55:35 DATA: Analysis 1 - Case 4 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 185.00 Profile: 2 (2 points) 0.00 160.00 Profile: 3 (2 points) 0.00 156.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 385.00 185.00 Profile: 7 (2 points) 388.00 185.00 Profile: 8 (2 points) 388.00 160.00 Profile: 9 (2 points) 388.00 156.00 Profile: 10 (2 points) 388.00 100.00 Profile: 11 (2 points) 385.00 97.00 Slope Surface (4 points) 0.00 100.00 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 385.00 Material beneath: 388.00 Material beneath: 488.00 Material beneath: 488.00 Material beneath: 488.00 Material beneath: 488.00 Material beneath: 488.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 185.00 6 - Clay 160.00 2 - Sand and Gravel 156.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 185.00 2 - Sand and Gravel 185.00 6 - Clay 160.00 2 - Sand and Gravel 156.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 355.00 185.00 325.00 175.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 104.00 YL: 101.33 XR: 405.00 YR: Centre: XC: 174.68 YC: 430.33 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 8.00 20 XR 50.00 20 R 23.00 50 RESULTS: Analysis 1 - Case 4 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface 488.00 185.00 488.00 175.00 185.00 336.50 Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.505 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.30 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 104.00 101.33 405.00 185.00 174.68 430.33 336.50 1.299 <-- Critical Surface 2 104.00 101.33 405.00 185.00 174.82 429.82 336.03 1.301 3 104.00 101.33 405.00 185.00 174.96 429.30 335.56 1.303 4 104.00 101.33 405.00 185.00 175.11 428.79 335.09 1.305 5 104.00 101.33 405.00 185.00 175.25 428.28 334.62 1.308 6 103.58 101.19 405.00 185.00 174.48 430.14 336.50 1.310 7 104.00 101.33 405.00 185.00 175.96 425.72 332.28 1.311 8 104.00 101.33 405.00 185.00 175.39 427.77 334.15 1.311 9 104.00 101.33 405.00 185.00 175.82 426.24 332.74 1.311 10 104.00 101.33 405.00 185.00 175.53 427.26 333.68 1.313 11 103.58 101.19 405.00 185.00 174.62 429.63 336.03 1.313 12 104.00 101.33 405.00 185.00 175.68 426.75 333.21 1.313 13 103.58 101.19 405.00 185.00 175.19 427.58 334.15 1.315 14 103.58 101.19 405.00 185.00 174.76 429.12 335.56 1.316 15 103.58 101.19 405.00 185.00 174.91 428.61 335.09 1.317 16 103.58 101.19 405.00 185.00 175.05 428.09 334.62 1.317 17 104.00 101.33 405.00 185.00 176.10 425.21 331.81 1.318 18 103.16 101.05 405.00 185.00 174.56 428.93 335.56 1.318 19 104.00 101.33 405.00 185.00 176.24 424.70 331.34 1.320 20 103.16 101.05 405.00 185.00 174.28 429.95 336.50 1.321 21 103.58 101.19 405.00 185.00 175.33 427.07 333.68 1.321 22 103.16 101.05 405.00 185.00 174.42 429.44 336.03 1.321 23 104.00 101.33 405.00 185.00 176.39 424.19 330.87 1.321 24 103.58 101.19 405.00 185.00 175.48 426.56 333.21 1.323 25 104.00 101.33 405.00 185.00 176.53 423.67 330.40 1.323 26 103.58 101.19 405.00 185.00 175.62 426.05 332.74 1.324 27 104.00 101.33 407.63 185.00 176.82 429.86 336.50 1.324 28 104.00 101.33 405.00 185.00 176.67 423.16 329.93 1.324 29 103.16 101.05 405.00 185.00 174.71 428.42 335.09 1.325 30 103.58 101.19 405.00 185.00 175.76 425.53 332.28 1.326 31 104.00 101.33 407.63 185.00 176.95 429.35 336 03 1.326 32 104.00 101.33 405.00 185.00 176.82 422.65 329.46 1.326 33 103.16 101.05 405.00 185.00 174.85 427.91 334.62 1.327 34 103.58 101.19 405.00 185.00 175.9.0 425.02 331.81 1.327 35 104.00 101.33 407.63 185.00 177.10 428.84 335.56 1.327 36 104.00 101.33 405.00 185.00 176.96 422.13 328.99 1.327 37 103.16 101.05 405.00 185.00 174.99 427.39 334.15 1.328 38 103.58 101.19 405.00 185.00 176.05 424.51 331.34 1.329 39 104.00 101.33 407.63 185.00 177.24 428.32 335.09 1.329 40 104.00 101.33 405.00 185.00 177.10 421.62 328.52 1.329 41 103.16 101.05 405.00 185.00 175.13 426.88 333.68 1.330 42 102.74 100.91 405.00 185.00 174.08 429.76 336.50 1.330 43 103.58 101.19 405.00 185.00 176.19 423.99 330.87 1.330 44 104.00 101.33 407.63 185.00 177.38 427.81 334.62 1.330 45 104.00 101.33 405.00 185.00 177.24 421.10 328.05 1.331 46 103.16 101.05 405.00 185.00 175.28 426.37 333.21 1.331 47 102.74 100.91 405.00 185.00 174.22 429.25 336.03 1.332 48 104.00 101.33 407.63 185.00 177.52 427.30 334.15 1.332 49 103.58 101.19 405.00 185.00 176.33 423.48 330.40 1.332 50 104.00 101.33 405.00 185.00 177.39 420.59 327.58 1.332 51 103.58 101.19 407.63 185.00 176.62 429.67 336.50 1.333 52 103.16 101.05 405.00 185.00 175.42 425.86 332.74 1.333 53 102.74 100.91 405.00 185.00 174.37 428.74 335.56 1.333 54 104.00 101.33 407.63 185.00 177.66 426.78 333.68 1.333 55 103.58 101.19 405.00 185.00 176.47 422.97 329.93 1.333 56 104.00 101.33 405.00 185.00 177.53 420.07 327.11 1.334 57 103.58 101.19 407.63 185.00 176.76 429.16 336.03 1.334 58 103.16 101.05 405.00 185.00 175.56 425.34 332.28 1.334 59 102.74 100.91 405.00 185.00 174.51 428.23 335.09 1.334 60 104.00 101.33 407.63 185.00 177.81 426.27 333.21 1.335 61 103.58 101.19 405.00 185.00 176.62 422.45 329.46 1.335 62 104.00 101.33 405.00 185.00 177.67 419.56 326.64 1.335 63 103.58 101.19 407.63 185.00 176.90 428.65 335.56 1.336 64 103.16 101.05 405.00 185.00 175.70 424.83 331.81 1.336 65 102.74 100.91 405.00 185.00 174.65 427.72 334.62 1.336 66 104.00 101.33 407.63 185.00 177.95 425.76 332.74 1.336 67 103.58 101.19 405.00 185.00 176.76 421.94 328.99 1.336 68 104.00 101.33 405.00 185.00 177.82 419.04 326.17 1.337 69 103.58 101.19 407.63 185.00 177.04 428.13 335.09 1.337 70 102.74 100.91 405.00 185.00 174.79 427.20 334.15 1.337 71 103.16 101.05 405.00 185.00 175.85 424.32 331.34 1.337 72 104.00 101.33 407.63 185.00 178.09 425.24 332.28 1.338 73 103.58 101.19 405.00 185.00 176.90 421.43 328.52 1.338 74 104.00 101.33 405.00 185.00 177.96 418.53 325.70 1.338 75 103.58 101.19 407.63 185.00 177.18 427.62 334.62 1.339 76 102.74 100.91 405.00 185.00 174.93 426.69 333.68 1.339 77 103.16 101.05 405.00 185.00 175.99 423.80 330.87 1.339 78 102.32 100.77 405.00 185.00 173.88 429.57 336.50 1.339 79 104.00 101.33 407.63 185.00 178.23 424.73 331.81 1.339 80 103.58 101.19 405.00 185.00 177.05 420.91 328.05 1.339 81 104.00 101.33 405.00 185.00 178.10 418.01 325.23 1.340 62 103.58 101.19 407.63 185.00 177.32 427.11 334.15 1.340 63 102.74 100.91 405.00 185.00 175.08 426.18 333.21 1.340 64 103.16 101.05 405.00 185.00 176.13 423.29 330.40 1.340 65 102.32 100.77 405.00 185.00 174.02 429.06 336.03 1.340 86 104.00 101.33 407.63 185.00 178.37 424.22 331.34 1.341 87 103.58 101.19 405.00 185.00 177.19 420.40 327.58 1.341 88 104.00 101.33 405.00 185.00 178.25 417.50 324.77 1.341 89 103.16 101.05 407.63 185.00 176.42 429.48 336.50 1.341 90 102.74 100.91 405.00 185.00 175.22 425.67 332.74 1.342 91 103.58 101.19 407.63 185.00 177.46 426.59 333.68 1.342 92 103.16 101.05 405.00 185.00 176.28 422.78 329.93 1.342 93 102.32 100.77 405.00 185.00 174.17 428.55 335.56 1.342 94 104.00 101.33 407.63 185.00 178.51 423.70 330.87 1.342 95 103.58 101.19 405.00 185.00 177.33 419.88 327.11 1.342 96 103.16 101.05 407.63 185.00 176.56 428.97 336.03 1.343 97 104.00 101.33 405.00 185.00 178.39 416.98 324.30 1.343 98 102.74 100.91 405.00 185.00 175.36 425.15 332.28 1.343 99 103.58 101.19 407.63 185.00 177.61 426.08 333.21 1.343 Critical Failure Surface (circle 1) Intersects: XL: 104.00 YL: 101.33 XR: 405.00 YR: 185.00 Centre: XC: 174.68 YC: 430.33 Radius: R: 336.50 Generated failure surface: (20 points) 104.00 101.33 120.80 98.17 137.74 95.86 154.78 94.42 171.87 93.84 188.96 94.13 206.02 95.29 223.00 97.31 239.85 100.20 256.53 103.93 273.01 108.51 289.22 113.92 305.15 120.15 320.73 127.18 335.94 134.99 350.74 143.56 365.08 152.87 378.92 162.90 392.24 173.62 405.00 185.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width L ngth Matl Cohesion Phi Weight Force Stress Factor 1 104.00 13.07 -10.7 7.08 .20 2 0.00 35.0 1633.28 829.68 243.84 1.13 2 111.08 60.58 -10.7 9.72 .90 3 100.00 18.0 7714.58 3846.46 828.54 1.07 3 120.80 92.41 -7.8 8.57 .65 3 100.00 18.0 11882.61 5819.62 1422.04 1.04 4 129.38 123.47 -7.8 8.37 .44 4 2000.00 20.0 15912.19 7775.94 2158.63 1.05 5 137.74 157.60 -4.8 8.52 .55 4 2000.00 20.0 20313.42 9869.51 2548.37 1.03 6 146.26 187.94 -4.8 8.52 .55 4 2000.00 20.0 24204.17 11769.43 3010.84 1.03 7 154.78 217.12 - -1.9 8.54 .55 4 2000.00 20.0 27922.80 13555.86 3336.78 1.01 8 163.32 243.91 -1.9 8.54 .55 4 2000.00 20.0 31311.94 15228.97 3735.39 1.01 9 171.87 268.98 1.0 8.55 .55 4 2000.00 20.0 34454.79 16786.59 3995.08 1.00 10 180.41 292.08 1.0 8.55 .55 4 2000.00 20.0 37323.34 18228.73 4329.89 1.00 11 188.96 312.63 3.9 8.53 .55 4 2000.00 20.0 39840.88 19553.42 4524.02 0.98 12 197.49 331.94 3.9 8.53 .55 4 2000.00 20.0 42174.73 20760.76 4795.18 0.98 13 206.02 292.86 6.8 7.17 .23 4 2000.00 20.0 37098.78 18403.71 4908.42 0.97 14 213.19 303.88 6.8 7.17 .23 4 2000.00 20.0 38378.08 19096.22 5084.07 0.97 15 220.37 114.07 6.8 2.63 .65 3 100.00 18.0 14378.09 7168.28 5382.09 0.98 16 223.00 347.92 9.7 7.85 .96 3 100.00 16.0 43742.46 22025.50 5444.66 0.97 17 230.85 357.91 9.7 7.85 .96 3 100.00 18.0 44823.06 22658.23 5579.93 0.97 18 238.70 417.21 12.2 8.92 .13 2 0.00 35.0 52151.48 26640.55 5540.78 0.92 19 247.61 425.91 12.6 8.92 .14 2 0.00 35.0 53239.14 27235.22 5647.55 0.91 20 256.53 277.52 15.5 5.73 .95 2 0.00 35.0 34690.38 17974.00 5655.54 0.90 21 262.27 279.34 15.5 5.73 .95 2 0.00 35.0 34917.91 18091.88 5692.63 0.90 22 268.00 245.36 15.5 5.01 .20 2 0.00 35.0 30649.16 15890.95 5723.74 0.90 23 273.01 343.82 18.4 6.99 .37 2 0.00 35.0 42877.79 22615.95 5663.52 0.89 24 280.00 453.42 18.4 9.22 .72 2 0.00 35.0 56492.70 29825.52 5658.39 0.89 25 289.22 389.51 21.4 7.96 .55 2 0.00 35.0 48529.25 26097.39 5565.76 0.89 26 297.19 385.85 21.4 7.96 .55 2 0.00 35.0 48072.10 25852.36 5513.35 0.89 27 305.15 372.33 24.3 7.79 .55 2 0.00 35.0 46385.86 25485.81 5371.24 0.88 28 312.94 365.20 24.3 7.79 .55 2 0.00 35.0 45493.68 24997.26 5267.96 0.88 29 320.73 196.30 27.2 4.27 .80 2 0.00 35.0 24452.63 13769.86 5112.15 0.88 30 325.00 247.00 27.2 5.47 .15 2 0.00 35.0 30765.98 16976.19 5002.07 0.88 31 330.47 241.61 27.2 5.47 .15 2 0.00 35.0 30091.58 15897.67 4867.56 0.68 32 335.94 316.22 30.1 7.40 .55 2 0.00 35.0 39379.24 20202.00 4619.34 0.68 33 343.34 302.75 30.1 7.40 .55 2 0.00 35.0 37696.13 17915.74 4382.27 0.88 34 350.74 167.75 33.0 4.26 .08 2 0.00 35.0 20883.77 9534.99 4114.61 0.88 35 355.00 186.58 33.0 5.04 .01 2 0.00 35.0 23221.64 10134.35 3851.88 0.88 36 360.04 170.10 33.0 5.04 .01 2 0.00 35.0 21161.41 8908.00 3496.01 0.88 37 365.08 132.09 35.9 4.32 .34 2 0.00 35.0 16424.26 6847.21 3093.81 0.69 38 369.40 149.12 35.9 5.52 .82 6 50.00 16.0 18584.61 7233.90 3023.37 1.06 39 374.92 94.27 35.9 4.00 .94 2 0.00 35.0 11783.41 4178.98 2354.68 0.89 40 378.92 119.46 38.8 6.08 .60 2 0.00 35.0 14932.46 4700.30 1895.89 0.90 41 385.00 48.01 38.8 3.00 .85 5 0.00 45.0 5280.90 1442.40 1230.23 0.79 42 388.00 55.52 38.8 4.24 .45 2 0.00 35.0 6940.37 1049.46 1199.41 0.90 43 392.24 16.56 41.7 1.55 .08 2 0.00 35.0 2069.79 89.48 916.42 0.90 44 393.79 42.03 41.7 5.60 .51 2 0.00 35.0 5254.26 0.00 633.08 0.90 45 399.40 14.01 41.7 5.60 .51 2 0.00 35.0 1751.42 0.00 211.03 0.90 X -S Area: 10173.21 Path Length: 324.65 X -S Weight: 1277282.50 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 4 Full EQ.gmf Processed: 30 Jul 2019 11:20:43 DATA: Analysis 1 - Case 4 - Full Reservoir EQ Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi Unitweight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi Unitweight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) Material beneath: 2 - Sand and Gravel 0.00 185.00 385.00 185.00 Profile: 2 (2 points) Material beneath: 6 - Clay 0.00 160.00 385.00 160.00 Profile: 3 (2 points) Material beneath: 2 - Sand and Gravel 0.00 156.00 385.00 156.00 Profile: n (2 points) Material. beneath: 3 - Weathered Bedrock 0.00 100.00 385.00 100.00 Profile: 5 (2 points) Material beneath: 4 - Stable Bedrock 0.00 97.00 385.00 97.00 Profile: 6 (2 points) Material beneath: 5 - Slurry Wall 385.00 185.00 388.00 185.00 Profile: 7 (2 points) Material beneath: 2 - Sand and Gravel 388.00 185.00 488.00 185.00 Profile: 8 (2 points) Material beneath: 6 - Clay 388.00 160.00 488.00 160.00 Profile: 9 (2 points) Material beneath: 2 - Sand and Gravel 388.00 156.00 488.00 156.00 Profile: 10 (2 points) Material beneath: 3 - Weathered Bedrock 388.00 100.00 488.00 100.00 Profile: 11 (2 points) Material beneath: 4 - Stable Bedrock 385.00 97.00 488.00 97.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 0.00 175.00 Failure Surface 100.00 100.00 100.00 175.00 355.00 185.00 325.00 175.00 488.00 185.00 488.00 175.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 405.00 YR: 185.00 Centre: XC: 167.38 YC: 458.76 Radius: R: 362.50 Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: XL XR R Range of variation: 10.00 50.00 75.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 4 - Full Reservoir EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.362 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.79 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 405.00 185.00 167.38 458.76 362.50 1.792 <-- Critical Surface 2 105.00 101.67 405.00 185.00 167.84 457.12 360.97 1.819 3 105.00 101.67 405.00 185.00 168.29 455.49 359.44 1.838 4 104.47 101.49 405.00 185.00 167.13 458.54 362.50 1.847 5 105.00 101.67 405.00 185.00 168.74 453.85 357.91 1.858 6 104.47 101.49 405.00 185.00 167.58 456.90 360.97 1.866 7 105.00 101.67 407.63 185.00 169.57 458.37 362.50 1.875 8 105.00 101.67 405.00 185.00 169.20 452.21 356.38 1.878 9 104.47 101.49 405.00 185.00 168.03 455.27 359.44 1.885 10 103.95 101.32 405.00 185.00 166.87 458.31 362.50 1.894 11 105.00 101.67 405.00 185.00 169.66 450.57 354.85 1.897 12 105.00 101.67 407.63 185.00 170.02 456.73 360.97 1.697 13 104.47 101.49 405.00 185.00 168.49 453.63 357.91 1.908 14 103.95 101.32 405.00 185.00 167.32 456.68 360.97 1.909 15 104.47 101.49 407.63 185.00 169.31 458.15 362.50 1.919 16 105.00 101.67 407.63 185.00 170.47 455.09 359.44 1.920 17 105.00 101.67 405.00 185.00 170.11 448.93 353.32 1.920 18 104.47 101.49 405.00 185.00 168.94 451.99 356.38 1.921 ].9 103.95 101.32 405.00 185.00 167.78 455.04 359.44 1.928 20 103.42 101.14 405.00 185.00 166.61 458.09 362.50 1.930 21 105.00 101.67 407.63 185.00 170.92 453.45 357.91 1.932 22 104.47 101.49 407.63 185.00 169.76 456.51 360.97 1.935 23 105.00 101.67 405.00 185.00 170.57 447.29 351.79 1.935 24 104.47 101.49 405.00 185.00 169.40 450.35 354.85 1.937 25 103.95 101.32 405.00 185.00 168.23 453.40 357.91 1.939 26 103.42 101.14 405.00 185.00 167.07 456.45 360.97 1.943 27 105.00 101.67 410.26 185.00 171.74 457.97 362.50 1.947 28 105.00 101.67 407.63 185.00 171.37 451.81 356.38 1.949 29 104.47 101.49 407.63 185.00 170.21 454.87 359.44 1.950 30 105.00 101.67 405..00. 185.00 171.03 445.64 350.26 1.952 31 103.95 101.32 407.63 185.00 169.05 457.92 362.50 1.953 32 104.47 101.49 405.00 185.00 169.86 448.71 353.32 1.953 33 103.95, 101.32 405.00 185.00 168.69 451.76 356.38 1.955 34 103.42 101.14 405.00 185.00 167.52 454.82 359.44 1.958 35 102.89 100.96 405.00 185.00 166.36 457.87 362.50 1.962 36 105.00 101.67 410.26 185.00 172.19 456.33 360.97 1.963 37 105.00 101.67 407.63 185.00 171.83 450.16 354.85 1.965 38 104.47 101.49 407.63 185.00 170.66 453.23 357.91 1.966 39 103.95 101.32 407.63 185.00 169.50 456.28 360.97 1.968 40 105.00 101.67 405.00 185.00 171.48 444.00 348.72 1.969 41 104.47 101.49 405.00 185.00 170.31 447.06 351.79 1.969 42 103.95 101.32 405.00 185.00 169.15 450.12 354.85 1.971 43 105.00 101.67 405.00 185.00 171.94 442.35 347.19 1.973 44 103.42 101.14 405.00 185.00 167.98 453.18 357.91 1.973 45 105.00 101.67 407.63 185.00 ].72.28 448.52 353.32 1.975 46 102.89 100.96 405.00 185.00 166.81 456.23 360.97 1.977 47 105.00 101.67 410.26 185.00 172.64 454.68 359.44 1.978 48 104.47 101.49 410.26 185.00 171.46 457.74 362.50 1.980 49 104.47 101.49 405.00 185.00 170.77 445.41 350.26 1.980 50 104.47 101.49 407.63 185.00 171.12 451.58 356.38 1.982 51 104.47 101.49 407.63 185.00 171.57 449.94 354.85 1.983 52 103.95 101.32 407.63 185.00 169.96 454.64 359.44 1.984 53 104.47 101.49 410.26 185.00 171.93 456.10 360.97 1.986 54 103.42 101.14 407.63 185.00 168.80 457.70 362.50 1.986 55 103.95 101.32 405.00 185.00 169.60 448.48 353.32 1.987 56 103.95 101.32 405.00 165.00 170.06 446.83 351.79 1.989 57 105.00 101.67 410.26 185.00 173.09 453.04 357.91 1.989 58 103.42 101.14 405.00 185.00 168.44 451.54 356.38 1.989 59 105.00 101.67 407.63 185.00 172.73 446.87 351.79 1.990 60 103.95 101.32 407.63 185.00 170.41 453.00 357.91 1.991 61 105.00 101.67 405.00 185.00 172.40 440.70 345.66 1.992 62 102.89 100.96 405.00 185.00 167.27 454.59 359.44 1.992 63 104.47 101.49 405.00 185.00 171.23 443.77 348.72 1.994 64 102.37 100.79 405.00 185.00 166.10 457.64 362.50 1.996 65 103.42 101.14 405.00 185.00 168.89 449.90 354.85 1.997 66 105.00 101.67 412.89 185.00 173.90 457.56 362.50 1.998 67 105.00 101.67 410.26 185.00 173.54 451.39 356.38 1.999 68 103.42 101.14 407.63 185.00 169.25 456.06 360.97 1.999 69 105.00 101.67 407.63 185.00 173.19 445.22 350.26 2.000 70 104.47 101.49 410.26 185.00 172.38 454.46 359.44 2.002 71 105.00 101.67 405.00 185.00 172.86 439.04 344.13 2.002 72 104.47 101.49 407.63 185.00 172.02 446.29 353.32 2.003 73 104.47 101.49 405.00 185.00 171.69 442.12 347.19 2.005 74 103.95 101.32 410.26 185.00 171.22 457.52 362.50 2.006 75 102.89 100.96 405.00 185.00 167.72 452.95 357.91 2.006 76 103.95 101.32 407.63 185.00 170.66 451.36 356.38 2.006 77 103.95 101.32 405.00 185.00 170.52 445.19 350.26 2.008 78 105.00 101.67 412.89 185.00 174.35 455.91 360.97 2.008 79 102.89 100.96 407.63 185.00 168.54 457.47 362.50 2.008 BO 105.00 101.67 410.26 185.00 173.99 449.74 354.85 2.009 81 103.42 101.14 407.63 185.00 169.70 454.42 359.44 2.010 82 102.37 100.79 405.00 185.00 166.56 456.01 360.97 2.010 83 105.00 101.67 407.63 185.00 173.64 443.57 348.72 2.010 84 103.42 101.14 405.00 185.00 169.35 448.25 353.32 2.012 85 104.47 101.49 410.26 185.00 172.83 452.81 357.91 2.012 86 104.47 101.49 407.63 185.00 172.48 446.64 351.79 2.013 67 105.00 101.67 405.00 185.00 173.32 437.39 342.60 2.013 88 102.37 100.79 405.00 185.00 167.01 454.37 359.44 2.015 89 104.47 101.49 405.00 185.00 172.15 440.47 345.66 2.015 90 103.95 :101.32 410.26 185.00 171.67 455.88 360.97 2.015 91 102.89 100.96 405.00 185.00 168.18 451.31 356.38 2.016 92 103.95 101.32 407.63 185.00 171.32 449.71 354.85 2.016 93 105.00 101.67 412.89 185.00 174.79 454.26 359.44 2.018 94 103.95 101.32 405.00 185.00 170.98 443.54 348.72 2.018 95 105.00 101.67 410.26 185.00 174.44 448.09 353.32 2.019 96 103.42 101.14 407.63 185.00 170.15 452.77 357.91 2.020 97 104.47 101.49 412.89 185.00 173.64 457.33 362.50 2.021 98 105.00 101.67 407.63 185.00 174.10 441.92 347.19 2.021 99 103.42 101.14 405.00 185.00 169.81 446.61 351.79 2.021 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 405.00 YR: 185.00 Centre: XC: 167.38 YC: 458.76 Radius: R: 362.50 Generated failure surface: (20 points) 105.00 101.67 121.75 99.14 138.59 97.40 155.50 96.45 172.44 96.29 169.37 96.93 206.24 98.35 223.03 100.56 239.70 103.55 256.22 107.31 272.54 111.85 268.62 117.14 304.45 123.17 319.97 129.94 335.17 137.43 349.99 145.61 364.42 154.49 378.42 164.02 391.95 174.20 405.00 185.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 44 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 7.40 -8.6 5.53 5.59 2 0.00 35.0 924.93 25733.20 4691.02 1.07 2 110.53 22.20 -8.6 5.53 5.59 2 0.00 35.0 2774.77 26023.96 4921.05 1.07 3 116.06 38.28 -8.6 5.69 5.75 3 100.00 18.0 4824.63 27078.79 5155.57 1.04 4 121.75 83.77 -5.9 8.42 8.47 3 100.00 18.0 10646.00 40314.71 5422.02 1.02 5 130.17 114.75 -5.9 8.42 8.47 3 100.00 18.0 14635.29 40774.19 5725.05 1.02 6 1.38.59.. 121.09.....-3.2. 7.18 .7.19 3 100.00 18.0 15458.22 34927..67. 5969.32 ... 1.01 7 145.78 196.05 -3.2 "- 9.73 .74 4 2000.00 20.0 25015.33 47587.25 6276.87 1.01 8 155.50 198.99 • -0.5 8.47 .47 4 2000.00 20.0 25359.62 41526.66 6445.68 1.00 9 163.97 223.57. -0.5 8.47 .47 4 2000.00 20.0 28442.44 41568.75 6633.96 1.00 10 172.44 246.30 2.1 8.46 .47 4 2000.00 20.0 31267.78 41506.38 6724.64 0.99 11 180.90 267.50 2.1 8.46 .47 4 2000.00 20.0 33874.58 41339.36 6855.53 0.99 12 189.37 286.18 4.8 8.44 .47 3 100.00 18.0 36139.26 41068.55 6978.89 0.99 13 197.80 303.91 4.8 8.44 .47 3 100.00 18.0 38260.38 40692.83 7052.93 0.99 14 206.24 236.82 7.5 6.28 .34 3 100.00 18.0 29726.45 30140.70 7074.58 0.99 15 212.52 244.78 7.5 6.28 .34 3 100.00 18.0 30638.87 29814.16 7087.62 0.99 16 218.81 169.27 7.5 4.23 .27 2 0.00 35.0 21159.21 19887.38 7045.92 0.96 17 223.03 342.55 10.2 8.34 .47 2 0.00 35.0 42818.82 38942.54 7002.76 0.95 16 231.37 353.25 10.2 8.34 .47 2 0.00 35.0 44155.89 38152.51 6984.52 0.95 19 239.70 358.79 12.8 8.26 .47 2 0.00 35.0 44848.34 37259.93 6897.68 0.94 20 247.96 365.96 12.8 8.26 .47 2 0.00 35.0 45745.41 36264.98 6830.15 0.94 21 256.22 264.67 15.5 5.89 .11 2 0.00 35.0 33083.35 25513.89 6709.46 0.94 22 262.11 266.60 15.5 5.89 .11 2 0.00 35.0 33324.39 24889.47 6625.83 0.94 23 266.00 206.57.' 15.5 4.54 .71 2 0.00 35.0 25803.56 18737.01 6548.40 0.94 24 272.54 340.99 18.2 7.46 .86 2 0.00 35.0 42520.63 30362.70 6386.20 0.93 25 280.00 394.33 18.2 8.62 .08 2 0.00 35.0 49119.24 33586.27 6217.65 0.93 26 286.62 360.39 20.9 7.91 .47 2 0.00 35.0 44891.10 29779.35 5980.62 0.93 27 296.54 357.38 20.9 7.91 .47 2 0.00 35.0 44514.70 28184.57 5771.56 0.93 28 304.45 346.06 23.6 7.76 .47 2 0.00 35.0 43102.20 26493.21 5495.83 0.93 29 312.21 339.87 23.6 7.76 .47 2 0.00 35.0 42329.12 24704.88 5242.04 0.93 30 319.97 216.00 26.2 5.03 .60 2 0.00 35.0 26899.70 15318.91 4973.97 0.93 31 325.00 214.41 26.2 5.08 .67 2 0.00 35.0 26699.97 14616.02 4620.59 0.93 32 330.08 210.29 26.2 5.08 .67 2 0.00 35.0 26164.93 13730.15 4710.39 0.93 33 335.17 297.64 28.9 7.41 .47 2 0.00 35.0 37056.52 18772.97 4505.01 0.94 34 342.58 285.61 28.9 7.41 .47 2 0.00 35.0 35552.73 16609.69 4292.81 0.94 35 349.99 185.32 31.6 5.01 .88 2 0.00 35.0 23065.00 10213.57 4050.62 0.95 36 355.00 314.73 31.6 9.42 1 .06 2 0.00 35.0 39153.32 16154.65 3634.06 0.95 37 364.42 66.15 34.3 2.22 .69 2 0.00 35.0 8224.29 3316.14 3180.96 0.96 38 366.64 158.53 34.3 5.87 .10 6 50.00 16.0 19757.87 7536.57 3121.32 1.09 39 372.51 135.70 34.3 5.90 .14 2 0.00 35.0 16962.21 5769.01 2439.87 0.96 40 378.42 121.80 36.9 6.58 .24 2 0.00 35.0 15225.57 4370.41 1908.16 0.97 41 385.00 44.70 36.9 3.00 .75 5 0.00 45.0 4917.34 1147.92 1244.95 0.68 42 388.00 48.58 36.9 3.95 .95 2 0.00 35.0 6072.51 705.83 1219.38 0.97 43 391.95 52.84 39.6 6.52 .47 2 0.00 35.0 6604.50 0.00 764.99 0.98 44 398.48 17.61 39.6 6.52 .47 2 0.00 35.0 2201.49 0.00 255.00 0.98 X -S Area: 9428.19 Path Length: 321.79 X -S Weight: 1179982.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 5 RD EQ.gmf Processed: 30 Jul 2019 12:11:23 DATA: Analysis 1 - Case 5 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 200.00 Profile: 2 (2 points) 0.00 152.00 Profile: 3 (2 points) 0.00 150.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 432.00 200.00 Profile: 7 (2 points) 435.00 200.00 Profile: 8 (2 points) 435.00 152.00 Profile: 9 (2 points) 435.00 150.00 Profile: 10 (2 points) 435.00 100.00 Profile: 11 (2 points) 432.00 97.00 Slope Surface (4 points) 0.00 100.00 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 432.00 Material beneath: 435.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 200.00 6 - Clay 152.00 2 - Sand and Gravel 150.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 152.00 2 - Sand and Gravel 150.00 3 - Weathered Bedrock 100.00' 4 - Stable Bedrock 97.00 100.00 100.00 400.00 200.00 370.00 190.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 102.50 YL: 100.83 XR: 460.00 YR: Centre: XC: 191.07 YC: 475.51 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 5.00 2D XR 30.00 20 R 20.00 50 RESULTS: Analysis 1 - Case 5 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface 515.00 200.00 515.00 190.00 200.00 385.00 Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.379 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.30 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 102.50 100.83 460.00 200.00 191.07 475.51 385.00 1.303 <-- Critical Surface 2 102.50 100.83 460.00 200.00 191.20 475.06 384.59 1.304 3 102.50 100.83 460.00 200.00 191.32 474.61 384.18 1.305 4 102.50 100.83 460.00 200.00 191.45 474.16 383.78 1.305 5 102.50 100.83 460.00 200.00 191.57 473.71 383.37 1.306 6 102.24 100.75 460.00 200.00 190.95 475.39 385.00 1.306 7 102.50 100.83 460.00 200.00 191.70 473.26 382.96 1.306 8 102.24 100.75 460.00 200.00 191.07 474.94 384.59 1.307 9 102.50 100.83 460.00 200.00 191.82 472.81 382.55 1.307 10 102.24 100.75 460.00 200.00 191.20 474.49 384.18 1.307 11 102.50 100.83 460.00 200.00 192.82 469.21 379.29 1.308 12 102.24 100.75 460.00 200.00 191.32 474.04 383.78 1.308 13 102.50 100.83 460.00 200.00 191.95 472.36 382.14 1.308 14 102.50 100.83 460.00 200.00 192.70 469.66 379.69 1.308 15 102.24 100.75 460.00 200.00 191.45 473.59 383.37 1.308 16 102.50 100.83 460.00 200.00 192.57 470.11 380.10 1.309 17 102.24 100.75 460.00 200.00 192.45 469.99 380.10 1.309 18 101.97 100.66 460.00 200.00 190.83 475.26 385.00 1.309 19 102.50 100.83 460.00 200.00 192.07 471.91 381.73 1.309 20 102.50 100.83 460.00 200.00 192.45 470.56 380.51 1.309 21 102.24 100.75 460.00 200.00 192.32 470.44 380.51 1.309 22 102.24 100.75 460.00 200.00 191.57 473.14 382.96 1.309 23 101.97 100.66 460.00 200.00 190.95 474.82 384.59 1.309 24 102.50 100.83 460.00 200.00 192.20 471.46 381.33 1.309 25 102.50 100.83 460.00 200.00 192.32 471.01 380.92 1.309 26 102.24 100.75 460.00 200.00 192.20 470.89 380.92 1.310 27 101.97 100.66 460.00 200.00 192.07 470.77 380.92 1.310 28 102.50 100.83 463.16 200.00 193.61 474.90 385.00 1.310 29 101.97 100.66 460.00 200.00 191.08 474.37 384.18 1.310 30 102.24 100.75 460.00 200.00 191.70 472.69 382.55 1.310 31 102.24 100.75 460.00 - 200.00 192.07 471.34 381.33 1.310 32 101.97 100.66 460.00 200.00 191.95 471.22 381.33 1.310 33 102.50 100.83 461.58 200.00 192.96 472.95 382.96 1.310 34 102.24 100.75 460.00 200.00 191.95 471.79 381.73 1.310 35 101.97 100.66 460.00 200.00 191.20 473.92 383.78 1.310 36 101.97 100.66 460.00 200.00 191.82 471.67 381.73 1.310 37 101.71 100.57 460.00 200.00 191.70 471.55 381.73 1.311 38 102.24 100.75 461.58 200.00 192.72 473.28 383.37 1.311 39 102.24 100.75 460.00 200.00 191.82 472.24 382.14 1.311 40 102.50 100.83 461.58 200.00 192.84 473.40 383.37 1.311 41 101.97 100.66 460.00 200.00 191.70 472.12 382.14 1.311 42 101.71 100.57 460.00 200.00 191.58 472.00 382.14 1.311 43 101.97 100.66 461.58 200.00 192.47 473.61 383.78 1.311 44 101.97 100.66 460.00 200.00 191.33 473.47 383.37 1.311 45 102.24 100.75 461.58 200.00 192.59 473.73 383.78 1.311 46 101.71 100.57 460.00 200.00 190.70 475.14 385.00 1.311 47 102.50 100.83 461.58 200.00 192.72 473.85 383.78 1.311 48 101.97 100.66 460.00 200.00 191.57 472.57 382.55 1.311 49 101.71 100.57 460.00 200.00 191.45 472.45 382.55 1.311 50 101.45 100.48 460.00 200.00 191.33 472.32 382.55 1.312 51 101.97 100.66 461.58 200.00 192.34 474.06 384.18 1.312 52 102.24 100.75 461.58 200.00 192.47 474.18 384.18 1.312 53 102.50 100.83 461.58 200.00 192.59 474.30 384.18 1.312 54 101.71 100.57 460.00 200.00 190.83 474.69 384.59 1.312 55 101.97 100.66 460.00 200.00 191.45 473.02 382.96 1.312 56 101.71 100.57 460.00 200.00 191.33 472.90 382.96 1.312 57 101.45 100.48 460.00 200.00 191.20 472.77 382.96 1.312 58 101.71 100.57 461.58 200.00 192.10 474.39 384.59 1.312 59 102.50 100.83 460.00 200.00 192.95 468.76 378.88 1.312 60 101.97 100.66 461.58 200.00 192.22 474.51 384.59 1.312 61 102.24 100.75 461.58 200.00 192.34 474.63 384.59 1.312 62 101.71 100.57 460.00 200.00 191.20 473.35 383.37 1.312 63 101.45 100.48 460.00 200.00 191.08 473.22 383.37 1.312 64 101.71 100.57 460.00 200.00 190.95 474.25 384.18 1.312 65 101.18 100.39 460.00 200.00 190.96 473.10 383.37 1.312 66 102.50 100.83 460.00 200.00 193.07 468.31 378.47 1.313 67 101.71 100.57 461.58 200.00 191.97 474.84 385.00 1.313 68 101.71 100.57 460.00 200.00 191.08 473.80 383.78 1.313 69 101.97 100.66 461.58 200.00 192.10 474.96 385.00 1.313 70 101.45 100.48 460.00 200.00 190.95 473.67 383.78 1.313 71 101.18 100.39 460.00 200.00 190.83 473.55 383.78 1.313 72 102.50 100.83 460.00 200.00 193.20 467.85 378.06 1.313 73 102.50 100.83 461.58 200.00 192.34 475.20 385.00 1.313 74 102.24 100.75 460.00 200.00 192.57 469.54 379.69 1.313 75 101.45 100.48 460.00 200.00 190.83 474.12 384.18 1.313 76 101.18 100.39 460.00 200.00 190.71 474.00 384.18 1.313 77 102.50 100.83 461.58 200.00 193.21 472.05 382.14 1.314 78 102.24 100.75 460.00 200.00 192.70 469.09 379.29 1.314 79 101.45 100.48 460.00 200.00 190.58 475.02 385.00 1.314 80 101.18 100.39 460.00 200.00 190.58 474.45 384.59 1.314 81 101.45 100.48 460.00 200.00 190.70 474.57 384.59 1.314 82 100.92 100.31 460.00 200.00 190.46 474.33 384.59 1.314 83 102.50 100.83 461.56 200.00 192.47 474.75 384.59 1.314 64 102.24 100.75 460.00 200.00 192.82 468.63 378.88 1.314 85 102.50 100.83 461.58 200.00 193.09 472.50 382.55 1.314 66 100.92 100.31 460.00 200.00 190.33 474.78 385.00 1.314 87 101.97 100.66 460.00 200.00 192.20 470.32 380.51 1.314 88 101.18 100.39 460.00 200.00 190.46 474.90 385.00 1.314 89 102.50 100.83 463.16 200.00 193.73 474.45 384.59 1.315 90 101.97 100.66 460.00 200.00 192.32 469.87 380.10 1.315 91 102.24 100.75 461.58 200.00 192.64 472.83 382.96 1.315 92 102.50 100.83 463.16 200.00 193.86 474.00 384.18 1.315 93 101.97 100.66 460.00 200.00 192.45 469.41 379.69 1.315 94 101.71 100.57 460.00 200.00 191.83 471.10 381.33 1.316 95 102.24 100.75 461.58 200.00 192.22 475.08 385.00 1.316 96 101.71 100.57 460.00 200.00 191.95 470.65 380.92 1.316 97 102.24 100.75 463.16 200.00 193.49 474.78 385.00 1.316 98 101.71 100.57 460.00 200.00 192.08 470.19 380.51 1.316 99 102.50 100.83 460.00 200.00 193.32 467.40 377.65 1.317 Critical Failure Surface (circle 1) Intersects: XL: 102.50 YL: 100.83 XR: 460.00 YR: 200.00 Centre: XC: 191.07 YC: 475.51 Radius: R: 385.00 Generated failure surface: (20 points) 102.50 100.83 122.44 96.67 142.58 93.57 162.85 91.54 183.19 90.59 203.57 90.71 223.90 91.91 244.15 94.18 264.24 97.52 284.13 101.92 303.76 107.37 323.08 113.84 342.02 121.33 360.54 129.81 378.59 139.26 396.11 149.65 413.06 160.95 429.39 173.13 445.05 186.16 460.00 200.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 44 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 102.50 4.32 -11.8 3.99 4.08 2 0.00 35.0 540.42 275.59 143.85 1.15 2 106.49 29.57 -11.8 7.19 7.34 3 100.00 18.0 3782.78 1885.03 557.80 1.08 3 113.68 57.59 -11.8 7.19 7.34 3 100.00 18.0 7457.29 3670.84 1083.58 1.08 4 120.87 16.28 -11.8 1.57 1.60 4 2000.00 20.0 2114.53 1037.82 1731.77 1.08 5 122.44 133.50 -8.8 10.07 10.19 4 2000.00 20.0 17347.71 8428.28 2010.32 1.06 6 132.51 182.88 -8.8 10.07 10.19 4 2000.00 20.0 23770.57 11546.26 2663.23 1.06 142.58 231.24 -5.7 10.13 10.19 4 2000.00 70.0 30028.98 14501.33 3165.38 1.03 8 152.71 275.76 -5.7 10.13 10.19 4 2000.00 20.0 35759.71 17293.83 3739.20 1.03- 9 162.85 318.88 -2.7 10.17 10.19 4 2000.00 20.0 41275.43 19919.69 4157.69 1.01 10 173.02 358.25 -2.7 10.17 10.19 4 2000.00 20.0 46274.18 22379.15 4652.32 1.01 11 183.19 395.32 0.3 10.19 10.19 4 2000.00 20.0 50943.49 24668.12 4988.11 1.00 12 193.38 429.27 0.3 10.19 10.19 4 2000.00 20.0 55178.41 26787.20 5403.55 1.00 13 203.57 459.67 3.4 10.17 10.19 4 2000.00 20.0 58921.60 28733.29 5657.61 0.99 14 213.73 488.03 3.4 10.17 10.19 4 2000.00 20.0 62369.53 30506.29 5994.04 0.99 15 223.90 511.27 6.4 10.12 10.19 4 2000.00 20.0 65127.76 32104.07 6167.35 0.98 16 234.02 533.92 6.4 10.12 10.19 4 2000.00 20.0 67774.48 33526.09 6425.12 0.98 17 244.15 318.21 9.4 5.85 5.93 4 2000.00 20.0 40276.05 20129.06 6481.24 0.97 18 250.00 332.08 9.4 6.00 6.08 4 2000.00 20.0 41896.91 21006.06 6582.44 0.97 19 256.00 286.84 9.4 5.10 5.17 4 2000.00 20.0 36083.84 18144.80 6676.86 0.97 20 261.10 179.08 9.4 3.14 3.19 3 100.00 18.0 22490.85 11327.74 6998.53 0.97 21 264.24 648.00 12.5 11.20 11.47 3 100.00 18.0 81109.57 41412.18 7035.54 0.97 22 275.44 512.42 12.5 8.69 8.90 2 0.00 35.0 63966.21 32748.04 6970.03 0.92 23 284.13 586.25 15.5 9.81 10.19 2 0.00 35.0 73182.73 37963.12 6972.59 0.90 24 293.95 591.64 15.5 9.82 10.19 2 0.00 35.0 73856.63 38312.24 7036.77 0.90 25 303.76 584.70 18.5 9.66 10.19 2 0.00 35.0 72990.35 38481.14 6981.05 0.69 26 313.42 584.51 18.5 9.66 10.19 2 0.00 35.0 72967.62 38469.17 6978.88 0.89 27 323.08 570.46 21.6 9.47 10.19 2 0.00 35.0 71212.25 38276.34 6859.23 0.69 26 332.55 564.90 21.6 9.47 10.19 2 0.00 35.0 70517.58 37903.44 6792.33 0.89 29 342.02 544.25 24.6 9.26 10.19 2 0.00 35.0 67938.03 37350.89 6611.51 0.68 30 351.28 533.57 24.6 9.26 10.19 2 0.00 35.0 66603.30 36618.08 6481.64 0.68 31 360.54 530.84 27.6 9.46 10.67 2 0.00 35.0 66260.29 37368.54 6238.00 0.68 32 370.00 467.58 27.6 8.59 9.70 2 0.00 35.0 58361.43 32066.40 6027.47 0.88 33 378.59 459.69 30.7 8.76 10.19 2 0.00 35.0 57373.65 30599.05 5692.23 0.88 34 387.35 439.77 30.7 8.76 10.19 2 0.00 35.0 54883.26 27297.54 5398.33 0.88 35 396.11 170.92 33.7 3.53 4.24 6 50.00 16.0 21344.49 10361.43 5568.77 1.05 36 399.64 307.12 33.7 6.71 8.07 2 0.00 35.0 38390.36 18000.66 4800.16 0.88 37 406.35 277.09 33.7 6.71 8.07 2 0.00 35.0 34636.18 15748.34 4314.66 0.88 36 413.06 293.93 36.7 8.16 10.19 2 0.00 35.0 36740.70 16527.82 3677.05 0.89 39 421.23 244.20 36.7 8.16 10.19 2 0.00 35.0 30525.10 12656.47 3024.76 0.89 40 429.39 67.27 39.8 2.61 3.39 2 0.00 35.0 8408.56 3342.47 2531.48 0.90 41 432.00 70.35 39.8 3.00 3.90 5 0.00 45.0 7738.14 3275.04 1901.37 0.79 42 435.00 181.12 39.8 10.05 13.07 2 0.00 35.0 22639.87 6543.14 1711.28 0.90 43 445.05 49.43 42.8 4.15 5.65 2 0.00 35.0 6178.20 676.77 1034.83 0.91 44 449.20 54.01 42.8 10.80 14.72 2 0.00 35.0 6751.40 0.00 417.41 0.91 X -S Area: 14875.96 Path Length: 387.05 X -S Weight: 1873990.25 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 5 Full EQ.gmf Processed: 30 Jul 2019 13:51:28 DATA: Analysis 1 - Case 5 - Full Reservoir EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 200.00 Profile: 2 (2 points) 0.00 152.00 Profile: 3 (2 points) 0.00 150.00 Profile:. -4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 points) 432.00 200.00 Profile: 7 (2 points) 435.00 200.00 Profile: 8 (2 points) 435.00 152.00 Profile: 9 (2 points) 435.00 150.00 Profile: 10 (2 points) 435.00 100.00 Profile: 11 (2 points) 432.00 97.00 Slope Surface (4 points) 0.00 100.00 - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 432.00 Material beneath: 432.00. Material beneath: 432.00 Materia]. beneath: 432.00 Material beneath: 432.00 Material beneath: 435.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Material beneath: 515.00 Phreatic Surface (4 points) 0.00 190.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 200.00 6 - Clay 152.00 2 - Sand and Gravel 150.00 3.- Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 152.00 2 - Sand and Gravel 150.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 190.00 400.00 200.00 370.00 190.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 460.00 YR: Centre: XC: 187.72 YC: 493.02 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 30.00 20 RESULTS: Analysis 1 - Case 5 - Full Reservoir EQ R 50.00 50 515.00 200.00 515.00 190.00 200.00 400.00 Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.223 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.04 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 460.00 200.00 187.72 493.02 400.00 2.035 <-- Critical Surface 2 105.00 101.67 460.00 200.00 188.02 491.91 398.98 2.040 3 105.00 101.67 460.00 200.00 188.64 489.69 396.94 2.042 4 105.00 101.67 460.00 200.00 188.33 490.80 397.96 2.043 5 105.00 101.67 461.58 200.00 189.00 492.75 400.00 2.045 6 104.47 101.49 460.00 200.00 187.77 491.68 398.98 2.047 7 104.47 101.49 460.00 200.00 187.46 492.79 400.00 2.048 8 105.00 101.67 460.00 200.00 189.25 487.47 394.90 2.050 9 105.00 101.67 460.00 200.00 188.94 488.58 395.92 2.051 10 105.00 101.67 461.58 200.00 189.61 490.53 397.96 2.054 11 105.00 101.67 461.58 200.00 189.31 491.64 398.98 2.055 12 105.00 101.67 460.00 200.00 189.56 486.36 393.88 2.055 13 105.00 101.67 463.16 200.00 190.89 490.25 397.96 2.056 14 105.00 101.67 463.16 200.00 190.59 491.36 398.98 2.056 15 104.47 101.49 460.00 200.00 188.08 490.57 397.96 2.057 16 105.00 101.67 460.00 200.00 190.49 483.02 390.82 2.058 17 105.00 101.67 463.16 200.00 190.28 492.47 400.00 2.058 18 105.00 101.67 461.58 200.00 190.53 487.19 394.90 2.059 19 105.00 101.67 461.58 200.00 189.92 489.42 396.94 2.059 20 105.00 101.67 460.00 200.00 190.18 484.13 391.84 2.059 21 104.47 101.49 461.58 200.00 188.75 492.51 400.00 2.059 22 104.47 101.49 460.00 200.00 188.39 489.46 396.94 2.061 23 104.47 101.49 460.00 200.00 188.69 486.35 395.92 2.061 24 105.00 101.67 460.00 200.00 189.87 485.25 392.86 2.061 25 103.95 101.32 460.00 200.00 187.21 492.55 400.00 2.062 26 104.47 101.49 463.16 200.00 190.03 492.23 400.00 2.062 27 105.00 101.67 461.58 200.00 190.23 488.30 395.92 2.064 28 104.47 101.49 460.00 200.00 189.93 483.90 391.84 2.064 29 104.47 101.49 461.58 200.00 189.05 491.40 398.98 2.064 30 104.47 101.49 460.00 200.00 189.31 486.12 393.88 2.065 31 104.47 101.49 461.58 200.00 189.97 488.07 395.92 2.065 32 104.47 101.49 460.00 200.00 189.62 485.01 392.86 2.065 33 104.47 101.49 460.00 200.00 189.00 467.24 394.90 2.066 34 103.95 101.32 460.00 200.00 187.52 491.44 398.98 2.066 35 103.95 101.32 460.00 200.00 187.83 490.33 397.96 2.066 36 105.00 101.67 464.74 200.00 191.56 492.19 400.00 2.066 37 105.00 101.67 461.58 200.00 190.84 486.08 393.88 2.066 38 104.47 101.49 461.58 200.00 189.67 489.18 396.94 2.066 39 105.00 101.67 460.00 200.00 190.80 481.90 389.80 2.066 40 105.00 101.67 463.16 200.00 191.20 489.13 396.94 2.067 41 105.00 101.67 464.74 200.00 191.86 491.08 398.98 2.069 42 104.47 101.49 461.58 200.00 189.36 490.29 397.96 2.069 43 105.00 101.67 461.58 200.00 191.15 484.96 392.66 2.070 44 105.00 101.67 460.00 200.00 191.10 480.79 388.78 2.070 45 105.00 101.67 464.74 200.00 192.17 489.96 397.96 2.070 46 103.95 101.32 460.00 200.00 188.44 488.11 395.92 2.070 47 103.95 101.32 460.00 200.00 188.14 489.22 396.94 2.071 48 105.00 101.67 463.16 200.00 191.50 488.02 395.92 2.071 49 103.42 101.14 460.00 200.00 186.96 492.32 400.00 2.072 50 104.47 101.49 463.16 200.00 190.33 491.12 398.98 2.072 51 103.95 101.32 460.00 200.00 189.06 485.89 393.88 2.072 52 103.95 101.32 461.58 200.00 188.50 492.28 400.00 2.072 53 103.95 101.32 461.58 200.00 189.11 490.06 397.96 2.073 54 103.95 101.32 460.00 200.00 188.75 487.00 394.90 2.073 55 105.00 101.67 461.58 200.00 191.45 483.85 391.84 2.073 56 105.00 101.67 464.74 200.00 192.47 488.85 396.94 2.073 57 105.00 101.67 460.00 200.00 191.41 479.67 387.76 2.073 58 105.00 101.67 466.32 200.00 193.44 489.67 397.96 2.074 59 103.95 101.32 461.58 200.00 188.80 491.17 398.98 2.074 60 104.47 101.49 461.58 200.00 190.28 486.95 394.90 2.075 61 104.47 101.49 460.00 200.00 190.24 482.78 390.82 2.075 62 105.00 101.67 463.16 200.00 191.81 486.90 394.90 2.075 63 104.47 101.49 463.16 200.00 190.64 490.01 397.96 2.075 64 105.00 101.67 466.32 200.00 193.14 490.79 398.98 2.076 65 105.00 101.67 466.32 200.00 192.83 491.90 400.00 2.076 66 103.42 101.14 460.00 200.00 187.58 490.10 397.96 2.076 67 105.00 101.67 461.58 200.00 191.76 482.73 390.82 2.076 68 105.00 101.67 464.74 200.00 193.08 486.62 394.90 2.076 69 103.42 101.14 460.00 200.00 187.27 491.21 398.98 2.076 70 105.00 101.67 464.74 200.00 192.78 487.73 395.92 2.077 71 103.42 101.14 461.56 200.00 188.55 490.93 398.98 2.077 72 105.00 101.67 460.00 200.00 191.72 478.55 386.73 2.077 73 104.47 101.49 464.74 200.00 191.31 491.95 400.00 2.078 74 103.42 101.14 461.56 200.00 188.25 492.04 400.00 2.078 75 104.47 101.49 461.58 200.00 190.59 485.84 393.88 2.078 76 104.47 101.49 460.00 200.00 190.55 481.67 389.80 2.078 77 103.42 101.14 460.00 200.00 188.50 486.76 394.90 2.078 78 105.00 101.67 463.16 200.00 192.12 485.79 393.88 2.079 79 103.42 101.14 460.00 200.00 187.89 488.99 396.94 2.079 80 104.47 101.49 463.16 200.00 190.95 488.90 396.94 2.079 81 103.42 101.14 460.00 200.00 188.19 487.88 395.92 2.079 82 105.00 101.67 461.58 200.00 192.07 481.61 389.80 2.080 83 103.95 101.32 460.00 200.00 189.37 484.77 392.86 2.080 84 103.95 101.32 463.16 200.00 189.78 492.00 400.00 2.080 85 105.00 101.67 460.00 200.00 192.03 477.43 385.71 2.080 86 105.00 101.67 463.16 200.00 193.04 482.44 390.82 2.080 87 103.95 101.32 461.58 200.00 189.42 488.94 396.94 2.080 88 104.47 101.49 464.74 200.00 191.61 490.84 398.98 2.081 89 104.47 101.49 461.58 200.00 190.90 484.72 392.86 2.081 90 104.47 101.49 466.32 200.00 192.58 491.67 400.00 2.081 91 104.47 101.49 460.00 200.00 190.86 480.55 388.78 2.081 92 102.89 100.96 460.00 200.00 186.71 492.08 400.00 2.082 93 104.47 101.49 464.74 200.00 192.53 487.49 395.92 2.082 94 105.00 101.67 463.16 200.00 192.42 484.67 392.86 2.083 95 105.00 101.67 460.00 200.00 192.96 474.07 382.65 2.083 96 104.47 101.49 463.16 200.00 191.25 487.78 395.92 2.083 97 104.47 101.49 464.74 200.00 192.22 488.61 396.94 2.083 98 103.95 101.32 460.00 200.00 189.68 483.66 391.84 2.083 99 105.00 101.67 466.32 200.00 193.75 488.56 396.94 2.083 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 460.00 YR: 200.00 Centre: XC: 187.72 YC: 493.02 Radius: R: 400.00 Generated failure surface: (20 points) 105.00 101.67 124.81 98.00 144.78 95.33 164.86 93.67 184.99 93.03 205.13 93.40 225.23 94.78 245.23 97.18 265.09 100.58 284.75 104.97 304.17 110.35 323.29 116.70 342.06 124.00 360.45 132.24 378.39 141.39 395.85 151.44 412.79 162.35 429.15 174.10 444.90 186.66 460.00 200.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 21.00 -10.5 9.00 9.15 2 0.00 35.0 2625.08 50928.40 720.01 1.09 2 114.00 80.73 -10.5 10.81 10.99 3 100.00 18.0 10264.66 62421.75 186.13 1.05 3 124.81 89.85 -7.6 7.48 7.54 3 100.00 18.0 11530.83 43542.52 588.27 1.03. 4 132.29 95.06 -7.6 6.25 6.30 4 2000.00 20.0 12223.80 36730.18 995.72 1.03 5 138.53 113.27 -7.6 6.25 6.30 4 2000.00 20.0 14583.47 37057.98 248.42 1.03 6 144.78 217.65 -4.7 10.04 10..07 4 2000.00 20.0 28022.81 59763.69 475.58 1.02 7 154.82 259.56 -4.7 10.04 10.07 4 2000.00 20.0 33394.91 60284.68 806.02 1.02 8 164.86 299.85 -1.8 10.07 10.07 4 2000.00 20.0 38525.51 60646.40 031.90 1.01 9 174.92 336.88 -1.8 10.07 10.07 4 2000.00 20.0 43206.20 60848.85 288.77 1.01 10 184.99 371.49 1.1 10.07 10.07 4 2000.00 20.0 47543.95 60892.01 438.33 1.00 11 195.06 403.43 1.1 10.07 10.07 4 2000.00 20.0 51507.34 60775.69 621.74 1.00 12 205.13 431.84 3.9 10.05 10.07 4 2000.00 20.0 54985.45 60500.16 695.64 0.99 13 215.18 458.55 3.9 10.05 10.07 4 2000.00 20.0 58212.71 60065.19 805.88 0.99 14 225.23 443.91 6.8 9.26 9.32 4 2000.00 20.0 56178.77 55075.99 803.50 0.99 15 234.49 462.22 6.8 9.26 9.32 4 2000.00 20.0 58303.68 54431.35 838.23 0.99 16 243.75 75.96 6.8 1.49 1.50 3 100.00 18.0 9563.72 8683.51 974.91 0.99 17 245.23 246.01 9.7 4.77 4.84 3 100.00 18.0 30935.35 27882.14 941.55 0.99 18 250.00 314.96 9.7 6.00 6.09 3 100.00 18.0 39483.18 34752.95 918.06 0.99 19 256.00 305.99 9.7 5.73 5.81 3 100.00 18.0 38236.26 32798.80 892.92 0.99 20 261.73 182.37 9.7 3.37 3.41 2 0.00 35.0 22762.76 19116.50 791.78 0.96 21 265.09 540.62 12.6 9.83 10.07 2 0.00 35.0 67479.02 55516.82 699.13 0.95 22 274.92 551.24 12.6 9.63 10.07 2 0.00 35.0 68806.43 54136.23 624.84 0.95 23 284.75 552.23 15.5 9.71 10.07 2 0.00 35.0 68931.85 52600.61 464.25 0.95 24 294.46 557.54 15.5 9.71 10.07 2 0.00 35.0 69595.68 50910.68 327.72 0.95 25 304.17 551.73 18.4 9.56 10.07 2 0.00 35.0 68870.82 49067.98 104.86 0.95 26 313.73 551.85 18.4 9.56 10.07 2 0.00 35.0 68885.55 47072.80 907.48 0.95 27 323.29 539.53 21.3 9.39 10.07 2 0.00 35.0 67347.38 44927.66 624.58 0.95 28 332.67 534.63 21.3 9.39 10.07 2 0.00 35.0 66734.50 42632.52 367.89 0.95 29 342.06 516.23 24.1 9.19 10.07 2 0.00 35.0 64436.57 40190.33 027.32 0.95 30 351.25 506.52 24.1 9.19 10.07 2 0.00 35.0 63223.54 37600.88 713.00 0.95 31 360.45 513.38 27.0 9.55 10.73 2 0.00 35.0 64077.46 37028.12 305.31 0.96 32 370.00 437.58 27.0 8.39 9.42 2 0.00 35.0 54614.15 29830.54 009.47 0.96 33 378.39 377.79 29.9 7.48 8.63 2 0.00 35.0 47148.99 25019.15 740.15 0.96 34 385.87 364.25 29.9 7.48 8.63 2 0.00 35.0 45456.18 22701.24 506.88 0.96 35 393.35 118.71 29.9 2.50 2.88 6 50.00 16.0 14822.47 7069.73 655.04 1.07 36 395.85 192.95 32.8 4.15 4.93 2 0.00 35.0 24119.36 11458.47 182.81 0.97 37 400.00 280.24 32.8 6.39 7.61 2 0.00 35.0 35029.92 16056.95 867.57 0.97 38 406.39 253.89 32.8 6.39 7.61 2 0.00 35.0 31736.70 14101.20 399.34 0.97 39 412.79 283.99 35.7 8.18 10.07 2 0.00 35.0 35499.17 15532.13 784.80 0.99 40 420.97 235.92 35.7 8.18 10.07 2 0.00 35.0 29490.16 11839.01 123.20 0.99 41 429.15 70.55 38.6 2.85 3.64 2 0.00 35.0 8818.42 3356.60 627.18 1.00 42 432.00 67.29 38.6 3.00 3.84 5 0.00 45.0 7401.73 2976.04 991.05 0.92 43 435.00 171.16 38.6 9.90 12.66 2 0.00 35.0 21394.39 5757.36 793.39 1.00 44 444.90 44.08 41.5 3.78 5.04 2 0.00 35.0 5510.31 524.86 142.90 1.02 45 446.68 56.60 41.5 11.32 15.10 2 0.00 35.0 7075.19 0.00 479.33 1.02 X -S Area: 14081.07 Path Length: 382.77 X -S Weight: 1768596.38 GALENA 7.2 Analysis Results Version: 7.20.7.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 6 RD EQ.gmf Processed: 30 Jul 2019 14:34:06 DATA: Analysis 1 - Case 6 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable - Slurry - Clay - Silt Bedrock Wall Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 180.00 Profile: 2 (2 points) 0.00 153.00 Profile: 3 (2 points) 0.00 150.00 Profile: 4 (2 points) 0.00 145.00 Profile: 5 (2 points) 0.00 127.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 402.00 180.00 Profile: 9 (2 points) 405.00 180.00 Profile: 10 (2 points) 405.00 153.00 Profile: 11 (2 points) 405.00 150.00 Profile: 12 (2 points) 405.00 145.00 Profile: 13 (2 points) 405.00 127.00 Profile: 14 (2 points) 405.00 100.00 Profile: 15 (2 points) 402.00 97.00 Slope Surface (4 points) 0.00 100.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 405.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 2 - Sand and Gravel 180.00 6 - Clay 153.00 2 - Sand and Gravel 150.00 6 - Clay 145.00 2 - Sand and Gravel 127.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 180.00 2 - Sand and Gravel 180.00 6 — Clay 153.00 2 - Sand and Gravel 150.00 6 - Clay 145.00 2 - Sand and Gravel 127.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 130.00 100.00 130.00 100.00 370.00 180.00 346.00 172.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 135.00 YL: 101.67 XR: 435.00 Centre: XC: 211.40 YC: 422.70 Radius: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.071 Variable Restraints Parameter descriptor: XL XR R YR: R: 500.00 180.00 500.00 172.00 180.00 330.00 Range of variation: 10.00 60.00 10.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 6 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.553 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.31 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 135.00 101.67 435.00 180.00 211.40 422.70 330.00 1.313 <-- Critical Surface 2 135.00 101.67 435.00 180.00 211.46 422.48 329.80 1.314 3 135.00 101.67 435.00 180.00 211.52 422.25 329.59 1.315 4 135.00 101.67 435.00 180.00 211.58 422.03 329.39 1.316 5 135.00 101.67 435.00 180.00 211.64 421.81 329.18 1.317 6 135.00 101.67 435.00 180.00 212.16 419.79 327.35 1.318 7 135.00 101.67 435.00 180.00 212.10 420.01 327.55 1.318 8 135.00 101.67 435.00 180.00 212.04 420.24 327.76 1.318 9 135.00 101.67 435.00 180.00 211.99 420.46 327.96 1.318 10 135.00 101.67 435.00 180.00 211.69 421.58 328.98 1.319 11 135.00 101.67 435.00 180.00 211.75 421.36 328.78 1.320 12 135.00 101.67 435.00 180.00 211.81 421.13 328.57 1.320 13 135.00 101.67 435.00 180.00 211.87 420.91 328.37 1.320 14 135.00 101.67 435.00 180.00 211.93 420.69 328.16 1.321 15 134.47 101.49 435.00 180.00 211.43 421.34 328.98 1.323 16 134.47 101.49 435.00 180.00 211.38 421.57 329.18 1.323 17 134.47 101.49 435.00 180.00 211.32 421.79 329.39 1.323 18 135.00 101.67 435.00 180.00 212.22 419.57 327.14 1.324 19 135.00 101.67 435.00 180.00 212.28 419.34 326.94 1.325 20 134.47 101.49 435.00 180.00 211.14 422.46 330.00 1.326 21 135.00 101.67 435.00 180.00 212.34 419.12 326.73 1.326 22 134.47 101.49 435.00 180.00 211.20 422.24 329.80 1.326 23 134.47 _ 101.49 435.00 180.00 211.26 422.01 329.59 1.326 24 135.00 101.67 435.00 180.00 212.40 418.89 326.53 1.326 25 135.00 101.67 435.00 180.00 212.45 418.67 326.33 1.327 26 135.00 101.67 435.00 180.00 212.51 418.44 326.12 1.328 27 135.00 101.67 435.00 180.00 212.57 418.22 325.92 1.329 28 134.47 101.49 435.00 180.00 211.49 421.12 328.78 1.329 29 135.00 101.67 435.00 180.00 212.63 417.99 325.71 1.329 30 134.47 101.49 435.00 180.00 211.55 420.89 328.57 1.330 31 135.00 101.67 435.00 180.00 212.69 417.77 325.51 1.330 32 134.47 101.49 435.00 180.00 211.61 420.67 328.37 1.330 33 135.00 101.67 435.00 180.00 212.75 417.55 325.31 1.331 34 134.47 101.49 435.00 180.00 211.67 420.45 328.16 1.331 35 135.00 101.67 435.00 180.00 212.81 417.32 325.10 1.332 36 134.47 101.49 435.00 180.00 211.73 420.22 327.96 1.332 37 135.00 101.67 435.00 180.00 212.86 417.10 324.90 1.332 38 134.47 101.49 435.00 180.00 211.79 420.00 327.76 1.333 39 135.00 101.67 435.00 180.00 212.92 416.87 324.69 1.333 40 134.47 101.49 435.00 180.00 211.84 419.77 327.55 1.333 41 135.00 101.67 435.00 180.00 212.98 416.65 324.49 1.334 42 134.47 101.49 435.00 180.00 211.90 419.55 327.35 1.334 43 135.00 101.67 435.00 180.00 213.04 416.42 324.29 1.335 44 134.47 101.49 435.00 180.00 211.96 419.32 327.14 1.335 45 133.95 101.32 435.00 180.00 210.88 422.22 330.00 1.335 46 135.00 101.67 435.00 180.00 213.10 416.20 324.08 1.335 47 134.47 101.49 435.00 180.00 212.02 419.10 326.94 1.336 48 133.95 101.32 435.00 180.00 210.94 422.00 329.80 1.336 49 135.00 101.67 435.00 180.00 213.16 415.97 323.88 1.336 50 134.47 101.49 435.00 180.00 212.08 418.88 326.73 1.336 51 133.95 101.32 435.00 180.00 211.00 421.77 329.59 1.337 52 134.47 101.49 435.00 180.00 212.14 416.65 326.53 1.337 53 135.00 101.67 435.00 180.00 213.22 415.75 323.67 1.337 54 133.95 101.32 435.00 180.00 211.06 421.55 329.39 1.338 55 134.47 101.49 435.00 180.00 212.20 418.43 326.33 1.338 56 135.00 101.67 435.00 180.00 213.28 415.52 323.47 1.338 57 133.95 101.32 435.00 180.00 211.12 421.33 329.18 1.338 58 134.47 101.49 435.00 180.00 212.25 418.20 326.12 1.339 59 135.00 101.67 435.00 180.00 213.33 415.30 323.27 1.339 60 133.95 101.32 435.00 180.00 211.18 421.10 328.98 1.339 61 134.47 101.49 435.00 180.00 212.31 417.98 325.92 1.339 62 135.00 101.67 435.00 180.00 213.39 415.07 323.06 1.340 63 135.00 101.67 435.00 180.00 213.92 413.04 321.22 1.340 64 133.95 101.32 435.00 180.00 211.23 420.88 328.78 1.340 65 135.00 101.67 435.00 180.00 213.86 413.27 321.43 1.340 66 135.00 101.67 435.00 180.00 213.80 413.50 321.63 1.340 67 135.00 101.67 435.00 180.00 213.75 413.72 321.84 1.340 68 135.00 101.67 435.00 180.00 213.69 413.95 322.04 1.340 69 134.47 101.49 435.00 160.00 212.37 417.75 325.71 1.340 70 135.00 101.67 435.00 100.00 213.63 414.17 322.24 1.340 71 135.00 101.67 435.00 160.00 213.57 414.40 322.45 1.340 72 135.00 101.67 435.00 180.00 213.51 414.62 322.65 1.340 73 135.00 101.67 435.00 180.00 213.45 414.85 322.86 1.340 74 133.95 101.32 435.00 180.00 211.29 420.65 328.57 1.340 75 134.47 101.49 435.00 180.00 212.43 417.53 325.51 1.341 76 133.95 101.32 435.00 180.00 211.35 420.43 328.37 1.341 77 134.47 101.49 435.00 180.00 212.49 417.30 325.31 1.342 78 133.95 101.32 435.00 180.00 211.41 420.21 328.16 1.342 79 134.47 101.49 435.00 180.00 212.55 417.08 325.10 1.342 80 133.95 101.32 435.00 180.00 211.47 419.98 327.96 1.343 81 134.47 101.49 435.00 180.00 213.14 414.83 323.06 1.343 82 134.47 101.49 435.00 180.00 212.61 416.85 324.90 1.343 83 134.47 101.49 435.00 180.00 213.08 415.05 323.27 1.343 84 134.47 101.49 435.00 18D.00 213.02 415.28 323.47 1.343 85 134.47 101.49 435.00 180.00 212.96 415.50 323.67 1.343 66 133.95 101.32 435.00 180.00 211.53 419.76 327.76 1.343 87 134.47 101.49 435.0D 180.00 212.90 415.73 323.88 1.343 88 134.47 101.49 435.00 180.00 212.84 415.95 324.08 1.344 89 134.47 101.49 435.00 180.00 212.78 416.18 324.29 1.344 90 134.47 101.49 435.00 180.00 212.72 416.40 324.49 1.344 91 134.47 101.49 435.00 180.00 212.67 416.63 324.69 1.344 92 133.95 101.32 435.00 180.00 211.59 419.53 327.55 1.344 93 133.95 101.32 435.00 180.00 211.64 419.31 327.35 1.345 94 133.95 101.32 435.00 180.00 211.70 419.08 327.14 1.346 95 135.00 101.67 435.00 180.00 213.98 412.82 321.02 1.346 96 133.42 101.14 435.00 180.00 210.62 421.98 330.00 1.346 97 135.00 101.67 438.16 180.00 213.90 422.09 330.00 1.346 98 135.00 101.67 435.00 180.00 214.04 412.59 320.82 1.346 99 133.95 101.32 435.00 180.00 211.76 418.86 326.94 1.346 Critical Failure Surface (circle 1) Intersects: XL: 135.00 YL: 101.67 XR: 435.00 YR: 180.00 Centre: XC: 211.40 YC: 422.70 Radius: R: 330.00 Generated failure surface: (20 points) 135.00 101.67 151.62 98.16 168.40 95.51 185.29 93.74 202.25 92.83 219.24 92.79 236.20 93.63 253.10 95.35 269.89 97.93 286.53 101.37 302.96 105.66 319.16 110.79 335.06 116.75 350.64 123.51 365.85 131.08 380.65 139.41 395.01 148.49 408.87 158.30 422.22 168.82 435.00 180.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) Slice - X -S Base PoreWater Normal Test X -Left Area Angle Width L ngth Matl Cohesion Phi Weight Force Stress Factor 1 135.00 16.99 -11.9 .90 .07 2 0.00 35.0 2123.51 1083.39 285.83 1.15 2 142.90 58.19 -11.9 .72 .91 3 100.00 18.0 7401.73 3710.80 889.63 1.08 3 151.62 79.87 -9.0 .36 .45 3 100.00 18.0 10268.87 5045.59 1437.00 1.05 4 158.98 141.03 -9.0 .42 .54 4 2000.00 20.0 18192.81 8909.04 2228.18 1.06 5 168.40 161.64 -6.0 .45 .49 4 2000.00 20.0 20871.77 10142.37 2674.72 1.04 6 176.85 192.94 -6.0 .45 .49 4 2000.00 20.0 24903.81 12105.95 3159.49 1.04 7 185.29 223.35 -3.1 .48 .49 4 2000.00 20.0 28799.90 13957.12 3504.94 1.02 8 193.77 251.18 -3.1 .48 .49 4 2000.00 20.0 32339.56 15695.65 3925.51 1.02 9 202.25 286.21 -0.1 .75 .75 4 2000.00 20.0 36781.47 17859.68 4209.54 1.00 10 211.00 293.09 -0.1 .24 .24 4 2000.00 20.0 37528.85 18288.97 4559.02 1.00 11 219.24 323.67 2.8 .48 .49 4 2000.00 20.0 41231.59 20221.65 4752.69 0.99 12 227.72 344.09 2.8 .48 .49 4 2000.00 20.0 43607.34 21497.52 5031.00 0.99 13 236.20 361.21 5.8 .45 .49 4 2000.00 20.0 45539.59 22654.92 5165.00 0.98 14 244.65 377.78 5.8 .45 .49 4 2000.00 20.0 47375.56 23693.91 5379.68 0.98 15 253.10 248.47 8.7 .38 .44 4 2000.00 20.0 31021.46 15686.15 5422.49 0.97 16 258.49 253.67 8.7 .38 .44 4 2000.00 20.0 31552.36 16014.62 5519.59 0.97 17 263.87 290.26 8.7 .03 .10 3 100.00 18.0 35984.96 18324.87 5851.20 0.97 18 269.89 245.82 11.7 .01 .12 3 100.00 18.0 30401.59 15664.06 5901.52 0.97 19 274.91 249.01 11.7 .01 .12 3 100.00 18.0 30716.28 15866.88 5963.11 0.97 20 279.92 332.84 11.7 .60 .74 2 0.00 35.0 40974.53 21208.43 5699.83 0.92 21 286.53 125.84 14.6 .47 .56 2 0.00 35.0 15475.40 8115.64 5882.67 0.91 22 289.00 357.73 14.6 .98 .22 2 0.00 35.0 43983.27 23070.80 5920.93 0.91 23 295.98 361.25 14.6 .98 .22 2 0.00 35.0 44423.46 23297.92 5980.09 0.91 24 302.96 421.52 17.6 .10 .49 2 0.00 35.0 51839.94 27592.02 5947.03 0.90 25 311.06 422.60 17.6 .10 .49 2 0.00 35.0 51974.39 27662.42 5962.46 0.90 26 319.16 414.37 20.5 .95 .49 2 0.00 35.0 50960.77 27610.56 5882.01 0.69 27 327.11 411.76 20.5 .95 .49 2 0.00 35.0 50635.16 27437.00 5844.46 0.89 28 335.06 280.72 23.5 .47 .96 2 0.00 35.0 34516.36 19098.96 5726.81 0.89 29 340.53 277.70 23.5 .47 .96 2 0.00 35.0 34138.14 18893.11 5664.20 0.89 30 346.00 233.32 23.5 .64 .06 2 0.00 35.0 28677.52 15629.45 5597.24 0.89 31 350.64 346.74 26.4 .01 .63 2 0.00 35.0 42606.95 22836.00 5415.12 0.88 32 357.65 395.33 26.4 .20 .16 6 50.00 16.0 48638.54 24547.98 5596.42 1.01 33 365.85 195.22 29.4 .15 .76 6 50.00 16.0 24075.74 11808.99 5421.40 1.02 34 370.00 240.17 29.4 .33 .11 6 50.00 16.0 29672.93 14147.44 5195.10 1.02 35 375.33 224.20 29.4 .33 .11 6 50.00 16.0 27755.92 13003.43 4854.12 1.02 36 380.65 333.82 32.3 .83 1 .45 6 50.00 - 16.0 41471.80 19434.18 4329.89 1.04 37 389.49 183.57 32.3 .52 .53 2 0.00 35.0 22863.49 10295.01 3494.23 0.88 38 395.01 65.46 35.3 .13 .61 2 0.00 35.0 8150.21 3701.90 3169.20 0.89 39 397.13 120.84 35.3 .24 .19 6 50.00 16.0 15073.50 6644.23 3227.15 1.06 40 401.37 93.24 35.3 .63 .44 5 0.00 45.0 10255.88 4909.88 2225.55 0.60 41 405.00 89.32 35.3 .87 .74 2 0.00 35.0 11164.73 4459.34 2350.92 0.89 42 408.67 127.21 38.2 .67 .49 2 0.00 35.0 15901.02 5865.26 1882.71 0.90 43 415.54 92.14 38.2 .67 .49 2 0.0D 35.0 11518.12 3079.96 1323.07 0.90 44 422.22 34.91 41.2 3.64 4.84 2 0.00 35.0 4363.76 480.35 849.23 0.91 45 425.86 36.58 41.2 9.14 12.15 2 0.00 35.0 4572.48 0.00 340.97 0.91 X -S Area: 10616.86 Path Length: 322.74 X -S Weight: 1322326.75 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 6 Full EQ.gmf Processed: 30 Jul 2019 15:13:03 DATA: Analysis 1 - Case 6 - Full Reservoir EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 180.00 Profile: 2 (2 points) 0.00 153.00 Profile: 3 (2 points) 0.00 150.00 Profile: 4 (2 points) 0.00 145.00 Profile: 5 (2 points) 0.00 127.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 402.00 180.00 Profile: 9 (2 points) 405.00 180.00 Profile: 10 (2 points) 405.00 153.00 Profile: 11 (2 points) 405.00 150.00 Profile: 12 (2 points) 405.00 145.00 Profile: 13 (2 points) 405.00 127.00 Profile: 14 (2 points) 405.00 100.00 Profile: 15 (2 points) 402.00 97.00 Slope Surface (4 points) Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 402.00 Material beneath: 405.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 Material beneath: 500.00 0.00 100.00 Phreatic Surface (4 points) 0.00 172.00 Failure Surface 130.00 2 - Sand and Gravel 180.00 6 - Clay 153.00 2 - Sand and Gravel 150.00 6 - Clay 145.00 2 - Sand and Gravel 127.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 180.00 2 - Sand and Gravel 180.00 6 - Clay 153.00 2 - Sand and Gravel 150.00 6 - Clay 145.00 2 - Sand and Gravel 127.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 370.00 180.00 130.00 172.00 346.00 172.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 135.00 YL: 101.67 XR: 435.00 YR: Centre: XC: 205.72 YC: 444.45 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints 500.00 180.00 500.00 172.00 180.00 350.00 Parameter descriptor: XL XR R Range of variation: 10.00 60.00 50.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 6 - Full Reservoir EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.426 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.97 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 135.00 101.67 435.00 180.00 205.72 444.45 350.00 1.974 <-- Critical Surface 2 135.00 101.67 435.00 180.00 206.01 443.35 348.98 1.981 3 135.00 101.67 435.00 180.00 206.30 442.24 347.96 1.989 4 135.00 101.67 435.00 180.00 206.59 441.14 346.94 1.998 5 134.47 101.49 435.00 180.00 205.46 444.22 350.00 1.998 6 134.47 101.49 435.00 180.00 205.75 443.12 348.98 2.007 7 135.00 101.67 435.00 180.00 206.87 440.04 345.92 2.008 8 135.00 101.67 435.00 180.00 207.16 438.93 344.90 2.013 9 134.47 101.49 435.00 180.00 206.03 442.01 347.96 2.017 10 135.00 101.67 435.00 180.00 207.74 436.72 342.86 2.018 11 135.00 101.67 435.00 180.00 207.45 437.83 343.88 2.018 12 134.47 101.49 435.00 180.00 206.32 440.91 346.94 2.022 13 135.00 101.67 438.16 180.00 208.27 443.91 350.00 2.023 14 134.47 101.49 435.00 180.00 206.90 436.70 344.90 2.025 15 134.47 101.49 435.00 180.00 206.61 439.80 345.92 2.026 16 133.95 101.32 435.00 180.00 205.19 443.99 350.00 2.026 17 133.95 101.32 435.00 180.00 205.48 442.88 348.98 2.031 18 135.00 101.67 435.00 180.00 208.03 435.61 341.84 2.032 19 133.95 101.32 435.00 180.00 206.06 440.68 346.94 2.033 20 133.95 101.32 435.00 180.00 205.77 441.78 347.96 2.033 21 135.00 101.67 438.16 180.00 208.55 442.81 348.98 2.034 27 134.47 101.49 435.00 180.00 207.19 437.59 343.88 2.040 23 133.42 101.14 435.00 180.00 204.93 443.76 350.00 2.041 24 135.00 101.67 435.00 180.00 208.32 434.50 340.82 2.042 25 135.00 101.67 438.16 180.00 208.84 441.70 347.96 2.044 26 134.47 101.49 43.8.16 180.00 208.00 443.68 350.00 2.047 27 133.95 101.32 435.00 180.00 206.35 439.57 345.92 2.048 28 135.00 101.67 435.00 180.00 208.61 433.39 339.60 2.048 29 134.47 101.49 435.00 180.00 207.48 436.49 342.86 2.049 30 135.00 101.67 438.16 180.00 209.12 440.59 346.94 2.050 31 133.42 101.14 435.00 180.00 205.22 442.65 348.98 2.050 32 133.95 101.32 435.00 180.00 206.64 436.47 344.90 2.053 33 135.00 101.67 435.00 180.00 208.90 432.28 338.78 2.054 34 134.47 101.49 435.00 160.00 207.77 435.38 341.84 2.055 35 133.42 101.14 435.00 180.00 205.51 441.55 347.96 2.056 36 135.00 101.67 438.16 180.00 209.41 439.49 345.92 2.056 37 134.47 101.49 438.16 180.00 208.29 442.58 348.98 2.057 36 135.00 101.67 435.00 180.00 209.19 431.17 337.76 2.060 39 134.47 101.49 435.00 180.00 208.06 434.27 340.82 2.061 40 133.42 101.14 435.00 180.00 205.80 440.45 346.94 2.061 41 135.00 101.67 438.16 180.00 209.70 438.38 344.90 2.062 42 133.95 101.32 435.00 160.00 206.93 437.36 343.86 2.063 43 134.47 101.49 438.16 180.00 208.57 441.47 347.96 2.063 44 132.89 100.96 435.00 180.00 204.67 443.53 350.00 2.064 45 135.00 101.67 435.00 180.00 209.48 430.06 336.73 2.066 46 134.47 101.49 435.00 180.00 208.35 433.16 339.80 2.067 47 133.95 101.32 435.00 180.00 207.22 436.25 342.86 2.068 48 135.00 101.67 438.16 180.00 209.98 437.27 343.88 2.068 49 134.47 101.49 438.16 180.00 208.86 440.36 346.94 2.069 50 132.89 100.96 435.00 180.00 204.96 442.42 348.98 2.069 51 133.95 101.32 438.16 180.00 207.74 443.45 350.00 2.070 52 133.42 101.14 435.00 160.00 206.09 439.34 345.92 2.070 53 135.00 101.67 435.00 180.00 209.77 428.95 335.71 2.072 54 134.47 101.49 435.00 180.00 208.64 432.05 338.78 2.073 55 133.95 101.32 435.00 180.00 207.51 435.14 341.84 2.074 56 132.89 100.96 435.00 180.00 205.24 441.32 347.96 2.074 57 135.00 101.67 438.16 180.00 210.27 436.16 342.86 2.074 58 134.47 101.49 438.16 180.00 209.15 439.25 345.92 2.075 59 133.95 101.32 438.16 180.00 208.02 442.34 348.98 2.076 60 133.42 101.14 435.00 180.00 206.37 438.23 344.90 2.076 61 134.47 101.49 435.00 180.00 208.93 430.94 337.76 2.078 62 133.95 101.32 435.00 180.00 207.80 434.04 340.82 2.080 63 135.00 101.67 438.16 180.00 210.56 435.05 341.84 2.081 64 135.00 101.67 435.00 180.00 210.06 427.84 334.69 2.081 65 134.47 101.49 438.16 180.00 209.43 438.15 344.90 2.081 66 133.42 101.14 435.00 180.00 206.66 437.13 343.68 2.081 67 133.95 101.32 438.16 180.00 208.31 441.24 347.96 2.082 68 132.37 100.79 435.00 180.00 204.40 443.30 350.00 2.083 69 132.89 100.96 435.00 180.00 205.53 440.21 346.94 2.084 70 134.47 101.49 435.00 180.00 209.22 429.83 336.73 2.084 71 135.00 101.67 441.32 180.00 210.79 443.36 350.00 2.085 72 133.95 101.32 435.00 180.00 208.09 432.93 339.80 2.085 73 135.00 101.67 435.00 180.00 210.35 426.72 333.67 2.086 74 135.00 101.67 438.16 180.00 210.64 433.94 340.82 2.087 75 134.47 101.49 438.16 180.00 209.72 437.04 343.88 2.087 76 133.42 101.14 435.00 180.00 206.95 436.02 342.86 2.087 77 133.95 101.32 438.16 180.00 208.59 440.13 346.94 2.087 78 133.42 101.14 438.16 180.00 207.47 443.22 350.00 2.089 79 132.89 100.96 435.00 180.00 205.82 439.11 345.92 2.089 80 135.00 101.67 441.32 180.00 211.08 442.25 348.98 2.090 61 133.95 101.32 435.00 180.00 208.38 431.81 338.78 2.091 62 135.00 101.67 441.32 180.00 211.36 441.14 347.96 2.092 83 135.00 101.67 435.00 180.00 210.64 425.61 332.65 2.092 84 132.37 100.79 435.00 180.00 204.69 442.19 348.98 2.092 85 133.42 101.14 435.00 180.00 207.24 434.91 341.84 2.092 86 134.47 101.49 438.16 180.00 210.01 435.93 342.86 2.093 87 135.00 101.67 438.16 180.00 211.13 432.82 339.80 2.093 88 134.47 101.49 435.00 180.00 209.51 428.71 335.71 2.093 89 133.95 101.32 438.16 180.00 208.88 439.02 345.92 2.093 90 133.42 101.14 438.16 180.00 207.76 442.11 348.98 2.094 91 132.89 100.96 435.00 180.00 206.11 438.00 344.90 2.095 92 135.00 101.67 441.32 180.00 211.64 440.03 346.94 2.097 93 133.95 101.32 435.00 180.00 208.67 430.70 337.76 2.097 94 132.37 100.79 435.00 180.00 204.98 441.09 347.96 2.097 95 135.00 101.67 435.00 180.00 210.93 424.49 331.63 2.098 96 133.42 101.14 435.00 180.00 207.53 433.80 340.82 2.098 97 134.47 101.49 435.00 180.00 209.80 427.60 334.69 2.098 98 134.47 101.49 438.16 180.00 210.29 434.81 341.84 2.099 99 135.00 101.67 438.16 180.00 211.42 431.71 338.78 2.099 Critical Failure Surface (circle 1) Intersects: XL: 135.00 YL: 101.67 XR: 435.00 YR: 180.00 Centre: XC: 205.72 YC: 444.45 Radius: R: 350.00 Generated failure surface: (20 points) 135.00 101.67 151.63 98.65 168.39 96.44 185.24 95.05 202.13 94.47 219.04 94.70 235.91 95.75 252.71 97.62 269.40 100.29 285.94 103.76 302.30 108.03 318.43 113.09 334.30 118.92 349.87 125.51 365.10 132.84 379.96 140.90 394.41 149.66 408.42 159.12 421.96 169.24 435.00 180.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 48 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width L ngth Matl Cohesion Phi Weight Force Stress Factor 1 135.00 21.75 -10.3 .19 .34 2 0.00 35.0 2719.11 41497.48 4599.07 1.09 2 144.19 49.43 -10.3 .44 .56 3 100.00 18.0 6259.36 34282.54 4984.25 1.05 3 151.63 62.78 -7.5 .27 .32 3 100.00 18.0 8024.09 29096.23 5279.29 1.03 4 157.90 81.05 -7.5 .27 .32 3 100.00 18.0 10390.55 29422.00 5530.85 1.03 5 164.17 64.94 -7.5 .22 .26 4 2000.00 20.0 8339.17 20016.30 5874.19 1.03 6 168.39 152.52 -4.7 .42 .45 4 2000.00 20.0 19591.64 40033.76 6036.39 1.02 7 176.82 182.05 -4.7 .42 .45 4 2000.00 20.0 23377.25 40402.04 6314.19 1.02 8 185.24 210.50 -2.0 .45 .45 4 2000.00 20.0 27001.76 40663.31 6498.07 1.01 9 193.69 236.74 -2.0 .45 .45 4 2000.00 20.0 30321.16 40816.59 6716.61 1.01 10 202.13 274.82 0.8 .87 .87 4 2000.00 20.0 35128.30 42866.78 6842.98 1.00 11 211.00 270.78 0.8 .04 .04 4 2000.00 20.0 34482.91 38795.07 6995.66 1.00 12 219.04 304.72 3.6 .44 .45 4 2000.00 20.0 38597.26 40630.49 7039.79 0.99 13 227.47 324.01 3.6 .44 .45 4 2000.00 20.0 40818.81 40353.33 7126.31 0.99 14 235.91 226.16 6.3 .63 .66 4 2000.00 20.0 28364.70 26636.67 7109.45 0.99 15 241.54 233.21 6.3 .63 .66 4 2000.00 20.0 29136.45 26615.94 7128.28 0.99 16 247.17 236.53 6.3 .54 .58 3 100.00 18.0 29445.69 25993.84 7257.20 0.99 17 252.71 269.29 9.1 .15 .22 3 100.00 18.0 33389.25 28697.23 7232.49 0.99 18 258.85 275.83 9.1 .15 .22 3 100.00 18.0 34047.09 28315.00 7210.66 0.99 19 265.00 118.72 9.1 .60 .63 3 100.00 18.0 14614.46 11869.40 7197.25 0.99 20 267.60 82.82 9.1 .80 .82 2 0.00 35.0 10190.83 8171.85 7124.81 0.96 21 269.40 246.46 11.9 .30 .42 2 0.00 35.0 30330.69 24044.68 7065.61 0.95 22 274.70 249.92 11.9 .30 .42 2 0.00 35.0 30763.27 23668.38 7034.17 0.95 23 280.00 284.41 11.9 .94 .07 2 0.00 35.0 34987.16 26097.16 6996.20 0.95 24 285.94 147.70 14.6 .06 .16 2 0.00 35.0 18149.59 13371.01 6908.09 0.95 25 289.00 323.70 14.6 .65 .87 2 0.00 35.0 39764.66 28549.45 6846.77 0.95 26 295.65 326.90 14.6 .65 .87 2 0.00 35.0 40163.88 27804.77 6765.94 0.95 27 302.30 399.06 17.4 .07 .45 2 0.00 35.0 49035.70 33069.42 6605.54 0.94 28 310.37 400.36 17.4 .07 .45 2 0.00 35.0 49197.73 31736.27 6456.86 0.94 29 318.43 393.40 20.2 .93 .45 2 0.00 35.0 48341.98 30301.27 6238.35 0.94 30 326.36 391.26 20.2 .93 .45 2 0.00 35.0 48074.60 28764.26 6041.57 0.94 31 334.30 286.21 22.9 .85 0.35 2 0.00 35.0 35162.39 20552.77 5606.31 0.94 32 340.15 283.14 22.9 .85 6.35 2 0.00 35.0 34777.97 19571.22 5623.20 0.94 33 346.00 185.39 22.9 .87 4.20 2 0.00 35.0 22768.27 12392.94 5506.12 0.94 34 349.87 147.53 25.7 .10 3.44 2 0.00 35.0 18115.35 9828.82 5403.80 0.95 35 352.97 284.27 25.7 .06 6.73 6 50.00 16.0 34941.12 18286.40 5551.17 1.04 36 359.03 278.83 25.7 .06 6.73 6 50.00 16.0 34349.14 17060.38 5448.04 1.04 37 365.10 220.69 28.5 .90 5.58 6 50.00 16.0 27246.94 13165.91 5311.55 1.05 38 370.00 416.24 28.5 .96 11.33 6 50.00 16.0 51542.19 23892.54 4939.65 1.05 39 379.96 250.63 31.2 .76 7.91 6 50.00 16.0 31157.77 14341.93 4365.87 1.07 40 386.72 251.19 31.2 .69 8.99 2 0.00 35.0 31283.23 13842.83 3620.69 0.96 41 394.41 141.76 34.0 .94 5.96 6 50.00 16.0 17678.36 7692.89 3355.61 1.10 42 399.36 69.04 34.0 .64 3.19 2 0.00 35.0 8630.39 3604.64 2851.49 0.97 43 402.00 72.61 34.0 3.00 3.62 5 0.00 45.0 7987.25 3659.17 2241.80 0.90 44 405.00 75.45 34.0 3.42 4.13 2 0.00 35.0 9431.50 3617.71 2391.81 0.97 45 408.42 124.24 36.8 6.77 8.45 2 0.00 35.0 15530.53 5459.63 1948.62 0.99 46 415.19 89.99, 36.8 6.77 8.45 2 0.00 35.0 11248.43 2790.94 1382.50 0.99 47 421.96 31.38 39.5 3.35 4.34 2 D.00 35.0 3922.74 373.80 926.53 1.00 48 425.31 38.76 39.5 9.69 12.57 2 0.00 35.0 4845.21 0.00 386.75 1.00 X -S Area: 10089.20 Path Length: 321.18 X -S Weight: 1253667.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 7 RD EQ.gmf Processed: 30 Jul 2019 15:52:131 DATA: Analysis 1 - Case 7 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (11 profiles) Profile: 1 0.00 Profile: 2 0.00 Profile: 3 0.00 Profile: 4 0.00 Profile: 5 0.00 Profile: 6 302.00 Profile: 7 305.00 Profile: 8 305.00 Profile: 9 305.00 Profile: 10 305.00 Profile: 11 302.00 (2 points) Material beneath: 2 - Sand and Gravel 160.00 302.00 160.00 (2 points) Material beneath: 6 - Clay 147.00 302.00 147.00 (2 points) Material beneath: 2 - Sand and Gravel 142.00 302.00 142.00 (2 points) Material beneath: 3 - Weathered Bedrock 100.00 302.00 100.00 (2 points) Material beneath: 4 - Stable Bedrock 97.00 302.00 97.00 (2 points) Material beneath: 5 - Slurry Wall 160.00 305.00 160.00 (2 points) Material beneath: 2 - Sand and Gravel 160.00 495.00 160.00 (2 points) Material beneath: 6 - Clay 147.00 495.00 147.00 (2 points) Material beneath: 2 - Sand and Gravel 142.00 495.00 142.00 (2 points) Material beneath: 3 - Weathered Bedrock 100.00 495.00 100.00 (2 points) Material beneath: 4 - Stable Bedrock 97.00 495.00 97.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 100.00 0.00 Failure Surface 100.00 100.00 100.00 100.00 280.00 160.00 262.00 154.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 330.00 YR: Centre: XC: 159.13 YC: 355.97 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 30.00 20 R 40.00 50 RESULTS: Analysis 1 - Case 7 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface 495.00 160.00 495.00 154.00 160.00 260.00 Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.785 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.31 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 330.00 160.00 159.13 355.97 260.00 1.312 <-- Critical Surface 2 105.00 101.67 330.00 160.00 159.36 355.09 259.18 1.322 3 105.00 101.67 330.00 160.00 159.59 354.20 258.37 1.332 4 105.00 101.67 330.00 160.00 159.82 353.32 257.55 1.344 5 104.47 101.49 330.00 160.00 158.87 355.74 260.00 1.351 6 105.00 101.67 330.00 160.00 160.05 352.43 256.73 1.356 7 105.00 101.67 331.58 160.00 160.40 355.70 260.00 1.360 8 104.47 101.49 330.00 160.00 159.10 354.85 259.18 1.362 9 105.00 101.67 330.00 160.00 160.28 351.54 255.92 1.363 10 105.00 101.67 331.58 160.00 160.63 354.81 259.18 1.368 11 104.47 101.49 330.00 160.00 159.33 353.97 258.37 1.370 12 105.00 101.67 330.00 160.00 160.51 350.66 255.10 1.374 13 105.00 101.67 331.58 160.00 160.85 353.92 258.37 1.378 14 104.47 101.49 330.00 160.00 159.56 353.08 257.55 1.380 15 105.00 101.67 330.00 160.00 160.74 349.77 254.29 1.384 16 105.00 101.67 331.58 160.00 161.08 353.04 257.55 1.388 17 103.95 101.32 330.00 160.00 158.60 355.51 260.00 1.388 18 104.47 101.49 330.00 160.00 159.79 352.20 256.73 1.390 19 105.00 101.67 330.00 160.00 160.97 348.88 253.47 1.394 20 104.47 101.49 331.58 160.00 160.13 355.46 260.00 1.395 21 103.95 101.32 330.00 160.00 158.83 354.62 259.18 1.398 22 105.00 101.67 331.58 160.00 161.31 352.15 256.73 1.398 23 104.47 101.49 330.00 160.00 160.02 351.31 255.92 1.401 24 105.00 101.67 333.16 160.00 161.66 355.42 260.00 1.402 25 104.47 101.49 331.58 160.00 160.36 354.58 259.18 1.405 26 105.00 101.67 330.00 160.00 161.20 347.99 252.65 1.405 27 103.95 101.32 330.00 160.00 159.06 353.74 258.37 1.408 28 105.00 101.67 331.58 160.00 161.54 351.26 255.92 1.410 29 104.47 101.49 330.00 160.00 160.25 350.42 255.10 1.411 30 105.00 101.67 333.16 160.00 161.89 354.53 259.18 1.412 31 101.47 101.49 331.58 160.00 160.59 353.69 258.37 1.414 32 105.00 101.67 330.00 160.00 161.43 347.10 251.84 1.415 33 105.00 101.67 331.58 160.00 161.77 350.37 255.10 1.420 34 104.47 101.49 330.00 160.00 160.48 349.53 254.29 1.421 35 105.00 101.67 333.16 160.00 162.11 353.64 258.37 1.422 36 104.47 101.49 331.58 160.00 160.82 352.80 257.55 1.424 37 103.42 101.14 330.00 160.00 158.34 355.27 260.00 1.425 38 103.95 101.32 330.00 160.00 159.29 352.85 257.55 1.425 39 105.00 101.67 330.00 160.00 161.66 346.21 251.02 1.425 40 105.00 101.67 331.58 160.00 162.00 349.48 254.29 1.430 41 104.47 101.49 330.00 160.00 160.71 348.64 253.47 1.431 42 103.95 101.32 330.00 160.00 159.52 351.96 256.73 1.431 43 105.00 101.67 333.16 160.00 162.34 352.75 257.55 1.432 44 103.42 101.14 330.00 160.00 158.57 354.39 259.18 1.433 45 104.47 101.49 331.58 160.00 161.05 351.92 256.73 1.434 46 103.95 101.32 331.58 160.00 159.87 355.23 260.00 1.435 47 105.00 101.67 330.00 160.00 161.89 345.32 250.20 1.436 48 103.95 101.32 330.00 160.00 159.75 351.08 255.92 1.437 49 104.47 101.49 333.16 160.00 161.39 355.18 260.00 1.438 50 105.00 101.67 331.58 160.00 162.23 348.59 253.47 1.440 51 103.42 101.14 330.00 160.00 158.80 353.50 258.37 1.441 52 103.95 101.32 331.58 160.00 160.10 354.34 259.18 1.441 53 105.00 101.67 333.16 160.00 162.57 351.86 256.73 1.442 54 103.95 101.32 330.00 160.00 159.98 350.19 255.10 1.445 55 104.47 101.49 330.00 160.00 160.94 347.75 252.65 1.446 56 105.00 101.67 330.00 160.00 162.12 344.42 249.39 1.446 57 105.00 101.67 334.74 160.00 162.92 355.13 260.00 1.446 58 103.42 101.14 330.00 160.00 159.03 352.62 257.55 1.449 59 103.95 101.32 331.58 160.00 160.32 353.46 258.37 1.449 60 104.47 101.49 331.58 160.00 161.28 351.03 255.92 1.450 61 105.00 101.67 331.58 160.00 162.46 347.70 252.65 1.450 62 104.47 101.49 330.00 160.00 161.17 346.86 251.84 1.452 63 105.00 101.67 333.16 160.00 162.80 350.97 255.92 1.452 64 102.89 100.96 330.00 160.00 158.07 355.04 260.00 1.453 65 103.95 101.32 330.00 160.00 160.21 349.30 254.29 1.454 66 104.47 101.49 333.16 160.00 161.62 354.30 259.18 1.454 67 105.00 101.67 330.00 160.00 162.36 343.53 248.57 1.455 68 104.47 101.49 331.58 160.00 161.50 350.14 255.10 1.456 69 105.00 101.67 334.74 160.00 163.14 354.24 259.18 1.456 70 104.47 101.49 330.00 160.00 161.40 345.97 251.02 1.457 71 103.42 101.14 330.00 160.00 159.26 351.73 256.73 1.457 72 104.47 101.49 330.00 160.00 161.63 345.08 250.20 1.457 73 103.95 101.32 331.58 160.00 160.55 352.57 257.55 1.458 74 104.47 101.49 333.16 160.00 161.85 353.41 258.37 1.460 75 105.00 101.67 331.58 160.00 162.69 346.81 251.84 1.461 76 103.42 101.14 331.58 160.00 159.60 355.00 260.00 1.461 77 102.89 100.96 330.00 160.00 158.30 354.16 259.18 1.461 78 103.95 101.32 330.00 160.00 160.44 348.41 253.47 1.462 79 104.47 101.49 331.58 160.00 161.73 349.25 254.29 1.463 80 104.47 101.49 331.58 160.00 161.96 346.35 253.47 1.463 81 103.95 101.32 330.00 160.00 160.68 347.52 252.65 1.464 82 105.00 101.67 330.00 160.00 162.59 342.64 247.76 1.464 83 105.00 101.67 333.16 160.00 163.02 350.08 255.10 1.464 84 104.47 101.49 333.16 160.00 162.08 352.52 257.55 1.465 85 103.42 101.14 330.00 160.00 159.49 350.84 255.92 1.466 86 104.47 101.49 333.16 160.00 162.30 351.63 256.73 1.466 87 103.95 101.32 331.58 160.00 160.76 351.68 256.73 1.466 88 103.95 101.32 331.58 160.00 161.01 350.79 255.92 1.468 69 105.00 101.67 330.00 160.00 162.82 341.74 246.94 1.468 90 105.00 101.67 331.58 160.00 162.92 345.91 251.02 1.469 91 105.00 101.67 334.74 160.00 163.37 353.35 258.37 1.469 92 103.42 101.14 331.58 160.00 159.83 354.11 259.18 1.469 93 102.89 100.96 330.00 160.00 156.53 353.27 258.37 1.469 94 103.95 101.32 333.16 160.00 161.13 354.95 260.00 1.470 95 104.47 101.49 334.74 160.00 162.65 354.90 260.00 1.470 96 103.42 101.14 330.00 160.00 159.72 349.95 255.10 1.470 97 103.42 101.14 330.00 160.00 159.95 349.06 254.29 1.471 98 104.47 101.49 330.00 160.00 161.86 344.19 249.39 1.471 99 105.00 101.67 333.16 160.00 163.25 349.19 254.29 1.471 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: Centre: XC: 159.13 YC: Generated failure surface: (20 points) 105.00 101.67 117.46 168.01 96.12 180.67 230.50 105.96 242.61 288.76 130.59 299.60 101.67 355.97 99.33 96.86 109.73 137.18 XR: 330.00 Radius: 130.03 193.26 254.51 310.10 97.60 98.22 114.10 144.29 YR: R: Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) 160.00 260.00 142.66 205.81 266.19 320.24 96.49 100.19 119.04 151.90 155.33 218.22 277.62 330.00 96.00 102.77 124.54 160.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 5.14 -10.6 4.44 4.52 2 0.00 35.0 643.05 326.61 152.73 1.13 2 109.44 15.43 -10.6 4.44 4.52 2 0.00 35.0 1929.16 979.82 458.20 1.13 3 113.89 19.88 -10.6 3.58 3.64 3 100.00 18.0 2504.15 1262.12 732.64 1.07 4 117.46 50.07 -7.8 6.28 6.34 3 100.00 18.0 6369.17 3153.56 1042.95 1.04 5 123.75 68.64 -7.8 6.28 6.34 3 100.00 18.0 8777.92 4323.59 1433.41 1.04 6 130.03 94.94 -5.0 6.85 6.88 3 100.00 18.0 12163.08 5946.97 1601.56 1.03 7 136.88 95.40 -5.0 5.78 5.80 4 2000.00 20.0 12226.10 5976.10 2280.63 1.03 8 142.66 119.80 -2.2 6.34 6.34 4 2000.00 20.0 15343.24 748I.23 2495.35 1.01 9 149.00 134.75 -2.2 6.34 6.34 4 2000.00 20.0 17236.75 8414.66 2795.86 1.01 10 155.33 148.83 0.6 6.34 6.34 4 2000.00 20.0 19006.33 9267.25 2978.65 1.00 11 161.67 161.83 0.6 6.34 6.34 4 2000.00 20.0 20625.89 10098.92 3233.75 1.00 12 168.01 173.56 3.4 6.33 6.34 4 2000.00 20.0 22069.35 10848.88 3370.21 0.99 13 174.34 184.57 3.4 6.33 6.34 4 2000.00 20.0 23407.67 11536.92 3579.98 0.99 14 180.67 38.32 6.1 1.27 1.28 4 2000.00 20.0 4851.95 2404.81 3604.80 0.98 15 181.94 175.48 6.1 5.67 5.70 3 100.00 18.0 22179.82 11013.54 3852.86 0.98 16 187.61 182.73 6.1 5.67 5.70 3 100.00 18.0 23030.70 11468.57 4001.12 0.98 17 193.28 188.50 8.9 5.65 5.72 3 100.00 18.0 23663.59 11907.48 4101.77 0.97 18 198.93 194.12 8.9 5.65 5.72 3 100.00 18.0 24305.12 12262.18 4209.98 0.97 19 204.58 42.97 8.9 1.23 1.24 2 0.00 35.0 5371.83 2714.63 4201.40 0.93 20 205.81 220.17 11.7 6.21 6.34 2 0.00 35.0 27521.65 14032.33 4211.61 0.92 21 212.02 225.01 11.7 6.21 6.34 2 0.00 35.0 28126.40 14340.68 4304.15 0.92 22 216.22 142.99 14.5 3.89 4.02 2 0.00 35.0 17873.16 9217.26 4317.54 0.91 23 222.11 144.11 14.5 3.89 4.02 2 0.00 35.0 18013.16 9289.47 4351.35 0.91 24 226.00 168.20 14.5 4.50 4.65 2 0.00 35.0 21008.63 10842.94 4384.52 0.91 25 230.50 197.40 17.3 5.25 5.50 2 0.00 35.0 24612.06 12903.16 4353.86 0.90 26 235.75 197.98 17.3 5.25 5.50 2 0.00 35.0 24639.53 12941.54 4359.34 0.90 27 241.00 60.68 17.3 1.61 1.68 2 0.00 35.0 7544.91 3966.51 4364.07 0.90 28 242.61 224.47 20.1 5.95 6.34 2 0.00 35.0 27909.89 14917.65 4306.02 0.89 29 248.56 223.30 20.1 5.95 6.34 2 0.00 35.0 27763.27 14839.70 4283.41 0.89 30 254.51 277.56 22.9 7.49 8.13 2 0.00 35.0 34507.57 18804.09 4186.53 0.89 31 262.00 153.27 22.9 4.19 4.55 2 0.00 35.0 19054.09 10165.33 4119.20 0.89 32 266.19 205.32 25.7 5.71 6.34 2 0.00 35.0 25521.61 13290.06 3982.64 0.88 33 271.91 200.48 25.7 5.71 6.34 2 0.00 35.0 24916.74 12201.47 3863.33 0.88 34 277.62 81.95 28.5 2.38 2.71 2 0.00 35.0 10183.87 4871.79 3720.34 0.88 35 280.00 144.50 28.5 4.38 4.99 2 0.00 35.0 17952.52 8394.01 3555.07 0.88 36 284.38 134.07 28.5 4.38 4.99 2 0.00 35.0 16649.28 7653.65 3291.06 0.88 37 288.76 150.41 31.3 5.42 6.34 2 0.00 35.0 18665.46 8610.52 2933.99 0.68 38 294.18 132.56 31.3 5.42 6.34 2 0.00 35.0 16434.53 7307.09 2572.70 0.88 39 299.60 52.86 34.1 2.40 2.90 2 0.00 35.0 6547.39 2897.29 2267.67 0.89 40 302.00 60.54 34.1 3.00 3.62 5 0.00 45.0 6659.15 3205.45 1765.42 0.80 41 305.00 31.94 34.1 1.72 2.08 2 0.00 35.0 3949.58 1629.72 1696.34 0.89 42 306.72 56.98 34.1 3.38 4.08 6 50.00 16.0 7057.45 2765.38 1883.48 1.05 43 310.10 51.85 36.9 3.61 4.52 6 50.00 16.0 6457.10 2354.82 1584.69 1.07 44 313.71 68.89 36.9 6.53 8.17 2 0.00 35.0 8610.74 2317.78 1022.73 0.89 45 320.24 17.82 39.7 2.53 3.29 2 0.00 35.0 2227.97 215.11 630.82 0.90 46 322.77 21.69 39.7 7.23 9.40 2 0.00 35.0 2711.29 0.00 259.92 0.90 X -S Area: 5741.96 Path Length: 240.95 X -S Weight: 718843.75 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 7 Full EQ.gmf Processed: 30 Jul 2019 15:56:54 DATA: Analysis 1 - Case 7 - Full Reservoir EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) - Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Overburden Sand and Gravel Weathered Bedrock Stable Bedrock Slurry Wall Clay Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (11 profiles) Profile: 1 (2 points) 0.00 160.00 Profile: 2 (2 points) 0.00 147.00 Profile: 3 (2 points) 0.00 142.00 Profile: 4 (2 points) 0.00 100.00 Profile: 5 (2 points) 0.00 97.00 Profile: 6 (2 .points) 302.00 160.00 Profile: 7 (2 points) 305.00 160.00 Profile: 8 (2 points) 305.00 147.00 Profile: 9 (2 points) 305.00 142.00 Profile: 10 (2 points) 305.00 100.00 Profile: 11 (2 points) 302.00 97.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 302.00 Material beneath: 305.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Material beneath: 495.00 Slope Surface (4 points) 0.00 100.00 Phreatic Surface (4 points) 0.00 154.00 Failure Surface 100.00 100.00 2 - Sand and Gravel 160.00 6 - Clay 147.00 2 - Sand and Gravel 142.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 160.00 2 - Sand and Gravel 160.00 6 - Clay 147.00 2 - Sand and Gravel 142.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 154.00 280.00 160.00 262.00 154.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 330.00 YR: Centre: XC: 157.73 YC: 361.37 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL 10.00 20 XR 30.00 20 RESULTS: Analysis 1 - Case 7 - Full Reservoir EQ R 50.00 50 495.00 160.00 495.00 154.00 160.00 265.00 Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.792 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.98 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 330.00 160.00 157.73 361.37 265.00 1.978 <-- Critical Surface 2 105.00 101.67 330.00 160.00 158.02 360.27 263.98 2.007 3 105.00 101.67 330.00 160.00 158.30 359.17 262.96 2.037 4 104.47 101.49 330.00 160.00 157.47 361.14 265.00 2.063 5 105.00 101.67 330.00 160.00 156.59 356.07 261.94 2.066 6 105.00 101.67 331.58 160.00 159.01 361.11 265.00 2.078 7 105.00 101.67 330.00 160.00 158.87 356.96 260.92 2.086 8 105.00 101.67 331.58 160.00 159.29 360.00 263.98 2.090 9 104.47 101.49 330.00 160.00 157.75 360.04 263.98 2.092 10 104.47 101.49 330.00 160.00 158.04 358.94 262.96 2.102 11 105.00 101.67 330.00 160.00 159.16 355.86 259.90 2.110 12 105.00 101.67 331.58 160.00 159.57 358.90 262.96 2.118 13 105.00 101.67 330.00 160.00 159.45 354.75 258.88 2.129 14 104.47 101.49 330.00 160.00 158.32 357.84 261.94 2.131 15 103.95 101.32 330.00 160.00 157.20 360.91 265.00 2.135 16 105.00 101.67 331.58 160.00 159.86 357.80 261.94 2.137 17 104.47 101.49 331.58 160.00 158.74 360.88 265.00 2.139 18 105.00 101.67 333.16 160.00 160.27 360.84 265.00 2.145 19 104.47 101.49 330.00 160.00 158.61 356.73 260.92 2.149 20 105.00 101.67 330.00 160.00 159.73 353.65 257.66 2.149 21 103.95 101.32 330.00 160.00 157.48 359.81 263.98 2.153 22 104.47 101.49 331.58 160.00 159.02 359.77 263.98 2.157 23 105.00 101.67 331.58 160.00 160.14 356.69 260.92 2.157 24 105.00 101.67 333.16 160.00 160.56 359.73 263.98 2.166 25 104.47 101.49 330.00 160.00 156.90 355.63 259.90 2.169 26 103.95 101.32 330.00 160.00 157.77 358.71 262.96 2.171 27 105.00 101.67 330.00 160.00 160.02 352.54 256.84 2.172 28 105.00 101.67 331.58 160.00 160.43 355.59 259.90 2.175 29 104.47 101.49 331.58 160.00 159.31 358.67 262.96 2.177 30 105.00 101.67 333.16 160.00 160.84 358.63 262.96 2.182 31 105.00 101.67 330.00 160.00 160.31 351.43 255.82 2.187 32 103.95 101.32 330.00 160.00 158.06 357.60 261.94 2.190 33 104.47 101.49 330.00 160.00 159.18 354.52 258.88 2.191 34 103.42 101.14 330.00 160.00 156.93 360.68 265.00 2.193 35 105.00 101.67 331.58 160.0D 160.71 354.48 258.88 2.194 36 104.47 101.49 331.58 160.00 159.59 357.57 261.94 2.194 37 103.95 101.32 331.58 160.0D 158.47 360.65 265.00 2.198 38 105.00 101.67 333.16 160.00 161.12 357.52 261.94 2.201 39 104.47 101.49 333.16 160.00 160.01 360.61 265.00 2.202 40 104.47 101.49 330.00 160.00 159.47 353.42 257.86 2.206 41 105.00 101.67 330.00 160.00 160.60 350.32 254.80 2.207 42 105.00 101.67 334.74 160.00 161.54 360.57 265.00 2.208 43 103.95 101.32 330.00 160.00 158.34 356.50 260.92 2.211 44 103.42 101.14 330.00 160.00 157.22 359.58 263.98 2.212 45 104.47 101.49 331.58 160.00 159.88 356.46 260.92 2.213 46 105.00 101.67 331.58 160.00 161.00 353.37 257.86 2.213 47 103.95 101.32 331.58 160.00 158.76 359.54 263.98 2.215 48 105.00 101.67 333.16 160.00 161.40 356.42 260.92 2.220 49 104.47 101.49 333.16 160.00 160.29 359.50 263.98 2.220 50 104.47 101.49 330.00 160.00 159.76 352.31 256.84 2.225 51 103.95 101.32 330.00 160.00 158.63 355.40 259.90 2.226 52 105.00 101.67 330.00 160.00 160.88 349.21 253.78 2.226 53 105.00 101.67 334.74 160.00 161.82 359.46 263.98 2.227 54 104.47 101.49 331.58 160.00 160.16 355.35 259.90 2.231 55 105.00 101.67 331.58 160.00 161.28 352.26 256.84 2.232 56 103.95 101.32 331.58 160.00 159.04 358.44 262.96 2.233 57 103.42 101.14 330.00 160.00 157.51 358.48 262.96 2.233 58 104.47 101.49 333.16 160.00 160.57 358.40 262.96 2.238 59 105.00 101.67 333.16 160.00 161.69 355.31 259.90 2.238 60 104.47 101.49 330.00 160.00 160.04 351.20 255.82 2.244 61 103.95 101.32 330.00 160.00 158.92 354.29 258.88 2.244 62 105.00 101.67 334.74 160.00 162.10 358.35 262.96 2.245 63 105.00 101.67 330.00 160.00 161.17 348.10 252.76 2.246 64 104.47 101.49 331.58 160.00 160.45 354.25 258.88 2.250 65 103.95 101.32 331.58 160.00 159.33 357.33 261.94 2.251 66 102.89 100.96 330.00 160.00 156.67 360.45 265.00 2.255 67 105.00 101.67 331.58 160.00 161.57 351.15 255.82 2.255 68 104.47 101.49 333.16 160.00 160.85 357.29 261.94 2.256 69 103.42 101.14 330.00 160.00 157.79 357.37 261.94 2.257 70 105.00 101.67 333.16 160.00 161.97 354.20 258.88 2.257 71 103.95 101.32 333.16 160.00 159.74 360.38 265.00 2.258 72 103.95 101.32 330.00 160.00 159.21 353.18 257.86 2.262 73 103.42 101.14 331.58 160.00 158.20 360.42 265.00 2.262 74 104.47 101.49 330.00 160.00 160.33 350.09 254.60 2.262 75 104.47 101.49 334.74 160.00 161.27 360.33 265.00 2.263 76 105.00 101.67 334.74 160.00 162.38 357.24 261.94 2.264 77 105.00 101.67 330.00 160.00 161.46 346.99 251.73 2.265 78 102.89 100.96 330.00 160.00 156.95 359.35 263.98 2.265 79 103.42 101.14 330.00 160.00 158.08 356.27 260.92 2.267 80 104.47 101.49 331.58 160.00 160.73 353.14 257.86 2.268 81 105.00 101.67 336.32 160.00 162.79 360.29 265.00 2.270 82 103.42 101.14 331.58 160.00 158.49 359.31 263.98 2.272 83 105.00 101.67 331.58 160.00 161.85 350.04 254.80 2.274 84 104.47 101.49 333.16 160.00 161.14 356.18 260.92 2.275 85 105.00 101.67 333.16 160.00 162.26 353.09 257.86 2.276 86 102.89 100.96 330.00 160.00 157.24 358.25 262.96 2.280 67 103.42 101.14 330.00 160.00 158.37 355.16 259.90 2.281 88 103.95 101.32 331.58 160.00 159.61 356.23 260.92 2.281 89 104.47 101.49 334.74 160.00 161.55 359.23 263.98 2.281 90 104.47 101.49 330.00 160.00 160.62 348.98 253.78 2.281 91 105.00 101.67 334.74 160.00 162.66 356.13 260.92 2.282 92 105.00 101.67 330.00 160.00 161.75 345.87 250.71 2.285 93 103.95 101.32 333.16 160.00 160.02 359.27 263.98 2.286 94 103.42 101.14 331.58 160.00 158.77 358.21 262.96 2.287 95 104.47 101.49 331.58 160.00 161.02 352.03 256.84 2.287 96 103.95 101.32 330.00 160.00 159.49 352.07 256.84 2.287 97 105.00 101.67 336.32 160.00 163.07 359.18 263.98 2.289 98 103.95 101.32 331.58 160.00 159.90 355.12 259.90 2.292 99 104.47 101.49 333.16 160.00 161.42 355.07 259.90 2.293 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 330.00 YR: 160.00 Centre: XC: 157.73 YC: 361.37 Radius: R: 265.00 Generated failure surface: (20 points) 105.00 101.67 117.47 99.44 130.02 97.82 142.65 96.80 155.30 96.38 167.96 96.56 180.60 97.36 193.19 98.75 205.69 100.74 218.09 103.33 230.35 106.51 242.44 110.27 254.34 114.60 266.02 119.50 277.45 124.95 288.60 130.94 299.46 137.45 310.00 144.48 320.18 152.00 330.00 160.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 5.59 -10.1 4.67 4.75 2 0.00 35.0 698.60 15627.98 3371.49 1.08 2 109.67 16.77 -10.1 4.67 4.75 2 0.00 35.0 2095.81 15874.90 3583.28 1.08 3 114.35 17.40 -10.1 3.12 3.17 3 100.00 18.0 2189.02 10727.87 3760.69 1.05 4 117.47 49.17 -7.4 6.28 6.33 3 100.00 18.0 6243.02 21714.76 3952.89 1.03 5 123.75 67.41 -7.4 6.28 6.33 3 100.00 18.0 8605.00 22035.6/ 4202.67 1.03 6 130.02 66.94 -4.6 5.06 5.07 3 100.00 18.0 8560.74 17852.35 4401.06 1.02 7 135.08 77.54 -4.6 5.06 O.D/ 3 100.00 18.0 9918.62 17982.04 4566.23 1.02 8 140.14 42.36 -4.6 2.51 2.52 4 2000.00 20.0 5419.85 8961.48 4770.59 1.02 9 142.65 117.56 -1.9 6.33 6.33 4 2000.00 20.0 15030.21 22641.57 4833.00 1.01 10 148.97 132.23 -1.9 6.33 6.33 4 2000.00 20.0 16885.44 22724.21 4995.47 1.01 11 155.30 146.02 0.8 6.33 6.33 4 2000.00 20.0 18614.25 22747.14 5074.81 1.00 12 161.63 158.79 0.8 6.33 6.33 4 2000.00 20.0 20201.04 22710.36 5193.43 1.00 13 167.96 187.95 3.6 6.95 6.97 4 2000.00 20.0 23851.13 24873.12 5231.58 0.99 14 174.92 163.41 3.6 5.69 5.70 3 100.00 18.0 20682.85 20198.09 5368.19 0.99 15 180.60 190.13 6.3 6.29 6.33 3 100.00 18.0 23996.79 22241.68 5400.89 0.99 16 186.90 198.94 6.3 6.29 6.33 3 100.00 16.0 25028.37 21966.25 5432.56 0.99 17 193.19 128.03 9.1 3.92 3.97 3 100.00 18.0 16062.02 13610.26 5426.84 0.99 18 197.11 130.70 9.1 3.92 3.97 3 100.00 18.0 16357.04 13455.46 5419.68 0.99 19 201.03 158.95 9.1 4.66 4.72 2 0.00 35.0 19868.15 15803.34 5365.97 0.96 20 205.69 216.14 11.8 6.20 6.33 2 0.00 35.0 27017.36 20785.23 5315.62 0.95 21 211.89 220.92 11.8 6.20 6.33 2 0.00 35.0 27615.12 20273.85 5279.82 0.95 22 216.09 143.10 14.5 3.96 4.09 2 0.00 35.0 17887.04 12788.43 5204.00 0.95 23 222.04 144.26 14.5 3.96 4.09 2 0.00 35.0 18031.90 12526.96 5156.81 0.95 24 226.00 159.87 14.5 4.35 4.49 2 0.00 35.0 19968.19 13465.40 5103.96 0.95 25 230.35 197.07 17.3 5.33 5.58 2 0.00 35.0 24571.89 16241.64 4987.60 0.94 26 235.67 197.71 17.3 5.33 5.58 2 0.00 35.0 24604.02 15665.15 4882.98 0.94 27 241.00 53.52 17.3 1.44 1.51 2 0.00 35.0 6653.75 4132.88 4817.62 0.94 28 242.44 220.82 20.0 5.95 6.33 2 0.00 35.0 27454.01 16848.96 4697.23 0.94 29 248.39 219.73 20.0 5.95 6.33 2 0.00 35.0 27317.54 15992.97 4551.86 0.94 30 254.34 140.52 22.7 3.83 4.15 2 0.00 35.0 17469.82 10005.05 4385.73 0.94 31 258.17 139.26 22.7 3.83 4.15 2 0.00 35.0 17312.05 9588.56 4267.52 0.94 32 262.00 144.59 22.7 4.02 4.35 2 0.00 35.0 17973.98 9602.01 4182.85 0.94 33 266.02 202.49 25.5 5.72 6.33 2 0.00 35.0 25168.14 13092.32 4066.34 0.95 34 271.73 197.80 25.5 5.72 6.33 2 0.00 35.0 24582.64 12015.85 3954.16 0.95 35 277.45 86.68 28.2 2.55 2.90 2 0.00 35.0 10771.54 5130.70 3826.69 0.95 36 280.00 139.91 28.2 4.30 4.88 2 0.00 35.0 17381.78 8081.00 3659.80 0.95 37 284.30 129.98 28.2 4.30 4.88 2 0.00 35.0 16140.22 7377.56 3394.26 0.95 38 288.60 148.94 31.0 5.43 6.33 2 0.00 35.0 18482.20 8468.07 3042.12 0.96 39 294.03 131.26 31.0 5.43 6.33 2 0.00 35.0 16271.48 7181.09 2670.65 0.96 40 299.46 55.08 33.7 2.54 3.05 2 0.00 35.0 6821.53 2989.04 2361.39 0.97 41 302.00 59.56 33.7 3.00 3.61 5 0.00 45.0 6551.81 3117.37 1851.22 0.90 42 305.00 23.58 33.7 1.28 1.54 2 0.00 35.0 2915.72 1192.82 1991.28 0.97 43 306.28 62.30 33.7 3.72 4.47 6 50.00 16.0 7717.23 2999.89 1937.03 1.10 44 310.00 48.69 36.4 3.41 4.24 6 50.00 16.0 6065.02 2187.76 1637.50 1.12 45 313.41 71.11 36.4 6.77 8.42 2 0.00 35.0 8888.96 2363.83 1098.69 0.99 46 320.18 17.17 39.2 2.45 3.17 2 0.0D 35.0 2146.81 197.45 693.03 1.00 47 322.64 22.09 39.2 7.36 9.50 2 0.00 35.0 2760.95 0.00 291.04 1.00 X -S Area: 5650.05 Path Length: 240.60 X -S Weight: 706850.62 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 8 RD EQ.gmf Processed: 30 Jul 2019 16:08:50'. DATA: Analysis 1 - Case 8 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) - Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Overburden Sand and Gravel Weathered Bedrock Stable Bedrock Slurry Wall Clay Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 175.00 Profile: 2 (2 points) 0.00 165.00 Profile: 3 (2 points) 0.00 158.00 Profile: 4 (2 points) 0.00 132.00 Profile: 5 (2 points) 0.00 123.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 375.00 175.00 Profile: 9 (2 points) 378.00 175.00 Profile: 10 (2 points) 378.00 165.00 Profile: 11 (2 points) 378.00 158.00 Profile: 12 (2 points) 378.00 132.00 Profile: 13 (2 points) 378.00 123.00 Profile: 14 (2 points) 378.00 100.00 Profile: 15 (2 points) 375.00 97.00 Slope Surface (4 points) Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 378.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 0.00 100.00 125.00 Phreatic Surface (4 points) 0.00 100.00 125.00 Failure Surface 2 - Sand and Gravel 175.00 6 - Clay 165.00 2 - Sand and Gravel 158.00 6 - Clay 132.00. 2 - Sand and Gravel 123.00 3 - Weathered Bedrock 100..00 4 - Stable Bedrock 97.00 5 - Slurry Wall 175.00 2 - Sand and Gravel 175.00 6 - Clay 165.00 2 - Sand and Gravel 158.00 6 - Clay 132.00 2 - Sand and Gravel 123.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 350.00 175.00 332.00 169.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 128.00 YL: 101.00 XR: 400.00 YR: Centre: XC: 192.99 YC: 398.99 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: XL XR R 440.00 175.00 440.00 169.00 175.00 305.00 Range of variation: 6.00 30.00 10.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 8 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.488 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.31 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 128.00 101.00 400.00 175.00 192.99 398.99 305.00 1.309 <-- Critical Surface 2 128.00 101.00 400.00 175.00 193.05 398.77 304.80 1.309 3 128.00 101.00 400.00 175.00 193.11 398.55 304.59 1.309 4 128.00 101.00 400.00 175.00 193.18 398.33 304.39 1.309 5 128.00 101.00 400.00 175.00 193.24 398.11 304.18 1.309 6 128.00 101.00 400.00 175.00 193.30 397.88 303.98 1.309 7 128.00 101.00 400.00 175.00 193.36 397.66 303.78 1.316 8 128.00 101.00 400.00 175.00 193.42 397.44 303.57 1.317 9 128.00 101.00 400.00 175.00 193.48 397.22 303.37 1.318 10 128.00 101.00 400.00 175.00 193.54 396.99 303.16 1.319 11 127.68 100.89 400.00 175.00 192.84 398.65 305.00 1.320 12 128.00 101.00 400.00 175.00 193.60 396.77 302.96 1.320 13 127.68 100.89 400.00 175.00 192.90 398.63 304.80 1.320 14 128.00 101.00 400.00 175.00 193.66 396.55 302.76 1.321 15 127.68 100.89 400.00 175.00 192.96 398.41 304.59 1.321 16 128.00 101.00 400.00 175.00 193.72 396.33 302.55 1.322 17 127.68 100.89 400.00 175.00 193.02 396.19 304.39 1.322 18 128.00 101.00 400.00 175.00 193.78 396.10 302.35 1.322 19 127.68 100.89 400.00 175.00 193.08 397.96 304.18 1.323 20 128.00 101.00 400.00 175.00 193.84 395.88 302.14 1.323 21 127.68 100.89 400.00 175.00 193.14 397.74 303.98 1.324 22 128.00 101.00 400.00 175.00 193.90 395.66 301.94 1.324 23 127.68 100.89 400.00 175.00 193.20 397.52 303.76 1.325 24 128.00 101.00 400.00 175.00 193.96 395.44 301.73 1.325 25 127.68 100.89 400.00 175.00 193.27 397.30 303.57 1.326 26 128.00 101.00 400.00 175.00 194.02 395.21 301.53 1.326 27 128.00 101.00 401.58 175.00 194.27 396.71 305.00 1.326 28 127,68 100.89 400.00 175.00 193.33 397.08 303.37 1.327 29 128.00 101.00 400.00 175.00 194.08 394.99 301.33 1.327 30 128.00 101.00 401.58 175.00 194.33 398.49 304.80 1.327 31 127.68 100.89 400.00 175.00 193.39 396.85 303.16 1.328 32 128.00 101.00 400.00 175.00 194.14 394.77 301.12 1.328 33 128.00 101.00 401.58 175.00 194.39 398.27 304.59 1.328 34 127.37 100.79 400.00 175.00 192.69 398.71 305.00 1.328 35 127.68 100.89 400.00 175.00 193.45 396.63 302.96 1.328 36 126.00 101.00 400.00 175.00 194.20 394.55 300.92 1.329 37 128.00 101.00 401.58 175.00 194.45 398.05 304.39 1.329 38 127.37 100.79 400.00 175.00 192.75 398.49 304.80 1.329 39 128.00 101.00 400.00 175.00 194.27 394.32 300.71 1.329 40 127.68 100.89 400.00 175.00 193.51 396.41 302.76 1.329 41 128.00 101.00 401.58 175.00 194.51 397.82 304.18 1.330 42 128.00 101.00 400.00 175.00 194.33 394.10 300.51 1.330 43 127.37 100.79 400.00 175.00 192.81 398.27 304.59 1.330 44 127.68 100.89 400.00 175.00 193.57 396.19 302.55 1.330 45 128.00 101.00 401.58 175.00 194.57 397.60 303.98 1.331 46 128.00 101.00 400.00 175.00 194.39 393.88 300.31 1.331 47 127.37 100.79 400.00 175.00 192.67 398.05 304.39 1.331 48 127.68 100.89 400.00 175.00 193.63 395.96 302.35 1.331 49 128.00 101.00 401.58 175.00 194.63 397.38 303.78 1.331 50 128.00 101.00 400.00 175.00 194.45 393.65 300.10 1.332 51 127.37 100.79 400.00 175.00 192.93 397.82 304.18 1.332 52 127.68 100.89 400.00 175.00 193.69 395.74 302.14 1.332 53 128.00 101.00 401.58 175.00 194.69 397.16 303.57 1.332 54 128.00 101.00 400.00 175.00 194.51 393.43 299.90 1.332 55 127.68 100.89 400.00 175.00 193.75 395.52 301.94 1.333 56 127.37 100.79 400.00 175.00 192.99 397.60 303.98 1.333 57 128.00 101.00 401.58 175.00 194.75 396.93 303.37 1.333 58 128.00 101.00 400.00 175.00 194.57 393.21 299.69 1.333 59 127.68 100.89 400.00 175.00 193.81 395.29 301.73 1.333 60 128.00 101.00 401.58 175.00 194.81 396.71 303.16 1.334 61 127.37 100.79 400.00 175.00 193.05 397.38 303.78 1.334 62 128.00 101.00 400.00 175.00 194.63 392.98 299.49 1.334 63 127.68 100.89 400.00 175.00 193.87 395.07 301.53 1.334 64 128.00 101.00 401.58 175.00 194.87 396.49 302.96 1.334 65 127.37 100.79 400.00 175.00 193.11 397.16 303.57 1.335 66 127.68 100.89 401.58 175.00 194.12 398.57 305.00 1.335 67 128.00 101.00 400.00 175.00 194.69 392.76 299.29 1.335 68 127.66 100.89 400.00 175.00 193.93 394.85 301.33 1.335 69 128.00 101.00 401.58 175.00 194.93 396.26 302.76 1.335 70 127.37 100.79 400.00 175.00 193.17 396.93 303.37 1.335 71 127.66 100.89 401.58 175.00 194.18 396.35 304.80 1.335 72 128.00 101.00 400.00 175.00 194.75 392.54 299.08 1.336 73 127.66 100.89 400.00 175.00 193.99 394.63 301.12 1.336 74 128.00 101.00 401.58 175.00 194.99 396.04 302.55 1.336 75 127.68 100.89 401.58 175.00 194.24 398.13 304.59 1.336 76 127.37 100.79 400.00 175.00 193.23 396.71 303.16 1.336 77 128.00 101.00 400.00 175.00 194.61 392.31 298.88 1.336 76 127.68 100.89 400.00 175.00 194.05 394.40 300.92 1.337 79 128.00 101.00 401.58 175.00 195.05 395.62 302.35 1.337 80 127.37 100.79 400.00 175.00 193.29 396.49 302.96 1.337 81 127.68 100.89 401.58 175.00 194.30 397.90 304.39 1.337 82 128.00 101.00 400.00 175.00 194.87 392.09 298.67 1.337 83 127.05 100.68 400.00 175.00 192.54 398.57 305.00 1.337 64 127.68 100.89 400.00 175.00 194.11 394.18 300.71 1.337 65 128.00 101.00 401.58 175.00 195.11 395.59 302.14 1.337 86 127.37 100.79 400.00 175.00 193.36 396.27 302.76 1.338 87 127.68 100.89 401.58 175.00 194.36 397.68 304.18 1.338 88 128.00 101.00 400.00 175.00 194.93 391.87 298.47 1.338 89 127.05 100.68 400.00 175.00 192.60 398.35 304.80 1.338 90 127.68 100.89 400.00 175.00 194.17 393.96 300.51 1.338 91 128.00 101.00 401.58 175.00 195.17 395.37 301.94 1.338 92 127.37 100.79 400.00 175.00 193.42 396.04 302.55 1.338 93 127.68 100.89 401.58 175.00 194.42 397.46 303.98 1.338 94 128.00 101.00 400.00 175.00 194.99 391.64 298.27 1.339 95 127.68 100.89 400.00 175.00 194.23 393.73 300.31 1.339 96 127.05 100.66 400.00 175.00 192.66 398.13 304.59 1.339 97 128.00 101.00 401.58 175.00 195.23 395.15 301.73 1.339 98 127.37 100.79 400.00 175.00 193.48 395.82 302.35 1.339 99 127.68 100.89 401.58 175.00 194.48 397.24 303.78 1.339 Critical Failure Surface (circle 1) Intersects: XL: 128.00 YL: 101.00 Centre: XC: 192.99 YC: 398.99 Generated failure surface: (20 points) 128.00 101.00 143.14 98.10 204.61 94.22 220.00 95.19 280.48 106.81 295.13 111.61 350.78 137.98 363.77 146.29 XR: 400.00 YR: 175.00 Radius: R: 305.00 158.42 235.32 309.53 376.33 95.96 96.95 117.13 155.25 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) 173.78 250.53 323.63 388.41 94.60 99.47 123.39 164.82 189.19 265.60 337.39 400.00 94.02 102.76 130.34 175.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 128.00 7.14 -10.9 5.21 5.31 2 0.00 35.0 892.49 453.65 180.94 1.13 2 133.21 20.07 -10.9 4.97 5.06 3 100.00 18.0 2546.31 1275.05 541.26 1.07 3 138.18 33.01 -10.9 4.97 5.36 3 100.00 18.0 4239.98 2097.49 891.31 1.07 4 143.14 76.88 -8.0 7.84 7.92 3 100.00 18.0 9916.92 4843.65 1299.65 1.05 5 150.98 99.76 -8.0 7.43 7.51 4 2000.00 20.0 12888.10 6285.30 1992.35 1.05 6 158.42 129.02 -5.1 7.68 7.71 4 2000.00 20.0 16665.26 8082.16 2336.96 1.03 7 166.10 153.90 -5.1 7.68 7.71 4 2000.00 20.0 19859.64 9641.15 2758.27 1.03 8 173.78 177.90 -2.2 7.70 7.71 4 2000.00 20.0 22920.55 11108.62 3049.43 1.01 9 181.48 199.93 -2.2 7.70 7.71 4 2000.00 20.0 25710.41 12484.38 3413.47 1.01 10 189.19 135.46 0.7 4.81 4.81 4 2000.00 20.0 17390.07 8453.09 3587.73 1.00 11 194.00 157.89 0.7 5.30 5.30 4 2000.00 20.0 20212.45 9853.22 3784.58 1.00 12 199.30 166.91 0.7 5.30 5.30 4 2000.00 20.0 21286.84 10415.88 3986.82 1.00 13 204.61 256.69 3.6 7.69 7.71 4 2000.00 20.0 32583.23 16049.80 4101.72 0.98 14 212.30 272.67 3.6 7.69 7.71 4 2000.00 20.0 34421.97 17048.98 4338.78 0.98 15 220.00 285.82 6.5 7.66 7.71 4 2000.00 20.0 35918.80 17951.80 4446.59 0.98 16 227.66 298.67 6.5 7.66 7.71 4 2000.00 20.0 37417.04 18758.58 4639.37 0.98 17 235.32 307.78 9.4 7.61 7.71 3 100.00 18.0 38425.22 19468.34 4939.52 0.97 18 242.92 317.46 9.4 7.61 7.71 3 100.00 18.0 39481.80 20080.77 5076.06 0.97 19 250.53 103.00 12.3 2.42 2.48 3 100.00 18.0 12775.95 6578.61 5122.58 0.97 20 252.95 271.91 12.3 6.32 6.47 2 0.00 35.0 33704.22 17367.24 5054.71 0.92 21 259.27 276.50 12.3 6.32 6.47 2 0.00 35.0 34278.02 17660.43 5140.73 0.92 22 265.60 329.83 15.2 7.44 7.71 2 0.00 35.0 40893.85 21329.43 5149.53 0.90 23 273.04 333.22 15.2 7.44 7.71 2 0.00 35.0 41317.67 21548.68 5202.89 0.90 24 280.48 330.04 18.1 7.33 7.71 2 0.00 35.0 40925.83 21669.03 5171.43 0.90 25 287.80 330.38 18.1 .7.33 7.71 2 0.00 35.0 40967.35 21690.85 5176.65 0.90 26 295.13 174.06 21.0 3.87 4.14 2 0.00 35.0 21583.41 11635.12 5108.23 0.89 27 299.00 235.70 21.0 5.26 5.64 2 0.00 35.0 29202.24 15755.37 5078.07 0.89 28 304.26 234.29 21.0 .5.26 5.64 2 0.00 35.0 28980.23 15661.35 5040.22 0.89 29 309.53 230.84 23.9 5.24 5.73 2 0.00 35.0 28504.11 15756.43 4927.52 0.88 30 314.76 227.82 23.9 5.24 5.73 2 0.00 35.0 28081.49 15550.61 4855.36 0.88 31 320.00 118.72 23.9 2.76 3.02 2 0.00 35.0 14619.29 8103.50 4802.15 0.88 32 322.76 196.77 26.3 4.62 5.15 6 50.00 16.0 24252.73 13693.41 4977.55 1.01 33 327.38 193.10 26.8 4.62 5.18 6 50.00 16.0 23847.64 13500.55 4887.93 1.01 34 332.00 220.50 26.8 5.39 6.04 6 50.00 16.0 27293.01 15078.04 4791.49 1.01 35 337.39 116.70 29.7 2.91 3.35 6 50.00 16.0 14473.46 7906.97 4664.87 1.02 36 340.30 190.11 29.7 4.85 5.58 2 0.00 35.0 23594.13 12412.09 4246.08 0.88 37 345.15 184.53 29.7 4.85 5.58 2 0.00 35.0 22896.61 11447.70 4095.51 0.88 38 350.00 243.23 32.3 6.89 8.15 2 0.00 35.0 30162.08 14902.19 3735.30 0.88 39 356.89 212.89 32.6 6.89 8.18 2 0.00 35.0 26370.05 12708.22 3249.03 0.88 40 363.77 149.91 35.5 5.61 6.89 2 0.00 35.0 18542.18 8908.81 2747.84 0.89 41 369.39 127.44 35.5 5.61 6.89 2 0.00 35.0 15733.11 7186.34 2316.61 0.89 42 375.00 26.87 35.5 1.33 1.63 5 0.00 45.0 2955.55 1448.56 1753.34 0.79 43 376.33 31.92 38.4 1.67 2.13 5 0.00 45.0 3510.83 1742.58 1616.13 0.79 44 378.00 31.96 38.4 1.80 2.30 2 0.00 35.0 3931.38 1682.57 1748.06 0.90 45 379.80 117.00 38.4 8.61 10.99 6 50.00 16.0 14469.99 5201.98 1476.18 1.09 46 388.41 38.46 41.3 4.75 6.33 2 0.00 35.0 4807.36 824.66 729.44 0.91 47 393.17 20.49 41.3 6.83 9.09 2 0.00 35.0 2561.64 0.00 255.10 0.91 X -S Area: 8395.12 Path Length: 292.99 X -S weight: 1048012.56 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 8 Full EQ.gmf Processed: 30 Jul 2019 16:21:35 DATA: Analysis 1 - Case 8 - Full Reservoir EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 175.00 Profile: 2 (2 points) 0.00 165.00 Profile: 3 (2 points) 0.00 158.00 Profile: 4 (2 points) 0.00 132.00 Profile: 5 (2 points) 0.00 123.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 375.00 175.00 Profile: 9 (2 points) 378.00 175.00 Profile: 10 (2 points) 378.00 165.00 Profile: 11 (2 points) 378.00 158.00 Profile: 12 (2 points) 378.00 132.00 Profile: 13 (2 points) 378.00 123.00 Profile: 14 (2 points) 378.00 100.00 Profile: 15 (2 points) 375.00 97.00 Slope Surface (4 points) Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 375.00 Material beneath: 378.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 0.00 100.00 Phreatic Surface (4 points) 0.00 169.00 Failure Surface 2 - Sand and Gravel 175.00 6 - Clay 165.00 2 - Sand and Gravel 158.00 6 - Clay 132.00 2 - Sand and Gravel 123.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 175.00 2 - Sand and Gravel 175.00 6 - Clay 165.00 2 - Sand and Gravel 158.00 6 - Clay 132.00 2 - Sand and Gravel 123.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 125.00 100.00 350.00 175.00 125.00 169.00 332.00 169.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 130.00 YL: 101.67 XR: 400.00 YR: Centre: XC: 188.11 YC: 421.43 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints 440.00 175.00 440.00 169.00 175.00 325.00 Parameter descriptor: XL XR R Range of variation: 10.00 30.00 50.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 8 - Full Reservoir EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.408 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.75 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 130.00 101.67 400.00 175.00 188.11 421.43 325.00 1.747 <-- Critical Surface 2 130.00 101.67 400.00 175.00 186.41 420.34 323.98 1.768 3 130.00 101.67 400.00 175.00 188.70 419.25 322.96 1.784 4 130.00 101.67 400.00 175.00 189.00 416.15 321.94 1.802 5 129.47 101.49 400.00 175.00 187.85 421.21 325.00 1.809 6 130.00 101.67 401.58 175.00 189.41 421.19 325.00 1.811 7 130.00 101.67 400.00 175.00 189.30 417.06 320.92 1.821 8 129.47 101.49 400.00 175.00 188.15 420.11 323.98 1.827 9 130.00 101.67 401.58 175.00 189.71 420.10 323.98 1.829 10 130.00 101.67 400.00 175.00 189.59 415.96 319.90 1.839 11 129.47 101.49 400.00 175.00 188.44 419.02 322.96 1.645 12 130.00 101.67 401.58 175.00 190.00 419.00 322.96 1.647 13 130.00 101.67 400.00 175.00 189.89 414.67 318.88 1.658 14 129.47 101.49 400.00 175.00 188.74 417.93 321.94 1.863 15 130.00 101.67 401.58 175.00 190.30 417.91 321.94 1.866 16 128.95 101.32 400.00 175.00 187.59 420.98 325.00 1.870 17 129.47 101.49 401.58 175.00 189.15 420.97 325.00 1.871 18 130.00 101.67 403.16 175.00 190.71 420.95 325.00 1.873 19 130.00 101.67 400.00 175.00 190.19 413.77 317.86 1.876 20 129.47 101.49 400.00 175.00 189.04 416.83 320.92 1.881 21 130.00 101.67 401.58 175.00 190.59 416.81 320.92 1.884 22 128.95 101.32 400.00 175.70 187.89 419.89 323.98 1.888 23 129.47 101.49 401.58 175.00 189.45 419.87 323.98 1.889 24 130.00 101.67 403.16 175.00 191.00 419.85 323.98 1.890 25 130.00 101.6% 400.00 175.00 190.49 412.68 316.84 1.895 26 129.47 101.49 400.00 175.00 189.34 415.74 319.90 1.899 27 130.00 101.67 401.58 175.00 190.89 415.72 319.90 1.903 28 128.95 101.32 400.00 .175.00 188.18 416.80 322.96 1.905 29 129.47 101.49 401.58 175.00 189.74 418.78 322.96 1.907 30 130.00 101.67 403.16 175.00 191.30 416.76 322.96 1.908 31 130.00 101.67 400.00 175.00 190.79 411.58 315.82 1.914 32 129.47 101.49 400.00 175.00 189.63 414.64 318.88 1.917 33 128.95 101.32 400.00 175.00 188.48 417.70 321.94 1.922 34 130.00 101.67 401.58 175.00 191.19 414.62 318.88 1.922 35 129.47 101.49 401.58 175.00 190.04 417.68 321.94 1.925 36 130.00 101.67 403.16 175.00 191.59 417.66 321.94 1.925 37 128.95 101.32 401.58 175.00 189.89 420.74 325.00 1.930 38 129.47 101.49 403.16 175.00 190.45 420.72 325.00 1.931 39 128.42 101.14 400.00 175.00 187.33 420.76 325.00 1.932 40 130.00 101.67 400.00 175.00 191.08 410.48 314.80 1.934 41 129.47 101.49 400.00 175.00 189.93 413.55 317.86 1.936 42 130.00 101.67 404.74 175.00 192.00 420.70 325.00 1.937 43 130.00 101.67 401.58 175.00 191.48 413.52 317.66 1.941 44 129.47 101.49 401.58 175.00 190.33 416.59 320.92 1.944 45 128.42 101.14 400.00 175.00 187.63 419.66 323.98 1.945 46 129.47 101.49 403.16 175.00 190.74 419.63 323.98 1.948 47 130.00 101.67 403.16 175.00 191.88 416.56 320.92 1.948 48 128.95 101.32 400.00 175.00 188.78 416.61 320.92 1.948 49 130.00 101.67 401.58 175.00 191.78 412.42 316.84 1.951 50 130.00 101.67 400.00 175.00 191.38 409.38 313.78 1.953 51 126.95 101.32 401.58 175.00 189.19 419.65 323.98 1.953 52 129.47 101.49 400.00 175.00 190.23 412.45 316.84 1.955 53 128.95 101.32 400.00 175.00 189.08 415.51 319.90 1.959 54 128.42 101.14 400.00 175.00 187.92 416.57 322.96 1.959 55 130.00 101.67 400.00 175.00 191.68 406.28 312.76 1.961 56 130.00 101.67 404.74 175.00 192.29 419.60 323.98 1.961 57 128.95 101.32 401.58 175.00 189.48 418.55 322.96 1.965 58 130.00 101.67 404.74 175.00 192.58 418.50 322.96 1.966 59 130.00 101.67 403.16 175.00 192.18 415.46 319.90 1.966 60 130.00 101.67 401.58 175.00 192.08 411.32 315.82 1.970 61 129.47 101.49 403.16 175.00 191.03 418.53 322.96 1.970 62 129.47 101.49 401.58 175.00 190.63 415.49 319.90 1.973 63 128.95 101.32 400.00 175.00 189.37 414.42 318.88 1.974 64 128.42 101.14 400.00 175.00 188.22 417.48 321.94 1.974 65 129.47 101.49 400.00 175.00 190.83 410.25 314.80 1.975 66 129.47 101.49 401.56 175.00 190.93 414.39 318.88 1.975 67 127.89 100.96 400.00 175.00 187.07 420.53 325.00 1.976 68 129.47 101.49 400.00 175.00 190.53 411.35 315.82 1.977 69 130.00 101.67 403.16 175.00 192.47 414.36 318.88 1.979 70 128.95 101.32 403.16 175.00 190.18 420.49 325.00 1.979 71 128.42 101.14 401.58 175.00 188.63 420.51 325.00 1.981 72 128.95 101.32 401.58 175.00 189.78 417.46 321.94 1.981 73 129.47 101.49 404.74 175.00 191.74 420.47 325.00 1.982 74 128.95 101.32 400.00 175.00 189.67 413.32 317.86 1.983 75 128.95 101.32 401.58 175.00 190.07 416.36 320.92 1.986 76 129.47 101.49 403.16 175.00 191.33 417.43 321.94 1.987 77 129.47 101.49 401.58 175.00 191.22 413.29 317.86 1.988 78 128.42 101.14 400.00 175.00 188.52 416.38 320.92 1.990 79 130.00 101.67 401.58 175.00 192.37 410.22 314.80 1.990 80 127.89 100.96 400.00 175.00 187.37 419.44 323.98 1.991 81 130.00 101.67 400.00 175.00 191.98 407.18 311.73 1.992 82 128.95 101.32 403.16 175.00 190.48 419.40 323.98 1.992 83 128.42 101.14 400.00 175.00 188.82 415.29 319.90 1.993 84 128.42 101.14 401.58 175.00 188.93 419.42 323.98 1.993 85 130.00 101.67 404.74 175.00 192.86 417.41 321.94 1.995 86 128.42 101.14 401.58 175.00 189.22 418.32 322.96 1.995 87 129.47 101.49 403.16 175.00 191.62 416.33 320.92 1.995 88 130.00 101.67 404.74 175.00 193.17 416.31 320.92 1.996 89 130.00 101.67 401.58 175.00 192.67 409.12 313.78 1.996 90 129.47 101.49 401.58 175.00 191.52 412.19 316.84 1.997 91 128.95 101.32 400.00 175.00 189.97 412.22 316.84 1.997 92 130.00 101.67 406.32 175.00 193.29 420.45 325.00 1.998 93 130.00 101.67 403.16 175.00 192.77 413.26 317.86 1.998 94 129.47 101.49 400.00 175.00 191.13 409.15 313.78 1.998 95 130.00 101.67 400.00 175.00 192.28 406.08 310.71 1.998 96 130.00 101.67 406.32 175.00 193.58 419.35 323.98 1.999 97 130.00 101.67 403.16 175.00 193.07 412.16 316.84 1.999 98 129.47 101.49 404.74 175.00 192.03 419.37 323.98 2.000 99 130.00 101.67 400.00 175.00 192.58 404.97 309.69 2.000 Critical Failure Surface (circle 1) Intersects: XL: 130.00 YL: Centre: XC: 188.11 YC: Generated failure surface: (20 points) 130.00 101.67 145.04 205.79 96.91 220.97 280.62 109.87 295.10 350.39 139,85 363.40 101.67 421.43 XR: 400.00 Radius: YR: 175.00 R: 325.00 99.30 160.17 97.63 175.36 96.68 190.58 96.44 98.09 236.07 99.99 251.07 102.59 265.93 105.88 114.55 309.35 119.89 323.34 125.90 337.03 132.56 147.75 376.02 156.26 388.73 165.35 400.00 175.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 130.00 6.86 -9.0 5.29 5.35 2 0.00 35.0 857.61 22625.81 4314.32 1.08 2 135.29 20.58 -9.0 5.29 5.35 2 0.00 35.0 2572.83 22904.11 4539.76 1.08 3 140.57 28.05 -9.0 4.46 4.52 3 100.00 18.0 3531.89 19550.37 4748.06 1.04 4 145.04 68.53 -6.3 7.57 7.61 3 100.00 18.0 8701.79 33300.12 4979.07 1.03 5 152.60 93.90 -6.3 7.57 7.61 3 100.00 18.0 11973.59 33695.05 5258.86 1.03 6 160.17 76.11 -3.6 5.04 5.05 3 100.00 18.0 9717.12 22557.44 5463.34 1.01 7 165.21 86.18 -3.6 5.04 5.05 3 100.00 18.0 11002.45 22657.33 5614.77 1.01 8 170.25 97.45 -3.6 5.10 5.11 4 2000.00 20.0 12438.66 23023.20 5838.01 1.02 9 175.36 163.11 -0.9 7.61 7.61 4 2000.00 20.0 20800.48 34373.93 5935.23 1.00 10 182.97 183.33 -0.9 7.61 7.61 4 2000.00 20.0 23342.54 34431.13 6111.55 1.00 11 190.58 88.78 1.8 3.42 3.42 4 2000.00 20.0 11290.25 15494.97 6158.25 0.99 12 194.00 161.22 1.8 5.90 5.90 4 2000.00 20.0 20440.67 26633.86 6229.66 0.99 13 199.90 171.73 1.8 5.90 5.90 4 2000.00 20.0 21678.92 26566.55 6316.43 0.99 14 205.79 34.47 4.5 1.14 1.15 4 2000.00 20.0 4341.04 5152.91 6293.53 0.99 15 206.93 218.96 4.5 7.02 7.04 3 100.00 18.0 27483.29 31498.20 6412.93 0.99 16 213.95 231.53 4.5 7.02 7.04 3 100.00 18.0 28911.00 31257.92 6469.16 0.99 17 220.97 261.89 7.1 7.55 7.61 3 100.00 18.0 32568.85 33448.65 6487.85 0.98 16 228.52 273.75 7.1 7.55 7.61 3 100.00 18.0 33937.13 32999.14 6510.08 0.98 19 236.07 282.23 9.8 7.50 7.61 2 0.00 35.0 34941.34 32465.94 6426.81 0.95 20 243.57 291.23 9.8 7.50 7.61 2 0.00 35.0 36066.75 31849.00 6416.03 0.95 21 251.07 296.09 12.5 7.43 7.61 2 0.00 35.0 36676.57 31148.97 6342.40 0.94 22 258.50 302.24 12.5 7.43 7.61 2 0.00 35.0 37445.65 30366.09 6287.11 0.94 23 265.93 303.47 15.2 7.34 7.61 2 0.00 35.0 37603.45 29500.76 6168.33 0.93 24 273.27 306.80 15.2 7.34 7.61 2 0.00 35.0 38019.83 28553.53 6069.45 0.93 25 280.62 304.49 17.9 7.24 7.61 2 0.00 35.0 37735.04 27524.97 5907.10 0.93 26 287.86 305.05 17.9 7.24 7.61 2 0.00 35.0 37805.52 26415.35 5765.62 0.93 27 295.10 163.97 20.6 3.90 4.16 2 0.00 35.0 20320.80 13953.71 5602.78 0.93 28 299.00 216.84 20.6 5.18 5.53 2 0.00 35.0 26849.73 17949.27 5482.50 0.93 29 304.18 215.72 20.6 5.18 5.53 2 0.00 35.0 26665.17 17279.26 5342.04 0.93 30 309.35 298.15 23.2 7.23 7.87 2 0.00 35.0 36775.27 23365.14 5110.03 0.93 31 316.59 138.82 23.2 3.41 3.71 6 50.00 16.0 17101.32 10485.70 5124.52 1.02 32 320.00 134.85 23.2 3.34 3.64 6 50.00 16.0 16625.60 9939.24 5019.17 1.02 33 323.34 342.51 25.9 8.66 9.63 6 50.00 16.0 42338.25 24632.68 4787.23 1.03 34 332.00 149.97 25.9 3.89 4.32 6 50.00 16.0 18591.83 10231.02 4592.86 1.03 35 335.89 43.67 25.9 1.14 1.27 2 0.00 35.0 5419.27 2912.50 4341.52 0.93 36 337.03 242.77 28.6 6.49 7.39 2 0.00 35.0 30118.92 15985.12 4199.08 0.93 37 343.51 233.84 28.6 6.49 7.39 2 0.00 35.0 29003.27 14354.11 4018.31 0.93 38 350.00 223.45 31.1 6.70 7.83 2 0.00 35.0 27696.81 13361.04 3661.27 0.94 39 356.70 196.17 31.3 6.70 7.84 2 0.00 35.0 24286.59 11390.35 3199.84 0.94 40 363.40 146.72 34.0 5.80 7.00 2 0.00 35.0 18137.49 8421.93 2717.64 0.95 41 369.20 124.04 34.0 5.80 7.00 2 0.00 35.0 15302.12 6715.02 2280.93 0.95 42 375.00 55.15 35.8 3.00 3.70 5 0.00 45.0 6066.19 2856.97 1657.27 0.87 43 378.00 75.39 36.7 4.88 6.08 6 50.00 16.0 9291.36 3587.28 1741.85 1.11 44 382.88 57.67 36.7 4.88 6.08 6 50.00 16.0 7163.84 2208.09 1328.68 1.11 45 387.76 39.46 39.1 4.92 6.34 2 0.00 35.0 4932.71 798.52 786.92 0.97 46 392.68 21.95 39.3 7.32 9.46 2 0.00 35.0 2744.25 0.00 282.26 0.97 X -S Area: 7779.15 Path Length: 289.20 X -S Weight: 967315.06 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 9 RD EQ.gmf Processed: 30 Jul 2019 16:58:00 DATA: Analysis 1 - Case 9 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (19 profiles) Profile: 1 (2 points) 0.00 200.00 Profile: 2 (2 points) 0.00 198.00 Profile: 3 (2 points) 0.00 189.00 Profile: 4 (2 points) 0.00 151.00 Profile: 5 (2 points) 0.00 148.00 Profile: 6 (2 points) 0.00 125.00 Profile: 7 (2 points) 0.00 122.00 Profile: 8 (2 points) 0.00 100.00 Profile: 9 (2 points) 0.00 97.00 Profile: 10 (2 points) 425.00 200.00 Profile: 11 (2 points) 428.00 200.00 Profile: 12 (2 points) 428.00 198.00 Profile: 13 (2 points) 428.00 189.00 Profile: 14 (2 points) 428.00 151.00 Profile: 15 (2 points) 428.00 148.00 Profile: 16 (2 points) 428.00 125.00 Profile: 17 (2 points) 428.00 122.00 Profile: 18 (2 points) 428.00 100.00 Profile: 19 (2 points) 425.00 97.00 Slope Surface (4 points) - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00- - Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 428.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 0.00 100.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and Gravel 189.00 6 - Clay 151.00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and Gravel 189.00 6 - Clay 151.00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97 00 100.00 100.00 100.00 100.00 400.00 200.00 382.00 194.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 102.00 YL: 100.67 XR: 458.21 YR: Centre: XC: 198.70 YC: 442.24 Radius: R: 470.00 200.00 470.00 194.00 200.00 355.00 Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: XL XR R Range of variation: 4.00 4.00 30.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 9 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.337 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.30 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 102.00 100.67 458.21 200.00 198.70 442.24 355.00 1.302 <-- Critical Surface 2 102.00 100.67 458.42 200.00 198.87 442.19 355.00 1.302 3 102.00 100.67 458.21 200.00 198.90 441.55 354.39 1.303 4 102.00 100.67 458.00 200.00 198.92 440.91 353.78 1.303 5 102.00 100.67 458.63 200.00 199.04 442.15 355.00 1.303 6 101.79 100.60 458.21 200.00 196.61 442.14 355.00 1.303 7 102.00 100.67 458.00 200.00 196.54 442.29 355.00 1.303 8 101.79 100.60 458.42 200.00 196.77 442.09 355.00 1.304 9 102.00 100.67 458.00 200.00 198.73 441.60 354.39 1.304 10 100.11 100.04 458.00 200.00 198.06 439.98 353.78 1.305 11 101.79 100.60 458.00 200.00 198.44 442.19 355.00 1.305 12 100.11 100.04 458.21 200.00 198.04 440.62 354.39 1.305 13 100.11 100.04 458.63 200.00 198.17 441.22 355.00 1.305 14 100.11 100.04 458.00 200.00 197.87 440.67 354.39 1.305 15 100.11 100.04 458.42 200.00 198.01 441.27 355.00 1.306 16 102.00 100.67 458.42 200.00 199.06 441.50 354.39 1.306 17 100.11 100.04 458.21 200.00 197.84 441.32 355.00 1.306 18 102.00 100.67 458.21 200.00 199.09 440.86 353.78 1.306 19 101.79 100.60 458.00 200.00 198.63 441.50 354.39 1.306 20 100.11 100.04 458.00 200.00 197.68 441.36 355.00 1.306 21 102.00 100.67 458.00 200.00 199.12 440.21 353.16 1.306 22 102.00 100.67 458.84 200.00 199.20 442.10 355.00 1.306 23 102.00 100.67 458.63 200.00 199.23 441.46 354.39 1.306 24 102.00 100.67 458.42 200.00 199.26 440.81 353.78 1.307 25 101.58 100.53 458.00 200.00 198.35 442.08 355.00 1.307 26 101.79 100.60 458.21 200.00 198.80 441.45 354.39 1.307 27 102.00 100.67 456.21 200.00 199.28 440.17 353.16 1.307 28 102.00 100.67 459.05 200.00 199.37 442.05 355.00 1.307 29 101.79 100.60 458.00 200.00 198.83 440.80 353.78 1.307 30 102.00 100.67 458.84 200.00 199.40 441.41 354.39 1.307 31 102.00 100.67 458.00 200.00 199.31 439.52 352.55 1.307 32 101.79 100.60 458.63 200.00 198.94 442.04 355.00 1.307 33 102.00 100.67 458.63 200.00 199.42 440.76 353.78 1.307 34 101.79 100.60 458.42 200.00 198.97 441.40 354.39 1.307 35 101.58 100.53 458.21 200.00 198.51 442.04 355.00 1.307 36 102.00 100.67 458.42 200.00 199.45 440.12 353.16 1.308 37 101.79 100.60 458.21 200.00 198.99 440.76 353.78 1.308 38 101.58 100.53 458.00 200.00 198.54 441.39 354.39 1.308 39 102.00 100.67 459.26 200.00 199.54 442.01 355.00 1.308 40 102.00 100.67 458.21 200.00 199.47 439.47 352.55 1.308 41 102.00 100.67 459.05 200.00 199.56 441.36 354.39 1.308 42 102.00 100.67 458.21 200.00 200.64 435.31 348.88 1.308 43 101.79 100.60 458.00 200.00 199.02 440.11 353.16 1.308 44 101.79 100.60 458.84 200.00 199.11 442.00 355.00 1.308 45 102.00 100.67 458.63 200.00 200.77 435.91 349.49 1.308 46 102.00 100.67 458.84 200.00 199.59 440.72 353.78 1.308 47 102.00 100.67 458.00 200.00 199.50 438.83 351.94 1.308 48 101.79 100.60 458.63 200.00 199.13 441.35 354.39 1.308 49 102.00 100.67 458.00 200.00 200.47 435.36 348.88 1.308 50 101.79 100.60 458.00 200.00 200.38 435.26 348.88 1.308 51 101.58 100.53 458.42 200.00 198.68 441.99 355.00 1.308 52 102.00 100.67 459.05 200.00 200.91 436.51 350.10 1.308 53 102.00 100.67 458.42 200.00 200.61 435.96 349.49 1.308 54 102.00 100.67 456.63 200.00 199.61 440.07 353.16 1.308 55 101.79 100.60 458.42 200.00 199.16 440.71 353.76 1.308 56 102.00 100.67 458.84 200.00 200.75 436.55 350.10 1.308 57 101.58 100.53 458.21 200.00 198.70 441.34 354.39 1.308 58 102.00 100.67 459.47 200.00 199.70 441.96 355.00 1.308 59 102.00 100.67 461.16 200.00 201.41 440.19 353.78 1.308 60 102.00 100.67 458.42 200.00 199.64 439.43 352.55 1.308 61 101.79 100.60 458.21 200.00 199.19 440.06 353.16 1.308 62 102.00 100.67 458.21 200.00 200.44 436.01 349.49 1.308 63 101.79 100.60 458.21 200.00 200.35 435.90 349.49 1.308 64 101.79 100.60 459.05 200.00 199.27 441.95 355.00 1.308 65 101.58 100.53 458.00 200.00 198.73 440.70 353.78 1.308 66 102.00 100.67 459.26 200.00 199.73 441.31 354.39 1.308 67 102.00 100.67 459.26 200.00 200.68 437.15 350.71 1.309 68 102.00 100.67 458.63 200.00 200.58 436.60 350.10 1.309 69 101.79 100.60 458.63 200.00 200.49 436.50 350.10 1.309 70 102.00 100.67 458.21 200.00 199.67 438.78 351.94 1.309 71 101.79 100.60 458.84 200.00 199.30 441.31 354.39 1.309 72 101.79 100.60 458.00 200.00 199.21 439.42 352.55 1.309 73 102.00 100.67 459.68 200.00 201.02 437.75 351.33 1.309 74 102.00 100.67 459.05 200.00 199.75 440.67 353.78 1.309 75 102.00 100.67 458.00 200.00 200.28 436.05 349.49 1.309 76 101.58 100.53 458.63 200.00 198.84 441.94 355.00 1.309 77 101.79 100.60 458.00 200.00 200.18 435.95 349.49 1.309 78 101.58 100.53 458.00 200.00 200.09 435.85 349.49 1.309 79 102.00 100.67 460.74 200.00 201.27 439.59 353.16 1.309 80 102.00 100.67 459.05 200.00 200.72 437.20 350.71 1.309 81 101.79 100.60 459.05 200.00 200.62 437.10 350.71 1.309 82 102.00 100.67 458.42 200.00 200.41 436.65 350.10 1.309 83 101.79 100.60 458.42 200.00 200.32 436.55 350.10 1.309 84 102.00 100.67 458.84 200.00 199.78 440.02 353.16 1.309 85 102.00 100.67 460.11 200.00 201.16 438.35 351.94 1.309 86 101.79 100.60 458.63 200.00 199.33 440.66 353.78 1.309 87 102.00 100.67 458.00 200.00 199.70 436.14 351.33 1.309 88 102.00 100.67 458.84 200.00 200.55 437.25 350.71 1.309 89 102.00 100.67 459.47 200.00 200.86 437.80 351.33 1.309 90 101.58 100.53 458.42 200.00 198.87 441.30 354.39 1.309 91 101.79 100.60 458.84 200.00 200.46 437.15 350.71 1.309 92 102.00 100.67 460.95 200.00 201.25 440.24 353.78 1.309 93 102.00 100.67 459.68 200.00 199.87 441.91 355.00 1.309 94 101.37 100.46 458.21 200.00 198.42 441.93 355.00 1.309 95 102.00 100.67 458.63 200.00 199.81 439.38 352.55 1.309 96 101.79 100.60 461.16 200.00 201.13 440.78 354.39 1.309 97 101.79 100.60 458.42 200.00 199.35 440.02 353.16 1.309 98 102.00 100.67 459.89 200.00 201.00 436.40 351.94 1.309 99 102.00 100.67 458.21 200.00 200.25 436.70 350.10 1.309 Critical Failure Surface (circle 1) Intersects: XL: 102.00 YL: 100.67 Centre: XC: 198.70 YC: 442.24 Generated failure surface: (20 points) 102.00 100.67 121.85 95.66 203.12 87.27 223.57 88.11 303.88 103.18 323.25 109.81 395.95 147.09 412.64 158.94 XR: 458.21 Radius: 141.95 243.94 342.20 428.61 91.81 90.14 117.54 171.75 YR: R: Slice Geometry and Properties - Critical Failure Surface (circle 1, 49 slices) 200.00 355.00 162.24 264.16 360.68 443.82 89.12 93.33 126.35 185.45 182.66 87.60 284.16 97.68 378.61 136.21 458.21 200.00_ Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 102.00 2.05 -14.2 2.64 2.73 2 0.00 35.0 255.70 131.64 104.34 1.19 2 104.64 19.56 -14.2 5.95 6.13 3 100.00 18.0 2516.52 1258.84 458.44 1.10 3 110.59 40.27 -14.2 5.95 6.13 3 100.00 18.0 5248.25 2591.74 934.01 1.10 4 116.54 53.45 -14.2 5.31 5.48 4 2000.00 20.0 6993.45 3439.95 1786.25 1.11 5 121.85 143.34 -10.9 10.05 10.23 4 2000.00 20.0 18770.24 9107.24 2233.91 1.08 6 131.90 196.38 -10.9 10.05 10.23 4 2000.00 20.0 25710.77 12477.53 2944.85 1.08 7 141.95 248.98 -7.5 10.15 10.23 4 2000.00 20.0 32561.01 15671.83 3485.18 1.05 8 152.10 296.93 -7.5 10.15 10.23 4 2000.00 20.0 38773.18 18690.17 4109.67 1.05 9 162.24 121.71 -4.2 3.76 3.77 4 2000.00 20.0 15875.81 7615.37 4388.69 1.02 10 166.00 314.94 -4.2 9.00 9.02 4 2000.00 20.0 40955.41 19706.43 4717.13 1.02 11 175.00 293.90 -4.2 7.66 7.68 4 2000.00 20.0 38105.85 18389.55 5148.30 1.02 12 182.66 427.10 -0.9 10.23 10.23 4 2000.00 20.0 55277.12 26654.56 5439.94 1.00 13 192.89 463.72 -0.9 10.23 10.23 4 2000.00 20.0 59882.38 28940.09 5891.01 1.00 14 203.12 496.96 2.4 10.23 10.23 4 2000.00 20.0 64014.83 31036.66 6160.49 0.99 15 213.35 527.50 2.4 10.23 10.23 4 2000.00 20.0 67762.86 32943.80 6524.96 0.99 16 223.57 552.71 5.7 10.18 10.23 4 2000.00 20.0 70790.25 34658.53 6706.10 0.98 17 233.76 576.99 5.7 10.18 10.23 4 2000.00 20.0 73660.20 36180.90 6984.30 0.98 18 243.94 531.08 9.0 9.06 9.17 4 2000.00 20.0 67507.98 33550.32 7061.06 0.97 19 253.00 674.32 9.0 11.16 11.30 4 2000.00 20.0 85303.88 42598.91 7246.35 0.97 20 264.16 521.94 12.3 8.43 8.63 4 2000.00 20.0 65765.32 33331.09 7256.13 0.96 21 272.60 530.17 12.3 8.43 8.63 4 2000.00 20.0 66546.57 33856.77 7346.93 0.96 22 281.03 198.94 12.3 3.13 3.21 3 100.00 18.0 24907.27 12704.67 7731.79 0.97 23 284.16 531.53 15.6 8.31 8.63 3 100.00 18.0 66346.63 34433.25 7700.41 0.97 24 292.48 735.14 15.6 11.40 11.84 2 0.00 35.0 91550.56 47623.04 7506.22 0.90 25 303.88 626.89 18.9 9.68 10.23 2 0.00 35.0 78071.36 41344.01 7437.06 0.89 26 313.56 626.07 18.9 9.68 10.23 2 0.00 35.0 77968.60 41269.79 7427.27 0.89 27 323.25 608.94 22.2 9.48 10.23 2 0.00 35.0 75832.91 41037.05 7283.81 0.89 28 332.72 602.24 22.2 9.48 10.23 2 0.00 35.0 74995.97 40585.83 7203.45 0.89 29 342.20 585.30 25.5 9.36 10.37 2 0.00 35.0 72882.02 40462.79 6992.84 0.88 30 351.56 386.30 25.5 6.29 6.97 6 50.00 16.0 48145.91 26705.43 7273.00 1.00 31 357.85 171.54 25.5 2.82 3.13 2 0.00 35.0 21400.19 11858.82 6805.33 0.88 32 360.68 378.54 28.8 6.32 7.22 2 0.00 35.0 47222.70 26954.64 6615.96 0.88 33 367.00 672.69 28.8 11.61 13.25 2 0.00 35.0 83799.98 47900.24 6393.63 0.88 34 378.61 190.18 32.1 3.39 4.00 2 0.00 35.0 23646.48 14009.17 6105.92 0.68 35 382.00 328.72 32.1 6.00 7.08 2 0.00 35.0 40819.96 23772.52 5933.64 0.88 36 388.00 318.13 32.1 6.00 7.08 2 0.00 35.0 39436.87 22108.65 5702.02 0.88 37 394.00 101.29 32.1 1.95 2.31 2 0.00 35.0 12544.64 6839.25 5549.72 0.88 38 395.95 205.57 35.4 4.05 4.96 6 50.00 16.0 25464.27 14088.46 5801.55 1.06 39 400.00 72.34 35.4 1.46 1.79 6 50.00 16.0 8973.53 4867.51 5654.81 1.06 40 401.46 503.23 35.4 11.18 13.71 2 0.00 35.0 62401.44 33393.20 4712.75 0.89 41 412.64 238.47 38.7 6.18 7.92 2 0.00 35.0 29530.95 16104.22 3950.63 0.90 42 418.82 207.85 38.7 6.18 7.92 2 0.00 35.0 25702.95 13655.29 3424.78 0.90 43 425.00 89.84 38.7 3.00 3.64 5 0.00 45.0 9861.69 5744.51 2608.15 0.79 44 428.00 199.63 41.8 7.91 10.60 2 0.00 35.0 24597.37 12732.02 2490.48 0.91 45 435.91 143.28 42.0 7.91 10.64 2 0.00 35.0 17553.90 8048.11 1741.88 0.91 46 443.82 44.91 45.3 3.51 5.00 2 0.00 35.0 5455.28 2113.77 1154.31 0.92 47 447.33 42.03 45.3 4.94 7.03 6 50.00 16.0 5093.01 1097.00 639.03 1.16 48 452.28 15.82 45.3 3.96 5.63 6 50.00 16.0 1938.32 0.00 368.98 1.16 49 456.23 1.98 45.3 1.98 2.81 2 0.00 35.0 247.24 0.00 80.97 0.92 X -S Area: 15861.40 Path Length: 388.91 X -S Weight: 1998690.00 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 9 Full EQ.gmf Processed: 30 Jul 2019 17:01:20 DATA: Analysis 1 - Case 9 - Full Reservoir EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (19 profiles) Profile: 1 0.00 Profile: 2 0.00 Profile: 3 0.00 Profile: 4 0.00 Profile: 5 0.00 Profile: 6 0.00 Profile: 7 0.00 Profile: 8 0.00 Profile: 9 0.00 Profile: 10 425.00 Profile: 11 428.00 Profile: 12 428.00 Profile: 13 428.00 Profile: 14 428.00 Profile: 15 428.00 Profile: 16 428.00 Profile: 17 428.00 Profile: 18 428.00 Profile: 19 425.00 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 Slope Surface 0.00 points) 200.00 points) 198.00 points) 189.00 points) 151.00 points) 148.00 points) 125.00 points) 122.00 points) 100.00 points) 97.00 points) 200.00 points) 200.00 points) 198.00 points) 189.00 points) 151.00 points) 148.00 points) 125.00 points) 122.00 points) 100.00 points) 97.00 (4 points) 100.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 425.00 Material beneath: 428.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Material beneath: 470.00 Phreatic Surface (4 points) 0.00 194.00 Failure Surface 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and Gravel 189.00 6 - Clay 151.00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 198.00 2 - Sand and Gravel 189.00 6 - Clay 151.00 2 - Sand and Gravel 148.00 6 - Clay 125.00 2 - Sand and Gravel 122.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 100.00 194.00 400.00 200.00 382.00 194.00 470.00 200.00 470.00 194.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 100.11 YL: 100.04 XR: 458.00 YR: 200.00 Centre: XC: 197.68 YC: 441.36 Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: XL XR R Range of variation: 4.00 4.00 30.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 9 - Full Reservoir EQ Bishop Simplified Method of Analysis - Circular Failure Surface Radius: R: 355.00 Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.245 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.78 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 100.11 100.04 456.00 200.00 197.68 441.36 355.00 1.784 <-- Critical Surface 2 100.11 100.04 458.21 200.00 197.64 441.32 355.00 1.784 3 100.11 100.04 458.00 200.00 197.67 440.67 354.39 1.785 4 100.11 100.04 456.42 200.00 198.01 441.27 355.00 1.785 5 100.11 100.04 458.21 200.00 198.04 440.62 354.39 1.785 6 100.11 100.04 458.00 200.00 198.06 439.98 353.78 1.785 7 100.11 100.04 458.63 200.00 198.17 441.22 355.00 1.785 8 100.11 100.04 458.42 200.00 198.20 440.58 354.39 1.792 9 100.11 100.04 458.84 200.00 198.34 441.17 355.00 1.792 10 100.11 100.04 458.21 200.00 198.23 439.93 353.78 1.793 11 100.11 100.04 458.63 200.00 198.37 440.53 354.39 1.793 12 100.11 100.04 458.00 200.00 198.26 439.29 353.16 1.794 13 100.11 100.04 459.05 200.00 198.51 441.12 355.00 1.794 14 100.11 100.04 458.42 200.00 198.40 439.88 353.78 1.794 15 100.11 100.04 458.84 200.00 198.53 440.48 354.39 1.95 16 100.11 100.04 458.21 200.00 198.42 439.24 353.16 1.795 17 100.11 100.04 459.26 200.00 198.67 441.08 355.00 1.796 18 100.11 100.04 458.63 200.00 196.56 439.83 353.78 1.796 19 100.11 100.04 458.00 200.00 198.45 438.59 352.55 1.796 20 100.11 100.04 459.05 200.00 198.70 440.43 354.39 1.796 21 100.11 100.04 458.42 200.00 198.59 439.19 353.16 1.796 22 100.11 100.04 458.84 200.00 198.73 439.79 353.78 1.797 23 100.11 100.04 459.47 200.00 198.84 441.03 355.00 1.797 24 100.11 100.04 458.21 200.00 198.62 438.54 352.55 1.797 25 100.11 100.04 459.26 200.00 198.87 440.38 354.39 1.798 26 100.11 100.04 458.63 200.00 198.75 439.14 353.16 1.798 27 100.11 100.04 458.00 200.00 198.64 437.90 351.94 1.798 28 100.11 100.04 459.05 200.00 196.89 439.74 353.78 1.798 29 100.11 100.04 459.68 200.00 199.01 440.98 355.00 1.798 30 100.11 100.04 458.42 200.00 196.78 438.49 352.55 1.799 31 100.11 100.04 458.84 200.0D 196.92 439.09 353.16 1.799 32 100.11 100.04 459.47 200.00 199.03 440.34 354.39 1.799 33 100.11 100.04 458.21 200.00 198.81 437.85 351.94 1.800 34 100.11 100.04 459.89 200.00 199.1" 440.93 355.00 1.800 35 100.11 100.04 459.26 200.00 199.06 439.69 353.78 1.800 36 100.11 100.04 458.63 200.00 198.95 438.45 352.55 1.800 37 100.11 100.04 458.00 200.00 196.84 437.20 351.33 1.800 38 100.11 100.04 459.05 200.00 199.09 439.04 353.16 1.801 39 100.11 100.04 459.68 200.00 199.20 440.29 354.39 1.801 40 100.11 100.04 456.42 200.00 198.98 437.60 351.94 1.801 41 100.11 100.04 460.11 200.00 199.34 440.88 355.00 1.801 42 100.11 100.04 459.47 200.00 199.23 439.64 353.78 1.802 43 100.11 100.04 458.84 200.00 199.11 438.40 352.55 1.802 44 100.11 100.04 458.21 200.00 199.00 437.15 351.33 1.802 45 100.11 100.04 459.89 200.00 199.36 440.24 354.39 1.802 46 100.11 100.04 459.26 200.00 199.25 439.00 353.16 1.802 47 100.11 100.04 458.63 200.00 199.14 437.75 351.94 1.802 48 100.11 100.04 458.00 200.00 199.03 436.51 350.71 1.803 49 100.11 100.04 460.32 200.00 199.50 440.84 355.00 1.803 50 100.11 100.04 459.05 200.00 199.28 438.35 352.55 1.803 51 100.11 100.04 459.68 200.00 199.39 439.59 353.78 1.803 52 100.11 100.04 458.42 200.00 199.17 437.11 351.33 1.803 53 100.11 100.04 460.53 200.00 199.67 440.79 355.00 1.804 54 100.11 100.04 460.11 200.00 199.53 440.19 354.39 1.804 55 100.11 100.04 459.47 200.00 199.42 438.95 353.16 1.804 56 100.11 100.04 458.84 200.00 199.31 437.70 351.94 1.804 57 100.11 100.04 458.21 200.00 199.20 436.46 350.71 1.804 58 100.11 100.04 460.74 200.00 199.63 440.74 355.00 1.805 59 100.11 100.04 459.89 200.00 199.56 439.54 353.78 60 100.11 100.04 459.26 200.00 199.45 438.30 352.55 61 100.11 100.04 458.63 200.00 199.34 437.06 351.33 62 100.11 100.04 460.32 200.00 199.70 440.14 354.39 63 100.11 100.04 458.00 200.00 199.23 435.81 350.10 64 100.11 100.04 459.05 200.00 199.47 437.65 351.94 65 100.11 100.04 459.68 200.00 199.58 438.90 353.16 66 100.11 100.04 460.95 200.00 200.00 440.69 355.00 67 100.11 100.04 458.42 200.00 199.36 436.41 350.71 68 100.11 100.04 460.53 200.00 199.86 440.09 354.39 69 100.11 100.04 460.11 200.00 199.72 439.50 353.78 70 100.11 100.04 459.47 200.00 199.61 438.25 352.55 71 100.11 100.04 458.84 200.00 199.50 437.01 351.33 72 100.11 100.04 458.21 200.00 199.39 435.76 350.10 73 100.11 100.04 461.16 200.00 200.17 440.64 355.00 74 100.11 100.04 460.74 200.00 200.03 440.04 354.39 75 100.11 100.04 459.89 200.00 199.75 438.85 353.16 76 100.11 100.04 460.32 200.00 199.69 439.45 353.78 77 100.11 100.04 459.26 200.00 199.64 437.61 351.94 78 100.11 100.04 456.63 200.00 199.53 436.36 350.71 79 100.11 100.04 458.00 200.00 199.42 435.12 349.49 80 100.11 100.04 461.37 200.00 200.33 440.59 355.00 81 100.11 100.04 459.68 200.00 199.78 438.20 352.55 82 100.11 100.04 460.95 200.00 200.19 440.00 354.39 83 100.11 100.04 460.53 200.00 200.05 439.40 353.78 84 100.11 100.04 459.05 200.00 199.67 436.96 351.33 85 100.11 100.04 460.11 200.00 199.92 438.80 353.16 86 100.11 100.04 458.42 200.00 199.56 435.71 350.10 87 100.11 100.04 459.47 200.00 199.61 437.56 351.94 88 100.11 100.04 458.84 200.00 199.70 436.31 350.71 89 100.11 100.04 461.16 200.00 200.36 439.95 354.39 90 100.11 100.04 460.74 200.00 200.22 439.35 353.78 91 100.11 100.04 460.32 200.00 200.08 438.75 353.16 92 100.11 100.04 458.21 200.00 199.59 435.07 349.49 93 100.11 100.04 459.89 200.00 199.94 438.15 352.55 94 100.11 100.04 459.26 200.00 199.83 436.91 351.33 95 100.11 100.04 458.63 200.00 199.72 435.67 350.10 96 100.11 100.04 461.37 200.00 200.52 439.90 354.39 97 100.11 100.04 460.95 200.00 200.39 439.30 353.78 96 100.11 100.04 458.00 200.00 199.62 434.42 348.88 99 100.11 100.04 460.53 200.00 200.25 438.70 353.16 Critical Failure Surface (circle 1) Intersects: XL: 100.11 YL: Centre: KC: 197.68 YC: Generated failure surface: (20 points) 100.11 100.04 120.05 201.75 86.39 222.31 303.05 102_36 322.51 395.55 146.63 412.30 100.04 441.36 94.95 87.22 109.04 158.59 XR: 458.00 YR: Radius: R: 140.25 91.04 242.79 89.24 341.56 116.83 428.33 171.50 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) 200.00 355.00 160.65 263.12 360.13 443.58 1.805 1.805 1.805 1.805 1.805 1.805 1.805 1.805 1.806 1.806 1.806 1.606 1.806 1.807 1.807 1.807 1.807 1.807 1.807 1.807 1.808 1.608 1.808 1.608 1.608 1.808 1.808 1.808 1.809 1.809 1.809 1.809 1.809 1.609 1.810 1.810 1.810 1.810 1.810 1.810 1.811 88.30 92.45 125.71 185.32 181.17 283.23 378.14 458.00 86.75 96.83 135.66 200.00 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 100.00 41.74 82.9 12.02 97.74 3 100.00 18.0 5499.39 582274.19 5871.63 3.29 2 112.02 75.21 -14.3 8.03 8.29 4 2000.00 20.0 9917.47 50676.38 7104.29 1.09 3 120.05 145.37 -11.0 10.10 10.29 4 2000.00 20.0 19145.17 64224.31 7506.08 1.06 4 130.15 199.17 -11.0 10.10 10.29 4 2000.00 20.0 26186.14 65481.53 8007.96 1.06 5 140.25 252.54 -7.6 10.20 10.29 4 2000.00 20.0 33142.10 66550.41 8374.82 1.04 6 150.45 301.18 -7.6 10.20 10.29 4 2000.00 20.0 39444.89 67429.62 8789.75 1.04 7 160.65 176.66 -4.3 5.35 5.37 4 2000.00 20.0 23101.20 35465.32 8986.77 1.02 8 166.00 323.51 -4.3 9.00 9.03 4 2000.00 20.0 42163.39 59950.62 9208.43 1.02 9 175.00 240.91 -4.3 6.17 6.19 4 2000.00 20.0 31306.14 41318.34 9443.18 1.02 10 181.17 433.28 -1.0 10.29 10.29 4 2000.00 20.0 56202.16 68923.37 9562.91 1.00 11 191.46 470.42 -1.0 10.29 10.29 4 2000.00 20.0 60874.09 69039.16 9803.83 1.00 12 201.75 504.14 2.3 10.28 10.29 4 2000.00 20.0 65068.52 68963.36 9899.32 0.99 13 212.03 535.10 2.3 10.28 10.29 4 2000.00 20.0 68869.81 68696.24 10053.69 0.99 14 222.31 560.66 5.6 10.24 10.29 4 2000.00 20.0 71940.06 68238.05 10060.64 0.99 15 232.55 585.26 5.6 10.24 10.29 4 2000.00 20.0 74848.98 67588.64 10129.08 0.99 16 242.79 605.01 9.0 10.21 10.34 4 2000.00 20.0 77033.20 67053.63 10042.39 0.98 17 253.00 617.55 9.0 10.12 10.24 4 2000.00 20.0 78242.12 65416.99 10017.54 0.98 18 263.12 628.46 12.3 10.05 10.29 4 2000.00 20.0 79294.27 64502.84 9651.52 0.98 19 273.17 640.14 12.3 10.05 10.29 4 2000.00 20.0 80402.51 63097.00 9751.04 0.96 20 283.23 733.63 15.6 11.36 11.80 3 100.00 18.0 91651.52 70377.52 9790.95 0.99 21 294.59 550.47 15.6 8.46 8.78 2 0.00 35.0 68555.57 50856.20 9437.04 0.94 22 303.05 635.34 18.9 9.73 10.29 2 0.00 35.0 79125.31 57767.87 9189.02 0.93 23 312.78 634.43 18.9 9.73 10.29 2 0.00 35.0 79011.83 55624.73 8975.60 0.93 24 322.51 616.88 22.2 9.52 10.29 2 0.00 35.0 76823.88 53302.29 8648.01 0.93 25 332.04 610.00 22.2 9.52 10.29 2 0.00 35.0 75964.83 50800.61 8365.97 0.93 26 341.56 679.65 25.6 10.80 11.98 2 0.00 35.0 84632.27 55744.25 7944.11 0.93 27 352.37 386.61 25.6 6.27 6.95 6 50.00 16.0 48185.77 30575.37 7950.49 1.03 28 358.64 91.07 25.6 1.49 1.65 2 0.00 35.0 11361.13 7077.09 7490.98 0.93 29 360.13 414.14 28.9 6.87 7.85 2 0.00 35.0 51664.84 32528.00 7230.22 0.94 30 367.00 649.39 28.9 11.14 12.73 2 0.00 35.0 80903.09 48779.36 6811.03 0.94 31 378.14 217.84 32.2 3.86 4.56 2 0.00 35.0 27087.60 16249.26 6370.15 0.95 32 382.00 330.14 32.2 6.00 7.09 2 0.00 35.0 40997.00 23906.55 6146.42 0.95 33 388.00 319.45 32.2 6.00 7.09 2 0.00 35.0 39601.47 22233.51 5913.17 0.95 34 394.00 81.04 32.2 1.55 1.84 2 0.00 35.0 10036.86 5488.74 5767.36 0.95 35 395.55 98.96 35.5 1.92 2.36 2 0.00 35.0 12254.62 6875.91 5621.30 0.96 36 397.48 127.94 35.5 2.52 3.10 6 50.00 16.0 15851.91 8730.50 5904.40 1.10 37 400.00 83.10 35.5 1.68 2.06 6 50.00 16.0 10307.39 5601.67 5780.48 1.10 38 401.68 480.34 35.5 10.63 13.06 2 0.00 35.0 59564.34 31945.19 4913.87 0.96 39 412.30 246.69 38.9 6.35 8.15 2 0.00 35.0 30550.04 16715.36 4148.02 0.98 40 418.65 214.20 38.9 6.35 8.15 2 0.00 35.0 26489.85 14112.43 3585.49 0.98 41 425.00 89.91 38.9 3.00 3.85 5 0.00 45.0 9890.04 5762.46 2736.35 0.88 42 428.00 196.77 42.0 7.79 10.49 2 0.00 35.0 24246.18 12608.45 2613.52 0.99 43 435.79 141.81 42.2 7.79 10.51 2 0.00 35.0 17375.60 8006.41 1845.53 1.00 44 443.58 46.42 45.5 3.62 5.16 2 0.00 35.0 5639.35 2201.40 1236.50 1.02 45 447.19 41.76 45.5 4.91 7.01 6 50.00 16.0 5060.29 1093.52 882.61 1.23 46 452.10 15.72 45.5 3.93 5.61 6 50.00 16.0 1925.85 0.00 396.60 1.23 47 456.03 1.97 45.5 1.97 2.80 2 0.00 35.0 245.64 0.00 89.32 1.02 X -S Area: 16071.96 Path Length: 476.46 X -S Weight: 2027685.75 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 10 RD EQ.gmf Processed: 31 Jul 2019 10:36:00 DATA: Analysis 1 - Case 10 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 (Mohr -Coulomb Isotropic) - Overburden Cohesion Phi UnitWeight Ru 150.00 22.0 131.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru 0.00 35.0 125.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Weathered Bedrock Cohesion Phi UnitWeight Ru 100.00 18.0 141.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Stable Bedrock Cohesion Phi UnitWeight Ru 2000.00 20.0 141.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru 0.00 45.0 110.00 Auto Material: 6 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru 50.00 16.0 120.00 Auto Material: 7 (Mohr -Coulomb Isotropic) - Silt Cohesion Phi UnitWeight Ru 100.00 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 • Material Profiles (19 profiles) Profile: 1 (2 points) Material beneath: 2 - Sand and Gravel 0.00 200.00 434.00 200.00 Profile: 2 (2 points) Material beneath: 6 - Clay 0.00 190.00 434.00 190.00 Profile: 3 (2 points) Material beneath: 2 - Sand and Gravel 0.00 189.00 434.00 189.00 Profile: 4 (2 points) Material beneath: 6 - Clay 0.00 172.00 434.00 172.00 Profile: 5 (2 points) Material beneath: 2 - Sand and Gravel 0.00 167.00 434.00 167.00 Profile: 6 (2 points) Material beneath: 6 - Clay 0.00 138.00 434.00 138.00 Profile: 7 (2 points) Material beneath: 2 - Sand and Gravel 0.00 136.00 434.00 136.00 Profile: 8 (2 points) Material beneath: 3 - Weathered Bedrock 0.00 100.00 434.00 100.00 Profile: 9 (2 points) Material beneath: 4 - Stable Bedrock 0.00 97.00 434.00 97.00 Profile: 10 (2 points) Material beneath: 5 - Slurry Wall 434.00 200.00 437.00 200.00 Profile: 11 (2 points) Material beneath: 2 - Sand and Gravel 437.00 200.00 490.00 200.00 Profile: 12 (2 points) material beneath: 6 - Clay 437.00 190.00 490.00 190.00 Profile: 13 (2 points) Material beneath: 2 - Sand and Gravel 437.00 189.00 490.00 189.00 Profile: 14 (2 points) Material beneath: 6 - Clay 437.00 172.00 490.00 172.00 Profile: 15 (2 points) Material beneath: 2 - Sand and Gravel 437.00 167.00 490.00 167.00 Profile: 16 (2 points) Material beneath: 6 - Clay 437.00 138.00 490.0D 138.00 Profile: 17 (2 points) Material beneath: 2 - Sand and Gravel 437.00 136.00 490.00 136.00 Profile: 18 (2 points) Material beneath: 3 - Weathered Bedrock 437.00 100.00 490.0D 100.00 Profile: 19 (2 points) Material beneath: 4 - Stable Bedrock 434.00 97.00 490.00 97.00 Slope Surface (7 points) 0.00 100.00 109.00 100.00 409.00 200.00 469.00 200.00 474.00 197.00 479.00 200.00 490.00 200.00 Phreatic Surface (4 points) 0.00 100.00 109.00 100.00 388.00 193.00 490.00 193.00 Failure Surface Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 110.00 Centre: XC: 201.54 Earthquake Force YL: 100.33 XR: 469.50 YR: 199.70 YC: 469.14 Radius: R: 380.00 Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: XL XR R Range of variation: 2.00 4.00 10.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 10 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.326 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.30 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 110.00 100.33 469.50 199.70 201.54 469.14 380.00 1.304 <-- Critical Surface 2 110.00 100.33 469.50 199.70 201.61 466.92 379.80 1.305 3 110.00 100.33 469.50 199.70 201.67 466.69 379.59 1.305 4 109.89 100.30 469.50 199.70 201.49 469.09 380.00 1.306 5 110.00 100.33 469.50 199.70 201.73 466.46 379.39 1.306 6 109.89 100.30 469.50 199.70 201.56 468.87 379.80 1.306 7 110.00 100.33 469.50 199.70 201.79 466.24 379.18 1.306 8 109.89 100.30 469.50 199.70 201.62 466.64 379.59 1.306 9 110.00 100.33 469.50 199.70 201.86 468.01 378.98 1.306 10 109.79 100.26 469.50 199.70 201.44 469.04 380.00 1.306 11 110.00 100.33 469.71 199.57 201.81 469.07 360.00 1.306 12 110.00 100.33 469.50 199.70 201.92 467.79 378.78 1.307 13 109.79 100.26 469.50 -.. 199.70 201.51 468.02 379.80 1.307 14 110.00 100.33 469.71 199.57 201.88 468.85 379.80 1.307 15 110.00 100.33 469.50 199.70 201.98 467.56 378.57 1.307 16 109.89 100.30 469.50 199.70 201.68 468.42 379.39 1.307 17 110.00 100.33 469.71 199.57 201.94 468.62 379.59 1.307 18 110.00 100.33 469.50 199.70 202.04 467.33 378.37 1.307 19 109.89 100.30 469.50 199.70 201.74 468.19 379.18 1.307 20 110.00 100.33 469.71 199.57 202.00 468.40 379.39 1.307 21 109.68 100.23 469.50 199.70 201.40 469.00 380.00 1.307 22 110.00 100.33 469.50 199.70 202.11 467.11 378.16 1.307 23 109.89 100.30 469.50 199.70 201.81 467.96 378.98 1.307 24 109.79 100.26 469.50 199.70 201.57 468.59 379.59 1.308 25 109.89 100.30 469.71 199.57 201.76 469.03 380.00 1.308 26 110.00 100.33 469.71 199.57 202.06 468.17 379.16 1.308 27 109.89 100.30 469.50 199.70 201.87 467.74 378.78 1.308 28 109.79 100.26 469.50 199.70 201.63 468.37 379.39 1.308 29 109.89 100.30 469.71 199.57 201.83 468.80 379.80 1.308 30 110.00 100.33 469.50 199.70 202.17 466.88 377.96 1.308 31 110.00 100.33 469.71 199.57 202.12 467.95 378.98 1.308 32 109.89 100.30 469.50 199.70 201.93 467.51 378.57 1.308 33 109.79 100.26 469.50 199.70 201.69 468.14 379.18 1.308 34 109.68 100.23 469.50 199.70 201.46 468.77 379.80 1.308 35 110.00 100.33 469.92 199.45 202.08 469.01 380.00 1.308 36 109.89 100.30 469.71 199.57 201.89 466.57 379.59 1.308 37 109.58 100.19 469.50 199.70 201.35 468.95 380.00 1.308 38 109.89 100.30 469.50 199.70 201.99 467.29 378.37 1.308 39 110.00 100.33 469.71 199.57 202.19 467.72 378.78 1.308 40 109.79 100.26 469.50 199.70 201.76 467.91 378.98 1.308 41 109.68 100.23 469.50 199.70 201.52 468.54 379.59 1.308 42 109.79 100.26 469.71 199.57 201.71 468.98 380.00 1.308 43 110.00 100.33 469.92 199.45 202.15 468.78 379.80 1.308 44 110.00 100.33 469.50 199.70 202.23 466.66 377.76 .1.308 45 109.89 100.30 469.71 199.57 201.95 468.35 379.39 1.308 46 109.79 100.26 469.50 199.70 201.82 467.69 378.78 1.309 47 109.68 100.23 469.50 199.70 201.58 468.32 379.39 1.309 48 109.79 100.26 469.71 199.57 201.76 468.75 379.80 1.309 49 109.89 100.30 469.71 199.57 202.01 468.12 379.18 1.309 50 110.00 100.33 469.92 199.45 202.21 468.56 379.59 1.309 51 109.89 100.30 469.50 199.70 202.06 467.06 378.16 1.309 52 110.00 100.33 469.71 199.57 202.25 467.49 378.57 1.309 53 109.68 100.23 469.50 199.70 201.65 468.09 379.18 1.309 54 110.00 100.33 469.50 199.70 202.29 466.43 377.55 1.309 55 109.58 100.19 469.50 199.70 201.41 468.72 379.80 1.309 56 109.79 100.26 469.71 199.57 201.84 468.53 379.59 1.309 57 109.79 100.26 469.50 199.70 201.88 467.46 378.57 1.309 58 109.89 100.30 469.92 199.45 202.03 468.96 380.00 1.309 59 109.58 100.19 469.50 199.70 201.47 468.49 379.59 1.309 60 109.68 100.23 469.71 199.57 201.6/ 468.93 380.00 1.309 61 109.89 100.30 469.71 199.57 202.08 467.90 378.98 1.309 62 110.00 100.33 469.92 199.45 202.27 468.33 379.39 1.309 63 109.68 100.23 469.50 199.70 201.71 467.87 378.98 1.309 64 109.89 100.30 469.50 199.70 202.12 466.83 377.96 1.309 65 110.00 100.33 469.71 199.57 202.31 467.27 378.37 1.309 66 109.79 100.26 469.71 199.57 201.90 468.30 379.39 1.310 67 110.00 100.33 469.50 199.70 202.36 466.20 377.35 1.310 68 109.58 100.19 469.50 199.70 201.53 468.27 379.39 1.310 69 109.47 100.16 469.50 199.70 201.30 466.90 380.00 1.310 70 109.79 100.26 469.50 199.70 201.94 467.24 378.37 1.310 71 109.68 100.23 469.71 199.57 201.73 468.70 379.80 1.310 72 109.89 100.30 469.92 199.45 202.10 468.73 379.80 1.310 73 109.89 100.30 469.71 199.57 202.14 467.67 378.78 1.310 74 109.66 100.23 469.50 199.70 201.77 467.64 378.78 1.310 75 109.47 100.16 469.50 199.70 201.36 468.67 379.80 1.310 76 109.89 100.30 469.50 199.70 202.18 466.61 377.76 1.310 77 110.00 100.33 469.71 199.57 202.37 467.04 378.16 1.310 78 109.79 100.26 469.71 199.57 201.96 468.07 379.18 1.310 79 109.58 100.19 469.50 199.70 201.60 468.04 379.18 1.310 80 110.00 100.33 469.50 199.70 202.42 465.98 377.14 1.310 81 109.79 100.26 469.50 199.70 202.01 467.01 378.16 1.310 82 109.68 100.23 469.71 199.57 201.79 468.48 379.59 1.310 63 109.89 100.30 469.92 199.45 202.16 468.51 379.59 1.310 84 109.47 100.16 469.50 199.70 201.42 468.45 379.59 1.310 85 109.58 100.19 469.71 199.57 201.62 468.88 380.00 1.310 86 109.68 100.23 469.50 199.70 201.83 467.41 378.57 1.310 87 109.89 100.30 469.71 199.57 202.20 467.44 378.57 1.310 88 109.79 100.26 469.92 199.45 201.98 468.91 380.00 1.311 89 109.89 100.30 469.50 199.70 202.24 466.38 377.55 1.311 90 110.00 100.33 469.71 199.57 202.44 466.81 377.96 1.311 91 109.79 100.26 469.71 199.57 202.03 467.85 378.98 1.311 92 109.37 100.12 469.50 199.70 201.25 468.85 380.00 1.311 93 109.58 100.19 469.50 199.70 201.66 467.82 378.98 1.311 94 110.00 100.33 469.50 199.70 202.48 465.75 376.94 1.311 95 109.79 100.26 469.50 199.70 202.07 466.78 377.96 1.311 96 109.68 100.23 469.71 199.57 201.85 468.25 379.39 1.311 97 109.47 100.16 469.50 199.70 201.48 468.22 379.39 1.311 98 109.58 100.19 469.71 199.57 201.68 468.65 379.80 1.311 99 109.68 100.23 469.50 199.70 201.90 467.19 378.37 1.311 Critical Failure Surface (circle 1) Intersects: XI: 110.00 YL: Centre: XC: 201.54 YC: Generated failure surface: (20 points) 110.00 100.33 130.04 211.68 89.28 232.17 312.63 105.74 332.08 405.53 148.53 422.54 100.33 469.14 95.93 90.38 112.27 160.01 XR: 469.50 Radius: 150.28 252.57 351.15 438.90 92.62 92.58 119.63 172.39 YR: Slice Geometry and Properties - Critical Failure Surface (circle 1, 50 slices) 19970 380.00 170.68 272.82 369.79 454.57 90.40 95.89 128.42 185.63 191.17 89.28 292.86 100.28 387.93 137.99 469.50 199.70 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 110.00 0.64 -12.4 1.52 1.55 2 0.00 35.0 79.55 40.66 55.95 1.16 2 111.52 18.61 -12.4 6.83 6.99 3 100.00 18.0 2408.63 1189.21 381.24 1.08 3 118.34 44.39 -12.4 6.83 6.99 3 100.00 18.0 5794.06 2835.80 892.25 1.08 4 125.17 47.40 -12.4 4.87 4.98 4 2000.00 20.0 6200.34 3028.32 1676.01 1.09 5 130.04 137.66 -9.3 10.12 10.26 4 2000.00 20.0 18000.94 8704.38 2085.77 1.06 6 140.16 188.60 -9.3 10.12 10.26 4 2000.00 20.0 24636.89 11925.35 2757.64 1.06 7 150.28 238.64 -6.2 10.20 10.26 4 2000.00 20.0 31125.26 14978.81 3273.83 1.04 8 160.48 284.61 -6.2 10.20 10.26 4 2000.00 20.0 37052.96 17864.51 3864.48 1.04 9 170.68 329.29 -3.1 10.24 10.26 4 2000.00 20.0 42780.76 20578.11 4294.70 1.02 10 180.92 369.97 -3.1 10.24 10.26 4 2000.00 20.0 47956.54 23120.05 4803.97 1.02 11 191.17 408.44 -0.0 10.26 10.26 4 2000.00 20.0 52814.05 25486.63 5149.23 1.00 12 201.42 443.55 -0.0 10.26 10.26 4 2000.00 20.0 57203.22 27677.44 5577.12 1.00 13 211.68 242.97 3.1 5.32 5.33 4 2000.00 20.0 31271.70 15183.37 5755.04 0.99 14 217.00 283.65 3.1 6.00 6.01 4 2000.00 20.0 36413.23 17725.55 5941.62 0.99 15 223.00 452.92 3.1 9.17 9.18 4 2000.00 20.0 57971.65 28303.29 6193.39 0.99 16 232.17 528.56 6.2 10.20 10.26 4 2000.00 20.0 67448.05 33174.25 6353.62 0.98 17 242.37 551.99 6.2 10.20 10.26 4 2000.00 20.0 70196.52 34644.61 6619.42 0.98 18 252.57 568.32 9.3 10.12 10.26 4 2000.00 20.0 72006.30 35931.68 6715.91 0.97 19 262.69 585.77 9.3 10.12 10.26 4 2000.00 20.0 73920.09 37034.95 6901.38 0.97 20 272.82 300.13 12.4 5.09 5.21 4 2000.00 20.0 37755.24 19172.48 6891.07 0.96 21 277.90 408.69 12.4 6.85 7.01 3 100.00 18.0 51264.56 26107.25 7276.80 0.97 22 284.75 414.05 12.4 6.85 7.01 3 100.00 18.0 51769.97 26449.50 7349.29 0.97 23 291.59 563.20 15.0 9.20 9.53 2 0.00 35.0 70307.39 36368.56 7158.46 0.90 24 300.80 568.01 15.5 9.20 9.55 2 0.00 35.0 70909.83 36773.14 7207.45 0.90 25 310.00 163.25 15.5 2.63 2.73 2 0.00 35.0 20373.71 10568.52 7244.92 0.90 26 312.63 384.25 18.5 6.18 6.52 2 0.00 35.0 47910.34 25290.36 7155.98 0.89 27 318.82 384.17 18.5 6.18 6.52 2 0.00 35.0 47836.17 25284.87 7145.72 0.89 28 325.00 439.75 18.5 7.08 7.47 2 0.00 35.0 54720.82 28943.22 7139.72 0.89 29 332.08 589.19 21.6 9.54 10.26 2 0.00 35.0 73315.12 39552.82 7015.94 0.89 30 341.62 583.43 21.6 9.54 10.26 2 0.00 35.0 72595.12 39166.16 6947.05 0.89 31 351.15 561.75 24.7 9.32 10.26 2 0.00 35.0 69892.52 38593.18 6760.18 0.88 32 360.47 550.70 24.7 9.32 10.26 2 0.00 35.0 68511.21 37833.98 6626.64 0.88 33 369.79 359.85 27.8 6.21 7.03 2 0.00 35.0 44763.28 25390.31 6410.94 0.88 34 376.00 171.04 27.8 3.00 3.39 2 0.00 35.0 21267.18 12068.20 6309.38 0.88 35 379.00 289.79 27.8 5.15 5.83 2 0.00 35.0 36017.86 20447.39 6219.26 0.88 36 384.15 208.95 27.8 3.77 4.27 6 50.00 16.0 25986.56 14743.27 6509.14 1.01 37 387.93 473.59 30.9 8.80 10.26 2 0.00 35.0 58934.94 33523.68 5862.67 0.88 38 396.73 453.02 30.9 8.80 10.26 2 0.00 35.0 56363.34 30149.56 5561.54 0.88 39 405.53 172.50 34.0 3.47 4.19 2 0.00 35.0 21458.71 11308.62 5258.34 0.89 40 409.00 317.02 34.0 6.77 8.17 2 0.00 35.0 39424.15 20298.60 4937.09 0.89 41 415.77 286.10 34.0 6.77 8.17 2 0.00 35.0 35559.90 17971.39 4442.20 0.89 42 422.54 337.16 37.1 9.24 11.58 2 0.00 35.0 41868.28 21320.83 3754.53 0.89 43 431.77 71.56 37.1 2.23 2.79 6 50.00 16.0 8887.29 4380.19 3623.49 1.08 44 434.00 90.55 37.1 3.00 3.76 5 0.00 45.0 9960.04 5441.52 2632.33 0.79 45 437.00 53.77 37.1 1.90 2.38 6 50.00 16.0 6708.34 3167.47 3195.45 1.08 46 438.90 190.39 40.2 7.83 10.26 2 0.00 35.0 23760.11 11074.23 2423.11 0.90 47 446.73 138.52 40.2 7.83 10.26 2 0.00 35.0 17275.51 6835.97 1724.80 0.90 48 454.57 45.36 43.3 3.58 4.91 2 0.00 35.0 5651.52 1742.59 1168.81 0.91 49 458.14 38.21 43.3 4.25 5.83 2 0.00 35.0 4776.14 727.96 789.05 0.91 50 462.39 25.96 43.3 7.11 9.77 2 0.00 35.0 3244.47 0.00 303.00 0.91 X -S Area: 15359.87 Path Length: 389.80 X -S Weight: 1934350.25 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J G T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 10 Full EQ.gmf Processed: 31 Jul 2019 11:13:46 DATA: Analysis 1 - Case 10 - Full Reservoir EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Overburden Sand and Gravel Weathered Bedrock Stable Bedrock Slurry Wall Clay Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (19 profiles) Profile: 1 (2 points) 0.00 200.00 Profile: 2 (2 points) 0.00 190.00 Profile: 3 (2 points) 0.00 189.00 Profile: 4 (2 points) 0.00 172.00 Profile: 5 (2 points) 0.00 167.00 Profile: 6 (2 points) 0.00 138.00 Profile: 7 (2 points) 0.00 136.00 Profile: 8 (2 points) 0.00 100.00 Profile: 9 (2 points) 0.00 97.00 Profile: 10 (2 points) 434.00 200.00 Profile: 11 (2 points) 437.00 200.00 Profile: 12 (2 points) 437.00 190.00 Profile: 13 (2 points) 437.00 189.00 Profile: 14 (2 points) 437.00 172.00 Profile: 15 (2 points) 437.00 167.00 Profile: 16 (2 points) 437.00 138.00 Profile: 17 (2 points) 437.00 136.00 Profile: 18 (2 points) 437.00 100.00 Profile: 19 (2 points) 434.00 97.00 Slope Surface (7 points) 0.00 100.00 479.00 200.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 434.00 Material beneath: 437.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Material beneath: 490.00 Phreatic Surface (4 points) 0.00 193.00 Failure Surface 109.00 490.00 109.00 2 - Sand and Gravel 200.00 6 - Clay 190.00 2 - Sand and Gravel 189.00 6 - Clay 172.00 2 - Sand and Gravel 167.00 6 - Clay 138.00 2 - Sand and Gravel 136.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 200.00 2 - Sand and Gravel 200.00 6 - Clay 190.00 2 - Sand and Gravel 189.00 6 - Clay 172.00 2 - Sand and Gravel 167.00 6 - Clay 138.00 2 - Sand and Gravel 136.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 200.00 193.00 409.00 200.00 388.00 193.00 Initial circular surface for critical search defined by: XL,XR,R 469.00 200.00 490.00 193.00 474.00 197.00 Intersects: XL: 114.00 Centre: XC: 197.69 Earthquake Force YL: 101.67 XR: 469.50 YR: 199.70 YC: 491.77 Radius: R: 398.98 Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: XL XR R Range of variation: 10.00 4.00 50.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 10 - Full Reservoir EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.211 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.05 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 114.00 101.67 469.50 199.70 197.69 491.77 398.98 2.047 <-- Critical Surface 2 114.00 101.67 469.92 199.45 197.95 492.76 400.00 2.048 3 114.00 101.67 469.71 199.57 197.67 492.82 400.00 2.048 4 114.00 101.67 469.50 199.70 197.39 492.88 400.00 2.049 5 114.00 101.67 469.71 199.57 197.97 491.71 398.98 2.056 6 114.00 101.67 469.50 199.70 198.00 490.66 397.96 2.056 7 114.00 101.67 470.13 199.32 198.23 492.70 400.00 2.059 8 114.00 101.67 469.92 199.45 198.25 491.65 398.98 2.059 9 114.00 101.67 469.71 199.57 198.28 490.60 397.96 2.059 10 114.00 101.67 469.50 199.70 198.30 489.55 396.94 2.060 11 113.47 101.49 469.50 199.70 197.13 492.64 400.00 2.062 12 114.00 101.67 470.34 199.19 198.51 492.64 400.00 2.062 13 114.00 101.67 470;76 198.94 199.38 491.40 398.98 2.062 14 114.00 101.67 470.13 199.32 198.53 491.59 398.98 2.063 15 114.00 101.67 469.92 199.45 196.56 490.54 397.96 2.064 16 113.47 101.49 469.71 199.57 197.42 492.58 400.00 2.064 17 114.00 101.67 469.71 199.57 198.58 489.49 396.94 2.065 18 113.47 101.49 469.50 199.70 197.44 491.54 398.98 2.065 19 114.00 101.67 470.55 199.07 198.79 492.58 400.00 2.065 20 114.00 101.67 469.50 199.70 198.61 486.44 395.92 2.066 21 114.00 101.67 470.34 199.19 198.82 491.53 398.98 2.066 22 114.00 101.67 470.13 199.32 199.14 489.37 396.94 2.067 23 114.00 101.67 470.13 199.32 198.84 490.48 397.96 2.067 24 114.00 101.67 469.92 199.45 199.17 488.32 395.92 2.068 25 114.00 101.67 470.97 198.82 199.35 492.45 400.00 2.069 26 114.00 101.67 470.55 199.07 199.40 490.35 397.96 2.069 27 114.00 101.67 469.92 199.45 198.86 489.43 396.94 2.069 28 114.00 101.67 470.76 198.94 199.07 492.51 400.00 2.069 29 114.00 101.67 469.71 199.57 199.20 487.26 394.90 2.069 30 114.00 101.67 470.34 199.19 199.42 489.30 396.94 2.069 31 113.47 101.49 469.92 199.45 197.70 492.52 400.00 2.069 32 113.47 101.49 469.71 199.57 197.72 491.47 398.98 2.070 33 114.00 101.67 470.55 199.07 199.10 491.47 398.98 2.070 34 114.00 101.67 469.50 199.70 199.22 486.21 393.88 2.070 35 114.00 101.67 469.71 199.57 198.89 486.38 395.92 2.070 36 114.00 101.67 470.13 199.32 199.45 488.25 395.92 2.070 37 113.47 101.49 469.50 199.70 197.75 490.43 397.96 2.071 38 113.47 101.49 470.76 198.94 198.82 492.28 400.00 2.071 39 114.00 101.67 470.34 199.19 199.12 490.42 397.96 2.071 40 114.00 101.67 469.92 199.45 199.48 487.20 394.90 2.071 41 114.00 101.67 469.50 199.70 198.92 467.33 394.90 2.071 42 114.00 101.67 471.18 196.69 199.64 492.39 400.00 2.071 43 114.00 101.67 469.71 199.57 199.50 486.15 393.88 2.072 44 114.00 101.67 470.97 198.82 199.66 491.34 398.98 2.072 45 114.00 101.67 470.34 199.19 199.73 488.19 395.92 2.072 46 114.00 101.67 470.76 198.94 199.68 490.29 397.96 2.073 47 114.00 101.67 469.50 199.70 199.53 485.10 392.86 2.073 48 114.00 101.67 470.13 199.32 199.75 487.14 394.90 2.073 49 113.47 101.49 470.13 199.32 198.28 491.35 398.98 2.073 50 113.47 101.49 470.13 199.32 197.98 492.46 400.00 2.073 51 114.00 101.67 469.92 199.45 199.78 486.09 393.88 2.074 52 114.00 101.67 471.39 198.56 199.92 492.33 400.00 2.074 53 113.47 101.49 469.92 199.45 198.31 490.30 397.96 2.074 54 113.47 101.49 470.55 199.07 198.54 492.34 400.00 2.075 55 114.00 101.67 471.18 198.69 199.94 491.28 398.98 2.075 56 113.47 101.49 469.92 199.45 198.00 491.41 398.98 2.075 57 114.00 101.67 469.71 199.57 199.81 485.04 392.86 2.075 56 113.47 101.49 469.71 199.57 198.33 489.25 396.94 2.075 59 113.47 101.49 470.34 199.19 198.56 491.29 398.98 2.075 60 113.47 101.49 469.71 199.57 198.03 490.36 397.96 2.075 61 114.00 101.67 470.97 198.82 199.96 490.23 397.96 2.075 62 113.47 101.49 469.50 199.70 198.36 486.20 395.92 2.076 63 114.00 101.67 469.50 199.70 199.84 463.99 391.84 2.076 64 114.00 101.67 470.13 199.32 200.06 486.03 393.88 2.076 65 112.95 101.32 469.50 199.70 196.88 492.41 400.00 2.076 66 113.47 101.49 469.50 199.70 198.05 489.31 396.94 2.076 67 113.47 101.49 470.13 199.32 198.59 490.24 397.96 2.076 68 114.00 101.67 470.76 198.94 199.98 489.18 396.94 2.076 69 114.00 101.67 470.55 199.07 199.70 489.24 396.94 2.076 70 114.00 101.67 469.92 199.45 200.09 484.98 392.86 2.077 71 113.47 101.49 470.34 199.19 198.26 492.40 400.00 2.077 72 113.47 101.49 469.92 199.45 198.61 489.19 396.94 2.077 73 114.00 101.67 471.39 198.56 200.22 491.22 398.98 2.077 74 113.47 101.49 470.55 199.07 198.84 491.23 398.98 2.077 75 114.00 101.67 469.71 199.57 200.12 483.92 391.84 2.078 76 113.47 101.49 469.71 199.57 198.64 468.14 395.92 2.078 77 114.00 101.67 470.55 199.07 200.31 487.02 394.90 2.078 78 113.47 101.49 470.34 199.19 198.67 490.18 397.96 2.078 79 114.00 101.67 471.16 198.69 200.24 490.17 397.96 2.078 80 114.00 101.67 469.50 199.70 200.15 482.87 390.82 2.079 81 113.47 101.49 469.50 199.70 198.67 487.09 394.90 2.079 82 113.47 101.49 470.13 199.32 198.89 489.13 396.94 2.079 83 114.00 101.67 470.97 198.82 200.26 489.12 396.94 2.079 84 114.00 101.67 470.76 198.94 200.29 488.07 395.92 2.080 85 113.47 101.49 469.92 199.45 198.92 488.08 395.92 2.080 86 114.00 101.67 470.55 199.07 200.01 486.13 395.92 2.080 67 114.00 101.67 470.34 199.19 200.03 487.08 394.90 2.080 88 112.95 101.32 469.92 199.45 197.44 492.29 400.00 2.080 69 114.00 101.67 469.71 199.57 200.42 482.81 390.82 2.080 90 112.95 101.32 469.71 199.57 197.16 492.35 400.00 2.080 91 112.95 101.32 469.71 199.57 197.47 491.24 398.98 2.081 92 113.47 101.49 469.71 199.57 198.94 487.03 394.90 2.081 93 113.47 101.49 470.97 198.82 199.10 492.22 400.00 2.081 94 113.47 101.49 470.34 199.19 199.17 489.07 396.94 2.081 95 112.95 101.32 469.50 199.70 197.49 490.19 397.96 2.081 96 112.95 101.32 469.50 199.70 197.19 491.30 398.98 2.081 97 114.00 101.67 469.50 199.70 200.45 481.75 389.80 2.081 96 113.47 101.49 470.76 198.94 199.12 491.17 398.98 2.061 99 114.00 101.67 471.18 198.69 200.54 489.06 396.94 2.081 Critical Failure Surface (circle 1) Intersects: XL: 114 00 YL: 101.67 XR: 469.50 YR: 199.70 Centre: XC: 197.69 YC: 491.77 Radius: R: 398.98 Generated failure surface: (20 points) 114.00 101.67 133.83 97.93 153.82 95.21 173.92 93.50 214.25 93.13 234.38 94.48 254.41 96.84 274.30 100.21 313.45 109.95 332.60 116.29 351.41 123.59 369.82 131.83 405.28 151.05 422.24 161.98 438.62 173.75 454.39 186.33 Slice Geometry and Properties - Critical Failure Surface (circle 1, 47 slices) 194.08 92.81 294.00 104.59 387.79 140.99 469.50 199.70 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 114.00 20.45 -10.7 8.85 9.01 2 0.00 35.0 2555.82 51819.38 5905.70 1.09 2 122.85 82.06 -10.7 10.97 11.16 3 100.00 18.0 10438.30 65505.16 6376.75 1.05 3 133.83 81.97 -7.8 6.86 6.92 3 100.00 18.0 10524.20 41265.52 6774.12 1.03 4 140.68 99.16 -7.8 6.57 6.63 4 2000.00 20.0 12756.52 39876.62 7180.25 1.03 5 147.25 119.40 -7.8 6.57 6.63 4 2000.00 20.0 15360.83 40246.63 7448.58 1.03 6 153.82 219.41 -4.9 10.05 10.09 4 2000.00 20.0 28265.90 61820.60 7685.58 1.02 7 163.87 261.68 -4.9 10.05 10.09 4 2000.00 20.0 33687.14 62359.04 8020.17 1.02 8 173.92 302.36 -2.0 10.08 10.09 4 2000.00 20.0 38871.18 62737.26 8249.94 1.01 9 184.00 339.72 -2.0 10.08 10.09 4 2000.00 20.0 43597.77 62955.13 8510.58 1.01 10 194.08 374.70 0.9 10.09 10.09 4 2000.00 20.0 47985.47 63013.30 8663.63 1.00 11 204.16 406.96 0.9 10.09 10.09 4 2000.00 20.0 51991.03 62910.18 8850.43 1.00 12 214.25 116.38 3.8 2.75 2.76 4 2000.00 20.0 14846.02 17161.77 8886.25 0.99 13 217.00 260.89 3.8 6.00 6.01 4 2000.00 20.0 33203.19 37329.06 8930.54 0.99 14 223.00 521.10 3.8 11.38 11.40 4 2000.00 20.0 66097.33 70377.94 9023.35 0.99 15 234.38 484.76 6.7 10.02 10.09 4 2000.00 20.0 61284.95 61638.78 9032.50 0.99 16 244.40 506.38 6.7 10.02 10.09 4 2000.00 20.0 63797.99 60895.42 9072.60 0.99 17 254.41 487.82 9.6 9.31 9.44 3 100.00 18.0 61237.54 56201.26 9163.79 0.99 18 263.72 502.02 9.6 9.31 9.44 3 100.00 18.0 62777.52 55271.00 9133.67 0.99 19 273.04 579.90 12.2 10.48 10.72 2 0.00 35.0 72382.27 61488.10 8951.05 0.95 20 283.52 592.12 12.5 10.48 10.74 2 0.00 35.0 73910.55 60010.75 8867.19 0.95 21 294.00 458.52 15.4 8.00 8.30 2 0.00 35.0 57235.27 45216.89 8717.26 0.95 22 302.00 462.21 15.4 8.00 8.30 2 0.00 35.0 57695.95 44074.22 8605.93 0.95 23 310.00 200.21 15.4 3.45 3.57 2 0.00 35.0 24961.42 18630.51 8523.67 0.95 24 313.45 672.57 18.3 11.55 12.17 2 0.00 35.0 83778.41 61618.36 8313.62 0.95 25 325.00 442.47 18.3 7.60 8.00 2 0.00 35.0 55042.85 38938.77 8108.45 0.95 26 332.60 545.26 21.2 9.40 10.09 2 0.00 35.0 67828.72 47134.34 7846.44 0.95 27 342.00 540.42 21.2 9.40 10.09 2 0.00 35.0 67223.27 44837.21 7590.24 0.95 28 351.41 521.92 24.1 9.21 10.09 2 0.00 35.0 64917.43 42392.04 7249.89 0.95 29 360.61 512.24 24.1 9.21 10.09 2 0.00 35.0 63707.58 39798.64 6935.72 0.95 30 369.82 337.24 27.0 6.18 6.94 2 0.00 35.0 41939.15 25796.97 6597.69 0.96 31 376.00 107.75 27.0 2.00 2.25 2 0.00 35.0 13395.50 8060.47 6427.71 0.96 32 378.00 209.24 27.0 3.92 4.40 6 50.00 16.0 26017.54 15390.77 6565.64 1.05 33 381.93 307.83 27.0 5.87 6.59 2 0.00 35.0 38302.19 21989.48 6109.58 0.96 34 367.79 444.93 29.9 8.74 10.09 2 0.00 35.0 55353.62 31153.60 5797.58 0.96 35 396.54 426.44 29.9 3.74 10.09 2 0.00 35.0 53042.80 27988.27 5525.17 0.96 36 405.28 175.26 32.8 3.72 4.42 2 0.00 35.0 21796.37 11249.73 5262.34 0.97 37 409.00 294.05 32.8 6.62 7.88 2 0.00 35.0 36557.18 18389.19 4947.07 0.97 38 415.62 265.81 32.8 6.62 7.88 2 0.00 35.0 33027.46 16292.91 4462.03 0.97 39 422.24 248.24 35.7 6.99 8.61 2 0.00 35.0 30819.84 15314.13 3890.18 0.99 40 429.23 149.26 35.7 4.77 5.87 6 50.00 16.0 18555.45 8902.88 3656.33 1.12 41 434.00 85.48 35.7 3.00 3.69 5 0.00 45.0 9403.07 4954.69 2668.55 0.91 42 437.00 43.52 35.7 1.62 2.00 2 0.00 35.0 5432.24 2471.82 2932.68 0.99 43 438.62 182.15 38.6 7.88 10.09 2 0.00 35.0 22729.23 10136.77 2480.34 1.01 44 446.51 132.54 38.6 7.88 10.09 2 0.00 35.0 16528.10 6176.00 1778.24 1.01 45 454.39 37.17 41.5 3.01 4.02 2 0.00 35.0 4631.07 1338.95 1257.03 1.03 46 457.40 40.70 41.5 4.52 6.04 2 0.00 35.0 5087.49 753.47 892.71 1.03 47 461.93 27.65 41.5 7.57 10.11 2 0.00 35.0 3455.97 0.00 350.29 1.03 X -S Area: 14230.32 Path Length: 383.30 X -S weight: 1784076.88 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 11 RD EQ.gmf Processed: 31 Jul 2019 12:59:38 DATA: Analysis 1 - Case 11 - Rapid Draw Down EQ Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) - Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Overburden Sand and Gravel Weathered Bedrock Stable Bedrock Slurry Wall Clay Silt Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (15 profiles) Profile: 1 (2 points) 0.00 190.00 Profile: 2 (2 points) 0.00 183.00 Profile: 3 (2 points) 0.00 181.00 Profile: 4 (2 points) 0.00 180.00 Profile: 5 (2 points) 0.00 170.00 Profile: 6 (2 points) 0.00 100.00 Profile: 7 (2 points) 0.00 97.00 Profile: 8 (2 points) 392.00 190.00 Profile: 9 (2 points) 395.00 190.00 Profile: 10 (2 points) 395.00 183.00 Profile: 11 (2 points) 395.00 181.00 Profile: 12 (2 points) 395.00 180.00 Profile: 13 (2 points) 395.00 170.00 Profile: 14 (2 points) 395.00 100.00 Profile: 15 (2 points) 392.00 97.00 Slope Surface (4 points) 0.00 100.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Phreatic Surface (4 points) 0.00 100.00 Failure Surface 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 190.00 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 100.00 100.00 100.00 370.00 190.00 349.00 183.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 102.00 YL: 100.67 XR: 430.00 YR: Centre: XC: 178.22 YC: 467.63 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints 440.00 190.00 440.00 183.00 190.00 374.80 Parameter descriptor: XL XR R Range of variation: 4.00 10.00 10.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 11 - Rapid Draw Down EQ Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 1.371 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 1.30 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 102.00 100.67 430.00 190.00 178.22 467.63 374.80 1.303 <-- Critical Surface 2 102.00 100.67 430.00 190.00 178.28 467.41 374.59 1.304 3 102.00 100.67 430.00 190.00 178.34 467.19 374.39 1.304 4 102.00 100.67 430.00 190.00 178.40 466.97 374.18 1.305 5 102.00 100.67 430.00 190.00 178.46 466.75 373.98 1.305 6 102.00 100.67 430.00 190.00 178.16 467.85 375.00 1.305 7 102.00 100.67 430.00 190.00 178.52 466.53 373.78 1.306 8 102.00 100.67 430.53 190.00 178.59 467.76 375.00 1.306 9 102.00 100.67 430.00 190.00 178.56 466.30 373.57 1.306 10 102.00 100.67 430.53 190.00 178.65 467.54 374.80 1.306 11 101.79 100.60 430.00 190.00 178.06 467.76 375.00 1.307 12 102.00 100.67 430.00 190.00 178.64 466.08 373.37 1.307 13 102.00 100.67 430.53 190.00 178.71 467.32 374.59 1.307 14 101.79 100.60 430.00 190.00 178.12 467.54 374.80 1.307 15 102.00 100.67 430.00 190.00 178.70 465.86 373.16 1.307 16 102.00 100.67 430.53 190.00 178.77 467.10 374.39 1.307 17 101.79 100.60 430.00 190.00 178.18 467.32 374.59 1.308 18 102.00 100.67 430.00 190.00 178.76 465.64 372.96 1.308 19 102.00 100.67 430.53 190.00 178.83 466.88 374.18 1.308 20 101.79 100.60 430.00 190.00 178.24 467.10 374.39 1.308 21 102.00 100.67 430.00 190.00 178.62 465.42 372.76 1.308 22 102.00 100.67 430.53 ]90.00 178.89 466.66 373.98 1308. 23 101.79 100.60 430.00 190.00 178.30 466.87 374.18 1.309 24 102.00 100.67 430.00 190.00 178.88 465.20 372.55 1.309 25 102.00 100.67 430.53 190.00 178.95 466.44 373.78 1.309 26 101.79 100.60 430.00 190.00 178.36 466.65 373.98 1.309 27 102.00 100.67 430.00 190.00 178.94 464.98 372.35 1.309 28 102.00 100.67 431.05 190.00 179.02 467.67 375.00 1.309 29 102.00 100.67 430.53 190.00 179.01 466.21 373.57 1.309 30 101.79 100.60 430.00 190.00 178.42 466.43 373.78 1.310 31 102.00 100.67 430.00 190.00 179.00 464.76 372.14 1.310 32 102.00 100.67 431.05 190.00 179.08 467.45 374.80 1.310 33 101.79 100.60 430.53 190.00 178.49 467.67 375.00 1.310 34 102.00 100.67 430.53 190.00 179.07 465.99 373.37 1.310 35 101.79 100.60 430.00 190.00 178.48 466.21 373.57 1.310 36 102.00 100.67 430.00 190.00 179.06 464.53 371.94 1.310 37 102.00 100.67 431.05 190.00 179.14 467.23 374.59 1.310 38 101.79 100.60 430.53 190.00 178.55 467.45 374.80 1.310 39 102.00 100.67 430.53 190.00 179.13 465.77 373.16 1.310 40 101.79 100.60 430.00 190.00 178.54 465.99 373.37 1.310 41 101.58 100.53 430.00 190.00 177.96 467.67 375.00 1.311 42 102.00 100.67 430.00 190.00 179.12 464.31 371.73 1.311 43 102.00 100.67 431.05 190.00 179.20 467.01 374.39 1.311 44 101.79 100.60 430.53 190.00 178.61 467.23 374.59 1.311 45 102.00 100.67 430.53 190.00 179.19 465.55 372.96 1.311 46 101.79 100.60 430.00 190.00 178.60 465.77 373.16 1.311 47 101.58 100.53 430.00 190.00 178.02 467.45 374.80 1.311 48 102.00 100.67 430.00 190.00 179.18 464.09 371.53 1.311 49 102.00 100.67 431.05 190.00 179.26 466.79 374.18 1.311 50 101.79 100.60 430.53 190.00 178.67 467.01 374.39 1.311 51 102.00 100.67 430.53 190.00 179.25 465.33 372.76 1.311 52 101.79 100.60 430.00 190.00 178.66 465.55 372.96 1.311 53 101.58 100.53 430.00 190.00 178.08 467.22 374.59 1.311 54 102.00 100.67 430.00 190.00 179.24 463.87 371.33 1.312 55 102.00 100.67 431.05 190.00 179.32 466.57 373.98 1.312 56 101.79 100.60 430.53 190.00 178.73 466.79 374.18 1.312 57 102.00 100.67 430.53 190.00 179.31 465.11 372.55 1.312 58 101.79 100.60 430.00 190.00 178.72 465.33 372.76 1.312 59 101.58 100.53 430.00 190.00 178.14 467.00 374.39 1.312 60 102.00 100.67 430.00 190.00 179.30 463.65 371.12 1.312 61 101.79 100.60 430.53 190.00 178.79 466.56 373.98 1.312 62 102.00 100.67 431.05 190.00 179.38 466.35 373.78 1.312 63 102.00 100.67 430.53 190.00 179.37 464.89 372.35 1.312 64 101.79 100.60 430.00 190.00 178.78 465.11 372.55 1.312 65 102.00 100.67 430.00 190.00 179.36 463.43 370.92 1.313 66 102.00 100.67 431.58 190.00 179.44 467.58 375.00 1.313 67 101.79 100.60 430.53 190.00 178.85 466.34 373.78 1.313 68 102.00 100.67 431.05 190.00 179.44 466.12 373.57 1.313 69 102.00 100.67 430.53 190.00 179.43 464.67 372.14 1.313 70 101.79 100.60 430.00 190.00 178.84 464.88 372.35 1.313 71 102.00 100.67 430.00 190.00 179.43 463.21 370.71 1.313 72 101.79 100.60 431.05 190.00 178.91 467.58 375.00 1.313 73 102.00 100.67 431.58 190.00 179.50 467.36 374.80 1.313 74 101.79 100.60 430.53 190.00 178.91 466.12 373.57 1.313 75 102.00 100.67 431.05 190.00 179.50 465.90 373.37 1.313 76 102.00 100.67 430.53 190.00 179.49 464.44 371.94 1.313 77 101.79 100.60 430.00 190.00 178.90 464.66 372.14 1.313 78 102.00 100.67 430.00 190.00 179.49 462.98 370.51 1.313 79 101.79 100.60 431.05 190.00 178.97 467.36 374.80 1.314 80 102.00 100.67 431.58 190.00 179.56 467.14 374.59 1.314 81 101.79 100.60 430.53 190.00 178.97 465.90 373.37 1.314 82 102.00 100.67 431.05 190.00 179.56 465.68 373.16 1.314 63 102.00 100.67 430.53 190.00 179.55 464.22 371.73 1.314 64 101.79 100.60 430.00 190.00 178.96 464.44 371.94 1.314 85 102.00 100.67 430.00 190.00 179.55 462.76 370.31 1.314 86 101.79 100.60 431.05 190.00 179.03 467.14 374.59 1.314 87 102.00 100.67 431.58 190.00 179.62 466.92 374.39 1.314 88 101.79 100.60 430.53 190.00 179.03 465.68 373.16 1.314 89 102.00 100.67 431.05 190.00 179.62 465.46 372.96 1.314 90 102.00 100.67 430.53 190.00 179.61 464.00 371.53 1.314 91 101.79 100.60 430.00 190.00 179.02 464.22 371.73 1.314 92 102.00 100.67 430.00 190.00 179.61 462.54 370.10 1.314 93 101.79 100.60 431.05 190.00 179.09 466.92 374.39 1.315 94 102.00 100.67 431.58 190.00 179.68 466.70 374.18 1.315 95 101.79 100.60 430.53 190.00 179.09 465.46 372.96 1.315 96 102.00 100.67 431.05 190.00 179.68 465.24 372.76 1.315 97 102.00 100.67 430.53 190.00 179.67 463.78 371.33 1.315 98 101.79 100.60 430.00 190.00 179.08 464.00 371.53 1.315 99 102.00 100.67 430.00 190.00 179.67 462.32 369.90 1.315 Critical Failure Surface (circle 1) Intersects: XL: 102.00 YL: 100.67 XR: 430.00 YR: 190.00 Centre: XC: 178.22 YC: 467.63 Radius: R: 374.80 Generated failure surface: (20 points) 102.00 100.67 120.27 97.34 136.68 94.93 157.19 93.43 175.75 92.84 194.31 93.18 212.84 94.44 231.28 96.61 249.59 99.69 267.72 103.68 265.64 108.56 303.29 114.32 320.64 120.95 337.63 128.43 354.24 136.74 370.41 145.86 386.11 155.77 401.30 166.45 415.94 177.87 430.00 190.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 46 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 102.00 3.46 -10.3 .66 3.72 2 0.00 35.0 432.20 219.30 124.39 1.13 2 105.66 27.53 -10.3 .30 7.42 3 100.00 18.0 3518.29 1745.78 508.14 1.06 3 112.97 55.01 -10.3 .30 7.42 3 100.00 18.0 7108.57 3488.71 1012.01 1.06 4 120.27 26.12 -7.5 .61 2.63 3 100.00 .18.0 3363.00 1643.86 1330.86 1.04 5 122.88 96.46 -7.5 .90 7.97 4 2000.00 20.0 12752.31 6196.56 1854.70 1.05 6 130.78 127.47 -7.5 .90 7.97 4 2000.00 20.0 16509.17 8022.06 2339.52 1.05 7 138.68 184.00 -4.6 .25 9.28 4 2000.00 20.0 23807.01 11519.42 2730.92 1.03 8 147.93 219.49 -4.6 .25 9.28 4 2000.00 20.0 28354.20 13741.17 3228.15 1.03 9 157.19 253.60 -1.8 .28 9.28 4 2000.00 20.0 32698.05 15832.57 3588.32 1.01 10 166.47 285.01 -1.8 .28 9.28 4 2000.00 20.0 36667.10 17793.30 4017.95 1.01 11 175.75 314.39 1.0 .28 9.28 4 2000.00 20.0 40348.61 19620.88 4307.68 1.00 12 185.03 341.54 1.0 .28 9.28 4 2000.00 20.0 43718.06 21315.69 4669.76 1.00 13 194.31 365.76 3.9 .26 9.28 4 2000.00 20.0 46683.93 22875.73 4889.84 0.98 14 203.57 388.54 3.9 .26 9.28 4 2000.00 20.0 49438.38 24300.49 5184.53 0.98 15 212.84 407.25 6.7 .22 9.28 4 2000.00 20.0 51647.17 25588.29 5335.78 0.97 16 222.06 425.58 6.7 .22 9.28 4 2000.00 20.0 53777.40 26739.59 5563.40 0.97 17 231.28 109.91 9.6 .32 2.35 4 2000.00 20.0 13856.85 6954.63 5586.58 0.97 18 233.60 385.28 9.6 .99 8.11 3 100.00 18.0 48457.04 24379.58 5925.81 0.97 19 241.59 395.82 9.6 .99 8.11 3 100.00 18.0 49602.58 25046.66 6066.65 0.97 20 249.59 70.36 12.4 .40 1.43 3 100.00 18.0 8798.37 4495.23 6104.13 0.97 21 250.99 425.11 12.4 .37 8.57 2 0.00 35.0 53138.30 27159.68 6014.60 0.92 22 259.36 433.05 12.4 .37 8.57 2 0.00 35.0 54131.80 27667.68 6127.06 0.92 23 267.72 470.31 15.2 .96 9.28 2 0.00 35.0 58768.70 30416.29 6143.22 0.90 24 276.68 475.20 15.2 .96 9.28 2 0.00 35.0 59400.35 30732.75 6207.14 0.90 25 285.64 470.89 18.1 .83 9.28 2 0.00 35.0 58860.83 30908.53 6170.78 0.89 26 294.46 471.43 18.1 .83 9.28 2 0.00 35.0 58928.76 30944.20 6177.90 0.89 27 303.29 357.49 20.9 .71 7.18 2 0.00 35.0 44686.07 23860.46 6091.98 0.89 28 310.00 562.18 20.9 1 .64 11.39 2 0.00 35.0 70178.35 37554.05 6036.24 0.89 29 320.64 443.11 23.8 .50 9.28 2 0.00 35.0 55178.46 30209.12 5673.85 0.88 30 329.13 435.41 23.8 .50 9.28 2 0.00 35.0 54094.81 29683.74 5759.89 0.88 31 337.63 119.83 26.6 .37 2.65 2 0.00 35.0 14865.57 8362.18 5614.30 0.68 32 340.00 150.41 26.6 .00 3.35 2 0.00 35.0 18651.68 10496.01 5562.58 0.88 33 343.00 296.31 26.6 .00 6.71 2 0.00 35.0 36708.96 20676.93 5474.57 0.88 34 349.00 253.63 26.6 .24 5.85 2 0.00 35.0 31390.11 17380.06 5354.12 0.88 35 354.24 371.24 29.4 .88 9.05 2 0.00 35.0 45932.46 24870.36 5111.02 0.88 36 362.12 356.90 29.4 .88 9.05 2 0.00 35.0 44139.82 22359.11 4871.95 0.88 37 370.00 337.09 32.1 .05 9.51 2 0.00 35.0 41653.47 20684.41 4415.64 0.88 38 378.05 296.14 32.3 .05 9.53 2 0.00 35.0 36533.76 17693.58 3857.55 0.88 39 386.11 189.45 35.1 .89 7.20 2 0.00 35.0 23328.17 11304.96 3304.18 0.89 40 392.00 87.09 35.1 .00 3.67 5 0.00 45.0 9579.68 5040.97 2555.95 0.79 41 395.00 162.25 35.1 .30 7.70 2 0.00 35.0 19903.31 9012.98 2614.68 0.89 42 401.30 99.04 37.9 .55 5.77 2 0.00 35.0 12107.67 5317.68 2147.98 0.89 43 405.85 162.15 37.9 10.09 12.80 6 50.00 16.0 19862.16 7239.97 1736.86 1.08 44 415.94 27.30 40.8 2.47 3.26 6 50.00 16.0 3375.27 826.62 1162.17 1.11 45 418.41 29.56 40.8 3.48 4.59 6 50.00 16.0 3668.61 429.87 873.80 1.11 46 421.89 28.40 40.8 8.11 10.72 2 0.00 35.0 3549.80 0.00 298.93 0.90 X -S Area: 11995.54 Path Length: 352.80 X -S Weight: 1504195.25 GALENA 7.2 Analysis Results Version: 7.20.3.01 Licensee: J & T Consulting Project: DPG Site File: P:\18114 DPG Mining Site\Slope Stability\Galena\Models\DPG Case 11 Full EQ.ginf Processed: 31 Jul 2019 13:33:03 DATA: Analysis 1 - Case 11 - Full Reservoir Material Properties (7 materials) Material: 1 Cohesion 150.00 Material: 2 Cohesion 0.00 Material: 3 Cohesion 100.00 Material: 4 Cohesion 2000.00 Material: 5 Cohesion 0.00 Material: 6 Cohesion 50.00 Material: 7 Cohesion 100.00 (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 22.0 131.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 35.0 125.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 18.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 20.0 141.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 45.0 110.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 16.0 120.00 Auto (Mohr -Coulomb Isotropic) Phi UnitWeight Ru 2.0 100.00 Auto Water Properties Unit weight of water: 62.400 Material Profiles (15 profiles) Profile: 1 0.00 Profile: 2 0.00 Profile: 3 0.00 Profile: 4 0.00 Profile: 5 0.00 Profile: 6 0.00 Profile: 7 0.00 Profile: 8 392.00 Profile: 9 395.00 Profile: 10 395.00 Profile: 11 395.00 Profile: 12 395.00 Profile: 13 395.00 Profile: 14 395.00 Profile: 15 392.00 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 (2 points) 190.00 points) 183.00 points) 181.00 points). 180.00 points) 170.00 points) 100.00 points) 97.00 points) 190.00 points) 190.00 points) 183.00 points) 181.00 points) 180.00 points) 170.00 points) 100.00 points) 97.00 Slope Surface (4 points) - Overburden - Sand and Gravel - Weathered Bedrock - Stable Bedrock - Slurry Wall - Clay - Silt Unit weight of water/medium above ground: 62.400 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 392.00 Material beneath: 395.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 Material beneath: 440.00 0.00 100.00 100.00 Phreatic Surface (4 points) 0.00 183.00 100.00 Failure Surface 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 5 - Slurry Wall 190.00 2 - Sand and Gravel 190.00 6 - Clay 183.00 2 - Sand and Gravel 181.00 6 - Clay 180.00 2 - Sand and Gravel 170.00 3 - Weathered Bedrock 100.00 4 - Stable Bedrock 97.00 100.00 370.00 190.00 183.00 349.00 183.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: Centre: XC: 178.15 YC: 474.56 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints 440.00 190.00 440.00 183.00 190.00 380.00 Parameter descriptor: XL XR R Range of variation: 10.00 10.00 20.00 Trial positions within range: 20 20 50 RESULTS: Analysis 1 - Case 11 - Full Reservoir Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.257 Analysis Summary There were: 20001 successful analyses from a total of 20001 trial failure surfaces Critical (minimum) Factor of Safety: 2.03 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 105.00 101.67 430.00 190.00 178.15 474.56 380.00 2.025 <-- Critical Surface 2 105.00 101.67 430.00 190.00 178.27 474.12 379.59 2.027 3 105.00 101.67 430.00 190.00 178.39 473.68 379.18 2.030 4 105.00 101.67 430.53 190.00 178.58 474.47 380.00 2.032 5 105.00 101.67 430.00 190.00 178.51 473.24 378.78 2.032 6 105.00 101.67 430.53 190.00 178.70 474.03 379.59 2.034 7 105.00 101.67 430.00 190.00 178.63 472.80 378.37 2.035 8 105.00 101.67 430.53 190.00 178.82 473.59 379.18 2.037 9 105.00 101.67 430.00 190.00 178.75 472.36 377.96 2.037 10 105.00 101.67 430.53 190.00 178.94 473.15 378.78 2.039 11 105.00 101.67 431.05 190.00 179.01 474.39 380.00 2.039 12 105.00 101.67 430.00 190.00 178.87 471.92 377.55 2.039 13 105.00 101.67 430.53 190.00 179.06 472.71 378.37 2.041 14 105.00 101.67 431.05 190.00 179.13 473.95 379.59 2.041 15 105.00 101.67 430.00 190.00 178.99 471.48 377.14 2.042 16 105.00 101.67 430.53 190.00 179.18 472.27 377.96 2.044 17 105.00 101.67 431.05 190.00 179.25 473.51 379.18 2.044 18 105.00 101.67 430.00 190.00 179.11 471.04 376.73 2.044 19 104.47 101.49 430.00 190.00 177.90 474.33 380.00 2.045 20 105.00 101.67 431.58 190.00 179.44 474.30 380.00 2.046 21 105.00 101.67 430.53 190.00 179.30 471.83 377.55 2.046 22 105.00 101.67 431.05 190.00 179.37 _ 473.07 378.78 2.046 23 105.00 101.67 430.00 190.00 179.23 470.60 376.33 2.046 24 104.47 101.49 430.00 190.00 178.02 473.89 379.59 2.048 25 105.00 101.67 431.58 190.00 179.56 473.86 379.59 2.048 26 105.00 101.67 430.53 190.00 179.42 471.39 377.14 2.049 27 105.00 101.67 431.05 190.00 179.49 472.63 378.37 2.049 28 105.00 101.67 430.00 190.00 179.35 470.16 375.92 2.049 29 104.47 101.49 430.00 190.00 178.14 473.45 379.18 2.050 30 105.00 101.67 431.58 190.00 179.68 473.42 379.18 2.051 31 105.00 101.67 430.53 190.00 179.54 470.95 376.73 2.051 32 105.00 101.67 431.05 190.00 179.61 472.19 377.96 2.051 33 105.00 101.67 430.00 190.00 179.47 469.72 375.51 2.051 34 104.47 101.49 430.53 190.00 178.33 474.25 380.00 2.052 35 104.47 101.49 430.00 190.00 178.26 473.01 378.78 2.052 36 105.00 101.67 432.11 190.00 179.87 474.22 380.00 2.053 37 105.00 101.67 431.58 190.00 179.80 472.98 378.78 2.053 38 105.00 101.67 430.53 190.00 179.66 470.51 376.33 2.053 39 105.00 101.67 431.05 190.00 179.73 471.75 377.55 2.053 40 105.00 101.67 430.00 190.00 179.59 469.28 375.10 2.054 41 104.47 101.49 430.53 190.00 178.45 473.81 379.59 2.054 42 104.47 101.49 430.00 190.00 178.37 472.57 378.37 2.055 43 105.00 101.67 432.11 190.00 179.99 473.78 379.59 2.055 44 105.00 101.67 431.58 190.00 179.92 472.54 378.37 2.055 45 105.00 101.67 431.05 190.00 179.85 471.31 377.14 2.056 46 105.00 101.67 430.53 190.00 179.78 470.07 375.92 2.056 47 105.00 101.67 430.00 190.00 179.71 468.84 374.69 2.056 48 104.47 101.49 430.53 190.00 178.57 473.37 379.18 2.057 49 104.47 101.49 430.00 190.00 178.49 472.13 377.96 2.057 50 105.00 101.67 432.11 190.00 180.11 473.34 379.18 2.058 51 105.00 101.67 431.58 190.00 180.04 472.10 377.96 2.058 52 105.00 101.67 431.05 190.00 179.97 470.87 376.73 2.058 53 105.00 101.67 430.53 190.00 179.90 469.63 375.51 2.058 54 105.00 101.67 430.00 190.00 179.83 468.40 374.29 2.058 55 104.47 101.49 430.53 190.00 178.69 472.93 378.78 2.059 56 104.47 101.49 431.05 190.00 178.76 474.16 380.00 2.059 57 104.47 101.49 430.00 190.00 178.61 471.69 377.55 2.059 58 105.00 101.67 432.63 190.00 180.30 474.13 380.00 2.060 59 105.00 101.67 432.11 190.00 180.23 472.90 378.78 2.060 60 105.00 101.67 431.58 190.00 180.16 471.66 377.55 2.060 61 105.00 101.67 431.05 190.00 180.09 470.43 376.33 2.060 62 105.00 101.67 430.53 190.00 180.02 469.19 375.10 2.060 63 105.00 101.67 430.00 190.00 179.95 467.95 373.88 2.061 64 104.47 101.49 430.53 190.00 178.80 472.49 378.37 2.061 65 104.47 101.49 431.05 190.00 178.88 473.72 379.59 2.061 66 104.47 101.49 430.00 190.00 178.73 471.25 377.14 2.062 67 105.00 101.67 432.63 190.00 180.42 473.69 379.59 2.062 68 105.00 101.67 432.11 190.00 180.35 472.46 378.37 2.062 69 105.00 101.67 431.58 190.00 180.28 471.22 377.14 2.063 70 105.00 101.67 431.05 190.00 180.21 469.98 375.92 2.063 71 105.00 101.67 430.53 190:00 180.14 468.75 374.69 2.063 72 105.00 101.67 430.00 190.00 180.07 467.51 373.47 2.063 73 104.47 101.49 430.53 190.00 178.92 472.05 377.96 2.064 74 104.47 101.49 431.05 190.00 179.00 473.28 379.18 2.064 75 104.47 101.49 430.00 190.00 178.85 470.81 376.73 2.064 76 105.00 101.67 432.63 190.00 180.54 473.25 379.18 2.064 77 105.00 101.67 432.11 190.00 180.47 472.01 377.96 2.065 78 105.00 101.67 431.58 190.00 180.40 470.78 376.73 2.065 79 105.00 101.67 431.05 190.00 180.33 469.54 375.51 2.065 60 105.00 101.67 430.53 190.00 180.26 468.31 374.29 2.065 81 103.95 101.32 430.00 190.00 177.64 474.10 380.00 2.065 82 105.00 101.67 430.00 190.00 180.19 467.07 373.06 2.065 83 104.47 101.49 431.58 190.00 179.19 474.07 380.00 2.066 64 104.47 101.49 431.05 190.00 179.11 472.84 378.78 2.066 85 104.47 101.49 430.53 190.00 179.04 471.60 377.55 2.066 86 104.47 101.49 430.00 190.00 178.97 470.37 376.33 2.066 67 105.00 101.67 433.16 190.00 180.73 474.04 380.00 2.067 88 105.00 101.67 432.63 190.00 180.66 472.81 378.78 2.067 69 105.00 101.67 432.11 190.00 180.59 471.57 377.55 2.067 90 105.00 101.67 431.58 190.00 180.52 470.34 376.33 2.067 91 105.00 101.67 431.05 190.00 180.45 469.10 375.10 2.067 92 105.00 101.67 430.53 190.00 180.38 467.87 373.88 2.068 93 103.95 101.32 430.00 190.00 177.76 473.66 379.59 2.068 94 105.00 101.67 430.00 190.00 180.31 466.63 372.65 2.068 95 104.47 101.49 431.58 190.00 179.31 473.63 379.59 2.068 96 104.47 101.49 431.05 190.00 179.23 472.40 378.37 2.068 97 104.47 101.49 430.53 190.00 179.16 471.16 377.14 2.068 98 104.47 101.49 430.00 190.00 179.09 469.93 375.92 2.069 99 105.00 101.67 433.16 190.00 180.85 473.60 379.59 2.069 Critical Failure Surface (circle 1) Intersects: XL: 105.00 YL: 101.67 XR: 430.00 YR: 190.00 Centre: XC: 178.15 YC: 474.56 Radius: R: 380.00 Generated failure surface: (20 points) 105.00 101.67 123.10 98.57 141.33 96.35 159.64 95.01 178.00 94.56 196.35 94.99 214.67 96.32 232.90 98.52 251.00 101.61 268.93 105.56 286.65 110.38 304.12 116.04 321.29 122.55 338.13 129.87 354.59 138.00 370.64 146.92 386.25 156.60 401.36 167.02 415.96 178.17 430.00 190.00 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 105.00 23.91 -9.7 .74 9.68 2 0.00 35.0 2988.56 50640.70 5290.61 1.08 2 114.74 58.73 -9.7 .36 8.49 3 100.00 18.0 7437.03 44328.32 5696.32 1.04 3 123.10 68.20 -6.9 .44 6.48 3 100.00 18.0 8712.25 34316.46 6005.47 1.03 4 129.54 87.05 -6.9 .44 6.48 3 100.00 18.0 11149.50 34633.62 6254.22 1.03 5 135.97 86.82 -6.9 .36 5.40 4 2000.00 20.0 11137.06 29064.72 6601.59 1.03 6 141.33 176.62 -4.2 .16 9.18 4 2000.00 20.0 22661.97 49835.57 6789.24 1.02 7 150.48 210.70 -4.2 .16 9.18 4 2000.00 20.0 27019.08 50218.71 7077.85 1.02 8 159.64 243.34 -1.4 .18 9.18 4 2000.00 20.0 31167.32 50474.43 7271.07 1.00 9 168.82 273.49 -1.4 .18 9.18 4 2000.00 20.0 34969.32 50603.59 7495.33 1.00 10 176.00 301.62 1.4 .18 9.18 4 2000.00 20.0 38485.51 50606.26 7621.87 1.00 11 187.18 327.70 1.4 .18 9.18 4 2000.00 20.0 41713.63 50481.34 7781.92 1.00 12 196.35 350.90 4.1 .16 9.18 4 2000.00 20.0 44547.61 50229.52 7842.37 0.99 13 205.51 372.60 4.1 .16 9.18 4 2000.00 20.0 47187.98 49850.73 7938.44 0.99 14 214.67 239.86 6.9 .64 5.68 4 2000.00 20.0 30284.67 30625.55 7927.26 0.99 15 220.31 275.46 6.9 .29 6.34 3 100.00 16.0 34696.54 33866.86 8065.86 0.99 16 226.61 283.87 6.9 .29 6.34 3 100.00 18.0 35671.04 33565.68 8088.46 0.99 17 232.90 403.09 9.7 .67 8.80 3 100.00 18.0 50488.18 45964.37 8061.05 0.99 18 241.57 452.25 9.7 .43 9.57 2 0.00 35.0 56531.73 49064.51 7964.28 0.96 19 251.00 441.41 12.4 .97 9.18 2 0.00 35.0 55175.70 46064.21 7880.88 0.95 20 259.97 450.47 12.4 .97 9.18 2 0.00 35.0 56309.11 44931.46 7816.32 0.95 21 268.93 452.05 15.2 .86 9.18 2 0.00 35.0 56505.96 43675.71 7676.69 0.95 22 277.79 456.88 15.2 .86 9.18 2 0.00 35.0 57109.98 42296.28 7557.62 0.95 23 286.65 453.06 18.0 .73 9.18 2 0.00 35.0 56632.88 40794.43 7363.35 0.95 24 295.38 453.74 18.0 .73 9.18 2 0.0D 35.0 56717.63 39171.13 7190.93 0.95 25 304.12 305.08 20.7 .88 6.29 2 0.00 35.0 38135.41 25844.34 6979.23 0.95 26 310.00 291.27 20.7 .64 6.04 2 0.0D 35.0 36382.66 23977.44 6824.37 0.95 27 315.64 289.83 20.7 .64 6.04 2 0.00 35.0 36148.91 23172.35 6668.47 0.95 28 321.29 427.58 23.5 .42 9.18 2 0.00 35.0 53230.32 33584.87 6399.12 0.95 29 329.71 420.37 23.5 .42 9.18 2 0.00 35.0 52210.67 31486.30 6111.76 0.95 30 338.13 92.41 26.3 .87 2.09 2 0.00 35.0 11460.96 6863.00 5883.82 0.95 31 340.00 146.89 26.3 .00 3.35 2 0.00 35.0 18210.74 10744.29 5786.52 0.95 32 343.00 289.44 26.3 .00 6.69 2 0.00 35.0 35849.83 20560.68 5604.96 0.95 33 349.00 264.54 26.3 .59 6.24 2 0.00 35.0 32732.37 18047.85 5422.04 0.95 34 354.59 354.43 29.1 .70 8.81 2 0.00 35.0 43841.64 23568.13 5204.68 0.96 35 362.30 341.25 29.0 .70 8.81 2 0.00 35.0 42193.70 21214.85 4982.22 0.96 36 370.00 332.74 31.6 .12 9.54 2 0.00 35.0 41104.79 20212.41 4544.07 0.97 37 378.12 291.79 31.8 .12 9.56 2 0.00 35.0 35986.51 17252.14 3966.19 0.97 36 386.25 180.74 34.6 .75 6.99 2 0.00 35.0 22247.24 10646.96 3415.83 0.98 39 392.00 85.19 34.6 .00 3.64 5 0.00 45.0 9371.38 4865.72 2669.48 0.91 40 395.00 160.18 34.6 .36 7.73 2 0.00 35.0 19640.43 8764.41 2710.33 0.98 41 401.36 83.76 37.4 .90 4.90 2 0.00 35.0 10236.17 4433.39 2266.39 1.00 42 405.26 170.27 37.4 1 .70 13.46 6 50.00 16.0 20860.70 7488.40 1797.08 1.14 43 415.96 23.75 40.1 2.18 2.85 6 50.00 16.0 2937.37 695.49 1213.56 1.17 44 418.14 30.25 40.1 3.56 4.66 6 50.00 16.0 3755.15 435.71 933.90 1.17 45 421.69 29.07 40.1 8.31 10.86 2 0.00 35.0 3633.54 0.00 338.77 1.01 X -S Area: 11554.87 Path Length: 348.88 X -S weight: 1445470.62 APPENDIX D. Lqii! J&T Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis B-1 — 0 — 15 — 30 —45 —60 • — 75 —90 —105 — 120 B-2 FIGURE 1 Logs of Borings B-7 B-8 0- 15 — 30-7 45- 60- 75- 90- 105- 120 — PROJECT NO: 19.3016 PROJECT NAME: DPG Farms DWG DATE: 1/28/2019 ...' ` SARE, INC. ■� vr,,� G.wadu�hW Eeaiwaard CamrYetlwi MWMs&Cawrutluh 6 N -0 - 15 - 30 - 45 - 60 - 75 - 90 -105 - 120 B-9 B-10 B-11 B-12 B-13 B-14 FIGURE 1 Logs of Borings B-15 B-16 0- 15- 30- 45- 60- 75 - 90- 105- 120- PROJECT NO: 19.3016 PROJECT NAME: DPG Farms DWG DATE: 1/30/2019 B-17 —0 — 15 —30 — 45 — 60 — 75 — 90 — 105 — 120 B-18 B-19 B-20 8-21 FIGURE 1 Logs of Borings 8-22 B-23 0- 15- 30- 45- 60- 75- 90- 105- 120 - CD 3 T PROJECT NO: 19.3016 PROJECT NAME: DPG Farms DWG DATE: 1/26/2019 .■- . 1■ WA. I■ ..." ; SiE, INC. GagraehsrEe mrsE Co..W Mies McNdW CeeeeA.m KEY TO SYMBOLS Symbol Description Strata symbols 4.1:1: • 1r • • Notes: SILT, clayey, with fine sand, moist to very moist, brown to dark brown. (ML) Symbol Description Misc. Symbols Water level during drilling SAND, silty, moist to very moist, brown to Soil Samplers dark brown. (SM) CLAY, sandy, with silt, moist to wet, brown. (CL) SAND, poorly graded, with gravel, with silt to silty, wet, brown. Gravel sizes typically 1" minus, locally 2" minus, occasional lenses of 3" minus. (SP-SM) SAND, poorly graded, with gravel, wet, brown. Gravel sizes typically 1" minus, locally. 2" minus, occasional lenses of 3" minus. (SP) GRAVEL, poorly graded, with sand, with silt, wet, brown. Gravel sizes typically 1" minus locally 2" minus, occasional lenses of 3" minus. (GP -GM) GRAVEL, poorly graded, with san brown. Gravelsizes typically 1" 2" minus, occasional lenses (GP) CLAYSTONE BEDRO local) ith fine sand, moist, gray SILTSTONy (fine grained), very mo' - •wn. SANDST '' BEDROCK, fine grained, with silt, wet, gr to brown. Composite Sample of Auger Cuttings 1. Exploratory borings B-1 through B-23 were drilled from January 22 through 25, 2019, using a CME-75 drill rig with a 6 -inch diameter continuous flight solid stem auger. 2. Groundwater was encountered at depths of 3 to 10 feet below ground surface in borings B-1 through B-23 at the time of drilling. For safety purposes, borings were backfilled immediately after drilling. 3. Contacts between soil units are approximate and may be gradational. Gravel sizes as described in this legend are estimates and are based on input from drillers, and cuttings brought to the surface during drilling. At various locations and depths of drilling, cuttings were not brought to the surface and the material type logged and presented in these logs, is based on driller input and our assumptions based on previous experience. 4. These logs are subject to the limitations and conclusions in this report. Project No. 19.3016. APPENDIX E ri JET Consulting, Inc. J-2 Contracting Company - DPG Pit Slope Stability Analysis Peak Acceleration (%g) with 2% Probability of Exceedance in 50 Years USGS Map, Oct. 2002rev 125ew 50°N 120°W 95°W 100°W _ 50°N a 300N �� 30°N 25°N 125W 120°W 100°W 110 J\' 1151A/ 1051N a 300 200 160 120 80 60 50 40 30 20 18 16 14 12 10 8 6 4 2 0 DPG Farms, LLC 3300 South Parker Road, STE 300 Aurora, CO 80014-3521 August 15, 2019 Re: Agreement for Structures within 200 feet of mining activities Dear Mr. White, J-2 Contracting Co. Inc. has a State of Colorado Division of Reclamation, Mining, and Safety (DRMS) Reclamation Permit application under review (M-2019-028) to allow sand and gravel mining on property within 200 feet of structures owned by you. The Colorado Mined Land Reclamation Act provides protection for your property, and specific protection for your structures located within 200 feet of the mining activities. J-2 Contracting Company has a mining lease with DPG Farms, LLC that allows them to mine the affected land within the property per the proposed permit application under review with the DRMS. Per this letter agreement DPG Farms, LLC is allowing J-2 Contracting Company to mine within 200 feet of these structures as well as removing structures where needed to mine the property. Sincerely, ris Leone; 00 p (scoeNT J-2 Contracting Co, The foregoing instrument was acknowledged before me this1 ,as S/zs//9 Date My Commission Expires: David White, DPG Farms, LLC • arn' 9 by, (clDate The foregoing instrument was acknowledged before me this I q day of thii Pr --S , 1O15 S by, DD V1 A tukilt , as 6tike yJ 1Y14vL A.y r� t.. LAURA BRUNO NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20164001377 MY COMMISSION EJPIRESJANUARY 13 2020 Nota . ublic My Commission Expires: 1- j•3 LC ZU J&T Consulting, Inc. LETTER OF TRANSMITTAL Date: July 16, 2019 File No:18114 Job Name: DPG Pit To: Weld County Clerk to the Board 1150 O Street Greeley, CO 80632 Attention: Clerk to the Board WE ARE SENDING YOU: Copies Phone: 970-336-7204 Fax: 970-336-7233 x 4021 Description RECEIVED JUL 1 8 20!9 WELD COUNTY COMMISSIONERS 1 1 DPG Pit — Groundwater Model Report b_y McGrane Water Engineering THESE ARE' TRANSMITTED as checked below: Approved as submitted • For Approval For your use As requested For review and comment For Bids Due Approved as noted Returned for corrections Other: Resubmit Submit Return copies for approval copies for distribution corrected prints REMARKS: Please find attached a copy of a groundwater model report by McGrane Water Engineering for a Colorado Mined Land Reclamation Permit for a Regular (112) Construction Materials Extraction Operation for the DPG Pit to be filed for public review. Please feel free to contact us with any questions you may have. Regards, J.C. York Copy To: File Signed: 305 Denver Avenue - Suite D • Fort Lupton, CO 80234 • Ph: 303-857-6222 • Fax: 303-857-6224 McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons. CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@mcgranewater.com July 3, 2019 Mr. JC York J&T Consulting, Inc. 305 Denver Avenue, Suite D Ft. Lupton, CO 80621 RE: DPG Pit — Hydrologic Impact Assessment Dear Mr. York: McGrane Water Engineering Via email at: jcyorkaj-tconsulting.com The proposed DPG gravel pit mine is located approximately 3 miles east of Hwy 85 in Greeley Co., in Sections 1, 11 and 12, Township 5 North, Range 65 West (6th PM). The site is located just upstream from the confluence of the S. Platte River (SPR) and Cache la Poudre (Poudre) River. Figure Al shows the site, and approximately 206 permitted wells located within a 2 -mile radius as identified in the State's well database (CDWR, 2019). As part of the mine permit application process, the mine consultant, J&T Consulting, Inc. (JT) requested that McGrane Water Engineers, LLC. (MWE) determine the potential impacts of a slurry wall around the proposed DPG pit. Impacts typically include a rise in the water table on the up - gradient side of the slurry wall and a decline in the water table on the down gradient side. Water level_ increases to within 10 feet of the surface on the up -gradient side of the pit could cause: flooding of existing structures such as basements; water logging (over saturation) of crops; and encourage phreatophyte growth. A decline in water levels on the down gradient side could reduce the aquifer saturated thickness and well yields if the decline is significant compared to the saturated thickness of the aquifer at the well. Groundwater Investigation To evaluate the groundwater impacts, we: 1 Conducted a literature search of existing published groundwater literature in the vicinity of Greeley, Co.; 2. Compiled well data from the State's Well database including: well name, permit number, location, well depth, depth to water, and pumping rate (Table Al); 3. Created a groundwater model to evaluate potential changes in groundwater levels resulting from a slurry wall around the mine; 4. Evaluated measured monitoring well water levels around the pit; and 5. Prepared this letter report which includes numerous figures that characterize the aquifer and support our results. Mr. J.C. York July 3, 2019 Page 2 A detailed discussion of the Hydrogeologic analysis, model parameter selection and assumptions, and discussion of model sensitivity and uncertainty are included in Appendix A - Groundwater Evaluation and Modeling (attached). Results We used the US Geologic Survey MODFLOW model (McDonald and Harbough, 1987) to model the site. Using reasonable boundary conditions and aquifer properties, the model predicts that water levels will rise up to 0.75 feet on the up -gradient (west and southwest) sides of the pit (Figure A9). The downstream impact is constrained between the pit and the rivers at the confluence where no wells or structures apparently exist. To account for uncertainty, we assume for this impact analysis that twice the impacts upstream and downstream could occur (Figure A10). We identified two wells within the area of potential impact (Figure A10). Well 118187-A is a domestic well permitted to Weld County that is located within the pit boundaries. We assume that it is either mislocated, abandoned or will be abandoned as part of the pit development plan? Another well belonging to James Mathews (permit no 83280) is located approximately 650 feet west of the site. The Mathews' well is the closest up -gradient well to the pit. After doubling the model results (Figure A10), we estimate that the water level could increase between 0.5 and 1.0 feet at the well as a result of the mine slurry wall. Table 1 includes: location, depth, perforated interval, static water level, saturated aquifer thickness and reported well yield data for the two "potentially" impacted wells. Table 1— Wells that could be Impacted by Slurry Wall Permit Number DEM Elev (ft) Contact Name Town- ship Rng Sec Qtr -Qtr Use(s) Well Depth (ft) Perf. Top Depth (ft) Bot. Perf. Depth (ft) Static Water Level (ft) Sat. Thick. (ft) Yield (gpm) 83280- 4611.3 MATHEWS, JAMES L. 5.0 N 65.0 W 11 SENE Domestic 82 62 82 11 69 20 118187 --A 4607.6 WELD COUNTY 5.ON 65.0W 12 NWNE Domestic 40 20 40 10 -- 15 The reported static water level of the Mathews well is 11 feet below ground level. If the home has a basement, it may already be vulnerable to flooding and have a sump pump. Another 1 foot rise caused by the pit could cause basement flooding. However, it the impact can be solved by simply installing a more reliable sump pump system, we recommend that the mine operators do so. Because this potential impact is so small and involves only one well, we do not believe the overall impact of the mine on nearby wells is going to be significant. Monitoring and Mitigation We recommend that the Mine Owner should: • Contact the owners of potentially affected wells shown on Table 1 and conduct a more detailed evaluation of the potential impacts at the home to determine mitigation options; and McGrane Water Engineering, LLC C 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@sncgranewater.com Web: ttp://wmv.incgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 3 Install more monitoring wells west of the pit, to monitor around up -gradient homes in case our predictive analysis is incorrect or in case seasonal fluctuations in the water table are more than what has been recently measured. The Mine Owner could also install a drain that intercepts mounding groundwater on the west side of the pit and transport it to the down gradient side where it could be recharge the aquifer. The depth, location, and size of a drain will depend on the timing and location of rising water and hydrologic properties of the aquifer, and can be designed using the computer model developed for this analysis. If you have any questions, please give me a call. Sincerely, McGrane Water Engineers, Inc. Dennis McGrane, P.E., C.P.G Professional Credentials The technical material in this report was prepared by or under the supervision and direction of Dennis McGrane P.E, C.P.G., whose seal as a Professional Engineer in the State of Colorado and American Institute of Professional Geologists (AIPG) Certified Profession Geologist (CPG) are affixed below: McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@incgranewater.com Web: ttp://wtitiw.incgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 4 APPENDIX A - GROUNDWATER EVALATION AND MODELING The proposed DPG gravel pit mine is located approximately 3 miles east of Greeley, Colorado in Sections 1, 11 and 12, Township 5 North, Range 65 West (6th PM). The site is located just upstream from the confluence of South Platte River (SPR) and Cache la Poudre (Poudre) River. Available Data We compiled hydrogeologic data from: • Existing reports from the US Geological Survey and Colorado Division of Water Resources (see Sources below); • Well completion reports from 206 registered alluvial wells (SEO wells) from the State's Well database located within two miles of the site; • A "Preliminary Materials Study" conducted at the DPG site (Cesare, May 2, 2019) that includes 9 borehole logs; and • Monitoring well data from the site provided by JTC. Figure Al is a Google Earth image that shows: the planned pit, existing permitted wells (color coded by use), pit monitoring wells (cross shapes) and the model boundary. Most of the existing wells are used for domestic water supply and irrigation. Hydrogeology The hydrogeology of the SPR alluvial aquifer is described by Lindsay and Others (1998 and 2005), CDM (2006 and 2013) and CSU (2013). Figure A2 shows the site surficial geology (Braddock and Cole, 1978). The alluvium within the model areas consists of alluvial sand and gravel (Qa) adjacent to the modern SPR and Poudre flood plains, and older terrace alluvium (Qg) outside the floodplain The site materials study (Cesare, 2019) confirmed that the aquifer consists of primarily sand and gravel. Bedrock consist of the Laramie Formation (K1), which is primarily a black shale that is exposed in the northeastern and southeastern corners of the model. Table Al includes depth, perforation top and bottom, water level, yield (gpm) and calculated saturated thicknesses (well depth- static water level) from the SEO wells. The bottom of the table includes well statics. Well depths range from 7 to 165 feet and average 61 feet. Two alluvial wells (permit numbers 13580 and 14245) were drilled deeper into bedrock and not included in the average. Well yields range from less than 15 gpm for domestic wells to 1,900 gpm for irrigation wells. The depth to water ranges from 2 to 53 feet and averages approximately 20 feet. Water level elevations above mean sea level (msl) were calculated at each well by subtracting the depth to water listed in the well permit from the site elevation obtained from 10 -meter Digital Elevation Model (DEM) data. The calculated saturated alluvial thicknesses range from 10 to 119 feet and average approximately 45 ft. McGraw Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: denrns@mcgianewater.com Web: ttp://www.mcgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 5 Table A2 shows the DPG borehole/monitoring well data. The average site depth to water, depth to bedrock and aquifer saturated thickness are 6.5 ft, 83 ft and 76.4 ft respectively. Figure A3 shows the distribution of well data around the DPG pit. Seasonal Water Level Changes Table A3 shows the three water level measurements taken at each DPG monitoring well this spring. The average levels are used for aquifer water table elevation targets (see Model Runs and Results below). Between April 19th and May 29th, 2019, the water levels rose approximately 1 to 2 feet. This rise is likely in response to seasonal river stage increases that increase aquifer recharge. The seasonal increase appears to exceed the modeled increase on the up -gradient side of the pit caused by the slurry wall (See Results), which makes it difficult to distinguish between natural fluctuations and pit "impacts. Water Level Contours Figure A2 shows water table elevation data from wells and river elevations interpreted from US Geological SurveylOm Digital Elevation Model (DEM) data sets. We contoured the data using the US Geological Survey (Hurr and Schneider, 1972) water table map as a guide. The contours show that both rivers are gaining throughout the model area. Bedrock Elevation Contours We also updated the Hurr and Schneider (1972) bedrock elevation contour map (aka. structure map). Figure A4 shows a deep (over 100 ft deep) paleochannel extending east -west through the pit area. Saturated Thickness We plotted the aquifer saturated thickness on Figure A5. The map shows how the aquifer thickens within the paleochannel and thins away from the rivers. Hydraulic Conductivity and Transmissivity The aquifer hydraulic conductivity (K) is the measure of aquifer permeability (ft/dy). The Colorado Division of Water Resources (DNR) complied available K data for an extensive groundwater model used for the South Platte Decision Support System (CDM-Smith, April, 2013). SPDSS Task 43.3 (CDM-Smith, December 6, 2006, Figure 5c) shows contoured K's in our model area ranging from approximately 250 to 550 ft/day (397 ft/day average) which is a reasonable range for sand and gravel. The distribution was created by interpolating K's obtained from nearby pumping tests. We did not attempt to improve upon the State's distribution because aquifer data obtained from other methods is not as reliable as pumping test information. The aquifer transmissivity (T) is product of the aquifer K multiplied by the saturated thickness. An aquifer thickness grid was created by subtracting the aquifer structure grid (Figure A4) from a water table grid (Figure A2). Then the aquifer thickness grid was multiplied by the K grid (Figure A4) to create a transmissivity grid. We compared our T values with the USGS transmissivity map McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: deimis@mcgranewater.com Web: ttp://www.mcgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 6 prepared by Hurr and Schneider (1972). Figure A7 shows the highest transmissivities (200,000 - 375,000 gpd/ft) are in the paleo channel that runs through the DPG site. These values are in the same range as the Hurr and Schneider contours. However, we believe our distribution is more accurate because we used the additional bedrock elevation data and the K distribution prepared by CDM-Smith (2006). Modeling We used the USGS (McDonald and Harbaugh, 1988) MODFLOW modeling program to evaluate the existing and future groundwater conditions at the DPG pit. We used the Visual MODFLOW (VM) classic interface (version 4.6.0.167) to construct, run and display model results. The model area is approximately 4 miles high and 5 miles wide (west to east) centered on the pit. The model consists of 119 rows and 142 columns using 200 foot square model cells. Model Boundary Conditions Model boundary conditions include the S. Platte and Poudre rivers, bedrock boundaries on the model bottom and most of the northern boundary, and constant head cells on all sides to allow water to freely flow in and out of the model at gradients determined by the water table contours (Figure A2). We assigned model river cell stage elevations every 10 feet using 10m DEM data, and then used the VM interface to interpolate the assigned values. The western -most, up -gradient elevation was 4618 ft (msl) and the eastern -most down gradient elevation was 4581 ft (msl). The water level gradient from west to east is approximately 0.0013 which is calculated by dividing the difference between river elevations on the ends of the model (37 ft) by the E -W model length (28,400 ft). We modeled the aquifer's connection to the river using the MODFLOW "River" package which uses a streambed conductance term (COND) to calculated flow from one to the other in proportion to the hydraulic gradient of adjacent. A high level of connection mitigates impacts by allowing water to freely flow between the river and aquifer. Therefore, by, using the lower end COND value that the data supports, our model creates more conservative (ie. more) modeled impacts. COND is calculated as the product of the streambed unit conductance (Ksb/m) times the wetted river area (length * width). Ksb is the streambed vertical permeability and m is the streambed thickness which we assume is 1 ft so that Ksb/m equals Ksb. CDM-Smith (2006, Figure 9) evaluated the streambed permeability at three sites (SC -8, SC -13, and SC -14) within 10 miles of the DPG pit, and came up with Ksb values ranging from 362 ft/day to 404 ft/day.We believe these rates are too high because they are too close to horizontal K (kh) values. Tests conducted in 2009 by Leonard Rice Engineers, Inc. (Denver, Co.) in Twn. 2N., Rng. 66W., Sec. 18, arrived at a Ksb value of 36 ft/day (Miller, 2009). We believe 36 ft/day is more accurate because it was determined through rigorous aquifer testing and is approximately 10 times less than the Kh value. A 10:1 Kh/Kv ratio is a common ratio used for alluvial aquifers. Therefore, to be conservative, we decided to reduce the connection to the river by using a Ksb of 36 ft/day. Based on average streambed widths measured from Google Earth (1/27/2017), we calculated COND values shown in the table below. McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dernus@mcp, anewater.com Web: ttp://www.mcgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 7 River Stretch Length (ft) Width (ft) Ksb/m (day" -1) COND (ft^2/day) S. Platte Upsteam of confluence 200 110 36 792000 S. Platte Downsteam of confluence 200 130 36 936000 Poudre Upsteam of confluence 200 55 36 396000 "Calibration" Results' We conducted two model runs to evaluate the effect of installing a slurry wall around the DPG Pit. Run <DPG_SS2> simulates the pre -mine water table. Figure A8 shows the resulting water table gradient through the model area compared to improved published elevation contours shown on Figure A2. At the project site, the modeled root mean squared error (RMSE) of the modeled heads compared to measured values is only 1.4 ft as shown in the "calibration" plot below. Nam ofOtl. Points :9 Standard 6aot oltlro60*We 0.174(9) Rol Yem 4anoss0 :1.026 (9) Normite0NYS_2{.666[%) ConaY9opCx6kNat: 0.992 1!¢ Resdu.t 1.96 (9) st %W IIA Mn Resi9w(O.I8000011(W7G ReeiWY 9000:: 1309 (10 Abs. Residual Ikea :1339 (0) The modeled vs. observed values have a correlation coefficient of 99.2% which is only 0.8% away from a perfect 1:1 relationship. We believe the modeled vs. observed heads would be closer if we lowered the 4600 ft msl SPR river elevation by 1 to 2 feet. This action would be justified based on the potential measurement error in the 4,600 ft DEM elevation. However, we feel the action would not significantly affect the "impact" results of the model, so we did not make the change. Mass Balance Table A4 shows the model mass balance results which shows the inflow and outflow components that include constant head and river cell flows in and out of the model. The total aquifer inflow is approximately 19 cfs with only 4 cfs leaving the model. As a result, the rivers gain approximately 15 cfs with the model area. Pit 'Impacts' In run <DPG_SS2_wPit>, the pit model cells are turned off to simulate the effect of the slurry wall around the pit. Figure A9 is the contoured "difference" in model output heads between the post - pit run minus pre -pit run determined using GIS grid -math techniques. Positive values on the west McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: demos@mcgranewater.c:om Web: ttp://Katitiw.mcgranewaterengineering.com . Mr. J.C. York July 3, 2019 Page 8 and southwest sides of the pit reflect mounding and negative values on the east side reflects lower water levels in the "shadow" of the pit. The maximum change in water level is less than 0.75 foot at any point around the pit. The downstream impact is constrained between the pit and the rivers at the confluence where no wells or structures exist that we are aware of. Model Sensitivity The modeled mound and "shadow" impacts are insensitive to the hydraulic conductivity (K) of the aquifer. An increase in K causes a proportional increase in model inflows, but also increases the hydraulic connection with the creek which offsets any additional mounding or shadow effects. Therefore, not change will occur. The model results are very sensitive to the presence of streams, but there is no realistic chance that either river will cease flowing due to strict river administration by the State. Model results are insensitive to streambed leakance. Even using a conservatively low Ksb value of 36 ft/day, the rivers are large enough and aquifer permeable enough to quickly respond to changes in groundwater levels caused by the pit. Model Uncertainty There is uncertainty in our predictions related to measurement and modeling error. USGS 10m DEM Data was used to assign ground elevations to off -site wells. The overall accuracy of expressed as the root mean square error (RMSE) for 10m DEM data for one study in (Haneberg, 2006) is 1.87 m or approximately +/- 6 ft. The accuracy of surveyed site well elevations data is much higher, probably within a tenth of a foot; and the accuracy of hand -measured water levels can vary several inches. Our modeled predictions (Figure A9) include three types of error: 1) conceptual error (how the model is set up and what boundary conditions are used); 2) parametric error (how aquifer properties are measured and calculated); and 3) predictive error (which includes other influences such as seasonal recharge or climate change variations). It was beyond the scope of this project to quantitatively evaluate the sum of these errors which results in considerable uncertainty. To account for uncertainty, we doubled the modeled changes shown in Figure A9, and are using Figure A10 as our more conservative "change" estimate. Potentially Affected Wells We identified two wells that within the area of impact shown on Figure A10. Well 118187-A is a domestic well permitted to Weld County that is located within the pit boundaries. We assume that it is either mislocated, abandoned or will be abandoned as part of the pit development plan. Another well belonging to James Mathews (permit no 83280) is located approximately 650 feet west of the site and is the closest up -gradient well to the pit. After doubling the model results, we estimate that water levels could rise 0.5 to1.0 ft at this location (Figure A10). Table 1 provides tabulated location , depth, perforated interval, static water level, saturated aquifer thickness and reported well yield for the two potentially impacted wells. McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@mcgranewater.com Web: ttp://wrytiw.mcgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 9 Table 1— Potentially Impacted Wells Permit Number DEM Elev (ft) Contact Name Town- ship Rng Sec Qtr -Qtr Use(s) Well Depth (ft) Perf. Top Depth (ft) Bot. Parr. Depth (ft) Static Water Level (ft) Sat. Thick. (ft) Yield (gpm) 83280- 4611.3 MATHEWS, JAMES L. 5.0 N 65.0 W 11 SENE Domestic 82 62 82 11 69 20 118187--A 4607.6 WELD COUNTY 5.0 N 65.0 W 12 NWNE Domestic 40 20 40 10 -- 15 The reported static water level of the Mathews well is 11 feet below ground level. If the home has a basement, it may already be vulnerable to flooding and have a sump pump. Another 1 ft rise caused by the pit could cause basement flooding. However, if the impact can be solved by simply installing a more reliable sump pump system, we recommend that the mine operators do so. Because only one well will likely be impacted, we do not believe the overall impact of the mine is significant. Monitoring and Mitigation We recommend that the Mine Owners should: • Contact the owners of potentially affected wells shown on Table 1 and conduct a more detailed evaluation of the potential impacts and e mitigation options; and • Install more monitoring wells west of the pit, to monitor and protect up -gradient homes in case our predictive analysis is incorrect or in case seasonal fluctuations in the water table cause localized basement flooding. The Mine Owners could also install a drain on the up -gradient side of the pit that intercepts groundwater and transports it to the down gradient side where it could be recharge the aquifer. This passive mitigation system would operate whenever water levels rise into the drain on the up -gradient side of the pit. The depth, location, and size of a drain will depend on the timing and location of rising water and hydrologic properties of the aquifer and can be designed using the existing model: Sources CDM-Smith, April, 2013a. South Platte Decision Support System Alluvial Groundwater Model Report. CDM-Smith, December 6, 2006: SPDSS Phase 3, Task 34.3 South Platte Alluvium Region Aquifer Property Technical Memoradum. CDM-Smith, June 9, 2006. SPDSS Phase 3, Task 34.3 Streambed Conductance Technical Memoradum. Colorado Division of Water Resources (CDWR), June, 2019. Well permit websit search: http://www.dwr.state.co.us/WellPermitSearch/ Cesare, Inc., May 2, 2019. Preliminary Materials Study — DPG Mine Permitting Monitoring Well Installation Weld County, Co. Project No. 19.3016. Letter report to J.C. York, J&T Consulting, Inc. Colorado State University (CSU), December, 31, 2013. HB12-1278 Study of the South Platte River Alluvial Aquifer. Report to the Colorado Legislature. McGrane Water Engineering, LLC C 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 L -Mail: dennis@mcgrrnewater.corn Web: lip://ww s incgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 10 Haneberg, August, 2006. Effects of Digital Elevation Model Erros on Spatially Distributed Seismic Slope Stability Calculations: An Example from Seattle, Wa. Environmental & Engineering Geoscience, Vol. XII, no. 3, August, 2006, pp. 247-260. Hurr, R. Theodore, Schneider, Paul A., and Others, 1972. Hydrogeologic Characteristics of the Valley -Fill Aquifer in the Greeley Reach of the South Platte River Valley, Colorado. USGS Open File Report 93-124. Prepared in cooperation with the Colorado Water Conservation Board. Lindsay, D.A., Langer, W.H., and Knepper, D.H., 2005. Stratigraphy, Lithology, and Sedimentary Features of Quaternary Alluvial Deposits of the South Platte River and Some of its Tributaries East of the Front Range, Colorado. U.S. Geological Survey Professional Paper 1705. Lindsey, D. A., Langer, W. H., and Shary, J. F., 1998, Gravel deposits of the South Platte River valley north of Denver, Colorado, Part B - Quality of gravel deposits for aggregate: U. S. Geological Survey Open -File Report 98-148-B, 24 p. McDonald, M.G., and Harbaugh, A.W., 1988, A modular three-dimensional finite -difference ground -water flow model: Techniques of Water -Resources Investigations of the United States Geological Survey, Book 6, Chapter Al, 586 p. Miller Groundwater Engineering, June 29, 2009. Groundwater model evaluations of the Broomfield Well Field. Letter report to Dennis McGrane, Leonard Rice Engineers, Inc. McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: demos@mcgranewater.com Web: ttp://www.mcgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 11 TABLES Table Al - SEO Well Permit Data Permit DEM Elev Number (ft) 118194--A 4595 -R -R 156434- 11651 -R -R 20033 -R -R 161560- 4635.5 4657.4 4616.3 4633.5 4637.5 4624.4 Contact Name Town- Rng Sec ship Qtr -Qtr± Use(s) Domestic, I HOP, A 5.0 N I 65.0 W j 13 NESW �.. Stock 66 I 26 66 _ _,:.... _r._..._,..._.a.. .__. __I._._._.__....E_._ Well Depth (ft) AIKENSGEORGE &I5.0N 65.0W 1 2 NWNWI Municipal 135 I 71 CARLY I �BREICKLER DAVID Household 5.0 N 65.OW 14 NWNEI use only 1 34 I 14 34 I 4.7 II 28.8 i 15 R&BRENDA HOSHIKO FARMS � r-____—___ i.._.__._,..)___.__._r,_._._________..__�...__ 5.0 N 65.0 W I 13 SWSE I Irrigation 54 i 35 55 I 17.5 37.5 1100 INC I 1 Perf. Bot. Static Sat. Yield Top ' Perf. Water Thick. Depth ` Depth Level (ft) (ft) (gPm) Ik) ' Ift) 15 51 40 133 39 96 1040 HOP, ANDREW 5.ON 65.0W 13 WICKERSHAM, 5.0 N 65.0 W 12 WILLIAM F Irrigation Domestic 58 38 61 I 41 20_5 ti_ 37.5 1000 23 ( 37 15 41257-F 4643.9 ICHURCHOFJESUS ; 5.ON 65.OW1 CHRIST 183783- 4616.3 ; LANGE, LESLIE V 1I 5.0 N 65.0 W 11 MCDONNELL, 192441- 4616.1 , 5.0 N 65.0 W I 11 ttl WILLIAM M. I NOFFSINGER*- 7161-R-R 4653.2 MANUFACTURING. 208860- 221852- I 222001--A 243278- 264562- 63180-F 64677-F CO INC NENW ! Irrigation 88 I 36 88 SESW I Household 37 1 17 37 5 32 I 15 SESW ; Household 60 i 40 60 I 4 51 1 15 I use only ' 5.0 N 65.0 W 2 NENE I Irrigation 78 48 ......t...78 27 48 I 700 4— BANGHARTSCOTTT µ I Domestic, 4623.4 5.0 N 65.0 W 14 NESW i 40 I 35 - 40 &TAMMERA -1. Stock CORRALES, I Household 4630.4 5.0 N 65.0 W 10 SESE 56 I 36 ANTONIO_ I use only r" —r"— - 'T— SINKIE COLLEEN 5 0 N 65 0 W 10 SESE ; Domestic 74 I 54 1 Household 4643.1 SWSE ; 60 40 use only GRIEGO, Household 4630.5 5.0 N 65.0 W i 10 NESE I 95 1 60 use only 1 •Commercial, 4629.8 t NENW 1 65 25 I Other 4639.1 i 5.0 N 65.0 W ' 30�SESE I Irrigation 6415 -R -R_4 4636.4 65240 -F -R 208899--A 280476- 4612.6 76222-F 11611 -R -R 291552- 292614- 145 -RD -R 292614- 145 -RD -R 335 -RD -R "I 4183-F 9628- 11347-F 21961- 26883- 26980- 37838- N ' KATERIE MARIE j MORALES, JORGE 15.0 N' 65.0 W ' 10 HELENA I CHEMICAL 15.0 COMPANY I SINKIE COLLEEN KATERIE MARIE AJR FARMS 5.0 N 65.0 W 13 NESW i Irrigation -r DIAMOND 4640.2 s 5.0 N 64.0 W 6 FEEDERS LLC BANGHART p 4620.4 ARNOLD 5.0 N 65.0 W 1 14 4610.6 WELD COUN SHAKLEE HOWARD! 4631.3 IRREVOCABLE 5.0 N 64.0 W 18 1 TRUST I , CLARKJAMES R & I 4619.1 : 5.0 N 65.0 W 14 CYNTHIA K COUNTY KENNETH) N 64.0 W 19 8 27 I 15 56 I 19 `` 40 15 74 I 28 47 1 15 60 28 ` 25 15 89 I 16 71 I 15 65 s 17 41 , 50 i s 76 I 36 76 I 19 I _ 24 f 42 i 62 !- 24 1 SENE I Commercial 1 74 I 54 74 I. 49 1. ..---1-'------ I NESW I Household use only i 5.0 N 65.0 W I 1 , NESE I Other 3 43 I 22 ; 43 { 17 56 190 33 i 1100 23 1 180 160 I 32 1 52 I 9 40 1 15 T-- 64.0 W 6 NESW Stock 111 50 111 I 12 99 1 500 20 ttt 650 I 58 21 34 I 1050 i 1 32 I 14 CARLETON & OS N 65.0 W i 14 4636.5 DEJONG LLC 4633.7 FARR FARMS CO 5.0 N 64.0 W I 6 4642.9 [ FARR FARMS CO I 5.0 N 64.0W 6 NWNW KLEIN JAMES D & ! 5.0 N 64.0 W 7 BETSY A l 4623.8 4606.2 4648.5 4605.2 4633.6 4633.6 4628.6 VANTAGE BUILDERS INC 5.0 N HICKLIN CLINTON 5.0 N BUD BOSCH PETER & 5.0 N ! 65.0 W 13 HENRIETTA CHURCH OF JESUS; CHRIST 15.0 N 65.0 W 1 SWSW 1 Irrigation I 58 1 38 NWSE 1 Domestic, 40 - I 20 { Stock S SESE I Domestic, I Stock 40 i 56 1 36 I 56 1 21 35 15 NWNWI" .Commercial 1 165 ' 119 165 I 45 I ▪ 119 91200 T 1 Irrigation ' 158 I 95 I 158 I 44 I 113 ; 1679 NWSW i Irrigation i• NENW Stock NWNWI Irrigation NWSW I Domestic MITANI, TAYEKO 15.O N 64.0 W j 6 HIRD, DONALD 5.0 N 65.0 W 13 NENW Stock 25.4 I, 60.6 900 65.0 W I 13 NENW Domestic 65.0 W ; 13 65 41 65 I 26 ---'r 63 I 42 63 21 38 23 38 I 26 39 I 1150 40 I 50 10 I 250 28 1 8 NENE Domestic 47 35 47 1 18 60 I 51 I 60 24 I 37 I 20 61 1 52 61 1 24 ! 37 I 20 55 I 35 55 i 22 j 50 I 30 Q , : McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@mcgranewater.com Web: ttp://www.mcgranewaterengineering.com • Mr. J.C. York July 3, 2019 Page 12 46535-DW 4604.9 52960-MH 4635.9 81387--A I 4628.7 118187--A l 4607.6 122362--A i 4643.1 12017 -R -R 4627.5 Permit ! DEM Elev ' i Town - (ft) Name Number (ft) ship Rng Sec Qtr-Cltr Use(s) Well ( To Pert Static Sat. Yeld Depth Depth Depth Water Thick. I Wm) (ft) ! (ft) Depth Level (ft) (ft) KRIER ROLAND T 42978- 4619.2 &JOYC ALICE I WALKER HAROLD 48559- 4637.7 &JANELLM 5.0 N ! 65.0 W 14 NWSE i Domestic 50 25 1 I I 5.0 N 65.0 W F 23 N WN W i Domestic i 72 52 50 6 72 i 22 38 60 46 i 15 82267- 4629.8 KLEIN, JAMES D i 5.0 N 64.0 W 19 I MATHEWS, JAMES! NENW i Domestic, 65 25 Stock 65 f 17 I 83280- 4611.3 5.0 N 65.0 W 11 SENE i Domestic , 82 62 _-.._ --i_ ��_..1--._...__-_-.-_----_- 86129- 4648.6 I WAGNER JOE JR 6.0 N : 65.0 W 36 SWSW i Domestic ! 41 _..95100` 4615.8 I MARCY, DEWEY R 5.0 N ; 65.0 W 11 SWSE ; Domestic 50 ! 20 CARLSON i+ E ( Commercial, I 168216--A 4624.0 ± CORWIN L& 5.ON 65.OW ! 15 NENE i Stock i 66 i 46 KATHERINEJ 171640--A 65244-F 65243-F 65242-F 275685--A 289696--A 80233-F 588-WCB 664-WCB-i 4646.7 ! LYSTER, CYRIL E 6.0 N 165.0 W ) 36 27143-F 4620.6 CENTRAL CO WATER CONSERVATION DIST JBS SWIFT BEEF COMPANY HINOJOSA RODRIGO &/OR 5.0 N 65.0 W KATHLEEN r 4662.6 4640.9 4639.8 4636.6 4616.8 4616.6 82 I 11 41 25 50 66 8 25 41 25 CHURCH OF JESUS CHRIST/LDS DIAMOND FEEDERS LLC DIAMOND FEEDERS LLC 6.0 N ! 65.0 W 36 SWNW i Domestic ; 60 40 60 30 5.0 N 164.0 W 6 SENE i Commercial 74 54 74 47 5.0 N 64.0 W { 6 SENE Commercial I 93 63 93 r 53 DIAMOND FEEDERS LLC 5.0 N 64.0 W 6 DUVALL FRANCIS 5.0 N 65.0 W i 11 & SHARON CLARK JAMES R & 5.0 N i 65.OW I 14 CYNTHIA K NEW CACHE LA 4597.9 i POUDRE 5.0 N 64.0W 6 IRRIGATION 4619.2 JENSEN, MARTHA ; 5.0 N 165.0 W i 14 I I i NWNE i Commercial I 90 60 90 35 NWSW Domestic I 60 37 57 7.5 SWNE I Domestic, f 40 20 � Stock > Industrial, I SWSW ! Irrigation,; 76 I 46 IOther -+- I SWSE i Irrigation , 73 -i 52 73 ' 20 N W N W I Irrigation 62 i 41 JOHNSON, W C ! 5.0 N 165.0 W I 11 NWSW I Domestic a 55 35 I I 12 NESE Dewatering I 53 ! 26 i J - 6.0N 64.0W 31 NWSE japiing Monitoring/Si20 I 9 5.0N 1 65.0W 24 15 26 480 40 50 54 60 47.5 15 40 I 3.5 30.5 15 73 I 6 67 1900 I 62 55 56 32 7 ) 19 12.46 i; 47 ( 10.5 i WELD COUNTY 5.0 N 165.0 W I BERNHARDT, R 5.0 N 65.0 W !SHAKLEE HOWARD IRREVOCABLE TRUST 10 SWS1- 5.0 Domestic 100 70 100 I- N 64.0W 18 NWSE Irrigation 4 70 50 I 10 NWSE Domestic l 47 28 -- 30 I 12 NWNE T Domestic L 40 20 40 ; 10 -- , 15 30 _ I 15 53 27 1500 1100 15 1500 4.5 70 22 600 DILL TERRY 8, 76130--A-` 4641.8 5.0 N ' 65.0 W 10 SESE SHARON GONZALEZJESUS L 157469- 4611.3 & ELVI RA V 5.0 N 65.0 W 11 NWSE -� ;CHURCH OF JESUS ~ 14962 -R -R I 4644.2 i CHRIST 5.ON i 65.0W 1 NENE Stock 100 ! 75 Household -3 59 $. 39 use only 3 Irrigation j 132 99 95 24 59 129 1 42.7 15 15 1200 - , CLIFTCLIFFORD Wr ' 205705- I 4640.8 5.0 N 65.0 W & SALLY J 222813- ttl 4604.8 MARCY, DEWEY 5.0 N 65.0 W 1 I ROADIFER, 5.ON 242466- 4603.3 CATHERINE 241101- 4613.8 RODRIGUEZ, -+- ARMANDO i I 15 NENE f Household 80 ' 60 NESW Commercial 70 I 50 65.0 W) 12 I N WSW i Stock 46 1 i Household t 5.0 N 65.0W I 11 NWSE use only 65 26 45 80 I 23 15 70 i 30 15 46 i 8 65 4 15 15 j SHAKLEE HOWARD I I 250105- 1 4628.4 j REVOCABLE 5.0 N 64.0 W s 18 SESW Domestic I TRUST t 99 r ICOLORADO STATE 11 6706 I 4634.9 i 5.0 N 65.0 W 2 SWSW I Domestic 1 86 i 66 _-, OF ADJUTANT ! -- ...._____L__ ________._;~.__.. __- 15107- I - 4611.2 i NORDHALM a 5.0 N 65.0 W 11 SWSW I Domestic I 27 f 18 ! i ELMER & SHIRLEY i -- i CYPHERT,ROBERTI ! 30675- I 4611.2 I ! 5.0 N 65.0 W 11 NWSE I Domestic , 46 i 37 i J I I ! I 1-- 58 y 15 86 I 24 -- I 20 27 ! 6 • 20 46 4 -- I 30 McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@mcgranewater.com Web: ttp://www.mcgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 13 Permit Number DEM Elev Town - (ft) Contact Name ship WELD COUNTY 30718- ; 4644.9 I MUNICIPAL 5.0 N 65.0W 2 SESW Domestic AIRPORT Rng € Sec Qtr -Qtr Well ; Perf. I Bot. Static Sat. Use(s) Depth Top I Pelt i Water Thick. (ft) Depth Depth Level (ft) (ft) (ft) (ft) WELD COUNTY I 30719- 4644.9 i MUNICIPAL 5.0 N 65.0 W I 2 I SESW { Domestic AIRPORT I I GOZA, CALVEN T 5 0 N ' 65 0W , 12 i NWSW Domestic 33 , 24,,,_i_____33 i PLUMB, LUCILLE 5.0 N 64.0W 4 7 I SENW Domestic 40 3 31 j 40 I WELD COUNTY I 32958- 4644.9 I MUNICIPAL 5.0 N 1 65.0W I 2 1 SESW Domestic 60 I_.__ AIRPORT _ 1 1 i OHLEMACHER, L' _ _ . ` __ ; .W.. _r. 56099- 4611.2 , 5.0 N 65.0 W I 11 I SWSW I Domestic 50 E 30 30883- 4604.6 32613- j 4599.2 I JERRY....1_. _..._...__._.___..M..� .._.__._.mow..__. � ._....._ 81355- 4632.9 I GREELEY CITY OF 5.0 N 65.0 W ; SESW Other 78 60 2 I NICCOLI CHARLES ! I 123793- I 4658.8 I 5.0 N 65.0 W I 3 NENE ; Domestic 99 l 79 I 99 ! 40 E& JUDY M !a 141-2-i9--1 4643.1 I. GERBITZ, LLOYD 5.0 N 65.0W I 10 I NWSE I Household 120 I 90 a 120 I 26 13196--A I 4659.0 I MURATA, GENE 65.0 i 2 NWNWI Domestic 100 80 1 100 I NEW CACHE LA iI I Industrial, 80234-F 4603.7 I POUDRE 5.0 N 64.0 W I 6 # NESW I Irrigation, 83 i i I 6 I IRRIGATION { I Other I 443-WCB ; 4637.2 BAKERINK, C F 15.0 N 65.0 W 1 NENE I Irrigation 118 78 118 571-WCB 1 4654.7 I MARTIN, DAVE 5,0N 65,0 W i 2 INWNWr Irrigation 120 I 99 I 120 I 38 574—WCB I 4647.4 e KIGHT, L A i 6.0 N 65.0 W I 36 1NWSW i Irrigation I 38 I 17 38 20 ANACAPA LAND p 5 Monitoring/S I I 39900-MH 4598.6 I 5,0 N 64.0 W 7 SWNE , 103 I 63 i 103 6 CO LLC- ( 1 ampling 60 51 60 i 34 60 51 I 60 2932 -F -R 34- 1543 1 2591- i 4406- I 4633.2 AIR FARMS 5.0 HOLLOWAY, 4652.4 13580- _ I 4619.2 14245- 18691- 1 I E M ANACAPA LAND 39902 MH I 4596.3 X5,0 N CO ANACAPA LAND -1 39903-MH I 4596.3 ! CO 5.0 N ANACAPA LAND 4595.7 5.0 N CO 4594.1 ° -- 1O�Rwer 5.0 N 164.0 W E_7' SENE 4595.7 I- � E `f 5.0 N 64.0 W 7 i NESE 4622.2 i ADAMS, HENRY 1 5.0 Nmi. 64.0 W 18 I INOFFSINGER MFG I I 1 4648.2 I CO 6,0 N 1 64.0 W E 31 J SWSW I Irrigation , 165 17___-_.__.x.__..___,._ _ - -.____- _..__. I NORTH FRONT 19090-MH 4656.7 I RNG WTR QUAL 6.0 N 65.0 W I 36 SWNW I Monitoring I 44 29 ! 39 i 39 PLAN 24586 MH I 4623.2 VATI , 5.0 N 65.0W 3 1 SWSE ( Monitoring 27 1 15 25 i 7 EXCAVATING R , I 555 _ I__ _:1.._ I_— F I__ AIR NATIONAL 39697-MH l 4634.9 i 5.0 N 165.0 W I 2 I SWSW i Monitoring 46 i 23 'r 46 I 30 GUARD STATION g I 45248 MH F 4639.8 s CERVI, MIKE 16.0 N 65.0 W i 36 ISESW I Monitoring 32 I 25 i 35 N 65.0W I 13 65,0 W I 35 39904-MH 279602- I 279603 618-WCB 145 -RD -R SWNE { Irrigation NESE Domestic, 61 MARQUERITE ; I Stock RAYBURN JOHN I I 1 4637.2 MRS 5.0 N 64.0 W i 5 I SWNW I Domestic BOSCH PETER & I 4634.6 a 5.0 N 65,0 W E 13 , SENW I Domestic 60 _._-,HENRIETTA___ _s._.__.._..,!_,.- I _,_,_-__._-_-__-- ROMBERGER I I 4644.2 _ 6.0 N 65.0 W 36 , SWSE 1 Domestic FERN D MRS ROODEN PAUL HAROLD & 5.0 N BARBARA ANN 4619.2 ROSS WILLIAM ; 5.0 N 65,0 WI 14 I JESW I Domestic BORYS, RICHARD 9 I I 5.0NI65.0WI 12 I 4623.7 65.0 W 14 31 NENW I Domestic 252 , 363 I 53 3 —; 34 -r_ SESW Domestic 45 I 36 45 61 25 70 1 50 ; 70 6 64.0 W I 7 I NESE = Monitoring �—_ I I - 164.0 W I 7 I SENE I Monitoring 58 38 I 58 i 6.6 I i 64.0W I 7 I SESE 1 Monitoring 69 49 69 i 6.2 I Monitoring 58 38 58 3 2 Monitoring 1 55 35 55 2 -4-.. --, 68 59 I- 68 22 119 I 165 45 I Yield (gpm) 20 20 - 15 ..._ 30 I rv16_ -- ! 31 100 35 McGrane Water Enimeering, LLC 1669 Apple Valley Rd. + Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: delnsis@mcgranewater.com Web: ttp://tiww.sncgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 14 Perms Number DEM Elev I Contact Name (ft) i € i Town- ship I Rng ? Sec i Qtr -Qtr I ! Well Use(s) i Depth (ft) Perf. Bot. Top Perf. Static + i 1 Water Depth Depth (ft) (ft) € Level (ft) Sat. Thick. (ft) Yield } (gpm) # 45249-MH 4632.3 sCERVI, MIKE 5.0 N I 65.0 W E 1 I NESW I Monitoring ' 60 i -- -- -- - f -- 45250-MH 45661 -MN 45663-MH _---. 48186-MH i 48748-MH i3 53371 MH 58629 MH 1 _ 4634.2 CERVI, MIKE ; 4604.9 1 HALL IRWIN CORP 1 4609.1 HALL IRWIN CORP 5.0 N 5.0 N j 5.0 N 65.0 W 1 ! SWNE Monitorin 60 65.0 W ;_ 12 1 NESE i Monitoring i -- 65.0 Wj 12 ' NWSW-r I Monitoring I -- -- i -- I -- -- -- I -- 4595.7 JOURNEY 5.0 N 4612.2 ERO RESOURCESTI 5.0 N 64.0 W E 7 _ j_ SESE L Monitoring I 65.0 W 11 NENW j Monitoring-- -- i 4.2 i -- -- -- -- 1 I -- Y I JBS SWIFT BEEF ₹ 4646.3 I COMPANY _ 4646.5 I JBS SWIFT BEEF 6.0 N 6.0 N } 64.0W 31 SESE I 1 Monitoring 30 I Monitoring 50 20 1 35 i 30 1 -- I 50 I 30 -- I -- 64.0 W '+ 31 I SESE 86129--A 97830--A — _ 123793--A 1 4648.6 `: BOHMCO LLC i I 4620.8 CLARK, JAMES R I 6.0 N444: 5.0 N 65.0W `• 36 ' SWSWIF Domestic I Domestic, I Stock L 41 44 36 22 444_,; 16 41 36 1 I I 65.0 W 14 I NWNE I I I NICCOLI CHARLES 4658.8 I E&JUDYM 5.0 N I;I I 65.0 W I 3 I NENE 1 Domestic I1 99 79 99 y -- 9 -- € -- I 148328- ~; 4642.5 MICHAEL, DOUG r—.�...___. 1 4622.1 LORENZ, HERBERT 5.0 N 5.0 N 65.0 W 1 1O 65.0 W I 14 I NWSE I Household ,.�. Domestic, NWNWI ; Stock 85 -,- 65 85 19 -- -- -- 3 -- 15 1 159095- _______________1 198176- 30 -- [ -- rSHARP DONOVAN I 4627.2 J &JANEL D - 5.0 N T -- I i 64.0W 1 18 I NWSE I Domestic 60 -- -- -- -- -- 223448- 276114 1 HINOJOSA I 4626.1 I RODRIGO & I KATHLEEN 5.0 N 65.0 W I 10 NWSE Domestic 45 -- ( -- _ -- 4619.5 EXCAVATION _LL I LWM WASHOUT 1 4645.5 LLC II I 4623.3 I REAM, JANET L i STANLEY, VICTOR ( 4622.5 ! E I 4595.7 5.0 N r - 5.0 N 5.0 N i 64.0 W 17 , NENW I -- - ! 65.0W I 1 I NENE 65.0 W ---t 14 p. NESE Domestic, Stock �_ I Commercial 1 Other 90 �- -f 118 7 51 78 -- -- i i 118 I - i -- ( -- -1 -- " I I -- (____.._____.. I -- 67520-F 68973-F 285655- -.,. 79057-F 5.0 N I 65.0 W I. 10 I SESE I Irrigation ' i 5.0 N 1- , 64.0 W 1 7 11 SE I Other -- -F- -- ; -- 1 I I . 307422- ' 4613.8 ISPELLANE, MEGAN 5.0 N � � ; Domestic, 65.0 W ' 13 INWNWI 60 I 1 Stock -- I -- I -- -- -- 313449- __._ 190-RD J 226-R 302-R 304-R 910- NORTHERN 1 4610.1 I 1_ WATERt- 4652.4 E NOFFSINGER MFG a 5.0 N 6.0 N 5.0 N 5.0 N 5.0 N 15.0 N I 64.0 W 6 I NWSW I Monitoring 65.0 W I 35 NESE Irrigation J 65.0 W 1 11 ' SWSW 1 Irrigation 1 64.0 W 1 6 I NWSW' Irrigation 64.0 W I 6 NWSW 1 Irrigation I 65.0 W I 14 INWNW1 Domestic I I 49 I -- --—N- -- ` I -- i -- -- -- I I -- ' -- -- -- s ---I-- -- A I -- IOSTER LARRY/LISA ? 4619.0 I DALTON I 4612.6 i TOKUYASU, S TOKUYASU-__._.._ 4612.6 I ROBERT & BOB I MITANI 4619.8 I HERRICK, C E -„ 31 51 45 I -- 22 -- 45 985- 4635.3 I FLESHMAN, B A 1 70 RANCH RESOURCES 1361-R I 4624.9 I 1 DEVELOPMENT LLC 5.0 N 5.0 N 65.0 W 15 I NENE Domestic I -- i._ i I I 64.0 W 18 1 NESW 1 Irrigation 61 I I I I f I _ -- — — 28 I 61 -- I I' I _ -- I I -- I WALKER JOHN 3739- i 4608.6 J&SON 4507-R 4616.7 I GREELEY CITY OF 5.0 N 5.0 N 3 1 65.0 W I 10 I NWNE Domestic 65.0 W I 10 1 NESE 1 Irrigation I -- -- -- 4561- I 4616.4 'SCHMUNK, JAKE FANGMEIER 6023-R 4621.6 FREDERICK V & DOTSON BE COOK JAKE D & 6081- 3 4612.6 I DOROTHY 5.0 N 5.0 N 5.0 N 65.0 W I 10 ' SWNE I 1 65.0 W I 11 I NWSW 1 pp I I 65.0 W 1 it 1 NWSE I Domestic I -- I Irrigation ` , 1 Domestic -- -- 1 - 1 -- T - I -- -- I i-- _ i ' -- 6416-R 4633.8 I AIR FARMS 5.0 N 65.0 W ; 13 I SESW 1 Irrigation ; 59 -- I -- -- -- I -- McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 _Phone: (303) 917-1247 E -Mail: deimais@tncgianewater.com Web: ttp://wwsv.mcgtanewaterengineering.cons Mr. J.C. York July 3, 2019 Page 15 Permit Number DEM Elev • (ft) Contact Name Town- ship Rng Sec Qtr -Qtr, Well Perf. Bot. Top 1 Perf. Use(s) Depth ; Depth ` Depth (ft) epIfLep(ft Static Sat , Yield Water i Thick. Level (ft) (ft) ' (gpm) 8640-R 4641.1 i BOSCH PETER & 5.0 N 65.0 W 13 SWNE Irrigation 28 -- , -- -- -- t -- HENRIETTA -i- ! CARLETON & 1 8641-R 4619.2 DEJONG LLC i 5.0 N 65.0 W 14 I SWSE Irrigation 73 i -- ' , -- WAGNER JOEA& ! I i i 8743-R 4653.7 DORA 5.0 N 65.0 W 2 NWNE Irrigation -- -- -- -- 9230-F 4650.2 j CHURCH OF JESUS 60N 65.0W 36 I NWSE Irrigation 87 j 72 I 87 -- -- .......- CHRIST .�__, _ I _. _ __.__ _._..__._I . —__ _.__ ___.4- . _._ _ -.. 11182-R 4605.2 ! 4646.7 I 4622.2 STRAUSHEIM, RUDY 5.0 N 6.0 N 64.0 W 65.0 W 6 36 SWNW I Irrigation 73 i -- - -- -- ; -- -- 11188-R ZABKA DUAN E D & DOROTHY NWNE Irrigation j -- -- -- I t 11399-R GUNTHER EUGENE 5.0 N 64.0 W 18 SWNE Irrigation 51 22 51 -- t ! DUNN, CLARENCE 11604-R 4599.2 ' E 5.0 N 64.0 W 7 SWSW Irrigation -- -- -- _ _ I LOWER LATHAM - c 1-- 11605-R 4627.8 i RESERVOIR 5.0 N 64.0 W 18 NENW Irrigation 63 -- -- -- ; -- ......-__.._'-_ 11844-R 4622.2 %--'_-_COMPANY ___.. PUYPE, HELEN D ____-- 5.0 N ----_ 64.0 W _----------- 18 SENE -------------i-----'-�---..:_---- Irrigation f 85 55 _a___ 85 -----._--�-------I------ -- i 1- -- { -- 4611.2 iTHOMPSON,JOHN 5.0 N 65.0 W 11 NWSW Domestic -- j -- -- j11854- -- � -- i -- BENSON TERRY & 11964-R 4646.7 I SHARON 6.0 N 65.0W 36 NWSW Irrigation 45 -- ! -- -- -- -- 4648.9 12187-R rBENSON,ARNOLD 6.0N 64.0W 31 NWSW Irrigation -- -_- -- -- -- I -- CHURCH OF JESUS _ _ 12312-R 4615.3 i 5.0 N 64.0 W 6 NESE Irrigation 62 ; -- i-- -- - -- CHRIST 12985-R 4599.2 i KLEIN JAMES D&_- 5.0 N 64.0 W 7 SWSE Irrigation 72 I 48 I i 72 -- i -- BETSY A 4-- I --t -,- 13255-R 4624.7 BORYS, RICHARD 5.0 N 65.0 W 12 SWSE Irrigation y 72 -- -- -- ; -- ! -- 1 M i 13256-R 4604.6 LANE, CLAUD 5.0 N 65.0 W 12 NWSE Irrigation ' ! 13380-R 4605.2 r SILVAJOE-C& MARIE NANCY 5:0 N i 64.0 W 6 NESW � Irrigation 50 ) 20 I 50 -- -- ₹ -- 14178-R 4640.9 5.0 N 65.0 W 10 SESE Irrigation -- '- i "- i ! -- -- -- 4616.8 LOWELL G 1 - 14869-R VARRA i i COMPANIES 5.0 N _ -._.. 65.0 W 10 r-- SWNE 1� Irrigation ! 3 1 40 , 25 I 40 i ( -- I , -- i -- 7 14961-R 4604.6 j DAVIS, ROBERT S 15.0 N 65.0 W 12 I SWNE Irrigation -- --. I -- -- ! -- '- -- 14963-R 4643.8 -l-/ nNR_XNU- I- S.ON 65.0W 1 NENE Irrigation 118 -- 1 -- I i 18758- 4644.9 CARLISLE, 5.0 N 65.0 W' 2 NESW Domestic -- -- i -- 21090- 4644.9 DONALD T LAJAGA I ENGINEERING CO 5.0 N 65.0 W 2 I NWSW Domestic i i -- E -- i -- -- -- } -- ' DUNN, CLARENCE ' ! i 44659- 4599.2 i - E 5.0 N 64.0 W 7 SWSW Domestic -- -- -- -- ! -- -- GROSSNICKLE - , j 44660- 4625.5 j TRAVIS D & 5.0 N 64.0 W 18 NENW Domestic 40 1 7 36 -- -- -- I MICHELLE L - J - 81387- 4628.7 !REYNOLDS, JOHN 5.ON 65.0W 10 NWSE Domestic -- ) -- - -- -- --T 83516- 4615.0 - CONNELL I RICHARD CLAYTON 5.0 N 65.0 W 11 NWSE Domestic -- p I -- {i -- i -- V ) 102669- 4607.4 I MATHEWS, W C 5.0 N 65.0 W 12 NWSW Domestic 55 10 ' 55 -- - I HEMSTREET 128731- 4605.6 I WILLIAM E & i ROHLFEI 5.0 N 64.0 W 6 NWSE Domestic, Stock I E ! I I I HOSHI KO DENNIS _ 19163-MH 4631.2 I % NO FR RNG 5.0 N 65.0 W 13 SWSE Monitoring 30 I 15 25 18 -- -- WQPA 39901-MH 4616.1 ! ANACAPA LAND 5.0 N 64.0 W r 7 1 N WSE Monitoring 62 I 42 62 6 t I -- -- CO LLC i 45247-MH 4643.2 - y- I.- CERVI, MIKE 16.0 N65.0 W 36 SESE Monitoring 60 ' -- 160704- 4632:4 5.0 N 64.0 W 18 SWSW Domestic, Stock -- -- I -- i -- -4_,-,___ HOWARD CECIL & I - I SHIRLEY z I -- - I -- 251500- 4623.2 IJAIMES,BERTHAA 5.ON 64.0W 17 NWSW Domestic 100 I ---- 269260- 4633.1 L LW MILLER 5.0 N 65.0 W 1 NWSE Monitoring 60 j-- 269261- 4634.2 I LW MILLER 5.0 N 65.0 W - 1 , SWNE Monitoring 60 i -- -- -- I -- -- McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@mcgranewater.com Web: ttp://mmancgranewaterengineering.com • Mr. J.C. York July 3, 2019 Page 16 Permit Number I DEM Elev Contact Name (ft) Town- ship I Well I Pelf. Rng € Sec Qtr -Qtr' Use(s) Depth I Top I I Depth I i (ft) I (ft) Bot. Pert. Depth (ft) I Static Water Level (ft) , Sat. Thick. (ft) Yield (gpm) 269262- 4643.2 LW MILLER i 6.0 N 65.0 W 36 i SESE . Monitoring E 60 -__ _. _.._ W_._ 269263- 4639.8 I LW MILLER 1 6.0 N -I 65.0 W '' _ __ 36 I SESW t _ Monitoring I �_.__ 32 I 25 35 -- ___.DIAMOND _t I 65247-F I 4618.4 FEED_E_RS 15.0 N i 64.0 W ; 6 INWNWI Commercial I -- I -- I -- I -- -- 1 -- 65241-F , 4607.6 , € 5.0 N 164.0 W I 6 I SWNE I Commercial I -- I -- l -- ; -- -- 276391. FEEDERS i ( 1 4616.9 L MERIT, ENERGY 5.0 N -x- 65.0 W i 11 I SESW Monitoring 8 4 r 8 - 276392 276393- 4617.0 I_ MERIT, ENERGY = 5.0 N , 4616.9 I MERIT, ENERGY ' 5.0 N { 65.0 W4.., 11 ` SESW_ I Monitoring 8 4 t 8 0 65.0 W: 11—I SESW ? Monitoring I 8 r 4 I 8 1 - -- 276394- I 4617.6 E_MERIT, ENERGY 15:0 N 65.0 W ; 11 . SESW I Monitoring t 8 I 4 , 8 276395- I 4620.7 s MERIT, ENERGY 15.0 N 65.0 W, 11 0 SESW I Monitoring 8 1 4 i 8 I y ' r - -- 1 7UUnN T 279599 —1 4598.0 ri I 5.0 N -®P 64.0 W 7 SESE I Monitoring I 48 1 28 48 I 6 -- -- 279600 I 4601.2 I l 5.0 N fEkiRrIfE5 279601- , 4598.1 " 15.0 N 64.0 W i 7 I NWSE I Monitoring 65 ( 45 -I 64.0 W 7 1 SWNE I Monitoring -- 4 65 -- ( -- -- -- -- -- -- 283738-- l 4611.2 j ERO, RESOURCES 5.0 N 65.0 W I 11 1 NENW i Monitoring -- -- -- ' -- -- -- 283739 28374O- l 4611.7 I ERO, RESOURCES 15.0 N 4613.1 ° ERO, RESOURCES F SA N 65.0 W I 11 , NENW I Monitoring 1 -- I 65.0 W5 11 NENW I Monitoring Tj µ -- 1 _„�� _-� ' -- ___ _ 283741- I 4614.1 I ERO, RESOURCES 15 0 N 65.0 W 11 NENW Monitoring ' 283742- i 4613.0 , ERO, RESOURCES l 5.0 N 65.0 W 11 I NENWMonitoring -- I -- - -- 'CLARK JAMES R& 1 289696- i 4616.9 I : 5.0 N 1 , CYNTHIA K 1 Domestic, 65.0 W € 14 I SWNE I _` I , Stock I i 35 ; -- E € �_ -- _ VARRA I 293701- I 4621.8 I ; 5.0 N — - - 65.0 W I 10 SWNE I Monitoring v -- 4 I- 40 S 5 I 40 I - -- - -- -- COMPANIES 293702- 4618.4 I VARRA COMPANIES 5.0 N 65.0 W s 10 SWNE I Monitoring 37 1 5 37 f I -1 - 293703 v ' 4615.5 E VARRA 15.0 N 65.0 W ' 10 I NENE I Monitoring 37 5 37 I -- — -- i COMPANIES • ; R- 293704- 4617.3 I VARRA ` 5.0 N E COMPANIES -- 65.0 W _ 1 I 10 NWNE I I _ Monitoring 44 5 b 44 -- 1 -- -- 293705- E VARRA I 4610.4 i 5.0 N I COMPANIES ' 65.0 W —1-- 5 10 I NWNE I I Monitoring _ 40 5 I 40 ' - - r 4626.8 VARRA 5.0 N I COMPANIES 65.0 W 10 l SWNE I Monitoring A_w---_ 46 I 5 46 I -- -- -- 293706- _. _._. VARRA I---------{ 293707 4622.0 I l 5.0 N I COMPANIES I ff i VARRA 293708- 1 4620.2 1 5 0 N I 65 0 W ' 10 SWNE 1 65.0 W 10 SWNE I Monitoring 45 5 i �____ 45 I 1 __ t I 40 I -- -- -- I -- -- I + Monitoring 40 t 5 COMPANIES I I VARRA i 293709- I 4616.5 ' ; 5.0 N i I 65.0 W p 10 I SENE I Monitoring 36 6 36 { 1 I COMPANIES 4 '- _--_I 293710- I 4616.5 I VARRA 15.0 N 65.0 W 10 I SENE I Monitoring I 36 1 5 I 36 -- -- -- I COMPANIES f ( 4615.7 i COMPANIES 5.0 N r - 65.0 W 10 SENE i Monitoring I 36 5 I 1--- 36 l 293711- 293712- 4617.3 I VARRA 15.0 N I COMPANIES I p 65.0 W I Monitoring ( 46 i 5 46 . -- -- -- _ 293713- I 4615.0 I VARRA 15.0 N 6 COMPANIES I _ _ ____ 65.0 W [ 10 NENE t Monitoring 44 5 44 I I t -- -- -- _______t 557 WCB I 4648.1 I KIGHT L A 6.0 N 65.0 W ` 36 ' SWSW I Domestic i 38 j 29 ,__ 38 Y 21 -} 900-WCB _l I 4625.3 I ARMITAGE B A & 15.0 N 64.0 W 18 SENW ; Irrigation 61 j ]y --v`Y ETHEL Minimun 7 2 10 4.5 Maximum 165 53 119 190O Average 61 20 45 327 McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@mcgnewater.com Web: ttp://www.lncgranewaterengineering.com Mr. J.C. York July 3, 2019 Page 17 Table A2 - DPG Pit Exploration Borehole Data Well ID COSPN X — COSPE_Y Elev (ft_msl) Depth to Bedrock (ft) Bedrock Elev. (ft) Depth to Water (ft) Water Elev. (ft_ msl) Sat. Thickness (ft) MW -1 3246739 1397275 4607.50 105.0 4712.5 6.9 4601 98.1 MW -2 3247792 1397095 4604.82 102.0 4706.8 5.8 4599 96.2 MW -3 3245445 1396721 4603.55 98.0 4701.6 5.7 4598 92.3 MW -4 3247580 1396453 4599.50 75.0 4674.5 2.5 4597 72.5 MW -5 3245671 1396090 4604.64 60.0 4664.6 6.6 4598 53.4 MW -6 3246754 1396130 4607.08 80.0 4687.1 6.3 4601 73.7 MW -7 3248935 1395392 4610.66 57.0 4667.7 7.8 4603 49.2 MW -8 3247309 1395090 4608.93 86.0 4694.9 10.2 4599 75.8 MW -9 3245035 1394654 4603.72 83.0 4686.7 6.4 4597 76.6 Table A3 - DPG Pit Monitoring Well Levels (Spring, 2019) Won DiusliPlation Description East Side of Phase 1 North DPGMws Northeast Side of Phase 1. DI2G Mw -6 Northwest Side of Phase 2 Top of Casing El. (ft) 4602.39 4599.50 4607.94 4604.64 4610.32 4607.08 Ground EL(ft) Date Depth to Water [loci (ft) Depth to Water (TOG) (ft) Water B. (ft) 4596.70 Depth to Water [FOCI (ft) Depth to Water {TOG} (ft) Water El. (ft) 4597,84 Depth to Water [TOG] (ft) Depth to Water (TOG) (ft) Water El. (ft) 4600.40 April 19, 2019 May 8, 2019 May 29, 2019 June 13,2019 5.69 5.83 4.60 4.71 2.80 2.94 4596.56 4597.79 4597.68 10.10 10.38 6.80 7.08 5.78 5.99 4597.57 4598.86 4598.65 9.92 9.90 8.79 8.81 6.68 6.66 5.55 5.57 4600.42 4601.53 4601.51 1.71 1.82 9.08 9.29 Ammo Max. Change to Date 6.21 0.98 4597.18_. 129 6.41.E 4598.23 :,ci. 6.14 460097 11 Dresi9rration Description Top of Casing El. (ft) Ground Et.(ft) DPGMW1 DPG PRN.9 Southeast Side of Phase 3 4613.43 4610.66 South Side of Phase 3 and 4 4611.63 4608.93 Southeast Side of Phase 4 4606.71 4603.72 Date Depth to Water [TOG] (ft) Depth to Water (TOG) (ft) Water B. (ft) 4602.62 4602.51 Depth to Water [FOCI (ft) Depth to Water {TOG) (ft) Water El. (ft) Depth to Water [TOO] (ft) Depth to Water (TOG) (ft) Water EL (ft) 4597.00 April 19, 2019 May 8, 2019 May 29, 2019 June 13, 2019 10.81 10.92 10.04 10.04 40.45 8.04 8.15 7.27 7.27 4603.39 4603.39 4602.98 13.19 13.33 12.10 12.31 12.73 10.49 10.63 9.40 9.61 4598.44 4598.30 4599.53 4599.32 9.71 10.31 8.17 8.85 6.72 7.32 5.18 5.86 4596.40 4598.54 4597.86 41 Ave afe: 123 215 McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: detnus@mcglanewater.com Web: ttp://www.tncglnnewaterengineering.com Mr. J.C. York July 3, 2019 Page 18 Table A4 — Mass Balance — Steady State (no pit) MODEL INFLOW (cfs) MODEL OUTFLOW (cfs) IN -OUT Storage 0 Storage 0 0.00 Constant Head 18.94 Constant Head 4.10 14.84 River Leakage 5.17 River Leakage 20.01 -14.84 Total 24.11 Total 24.11 0.00 McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@mcgranewater.c:om Web: ttp://w‘sw.mcgranewaterengineering.com • Mr. J.C. York July 3, 2019 Page 19 FIGURES McGrane Water Engineering, LLC 1669 Apple Valley Rd. • Lyons, CO 80540 • Phone: (303) 917-1247 E -Mail: dennis@incgTanevvater.com Web: np://svww.incgranecvaterengineering.com 1 65W 1 64W rage zu I • z cD 24586 -MHO 223448 81387 81387-A 293706 39697-MH 6706 O 14869-R 32958 21090 30718 30719 18758 O 8743-R 283738 283739 81355 273740 Q 283741 283742 3739 93702 • 293713 93708 293712 9370a�of 293711 00293710 293709 27143-F 1412590 O 275685-A 243278 148328 6023-R Q 192441 122362- 4 450 - •\ Q 226-R -' 293701 4561 264562 7613C -A 222001-A''� 221852 285655 64677-F 208860 O 208899-A 13580 14245 42978 291552 34 190 -RD Q 11964-R 171640-A 11188-R Q 19090-M H 664-WCB Q 0574-WCB 7161 -R -R Q O Q 11347-F 41257-F 86129 86129-A MW -7 83280 O 6081 10266 83516 95100 156434 289696 289696-A 276391 276392 276393 276394 276395 O 307422 14962 -R -R 67520-F 14963-R '. 12187-R 45247-MH 269262 a t1 RFC, 52960-MHAP�''4.%'.Cn ?an . en • 53371-M H .r O58629-MH 145 -RD O 313449 302-R 304-R 280476 8187-A 11604-R 12985-R MW -9.0., 44659 39900-MH 39903-MH MW -8 .. 32613 O O 79602 13256-R O 14961-R 4183-F 279601 39902 MH 30883 Q f63 -M H / 161560 39901-MH 279603 45661-MH Q 27799600507-F0 242466 46535-DW 48186 MH O - 27959949904-MH O Q44660 :65242-F 65240 -F -R 65244-F 65243-F 8691 13255-R 37838 2591 O 2932 -F -R Q 268830 26980 (96415 -R -R 118194-A 8641-R 588-WCB Q 19163-MH 97830-A 8540-R(5)0 6416-R 20033 -R -R 11651 -R -R 68973-F I 292614 48559 Figure Al Study Area with Well Permits DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019, Hurr & Schneider (OF -93-124), JT Consulting, ESRI World Imagery O 11605-R 0900-WCB.;.. 11844-R Q 618-WCB 01361 -RR 11399-R 198176 250105 O x O 12017 -R -R 11611 -R -R O63180 -F 160704 82267 0276114 Q 251500 0 Map Legend rrl DPG Permit Boundary Model Extent DPG Monitoring Well* MW -1 * Permit/Well ID shown adjacent to well DWR Constructed Well Use* O Domestic O Irrigation O Stock O Commercial O Monitoring/Sampling O Municipal CI Other Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N ElepnantFish I 65W 1 64W ragezi r 4618 9 X50 4650 4640 4615 4625 X628 4 I_-________ ::_ ct *40011r 4615 4619 4617 4618 O Qg o. 4618 4633 4618 O 4615 4616O4613 4611 4605 461 4617 461 O O 4613 4.,624 ��,x� 84615 O 461 .b 4618 04611 4620 04618 4599 Qa 4620 r. Q 4605 v 460 4605 4593 46070 4607 4610 O 1 612 46 0 4607s4585 46150 9g615 4611 4623 460 4610 7. 46 4'i0 459 04598 4598 4 ©4595 4615 4599,: -= r Q s" 4617 O 04616 Figure A2 Geology and Water Table Elevations DPG Weld County, Colorado 4597 600 O 4600 469$ A 04602 4641 4635 4623 0 .. _ . 462 0 4610 4615 •02 O 4605 4617 4589 O4599 Q _ .. 4620 KI 04594 O 4600 4587. 4587 4594 4601 c: 0 O X14` 4592QQ 5984 4595 7 459?.98 0 4601 04585 4607 "' 4617 4608 O X4610 4610 4621 4613 O 4616 O 4 4593 4593 .4953900045 4590 O45 2 O 459 .,�00 4592 011 4590 600 4606 4613 0 O 4613 Qg 45 1 0 0.5 1 X34581 Mile Map Legend 4561 a Elevation @ River (ele shown adjacent to point) 4561 Well with Static Water 0 Elevation (elevation shown adjacent to well) 4561 DPG Monitoring Well (averaged elevation) d - I DPG Permit Model Water Table Ele. Contour (revised from H & S) (Contour Interval = 10 ft) Geologic Units (from Braddock and Cole, 1978) Qa - Alluvial Deposits Qg - Gravels and Alluvium KI - Laramie Formation Sources: CDSS Well Permit Database 061019, Hurr & Schneider (0E-93-124), JT Consulting, Braddock & Cole, 1978 Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N Elepna ntFish McGrane Water Engineering. LLC I 6W: ' Page 22 1 64W I 47 30; 141259 120). 264562 9151 148328 } 85 15; 243278 60 15j 22362-A (100) (15) 2057 �5 15� PIMP"f59a 168216-A Nd) (66) 4561.�ND 293701 40) '!3198-A 301) ( 12379:.-A � 4595 -R -R (ND) (1040) 571-WCB 1237 993 �350� 30; 24586-MH r 39697 -MN {27) =` 6706 46 ND) 86 {ND) (20) 293705 14869-R 293704 (40) ND) (ND) AND` "(ND) IJv A3739 293702 (37) ND) 293708 293707 INC 43;, 293712 712 293711 293710 (ND) (ND)� (ND) 7(293706 46) 293709 �(ND) t36 293703 {37) ND) 293713��"` DY) 27143-F (�p)\ \ (ND) 55 S15 81387-A 223443 4507-R A' 6023-R ND) 221852 285655 56 ((ND) �15� 76130-A (100) 646, 7-,F 76) (15) 190) 222001-A {15) x_78 -R 2,000 32958 30719 30i �30� 30718 18758 21090 81355 s78 3oj ,..-283? 8 2937 ' • A 28374 28374 283742 48748-MH 275685-A ( ,..... 226-R (ND) 7161 -R -R 78; (7 00 8743-R ND ND 27 20� L411V1 � 30675 11854 56099 {30) (ND) {15) 159) {15) 15107 27 A 20) 241101 6081 65� 15, 192441 19244183516 183783 (37 910 (15� 95 _(60) 15) 276391.276395 156434 (34) {15) 289696 (3 5) 208899-A SOW (60 208860 � (15 (401 83280 Z82 (3j 95100 -', , 50 289696-A 291552 141 1 Feet 97830-A (364,000 ND) n ` 86129 11347-F �20; 41257-F 250 86129-A (38 '900 88) () � (ND) 14245 13580 42978 � ) y) �� ND)ND)60 MW -6 I (8,AV D MW -7 (60) (ND) 45249-MH (6 0) 14963-R (118) (ND) 443-WCB (118 (1200 45250 -MN (60 (ND), 269261 (NDi 269260 (60) (ND) 222813 Num (65) MW -4 (ND)* MW -1 (110) (ND) 102669 �55) ND) 45663-M: 242466 46 • (15 { t4fc' w s r4eit 5i 68973-F 88-WCB (N S; 1,5bo, 8641-R (73) ND) Figure A3 Well Depth and Yield in Pit Vicinity DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019, Hurr & Schneider (0E-93-124), JT Consulting, ESRI World Imagery MW -2 (105) jND) MW -8 (90) (ND) MW -3 O (105) (ND) 76222-F (650 118187-A {40) 13256;,R0 --- 1-R 30883 18691 9628 ND) (50 307422 60) (ND) "t_ 292614 56 15� f R 2591. ^^ �ND�) :`.26883 in � 20) 118194-A 6416-R 59) (ND) 33 ■ MW -9 (87) (ND) 4.13 45661 -MHz 13255-R (72) (ND) vex r. 41010 2'x'32 -F -R 61) 26980 {ND) { 6120) 6415 -R -R (24 ( 0 19163 -MN �30) ND) 65247-F 14962 67520-F {1200 (ND) A 145 -RD -R 335 -RD -R (165) ��6)89 {1206} 302-R N� (D 304.12 46535 -DIN 1500) 280476 {111) 500) 313449 (49) (ND) 80233-F 1 (76) 4183-F 65) (1150) - ' lrs 161560 37838 }3501 ; 11645•R s (ND) 11611 -R -R (1050) 900-WCB (61(ND� 1361-R (ND) 250105 58 15 Map Legend d EfiJ DPG Permit Boundary Model Extent DPG Monitoring Well* A DWR Well with No Well Depth/Well Yield (Labeled with permit #I only) Well Yield (gpm)* /1 4-15 16 - 100 101-500 501 - 1000 1001 -1900 A No Well Yield *Points labeled with: Well Permit # (well depth - ft) (yield - gpm) Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N EIeha ntFish assysishr C ran ater Engineering, LL.' I 65W 4544 4562 4590O4O 4571 O O4561 �O 4564 4564 O rie 4571 4579 4583 4583 O 45834 #gab 4588O 45 71 4583 Figure A4 Bedrock Elevation DPG Weld County, Colorado 4581 4546 O Sources: CDSS Well Permit Database 061019, Hurr & Schneider (0E-93-124), JT Consulting, ESRI World Imagery 4588 O ' 4583 O I ----- 4470 4486 O 4559 0 O456 4579 4576 O O O4572 4572 64W 4568 (1 4562 ra,c GJ Map Legend 61 U Well with Bedrock Elevation (elevation shown adjacent to well) 4561 DPG Monitoring Well (elevation shown adjacent to well) DPG Permit Boundary L _j Model Extent �\..� Bedrock Elevation Contour* (Interval = 10 ft) Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N *Revised from Hurr & Schneider l EtephantFish Engineering, LL 65W (70.4) p(48.5) _,� - (25)O O (41.2) 0081 (49.4)0 49.5 p (37.7) ( ) (31.2)L (26.2) (27.7) (37.5) 0 (27.5) \(29-5) O 'o (44.5) (42.2) (29.6) Figure AS Well Saturated Thickness DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019, Hurr & Schneider (0E-93-124), JT Cor sulting, ESRI World Imagery 0(29.8) (32.6) O O(44) 1i. 6 (24.2) o� O O(94.8) O39) O (35) rage �/-f 64W (101) 693) x(53.9) O(68.5) O (46.4) o (65.8) Map Legend 32.5 O DWR Well with Saturated Thickness Data* 42.1 DPG Monitoring Well* DPG Permit Boundary r I Model Extent Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N 1 • z LID awl �IepnantFish t i Mile 1 *Saturated thickness calculated by subtracting revised bedrock from modeled water table. Saturated thickness in parentheses adjacent to well (ft) Engineering) LLC 65W Figure A6 Aquifer Hydraulic Conductivity DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019, SPDSS Raster Database, JT Consulting, ESRI World Imagery Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N 1 ,ElepnantFish *The SPDSS k grid raster was resampled to 200 ft resolution to match the model cell size. 64W rage z,3 Hydraulic Conductivity (ft/day)* < 250 250 - 300 300 - 350 350 - 400 400 - 450 450-500 500 - 546 Engineering, LLB' I • z 65W Figure A7 DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019,Hurr & Schneider (OF -93-124), JT Consulting, ESRI World Imagery Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N rage zo *Calculated by subtracting revised (from H&S) top of bedrock elevation from revised (from H&S) water table elevation and multiplying it by the SPDSS K raster grid (resampled to 200 ft). 1 Transmissivity Contour from Hurr & Schneider Contour interval varies; values given in thousands of gallons per day per foot I Map Legend 64W DPG Permit Boundary Transmissivity* (7000s gpd/ft) 0 - 50 50 - 100 100 - 200 200 - 374 Engineering, LLC rage z 64W Imo,• 4625 4628 d 4616 4611O 460 O 65W 4633 O 4.18 O 22 4627 O 462 4 6O O O 4623 4616 4.1104613 4603 O O460 4618 4605 4593 4617 O 4614607 O O 4607 4610 4613 4624 4609 O 4615d) v 4615O 4611 O4612 611 4608 O \ 4612 49% arle4 X4610 4616 Figure A8 Model Water Table Elevation Comparison DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019, Hurr & Schneider (0E-93-124), JT Consulting, ESRI World Imagery 4575 O O 460' 4613 O 4616 4630 O 460 4610 O 4613 °4 613 4600 4591 Map Legend 4561 0 Elevation at River* 4561 O Well with Static Water Ele.* 4561 53) DPG Monitoring Well * * Water table elevation as recorded on boring log or monitoring well database shown adjacent to well. C DPG Permit Boundary r-- Model Extent N. Modeled Water Table Elevation Contour (Contour Interval = 10 ft) Water Table Elevation Contour Contour Interval = 10 ft (revised from Hurr & Schneider) Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N E!eha ntFish Engineering, LLC 65W rage zo 64W 1 30718 21090 O 18758 32958 30719 81355 O 2 192441 5O 276391 276393 6081 O 241101 O O83516, 95100 O O156434 83280. O10266 45663-MH Figure A9 Modeled Change in Water Levels in Pit Vicinity DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019, Hurr & Schneider (0E-93-124), JT Consulting, ESRI World Imagery 269261 269260 • O45249-MH 222813 0 30883` 14961-R 13256-R 76222-F O j :..:_ 302-R 304-RO 45661-M H O 46535-DW 61560 O 1869 O9628 4183-F O Map Legend DPG Permit Boundary Proposed Slurry Wall '`_ Change in Water Level Contour (interval = 0.25 ft) DWR Constructed Well Use O Domestic O Irrigation O Stock O Commercial O Monitoring/Sampling O Municipal O Other Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N I COOK JAKE & DOROTHY 6081 Feet 2,000 Figure A10 65W ROADIFER, CATHERINE 242≥66 O Uncertainty Analysis - Estimated Change in Water Levels in Pit Vicinity DPG Weld County, Colorado Sources: CDSS Well Permit Database 061019, Hurr & Schneider (0E-93-124), JT Consulting, ESRI World Imagery LW MILLER TRANSPORTATION 269260 O WELD COU 118187f O Map Legend DPG Permit Boundary Proposed Slurry Wall 's., Change in Water Level Contour (interval = 0.5 ft) Well contact name and permit number shown adjacent to well Date: June 27, 2019 Datum/Projection: NAD83/UTM Zone 13N rage zv 64W L_ 1 WELD COUNTY. 76222-F CENTRAL CO WATER HALL IRWIN CONSERVATION DIST CORP 46535-DW045661-MH DWR Constructed Well Use* O Domestic O Irrigation O Stock O Commercial O Monitoring/Sampling O Municipal O Other ,,., Engineering, LL Hello