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Home My WebLink About20240819.tiffT Consulting, Inc. J& g� April 8, 2024 Mr. Rob Zuber Environmental Protection Specialist State of Colorado Division of Reclamation, Mining, and Safety Physical Address: 1313 Sherman Street, Room 215 Denver, CO 80203 Mailing Address: Division of Reclamation, Mining and Safety, Room 215 1001 East 62nd Avenue Denver, CO 80216 1 PAGE OF DOCUMENT INCLUDED IN PAPER FILE. REMAINDER RETAINED ELECTRONICALLY IN TYLER RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025, 112c Permit Application, Preliminary Adequacy Review Dear Mr. Zuber, WW Clyde & Co. (\ MN Clyde) has received the Division's Preliminary Adequacy Review letter dated September 29, 2023, Groundwater Adequacy Review dated October 23, 2023, Preliminary Adequacy Review Memo for Geotechnical Exhibit dated November 14, 2023, and Adequacy Review Related To Name Change letter dated November 21, 2023. Below are the comments and the corresponding responses that we have provided to address the comments. Comments 1) The Division received comments from three State agencies. The letters from these agencies are included as enclosures with this adequacy review letter. Please review the letters and provide responses accordingly. a. History Colorado b. The Division of Water Resources c. Colorado Parks and Wildlife. Response: a. History Colorado — See attached e-mail correspondence with History Colorado. b. Division of Water Resources - WW Clyde commits to pursuing a well permit prior to mining; a well permit will be applied for immediately after approval of the DRMS permit for the gravel pit. WW Clyde commits to pursuing a Substitute Supply Plan in concert with the well permit and this will occur prior to mining and immediately after approval of the DRMS permit. WW Clyde commits to conducting a field inspection of the site and documenting locations of all wells within 600 feet of the permit area. This field inspection will be completed prior to mining and immediately after approval of the DRMS permit. If there are wells within 600 feet the well owners will be contacted to obtain a waiver of objection. If a waiver of objection cannot be obtained then a hearing will be requested from WW Clyde to the Division of Water Resources and the State Engineer. 4.6ii 41 /51 z1 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 t_e,:-pL(f2I MDA-)Ko I !JA JMIC), TWCcjiIcxI "DPI Dk1,I5B) u[c1 12.4 2024-0819 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -2- c. Colorado Parks and Wildlife - See attached response from ERC for the CPW comments. 1.6 Public Notice 2) Pursuant to Rule 1.6.2(e), please submit proof of the notice to all owners of record of surface and mineral rights of the affected land and the owners of record of all land surface within 200 feet of the boundary of the affected land including all easement holders located on the affected land and within 200 feet of the boundary of the affected land. Proof of notice may be return receipts of a Certified Mailing or by proof of personal service. Response: Public notice letters to all owners of record within 200 feet of the permit boundary were mailed via certified mail. Copies of the letters, certified mail receipts, and certified mail return receipts were provided to the DRMS (e -mailed to Mr. Rob Zuber on October 16, 2023). 6.4 Specific Exhibit Requirements - Regular 112 Operations The following adequacy items must be addressed by the Applicant to satisfy the "Mineral Rules and Regulations of the Mined Land Reclamation Board for the Extraction of Construction Materials." For items without specific rule citations, the requirement is based on the general intent of the rules, especially Rule 3.1 (Reclamation Performance Standards) and Rule 6.4. 6.4.3 Exhibit C - Pre -Mining and Mining Plan Maps of Affected Land 3) The South Platte River must be shown and labeled on maps C-1 and C-2, per Rule 6.4.3(b). Response: Acknowledged. The maps C-1 and C-2 have been revised to show the South Platte River labels. 6.4.4 Exhibit D - Mining Plan 4) Please discuss if processing will entail washing of the product and if a pond or ponds will be included in the process area. If so, add a discussion to the text of Exhibit D and to Map C-2. Response: Discussion has been added to the text of Exhibit D (See highlighted text in the attached updated mining plan) for the location of sediment ponds where the water is recaptured from washing product. The location is also shown on the revised map C-2. 5) The Mining Plan should state that topsoil should be stripped and salvaged from areas where overburden material will be stockpiled (Rule 3.1.9(1)). Response: The mining plan has been updated to include this statement. See highlighted text in the attached updated mining plan. 6) Exhibit D needs to include a discussion of stabilization of topsoil stockpiles (Rule 3.1.9(3)). Response: Discussion has been added to the text of Exhibit D (See highlighted text in the attached updated mining plan) for the stabilization of topsoil stockpiles. id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -3- 7) Exhibit D should include a discussion of the structures that will be constructed for the mining operation, including buildings and roads. The discussion must include dimensions and general construction methods. (For example, will foundations include rebar reinforcement?) Response: Discussion has been added to the text of Exhibit D (See highlighted text in the attached updated mining plan) for the structures constructed for the mining operation, including buildings and roads. 8) This exhibit needs to include an appendix that includes a detailed slurry wall design report. Response: We discussed with Mr. Michael Cunningham and a detailed slurry wall design will be completed for the pit, however at this point in the permitting process one is not necessary as the gravel investigation borings provide enough information to establish a bedrock surface and square footage of slurry wall can be calculated from the preliminary profiles to establish quantities necessary for establishing bond calculations for the slurry wall construction cost. 6.4.5 Exhibit E - Reclamation Plan 9) The text states that reclamation will be concurrent with mining. Exhibit E should provide a commitment to a maximum un-reclaimed disturbance area and length of un- reclaimed highwall. Response: The text is correct because the mining slope is a 2:1 slope and not a high wall. The reclaimed slope is a 4.5:1 slope where the excess overburden will be used to construct the reclamation slope. WW Clyde commits to a maximum un- reclaimed slope of 3,000 lineal feet (See highlighted text in the attached updated Exhibit E reclamation plan). 10) The text states that auger holes will not be left on the property. Please clarify if there are/were auger holes and add a discussion on how these holes will be filled or were filled in the past (Rule 3.1.5(6)). Response: The text is correct as the auger holes for the gravel investigation were backfilled with native gravel and soil cuttings from the drilling. The auger holes that were not backfilled were the four monitor wells that were constructed and permitted as permanent monitoring wells to monitor groundwater at the north, east, west, and south sides of the permit boundary (See highlighted text in the attached updated Exhibit E reclamation plan). 11) The text should state that no structural fill shall be imported from outside the permit area, or the Reclamation Plan must include all of the requirements of Rule 3.1.5(9). Response: No structural fill shall be imported from outside the permit area. The text has been updated (See highlighted text in the attached updated Exhibit E id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -4- reclamation plan). 12) The text should state that topsoil will be re -handled as little as possible and that a Technical Revision will be submitted before topsoil stockpiles are relocated (per Rule 3.1.9(4)). Response: The text has been updated to state that topsoil will be re -handled as little as possible and that a Technical Revision will be submitted prior to re -locating topsoil stockpiles (See highlighted text in the attached updated Exhibit E reclamation plan). 13) The text should state that topsoil will be placed in a way to prevent erosion of this resource (per Rule 3.1.9(5)) and a discussion added regarding the practices to stabilize slopes. One option is to roughen slopes prior to placement of topsoil. a. The text for revegetation needs to include details for seed bed preparation and the time of seeding (Rule 6.4.5(2)(f)). Response: The text has been updated to state that topsoil will be placed in a way to prevent erosion of the resource and discussion for stabilizing slopes. The text for revegetation has also been updated to include details for seed bed preparation and timing of seeding (See highlighted text in the attached updated Exhibit E reclamation plan). 14) The weed control paragraph should reference a more detailed plan in Exhibit J. Response: The text has been updated to reference a more detailed plan in Exhibit J (See highlighted text in the attached updated Exhibit E reclamation plan). 6.4.7 Exhibit G — Water Information 15) The text must include a discussion regarding the use of water for processing gravel. If no products will be washed onsite, this should be stated in Exhibit G. Response: The text has been updated to include water for processing (i.e. wash water for wash plant to process concrete rock and sand). (See highlighted text in the attached updated Exhibit G) 16) The McGrane report and associated conclusions will be reviewed by a groundwater hydrologist with the Division, and an additional adequacy letter will be sent in October or November 2023. Response: Acknowledged (See responses specific to the ground water modeling comments later in this response letter). 17) To ensure that the Bernhardt Pit does not impact the hydrologic balance of the river, the application needs to include a water quality monitoring plan, specifically for the alluvium. The groundwater monitoring plan should be developed in accordance with Rule 3.1.7(7)(b) and should include a Quality Assurance Project Plan (QAPP) for the collection of groundwater samples. The plan should provide mitigation steps if there is an exceedance at a groundwater or surface water monitoring location. Potential impacts to quality and/or quantity of nearby domestic wells should also be addressed. A copy of id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -5- the Division's "Groundwater Monitoring and Protection Technical Bulletin" has been included as an enclosure to this letter for your reference. Response: A water quality monitoring plan has been included the text of Exhibit G. (See highlighted text in the attached updated Exhibit G). 18) For protection of the riverbank, perform one of the following: 1. Revise the extraction and reclamation plans to include a 400 -foot setback from the top of the riverbanks to the top of the pit side slope of the planned pit. This size of setback is based on guidance from the Mile High Flood District (MHFD). The document, "Technical Review Guidelines for Gravel Mining and Water Storage Activities Within or Adjacent to 100 -year Floodplains," is available upon request. A smaller setback will be considered by the Division if rationale from this guideline (or similar reference) is given. 2. Design inlet and outlet structures (aka, side -channel spillways) that will allow floodwaters to pass through the site with considerably less risk of destroying the banks (aka, riverside berms). The design should include any necessary analysis to illustrate that the structures will prevent the loss of riverside berms during a 100 -year flood. 3. Perform an analysis to illustrate that riverside berm failure is unlikely during a 100 - year flood event. This analysis should be done using standard methodology, such as a two-dimensional HEC-RAS model. Response: The mining and reclamation plans have been updated to provide a 400 - foot setback from the top of the river bank to the pit side slope/mining limit. (See the attached updated maps for the mining plan and reclamation plan). 6.4.8 Exhibit H — Wildlife Information 19) The applicant must address the comments of the Colorado Parks and Wildlife Division (CPW), which are enclosed with this review letter. Each of the comments must be directly addressed in your response letter, and, as applicable, comments must also be addressed by revising Exhibit H. Where necessary, add commitments for future studies or other actions. Note that CPW recommends a setback from the river of 500 feet. While this would be preferable in the context of wildlife protection, the Division believes that the 400 -foot setback described in Exhibit G, above, is sufficient. Please consider the 400 -foot option to protect wildlife as well as protect the riverbanks from erosion. Response: The mining and reclamation plans have been updated to provide a 400 - foot setback from the top of the river bank to the pit side slope/mining limit. (See the attached updated maps for the mining plan and reclamation plan). The responses to CPW are included in the attached response from ERC and these have also been included with the updated Exhibit H. (See highlighted text in updated Exhibit H) 20) In the body of Exhibit H, the applicant should discuss the presence of (or lack of) critical habitat for such things as elk calving or other activities that require special consideration (per Rule 3.1.8(1)). Response: The body of the text in Exhibit H has been revised to include discussion provided by ERC. Responses to CPW are included in the attached response from ERC and these have also been included with the updated Exhibit H. (See highlighted id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -6- text in updated Exhibit H) 21) In the body of Exhibit H, the applicant should discuss seasonal use of the permit area. For example, is the permit area used for winter habitat by deer or other species? Also, will noise from the operation impact any wildlife? These items are required per Rule 6.4.8(1). Response: The body of the text in Exhibit H has been revised to include discussion provided by ERC. Responses to CPW are included in the attached response from ERC and these have also been included with the updated Exhibit H. (See highlighted text in updated Exhibit H) 6.4.10 Exhibit J - Vegetation Information 22) Per Rule 3.1.10(6), a Weed Management Plan should be included in this exhibit, and it should discuss the list of State of Colorado noxious weeds and should state that List A species will be eradicated, and List B Species will be controlled. The plan should also describe the efforts that will be made to control List C species, including field bindweed, a focus in Weld County. Response: The body of the text in Exhibit J has been revised to include discussion on the weed management plan. (See highlighted text in updated Exhibit J) 6.4.19 Exhibit S - Permanent Man-made Structures 23) The Division requires the Applicant to demonstrate that they attempted to obtain notarized structure agreements with all owners of the structures within 200 feet of the affected area of the proposed mine site, pursuant to Rule 6.4.19. This attempt must be made prior to the Division's consideration of a stability analysis. Please provide this demonstration; this can be in the form of certified mailing receipts or similar documentation. Response: The structure agreements that have been signed are attached. The certified mail receipts are attached for the agreements that were delivered via certified mail. The e -mails are attached for the agreements that were delivered via e-mail. 6.5 Geotechnical Stability Exhibit DRMS is reviewing the geotechnical analysis and our comments will be sent in October or November 2023. Response: Acknowledged (See responses specific to the slope stability exhibit comments later in this response letter). Groundwater Review Memo 1) The proposed operation has the potential to negatively affect the prevailing hydrologic balance, both the quantity and quality of groundwater, of the affected land and of the surrounding area. The applicant is required to develop a groundwater monitoring and sampling and analysis plan (SAP). This SAP will establish, through five quarters of monitoring, what the baseline conditions are at the site to enable the Division to assess the impacts of mining on the hydrologic balance. A copy of the Division's Groundwater id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -7- Monitoring: Sampling and Analysis Plan Guidance for Construction Materials and Hard Rock Sites was provided to the applicant, in the Division's adequacy letter dated September 29, 2023, and should be referenced in developing a sampling and analysis plan. Please provide a sampling and analysis plan for the proposed operation. Response: The sampling plan has been updated and is included in Exhibit G (See highlighted text in the updated Exhibit G). 2) Please commit to providing the Division with a copy of the Substitute Water Supply Plan once it is approved by the Division of Water Resources. Response: WW Clyde commits to providing the Division with a copy of the approved Substitute Water Supply Plan by the Division of Water Resources. 3) Please update the groundwater elevation table found at the end of Exhibit G with groundwater level measurements through October 2023. Additionally, the groundwater elevations calculated for JT MW -3 have been incorrectly calculated and need to be updated. Response: The groundwater elevation table has been updated and the elevations for JT MW -3 have been corrected as the formula was referencing the wrong cell. The measurements included are through the month of January 2024. 4) The Pre -Mining, Mining, and Reclamation Plan maps need to be updated to show the monitoring well locations associated with the proposed permit. Response: The Pre -Mining, Mining, and Reclamation Plan maps have been updated to show the monitoring well locations. (See attached updated maps) 5) Please provide the locations of each monitoring well (MW -1 through MW -4) in decimal degrees. Response: The Pre -Mining, Mining, and Reclamation Plan maps have been updated to show the monitoring well locations with the decimal degrees and these are also included in Exhibit G in the monitor well measurements table. (See attached updated maps and updated Exhibit G) 6) In review of Figure 10A along with the predicted mounding of -2.5 feet on the upstream side of the proposed permit boundary it appears the predicted mounding combine with high groundwater levels seen in July 2023 will bring groundwater elevations to within 0.5 feet of ground surface at MW -3. Additionally, extrapolating the potential mounding groundwater elevations during high groundwater levels away from the permit boundary in the southwestern area it appears that the mounding will result in groundwater being exposed at the surface. Please update the groundwater model using the highest groundwater elevations to evaluate the potential of groundwater being exposed at the surface along the boundary of the permit. It should be noted that groundwater elevations approaching the surface can cause offsite land user issues due to saturated ground conditions. When updating the groundwater model figures please label the individual well location ID's. id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -8- Response: The figures have been updated for the groundwater model. (See attached updated figures) 7) Please provide a groundwater model analysis to demonstrate how effective installing the proposed underdrain will be to mitigate the predicted groundwater mounding on the upstream side of the proposed slurry wall. Response: The analysis has been updated and figures have been updated for the proposed drain in the groundwater model. The Exhibit G text has been updated to discuss the design/construction drawings being provided for the proposed drain when the design/construction drawings for the slurry wall are provided to the DRMS prior to construction and installation of the drain and slurry wall (See attached updated figures). 8) A discussion about plugging and abandoning the monitoring wells needs to be included in the Reclamation Plan Exhibit E. Response: A discussion was provided in Exhibit E for how the investigation holes were filled in with cuttings and how the monitor wells have been permitted as permanent monitor wells and will remain in place through the mining and after reclamation is complete for the water storage owner to continue to utilize for groundwater monitoring for their own use. 9) The Reclamation Cost Estimate, Exhibit L, needs to be updated to account for plugging and abandoning the monitoring wells. Response: See answer to number 8). The monitor wells were permitted as permanent monitor wells and will remain in place for use for the water storage owner after reclamation is completed so there is no need to include in the reclamation cost estimate. Geotechnical Slope Stability Exhibit Review Memo 1) Soil Properties — On p. 1 of the Slope Stability Report, under "Geotechnical Data" it states, "estimated soil strength parameters based on the information from the boring and monitor well logs and other stability analyses that have been performed on gravel mining operations along the Front Range." When comparing the soil properties in Table 1 with standard references (e.g., Houk and Bray 1977), the selected properties differ significantly in some cases. Please provide rationale for the selected soil properties consistent with the boring logs in Appendix D. Response: The strength parameters have been updated and these are based on properties at other front range locations in Weld County where Cesare/CMT Technical services provided these values in their slurry wall design investigation reports and stability analysis. (See the updated Table 1). 2) Slurry Wall Properties — Please provide rationale for the slurry wall soil parameters listed in Table 1. Response: The strength parameters are based on properties at other front range id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -9- locations in Weld County on the slurry wall backfill that was placed. Typically the range on the backfill unit weight is anywhere from 95 lbs per cubic foot to 120 lbs per cubic foot depending on the number of fines passing the number 200 sieve. We used the lower range for the dry density at 100 lbs per cubic foot and 110 lbs per cubic foot for the saturated density. (These were all samples of soil/bentonite backfill and test results of samples that were tested for permeability). 3) Bedrock Properties — The Galena models use "weathered bedrock" and "stable bedrock". Whereas the borehole logs reference either sandstone or claystone. Please provide rationale for the different bedrock properties and explain whether there is any correlation between the selected bedrock properties and whether the bedrock encountered was sandstone or claystone. Response: The strength parameters are based on properties at other front range locations in Weld County. The borelogs are correct and we have updated the models with the sandstone or claystone bedrock properties for the different locations to match the section. The weathered sandstone and claystone bedrock properties as well as the stable sandstone and claystone bedrock properties are updated in the table in the report and the analysis sheets in the report appendices. 4) Reclamation Phreatic Surface — The phreatic surface shown on the Galena graphic for Case SS -5, Reclamation shows a slight drop across the slurry wall and a near horizontal phreatic surface in the sand and gravel layer on the left side of the slurry wall, then sloping down to the toe of the backfill zone of clay. If the slurry wall is effective, the groundwater elevation on either side should be independent of one another. Please explain what post reclamation condition this phreatic surface represents. Response: The phreatic surface shown for Case SS -5 is for the scenario where the reclaimed reservoir was filled with water and then dewatered where water is trapped between the slurry wall and the backfilled reclaimed clay slope. Adequacy Review Related to Name Change 1) Please update all references in your exhibits (including the maps in Exhibits C and F) to reflect the name W.W. Clyde & Co. Response: All references in the exhibits and maps have been updated to reflect the name change from 1HC Scott to W.W. Clyde & Co. WW Clyde appreciates your consideration of this adequacy review response. Please feel free to contact me with any questions or comments. Sincerely, r , J.C. York, P.E. J&T Consulting, Inc. ui 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review April 8, 2024 -10- Attachments: 1. History Colorado Emails and Letters 2. Letter Report Update from SWCA for History Colorado 3. ERC Response for CPW Comments 4. Updated Exhibit C-1 and C-2 Maps 5. Updated Exhibit D 6. Updated Exhibit E 7. Updated Exhibit F Maps 8. Updated Exhibit G 9. Groundwater Monitor Well Readings 10. Groundwater Quality Testing Readings 11. McGrane Groundwater Model Update and Responses 12. Updated Exhibit H 13. Updated Exhibit J 14. Signed Structure Agreements 15. Structure Agreements Sent by Email 16. Structure Agreements Sent by Certified Mail 17. Structure Agreements Hand Delivered 18. Updated Slope Stability Report id 305 Denver Avenue — Suite D • Fort Lupton CO 80621 • Ph: 303-857-6222 History Colorado Robert 11 D:s tot 'f Reclasininon.„Nr=LE and Safely ]=]= Sherma2Shnet. oonr=; Deo.e . Colorado suo:C_ Re. Bernhard: Sand_ and Gram'. PC. F1e No. Der 11 Zuber: i sank sron =o::roar corespoadence dated serteueaer ] ', 2023 and re lved.r-4 oi.n office on Septan he: 1;- 2O23 ceque coxmaac for the refereoc e i permit app -::0000 co -sate da. Based on the saerrh area md;cated m tea yaps thac su o .Ee rec e_ tad oo Septeuabee JS. ._.21- a =-ears Of our database iodinates C. utee and Q rlr.e^3 were ! x:red witha or 3d scent to the womb area If ray size. disnic7. ba•!drng. 5012 ']Ce: ob'eCt: or a1.r..e CTEO Was Identified ',1Rtlll3 the search area: a List of sites :s atr=ched to Stu Lete_. No Nsxone] or atote R.eOsrer listed or ooauaa,edp:oaer_es sere rdeatFei withris the proposedpe-ravc area. Please ooze_ ss mosu of Colorado has oot been iin-an:orei for curers: rwc- real our -1=-s coaarn uacosp-ece oromanao.CarequEntiti there ?sthe cossrbW^'that as yetunidantriedculryareoscesFrio_-withinthe prrx¢zd Perim: arseado ent area. The rem e>Lvenr ender C RS 2.t -K. par_ 13 apply and must be fol lowed if boon 11 rams ao are disci. ed dwwg k uc,d Lis iag Plea re note cwt our co -..invents should no: be interpreted as roacocreace iLder the National. Hisco-c Pre a ,ad�n Act or any other sovuonuienlot aw or ropulacoo. 1: is the reponoi rtv of ors federal areer;o rn'.vb..edto oaeet the [Cg rre:lent= of lectoo G6 as set forth 3i' CPR Pan 8• v -fled .protection of lLatcr:r }ropertiea'This Ludes aoc only reasonable aid good fast idea &aaoa effors cf a 1: historic aropertiea located a=t'1_7' t the area ofpota r:al effects; but del ern nma c -hater the nuleralsiag X11 have 23 effect upon sun.properaes The Stale -Ls:onc Pre=eroadon I)ffice: Nat -...e iraen::ae trbes. represenniO— es oflccal zoterrluen-s, and app'icams for fsO_Bra: _-ernists Ere enti:led to cocsultarr.-e roles m rtes process. ou have m' quesaans or _ r e asybe of Luther ars:stance: please coati:- i=o]ylicKee- are Cultural 7 erourCe Infarthatan section _ 06 C oo paauc a S^eCl£]ir ai (P031 $66-16'0 or bo.i :.L' Sin:E ]ir. Patrick A. Eid man DigitaI1ySignedbyPat]ick...Eldmar. C Date. 2023.09.26 12:10:37 -C6'0O Dawn Dirrtn:e Slate i tortr Preeeraato] Office_ JC York From: Mckee-Huth - HC, Holly <holly.mckee@state.co.us> Sent: Friday, November 17, 2023 12:18 PM To: JC York Cc: Holly Norton - HC Subject: Bernhardt Sand and Gravel Pit, File No. M-2023-025 Hello Mr. York: I have just sent our letter regarding the referenced subject matter to Ms. Medeiros at SWCA and I cc'd you on the correspondence. Our State Archaeologist and Deputy SHPO, Dr. Holly Norton, would also like to extend an invitation to you to further discuss our comments and the importance of the archaeological resources in the surrounding area. I have cc'd her on this email as an introduction. We would like to thank you again for getting this information to us, and we look forward to working with you in the future. Sincerely, Holly McKee -Huth Holly McKee -Huth GIS Manager I Section 106 and Cultural Resource Information Specialist, Archaeology Pronouns: she/her/hers History Colorado I Office of Archaeology and Historic Preservation 303/866-4670 I holly.mckee@state.co.us History Colorado Center 11200 Broadway I Denver, Colorado 80203 I HistoryColorado.orq Under the Colorado Open Records Act (CORA), all messages sent by or to me on this state-owned e-mail account may be subject to public disclosure. We acknowledge that the land currently known as Colorado has been the traditional homelands of Indigenous peoples since time immemorial. We are grateful to work in partnership with the 48 sovereign nations who continue to call this land home. Together, we plan exhibits; collect, preserve, and interpret artifacts; do archaeological work; and create educational programs to share the history of Colorado. 1 295 lnrerlockee Boulevard, Suite 300 Broomfield, Colorado 80021 Tel 303.487.1 183 .:Yrco.Ccm ENVIRONMENTAL CONSULTANTS 2/36 Sound Science. Creative Solutions' To: TECHNICAL MEMORANDUM J. C. York J -T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, Colorado 80621 From: Ryan Cline, M.A., SWCA Cultural Resources Specialist Melanie Medeiros, M.A., RPA, SWCA Cultural Resources Principal Investigator Date: February 19, 2024 Re: Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / SWCA Project No. 78991 / HC Project No. 83746 J -T Consulting, Inc. contracted SWCA Environmental Consultants (SWCA) to conduct a cultural resource review and reconnaissance survey to support the proposed Bernhardt Gravel Mining Pit project. The project consists of the new construction of a gravel mining pit on an approximately 132 -acre lot (Parcel No. 105924000023, hereafter referred to as the project area), southeast of Milliken, Colorado, on agricultural land owned by IHC Scott, now W.W. Clyde and Co. (Figures 1 and 2). Development of the proposed gravel mining pit will be subject to permitting through both Weld County and the State of Colorado. In February and March 2023, SWCA archaeologists Mindy Burkitt and Nick Simpson completed a file search, literature review, and reconnaissance survey of the project area to identify cultural resources and potential impacts the project may have on those resources. SWCA also excavated three shovel tests to evaluate the subsurface depositional setting and assess the project area for the potential to contain buried cultural material. The original survey identified three new cultural resources: one segment of a historic levee system (5WL9625.1), one precontact isolated find (IF) (5WL9626), and one historic IF (5WL9627), all of which are recommended not eligible for the National Register of Historic Places (NRHP). The reconnaissance survey found that most of the project area has been subject to agricultural practices for at least the last 40 years, with plowing extending into the gravelly alluvium effectively removing stable topsoil, and that no to few soil horizons remain within the cultivated field could support intact subsurface archaeological materials. However, the corners of the project area outside the agricultural field and disturbance areas exhibit clear alluvial bedding and have the potential to retain cultural horizons. On November 17, 2023, the Colorado State Historic Preservation Office (SHPO) requested that SWCA conduct a Class III cultural resource survey and shovel testing specifically focusing on the northeast and southwest corners of the project area, and north of the road that transects the northwest portion of the project area, areas that have not been subject to agriculture. The Colorado SHPO requested this additional effort to assess potentially undisturbed portions of the project area for the presence of archaeologically and potentially sensitive cultural areas due to a lack of previous intensive survey of the project area and the proximity of the nearby Dent Site (5WL269), an NRHP-eligible mamoth kill site that like the project area, is located on the T3 terrace of the South Platte River. This technical memorandum provides a description of the project area and land use, a description of field methods, a summary of the results of the additional survey, and recommendations as they relate to the proposed project. Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 x20 oo. 4762 ' r . �� % �..l n ',. ; o -•_ o 'I NI-- V1 �l \\� a� i/, l rJ. ' r •eo . .•,_ , 742 ° j 47.3 // 18 1tt - - �• ------ iO r- ' - ' l �� _ = �~� '' Iii c -ms s ��' = ti•-..- 1 / �f, ` / f/ // 24 C y / W i- HUTVA.4 `yyI 7 Ce i- I / ,J' Ifr. is r `�-- welt ' 4746 19 .. _- � '_Y_ „,_2"------ r I, / f .ea r / yS yy£ it 01TCM :: >55 ..s• r ya 6� f 3Q .. . _ = W.W. CLYDE AND CO. PROPERTY MINING Project Location Map Project Area Township/Range Boundary �] Section Boundary Weld County. CO USG'S 7-:i Otrort anger-: Milliken. CO (1970) T4N R67W- Section 24 NAD 11TM lone 13N 40.3006'N 104.8345'W Figure 1. Project location. 2 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 W.W. CLYDE AND CO. PROPERTY PAINING Project Location Map ■ Negative Shovel Test Surveyed Areas Project Area Township/Range Boundary E-1 Section Boundary Weld County. CO VSCS 7.:i Ouadrangle: Milliken. CO r1WO) T4N R67W. Section 24 NAD 133fi3lJIM Zone 13N 40.3006.N 104.8345'W Figure 2. Project area, showing additional shovel tests excavated to examine deposition in potentially undisturbed portions of the project area. 3 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 PROJECT AREA AND LAND USE The project area is located 2 miles southeast of Milliken, Weld County, Colorado, in the northeast quadrant of Section 24, Township 4 North, Range 67 West, as depicted on the 1970 U.S. Geological Survey (USGS) Milliken, Colorado, 7.5 -minute quadrangle (see Figures 1 and 2). The majority of the parcel is a roughly circular, tilled and fallow agricultural field on the T3 terrace of the South Platte River. An earthen levee system (5WL9625.1) surrounds the eastern, southern, and half of the western edges of the agricultural field and a prominent, dissected, northeast -trending terrace or ridge system is northwest of the project area. Additional fallow agricultural fields and reclaimed well pads are north of the project area. The areas identified by the SHPO for additional survey and shovel testing are the uncultivated portions northeast, northwest, and southwest of the agricultural field (see Figure 2). The southwest corner of the project area is characterized by a graded lot that is currently being used to store a variety of modern industrial and farming materials; this area, particularly the southwest corner of the project area, is heavily disturbed and has clearly been impacted by modern mechanical excavations, tree removal, and soil transportation (Figure 3). The northeast corner of the project area is predominantly undisturbed and is close to both the river and the earthen levee. The northwest corner of the site between the unpaved access road and the project boundary is moderately disturbed, most likely from activities relating to the construction and maintenance of the unpaved access road and the nearby Dent Branch of the Union Pacific Railroad (Figure 4). Numerous pipelines cross through and border the project area. Vegetation is entirely invasive and noxious weeds, allowing for between 0 and 90 percent bare ground visibility, averaging 70 percent. Figure 3. Example of the southwest corner of the project area showing the disturbed nature of the soil; view to the west. 4 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 Figure 4. Overview of the northwest corner of the project area, between unpaved access road and railroad; view to the northeast. One of the highest terraces in the Platte River system is termed T3 by geomorphologists because it is the third terrace above the modern level of the river. This terrace is known as the Kersey Terrace on the south side of the river and as the Pleasant Valley Terrace on the north side. This terrace is notable for the large amount of glacial gravels mixed with the alluvial sediments deposited during the Pleistocene Pinedale Monarch Glaciation, about 12,000 years before present (McFaul et al. 1994). According to Holliday (1987) and McFaul et al. (1994), among others, the surface of the T3 is characterized by gravel ridges and channels, a result of braided channels of the South Platte River as it deposited glacial outwash materials. Much of this landscape has been flattened by historical agricultural activities. Of note, the Kersey Terrace has yielded several of the earliest sites in Weld County, including the Frazier Site (Agate Basin) (5WL268), the Klein site (Clovis) (5WL1368), the Jurgens Site (Cody complex) (5WL53), and the Powars site (Folsom) (5WL1369), all of which are within 0.75 mile of the proposed project area. Soils in the project area are predominantly (99 percent) Aquolls and Aquents, gravelly substratum. This map unit is common on swales, floodplains, and streams; consists of loam overlying gravelly sand; and is poorly drained, deep, and derived from recent alluvium (Natural Resources Conservation Service 2023). 5 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / SWCA Project No. 78991 / HC Project No. 83746 Figure 5. Overview of the northeast corner of the project area; view to the south from the levee. METHODS As requested by the SHPO in the letter dated November 17, 2023, on January 14, 2024, SWCA archaeologists Nick Simpson and Ryan Cline conducted an intensive survey in the northeast, northwest, and southwestern corners of the project area and excavated six additional shovel tests in these areas to evaluate the subsurface depositional setting and assess the potential for intact buried cultural material. The intensive survey followed the methods outlined in the Colorado Office of Archaeology and Historic Preservation (OAHP) guidelines for conducting cultural resource inventories in Colorado (Colorado OAHP 2007). Field personnel inspected the survey area using a series of parallel, 20 -meter (m) -wide transects across the survey area; however, survey transects were adjusted, when necessary, to ensure full coverage of the survey area. Archaeologists examined the ground surface for artifacts, features, and other prehistoric or historic material evidence, such as charcoal -stained sediments, as well as aboveground features and structures. Special attention was paid to animal burrows to assess the potential for subsurface archaeological deposits. If cultural resources had been encountered, they would have been recorded and assessed for the NRHP following the methods outlined in the Colorado Office of Archaeology and Historic Preservation (OAHP) guidelines (OAHP n.d., 2007; Horn and Norton 2021). RESULTS Intensive Survey On January 14, 2024, SWCA completed an intensive survey of the northeast, northwest, and southwest corners of the project area. The survey found that the southwest corner of the project area was heavily disturbed from modern mechanical excavations, tree removal, and soil transportation (see Figure 3). 6 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 Similarly, the northwest corner of the project area is moderately disturbed from transportation -related activities (see Figure 4). The northeast corner of the project area is predominantly undisturbed (see Figure 5). Intensive survey of these areas did not identify any additional cultural resources on the ground surface. Shovel Tests In March 2023, three shovel tests were excavated across the project area as part of the reconnaissance survey to assess the deposition and the potential for buried cultural material (Table 4; Figure 6). Shovel Test (ST) 1 was placed in the northeast corner of the project area, outside the tilled agricultural field and near the river and levee. ST2 was placed in the northwestern portion of the project area, near the center of newly recorded precontact IF 5WL9626; more specifically, the test was placed upslope of a metate, near the transition from T3 to T4. ST3 was placed in the south-central portion of the project area, in sediment representative of the majority of the matrix observed across the project area. During the January 2024 survey, ST4 and ST5 were placed in the northeast corner of the project area, north of ST1, because of the area's relatively undisturbed nature and proximity to the South Platte River, to confirm the results of ST1. ST4 and ST5 both contain a deep layer of laminated soils, indicating frequent flooding events, likely before the construction of the historic levee. ST6 was placed in the southwest corner of the project area, outside the tilled agricultural field in an area that appears undisturbed in aerial imagery. However, survey confirmed that the southwest corner of the project area is heavily disturbed with evidence of modern mechanical excavations, tree removal, and the transport and deposition of outside soils. ST6 was placed here in an area with the least amount of disturbance. ST7, ST8, and ST9 were placed in the far northwestern corner of the project area between the unpaved access road and the railroad. The reason for multiple shovel tests in this area is its relatively close proximity to IF 5WL9626. The survey and associated shovel tests confirm the field has been affected by plowing into the gravelly alluvium, effectively removing stable topsoil. No to few soil horizons remain within the cultivated field that could support intact subsurface archaeological materials. The corners of the project area outside the agricultural field and disturbance areas exhibit clear alluvial bedding and have the potential to retain cultural horizons, although none have been identified through shovel testing. 7 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 Table 4. Shovel Test Results ST No. Depth Using Shovel (cmbs) Soil Profile Artifacts 1 0-86 0-9 cmbs: semicompact brown fine sandy loam with rootlets and poorly sorted subrounded gravels 9-15 cmbs: semicompact brown -yellow sand with small subrounded gravels 15-24 cmbs: semicompact brown sandy clay loam mottled with 20% pale yellow sandy loam; small subrounded gravels throughout 24-29 cmbs: loose pale yellow sand with small subrounded gravels 29-55 cmbs: loose pale brown sandy loam with small subrounded gravels 55-86 cmbs: loose, coarse -grained, pale yellow riverbed sand with ample subrounded gravels None 2 0-55 0-32 cmbs: semicompact pale brown sandy loam with few small subrounded gravels 32-45 cmbs: compact pale yellow -brown silty loam with 20% subrounded to subangular gravels 45-55 cmbs: compact pale gray silty loam with 20% small, subrounded gravels and calcium carbonates 0-13 cmbs: 1 quartzite FAR less than 5 cm (in plow zone) 3 0-40 0-22 cmbs: semicompact dark brown sandy loam with 30% poorly sorted, subrounded gravels 22-40 cmbs: very compact dark gray -brown clay loam with 20% poorly sorted, subrounded gravels and some calcium carbonate lacing on peds None 4 0-97 0-35 cmbs: gray -brown sandy loam with 10% fine roots 35-60 cmbs: dark gray -brown sandy clay loam laminated with 2- to 3 -cm - thick pale yellow -brown silt loam 60-97 cmbs: pale yellow -brown riverbed sand with numerous small subrounded gravels None 5 0-101 0-31 cmbs: gray -brown sandy loam with 10% fine roots 31-61 cmbs: dark gray -brown sandy clay loam laminated with 2- to 3 -cm - thick pale yellow -brown silt loam 61-101 cmbs: pale yellow -brown riverbed sand with numerous small subrounded gravels None 6 0-60 0-60 cmbs: pale yellow -brown riverbed sand with numerous small subrounded gravels None 7 0-100 0-100 cmbs: brown sandy loam with 5% subrounded gravels None 8 0-100 0-100 cmbs: brown sandy loam with 5% subrounded gravels None 9 0-100 0-100 cmbs: brown sandy loam with 5% subrounded gravels, 50% medium to large rounded cobbles in top 50 cm. None Note: cmbs = centimeters below surface, FAR = fire -altered rock. 8 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 x20 on. 4762 o. -. .o° i 742 17:7r `y r - , �• L ^` \. "'t i O `x X713' 1 8� 1' i; I I 7" \/c� i f , i• 11 1JJ" .i 4^ 47tO S J J � STZ_— • ��J_ n'_ i - b� _�'11 l! � 'ST5 ST / I • rr" V • r• I -ms s / r / i 1 welt J4746 (''U ' _ f / ' 7 J N- CG l_ ��"`�' .�I J� l � 24 / W /.).Z ,zr r 19 Z Tr a : ...../ :;: ::•k, o•- I ef, r 2 --, }l - ----- ;// r .'ar - R yo MuniA I OITCM -.9S • i . . .I C . W --- .... --___— .•26'. 3Q.,. . W.W. CLYDE AND CO. PROPERTY MINING Resource Location Map Project Area Township/Range Boundary �] Section Boundary U Negative Shovel Test Weld County. CO uSCS 7-:i Otrodranglr-: Milliken. CO CI 970) T4N R.670/. Section 24 NAD 1.063 11TM 7 ne 13N 40.3006.N 14.8345 1A, Figure 6. Shovel test locations. 9 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / SWCA Project No. 78991 / HC Project No. 83746 CONCLUSIONS AND RECOMMENDATIONS Given the level of higher energy flooding and modern agricultural use occurring within the project area, confirmed by the 2023 reconnaissance survey and shovel tests as well as the 2024 intensive survey and shovel tests, either shallow or no native sediments that could retain precontact or early historic archaeological sites remain in the agricultural portion of the project area. Therefore, no additional archaeological assessment is recommended in the cultivated field. The northeastern portion of the project area, outside the cultivated field, shows evidence of frequent flooding events and riverbed deposits, and does not have potential for intact subsurface archaeological deposits. Furthermore, intensive survey and shovel testing of the northwestern portion of the project area, north of the unpaved access road, indicate that no buried cultural materials are present. The southwestern corner of the project area was found to be heavily disturbed and has no potential for the presence of intact archaeological materials. Therefore, SWCA recommends no further work regarding archaeological investigations for this project. 10 Addendum to Cultural Resource Support for the IHC Scott Proposed Bernhardt Gravel Mining Pit in Weld County, Colorado / S WCA Project No. 78991 / HC Project No. 83746 REFERENCES CITED Holliday, Vance T. 1987 Geoarchaeology and Late Quaternary Geomorphology of the Middle South Platte River, Northeastern Colorado. Geoarchaeology: An International Journal 2(4):317-329. McFaul, Michael, Karen Lynn Traugh, Grant D. Smith, William Doering, and Christian J. Zier 1994 Geoarchaeologic Analysis of South Platte River Terraces: Kersey, Colorado. Geoarchaeology: An International Journal 9(5):345-374. Natural Resources Conservation Service 2023 Web Soil Survey. Soil Survey Geographic (SSURGO) database. Available at: http://websoilsurvey.nrcs.usda.gov/. Accessed March 13, 2023. Colorado Office of Archaeology and Historic Preservation (OAHP) n.d. Where to Draw the Line: The Truth about Linears as We Know It. Available at: https: //www.historycolorado.org/site s/default/files/media/document/2017/ Forms_Linears.pdf. Accessed March 2023. 2007 Colorado Cultural Resource Survey Manual. Available at: https://www.historycolorado.org/sites/default/files/media/document/2017/ 1527.pdf. Accessed March 2023. Horn, Jonathon C., and Holly K. Norton 2021 Walking the Line: Guidance for Identification, Evaluation, and Field Recordation of Historic Linear Sites in Colorado. History Colorado and Alpine Archaeological Consultants, LLC. On file, Office of Archaeology and Historic Preservation, Denver. 11 History Colorado Melanie Medeiros, M.A., RPA Senior Cultural Resource Team Lead — Principle Investigator SWCA Environmental Consultants 295 Interlocken Boulevard, Suite 300 Broomfield, Colorado 80021 Re: Addendum to Cultural Resources Support for the IHC Scott Proposed Bernhardt Gravel Minning Pit in Weld County, Colorado/SWCA Project No. 78991 (HC#83746) Dear Ms. Medeiros: We received your correspondence dated February 22, 2024 on February 28, 2024 continuing consultation with our office on the subject action pursuant to the Colorado State Register Act — Colorado Revised Statute (CRS) 24-80.1 et. seq. Our office understands that there is no federal involvement for this project and Section 106 of the National Historic Preservation Act does not apply. We also understand that the construction of the new gravel mining pit, on land owned by IHC Scott, is subject to state permitting through the Division of Reclamation, Mining and Safety. As such, continued consultation with our office under the State Register Act has been requested. Per our office's request, SWCA Environmental Consultants conducted additional testing and survey northeast and southwest corners of the project area that appeared to be undisturbed. Based on the additional information provided, we still concur that site 5WL.9625.1, a segment of a levee in Weld County, and isolates 5WL.9626 and 5WL.9627, are not eligible for listing to the State Register of Historic Properties. In addition, we have determined that the proposed action will result in no effect to properties of historical significance that are included or nominated for inclusion to the Colorado State or National Registers of Historic Places. Please note that the requirements under CRS 24-80 part 13 apply and must be followed if human remains are discovered during ground disturbing activities. In addition, our comments should not be interpreted as concurrence under the National Historic Preservation Act or any other federal law or regulation. If you have any questions or if we may be of further assistance, please contact Holly McKee -Huth, Cultural Resource Information/Section 106 Compliance Specialist at (303) 866-4670 or holly.mckee@state.co.us. Sincerely, Dawn DiPrince State Historic Preservation Officer co El Opl cod Mamma Comodafflutrak ILL 2820 Wilderness Place, Suite A'" Boulder, CO 80301'" (303) 679-4820 December 1, 2023 Prepared by: Ecological Resource Consultants, LLC David J. Blauch, Senior Ecologist RE: Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review Response to 6.4.8 Exhibit H Wildlife Information Colorado Parks and Wildlife Comments This information provides specific response to comments provided by DRMS (September 29, 2023 ) in regard to the project specified above and specific to Section 6.4.8. Exhibit H Wildlife Information. Ecological Resource Consultants (ERC) previously prepared for the Property a Screening Report for Federal -State Listed Threatened and Endangered Species and General Wildlife for the Bernhardt Site, February 3, 2023 (ERC 2023). ERC 2023 was included as part of Exhibit H in the Application. DRMS Comment 19 specifies the applicant must address the comments provided by Colorado Parks and Wildlife (CPW) (Email dated September 21, 2023). The following provides a summary of the comment (numbered and italicized) and a bullet item response. 1. Construction Timing -Presence of prairie dogs and burrowing owls related to seasonal restriction. • ERC 2023 did not identify any prairie dogs or burrowing owl habitat within the Permit Area, therefore no burrowing owl survey is required and operations will not be restricted by seasonal closures. 2. Construction Timing -raptor nests and migratory birds. • ERC 2023 did not identify any raptor nests (active or inactive) within CPW recommend buffers from the Permit Area. A documented destroyed eagle nest was confirmed and is not considered active. Therefore, the Permit Area is not subject to CPW recommended raptor buffers and timing limitation. Active non -raptor active migratory bird nests will not be disturbed. 3. Construction Timing -Mule Deer. • Refer to number 10 below. 4. Fencing. • No new fencing is proposed as part of the project. Existing fencing will remain. Any future new fencing will consider CPW recommended guidelines where appropriate. 5. Noxious Weeds and Native Reseeding. • A weed management plan will be developed and provided as part of Application Exhibit J. • Reclamation seeding will incorporate native species as part of Exhibit F2. A ERC Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review Response to 6.4.8 Exhibit H Wildlife Information Colorado Parks and Wildlife Comments 6. Tree Replacement • The Permit Area does not contain trees/shrubs that will be disturbed. Therefore, no replacement compensation is required or proposed. 7. Wildlife Escape Ramps • During open pit operations side slopes will be initially cut to a maximum slope of 2:1 and reclaimed to 4.5:1. In addition, operations will always maintain a minimum of one equipment access ramp typically no steeper than 5:1. These measures will provide adequate escape routes for any wildlife entering the pit. 8. Retention Pond -islands and shorelines for wildlife improvement. • The proposed post -mining use is not intended as wildlife habitat, but rather defined as water storage. The shoreline perimeter does incorporate some level of variability. Creation of islands within the water surface area is not considered appropriate for this project. 9. Aquatic Species. • Standard stormwater BMPs will be employed and routinely inspected/maintained in accordance with permits to protect water quality in the South Platte River. • Plans will be revised to maintain a 400' no disturbance buffer from the ordinary high water mark of the South Platte River. 400' has been considered adequate for this project and per DRMS comments. 10. Mule Deer Severe Winter Range. • Per CPW recommendations, no initial (first year of construction and vegetation removal) ground disturbance will occur between December 1 to April 30. • Year -around operations will commence after the initial year. • A 400' riparian corridor (400' from the ordinary high water mark of the South Platte River) will be maintained to preserve migrations corridor along the south Platte River. 2 A ERC Bernhardt Sand and Gravel Pit, File No. M-2023-025 112c Permit Application, Preliminary Adequacy Review Response to 6.4.8 Exhibit H Wildlife Information Colorado Parks and Wildlife Comments DRMS Comment 20 and 21 requests discussion, in the body of Exhibit H of critical habitat that requires special consideration (per Rule 3.1.8(1)) and winter habitat use by wildlife species as well as potential wildlife disruptions (per Rule 6.4.8(1). • ERC 2023 provided a detailed evaluation of potential critical wildlife habitat and use within the Permit Area. The Permit Area was determined to be comprised of 100% ruderal grassland and disturbed lands which is generally considered low -value wildlife habitat. No federal or state listed threatened and endangered species/habitat were identified. Following the preparation of ERC 2023, CPW issued ('March 2023) new wildlife Species Activity Mapping (polygons) that depict the Permit Area within Mule Deer High Priority Habitat (HPH). This CPW polygon encompasses more than 955 square miles ('611,000 acres) acres along the South Platte and Big Thompson Rivers (refer to Figure 1). The Permit Area represents less than 0.02 % of this entire HPH polygon. In order to minimize potential disturbances to the HPH, the project will implement CPW recommendations addressed in Item 10 above. • No other critical habitat or seasonal wildlife use has been identified within the Permit Area. • It is not anticipated that operations (increased traffic, noise, light) will have a significant effect on wildlife in the area. • Refer to ERC 2023 for further explanation. Figure 1. CPW High Priority Habitat (Purple Shade) in Relation to the Property (Red Outline) 3 EXHIBIT C Pre-Mining/Mining Plan Maps See attached maps. J&[ Consulting, lnc, id I WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application lE OE / // / ,/ , D C N N 1/4 // cp i �— 0L OE a / i MW -1 ; / / LAT: N40.303936 �'' / / LONG: W104.834394 / yCE %r' --OE j / 4 734/ //3 / / / / / //473 / i/ S / / • 1 / PDC ENERGY, INC. OIL/GAS WELL "JOHNNY 1" PLUGGED AND ABANDONED UNION PACIFIC RAILROAD RAIL LINES CURETON/GILCREST MIDSTREAM OIL/GAS LINE (DISCONNECTED) MW -3 LAT: N40.301151 LONG: W104.838891 W.W. CLYDE/HIDDEN PLATTE RANCH FENCE PDC ENERGY, INC. OIL/GAS WELL "JENNIFER 1" PLUGGED AND ABANDONED CURETON/GILCREST MIDSTREAM // OIL/GAS LINE (DISCONNECTED)/ / W.W. CLYDE DIRT ROAD / 4 723 / ;1 I I PUBLIC SERVICE COMPA POWER POLES/LINES / A 225' (Rec. No. 1537418 & 1539251) OE XCEL ENERGY OIL/GAS LINE / / / / / / OE G 7 _ csbE OE -- G-- \-\\N‘\ I' CHEVRON/ ♦ ` /// I NOBLE MIDSTREAM ♦ `� OIL/GAS LINE PDC ENERGY, INC. OIL/GAS WELL "KRISTIN 1" PLUGGED AND ABANDONED W.W. CLYDE ELECTRIC (ABANDONED) c/ / / / / / / PDC ENERGY, INC. OIL/GAS WELL / "BERNHARDT 24C" PLUGGED AND ABANDONED DCP MIDSTREAM OIL/GAS LINE TO BE RELOCATED OUTSIDE OF MINING AREA CURETON/GILCREST MIDSTREAM OIL/GAS LINE (ABANDONED) CHEVRON/ NOBLE MIDSTREAM OIL/GAS LINE DCP MIDSTREAM OIL/GAS LINE MW -2 LAT: N40.301374 LONG: W104.830132 CURETON/GILCREST MIDSTREAM OIL/GAS LINE CURETON/GILCREST MIDSTREAM OIL/GAS LINE (ABANDONED) PDC ENERGY, INC. OIL/GAS WELL "SARAH 1" PLUGGED AND ABANDONED 400FT (MIN.) SETBACK FROM RIVER W.W. CLYDE/HIDDEN FENCE 4725 W.W. CLYDE WATER PUMPS MW -4 LAT: N40.297684 LONG: W104.834826 PLATTE NCH DCP MIDS KEAM OIL/GAS INE // "/ C B EDGE OF 1Q` RIVER Q� OJ LEGEND: 5280 OE 71) G EXISTING CONTOURS PROPERTY LINE EXISTING FENCE EXISTING ROADS EXISTING OVERHEAD ELECTRIC EXISTING UNDERGROUND ELECTRIC EXISTING POWER POLE EXISTING OIL/GAS LINE EXISTING RIGHT-OF-WAY A PROPERTY OWNERS WITHIN 200 FEET MAP ID NAME/ADDRESS ASSESSORS ID NO. A PUBLIC SERVICE COMPANY OF COLORADO 105924000019 TAX SERVICE DEPARTMENT PO BOX 1979 DENVER, CO 80201-1979 B HALFLIGHT LAND & MINERALS, LLC 4420 SUMAC LANE LITTLETON, CO 80123-2743 C HIDDEN PLATTE RANCH, LLC PO BOX 331 MILLIKEN, CO 80543-0331 D CHERYL KASTEN KAREN CURRIER CARLENE STROH 511 N SHOLDT DRIVE PLATTEVILLE, CO 80651 -7583 VEGETATION: 105729100002 105924000039 105924000036 ALL AREAS WITHIN THE PERMIT BOUNDARY ARE CURRENTLY AGRICULTURAL CROP AND PASTURE LAND. NOTE: W.W. CLYDE & CO. IS THE SURFACE AND SUBSURFACE OWNER WITHIN THE PERMIT AREA. SECTION LINE EXISTING 100 YR FLOODPLAIN EXISTING 100 YR FLOODWAY PERMIT BOUNDARY MINING LIMIT SLURRY WALL STOCKPILE AREA PROPERTY OWNER MAP ID • C' Dmt 305 Denver Avenue - Suite D N c0 E co N O O9..' U Lr`i; co c O M 0 Q J o_ O u_ F. Bernhardt Sand And Grave c O) C N U X w W.W. Clyde & Co. REVISIONS 0 .Q 0 a, O O a) nz O 0 z J&T Consulting, Inc. Job # 22036 Date 11.27.23 Drawn By Designed By Checked By TPY TPY JCY File JT-IHCS Bernhardt Mining.dwg 200 100 0 200 400 600 SCALE IN FEET Scale As Shown Sheet: 1 Of: 2 OE� (1E - OE I iI II I I / `)-OE a 7.. • MW -3 LAT: N40.301151 LONG: W104.838891 1/4 ��.�� ..�! ' • - - _ — I!� / / ;I I l; III MW -1 LAT: N40.303936 LONG: W104.834394 E CE`f— 1 -- --mud --mm 7- •••\4-1 ,,/ I . ii //, 30 FT WIDE ACCESS ROAD 50 FT WIDE AESS, SCALE, TARPI ROAD CLEARWATER POND FOR RECYCLE WATER TO WASH PLANT SEDIMENT POND FOR WASH WATER FROM PLANT SCALE HOUSE AND SCALE PROCESSING AND PRODUCT STOCKPILES 4725 / / / / .> // / lip 4723 / / / / OE OE -mot OE / / G f / / OE G _ a DIRECTION OF MINING / 400FT (MIN.) SETBACK FROM RIVER DIRECTION OF MINING MW -4 LAT: N40.297684 LONG: W104.834826 PERMIT AREA = 111.01 AC MINING AREA = 98.24 AC 225' (Rec. No. 1537418 & 1539251) OFFSITE ACCESS ROAD / Q csbE OE -- G-- DIRECTION OF MINING MW -2 LAT: N40.301374 LONG: W104.830132 DEWATERING TRENCH ' /i //k/ • ,/9//// N 4719 \ EDGE !</ OF , RIVER (</N - ,,,v.. OJ LEGEND: 5280 OE E G EDGE OF RIVER PERMIT BOUNDARY EXISTING GROUND EXISTING CONTOURS PROPERTY LINE EXISTING FENCE EXISTING ROADS EXISTING OVERHEAD ELECTRIC EXISTING UNDERGROUND ELECTRIC EXISTING POWER POLE EXISTING OIL/GAS LINE EXISTING RIGHT-OF-WAY VARIES 400FT (MIN.) 15' A SECTION LINE EXISTING 100 YR FLOODPLAIN EXISTING 100 YR FLOODWAY PERMIT BOUNDARY MINING LIMIT SLURRY WALL STOCKPILE AREA PROPERTY OWNER MAP ID TS/OB SLURRY WALL 2 SAND AND GRAVEL - 4' BEDROCK TYPICAL MINING SECTION N.T.S. 5' F DEWATERING TRENCH 013 305 Denver Avenue - Suite D (71 co up 0 F. Bernhardt Sand And Grave Exhibit C2 - Mining Plan Map W.W. Clyde & Co. REVISIONS 0 co 0 J&T Consulting, Inc. Job # 22036 Date 11.27.23 Drawn By Designed By Checked By TPY TPY JCY File JT-IHCS Bernhardt Mining.dwg 200 100 200 400 600 SCALE IN FEET Scale As Shown Sheet: 2 Of: EXHIBIT D Mining Plan Mining Limits WW Clyde proposes to mine in the land located in the parcel of land situated in the northeast 1/4 of Section 24, Township 4 North, Range 67 West of the 6th Principal Meridian, in Weld County, Colorado. The proposed mining site is located within the Town of Milliken. CR 46 is north of the property and an access road from the property connects to CR 46 near the intersection of CR 46 and CR 25. The South Platte River is adjacent to the property and approximately 880 feet south of the site on the south side of the permit boundary and 140 feet from the east side of the permit boundary. The dominant land use surrounding the property is agricultural use and industrial use. An aggregate processing plant will be located in Phase 1. These areas will contain stockpiles, portable equipment, storage bins, and silos as necessary to support the plant operations. Mining will start from the northeast corner of the mining limit then moving south approximately to one third of the property then west, then moving south to another third of the property back to the east, then moving south to the final third of the property to the west to complete mining and reclamation. All local, State, and Federal rules and regulations will be followed for the storage and handling of any petroleum products. The permit boundary will encompass approximately 111.01 acres which will all be affected acreage, and approximately 98.24 acres being mined. The remaining area will consist of access roads and disturbed land. The following table depicts the different affected acreage: Affected Acreage Mining Plan Area (acres) Mined Area 98.24 Access Roads 2.36 Disturbed Land 10.41 TOTAL 111.01 Various setbacks from adjacent roads, adjacent structures, and oil and gas infrastructure will be maintained as mining occurs. 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. The abandoned wells would be cutoff after mining has reached the bedrock surface or the reclaimed slope surface where a new cap and any additional concrete for the existing plug would be needed. Petroleum Development Corporation (PDC) is the leaseholder and operator of the existing abandoned wells. Discussions with PDC have indicated they would cut down the existing casings as mining occurs. We have also worked with McCarty Engineering, LLC to provide this service at other mining permit locations for other operators. If PDC does not want to perform this work then McCarty Engineering, LLC would be contacted to do it. They are !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application licensed and bonded to obtain approvals from the COGCC to do these types of re -plug services on abandoned oil and gas wells. Products Sand and gravel will be the primary product produced from the Bernhardt Sand and Gravel Pit. The principal intended use for the sand and gravel is for road base and construction aggregates. Subsurface drilling and testing have verified that the Bernhardt Sand and Gravel Pit property contains a significant commercial deposit of sand and gravel. The depth of clay, interbedded sandy clays and clayey to silty sands at the surface range from 1 to 8 feet. The thickness of the aggregate material ranges from 4 to 37 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. Mining will not expose groundwater prior to the slurry wall being constructed around the perimeter of Phase 1. 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 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 and discharged into recharge areas where overflow will reach a ditch that flows to the South Platte River. The equipment and facilities may include, but are not limited to the following: Scaling Equipment A scale house and scale will be used to weigh trucks and product leaving the pit. The dimensions of the scale house are 40' x 12' and the scale will be 70' by 10'. The scale house will be founded on typical trailer type jacks and tiedowns on top of concrete pads with minimal rebar to provide reinforcement. The scale will also be founded on concrete pads with reinforcement where load cells are located for the scale. These foundations would be removed once the pit is fully mined. Processing Equipment Screens, wash plant, crusher, conveyors, stackers, and other miscellaneous processing equipment. All processing equipment will be mobile and temporary without fixed foundations. Washing will occur at the wash plant and excess water from the washing will be recycled to the wash water ponds within the processing area, there will be a sedimentation pond that will receive the excess water first and then and overflow from the sedimentation pond to the clear water pond for re -using the water and pumping back to the wash plant. Earth Moving Equipment Dozers, loaders, scrapers, excavators, and compactors will be used for mining and earth moving operations. !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application Haul Roads and Access Roads Haul roads will be graded and constructed using the existing pit run where needed outside the processing area in order to move material from the mine using haul trucks, loaders, or scrapers. These roads will be mined and removed as the mining is completed. Access roads to the processing plant will be constructed with aggregates made at the site where the entrance to the permit boundary is located to the scale house and through the scaling area until the access reaches the stockpile locations. The roads around the stockpiles will be constructed from the existing pit run similar to the haul roads. 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. Topsoil will be stripped and salvaged from areas where overburden material will be stockpiled. 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 the slope reclamation and also the production of road base. During mining the mining face for Phase 1 will have a 2H:1V slope to bedrock or the bottom of the future reclaimed reservoir and the reclamation slope will be constructed using the excess overburden to a 4.5H:1V slope. 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 failures 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. Topsoil will be stripped and salvaged from areas where overburden material will be stockpiled. The volume of topsoil for all the mining phases is approximately 13,000 cubic yards. The depth of the topsoil is approximately six 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 as Phase 1 is mined. Mining will start from the northeast corner then moving south approximately to one third of the property then west, then moving south to another third of !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application the property back to the east, then moving south to the final third of the property to the west to complete mining and reclamation. The height of the topsoil stockpile will be approximately 15 feet to 20 feet. Mine Phasing WW Clyde anticipates mining and reclaiming the Bernhardt Sand and Gravel Pit in 1 phase, progressing through this phase as shown on the Mining Plan Map. The overall time required to complete the mining and reclamation is estimated to be 11 years based on an average rate of 650,000 tons per year. The initial production is expected to be 300,00 tons per year with the maximum production expected to be 1,000,000 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. Phase 1 is 98.24 acres and the estimated time for mining Phase 1 is approximately 11 years. The mining will progress beginning at the outer edge of the phase where material will be moved toward the interior of the phase such that the mining slope can be established. The mining slope will be established for the entire perimeter of the phase in 3 to 6 feet intervals. Dewatering Dewatering trenches will be placed along the perimeter of Phase 1. The dewatering trench around the perimeter of the phase being mined will be placed at the toe of the mining slope. As the phase is mined deeper the dewatering trench will be lowered and moved laterally along the mining slope toward the center of that phase. A slurry wall is anticipated to be installed around the perimeter of Phase 1 prior to exposing groundwater and mining will continue to commence and it is expected minimal dewatering will be required after the slurry wall is installed due to the slurry wall cutting off groundwater infiltration into the pit. WW Clyde 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. J&[ Consulting, 1nc, id I WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application EXHIBIT E Reclamation Plan A lined water storage reservoir will be the final reclaimed use for the Bernhardt Sand and Gravel Pit. Portions of mining area will be reclaimed as "native" areas, which will be re -seeded with native vegetation. The majority of the mining areas will be reclaimed as a water storage reservoir. 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 92.35 Access Roads 3.59 Reclaimed Vegetated Land (Disturbed Land and Slopes above Reservoir Water Surface) TOTAL 15.07 111.01 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 height of the alluvium as depicted in the mining plan. 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. All reservoir slopes will be reclaimed to at least 4.5H:1V final grade Since reclamation will be concurrent with mining, most soil, overburden, and bedrock material excavated during mining will be used almost immediately. The miner commits to having a maximum un-reclaimed slope of 3,000 lineal feet. 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 the reclaimed slope, backfilled areas for haul/access roads and recharge pond areas that are not 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 no visible signs of !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application 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, clay, and topsoil from on -site materials. No structural fill will be imported from outside the permit area. 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. The auger holes for the gravel investigation were backfilled with native gravel and soil cuttings from the drilling. The auger holes that were not backfilled were the four monitor wells that were constructed and permitted as permanent monitoring wells to monitor groundwater at the north, east, west, and south sides of the permit boundary. Monitor wells will remain on the property so the end user may continue to monitor levels of the groundwater elevations. 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. Topsoilinq Approximately the top six 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. Topsoil will be re -handled as little as possible and a Technical Revision will be submitted prior to re -locating topsoil stockpiles. 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. Prior to placing topsoil uneven areas and low spots will be graded to subgrade elevation, in addition debris, roots, branches, stones, in excess of 2 inch in size will be removed. Scarify surface to depth of 8 inches where topsoil is to be placed for a roughened condition to assist in eliminating erosion. Scarify/cultivate in areas where equipment used for hauling and spreading topsoil has compacted subsoil. Place topsoil during dry weather and on dry unfrozen subgrade. Remove vegetable matter and foreign non -organic material from topsoil while spreading. Grade topsoil to eliminate rough, low or soft areas. 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. !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application For disturbed areas, the reclamation plan includes re -vegetating with appropriate seed mixes to minimize erosion and re-establish natural terrain. A proper seedbed is firm and free of competing vegetation. Correct firmness is when an adult footprint is only slightly visible on the prepared bed prior to the seeding operation. The seedbed can be firmed, if needed, by pulling a commercial or homemade packer or roller. A firm seedbed is essential for proper seeding depth prior to using the mechanical seeder or broadcasting seed. Apply seed evenly in two intersecting directions. Rake in lightly. Apply seed at the vendor's recommended bulk seed rate/acre according to the quantity of PLS contained in their bulk seed to achieve the specified PLS/acre rate utilizing a mechanical seeder. Where access is limited and seed is applied by hand broadcasting, apply the seed mix at twice the PLS rate per acre and rake in once broadcasting in completed. Do not seed areas in excess of that which can be mulched on same day. Do not sow immediately following rain, when ground is too dry, or when winds are over 10 mph. Immediately following seeding, apply mulch to thickness of 1/4 inch. The seed mixture below was selected as recommended by the DRMS for this climate zone (Dryland Quick Establishment, elevation less than 8,000 feet). Reservoir side slopes below the anticipated reservoir water level will not be seeded. The proposed seed mix is shown in the following table. Reclamation and Temporary Stockpile Seed Mix Seed Mix Species Scientific Name Application Rate* (#PLS/acre) Grasses Intermediate Wheatgrass Thinopyrum intermedium 2.50 Slender Wheatgrass Elymus trachycaulus, 2.00 Pubescent Wheatgrass Thinopyrum intermedium 3.00 Russian Wildrye Psathyrostachys juncea 3.00 Western Wheatgrass Pascoprum smithii 2.00 Sand Dropseed Sporobolus cryptandrus 0.25 *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 per the information provided by the DRMS. The seeded areas will be covered with dead crop litter from sorghum or milo crop forage, or with straw mulch at a rate of 2,000 pounds per acre. Ideal seeding dates for Colorado are November 1 to May 1, when the soil is not frozen. Grasses should be seeded when soil moisture and temperature are optimum for germination. Grasses are designated either "cool" or "warm" season based on their growth cycle. Cool -season grasses can be planted when temperatures are cooler and day lengths are short. Warm -season grasses need warmer temperatures and longer day lengths to grow. Refer to Weld County's seeding recommendations as a resource for time frames outside of the ideal seeding times at www.weld.gov/Government/Departments/Public-Works/Weed-Management/Controlling- Weeds/Reseeding. 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. J&[ Consulting, 1nc, id I WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application Mechanical control will be used as a first priority. Chemical methods will only be used if no other alternative produces acceptable results. See Exhibit J for specifics of the weed control plan. For temporary earthen stockpiles, the reclamation plan includes re -vegetating with appropriate seed mixes to minimize erosion and establish more rapidly to stabilize the stockpiles. If a temporary earthen stockpile remains more than one growing season, it will be seeded with the seed mix above to prevent erosion. Water — General Requirement To minimize the effect on the prevailing hydrologic balance, WW Clyde 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. 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. A ground water model by McGrane Water Engineering, LLC has also been provided and the results indicate that water levels will be affected by +/-0.5 to +/-1 ft and there are 5 wells (2 are owned by WW Clyde) within the predicted water level change so the overall impact of the slurry wall will be insignificant. WW Clyde proposes that they monitor groundwater levels through both interior (within 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 WW Clyde to operate responsibly and to mitigate any damage to wells that is directly attributable to the mining and reclamation of this site. !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application Reclamation — Approximate Time Table The initial proposed rate of production for the mine is 300,000 tons per year and the maximum proposed rate of production for the mine is 1,000,000 tons per year. The total time frame to mine all phases assuming an average production rate of 650,000 tons per year is approximately 12 years. The following table shows the approximate time frame to finish each phase of mining assuming an average production rate of 650,000 tons per year: Mine Phase and Acreage Time Frame to Complete and Reclaim Phase Phase 1 — 98.24 acres 11 years The assumed annual production rate is 300,000 tons initially to 1,000,000 tons maximum for processed material leaving the mine each year. The size and area of reclamation generally consists of the outside mining slope (mined at a 2H:1V slope) in in Phase 1 being reclaimed at a 4.5H:1V slope with the addition of clay, overburden, topsoil, and revegetation. For more information on sequencing and size of the reclamation activities refer to Exhibit L financial warranty calculations. !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application EXHIBIT F Reclamation Plan Map See attached maps. J&[ Consulting, 1nc, id I WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application / OE / START PERFORATED DRAIN PIPE E �4 0E OE 0 • • .72-)—z_OE / a / I I I II 1 II 11 11 11 • �I OE // OE OE- 7- OE/ OE/ G • --�� // /41 / /4-,N // , //413 1//// 8733 //4731 Y�/ / 30 // / /l' r as END PERFORATED DRAIN PIPE HERE, START SOLID PIPE 11 II 11 / / MW -3 LAT: N40.301151 LONG: W104.838891 4.5:1 RECLAIMED SLOPE 200FT WIDE RIPRAP RUNDOWN TYPE M (D5o=12"), 24" THICK WITH 1FT THICK TYPE II BEDDING .1..•'""- • 4725 x MW -4 LAT: N40.297684 LONG: W104.834826 i 7 MW -1 LAT: N40.303936 LONG: W104.834394 - G a 20 FT GRAVEL ACCESS ROAD OE 0 225' (Rec. No. 1537418 & 1539251) RECLAIMED RESERVOR WATER SURFACE ELEV = 4715 WATER SURFACE AREA = 88.88 AC c OE G MW -2 LAT: N40.301374 LONG: W104.830132 END SOLID DRAIN PIPE HERE, START PERFORATED DRAIN PIPE I 0EI C) OJ c E // // OFFSITE ACCESS ROAD END PERFORATED DRAIN PIPE LEGEND: 5280 5280 OE cOD UD O > wE LU VARIES CC o< �z O CO EXISTING CONTOURS PROPOSED CONTOURS PROPERTY LINE EXISTING FENCE EXISTING ROADS EXISTING OVERHEAD ELECTRIC EXISTING UNDERGROUND ELECTRIC EXISTING POWER POLE 400FT (MIN.) NATIVE MATERIAL CC CC J 15' 0z 3' MIN G EXISTING GAS LINE EXISTING RIGHT-OF-WAY SECTION LINE EXISTING 100 YR FLOODPLAIN EXISTING 100 YR FLOODWAY PERMIT BOUNDARY SLURRY WALL RESERVOIR WATER SURFACE PERIMETER DRAIN (IF NEEDED) WATER SURFACE EL = 4715 Lope TYPICAL RECLAMATION SECTION N.T.S. t 3'-5' VARIES ASTM -7 CONCRET AGGREGATEC33E ASTM C33 CONCRETE SAND (IF REQUIRED) 1.5' TYP. OVERBURDEN/CLAY BACKFILL BACKFILL EXISTING TRENCH WITH NATIVE MATERIALS 33' - 38' • d O O d • d • 4 A. d d d d 1.5' TYP. ao d ,0g' 44 4(TYP.) a G d d a . 4' 2' (MIN) SANDY CLAY OVERBURDEN 4.0' .05' (TYP.) PERIMETER GROUNDWATER DRAIN (TYPICAL SECTION IF REQUIRED) N.T.S. SAND AND GRAVEL ALLUVIUM • 305 Denver Avenue - Suite D N c0 E co N O O 9 E U LI`i; co C O M o 0 Q C) J O U- Bernhardt Sand And Grave W.W. Clyde & Co. REVISIONS 0 a- • 0 O O Q) O 0 z J&T Consulting, Inc. r It 1 4t•-• �t Job # 22036 Date 03.12.24 Drawn By Designed By Checked By TPY TPY JCY File JT-IHCS Bernhardt Rec.dwg 200 100 0 200 400 600 SCALE IN FEET Scale As Shown Sheet: 1 Of: 2 START ;FORATED DRAIN PIPE OE E OE / OE OE / 0 END PERFORATED DRAIN PIPE HERE, START SOLID PIPE I '0E /7-- OE / / /° 0 4.5:1 RECLAIMED SLOPE OE of OE 0 E OE of OE OE OE °OEOE 0 0 0 0 --ter-mritTmim -wmf WIDE RIPRAP RUNDOWN TYPE M (D5o=12"), 24" THICK WITH 1FT THICK TYPE II BEDDING 20 FT GRAVEL _ ACCESS ROAD RECLAIMED RESERVOR WATER SURFACE ELEV = 4715 WATER SURFACE AREA = 88.88 AC END SOLID DRAIN PIPE HERE, START PERFORATED DRAIN PIPE // / co OJ \ l p 0 0 ACCESS ROAD END PERFORATED DRAIN PIPE / / / / LEGEND: 5280 5280 OE E 71) EXISTING CONTOURS PROPOSED CONTOURS PROPERTY LINE EXISTING FENCE EXISTING ROADS EXISTING OVERHEAD ELECTRIC EXISTING UNDERGROUND ELECTRIC EXISTING POWER POLE NOTE: G EXISTING GAS LINE EXISTING RIGHT-OF-WAY SECTION LINE EXISTING 100 YR FLOODPLAIN EXISTING 100 YR FLOODWAY PERMIT BOUNDARY SLURRY WALL RESERVOIR WATER SURFACE PERIMETER DRAIN (IF NEEDED) SCARIFY, TOPSOIL, SEED AREA ALL DISTURBED AREAS OUTSIDE OF THE WATER SURFACE WILL BE SEEDED AND MULCHED, WITH THE EXCEPTION OF THE ACCESS ROAD, WHICH WILL BE GRAVEL SURFACED. RECLAIMED AREA TABULATION: WATER SURFACE = 92.35 AC GRAVEL ACCESS ROAD = 3.59 AC SCARIFY, TOPSOIL, SEED AREA = 15.07 AC TOTAL AREA = 111.01 AC 013 Dmt 305 Denver Avenue - Suite D co up O U- Bernhardt Sand And Grave Exhibit F2 - Reclamation Seeding Map W.W. Clyde & Co. REVISIONS 0 O O O J&T Consulting, Inc. Job # 22036 Date 03.12.24 Drawn By Designed By Checked By TPY TPY JCY File JT-IHCS Bernhardt Rec.dwg 200 100 0 200 400 600 SCALE IN FEET Scale As Shown Sheet: 2 Of: EXHIBIT G Water Information Introduction WW Clyde proposes to mine in the land located in the parcel of land situated in the northeast 1/4 of Section 24, Township 4 North, Range 67 West of the 6th Principal Meridian, in Weld County, Colorado. The proposed mining site is located within the Town of Milliken town limits. CR 46 is north of the property and an access road from the property connects to CR 46 near the intersection of CR 46 and CR 25. The South Platte River is adjacent to the property and approximately 880 feet south of the site on the south side of the permit boundary and 180 feet from the east side of the permit boundary. The operation will consist of sand and gravel production and will impact the South Platte River in the form of depletions due to evaporation and operational losses associated with mining. Mining of the Bernhardt Sand and Gravel Pit mining site will last for approximately 11 years. Once reclamation is complete a reservoir will be created with a total surface area being 92.35 acres. The depth to groundwater ranges from 3 to 7 feet seasonally within the permit boundary (measured in MW -1 through MW -4, See the attached piezometer measurements table). The site will be mined down to a depth of 37 feet at the deepest depth thus exposing groundwater to the atmosphere. This exposed groundwater, along with the operational losses associated with the extraction of sand and gravel deposits, will impact the South Platte 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 4713.8. To enable dry mining at the Bernhardt Sand and Gravel Pit mining site, there will be dewatering trenches around the perimeter of Phase 1. These dewatering trenches will change in length throughout mining. The maximum length will occur when Phase 1 is completely mined. The maximum size of dewatering trench will be 5,430 feet long and 5 feet wide, or 0.62 acres of exposed surface area. water will be pumped into dewatering ditch, which traverses the site, and ultimately into the South Platte River. As mining progresses, the dewatering trenches will shift as mining slopes are reclaimed. The gravel pit will have a slurry wall liner being constructed as mining commences in Phase 1. Water Requirements Water use at the Bernhardt Sand and Gravel Pit mining site will include evaporation from exposed groundwater, dust control of haul roads and stockpiles, water for the wash plant (i.e. wash screen for concrete rock and sand) and water retained in material removed from the site. 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 Bernhardt Sand and Gravel mining site will include groundwater exposed in the dewatering trenches. The •' It It Consulting, Inc. WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application maximum exposed surface area at the site during mining is estimated at 1.80 acres. WW Clyde 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 Engineer's Office. To determine precipitation, data from the National Weather Service for Greeley, CO (UNC) (1967-2022) was used. The long-term average precipitation at the Bernhardt Sand and Gravel Pit mining site is estimated at 14.26 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 2.56 feet. The maximum evaporative loss from the 1.80 acres is 4.61 ac -ft. Operational Loss The average annual production from the Bernhardt Sand and Gravel Pit mining site is estimated at 650,000 tons. Using 4% moisture content (2% for moisture in the product and 2% for water used to wash), the total associated consumptive use for water retained in the material mined and water used for washing is 19.13 ac -ft. Dust control and water 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 26.53 ac -ft for Phase 1. Consumptive Use The maximum annual consumptive use (operational loss + evaporation loss) at this site during the mining operation is estimated to be 31.14 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 A-1 Well Permits in the Bernhardt Sand and Gravel Pit — Groundwater Evaluation by McGrane Engineering, LLC shows the permitted wells within 600 feet of the mining limits and permitted wells within the boundaries of the groundwater model/evaluation. 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 the Bernhardt Sand and Gravel Pit — Groundwater Evaluation by McGrane Engineering, LLC that is attached that are within 600 feet of the mining limits. •' It It Consulting, Inc. WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application Table G-1 - Permitted and Decreed Wells Within 600 Feet of Mining Limits No. Permit No WDID Well Name Owner Address City State Zip Code 1 14477 -F -R (Replaced 014477F Shows Expired on DWR Website) 0208226 Stroh Well (Irrigation) Cheryl L. Kasten, Carlene M. Stroh, Karen S. Currier 511 North Sholdt Drive Platteville CO 80651 2 42519-F 0205536 Bernhardt Well (Irrigation) WW Clyde (Purchased Property in 2022) 10303 E. Dry Creek Road, Suite 300 Englewood CO 80112 3 85 -R -R 0205392 Bernhardt Well #5 (Irrigation) WW Clyde (Purchased Property in 2022) 10303 E. Dry Creek Road, Suite 300 Englewood CO 80112 4 5-WCB No WDID CWCB Well Violet Montgomery No Street Address Provided on Permit Eagle CO No Zip Code Provided on Permit 5 13701-F (Red Tag in Photos Showing Do Not Divert dated 2019) 0205393 Bernhardt Well #6 (Irrigation) Herbert B. Bernhardt 500 Broad Street Milliken CO 80543 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 Bernhardt Sand and Gravel Pit mining site results in material injury to surrounding wells, WW Clyde 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 Bernhardt Sand and Gravel Pit 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 WW Clyde will monitor the groundwater levels surrounding the site and provide groundwater recharge if necessary via a groundwater drain as shown on the reclamation plan. The groundwater drain size will be provided with the groundwater drain plan and profiles prior to ' JR[ Consulting, Inc. WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application installation of the slurry wall at the same time that the slurry wall design/construction drawings are provided to the DRMS prior to installation of the slurry wall. WW Clyde will discharge dewatering flows into existing adjacent irrigation laterals where possible to limit the disturbance to the surrounding land or obtain an agreement with one of the adjacent land owners to discharge the dewatering flows directly to the South Platte River. A slurry wall liner is proposed around the individual phase and will likely be installed prior to mining starting. To summarize the mitigation process, as each phase of mining/dewatering occurs, WW Clyde 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, WW Clyde 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 but it is not anticipated that any groundwater levels will drop since the slurry wall will be installed prior to exposing groundwater. Groundwater wells that are not owned by WW Clyde (Table 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, WW Clyde will either obtain a well waiver from the owner of the well, or provide an agreement with the well owner that WW Clyde will mitigate any 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 WW Clyde, 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 WW Clyde has either installed or has access to, and the groundwater level data that has been collected for each well. The groundwater monitoring data will be provided for what has been done to date with this permit application/adequacy review and then submitted in the annual report for the pit to the DRMS after approval of the permit application. Groundwater Quality Monitoring Plan The majority of the mining operations at this site will be within the slurry wall lined area. The areas outside of the slurry wall will be limited to the scale house and haul roads for trucks coming into and out of the pit, which are not likely to affect groundwater quality. To establish pre -mining groundwater quality at the site WW Clyde will have two monitor wells sampled quarterly. The upgradient monitor well that will be sampled is MW -3 and the downgradient monitor well that will be sampled is MW -2. The samples will be taken by a qualified consultant and then tested by SGS Laboratories for the analytes listed in Tables 1-4 of the "Basic Standards for Groundwater." The quarterly sampling will continue until 5 quarters of data has been established. Once the baseline has been established we would recommend annual sampling to monitor the groundwater quality. The groundwater quality sampling data will be provided for what has been done to date with this permit application/adequacy review and then submitted in the annual •' It It Consulting, Inc. WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application report for the pit to the DRMS after approval of the permit application. WW Clyde will notify the DRMS within 7 days of receiving a lab report that indicates any of the standards set forth in Tables 1-4 have been exceeded. If a lab report shows an exceedance, a new sample will be taken to verify exceedance or discount potential lab contamination. •' It It Consulting, Inc. WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application Bernhardt Pit - Monitor Well Readings Well Designation JT MW -1 JT MW -2 JT MW -3 JT MW -4 Description North Side East Side West Side South Side Top of Well Elevation (ft) 4722.96 4723.15 4727.70 4726.65 Ground Elevation (ft) 4719.92 4720.09 4724.78 4723.56 Date Depth to Groundwater from Top of Well (ft) Depth to Groundwater from Ground (ft) Elevation of Groundwater (ft) Depth to Groundwater from Top of Well (ft) Depth to Groundwate r from Ground (ft) Elevation of Groundwater (ft) Depth to Groundwater from Top of Well (ft) Depth to Groundwater from Ground (ft) Elevation of Groundwater (ft) Depth to Groundwater from Top of Well (ft) Depth to Groundwater from Ground (ft) Elevation of Groundwater (ft) March 29, 2023 7.46 4.42 4715.50 9.27 6.21 4713.88 10.92 8.00 4716.78 10.38 7.29 4716.28 April 21, 2023 7.60 4.56 4715.36 8.10 5.04 4715.05 10.02 7.10 4717.68 9.02 5.93 4717.63 May 18, 2023 6.29 3.25 4716.67 6.04 2.98 4717.11 8.54 5.62 4719.16 6.58 3.49 4720.07 June 12, 2023 5.67 2.63 4717.29 6.00 2.94 4717.15 7.50 4.58 4720.20 6.33 3.24 4720.32 July 14, 2023 5.00 1.96 4717.96 5.92 2.86 4717.23 6.58 3.66 4721.12 6.21 3.12 4720.44 August 14, 2023 5.75 2.71 4717.21 6.92 3.86 4716.23 7.33 4.41 4720.37 8.58 5.49 4718.07 September 13, 2023 7.67 4.63 4715.29 8.17 5.11 4714.98 9.92 7.00 4717.78 9.00 5.91 4717.65 October 16, 2023 7.83 4.79 4715.13 8.33 5.27 4714.82 10.17 7.25 4717.53 9.17 6.08 4717.48 November 17, 2023 7.50 4.46 4715.46 7.83 4.77 4715.32 10.00 7.08 4717.70 8.58 5.49 4718.07 December 22, 2023 7.50 4.46 4715.46 8.00 4.94 4715.15 9.83 6.91 4717.87 8.00 4.91 4718.65 January 20, 2024 7.83 4.79 4715.13 8.38 5.32 4714.78 10.17 7.25 4717.53 9.08 5.99 4717.57 February 25, 2024 7.67 4.63 4715.29 8.13 5.07 4715.03 10.02 7.10 4717.68 8.92 5.83 4717.73 March 30, 2024 6.58 3.54 4716.38 7.29 4.23 4715.86 9.63 6.70 4718.08 8.13 5.04 4718.53 Monitor Well Locations in decimal degrees MW -1 - LAT N40.303936, LONG W104.834394 MW -2 - LAT N40.301374, LONG W104.830132 MW - 3 - LAT N40.301151, LONG W104.838891 MW - 4 - LAT N40.297684, LONG W104.834826 SGS Engage --- Analysis Crosstab Job:DA60116 Analysis: General Chemistry - SW846 9056A Regulation 41 Table Value Standard Description: Analyte: pH - from field sample information pH Unit: J&T Consulting (Fort Lupton, CO) BERNHARDT PIT MW -2 DA60116-5 Ground Water 11/17/2023 2:45 PM 7.8 6.5-8.5 J&T Consulting (Fort Lupton, CO) BERNHARDT PIT MW -2 DA60116-5F Groundwater Filtered 11/17/2023 2:45 PM J&T Consulting (Fort Lupton, CO) BERNHARDT PIT MW -3 DA60116-6 Ground Water 11/17/2023 2:25 PM 7.5 6.5-8.5 J&T Consulting (Fort Lupton, CO) BERNHARDT PIT MW -3 DA60116-6F Groundwater Filtered 11/17/2023 2:25 PM J&T Consulting (Fort Lupton, CO) BERNHARDT SAND AND GRAVEL PIT (MW -2) DA62542-3 Ground Water 3/1/2024 12:40 PM 7.31 6.5-8.5 J&T Consulting (Fort Lupton, CO) BERNHARDT SAND AND GRAVEL PIT (MW -2) DA62542-3F Groundwater Filtered 3/1/2024 12:40 PM J&T Consulting (Fort Lupton, CO) BERNHARDT SAND AND GRAVEL PIT (MW -2) DA62542-3FC Groundwater Filtered 3/1/2024 12:40 PM J&T Consulting (Fort Lupton, CO) BERNHARDT SAND AND GRAVEL PIT (MW -3) DA62542-4 Ground Water 3/1/2024 12:30 PM 7.41 6.5-8.5 J&T Consulting (Fort Lupton, CO) BERNHARDT SAND AND GRAVEL PIT (MW -3) DA62542-4F Groundwater Filtered 3/1/2024 12:30 PM J&T Consulting (Fort Lupton, CO) BERNHARDT SAND AND GRAVEL PIT (MW -3) DA62542-4FC Groundwater Filtered 3/1/2024 12:30 PM Result Comments a Calculated as: (Nitrogen, Nitrate) + (Nitrogen, Nitrite) b Elevated detection limit due to matrix interference. General Chemistry - SW846 9056A Regulation 41 Table Value Standard General Chemistry - SW846 9056A Regulation 41 Table Value Standard General Chemistry - SW846 9056A Regulation 41 Table Value Standard TDS TDS (mg/L, unless other units Chloride Chloride (mg/L, unless other units Fluoride Flouride (mg/L, unless other units mg/I given) mg/I given) mg/I given) Not Tested 400 77 250 0.71 2 Not Tested 400 116 250 0.81 2 888 135 250 0.8 2 400 655 400 77.6 250 0.77 2 General Chemistry - SW846 9056A Regulation 41 Table Value Standard General Chemistry - SW846 9056A Regulation 41 Table Value Standard General Chemistry - SW846 9056A Nitrogen, Nitrate Nitrogen, Nitrate Nitrogen, Nitrate + Nitrite Nitrate + Nitrite as Nitrogen Nitrogen, Nitrite mg/I (mg/L, unless other unitsgiven) mg/I (mg/L, unless other unitsgiven) mg/I 0.38 a 10 0.41 10 0.027 3.3 a 10 3.3 10 0.028 5.7 10 5.8 10 0.11 0.54 10 0.54 10 <0.040 Regulation 41 Table Value Standard General Chemistry - SM 2540D-2011 General Chemistry - SW846 9056A Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Nitrogen, Nitrite (mg/L, unless other units Solids, Total Suspended Sulfate Sulfate Dissolved (mg/L, unless other units Aluminum given) mg/I mg/I given) ug/I (1,000 ug/I = 1 mg/L) 1 111 258 250 <100 1 69.7 276 250 <100 1 Not Tested 320 250 <100 1 Not Tested 237 250 <100 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Aluminum Dissolved Antimony Antimony Dissolved Arsenic Arsenic Dissolved Barium (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) 5 <30 0.006 <25 0.01 33 5 <30 0.006 <25 0.01 45.2 5 <30 0.006 <25 0.01 55.7 5 <30 0.006 <25 0.01 32.9 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Barium Dissolved Beryllium Beryllium Dissolved Boron Boron Dissolved Cadmium (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) 2 <10 0.004 133 0.75 <10 2 <10 0.004 151 0.75 <10 2 <10 0.004 206 0.75 <10 2 <10 0.004 202 0.75 <10 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Cadmium Dissolved Chromium Chromium Dissolved Cobalt Cobalt Dissolved Copper (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) 0.005 <10 0.1 <5.0 0.05 <10 0.005 <10 0.1 <5.0 0.05 <10 0.005 <10 0.1 <5.0 0.05 <10 0.005 <10 0.1 <5.0 0.05 <10 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Copper Dissolved Iron Iron Dissolved Lead Lead Dissolved Lithium (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) 0.2 <70 0.3 <50 0.05 9.5 0.2 <70 0.3 <50 0.05 13.7 0.2 <70 0.3 <50 0.05 18.9 0.2 <70 0.3 <50 0.05 10.5 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 7470A Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Lithium Dissolved Manganese Manganese Dissolved Mercury Mercury Dissolved Molybdenum (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) 2.5 1120 0.05 <0.10 0.002 <10 2.5 821 0.05 <0.10 0.002 19 322 0.05 <0.10 0.002 <10 2.5 582 0.05 <0.10 0.002 <10 2.5 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Molybedenum Dissolved Nickel Nickel Dissolved Selenium Selenium Dissolved Silver (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) 0.21 <30 0.1 <50 0.02 <30 0.21 <30 0.1 <50 0.02 <30 0.21 <30 0.1 <50 0.02 <30 0.21 <30 0.1 <50 0.02 <30 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Silver Dissolved Thallium Thallium Dissolved Uranium Uranium Dissolved Vandium (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) 0.05 <10 0.002 <50 0.03 <10 0.05 <10 0.002 <50 0.03 <10 0.05 <10 0.002 <50 0.03 <10 0.05 <15 0.002 <50 0.03 <10 Regulation 41 Table Value Standard Metals Analysis - SW846 6010C Regulation 41 Table Value Standard Vandium Dissolved Zinc Zinc Dissolved (mg/L, unless other units given) ug/I (1,000 ug/I = 1 mg/L) (mg/L, unless other units given) 0.1 <30 2 0.1 <30 2 0.1 <30 2 0.1 <30 2 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 134 -acre survey area. The following provides key items identified as part of the report: 1. Two primary land use class/vegetation cover type exists within the survey area. Habitat within the survey area is characterized as the Great Plains Ruderal Grassland and Shrubland (98%) and disturbed (2%). Historic land use for agricultural practices has led to degradation of the native vegetation community. 2. Generally, there are features on the survey area and the surrounding area that provide general habitat for local songbirds, raptors, and small to mid -size mammals. However, habitat within the survey area is somewhat degraded and of lower ecological value from a wildlife perspective due to historic and current land use for agriculture, which has restricted overall growth and establishment of vegetation. The South Platte River and adjacent eastern cottonwood floodplain and woodland, provides suitable habitat for wildlife species and MBTA species. The South Platte River and associated vegetative community will not be impacted by the proposed project. 3. Non -raptor birds No non -raptor migratory bird nests were observed within the survey area. However, prior to vegetation removal a nest survey should be completed to ensure that no nests have become established within the survey area and active nests, if any, are not disturbed. Non -eagle Raptors No non -eagle raptor nests were observed and no CPW mapped non -eagle raptor nest protection zones are located within the survey area (CPW 2023a). However, nest activity status can vary seasonally and from year-to-year. Future land use changes may require additional nest surveys (generally between February 1 and September 15 (CPW 2020)) to determine activity status within 1/2 to 1/4 mile of the survey area to ensure compliance with CPW recommendations. Eagles CPW SAM data identifies a bald eagle nest listed as "destroyed" being directly northeast of the survey area. Per CPW monitoring logs, the eagle nest has been inactive from 2019-2021, and destroyed in 2022. A field visit by ERC on January 25, 2023 confirmed the identified nest no longer exists and the nest area is no longer being utilized with no efforts by eagles to rebuild the nest. Therefore, the nest site and the survey area is not subject to any restriction per CPW protective buffer zone recommendations or USFWS Bald Eagle Protection Act. 4. No federally listed threatened and endangered species and/or habitat protected under the ESA were identified within the survey area. The survey area is not within designated critical habitat of any federally listed species. The vegetation community and features •' It It Consulting, Inc. WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application within the survey area were investigated as potential habitat for federally listed species. Any future land use changes will result in No Take on any federal listed species, their habitats, or proposed or designated critical habitat. 5. No State listed threatened or endangered species and/or habitat protected by CPW under Colorado Statute Title 33 were identified within the survey area. The vegetation communities within the survey area were investigated as potential habitat for state listed species. Any future land use changes will have no effect on any state listed species, their habitats, or proposed or designated critical habitat. ERC 2023 provided a detailed evaluation of potential critical wildlife habitat and use within the Permit Area. The Permit Area was determined to be comprised of 100% ruderal grassland and disturbed lands which is generally considered low -value wildlife habitat. No federal or state listed threatened and endangered species/habitat were identified. Following the preparation of ERC 2023, CPW issued (-March 2023) new wildlife Species Activity Mapping (polygons) that depict the Permit Area within Mule Deer High Priority Habitat (HPH). This CPW polygon encompasses more than 955 square miles (-611,000 acres) acres along the South Platte and Big Thompson Rivers (refer to Figure 1 in ERC's Adequacy Review Responses to CPW below). The Permit Area represents less than 0.02 % of this entire HPH polygon. In order to minimize potential disturbances to the HPH, the project will implement CPW recommendations addressed in Item 10 of their comment e-mail to DRMS also attached below. No other critical habitat or seasonal wildlife use has been identified within the Permit Area. It is not anticipated that operations (increased traffic, noise, light) will have a significant effect on wildlife in the area. Refer to ERC 2023 for further explanation. Attached are ERC's Adequacy Review Responses to CPW's comments and the Screening Report for Federal and State Listed Threatened and Endangered Species. •' It It Consulting, Inc. WW Clyde Bernhardt Sand and Gravel 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 WW Clyde received a jurisdictional determination (JD) from the Army Corps of Engineers and the JD is attached. The wetlands found in the area are not going to be disturbed based on the mining and reclamation plans. The weed control plan for the site will be as follows and will be discussed and revised if needed by meeting with Tina Booton who is with Weld County's Weed Division: Mechanical and Chemical Control — Mowing will occur throughout the growing season in order to keep the plants from going to seed. Mowing will be terminated in late August followed by a herbicide treatment during late September through October — before a hard frost. Where controls cause vegetation to be removed, re -seeding will occur with native grass specified for the area per Weld County's recommendations and the re -seeding will occur the season after the weed control measures have been implemented. Chemical Control Only — A herbicide application will be applied from rosette to bud stage. This will be followed up with a fall application, if needed. The applicator (licensed if required by law for the type of herbicide) must read the label and use a herbicide labeled for the weeds present at the site. Noxious weed species to be managed are defined as those plant species currently identified by the Colorado State Department of Agriculture (CDA) as noxious under the Colorado Noxious Weed Act. The list is often updated and available at: https://www.colorado.gov/pacific/agconservation/noxious-weed-species Management efforts will be directed to those species identified under List A or List B by the CDA. List A species are required to be eradicated, while List B species will be controlled. Efforts to address List C species will follow guidelines of the Weld County Public Works Weed Management Division. !di J&[ Consulting, 1nc, WW Clyde Bernhardt Sand and Gravel Pit DRMS 112 Permit Application An example Structure Agreement which meets the requirements of the Statutes is shown below. -*:{ ****a::k=+.::;:a:r, ********:scr;.a;:..;:**.f:-;:k*:k.Y:ie********* .****M******** .****4-4,4•* g :**h -*****.k**** Structure Agreement This letter has been provided to you as the owner of a structure 011 or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation. Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent roan -made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure. that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the milling and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado A -lined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.17(a), Rule 6.4.19(u), and C.R.S. 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.1'(a), Rule 6.4.20(a), and C-R.S. >> 34-32-115(4)(d). This form is fOr the sole purpose of ensuring compliance with the Rules and Regulations and ,shall not make the Board or Division a nece.ssan' party to any private civil lawsuit to en/Duce the terms of the agreement or create am' enforcement obligations in the Board or the Di1'tsio �. The following structures are located on or within 200 feet of the proposed affected area: Oil/Gas Lines 4. (Please list additional structures on a separate page) COUNTY OF CERTIFICATION The Applicant, W.W. Clyde & Co. by Andy Carpenter (print applicant/company name), (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that DCP Midstream (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit File Number M-2023-025 (operation name), This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. ACKNOWLEGED BY: Applicant Date STATE OI24 fc ) ) ss ) NOTARY FOR PERMIT APPLICANT Representative Name m Title fzE4 I "f,ga.Jib&f2 1 he foregoing was acknowledged .efore m • thi Yv' day ofd ¢ , by a �• //t i�7► �' •�� f of� f� . 'GLt-1�7 My Commission Expires: Peggy L Sherman NOTARY PUBLIC STATE OF COLORADO NOTARY PO 20O4.4011454 .,Y Cnv MISS ON EXPIRES ❑e amber 30, 2023 -_ _J NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner f�'c. " •:�.. Cv �:, � N;�me = -_-.._.._ Date '% ^,_. ; :<! .--2c1�r_ Title -4-:::-'7'.7...-.0,-......e...., STATE OF /a. -n ) ) ss. COUNTY OF -/a ) fa7 The foregoing was acknowledged before me this J'day of , 2{�zf. by Notary Public as f 4-/i o✓lu7/- r s _ ,v of I I� 7/ €r%•ie, 6i t/,u'�� £-7 My Commission Expires: NlCOLAS a. HA( ENLOCK NOTARY nl.itI..iC STATE OF COLORADO NOTARY ID 70]34OO4C' .4 MYCO 1MJSSI' N E: r'SF:r:S -,F.IJARY 11, 2025 JC York From: JC York Sent: Tuesday, November 7, 2023 3:27 PM To: Mason Clark; Corey Ward Cc: Todd Yee; Acarpenter Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Attachments: Structure Agreement Cureton Midstream 11.7.23.pdf; 22036 IHCS Bernhardt Stability Report 5.11.23 SIGNED.pdf Mason — Attached is the structure agreement and the slope stability report for reference. We had a delay in getting this to you as IHC Scott changed their name to WW Clyde so that is who the agreement would be with. Let me know if you have any questions. For the roadway crossing we have the following anticipated truck weights for your information: Gravel Hauling — Semi -truck — 97,000 lbs total weight on 5 axles Low Boy Equipment Hauling— Semi -truck — 200,000 lbs total weight on 7 axles Gravel Hauling — Super Tandem Truck — 110,000 lbs total weight on 4 axles Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Mason Clark <mason.clark@curetonmidstream.com> Sent: Monday, September 25, 2023 12:06 PM To: JC York <jcyork@j-tconsulting.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Hey JC- We are okay with you guys removing the abandoned segment of pipeline for the slurry wall. We will need to do a little diligence first on our end to verify it is safe to remove, but don't foresee it being an issue. For the roadway crossing, we will need a little more information on the anticipated load to determine how high the road will need to built-up. We will also need to pothole the pipeline to determine the exact depth at that particular point. 1 Mason Clark GIS Manager C: (913) 963-3026 mason.clark@curetonmidstream.com IZ) ItA From: JC York <icyork@j-tconsulting.com> Sent: Wednesday, September 20, 2023 12:53 PM To: Mason Clark <mason.clark@curetonmidstream.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Mason — Attached is a drawing showing some more detail on the locations of the crossings for the slurry wall and where we will have truck traffic crossing the gas lines. Will send over the structure agreement and stability analysis in a separate e- mail. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: JC York Sent: Monday, September 18, 2023 11:44 AM To: Mason Clark <mason.clark@curetonmidstream.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Mason — Thanks for the reply back. I will get some more information to you on the areas where we are showing crossing one of the abandoned lines with the proposed slurry wall (likely would want to see if we can remove the abandoned line for a 2 certain length in this location) as well as sending over the location where we would have truck traffic crossing the active gas line (would want to see what the existing depth is here to determine if we need to add fill to mound over so there is not any issues with crossing with semi -trucks). We will also send over the structure agreement and the stability analysis in regard to the mining slopes that would be offset from the easement and pipeline locations. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Mason Clark <mason.clark@curetonmidstream.com> Sent: Thursday, September 14, 2023 1:39 PM To: JC York <jcyork@j-tconsulting.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Hey JC- We reviewed the mining plan relative to our assets and it looks like you have them plotted correctly. Would you mind sending over the structure agreement and further details regarding activity that would impact our pipelines? We will review internally. Thanks Mason Clark GIS Manager C: (913) 963-3026 mason.clark@curetonmidstream.com IZ) From: JC York <icyork@j-tconsulting.com> Sent: Tuesday, September 12, 2023 9:02 AM To: Mason Clark <mason.clark@curetonmidstream.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River 3 Mason / Corey — I left a voicemail on Mason's mobile and wanted to send over some drawings for the proposed gravel mine that IHC Scott is proposing on its property. We wanted to discuss locations where we will have truck traffic crossing the active gas lines and some locations where the slurry wall will cross some of the abandoned or soon to be abandoned gas lines. Let me know when you may have some time to discuss or meet as we will also be requesting a structure agreement for the mining as we have on other mining projects based on our slope stability analysis which I will also send over once we have had a chance to discuss and review the drawings attached. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 4 JC York From: JC York Sent: Tuesday, November 7, 2023 3:45 PM To: Corey Ward; Mason Clark Cc: Todd Yee; Acarpenter Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Attachments: Structure Agreement Cureton Gilcrest LLC 11.7.23.pdf Attached is the corrected agreement. Let us know if you need anything else. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: JC York Sent: Tuesday, November 7, 2023 3:41 PM To: 'Corey Ward' <corey.ward@curetonmidstream.com>; Mason Clark <mason.clark@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Acarpenter <acarpenter@wwclyde.net> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Ok we will change that. Sorry about that. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 1 From: Corey Ward <corey.ward@curetonmidstream.com> Sent: Tuesday, November 7, 2023 3:36 PM To: JC York <jcyork@j-tconsulting.com>; Mason Clark <mason.clark@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Acarpenter <acarpenter@wwclyde.net> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River I will get with Mason for review, however noting one item requiring revision, is that the 'Structure Owner' in this case will be "Cureton Gilcrest, LLC" rather than "Cureton Midstream". Thakns, Corey Corey Ward Iiiii 0: (720) 390-4509 C: (720) 227-1946 corey.ward@curetonmidstream.com From: JC York <icyork@j-tconsulting.com> Sent: Tuesday, November 7, 2023 3:27 PM To: Mason Clark <mason.clark@curetonmidstream.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Acarpenter <acarpenter@wwclyde.net> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Mason — Attached is the structure agreement and the slope stability report for reference. We had a delay in getting this to you as IHC Scott changed their name to WW Clyde so that is who the agreement would be with. Let me know if you have any questions. For the roadway crossing we have the following anticipated truck weights for your information: Gravel Hauling — Semi -truck — 97,000 lbs total weight on 5 axles Low Boy Equipment Hauling— Semi -truck — 200,000 lbs total weight on 7 axles Gravel Hauling — Super Tandem Truck — 110,000 lbs total weight on 4 axles Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 2 From: JC York Sent: Monday, September 18, 2023 11:44 AM To: Mason Clark <mason.clark@curetonmidstream.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Mason — Thanks for the reply back. I will get some more information to you on the areas where we are showing crossing one of the abandoned lines with the proposed slurry wall (likely would want to see if we can remove the abandoned line for a certain length in this location) as well as sending over the location where we would have truck traffic crossing the active gas line (would want to see what the existing depth is here to determine if we need to add fill to mound over so there is not any issues with crossing with semi -trucks). We will also send over the structure agreement and the stability analysis in regard to the mining slopes that would be offset from the easement and pipeline locations. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Mason Clark <mason.clark@curetonmidstream.com> Sent: Thursday, September 14, 2023 1:39 PM To: JC York <jcyork@j-tconsulting.com>; Corey Ward <corey.ward@curetonmidstream.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: RE: Cureton Gas Lines - Property South of CR 46 Adjacent to South Platte River Hey JC- We reviewed the mining plan relative to our assets and it looks like you have them plotted correctly. Would you mind sending over the structure agreement and further details regarding activity that would impact our pipelines? We will review internally. Thanks Mason Clark GIS Manager C: (913) 963-3026 mason.clark@curetonmidstream.com IZ) 4 An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Oil/Gas Lines 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, W.W. Clyde & Co. (print applicant/company name), by Andy Carpenter (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that Cureton Gilcrest, LLC (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit (operation name), File Number M-2023-025 This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant W. G..a. de- ck" �. Date i a/ STATE O66,GrcCD ) ss. ) COUNTY OF Representative Name Title e4 I T e foregoing,was acknowledged1efore me,tis ay o My Commission Expires: Peggy L Sherman NOTARY PUBLiC STATE OF COLORADO NOTARY ID 240440114$4 hfY CDMMMISS=C74 DS'IRES December30, 2023 /1 NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Date STATE OF COUNTY OF Name Title The foregoing was acknowledged before me this day of , 20 , by as of Notary Public My Commission Expires: JC York From: JC York Sent: Tuesday, November 7, 2023 2:30 PM To: Van Decar, Erik; Tabor, Jon Cc: Acarpenter; Todd Yee Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Attachments: Structure Agreement Chevron Pipeline and Power 11.7.23.pdf; 22036 IHCS Bernhardt Stability Report 5.11.23 SIGNED.pdf Erik — Attached is the structure agreement and it will be with WW Clyde instead of IHC Scott as they changed the name of the company to WW Clyde. Let me know if you have any questions. I also attached the slope stability report for reference that we turned into the DRMS with our permit application. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Van Decar, Erik <erik.vandecar@chevron.com> Sent: Thursday, October 26, 2023 2:09 PM To: JC York <jcyork@j-tconsulting.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River JC, Thank you for the follow up. I actually just sent a reminder yesterday to a couple of folks that I'm waiting on info from. The surveyor is going to get me some as -built depths on that route & then our PM is going to do the load calcs to see where we are. Here is the contact at Xcel that I know: Brian Bolton Xcel Energy I Responsible By Nature Senior Agent, Siting and Land Rights 1800 Larimer Street, 4th Floor, Denver, CO 80202 P: 303-571-7353 C: 303-810-6253 E: Brian.A.Bolton@xcelenergy.com Thank you, 1 Erik Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 2001 16th Street, Suite 900 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <icyork@j-tconsulting.com> Sent: Thursday, October 26, 2023 1:52 PM To: Van Decar, Erik <erik.vandecar@chevron.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: [**EXTERNAL**] RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Eric — Just wanted to touch base with you on the information we provided you and make sure you have everything you need. Did you find out how much cover you have on the pipes based on your as -built information? I know we will need to confirm but just wanted to check. Also you mentioned you may have a contact at Xcel Energy for their land person and I wanted to see if you could provide that to me as well. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Van Decar, Erik <erik.vandecar@chevron.com> Sent: Wednesday, October 4, 2023 2:55 PM To: JC York <jcyork@j-tconsulting.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River JC, Thank you for that. Do you have time for a Teams meeting in the next week or so to discuss? I will run traps with folks on the CPP side & see if anyone else on our end needs/wants to attend. Regards, 2 Erik Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 2001 16th Street, Suite 900 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <icyork@j-tconsulting.com> Sent: Wednesday, October 4, 2023 2:22 PM To: Van Decar, Erik <erik.vandecar@chevron.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: [**EXTERNAL**] RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Erik — Attached is the agreement. I can send a check out tomorrow. We make it payable to Chevron Pipeline Company correct? I will include a hard copy with the check and send to the address on the agreement. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Van Decar, Erik <erik.vandecar@chevron.com> Sent: Thursday, September 14, 2023 4:19 PM To: JC York <jcyork@j-tconsulting.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River JC, Thank you for the email. I believe there are Black Diamond lines on the subject property. These are managed by Chevron Pipeline & Power (Chevron Pipe Line Company), and they require the attached encroachment application to be completed before we can further engage. Can you please complete the attached form & email back to me? We can discuss where to send the application fee as well. Thank you, 3 Erik Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 2001 16th Street, Suite 900 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <icyork@j-tconsulting.com> Sent: Thursday, September 14, 2023 3:45 PM To: Van Decar, Erik <erik.vandecar@chevron.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: [**EXTERNAL**] Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Erik /Jon — I spoke to one of your coworkers this morning and he sent me your e-mail address and I wanted to send over some drawings for the proposed gravel mine that IHC Scott is proposing on its property. We wanted to discuss locations where we will have truck traffic crossing the active gas lines. Let me know when you may have some time to discuss or meet as we will also be requesting a structure agreement for the mining as we have on other mining projects based on our slope stability analysis which I will also send over once we have had a chance to discuss and review the drawings attached. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 4 JC York From: Sent: To: Subject: Follow Up Flag: Due By: Flag Status: Van Decar, Erik <erik.vandecar@chevron.com> Tuesday, December 19, 2023 11:34 AM JC York RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Follow up Thursday, January 4, 2024 5:00 PM Flagged I got some info from our engineering group: Sorry for the delay. There are a few inputs regarding the soil conditions and with a conservative assessment and with the weights provided previously we would require 5.5' of cover on our line for the crossings. They are close to that in the proposed are at ^'4.6' so we'd require an additional foot or matting in the crossing areas. Is that helpful? Thank you, Erik Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 1099 18th Street, Suite 1500 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <jcyork@j-tconsulting.com> Sent: Friday, December 1, 2023 8:17 AM To: Van Decar, Erik <erik.vandecar@chevron.com> Subject: [**EXTERNAL**] RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Erik — I may be able to make something work but I will be out of town next week and the following week. I could probably do some type of virtual meeting. Let me know what you are thinking. I will be back the week of December 18th Regards, J.C. J.C. York, P.E. 1 J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Van Decar, Erik <erik.vandecar@chevron.com> Sent: Friday, December 1, 2023 6:58 AM To: JC York <icyork@j-tconsulting.com> Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Do you have some time next week for a meeting? Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 2001 16th Street, Suite 900 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <icyork@j-tconsulting.com> Sent: Tuesday, November 7, 2023 2:30 PM To: Van Decar, Erik <erik.vandecar@chevron.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Acarpenter <acarpenter@wwclyde.net>; Todd Yee <toddyee@j-tconsulting.com> Subject: [**EXTERNAL**j RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Erik — Attached is the structure agreement and it will be with WW Clyde instead of IHC Scott as they changed the name of the company to WW Clyde. Let me know if you have any questions. I also attached the slope stability report for reference that we turned into the DRMS with our permit application. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 2 FAX: (303) 857-6224 From: Van Decar, Erik <erik.vandecar@chevron.com> Sent: Thursday, October 26, 2023 2:09 PM To: JC York <icyork@j-tconsulting.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River JC, Thank you for the follow up. I actually just sent a reminder yesterday to a couple of folks that I'm waiting on info from. The surveyor is going to get me some as -built depths on that route & then our PM is going to do the load calcs to see where we are. Here is the contact at Xcel that I know: Brian Bolton Xcel Energy I Responsible By Nature Senior Agent, Siting and Land Rights 1800 Larimer Street, 4th Floor, Denver, CO 80202 P: 303-571-7353 C: 303-810-6253 E: Brian.A.Bolton@xcelenergy.com Thank you, Erik Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 2001 16th Street, Suite 900 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <jcyork@j-tconsulting.com> Sent: Thursday, October 26, 2023 1:52 PM To: Van Decar, Erik <erik.vandecar@chevron.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: [**EXTERNAL**j RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Eric — Just wanted to touch base with you on the information we provided you and make sure you have everything you need. Did you find out how much cover you have on the pipes based on your as -built information? I know we will need to confirm but just wanted to check. Also you mentioned you may have a contact at Xcel Energy for their land person and I wanted to see if you could provide that to me as well. Regards, 3 J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Van Decar, Erik <erik.vandecar@chevron.com> Sent: Wednesday, October 4, 2023 2:55 PM To: JC York <icyork@j-tconsulting.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River JC, Thank you for that. Do you have time for a Teams meeting in the next week or so to discuss? I will run traps with folks on the CPP side & see if anyone else on our end needs/wants to attend. Regards, Erik Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 2001 16th Street, Suite 900 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <icyork@j-tconsulting.com> Sent: Wednesday, October 4, 2023 2:22 PM To: Van Decar, Erik <erik.vandecar@chevron.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: [**EXTERNAL**j RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Erik — Attached is the agreement. I can send a check out tomorrow. We make it payable to Chevron Pipeline Company correct? I will include a hard copy with the check and send to the address on the agreement. Regards, J.C. 4 J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Van Decar, Erik <erik.vandecar@chevron.com> Sent: Thursday, September 14, 2023 4:19 PM To: JC York <icyork@j-tconsulting.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: RE: Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River JC, Thank you for the email. I believe there are Black Diamond lines on the subject property. These are managed by Chevron Pipeline & Power (Chevron Pipe Line Company), and they require the attached encroachment application to be completed before we can further engage. Can you please complete the attached form & email back to me? We can discuss where to send the application fee as well. Thank you, Erik Erik T. Van Decar Senior Land Representative erik.vandecar@chevron.com Chevron Pipeline & Power Black Diamond Rockies Midstream 2001 16th Street, Suite 900 Denver, Colorado 80202 Tel 970.556.9476 From: JC York <icyork@j-tconsulting.com> Sent: Thursday, September 14, 2023 3:45 PM To: Van Decar, Erik <erik.vandecar@chevron.com>; Tabor, Jon <jon.tabor@chevron.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: [**EXTERNAL**j Noble Midstream Gas Lines - Property South of CR 46 Adjacent to South Platte River Be aware this external email contains an attachment and/or link. Ensure the email and contents are expected. If there are concerns, please submit suspicious messages to the Cyber Intelligence Center using the Report Phishing button. Erik /Jon — I spoke to one of your coworkers this morning and he sent me your e-mail address and I wanted to send over some drawings for the proposed gravel mine that IHC Scott is proposing on its property. We wanted to discuss locations where we will have truck traffic crossing the active gas lines. Let me know when you may have some time to discuss or meet as we will also be requesting a structure agreement for the mining as we have on other mining projects based on our slope stability analysis which I will also send over once we have had a chance to discuss and review the drawings attached. Regards, 5 J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 6 P:\22036 IHC Scott Milliken Property\Drawings\Xref\jt-ihcs milliken base.dwg, Vicinity, 5/18/2023 11:00:48 AM gib • M N CC O. n Y J N. CC HWY60 m • iCR46=- I) r - SITE • 7. • 2000 1000 0 2000 SCALE IN FEET i 4 144100 Iiirg _sr s WCR 46 WCR 46 : , uJ&T Consulting, Inc. 305 Denver Avenue - Suite D Fort Lupton, CO 80621 303-857-6222 IHC Scott Bernhardt Sand and Gravel Pit Exhibit B - Index Map Date: 5.18.23 Job No: 22036 Drawn: TPY Scale: 1" = 2000' Sheet: 1 Of: 1 P:\22036 IHC Scott Milliken Property\Drawings\Plan Sheets\Oil-Gas Crossings\JT-IHCS Bernhardt Oil -Gas Crossings-CHEVRON.dwg, Chevron Overall, 10/4/2023 3:49:36 PM 500 250 0 500 - CHEVRON/ NOBLE MIDSTREAM OIL/GAS LINE TRUCK TRAFFIC CROSSING CHEVRON/ NOBLE MIDSTREAM OIL/GAS LINE EASEMENT GRAVEL PIT SCALE IN FEET J&T Consulting, Inc. 305 Denver Avenue - Suite D Fort Lupton, CO 80621 303-857-6222 IHC Scott, Inc. Bernhardt Sand & Gravel Pit Chevron Pipeline Crossings Map Date: 10.4.23 Job No: 22036 Drawn: TPY Scale: 1 "=500' Sheet: 1 Of: 2 An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Oil/Gas Lines 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, W.W. Clyde & Co. by Andy Carpenter (print applicant/company name), (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that Chevron Pipeline and Power Black Diamond Rockies Midstream (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit (operation name), File Number M-2023- 025 This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant ( ), L), Date / 0l 31 O � L STATE ❑16D67b ) '1 ) ss. COUNTY OF W ) Representative Name Title 4 /441./AC 2) �,rc�p, S Aaye foregoi g was acknowledged before e thisr of as ,^P � of My Commission Expires: ataxy Peggy L Sherman NOTARY PUBLIC STATE OF COLORADO NOTARY la 200440114434 .'.W COMMISS ON laPIRES December 30, 2023 NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Date STATE OF COUNTY OF Name Title The foregoing was acknowledged before me this day of , 20 , by as of Notary Public My Commission Expires: -- P:\22036 IHC Scott Milliken Property\Drawings\Plan Sheets\Oil-Gas Crossings\JT-IHCS Bernhardt Oil -Gas Crossings-CHEVRON.dwg, Chevron 1, 10/4/2023 3:49:40 PM CHEVRON/ NOBLE MIDSTREAM OIL/GAS LINE -G- TRUCK TRAFFIC CROSSING PROPOSED ACCESS ROAD PROPOSED SLURRY WALL PROPOSED MINING LIMIT • • CHEVRON/NOBLE MIDSTREAM OIL/GAS LINE EASEMENT 100 50 0 100 -I I SCALE IN FEET // / / 7 I / I z • t r I 1 -• 4 N. • i • • J&T Consulting, Inc. 305 Denver Avenue - Suite D Fort Lupton, CO 80621 303-857-6222 IHC Scott, Inc. Bernhardt Sand & Gravel Pit Chevron Pipeline Crossing 1 Date: 10.4.23 Job No: 22036 Drawn: TPY Scale: 1"=100' Sheet: 2 Of: 2 Chevron lit4101 EASEMENT ENCROACHMENT OR RELEASE APPLICATION FORM SUBMIT TO: CHEVRON PIPE LINE COMPANY CPL LAND DEPARTMENT 1400 SMITH STREET, 38 FLOOR HOUSTON, TX 77002 APPLICATION DATE: 9/29/23 PROPERTY ADDRESS: MILLIKEN 22430 NE4 24 4 67 EXC N225' ALSO EXC BEG E4 COR SEC TH WLY ALG E -W C/L 588.23' T H NELY 1568.1' TH SLY 1483.57' ALG E LN SEC TO BEG EXC OG&M (4RR) NAME OF APPLICANT: (PRINT OR TYPE) Andy Carpenter Area Manager, Aggregates IHC Scott, Inc. Name Title Company 801 8th Street, Suite 130 Greeley CO 80631 Address City State Zip Code APPLICANT CONTACT INFORMATION: J.C. York J&T Consulting, Inc. (970) 222-9530 jcyork@j-tconsulting.com Name Phone Number Email 305 Denver Avenue, Suite D Fort Lupton CO 80621 Address City THE FOLLOWING MUST BE INCLUDED WITH THIS APPLICATION: State Zip Code 1. A non-refundable application fee of $500.00 made payable to Chevron Pipe Line Company (CPL) 2. A survey or drawing with the easement highlighted 3. A Google Earth screenshot or map of general area 4. Property deed and Tax Assessor parcel number 5. A written description/explanation of the requested encroachment or release Please note: The purpose of this application is for CPL to determine whether it or another affiliated legal entity managed within Chevron's pipeline business unit currently owns the easement and which pipeline system is associated with the easement. If it is determined that a legal entity managed within Chevron's pipeline business unit is the owner, then the steps below are applicable; otherwise, your request will need to be directed elsewhere. AFTER CPL HAS COMPLETED THE INITIAL APPLICATION REVIEW: If it is determined that a legal entity managed within Chevron's pipeline business unit is the confirmed owner, processing can proceed on Applicant's request as described in the steps below: 1. If CPL deems it necessary to conduct additional surveys, the cost of any additional survey is the responsibility of the Applicant. CPL will provide an estimate to the Applicant and payment is required before the survey will be completed. Applicant may be required to pay other processing costs as directed by CPL. 2. If CPL deems it necessary to perform any construction or engineering work to protect the pipeline, the cost of any construction or engineering work is the responsibility of the Applicant. CPL will provide an estimate to the Applicant and payment is required before the construction will be completed. Applicant may be required to pay other processing costs as directed by CPL. APPLICANT ACKNOWLEDGES THAT APPLICANT'S SUBMISSION OF AND CPL'S PROCESSING OF THIS APPLICATION DOES NOT GUARANTEE APPROVAL OF APPLICANT'S REQUEST FOR AN ENCROACHMENT OR RELEASE. APPLICANT FURTHER ACKNOWLEDGES THAT AT ANY TIME DURING THE PROCESSING OF ITS APPLICATION, APPLICANT'S REQUEST MAY BE DENIED FOR ANY BUSINESS, COMMERCIAL, ENVIRONMENTAL OR OTHER REASON, AND ALL FEES PAID AND COSTS INCURRED (INCLUDING BUT NOT LIMITED TO THE $500.00 APPLICATION FEE) BY APPLICANT ARE NON-REFUNDABLE. Signature of Requestor/Applicant JC York From: JC York Sent: Tuesday, November 7, 2023 2:23 PM To: Ted Schultz Cc: Andy Carpenter; Todd Yee; Brian DeRose Subject: RE: [EXTERNAL] :PDC Plugged and Abandoned Wells - Property South of CR 46 Adjacent to South Platte River Attachments: Structure Agreement PDC Energy 11.7.23.pdf Ted — Sorry for the delay. Attached is the structure agreement. We had to wait on this because IHC Scott is now WW Clyde so the agreement will be with WW Clyde. Let me know if you have any questions. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Ted Schultz <Ted.Schultz@pdce.com> Sent: Wednesday, September 20, 2023 10:30 AM To: JC York <jcyork@j-tconsulting.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com>; Brian DeRose <Brian.Derose@pdce.com> Subject: RE: [EXTERNAL] :PDC Plugged and Abandoned Wells - Property South of CR 46 Adjacent to South Platte River J.C.- Good morning. As a follow up to your email and our call, would you mind sending over the structure agreement for mining that you will be requesting. As I work with our Team on this end, I wanted to be able to have us all look at this agreement as well. Thanks J.C. 1 PDC ENERGY Ted Schultz Surface Landman - Agent for PDC Energy, Inc. Office: 970-506-9272 Mobile: 303-522-4043 Ted.Schultz@pdce.com From: JC York <jcyork@j-tconsulting.com> Sent: Thursday, September 14, 2023 10:49 AM To: Ted Schultz <Ted.Schultz@pdce.com> Cc: Andy Carpenter <acarpenter@ihcscott.com>; Todd Yee <toddyee@j-tconsulting.com> Subject: [EXTERNAL] :PDC Plugged and Abandoned Wells - Property South of CR 46 Adjacent to South Platte River Ted — I left a voicemail on your mobile number and wanted to send over some drawings for the proposed gravel mine that IHC Scott is proposing on its property. We wanted to discuss locations where PDC has plugged and abandoned oil/gas wells that are within the mining limits and see if those casings can be cut and capped as the mining progresses down to bedrock. Let me know when you may have some time to discuss or meet as we will also be requesting a structure agreement for the mining as we have on other mining projects which I will also send over once we have had a chance to discuss and review the drawings attached. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 2 An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Abandoned Oil/Gas Wells 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, W. W- Clyde & Co. (print applicant/company name), by Andy Carpenter (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that PAC Energy (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit File Number M-2023- 025 (operation name), This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. ACKNOWLEGED BY: Applicant. - Date 0131.-a te STATE O Qf COUNTY OF(04-‘ NOTARY FOR PERMIT APPLICANT } ss. } Representative Name Title T e foregoing was acknowledge befor e this' day of r as]�(��i. �Y1� ,� of My Commission Expires: Not a`r 'Tti 11c Peggy L Sherman NOTARY PUBLJC STATE OF COLORADO NOTARY ID 20644011484 -' . etla5'O►d CPI,tES December 30.2023 NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Date STATE OF COUNTY OF Name Title The foregoing was acknowledged before me this day of , 20 , by as of Notary Public My Commission Expires: JC York From: Muncy, Lynette L <Lynette.Muncy@xcelenergy.com> Sent: Thursday, October 26, 2023 2:22 PM To: Holloway, Sean A; JC York Cc: Todd Yee; Andy Carpenter Subject: RE: Public Service ROW and Xcel Power Transmission Line and Xcel Gas Line - Property South of CR 46 Adjacent to South Platte River Hi Sean: I am the person of contact. I have not had a chance to research, my apology. I have a priority project I am working on writing up and thereafter I will research this to have a full understanding and know how to reply back. I should have something tomorrow afternoon. Thank you for your patience. From: Holloway, Sean A <Sean.A.Holloway@xcelenergy.com> Sent: Thursday, September 14, 2023 10:51 AM To: Muncy, Lynette L <Lynette.Muncy@xcelenergy.com> Subject: FW: Public Service ROW and Xcel Power Transmission Line and Xcel Gas Line - Property South of CR 46 Adjacent to South Platte River Good morning Lynette, Please see the email below, could you point me in the right direction for this request? Sean Holloway Xcel Energy Design Supervisor — Pike Engineering Design Contractor for Xcel Energy 5245 Ronald Reagan Blvd Suite 104 Johnstown, CO 80534 Cell: 970-806-9194 Office: 970-654-2921 Email: Sean.A.Holloway@xcelenergy.com Direct Supervisor: Jeremy.jensen@xcelenergy.com From: JC York <icyork@j-tconsulting.com> Sent: Tuesday, September 12, 2023 9:27 AM To: Holloway, Sean A <Sean.A.Holloway@xcelenergy.com> Cc: Todd Yee <toddyee@j-tconsulting.com>; Andy Carpenter <acarpenter@ihcscott.com> Subject: Public Service ROW and Xcel Power Transmission Line and Xcel Gas Line - Property South of CR 46 Adjacent to South Platte River You don't often get email from jcyork@j-tconsulting.com. Learn why this is important 1 EXTERNAL - STOP & THINK before opening links and attachments. Sean — Per our phone conversation this morning I wanted to send over some drawings for the proposed gravel mine that IHC Scott is proposing on its property. We wanted to discuss locations where we will have truck traffic crossing the Public Service ROW. Let me know when you may have some time to discuss or meet as we will also be requesting a structure agreement for the mining as we have on other mining projects based on our slope stability analysis which I will also send over once we have had a chance to discuss and review the drawings attached. Previously when the area was farmed they used an existing dirt road (gravel surfaced) that crossed into and out of the Public Service ROW (see proposed truck route drawing attached. We wanted to figure out who we needed to talk to in order to get a formalized agreement with Public Service/Xcel Energy. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 2 JC York From: Muncy, Lynette L <Lynette.Muncy@xcelenergy.com> Sent: Monday, October 30, 2023 5:08 PM To: Swanson, Tyler J Cc: Holloway, Sean A; JC York Subject: RE: Structure Agreement - Ewing Mine - #2023-336 Attachments: PSCo High Pressure Gas Encroachment Guidelines_JAN2021 (004).pdf; FW: Public Service ROW and Xcel Power Transmission Line and Xcel Gas Line - Property South of CR 46 Adjacent to South Platte River Importance: High Hello, I received several emails regarding a gravel mine operation wanting an agreement to be able to cross PSCo's ROW which I believe to be OH Electric Transmission and I see that there may be encroachment on our HP gas lines that are also in part of that area. It is my opinion that you will need to apply for a License from both electric transmission and HP gas which are two separate applications. Tyler Swanson handles electric transmission and he will send you a link for his department application. Tyler, I don't believe you received all the documentation I got for review, attached. The below link is for HP gas application. Once applications are received the locations will need to be Investigated to determine the ROW and how it is affected by truck, equipment crossings, if any. Agreements, License can be discussed at that time. HP Link for Application Thanks for your notification of construction work planned near Xcel Energy high pressure gas pipeline. To initiate review, an encroachment request must first be completed at the following link: Below is a summary of the HP Gas encroachment application process along with supporting design guidelines which outline Xcel HP pipeline construction crossing methods, clearances and safe pipe bedding practices. 1. Applicant initiates an HP gas encroachment request at the following hyperlink after selecting CO as the appropriate state from the website: • encroachment requests (xcelenergy.com) 2. Applicants information is captured in a text file and an auto -generated e-mail is submitted to encroachments@xcelenergy.comwhereitislogged and assignedtoan HPengineerforreview. 3. Assigned HP Engineer works with Siting & Land Rights agent to determine whether impacted area falls within Xcel easement, coordinates with Community Relations Area Mgr. for relevant customer specific information. 4. HP Engineer completes design review and recommends clearance requirements, maximum axle loading requirements and engineering related items as applicable. 5. If Xcel easement applies, Siting & Land Rights issues a license agreement along with engineering criteria; if outside of easement, HP Engineer communicates design restrictions and watch and protect requirements by HP Operations to monitor upcoming site construction. 6. HP encroachment applications typically take 3 to 4 weeks for the above process to be fully executed for a standard license agreement before site excavation is scheduled to start. In rare instances where a HP pipeline must be 1 relocated due to easement conflicts or customer requests, allow up to 12 months advanced notice for pipeline relocations prior to site construction, depending upon the scope of the project. Thank you, Lynette Muncy Xcel Energy I You. Us. Together. Public Service Company of Colorado, PSCo Northern and Weld I Division Agent Right of Way & Permits Department Electric & Gas Distribution, HP Gas 1123 West 3rd Ave., Denver, CO 80223 C: 720-838-0960 E: Lynette.Muncy@xcelenergy.com Direct Supervisor: Adam.R.Pena@xcelenergy.com xcelenergy.com Please consider the environment before printing this email. From: Swanson, Tyler J <Tyler.J.Swanson@xcelenergy.com> Sent: Wednesday, October 4, 2023 10:34 AM To: Muncy, Lynette L <Lynette.Muncy@xcelenergy.com> Subject: Structure Agreement - Ewing Mine - #2023-336 Hi Lynette, I've got a structure agreement request for S30, T2N, R66W in Weld County. See the map on the last page of the attachment. I'm not sure if this is something for you or someone else. I don't see any transmission facilities here though. Please take a look and hopefully we can find the right person to handle it. Thank you, Tyler J. Swanson Xcel Energy Senior Siting & Land Rights Agent 1800 Larimer Street, Suite 400, Denver, CO 80202 P: 303.571.7294 C: 303.889.9505 E: tyler.j.swanson@xcelenergy.com 2 JC York From: JC York Sent: Monday, November 27, 2023 1:23 PM To: Swanson, Tyler J Cc: Holloway, Sean A; 'Muncy, Lynette L'; 'Andy Carpenter' Subject: RE: Bernhardt Sand and Gravel Pit - WW Clyde Owns Property (formerly IHC Scott) Attachments: Encroachment-Application-Electric-Transmission-Line.pdf; IHC Scott, Inc. Bernhardt Pit Haul Route.pdf; JT IHCS Location Map for Bernhardt Pit 3.13.23.pdf; 1 Exhibit El - Reclamation Plan Map 6.7.23.pdf; 1 Exhibit C1 - Pre -Mining Plan Map 6.7.23.pdf; 2 Exhibit C2 - Mining Plan Map 6.7.23.pdf Tyler — Attached is the encroachment form for electrical transmission and the maps for the locations we are talking about encroaching. Let me know if you need anything else and also where I should send the $500 check to for the review. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Muncy, Lynette L <Lynette.Muncy@xcelenergy.com> Sent: Monday, October 30, 2023 5:08 PM To: Swanson, Tyler J <Tyler.J.Swanson@xcelenergy.com> Cc: Holloway, Sean A <Sean.A.Holloway@xcelenergy.com>; JC York <jcyork@j-tconsulting.com> Subject: RE: Structure Agreement - Ewing Mine - #2023-336 Importance: High Hello, I received several emails regarding a gravel mine operation wanting an agreement to be able to cross PSCo's ROW which I believe to be OH Electric Transmission and I see that there may be encroachment on our HP gas lines that are also in part of that area. It is my opinion that you will need to apply for a License from both electric transmission and HP gas which are two separate applications. Tyler Swanson handles electric transmission and he will send you a link for his department application. Tyler, I don't believe you received all the documentation I got for review, attached. The below link is for HP gas application. Once applications are received the locations will need to be Investigated to determine the ROW and how it is affected by truck, equipment crossings, if any. Agreements, License can be discussed at that time. 1 HP Link for Application Thanks for your notification of construction work planned near Xcel Energy high pressure gas pipeline. To initiate review, an encroachment request must first be completed at the following link: Below is a summary of the HP Gas encroachment application process along with supporting design guidelines which outline Xcel HP pipeline construction crossing methods, clearances and safe pipe bedding practices. 1. Applicant initiates an HP gas encroachment request at the following hyperlink after selecting CO as the appropriate state from the website: • encroachment requests (xcelenergy.com) 2. Applicants information is captured in a text file and an auto -generated e-mail is submitted to encroachments@xcelenergy.comwhereitislogged and assignedtoan HPengineerforreview. 3. Assigned HP Engineer works with Siting & Land Rights agent to determine whether impacted area falls within Xcel easement, coordinates with Community Relations Area Mgr. for relevant customer specific information. 4. HP Engineer completes design review and recommends clearance requirements, maximum axle loading requirements and engineering related items as applicable. 5. If Xcel easement applies, Siting & Land Rights issues a license agreement along with engineering criteria; if outside of easement, HP Engineer communicates design restrictions and watch and protect requirements by HP Operations to monitor upcoming site construction. 6. HP encroachment applications typically take 3 to 4 weeks for the above process to be fully executed for a standard license agreement before site excavation is scheduled to start. In rare instances where a HP pipeline must be relocated due to easement conflicts or customer requests, allow up to 12 months advanced notice for pipeline relocations prior to site construction, depending upon the scope of the project. Thank you, Lynette Muncy Xcel Energy I You. Us. Together. Public Service Company of Colorado, PSCo Northern and Weld I Division Agent Right of Way & Permits Department Electric & Gas Distribution, HP Gas 1123 West 3rd Ave., Denver, CO 80223 C: 720-838-0960 E: Lynette.Muncy@xcelenergy.com Direct Supervisor: Adam.R.Pena@xcelenergy.com xcelenergy.com Please consider the environment before printing this email. From: Swanson, Tyler J <Tyler.J.Swanson@xcelenergy.com> Sent: Wednesday, October 4, 2023 10:34 AM To: Muncy, Lynette L <Lynette.Muncy@xcelenergy.com> Subject: Structure Agreement - Ewing Mine - #2023-336 2 Hi Lynette, I've got a structure agreement request for S30, T2N, R66W in Weld County. See the map on the last page of the attachment. I'm not sure if this is something for you or someone else. I don't see any transmission facilities here though. Please take a look and hopefully we can find the right person to handle it. Thank you, Tyler J. Swanson Xcel Energy Senior Siting & Land Rights Agent 1800 Larimer Street, Suite 400, Denver, CO 80202 P: 303.571.7294 C: 303.889.9505 E: tyler.j.swanson@xcelenergy.com 3 JC York From: Muncy, Lynette L <Lynette.Muncy@xcelenergy.com> Sent: Tuesday, November 7, 2023 4:23 PM To: Hoffmeyer, Kaela Cc: Vallejos, Jesse M; JC York Subject: New encroachment project Importance: High Hi Kaela: Could you contact JC York from J&T Consulting Inc and help him get an encroachment application submitted. He indicated he cannot get the application to go through. Will you let me know that you were able to speak with JC and help him with the application. Thank you. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 JC York icyork@j-tconsulting.com Office: (303) 857-6222 Mobile: (970) 222-9530 Thank you, Lynette Muncy Xcel Energy I You. Us. Together. Public Service Company of Colorado, PSCo Northern and Weld I Division Agent Right of Way & Permits Department Electric & Gas Distribution, HP Gas 1123 West 3rd Ave., Denver, CO 80223 C: 720-838-0960 E: Lynette.Muncy@xcelenergy.com Direct Supervisor: Adam.R.Pena@xcelenergy.com xcelenergy.com Please consider the environment before printing this email. 1 JC York From: Shorr, Austin E <Austin.E.Shorr@xcelenergy.com> Sent: Thursday, February 1, 2024 10:46 AM To: JC York Cc: ashorr@entrustsol.com; Dan Marshall; acarpenter@wwclyde.net Subject: RE: #698 - CR 25 and CR 46 - Encroachment request Good morning, Thank you for taking the time to discuss your gas encroachment request. I appreciate the clarification on the road surface being gravel and details about the semi -truck, weighing 200,000lb including the maximum load. Considering that there are no plans to construct any buildings at the mine or near an easement, I believe construction plans may not be necessary for approval. As discussed, kindly coordinate with a Hydrovac company for the potholing data. The Hydrovac company should contacts 811 for locates and requests an Xcel representative to be present during the potholing process. Should you have any further inquiries or require additional assistance, please do not hesitate to reach out. Best Regards, Austin E. Shorr Xcel Energy Design Engineer, Contractor for Xcel Energy 9777 Pyramid Court Ste. 300 Englewood, CO 80112 P: Xcel Customer Call line: 720-457-6039 E: Austin.E.Shorrgxcelenergy.com xcelenergy.com/InstallAndConnect Visit our website for more information about installing and connecting service with Xcel Energy. - From: JC York <jcyork@j-tconsulting.com> Sent: Thursday, February 1, 2024 9:06 AM To: Shorr, Austin E <Austin.E.Shorr@xcelenergy.com> Cc: ashorr@entrustsol.com; Dan Marshall <dmarshall@enengineering.com>; acarpenter@wwclyde.net Subject: RE: #698 - CR 25 and CR 46 - Encroachment request You don't often get email from jcyork@j-tconsulting.com. Learn why this is important EXTERNAL - STOP & THINK before opening links and attachments. Austin — Below should also help with the types of trucks below. Sorry I forgot to include this in my last e-mail. Gravel Hauling — Semi -truck — 97,000 lbs total weight on 5 axles Low Boy Equipment Hauling— Semi -truck — 200,000 lbs total weight on 7 axles Gravel Hauling — Super Tandem Truck — 110,000 lbs total weight on 4 axles 1 Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: JC York Sent: Thursday, February 1, 2024 7:23 AM To: 'Shorr, Austin E' <Austin.E.Shorr@xcelenergy.com> Cc: 'ashorr@entrustsol.com' <ashorr@entrustsol.com>; 'Dan Marshall' <dmarshall@enengineering.com>; 'acarpenter@wwclyde.net' <acarpenter@wwclyde.net> Subject: RE: #698 - CR 25 and CR 46 - Encroachment request Austin — Attached is an updated map showing the overall area where the encroachment would occur on public service ROW in regard to the existing road that would be used. Please let me know that you received this e-mail. The expected truck weights that would be accessing the roadway to get to and from the proposed Bernhardt Gravel mine are as follows: 97,000 lbs — 5 axle semi truck/trailer 110,000 lbs — 4 axle tandem truck with booster axle 200,000 lbs — 7 axle semi truck/trailer with booster axle We would also like to see what we may need to do to schedule some potholing to determine the actual depth of your gas lines but wanted to see how we should go about doing that as well. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 2 From: JC York Sent: Tuesday, January 23, 2024 2:08 PM To: Shorr, Austin E <Austin.E.Shorr@xcelenergy.com> Cc: ashorr@entrustsol.com; Dan Marshall <dmarshall@enengineering.com> Subject: RE: #698 - CR 25 and CR 46 - Encroachment request Austin — I am sending over some general information for you and once you have received I wanted to discuss further where we can figure out what areas I need to send you information on. Give me a call to discuss once you receive the maps and have a chance to review. Also since we created these maps IHC Scott changed their name to W.W. Clyde & Co. so we will be able to provide updated maps once I have had a chance to discuss more with you. Sorry for the delay in getting back to you. Regards, J.C. J.C. York, P.E. J&T Consulting, Inc. 305 Denver Avenue, Suite D Fort Lupton, CO 80621 Office: (303) 857-6222 Mobile: (970) 222-9530 FAX: (303) 857-6224 From: Shorr, Austin E <Austin.E.Shorr@xcelenergy.com> Sent: Thursday, December 21, 2023 10:21 AM To: JC York <icyork@j-tconsulting.com> Cc: ashorr@entrustsol.com; Dan Marshall <dmarshall@enengineering.com> Subject: RE: #698 - CR 25 and CR 46 - Encroachment request Good morning, I wanted to follow up on the requested information below. Please let me know if you have any questions. Best Regards, Austin E. Shorr Xcel Energy Design Engineer, Contractor for Xcel Energy 9777 Pyramid Court Ste. 300 Englewood, CO 80112 P: Xcel Customer Call line: 720-457-6039 E: Austin.E.ShorrAxcelenergy.com xcelenergy.com/InstallAndConnect 3 Visit our website for more information about installing and connecting service with Xcel Energy. - From: Shorr, Austin E Sent: Thursday, December 7, 2023 11:15 AM To: icyork@j-tconsulting.com Cc: ashorr@entrustsol.com; Dan Marshall <dmarshall@enengineering.com> Subject: #698 - CR 25 and CR 46 - Encroachment request Good morning, Thank you for submitting your encroachment request online. In order for the review process to begin, the following information needs to be included in engineered drawings PDF: 1. The location of the proposed encroachment on the right-of-way and/or easement 2. The edges of the right-of-way or easement 3. The nearest poles, towers, or other PSCo facilities 4. Tied into a section corner (bearing and distance) 5. Where appropriate, roads, streets, streams, creeks, etc. 6. Construction access routes 7. Heaviest tracked and wheeled equipment (Make and Model) if crossing over the pipeline 8. Location of heavy equipment crossing above PSCo gas transmission lines 9. Grading plans (Including temporary cut/fill and permanent grading) 10. Landscaping plans 11. Underground structure dimensions 12. Aboveground structure dimensions 13. Distances from the proposed structures to both the pipeline and ROW 14. Depth of pipeline with SUE Level A quality locates 15. Anticipated construction start date The review process will begin only after all applicable items above have been submitted in a PDF. If there are omissions of applicable items listed above in the engineered drawings, you will be asked to re -submit with the needed information. The high pressure gas engineer that has been assigned to your request is Austin Shorr, contact info below. Best Regards, Austin E. Shorr Xcel Energy Design Engineer, Contractor for Xcel Energy 9777 Pyramid Court Ste. 300 Englewood, CO 80112 P: Xcel Customer Call line: 720-457-6039 E: Austin.E.Shorrgxcelenergy.com xcelenergy.com/InstallAndConnect Visit our website for more information about installing and connecting service with Xcel Energy. - 4 O O N North %4, Section 18, Township 4 North, Range 66 West 3.25" aluminum cap marked PLS 24305 (2011) HAUL ROUTE CONNECTION M N89° 13' 39.08"E 137.902' cz p'oa Xtm°'J Northeast corner, Section 13, Township 4 North, Range 67 West 3.25" aluminum cap marked PLS 31159 (2016) North %4, Section 13, Township 4 North, Range 67 West 3.25" aluminum cap marked PLS 37067 (2017) CO D 0 >- O U LJ '\ HAUL ROUTE FROM PIT TO COUNTY ROAD 46 (-1.0 MILE) / FI 1 HIGHWAY 60 M 025 co ink N N M 0 z d .19.53' EXISTING OVERHEAD POWER LINE(s) (TYP.) 8-- Tlb1- O 01.E 0 0 O J O °2 m d 0 \\ _ Iht rr / 71,4 II 'I i so East %4, Section 13, Township 4 North, Range 67 West 3.25" aluminum cap marked PLS 10855 (1997) ` M/ C) N- Southeast corner, Section 13, Township 4 North, Range 67 West 3.25" aluminum cap marked PLS 16154 (1999) EXISTING POWER POLE LOCATION (TYP.) papn/.9c out opeao/9 Jo Xiteduroo aDirua5.?q , mil_ { N ,/ O a 4,0 II II II �\ 10./46/,1 % e \\ \ II { Y, II / LI / \ IL - E a _ __ _ O Q as z m a)� 0 cn rn CD. co 0 co \ L N CO co En m O z N N -- __ o Ia-+ _vr- ( � I. - --`K r I CO N 71- M z N Lb CO N N M — — — _ _ _ = _ _ — _ _ / �j► 7 NN BERNHARDT SAND AND GRAVEL PIT East %4, Section 24, Township 4 North, Range 67 West 2.5" aluminum cap marked PLS 16154 (1999) O O co O O O O O N O O SCALE IN FEET 305 Denver Avenue - Suite D N CO O U www.j-tconsulting. corn Bernhardt Sand And Grave Exhibit F2 - Reclamation Seeding Map W.W. Clyde & Co. REVISIONS c O o_ •0 U, a) O L U a) O O z J&T Consulting, Inc. Job # 22036 Date 11.27.23 Drawn By TPY Designed By TPY Checked By JCY Fill-IHCS Encroachment Exhibit.dwg Scale As Shown Sheet: 2 Of: 2 r` An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Gas Lines 1. Power Lines 2. ROW 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, W.W. Clyde & Co. (print applicant/company name), by Andy Carpenter (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that Public Service / Xcel Energy (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit File Number M-2023- 025 (operation name), This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant (A). ( 1 oie. ` Representative Name Date STATE O1(j r3 c&c D ) ) ss. 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Is delivey address different from ftem 1? m Yes If YES, enter delivery address below: No • irl 119 c1:1 TH cr ru En 41. m. ode • U.S. Postai Service' CERTIFIED MAIL RECEIPT • Domesiic Mail Only I gin • For delivery information, visit our website at vvww•uspsd.corn°• ite re4.1 LIP tiS • Certified Malt Fee $4 40 Extra Services & Fees (check box, add fee as leppriopf(ate) Return Receipt (hardcopy) $ at' " ri fin le;* Return Receipt (electronic) Certified Mall Restricted Delively Adult Signature Required Adult Signature Restricted Delivery $ Postage TOO Potage and Fees 'preiV c 6 4;3;14. El kot •-?):711, fi a. 4m, Sent T Street an legrft4 Pittet•• 11 it diaii„. II. 111 firm eksiveff °Jill nal GO 11, WO PP Oa, or ,x • OE dr AO 24 10 awl 410 woman al Mk lib Mb im CreL 4.1 ;:.? Postmark r Here gin 'Nk 2 letIVW 2 iqj Vdiatar 9 7-1 rid irt CI Priority Mall Express® Registered tvlaiiTm EI Registered Mdi Restricted Delivery El Signature Conflmiationrm Signature Confirmation Restricted Delivery Domestic Return Receipt ; • 4r ;SI"' 11.011. • rim IN -me OEN pl Ipm, NOD do ad ilom• City, State, ZIP441 ao try PS Form 38600 April 2015 PSN 7530-02-000-9047 See Reverse for Instructions 1044# C,' An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Rail Road 1. ROW 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, W W Clyde & Co. (print applicant/company name), by Andy Carpenter (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that Union Pacific Rail Road (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit (operation name), File Number M-2023- 025 . This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Date w 10/ STATE OF(dl D ) ) ss. COUNTY OF Representative Name Title /41: he for ing was acknowledge before e thiMAlay o as My Commission Expires: Peggy L Sherman NOTARY PUBUC STATE OF COLORADO NOTARY ID 20044011454 ,.'Y COMMISS ON EXFRE$ m nber 30, 22073 223 by e NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Date STATE OF COUNTY OF Name Title The foregoing was acknowledged before me this day of , 20 , by as of Notary Public My Commission Expires: P:\22036 IHC Scott Milliken Property\Drawings\Xref\jt-ihcs milliken base.dwg, Vicinity, 5/18/2023 11:00:48 AM gib • M N CC O. n Y J N. CC HWY60 m • iCR46=- I) r - SITE • 7. • 2000 1000 0 2000 SCALE IN FEET i 4 144100 Iiirg _sr s WCR 46 WCR 46 : , uJ&T Consulting, Inc. 305 Denver Avenue - Suite D Fort Lupton, CO 80621 303-857-6222 IHC Scott Bernhardt Sand and Gravel Pit Exhibit B - Index Map Date: 5.18.23 Job No: 22036 Drawn: TPY Scale: 1" = 2000' Sheet: 1 Of: 1 lE OE / // / ,/ , D C N N 1/4 // cp i �— 0L OE a / i MW -1 ; / / LAT: N40.303936 �'' / / LONG: W104.834394 / yCE %r' --OE j / 4 734/ //3 / / / / / //473 / i/ S / / • 1 / PDC ENERGY, INC. OIL/GAS WELL "JOHNNY 1" PLUGGED AND ABANDONED UNION PACIFIC RAILROAD RAIL LINES CURETON/GILCREST MIDSTREAM OIL/GAS LINE (DISCONNECTED) MW -3 LAT: N40.301151 LONG: W104.838891 W.W. CLYDE/HIDDEN PLATTE RANCH FENCE PDC ENERGY, INC. OIL/GAS WELL "JENNIFER 1" PLUGGED AND ABANDONED CURETON/GILCREST MIDSTREAM // OIL/GAS LINE (DISCONNECTED)/ / W.W. CLYDE DIRT ROAD / 4 723 / ;1 I I PUBLIC SERVICE COMPA POWER POLES/LINES / A 225' (Rec. No. 1537418 & 1539251) OE XCEL ENERGY OIL/GAS LINE / / / / / / OE G 7 _ csbE OE -- G-- \-\\N‘\ I' CHEVRON/ ♦ ` /// I NOBLE MIDSTREAM ♦ `� OIL/GAS LINE PDC ENERGY, INC. OIL/GAS WELL "KRISTIN 1" PLUGGED AND ABANDONED W.W. CLYDE ELECTRIC (ABANDONED) c/ / / / / / / PDC ENERGY, INC. OIL/GAS WELL / "BERNHARDT 24C" PLUGGED AND ABANDONED DCP MIDSTREAM OIL/GAS LINE TO BE RELOCATED OUTSIDE OF MINING AREA CURETON/GILCREST MIDSTREAM OIL/GAS LINE (ABANDONED) CHEVRON/ NOBLE MIDSTREAM OIL/GAS LINE DCP MIDSTREAM OIL/GAS LINE MW -2 LAT: N40.301374 LONG: W104.830132 CURETON/GILCREST MIDSTREAM OIL/GAS LINE CURETON/GILCREST MIDSTREAM OIL/GAS LINE (ABANDONED) PDC ENERGY, INC. OIL/GAS WELL "SARAH 1" PLUGGED AND ABANDONED 400FT (MIN.) SETBACK FROM RIVER W.W. CLYDE/HIDDEN FENCE 4725 W.W. CLYDE WATER PUMPS MW -4 LAT: N40.297684 LONG: W104.834826 PLATTE NCH DCP MIDS KEAM OIL/GAS INE // "/ C B EDGE OF 1Q` RIVER Q� OJ LEGEND: 5280 OE 71) G EXISTING CONTOURS PROPERTY LINE EXISTING FENCE EXISTING ROADS EXISTING OVERHEAD ELECTRIC EXISTING UNDERGROUND ELECTRIC EXISTING POWER POLE EXISTING OIL/GAS LINE EXISTING RIGHT-OF-WAY A PROPERTY OWNERS WITHIN 200 FEET MAP ID NAME/ADDRESS ASSESSORS ID NO. A PUBLIC SERVICE COMPANY OF COLORADO 105924000019 TAX SERVICE DEPARTMENT PO BOX 1979 DENVER, CO 80201-1979 B HALFLIGHT LAND & MINERALS, LLC 4420 SUMAC LANE LITTLETON, CO 80123-2743 C HIDDEN PLATTE RANCH, LLC PO BOX 331 MILLIKEN, CO 80543-0331 D CHERYL KASTEN KAREN CURRIER CARLENE STROH 511 N SHOLDT DRIVE PLATTEVILLE, CO 80651 -7583 VEGETATION: 105729100002 105924000039 105924000036 ALL AREAS WITHIN THE PERMIT BOUNDARY ARE CURRENTLY AGRICULTURAL CROP AND PASTURE LAND. NOTE: W.W. CLYDE & CO. IS THE SURFACE AND SUBSURFACE OWNER WITHIN THE PERMIT AREA. SECTION LINE EXISTING 100 YR FLOODPLAIN EXISTING 100 YR FLOODWAY PERMIT BOUNDARY MINING LIMIT SLURRY WALL STOCKPILE AREA PROPERTY OWNER MAP ID • C' Dmt 305 Denver Avenue - Suite D N c0 E co N O O9..' U Lr`i; co c O M 0 Q J o_ O u_ F. Bernhardt Sand And Grave c O) C N U X w W.W. Clyde & Co. REVISIONS 0 .Q 0 a, O O a) nz O 0 z J&T Consulting, Inc. Job # 22036 Date 11.27.23 Drawn By Designed By Checked By TPY TPY JCY File JT-IHCS Bernhardt Mining.dwg 200 100 0 200 400 600 SCALE IN FEET Scale As Shown Sheet: 1 Of: 2 OE� (1E - OE I iI II I I / `)-OE a 7.. • MW -3 LAT: N40.301151 LONG: W104.838891 1/4 ��.�� ..�! ' • - - _ — I!� / / ;I I l; III MW -1 LAT: N40.303936 LONG: W104.834394 E CE`f— 1 -- --mud --mm 7- •••\4-1 ,,/ I . ii //, 30 FT WIDE ACCESS ROAD 50 FT WIDE AESS, SCALE, TARPI ROAD CLEARWATER POND FOR RECYCLE WATER TO WASH PLANT SEDIMENT POND FOR WASH WATER FROM PLANT SCALE HOUSE AND SCALE PROCESSING AND PRODUCT STOCKPILES 4725 / / / / .> // / lip 4723 / / / / OE OE -mot OE / / G f / / OE G _ a DIRECTION OF MINING / 400FT (MIN.) SETBACK FROM RIVER DIRECTION OF MINING MW -4 LAT: N40.297684 LONG: W104.834826 PERMIT AREA = 111.01 AC MINING AREA = 98.24 AC 225' (Rec. No. 1537418 & 1539251) OFFSITE ACCESS ROAD / Q csbE OE -- G-- DIRECTION OF MINING MW -2 LAT: N40.301374 LONG: W104.830132 DEWATERING TRENCH ' /i //k/ • ,/9//// N 4719 \ EDGE !</ OF , RIVER (</N - ,,,v.. OJ LEGEND: 5280 OE E G EDGE OF RIVER PERMIT BOUNDARY EXISTING GROUND EXISTING CONTOURS PROPERTY LINE EXISTING FENCE EXISTING ROADS EXISTING OVERHEAD ELECTRIC EXISTING UNDERGROUND ELECTRIC EXISTING POWER POLE EXISTING OIL/GAS LINE EXISTING RIGHT-OF-WAY VARIES 400FT (MIN.) 15' A SECTION LINE EXISTING 100 YR FLOODPLAIN EXISTING 100 YR FLOODWAY PERMIT BOUNDARY MINING LIMIT SLURRY WALL STOCKPILE AREA PROPERTY OWNER MAP ID TS/OB SLURRY WALL 2 SAND AND GRAVEL - 4' BEDROCK TYPICAL MINING SECTION N.T.S. 5' F DEWATERING TRENCH 013 305 Denver Avenue - Suite D (71 co up 0 F. Bernhardt Sand And Grave Exhibit C2 - Mining Plan Map W.W. Clyde & Co. REVISIONS 0 co 0 J&T Consulting, Inc. Job # 22036 Date 11.27.23 Drawn By Designed By Checked By TPY TPY JCY File JT-IHCS Bernhardt Mining.dwg 200 100 200 400 600 SCALE IN FEET Scale As Shown Sheet: 2 Of: An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Fence/Property Line 1. Stored Materials 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, Clyde & Co. (print applicant/company name), by Andy Carpenter (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that Hidden Platte Ranch, LLC (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit (operation name), File Number M-2023-025 - This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Date iol3/ava3 STATE Ol�0571) ) ss. COUNTY °Fed G } he fore.ging was acknowledged before me thi a Notary ' u Peggy L Sherman NOTARY PUBLIC STATE OF COLORADO NOTARY JD 20044011484 C7s.1,141 c HH EXPI.AES Decle tuber 30.2023 Representative Name Title 46f r4A-,.6•4--Fir'erde5 My Commission Expires: 0 -- */a72.,9-- - NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Date STATE OF COUNTY OF Name Title The foregoing was acknowledged before me this day of , 20 , by as of Notary Public My Commission Expires: An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Fence/Property Line 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, W.W• Clyde & Co. by Andy Carpenter (print representative's name), as Area Manager, Aggregates (print representative's title), does hereby certify that Ha!flight Land & Minerals, LLC (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation (print applicant/company name), Permit Application for Bernhardt Sand and Gravel Pit File Number M-2023-025 . (operation name), This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant tJ, W � 4' a Representative Name Date /e7/3/6) Title Al , �A STATE oFdo'Qc ) ss. COUNTY OFIA304_) he ores * -ng was acknowledgel before we thisYday of as ra& ()_11 G_� a i of d rJ No . is Peggy L Shertnart NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20044011484 MY COMMISSION DtPIRES December 30. 2023 My Commission Expires: NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Date STATE OF COUNTY OF Name Title The foregoing was acknowledged before me this day of , 20 , by as of Notary Public My Commission Expires: An example Structure Agreement which meets the requirements of the Statutes is shown below. ************************************************************************************* Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 & Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board ("Board") has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. § 34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. § 34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Fence/Property Line 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, W.W. Clyde & Co. (print applicant/company name), by Andy Carpenter (print representative's name), as Area Manager, Aggregates (print M. Cheryl Kasten, M , Karen Currier, Ms. Carlene Stroh (structure owner) shall representative's title), does hereby certify that be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for Bernhardt Sand and Gravel Pit File Number M-2023- 025 (operation name), This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant (A -1.W 6-/--1O4—' Date STATE OFC O, -6,A .4--) ) ss. Representative Name Title ArcEd Hi+�,C cJ jr 5 The fore ding was acknowledged before me thisday of �. , 2��, by Aas,re-1 ! of My Commission Expires:17 Peggy L Sherman NOTARY PUBLIC STATE OF COLORADO NOTARY ID 20044011484 `,I T C0MM1SS ON EXPIRES 'December 30. 2023 NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Date STATE OF COUNTY OF Name Title The foregoing was acknowledged before me this day of , 20 , by as of Notary Public My Commission Expires: SLOPE STABILITY REPORT FOR THE BERNHARDT SAND AND GRAVEL PIT WELD COUNTY, COLORADO MAY 2023 REVISED JANUARY 2024 PREPARED FOR: 10303 EAST DRY CREEK ROAD, #300 ENGLEWOOD, CO 80112 (303) 790-9100 PREPARED BY: JT J&T Consulting, Inc. 305 DENVER AVENUE - SUITE D FORT LUPTON, CO 80621 PHONE: 303-857-6222 CERTIFICATION: I hereby certify this slope stability analysis for W.W. Clyde & Co. the Bernhardt Sand and Gravel 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. VWV Clyde & Co. — Bernhardt Sand and Gravel 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 Boring and Monitoring Well Logs Appendix E USGS Map, Oct. 2002 revision — "Peak Acceleration (%g) with a 2% Probability of Exceedance in 50 yrs" J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page ii INTRODUCTION W.W. Clyde & Co. (WW Clyde), proposes to mine the property located in the northeast 1/4 of Section 24, Township 4 North, Range 67 West of the 6th Principal Meridian, in Weld County, Colorado. The property is bounded by the private property on all sides, with the South Platte River being adjacent to the southeast boundary of the property. 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 to the structure. 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 effects 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 a single pit, and reclaimed as a water storage reservoir. The mining will occur at 2H:1V slopes. The reservoir will be reclaimed by backfilling the mining slopes with overburden/clay soils at 4.5H:1V slopes, and will cover an estimated 88.88 surface acres when full. The actual surface area will depend on the final configuration of the reservoir after reclamation is complete. GEOTECHNICAL DATA Exploratory borings and monitoring wells were done on the site by Cesare Inc./CMT Technical Services. Logs of the borings and monitoring wells used to estimate the soil types and thicknesses for this study are included in Appendix D. J&T Consulting, Inc. (JT) estimated soil strength parameters based on the information from the boring and monitor well logs and other stability analyses that have been performed on gravel mining operations along the Front Range as well as recommendations from Cesare/CMT. 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. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page 1 Table 1 — Soil Properties Description Max dry density (pcf) Saturated Density (pcf) Cohesion (psf) Internal Friction Angle Clay 100 115 50 25 Sand and Gravel 115 130 10 35 Weathered Sandstone Bedrock 105 115 1000 0 Weathered Claystone Bedrock 110 120 1000 0 Stable Sandstone Bedrock 115 128 3000 0 Stable Claystone Bedrock 120 135 3000 0 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 7.2. 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, five 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. The USGS peak acceleration map is included in Appendix E. 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 2H:1V, and all reclaimed slopes will be 4.5H:1V. The locations of the cases are shown on the case location map included in Appendix A. Case SS -1 — Gas Line West of Pit. The mining operation is adjacent to a gas line on the west side of the pit. The proposed setback for mining is 53 feet from the gas line. The mining depth was assumed to be 38 feet in this area based on bore log information. J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page 2 Case SS -2 — Gas Line North of Pit. The mining operation is adjacent to a gas line on the north side of the pit. The proposed setback for mining is 91 feet from the power poles/lines. The mining depth was assumed to be 34 feet in this area based on bore log information. Case SS -3 — Gas Line Northeast of Pit. The mining operation is adjacent to a gas line on the northeast side of the pit. The proposed setback for mining is 61 feet from the gas line. The mining depth was assumed to be 34 feet in this area based on bore log information. Case SS -4 — Gas Line East of Pit. The mining operation is adjacent to a gas line on the east side of the pit. The proposed setback for mining is 46 feet from the gas line. The mining depth was assumed to be 35 feet in this area based on bore log information. Case SS -5 — Gas Line South of Pit The mining operation is adjacent to a gas line on the south side of the pit. The proposed setback for mining is 45 feet from the irrigation ditch bank. The mining depth was assumed to be 36 feet in this area based on bore log information. The cross -sections located in Appendix B show the estimated phreatic surface associated with each case, the geometry used in the mining/reclamation, and the locations of the man-made structures adjacent to the mining slopes. 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. All cases were analyzed using mining condition geometry to determine the factor of safety for each case with the steeper mining slopes. Case SS -5, which is the location that is closest to a critical structure (45 feet from the gas line), was analyzed to determine the minimum factor of safety for all reclaimed slopes. J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page 3 SLOPE STABILITY RESULTS When estimated soil strength parameters are used, 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. The results of the static condition and pseudo -static condition slope stability analyses are shown in Tables 2, 3, & 4 below. Table 2: Mining Conditions Static Condition Slope Stability Analysis Results Calculated Factor Required Minimum Factor of Description of Safety Safety Case SS -1 — Gas Line West of Pit — Static 2.03 1.50 Case SS -2 — Gas Line North of Pit — Static 2.14 1.50 Case SS -3 — Gas Line Northeast of Pit — Static 2.08 1.50 Case SS -4 — Gas Line East of Pit — Static 2.21 1.50 Case SS -5 — Gas Line South of Pit — Static 2.14 1.50 Table 3: Mining Conditions Pseudo -Static Condition Slope Stability Analysis Results Calculated Factor Required Minimum Factor of Description of Safety Safety Case SS -1 — Gas Line West of Pit — EQ 1.61 1.30 Case SS -2 — Gas Line North of Pit — EQ 1.55 1.30 Case SS -3 — Gas Line Northeast of Pit — EQ 1.59 1.30 Case SS -4 — Gas Line East of Pit — EQ 1.73 1.30 Case SS -5 — Gas Line South of Pit — EQ 1.70 1.30 Table 3: Reclaimed Conditions Static & Pseudo -Static Condition Slope Stability Analysis Results Description Calculated Factor of Safety Required Minimum Factor Of Safety Case SS -5 — Gas Line West of Pit — Static 2.41 1.50 Case SS -5 — Gas Line West of Pit — EQ 1.72 1.30 The Galena analysis output files are included in Appendix C for all cases. J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page 4 CONCLUSIONS AND RECOMMENDATIONS Mining Conditions: Case SS -1 — At a setback of 53 feet, the lowest resulting static condition safety factor of 2.01 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The lowest resulting pseudo -static condition safety factor of 1.61 exceeds the MLRB minimum requirement of 1.30 for an embankment adjacent to a critical structure subject to earthquake loading. The proposed setback of 53 feet from the gas line is satisfactory. Case SS -2 — At a setback of 91 feet, the lowest resulting static condition safety factor of 2.14 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The lowest resulting pseudo -static condition safety factor of 1.55 exceeds the MLRB minimum requirement of 1.30 for an embankment adjacent to a critical structure subject to earthquake loading. The proposed setback of 91 feet from the gas line is satisfactory. Case SS -3 — At a setback of 61 feet, the lowest resulting static condition safety factor of 2.08 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The lowest resulting pseudo -static condition safety factor of 1.59 exceeds the MLRB minimum requirement of 1.30 for an embankment adjacent to a critical structure subject to earthquake loading. The proposed setback of 61 feet from the gas line is satisfactory. Case SS -4 — At a setback of 46 feet, the lowest resulting static condition safety factor of 2.21 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The lowest resulting pseudo -static condition safety factor of 1.73 exceeds the MLRB minimum requirement of 1.30 for an embankment adjacent to a critical structure subject to earthquake loading. The proposed setback of 46 feet from the gas line and lift station is satisfactory. Case SS -5 — At a setback of 45 feet, the lowest resulting static condition safety factor of 2.14 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The lowest resulting pseudo -static condition safety factor of 1.70 exceeds the MLRB minimum requirement of 1.30 for an embankment adjacent to a critical structure subject to earthquake loading. The proposed setback of 45 feet from the gas line is satisfactory. J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page 5 CONCLUSIONS AND RECOMMENDATIONS (Continued) Reclaimed Conditions: Case SS -5 — At a setback of 45 feet, the lowest resulting static condition safety factor of 2.41 exceeds the MLRB minimum requirement of 1.50 for an embankment adjacent to a critical structure. The lowest resulting pseudo -static condition safety factor of 1.72 exceeds the MLRB minimum requirement of 1.30 for an embankment adjacent to a critical structure subject to earthquake loading. The proposed setback of 45 feet from the gas line is satisfactory. J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page 6 The following recommendations for monitoring of slope stability should be followed: 1. 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. 2. 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. 3. 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. 4. 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. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Page 7 APPENDIX A J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis OE OE OE 0 OE OE OE OED // / DES DoE 1— OE D DE DE /kJ,PL/ OE OE 40E OE / OE OE OE OE OE OE t _ MW -3 • /.r OE OE OE -- Tr; l,t1:\\)\Hi\IIIX\r\IIII://,:\//''' VV\\\\lII 1 III 1 �1 \ 1 \\1 I I \ \ 1 \\1 1 ilk I1111\ II IV 1 11 II 1 11 1 MW_2 T 11l �1'I . I� / I O / � X115 j'/ /�I 11i1 11 / // 1 � /11 1)/e 7 ///yI 9/1 i // ,// v f %'7" //' I,/ril // ' -, // /'/ / t t / , / / // 17 ti4i/ il G____ _ _ ..,_,„4//r/ I/ J z Bernhardt Sand and Gravel Pit Slope Stability Case Location Map W.W. Clyde & Co. REVISIONS 0 z Job a 22036 Date 2.27.24 Drawn By TPY Designed By TPY Checked By JCY Hie JT Bernhardt SS Scale 1" = 150' Sheet: O0 1 APPENDIX B J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Mining Conditions J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Material Keys 1: Sand and Gravel (c:10 0:35 g:115) 4820 4800 4780 4760 4740 4720 4700 4680 4660 4640 4620 4600 4580 0 50 100 150 200 250 300 GALENA Version 7.2 Licensed to: J & T Consulting Sat D 2: Weathered Claystoe Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -1 - Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS1.gmf Sat D Sat D 2.03 Edited: 23 Feb 2024 Processed: 23 Feb 2024 I id' ber I insulting, Inc, Material Keys 1: Sand and Gravel (c:10 0:35 g:115) 4820 4800 4780 4760 4740 4720 4700 4680 4660 4640 4620 4600 4580 0 50 100 150 200 250 300 GALENA Version 7.2 Licensed to: J & T Consulting Sat D 2: Weathered Claystone Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -1 - Pseudo -Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS1-EQ.gmf Sat D Sat D 1.61 Edited: 27 Jan 2024 Processed: 23 Feb 2024 I id' ber I insulting, Inc, Material Keys 4850 4800 4750 4700 4650 4600 4550 0 50 100 150 200 250 300 350 400 GALENA Version 7.2 Licensed to: J & T Consulting 1: Sand and Gravel (c:10 0:35 g:115) 2: Weathered Sandstone Bedrock (c:1000 0:0 g:105) Sat D 3: Stable Sandstone Bedrock (c:3000 0:0 g:115) Sat D 4: Slurry Wall (c:0 0:45 g:100) Sat D 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -2 - Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS2.gmf Sat D Sat D 2.14 Edited: 27 Jan 2024 Processed: 23 Feb 2024 I id' ber I insulting, Inc, Material Keys 4850 4800 4750 4700 4650 4600 4550 0 50 100 150 200 250 300 350 400 GALENA Version 7.2 Licensed to: J & T Consulting 1: Sand and Gravel (c:10 0:35 g:115) 2: Weathered Sandstone Bedrock (c:1000 0:0 g:105) Sat D 3: Stable Sandstone Bedrock (c:3000 0:0 g:115) Sat D 4: Slurry Wall (c:0 0:45 g:100) Sat D 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -2 - Pseudo -Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS2-EQ.gmf Sat D Sat D 1.55 Edited: 27 Jan 2024 Processed: 23 Feb 2024 I id' ber I insulting, Inc, Material Keys 1: Sand and Gravel (c:10 0:35 g:115) 4850 4800 4750 4700 4650 4600 4550 0 50 100 150 200 250 300 350 GALENA Version 7.2 Licensed to: J & T Consulting Sat D 2: Weathered Claystone Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -3 - Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS3.gmf Sat D Sat D 2.08 Edited: 28 Jan 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, Material Keys 1: Sand and Gravel (c:10 0:35 g:115) 4850 4800 4750 4700 4650 4600 4550 0 50 100 150 200 250 300 350 GALENA Version 7.2 Licensed to: J & T Consulting Sat D 2: Weathered Claystoe Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -3 - Pseudo -Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS3-EQ.gmf Sat D Sat D 1.59 Edited: 28 Jan 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, Material Keys 4820 4800 4780 4760 4740 4720 4700 4680 4660 4640 4620 4600 4580 0 50 100 150 200 250 300 GALENA Version 7.2 Licensed to: J & T Consulting 1: Sand and Gravel (c:10 0:35 g:115) 2: Weathered Sandstone Bedrock (c:1000 0:0 g:105) Sat D 3: Stable Sandstone Bedrock (c:3000 0:0 g:115) Sat D 4: Slurry Wall (c:0 0:45 g:100) Sat D 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Sat D Sat D Results Critical Factor of Safety: 2.21 Project Bernhardt Sand and Gravel Pit Case SS -4 - Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS4.gmf Edited: 28 Jan 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, Material Keys 4820 4800 4780 4760 4740 4720 4700 4680 4660 4640 4620 4600 4580 0 50 100 150 200 250 300 GALENA Version 7.2 Licensed to: J & T Consulting 1: Sand and Gravel (c:10 0:35 g:115) 2: Weathered Sandstone Bedrock (c:1000 0:0 g:105) Sat D 3: Stable Sandstone Bedrock (c:3000 0:0 g:115) Sat D 4: Slurry Wall (c:0 0:45 g:100) Sat D 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -4 - Pseudo -Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS4-EQ.gmf Sat D Sat D 1.73 Edited: 28 Jan 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, Material Keys 1: Sand and Gravel (c:10 0:35 g:115) 4850 4800 4750 4700 4650 4600 4550 0 50 100 150 200 250 300 350 GALENA Version 7.2 Licensed to: J & T Consulting Sat D 2: Weathered Claystone Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -5 - Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5.gmf Sat D Sat D 2.14 Edited: 28 Jan 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, Material Keys 1: Sand and Gravel (c:10 0:35 g:115) 4850 4800 4750 4700 4650 4600 4550 0 50 100 150 200 250 300 350 GALENA Version 7.2 Licensed to: J & T Consulting Sat D 2: Weathered Claystone Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -5 - Pseudo -Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5-EQ.gmf Sat D Sat D 1.70 Edited: 28 Jan 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, Reclamation Conditions J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Material Keys 1: Sand and Gravel (c:10 0:35 g:115) Sat D 4850 4800 4750 4700 4650 4600 4550 45 ft F 5 0 50 100 150 200 250 300 350 GALENA Version 7.2 Licensed to: J & T Consulting 2: Weathered Claystone Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Sat D Sat D Results Critical Factor of Safety: 2.41 Project Bernhardt Sand and Gravel Pit Case SS -5 - Reclamation - Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5-REC.gmf Edited: 24 Feb 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, Material Keys 1: Sand and Gravel (c:10 0:35 g:115) Sat D 4850 4800 4750 4700 4650 4600 4550 0.070 4- 45 ft F 5 0 50 100 150 200 250 300 350 GALENA Version 7.2 Licensed to: J & T Consulting 2: Weathered Claystone Bedrock (c:1000 0:0 g:110) Sat D 3: Stable Claystone Bedrock (c:3000 0:0 g:120) Sat D 4: Slurry Wall (c:0 0:45 g:100) 5: Clay (c:50 0:25 g:100) Analysis 1 Multiple Stability Analysis Method: Bishop Simplified Surface: Circular Results Critical Factor of Safety: Project Bernhardt Sand and Gravel Pit Case SS -5 - Reclamation - Pseudo -Static File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5-REC-EQ.gmf Sat D Sat D 1.72 Edited: 28 Jan 2024 Processed: 24 Feb 2024 I id' ber I insulting, Inc, APPENDIX C J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Mining Conditions J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS1.gmf Processed: 23 Feb 2024 09:42:28 DATA: Analysis 1 - Case SS -1 - Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystoe Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 120.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4728.00 300.00 4728.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4720.40 229.70 4720.40 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 229.70 4724.70 Profile: 4 (2 points) 232.70 4720.40 Profile: 5 (3 points) 0.00 4686.00 Profile: 6 (2 points) 232.70 4685.50 Profile: 7 (4 points) 0.00 4683.00 Slope Surface (8 points) 0.00 4686.00 4724.60 269.40 4724.80 232.70 4724.70 Material beneath: 1 - Sand and Gravel 300.00 4720.40 Material beneath: 2 - Weathered Claystoe Bedrock 138.60 4685.70 229.70 4685.50 Material beneath: 2 - Weathered Claystoe Bedrock 300.00 4685.40 Material beneath: 3 - Stable Claystone Bedrock 138.60 4682.70 229.70 4682.50 Phreatic Surface (5 points) 0.00 4716.80 Failure Surface 4686.00 138.60 4685.70 284.00 4726.90 138.60 4685.70 216.20 300.00 229.70 4724.50 4727.00 4685.50 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 138.00 YL: 4685.70 XR: 274.40 YR: Centre: XC: 153.81 YC: 4885.08 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 150.00 20 20 50 RESULTS: Analysis 1 - Case SS -1 - Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.554 Analysis Summary 300.00 229.70 4682.40 4724.60 232.70 4716.80 4725.52 200.00 232.70 300.00 There were: 18041 successful analyses from a total of 20001 trial failure surfaces 1960 analyses terminated due to unacceptable geometry 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 1 143.00 4687.90 273.08 4725.33 178.98 4807.61 125.00 2.032 <-- Critical Surface 2 143.00 4687.90 275.19 4725.63 179.44 4810.67 128.06 2.034 3 143.00 4687.90 277.29 4725.94 179.90 4813.72 131.12 2.039 4 142.47 4687.64 271.51 4725.10 177.60 4807.60 125.00 2.041 5 141.95 4687.37 269.93 4724.88 176.21 4807.59 125.00 2.043 6 143.00 4687.90 279.40 4726.24 180.36 4816.78 134.18 2.044 7 142.47 4687.64 273.61 4725.41 178.05 4810.66 128.06 2.044 8 143.00 4687.90 272.56 4725.25 178.62 4807.72 125.00 2.044 9 143.00 4687.90 274.66 4725.56 179.07 4810.78 128.06 2.048 10 142.47 4687.64 270.98 4725.03 177.23 4807.71 125.00 2.051 11 143.00 4687.90 276.77 4725.86 179.54 4813.83 131.12 2.051 12 142.47 4687.64 273.08 4725.33 177.69 4810.76 128.06 2.053 13 141.95 4687.37 269.40 4724.80 175.84 4807.69 125.00 2.054 14 143.00 4687.90 278.87 4726.16 180.00 4816.88 134.18 2.054 15 142.47 4687.64 275.19 4725.63 178.15 4813.81 131.12 2.055 16 143.00 4687.90 272.03 4725.18 178.25 4807.83 125.00 2.056 17 141.95 4687.37 271.51 4725.10 176.29 4810.74 128.06 2.059 18 141.95 4687.37 275.72 4725.71 177.22 4816.84 134.18 2.060 19 143.00 4687.90 274.14 4725.48 178.71 4810.88 128.06 2.060 20 142.47 4687.64 270.45 4724.95 176.86 4807.81 125.00 2.060 21 141.95 4687.37 273.61 4725.41 176.76 4813.79 131.12 2.061 22 141.42 4687.11 269.93 4724.88 174.90 4810.72 128.06 2.062 23 142.47 4687.64 277.29 4725.94 178.62 4816.86 134.18 2.062 24 142.47 4687.64 275.72 4725.71 178.51 4813.71 131.12 2.062 25 143.00 4687.90 276.24 4725.78 179.17 4813.93 131.12 2.063 26 142.47 4687.64 279.40 4726.24 179.09 4819.91 137.24 2.064 27 142.47 4687.64 272.56 4725.25 177.32 4810.87 128.06 2.064 28 141.95 4687.37 277.82 4726.01 177.70 4819.88 137.24 2.066 29 143.00 4687.90 278.35 4726.09 179.64 4816.98 134.18 2.066 30 141.42 4687.11 272.03 4725.18 175.36 4813.77 131.12 2.066 31 141.42 4687.11 276.24 4725.78 176.30 4819.85 137.24 2.067 32 143.00 4687.90 271.51 4725.10 177.89 4807.93 125.00 2.067 33 142.47 4687.64 274.66 4725.56 177.78 4813.92 131.12 2.068 34 141.42 4687.11 274.14 4725.48 175.83 4816.81 134.18 2.069 35 142.47 4687.64 276.77 4725.86 178.25 4816.96 134.18 2.070 36 142.47 4687.64 269.93 4724.88 176.50 4807.92 125.00 2.070 37 140.89 4686.85 270.45 4724.95 173.96 4813.73 131.12 2.071 38 143.00 4687.90 273.61 4725.41 178.35 4810.99 128.06 2.071 39 141.42 4687.11 278.35 4726.09 176.78 4822.89 140.31 2.072 40 141.42 4687.11 269.40 4724.80 174.53 4810.82 128.06 2.072 41 141.95 4687.37 273.08 4725.33 176.39 4813.89 131.12 2.072 42 142.47 4687.64 278.87 4726.16 178.73 4820.01 137.24 2.073 43 141.95 4687.37 270.98 4725.03 175.93 4810.85 128.06 2.074 44 140.89 4686.85 272.56 4725.25 174.43 4816.77 134.18 2.074 45 143.00 4687.90 275.72 4725.71 178.81 4814.04 131.12 2.075 46 141.95 4687.37 275.19 4725.63 176.86 4816.94 134.18 2.075 47 142.47 4687.64 272.03 4725.18 176.95 4810.97 128.06 2.075 48 141.95 4687.37 272.03 4725.18 176.66 4810.64 128.06 2.075 49 141.95 4687.37 277.29 4725.94 177.33 4819.98 137.24 2.077 50 143.00 4687.90 277.82 4726.01 179.28 4817.09 134.18 2.078 51 143.00 4687.90 270.98 4725.03 177.52 4808.04 125.00 2.078 52 141.95 4687.37 279.40 4726.24 177.82 4823.02 140.31 2.078 53 142.47 4687.64 274.14 4725.48 177.42 4814.02 131.12 2.079 54 141.95 4687.37 270.45 4724.95 175.56 4810.95 128.06 2.079 55 141.42 4687.11 273.61 4725.41 175.46 4816.90 134.18 2.079 56 142.47 4687.64 269.40 4724.80 176.13 4808.02 125.00 2.080 57 140.89 4686.85 269.93 4724.88 173.59 4813.83 131.12 2.080 58 141.42 4687.11 271.51 4725.10 174.99 4813.86 131.12 2.080 59 141.42 4687.11 275.72 4725.71 175.94 4819.94 137.24 2.081 60 142.47 4687.64 276.24 4725.78 177.89 4817.06 134.18 2.081 61 143.00 4687.90 273.08 4725.33 177.98 4811.09 128.06 2.082 62 141.42 4687.11 277.82 4726.01 176.42 4822.98 140.31 2.082 63 143.00 4687.90 275.19 4725.63 178.45 4814.14 131.12 2.083 64 141.95 4687.37 272.56 4725.25 176.02 4813.99 131.12 2.083 65 142.47 4687.64 278.35 4726.09 178.36 4820.11 137.24 2.084 66 142.47 4687.64 277.82 4726.01 178.98 4816.76 134.18 2.085 67 141.95 4687.37 274.66 4725.56 176.49 4817.03 134.18 2.086 68 141.42 4687.11 270.98 4725.03 174.63 4813.96 131.12 2.086 69 140.89 4686.85 274.14 4725.48 174.54 4819.91 137.24 2.086 70 140.89 4686.85 272.03 4725.18 174.06 4816.87 134.18 2.087 71 140.89 4686.85 276.24 4725.78 175.02 4822.94 140.31 2.088 72 141.95 4687.37 276.77 4725.86 176.97 4820.08 137.24 2.088 73 140.89 4686.85 278.35 4726.09 175.50 4825.97 143.37 2.089 74 143.00 4687.90 277.29 4725.94 178.92 4817.19 134.18 2.089 75 140.37 4686.58 270.45 4724.95 172.66 4816.83 134.18 2.089 76 141.42 4687.11 273.08 4725.33 175.10 4817.00 134.18 2.089 77 141.95 4687.37 278.87 4726.16 177.45 4823.11 140.31 2.090 78 141.42 4687.11 275.19 4725.63 175.57 4820.04 137.24 2.091 79 143.00 4687.90 279.40 4726.24 179.39 4820.23 137.24 2.092 80 141.42 4687.11 277.29 4725.94 176.05 4823.08 140.31 2.093 81 141.95 4687.37 269.93 4724.88 175.19 4811.04 128.06 2.093 82 141.42 4687.11 279.40 4726.24 176.54 4826.11 143.37 2.094 83 140.37 4686.58 272.56 4725.25 173.13 4819.86 137.24 2.095 84 142.47 4687.64 271.51 4725.10 176.59 4811.07 128.06 2.095 85 140.89 4686.85 269.40 4724.80 173.22 4813.92 131.12 2.096 86 141.42 4687.11 270.45 4724.95 174.26 4814.06 131.12 2.096 87 143.00 4687.90 272.56 4725.25 177.62 4811.19 128.06 2.097 88 141.95 4687.37 272.03 4725.18 175.66 4814.09 131.12 2.098 89 142.47 4687.64 275.72 4725.71 177.52 4817.16 134.18 2.098 90 143.00 4687.90 270.45 4724.95 177.16 4808.14 125.00 2.098 91 142.47 4687.64 273.61 4725.41 177.05 4814.12 131.12 2.098 92 142.47 4687.64 270.98 4725.03 176.22 4811.17 128.06 2.099 93 142.47 4687.64 273.08 4725.33 176.69 4814.22 131.12 2.099 94 141.42 4687.11 272.56 4725.25 174.73 4817.09 134.18 2.099 95 141.95 4687.37 269.40 4724.80 174.82 4811.14 128.06 2.100 96 143.00 4687.90 274.66 4725.56 178.08 4814.24 131.12 2.100 97 143.00 4687.90 269.93 4724.88 176.79 4808.25 125.00 2.100 98 140.89 4686.85 271.51 4725.10 173.69 4816.96 134.18 2.100 99 141.95 4687.37 276.24 4725.78 176.61 4820.17 137.24 2.100 Critical Failure Surface (circle 1) Intersects: XL: 143.00 YL: 4687.90 Centre: XC: 178.98 YC: 4807.61 Generated failure surface: (20 points) 143.00 4687.90 150.27 4685.95 4682.77 180.13 4682.61 187.65 4682.91 4686.50 217.15 4688.58 224.24 4691.09 4701.12 250.74 4705.25 256.77 4709.76 4725.33 XR: 273.08 YR: 4725.33 Radius: R: 125.00 157.65 4684.44 165.10 4683.38 195.14 4683.66 202.57 4684.85 231.17 4694.03 237.92 4697.37 262.52 4714.62 267.96 4719.81 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) 172.60 209.91 244.45 273.08 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 143.00 5.07 -15.0 3.64 3.76 1 10.00 35.0 583.62 0.00 178.33 1.14 2 146.64 15.22 -15.0 3.64 3.76 1 10.00 35.0 1750.65 0.00 532.00 1.14 3 150.27 8.31 -11.6 1.37 1.40 1 10.00 35.0 955.81 0.00 751.62 1.10 4 151.64 22.84 -11.6 3.00 3.06 2 1000.00 0.0 2630.81 58.08 976.85 1.02 5 154.64 29.19 -11.6 3.00 3.06 2 1000.00 0.0 3370.08 174.13 1223.08 1.02 6 157.65 44.62 -8.1 3.73 3.76 2 1000.00 0.0 5159.02 346.55 1454.66 1.01 7 161.37 53.54 -8.1 3.73 3.76 2 1000.00 0.0 6194.56 469.24 1732.52 1.01 8 165.10 62.48 -4.7 3.75 3.76 2 1000.00 0.0 7230.48 565.33 1967.54 1.00 9 168.85 70.66 -4.7 3.75 3.76 2 1000.00 0.0 8176.79 635.06 2219.80 1.00 10 172.60 78.67 -1.2 3.76 3.76 2 1000.00 0.0 9101.63 678.41 2429.18 1.00 11 176.36 86.05 -1.2 3.76 3.76 2 1000.00 0.0 9951.07 694.92 2654.86 1.00 12 180.13 92.94 2.3 3.76 3.76 2 1000.00 0.0 10743.35 684.94 2837.38 1.00 13 183.89 99.46 2.2 3.76 3.76 2 1000.00 0.0 11489.66 648.24 3035.89 1.00 14 187.65 105.09 5.7 3.75 3.76 2 1000.00 0.0 12132.56 585.06 3190.57 1.00 15 191.39 110.71 5.7 3.75 3.76 2 1000.00 0.0 12771.05 495.39 3360.98 1.00 16 195.14 114.97 9.1 3.72 3.76 2 1000.00 0.0 13251.06 379.22 3487.01 1.01 17 198.85 119.65 9.2 3.72 3.76 2 1000.00 0.0 13778.17 236.80 3628.79 1.01 18 202.57 103.87 12.6 3.12 3.20 2 1000.00 0.0 11950.35 70.39 3716.78 1.02 19 205.69 78.51 12.6 2.31 2.37 1 10.00 35.0 9029.12 0.00 3630.58 0.95 20 208.00 66.24 12.6 1.91 1.96 1 10.00 35.0 7603.87 0.00 3686.13 0.95 21 209.91 110.61 16.1 3.14 3.27 1 10.00 35.0 12637.50 0.00 3657.17 0.95 22 213.06 112.70 16.0 3.14 3.27 1 10.00 35.0 12804.67 0.00 3705.74 0.95 23 216.20 34.19 16.1 0.95 0.99 1 10.00 35.0 3874.00 0.00 3715.61 0.95 24 217.15 125.28 19.5 3.55 3.76 1 10.00 35.0 14188.13 0.00 3562.65 0.95 25 220.70 120.92 19.5 3.55 3.76 1 10.00 35.0 13684.91 0.00 3436.38 0.95 26 224.24 89.76 23.0 2.73 2.96 1 10.00 35.0 10151.70 0.00 3245.46 0.95 27 226.97 86.66 23.0 2.73 2.96 1 10.00 35.0 9794.61 0.00 3131.05 0.95 28 229.70 24.50 23.0 0.79 0.86 4 0.00 45.0 2449.75 0.00 2567.77 0.90 29 230.49 21.05 22.9 0.69 0.74 4 0.00 45.0 2128.88 159.30 2607.70 0.90 30 231.17 46.05 26.4 1.53 1.70 4 0.00 45.0 4825.41 1534.19 2719.53 0.90 31 232.70 76.10 26.4 2.61 2.91 1 10.00 35.0 9423.33 3883.03 3277.63 0.95 32 235.31 72.76 26.4 2.61 2.91 1 10.00 35.0 8987.87 3647.70 3123.29 0.95 33 237.92 85.93 29.9 3.26 3.76 1 10.00 35.0 10580.17 4342.18 2894.31 0.96 34 241.18 79.88 29.9 3.26 3.76 1 10.00 35.0 9791.06 3902.18 2673.17 0.96 35 244.45 70.83 33.3 3.15 3.76 1 10.00 35.0 8634.84 3439.39 2404.54 0.98 36 247.59 64.38 33.3 3.15 3.76 1 10.00 35.0 7795.04 2954.21 2162.96 0.98 37 250.74 55.26 36.8 3.02 3.76 1 10.00 35.0 6631.33 2447.08 1879.21 0.99 38 253.75 48.51 36.8 3.02 3.76 1 10.00 35.0 5753.05 1917.96 1618.78 0.99 39 256.77 39.56 40.2 2.87 3.76 1 10.00 35.0 4613.98 1368.06 1321.99 1.01 40 259.64 32.63 40.2 2.87 3.76 1 10.00 35.0 3710.81 797.68 1044.40 1.01 41 262.52 20.71 43.7 2.29 3.16 1 10.00 35.0 2269.44 215.10 760.37 1.04 42 264.80 20.46 43.7 3.16 4.37 1 10.00 35.0 2145.37 0.00 507.46 1.04 43 267.96 2.55 47.1 0.54 0.80 1 10.00 35.0 257.04 0.00 341.17 1.07 44 268.50 3.51 47.1 0.90 1.32 5 50.00 25.0 350.59 0.00 292.76 1.18 45 269.40 6.33 47.1 3.68 5.41 5 50.00 25.0 633.05 0.00 116.56 1.18 X -S Area: 2819.24 Path Length: 143.02 X -S Weight: 325970.22 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS1-EQ.gmf Processed: 23 Feb 2024 09:50:58 DATA: Analysis 1 - Case SS -1 - Pseudo -Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 120.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4728.00 300.00 4728.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4720.40 229.70 4720.40 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 229.70 4724.70 232.70 4724.70 Profile: 4 (2 points) Material beneath: 1 - Sand and Gravel 232.70 4720.40 300.00 4720.40 Profile: 5 (3 points) Material beneath: 2 - Weathered Claystone Bedrock 0.00 4686.00 138.60 4685.70 229.70 4685.50 Profile: 6 (2 points) Material beneath: 2 - Weathered Claystone Bedrock 232.70 4685.50 300.00 4685.40 Profile: 7 (4 points) Material beneath: 3 - Stable Claystone Bedrock 0.00 4683.00 138.60 4682.70 229.70 4682.50 Slope Surface (8 points) 0.00 4686.00 4724.60 269.40 4724.80 Phreatic Surface (5 points) 0.00 4716.80 Failure Surface 138.60 284.00 4686.00 138.60 4685.70 216.20 4726.90 300.00 4685.70 229.70 4724.50 4727.00 4685.50 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 138.00 YL: 4685.70 XR: 274.40 YR: Centre: XC: 153.81 YC: 4885.08 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 150.00 20 20 50 RESULTS: Analysis 1 - Case SS -1 - Pseudo -Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques 300.00 229.70 232.70 4725.52 200.00 4682.40 4724.60 232.70 4716.80 300.00 Initial failure surface approximation - Factor of Safety: 2.042 Analysis Summary There were: 18041 successful analyses from a total of 20001 trial failure surfaces 1960 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 1.61 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 143.00 4687.90 279.40 4726.24 180.36 4816.78 134.18 1.608 <-- Critical Surface 2 143.00 4687.90 277.29 4725.94 179.90 4813.72 131.12 1.609 3 143.00 4687.90 275.19 4725.63 179.44 4810.67 128.06 1.610 4 143.00 4687.90 273.08 4725.33 178.98 4807.61 125.00 1.614 5 143.00 4687.90 278.87 4726.16 180.00 4816.88 134.18 1.618 6 143.00 4687.90 276.77 4725.86 179.54 4813.83 131.12 1.621 7 143.00 4687.90 274.66 4725.56 179.07 4810.78 128.06 1.623 8 142.47 4687.64 273.61 4725.41 178.05 4810.66 128.06 1.623 9 143.00 4687.90 272.56 4725.25 178.62 4807.72 125.00 1.625 10 142.47 4687.64 271.51 4725.10 177.60 4807.60 125.00 1.625 11 142.47 4687.64 279.40 4726.24 179.09 4819.91 137.24 1.626 12 142.47 4687.64 275.19 4725.63 178.15 4813.81 131.12 1.629 13 143.00 4687.90 278.35 4726.09 179.64 4816.98 134.18 1.629 14 142.47 4687.64 277.29 4725.94 178.62 4816.86 134.18 1.629 15 143.00 4687.90 276.24 4725.78 179.17 4813.93 131.12 1.631 16 142.47 4687.64 273.08 4725.33 177.69 4810.76 128.06 1.631 17 141.95 4687.37 269.93 4724.88 176.21 4807.59 125.00 1.632 18 141.95 4687.37 277.82 4726.01 177.70 4819.88 137.24 1.632 19 141.95 4687.37 275.72 4725.71 177.22 4816.84 134.18 1.632 20 143.00 4687.90 274.14 4725.48 178.71 4810.88 128.06 1.633 21 142.47 4687.64 275.72 4725.71 178.51 4813.71 131.12 1.633 22 142.47 4687.64 278.87 4726.16 178.73 4820.01 137.24 1.634 23 142.47 4687.64 270.98 4725.03 177.23 4807.71 125.00 1.635 24 143.00 4687.90 272.03 4725.18 178.25 4807.83 125.00 1.635 25 142.47 4687.64 276.77 4725.86 178.25 4816.96 134.18 1.637 26 141.42 4687.11 278.35 4726.09 176.78 4822.89 140.31 1.637 27 141.95 4687.37 273.61 4725.41 176.76 4813.79 131.12 1.638 28 141.42 4687.11 276.24 4725.78 176.30 4819.85 137.24 1.638 29 141.95 4687.37 279.40 4726.24 177.82 4823.02 140.31 1.639 30 143.00 4687.90 277.82 4726.01 179.28 4817.09 134.18 1.639 31 142.47 4687.64 274.66 4725.56 177.78 4813.92 131.12 1.640 32 141.95 4687.37 271.51 4725.10 176.29 4810.74 128.06 1.641 33 143.00 4687.90 275.72 4725.71 178.81 4814.04 131.12 1.642 34 141.95 4687.37 269.40 4724.80 175.84 4807.69 125.00 1.642 35 142.47 4687.64 272.56 4725.25 177.32 4810.87 128.06 1.642 36 141.95 4687.37 277.29 4725.94 177.33 4819.98 137.24 1.642 37 142.47 4687.64 270.45 4724.95 176.86 4807.81 125.00 1.643 38 143.00 4687.90 273.61 4725.41 178.35 4810.99 128.06 1.644 39 141.42 4687.11 274.14 4725.48 175.83 4816.81 134.18 1.644 40 142.47 4687.64 278.35 4726.09 178.36 4820.11 137.24 1.644 41 141.95 4687.37 275.19 4725.63 176.86 4816.94 134.18 1.645 42 143.00 4687.90 271.51 4725.10 177.89 4807.93 125.00 1.646 43 143.00 4687.90 279.40 4726.24 179.39 4820.23 137.24 1.647 44 142.47 4687.64 277.82 4726.01 178.98 4816.76 134.18 1.647 45 141.42 4687.11 272.03 4725.18 175.36 4813.77 131.12 1.647 46 141.42 4687.11 277.82 4726.01 176.42 4822.98 140.31 1.647 47 142.47 4687.64 276.24 4725.78 177.89 4817.06 134.18 1.647 48 141.95 4687.37 273.08 4725.33 176.39 4813.89 131.12 1.648 49 141.42 4687.11 269.93 4724.88 174.90 4810.72 128.06 1.648 50 141.95 4687.37 278.87 4726.16 177.45 4823.11 140.31 1.649 51 143.00 4687.90 275.19 4725.63 178.45 4814.14 131.12 1.649 52 143.00 4687.90 277.29 4725.94 178.92 4817.19 134.18 1.650 53 142.47 4687.64 274.14 4725.48 177.42 4814.02 131.12 1.650 54 141.42 4687.11 275.72 4725.71 175.94 4819.94 137.24 1.650 55 142.47 4687.64 272.03 4725.18 176.95 4810.97 128.06 1.652 56 140.89 4686.85 278.35 4726.09 175.50 4825.97 143.37 1.652 57 141.95 4687.37 276.77 4725.86 176.97 4820.08 137.24 1.652 58 141.42 4687.11 279.40 4726.24 176.54 4826.11 143.37 1.652 59 142.47 4687.64 269.93 4724.88 176.50 4807.92 125.00 1.653 60 140.89 4686.85 272.56 4725.25 174.43 4816.77 134.18 1.653 61 141.42 4687.11 273.61 4725.41 175.46 4816.90 134.18 1.653 62 141.95 4687.37 272.03 4725.18 176.66 4810.64 128.06 1.653 63 141.95 4687.37 270.98 4725.03 175.93 4810.85 128.06 1.654 64 143.00 4687.90 273.08 4725.33 177.98 4811.09 128.06 1.654 65 141.95 4687.37 274.66 4725.56 176.49 4817.03 134.18 1.655 66 140.89 4686.85 270.45 4724.95 173.96 4813.73 131.12 1.655 67 140.89 4686.85 276.24 4725.78 175.02 4822.94 140.31 1.656 68 143.00 4687.90 270.98 4725.03 177.52 4808.04 125.00 1.656 69 141.42 4687.11 277.29 4725.94 176.05 4823.08 140.31 1.656 70 141.42 4687.11 269.40 4724.80 174.53 4810.82 128.06 1.657 71 141.95 4687.37 272.56 4725.25 176.02 4813.99 131.12 1.658 72 143.00 4687.90 278.87 4726.16 179.03 4820.33 137.24 1.658 73 141.42 4687.11 271.51 4725.10 174.99 4813.86 131.12 1.659 74 140.89 4686.85 274.14 4725.48 174.54 4819.91 137.24 1.659 75 141.95 4687.37 270.45 4724.95 175.56 4810.95 128.06 1.659 76 141.42 4687.11 275.19 4725.63 175.57 4820.04 137.24 1.660 77 142.47 4687.64 277.82 4726.01 178.00 4820.20 137.24 1.660 78 142.47 4687.64 279.40 4726.24 178.12 4823.34 140.31 1.661 79 143.00 4687.90 276.77 4725.86 178.55 4817.29 134.18 1.661 80 142.47 4687.64 275.72 4725.71 177.52 4817.16 134.18 1.661 81 142.47 4687.64 269.40 4724.80 176.13 4808.02 125.00 1.662 82 141.95 4687.37 278.35 4726.09 177.09 4823.21 140.31 1.662 83 141.42 4687.11 273.08 4725.33 175.10 4817.00 134.18 1.663 84 141.42 4687.11 278.87 4726.16 176.18 4826.20 143.37 1.663 85 141.95 4687.37 276.24 4725.78 176.61 4820.17 137.24 1.664 86 142.47 4687.64 277.29 4725.94 177.64 4820.30 137.24 1.664 87 143.00 4687.90 274.66 4725.56 178.08 4814.24 131.12 1.664 88 140.89 4686.85 269.93 4724.88 173.59 4813.83 131.12 1.664 89 140.89 4686.85 272.03 4725.18 174.06 4816.87 134.18 1.665 90 141.42 4687.11 270.98 4725.03 174.63 4813.96 131.12 1.665 91 141.42 4687.11 276.77 4725.86 175.69 4823.17 140.31 1.666 92 140.89 4686.85 279.40 4726.24 175.27 4829.18 146.43 1.666 93 142.47 4687.64 273.61 4725.41 177.05 4814.12 131.12 1.666 94 143.00 4687.90 272.56 4725.25 177.62 4811.19 128.06 1.667 95 142.47 4687.64 275.19 4725.63 177.16 4817.26 134.18 1.667 96 140.89 4686.85 277.82 4726.01 175.14 4826.06 143.37 1.668 97 141.95 4687.37 274.14 4725.48 176.13 4817.13 134.18 1.668 98 142.47 4687.64 273.08 4725.33 176.69 4814.22 131.12 1.669 99 142.47 4687.64 271.51 4725.10 176.59 4811.07 128.06 1.669 Critical Failure Surface (circle 1) Intersects: XL: 143.00 YL: 4687.90 Centre: XC: 180.36 YC: 4816.78 Generated failure surface: (20 points) 143.00 4687.90 150.60 4685.94 4682.75 181.78 4682.60 189.63 4682.91 4686.59 220.44 4688.72 227.86 4691.28 4701.51 255.69 4705.73 262.06 4710.33 4726.24 XR: 279.40 YR: 4726.24 Radius: R: 134.18 158.31 197.44 235.12 268.14 4684.42 4683.68 4694.28 4715.29 Slice Geometry and Properties - Critical Failure Surface (circle 1, 42 slices) Slice Test Factor X -S Base 166.09 205.20 242.20 273.93 4683.35 4684.91 4697.69 4720.60 173.93 212.88 249.06 279.40 PoreWater Normal X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress 1 143.00 5.48 -14.5 3.80 3.93 1 10.00 35.0 630.31 0.00 188.58 1.16 2 146.80 16.45 -14.5 3.80 3.93 1 10.00 35.0 1891.56 0.00 562.34 1.16 3 150.60 8.37 -11.1 1.34 1.37 1 10.00 35.0 962.40 0.00 785.60 1.11 4 151.95 24.86 -11.1 3.18 3.24 2 1000.00 0.0 2863.95 62.75 1022.33 1.02 5 155.13 31.92 -11.1 3.18 3.24 2 1000.00 0.0 3685.47 188.06 1280.46 1.02 6 158.31 48.16 -7.8 3.89 3.93 2 1000.00 0.0 5567.79 367.85 1515.89 1.01 7 162.20 57.80 -7.8 3.89 3.93 2 1000.00 0.0 6686.65 496.00 1803.35 1.01 8 166.09 67.44 -4.4 3.92 3.93 2 1000.00 0.0 7803.73 596.28 2041.09 1.00 9 170.01 76.30 -4.4 3.92 3.93 2 1000.00 0.0 8827.50 668.44 2302.54 1.00 10 173.93 81.72 -1.1 3.78 3.78 2 1000.00 0.0 9452.65 686.42 2509.84 1.00 11 177.71 89.14 -1.1 3.78 3.78 2 1000.00 0.0 10307.76 701.07 2735.83 1.00 12 181.49 103.69 2.0 4.07 4.07 2 1000.00 0.0 11983.66 744.39 2924.20 1.00 13 185.56 111.30 2.3 4.07 4.07 2 1000.00 0.0 12855.82 701.10 3136.02 1.00 14 189.63 113.68 5.6 3.91 3.93 2 1000.00 0.0 13121.18 607.29 3295.80 1.00 15 193.54 119.81 5.6 3.91 3.93 2 1000.00 0.0 13818.62 510.60 3474.24 1.00 16 197.44 124.52 9.0 3.88 3.93 2 1000.00 0.0 14350.92 386.03 3601.13 1.01 17 201.32 129.67 9.0 3.88 3.93 2 1000.00 0.0 14930.01 233.46 3750.41 1.01 18 205.20 96.44 12.3 2.80 2.86 2 1000.00 0.0 11095.24 59.40 3831.13 1.02 19 208.00 85.87 12.3 2.44 2.50 1 10.00 35.0 9852.67 0.00 3688.15 0.93 20 210.44 87.54 12.3 2.44 2.50 1 10.00 35.0 10000.37 0.00 3743.43 0.93 21 212.88 121.69 15.7 3.32 3.45 1 10.00 35.0 13830.94 0.00 3706.00 0.93 22 216.20 154.24 15.7 4.24 4.40 1 10.00 35.0 17476.06 0.00 3672.43 0.93 23 220.44 130.62 19.1 3.71 3.93 1 10.00 35.0 14790.95 0.00 3461.69 0.92 24 224.15 125.97 19.1 3.71 3.93 1 10.00 35.0 14253.71 0.00 3335.89 0.92 25 227.86 60.51 22.4 1.84 1.99 1 10.00 35.0 6843.63 0.00 3155.33 0.92 26 229.70 21.16 22.4 0.65 0.71 4 0.00 45.0 2115.93 0.00 2581.03 0.86 27 230.35 74.67 22.4 2.35 2.54 4 0.00 45.0 7742.97 1863.55 2775.21 0.86 28 232.70 74.74 22.4 2.42 2.62 1 10.00 35.0 9279.60 3767.34 3461.83 0.92 29 235.12 104.32 25.8 3.54 3.93 1 10.00 35.0 12922.70 5310.90 3251.50 0.92 30 238.66 98.35 25.8 3.54 3.93 1 10.00 35.0 12144.52 4892.55 3051.20 0.92 31 242.20 89.26 29.1 3.43 3.93 1 10.00 35.0 10980.47 4449.27 2793.99 0.92 32 245.63 82.77 29.1 3.43 3.93 1 10.00 35.0 10134.56 3980.76 2572.38 0.92 33 249.06 73.33 32.5 3.31 3.93 1 10.00 35.0 8927.34 3488.59 2299.35 0.93 34 252.37 66.41 32.5 3.31 3.93 1 10.00 35.0 8024.90 2971.53 2057.61 0.93 35 255.69 56.86 35.8 3.18 3.93 1 10.00 35.0 6805.78 2431.57 1770.81 0.94 36 258.87 49.59 35.8 3.18 3.93 1 10.00 35.0 5859.53 1868.18 1510.42 0.94 37 262.06 40.19 39.2 3.04 3.93 1 10.00 35.0 4661.30 1282.49 1211.88 0.95 38 265.10 32.69 39.2 3.04 3.93 1 10.00 35.0 3684.46 674.40 934.54 0.95 39 268.14 11.21 42.5 1.26 1.70 1 10.00 35.0 1224.19 99.44 709.55 0.97 40 269.40 28.88 42.5 4.32 5.86 1 10.00 35.0 3015.84 0.00 495.23 0.97 41 273.72 10.75 45.6 2.84 4.07 5 50.00 25.0 1075.44 0.00 267.35 1.10 42 276.56 3.58 45.9 2.84 4.08 5 50.00 25.0 358.44 0.00 72.40 1.11 X -S Area: 2991.97 Path Length: 149.24 X -S Weight: 346841.59 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS2.gmf Processed: 23 Feb 2024 11:25:08 DATA: Analysis 1 - Case SS -2 - Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 105.00 Auto Saturated: 1000.00 0.0 115.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 115.00 Auto Saturated: 3000.00 0.0 128.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4719.00 400.00 4719.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4716.40 216.10 4716.40 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 216.10 4718.10 Profile: 4 (2 points) 219.10 4716.40 Profile: 5 (3 points) 0.00 4683.80 Profile: 6 (2 points) 219.10 4683.80 Profile: 7 (4 points) 0.00 4680.80 Slope Surface (8 points) 0.00 4683.80 4718.00 293.40 4718.00 219.10 4718.10 Material beneath: 1 - Sand and Gravel 400.00 4716.40 Material beneath: 2 - Weathered Sandstone Bedrock 134.20 4683.80 216.10 4683.80 Material beneath: 2 - Weathered Sandstone Bedrock 400.00 4683.80 Material beneath: 3 - Stable Sandstone Bedrock 134.20 4680.80 216.10 4680.80 Phreatic Surface (5 points) 0.00 4715.00 Failure Surface 4683.80 134.21 4683.80 373.50 4718.00 134.20 4683.80 202.60 400.00 216.10 4718.00 4717.90 4683.80 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 134.20 YL: 4683.80 XR: 298.40 YR: Centre: XC: 147.01 YC: 5033.57 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 300.00 20 20 50 RESULTS: Analysis 1 - Case SS -2 - Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.106 Analysis Summary 400.00 216.10 4680.80 4718.00 219.10 4715.00 4718.00 350.00 219.10 400.00 There were: 17005 successful analyses from a total of 20001 trial failure surfaces 2996 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 2.14 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 138.15 4685.77 298.14 4718.00 182.08 4880.88 200.00 2.138 <-- Critical Surface 2 138.15 4685.77 298.66 4718.00 182.48 4880.79 200.00 2.140 3 137.62 4685.51 296.56 4718.00 180.47 4880.86 200.00 2.143 4 137.09 4685.24 294.98 4718.00 178.85 4880.83 200.00 2.149 5 138.15 4685.77 297.61 4718.00 181.68 4880.97 200.00 2.153 6 136.57 4684.98 293.40 4718.00 177.23 4880.80 200.00 2.156 7 137.09 4685.24 297.61 4718.00 179.53 4886.95 206.12 2.157 8 137.62 4685.51 299.19 4718.00 181.15 4886.98 206.12 2.158 9 138.67 4686.03 299.19 4718.00 183.29 4880.99 200.00 2.159 10 137.62 4685.51 296.03 4718.00 180.07 4880.95 200.00 2.162 11 136.57 4684.98 296.03 4718.00 177.90 4886.91 206.12 2.164 12 137.09 4685.24 294.45 4718.00 178.45 4880.92 200.00 2.164 13 138.15 4685.77 300.24 4718.00 182.37 4887.09 206.12 2.165 14 138.67 4686.03 299.72 4718.00 183.68 4880.90 200.00 2.166 15 138.67 4686.03 300.24 4718.00 184.08 4880.81 200.00 2.169 16 138.15 4685.77 297.08 4718.00 181.28 4881.06 200.00 2.169 17 137.62 4685.51 298.66 4718.00 180.75 4887.06 206.12 2.169 18 138.15 4685.77 300.77 4718.00 182.77 4887.00 206.12 2.172 19 137.09 4685.24 300.24 4718.00 180.23 4893.06 212.24 2.172 20 137.09 4685.24 297.08 4718.00 179.13 4887.03 206.12 2.173 21 138.67 4686.03 298.66 4718.00 182.89 4881.08 200.00 2.173 22 139.20 4686.30 299.72 4718.00 184.09 4881.19 200.00 2.178 23 137.62 4685.51 301.82 4718.00 181.86 4893.09 212.24 2.178 24 137.62 4685.51 301.29 4718.00 181.45 4893.17 212.24 2.178 25 138.15 4685.77 299.72 4718.00 181.97 4887.18 206.12 2.179 26 136.57 4684.98 295.51 4718.00 177.50 4887.00 206.12 2.179 27 137.09 4685.24 293.93 4718.00 178.04 4881.01 200.00 2.180 28 137.09 4685.24 299.72 4718.00 179.83 4893.14 212.24 2.180 29 137.62 4685.51 295.51 4718.00 179.66 4881.04 200.00 2.182 30 138.67 4686.03 298.14 4718.00 182.49 4881.17 200.00 2.182 31 139.20 4686.30 300.24 4718.00 184.49 4881.10 200.00 2.185 32 137.09 4685.24 302.35 4718.00 180.55 4899.24 218.37 2.185 33 138.15 4685.77 296.56 4718.00 180.88 4881.15 200.00 2.185 34 136.57 4684.98 298.14 4718.00 178.19 4893.10 212.24 2.186 35 137.62 4685.51 298.14 4718.00 180.35 4887.15 206.12 2.186 36 136.04 4684.72 293.93 4718.00 175.86 4886.96 206.12 2.187 37 137.09 4685.24 302.87 4718.00 180.95 4899.16 218.37 2.187 38 138.67 4686.03 301.29 4718.00 183.58 4887.20 206.12 2.190 39 137.09 4685.24 296.56 4718.00 178.72 4887.12 206.12 2.191 40 136.57 4684.98 300.77 4718.00 178.91 4899.20 218.37 2.191 41 137.62 4685.51 294.98 4718.00 179.26 4881.12 200.00 2.193 42 139.20 4686.30 300.77 4718.00 184.89 4881.01 200.00 2.193 43 136.04 4684.72 296.56 4718.00 176.55 4893.06 212.24 2.193 44 137.62 4685.51 300.77 4718.00 181.05 4893.26 212.24 2.194 45 136.57 4684.98 294.98 4718.00 177.09 4887.08 206.12 2.194 46 138.67 4686.03 300.77 4718.00 183.18 4887.29 206.12 2.195 47 138.15 4685.77 299.19 4718.00 181.57 4887.27 206.12 2.195 48 137.09 4685.24 293.40 4718.00 177.63 4881.09 200.00 2.195 49 137.09 4685.24 299.19 4718.00 179.42 4893.22 212.24 2.195 50 138.15 4685.77 301.29 4718.00 183.17 4886.91 206.12 2.196 51 136.57 4684.98 303.40 4718.00 179.64 4905.30 224.49 2.196 52 137.62 4685.51 297.08 4718.00 180.87 4880.77 200.00 2.197 53 138.15 4685.77 302.35 4718.00 182.68 4893.29 212.24 2.197 54 139.20 4686.30 299.19 4718.00 183.70 4881.28 200.00 2.198 55 138.67 4686.03 301.82 4718.00 183.98 4887.11 206.12 2.198 56 138.67 4686.03 297.61 4718.00 182.09 4881.26 200.00 2.198 57 136.04 4684.72 299.19 4718.00 177.26 4899.16 218.37 2.199 58 139.20 4686.30 301.82 4718.00 185.68 4880.82 200.00 2.200 59 136.57 4684.98 298.66 4718.00 178.60 4893.02 212.24 2.200 60 138.15 4685.77 296.03 4718.00 180.48 4881.24 200.00 2.201 61 139.20 4686.30 301.29 4718.00 185.28 4880.91 200.00 2.201 62 136.57 4684.98 297.61 4718.00 177.78 4893.18 212.24 2.201 63 137.09 4685.24 301.82 4718.00 180.14 4899.32 218.37 2.201 64 136.04 4684.72 293.40 4718.00 175.45 4887.04 206.12 2.202 65 137.62 4685.51 297.61 4718.00 179.94 4887.24 206.12 2.202 66 135.52 4684.45 294.98 4718.00 174.90 4893.01 212.24 2.203 67 138.15 4685.77 302.87 4718.00 183.08 4893.20 212.24 2.204 68 137.62 4685.51 294.45 4718.00 178.85 4881.21 200.00 2.205 69 138.67 4686.03 302.35 4718.00 184.38 4887.02 206.12 2.205 70 136.57 4684.98 300.24 4718.00 178.50 4899.28 218.37 2.206 71 136.57 4684.98 302.87 4718.00 179.24 4905.38 224.49 2.207 72 137.62 4685.51 303.40 4718.00 181.78 4899.36 218.37 2.208 73 136.04 4684.72 296.03 4718.00 176.14 4893.14 212.24 2.208 74 136.57 4684.98 294.45 4718.00 176.68 4887.16 206.12 2.208 75 138.67 4686.03 300.24 4718.00 182.78 4887.38 206.12 2.209 76 138.15 4685.77 301.82 4718.00 182.27 4893.38 212.24 2.209 77 137.09 4685.24 296.03 4718.00 178.31 4887.20 206.12 2.210 78 137.62 4685.51 300.24 4718.00 180.65 4893.34 212.24 2.210 79 138.15 4685.77 298.66 4718.00 181.16 4887.35 206.12 2.210 80 137.09 4685.24 298.66 4718.00 179.02 4893.31 212.24 2.210 81 138.15 4685.77 303.40 4718.00 183.48 4893.12 212.24 2.211 82 138.67 4686.03 302.87 4718.00 184.77 4886.93 206.12 2.213 83 139.20 4686.30 301.82 4718.00 184.39 4887.40 206.12 2.213 84 136.04 4684.72 298.66 4718.00 176.85 4899.24 218.37 2.213 85 137.62 4685.51 297.08 4718.00 179.54 4887.32 206.12 2.214 86 138.67 4686.03 297.08 4718.00 181.69 4881.35 200.00 2.215 87 139.20 4686.30 298.66 4718.00 183.30 4881.37 200.00 2.215 88 138.15 4685.77 301.29 4718.00 181.87 4893.46 212.24 2.215 89 137.09 4685.24 301.29 4718.00 179.74 4899.41 218.37 2.216 90 136.04 4684.72 301.29 4718.00 177.59 4905.33 224.49 2.217 91 135.52 4684.45 294.45 4718.00 174.49 4893.09 212.24 2.217 92 137.09 4685.24 295.51 4718.00 177.91 4887.28 206.12 2.218 93 138.15 4685.77 295.51 4718.00 180.07 4881.33 200.00 2.218 94 136.57 4684.98 297.08 4718.00 177.37 4893.26 212.24 2.219 95 138.67 4686.03 302.87 4718.00 183.50 4893.49 212.24 2.219 96 137.62 4685.51 293.93 4718.00 178.45 4881.29 200.00 2.220 97 139.20 4686.30 302.35 4718.00 184.79 4887.31 206.12 2.220 98 136.57 4684.98 299.72 4718.00 178.09 4899.36 218.37 2.221 99 137.62 4685.51 299.72 4718.00 180.24 4893.43 212.24 2.221 Critical Failure Surface (circle 1) Intersects: XL: 138.15 YL: Centre: XC: 182.08 YC: Generated failure surface: (20 points) 138.15 4681.08 182.03 4684.00 225.91 4696.51 267.65 4718.00 4685.77 4680.88 4685.74 4700.11 146.82 190.87 234.49 275.56 4685.77 4880.88 4684.02 4681.08 4687.87 4704.07 XR: 298.14 YR: 4718.00 Radius: R: 200.00 155.56 199.70 242.98 283.29 4682.65 4681.66 4690.38 4708.38 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) 164.35 208.49 251.34 290.82 4681.67 4682.63 4693.26 4713.03 173.18 217.23 259.57 298.14 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 138.15 6.60 -11.4 4.34 4.42 1 10.00 35.0 759.16 0.00 188.50 1.09 2 142.48 19.80 -11.4 4.34 4.42 1 10.00 35.0 2277.48 0.00 563.50 1.09 3 146.82 9.05 -8.9 1.38 1.40 1 10.00 35.0 1040.94 0.00 793.83 1.07 4 148.20 30.18 -8.9 3.68 3.72 2 1000.00 0.0 3471.19 66.82 1016.72 1.01 5 151.88 39.07 -8.9 3.68 3.72 2 1000.00 0.0 4492.67 200.46 1294.40 1.01 6 155.56 57.90 -6.4 4.40 4.42 2 1000.00 0.0 6659.06 385.07 1566.76 1.01 7 159.96 69.72 -6.4 4.40 4.42 2 1000.00 0.0 8018.32 520.25 1875.88 1.01 8 164.35 81.45 -3.8 4.41 4.42 2 1000.00 0.0 9366.66 628.34 2153.37 1.00 9 168.77 92.49 -3.8 4.41 4.42 2 1000.00 0.0 10636.84 709.75 2441.15 1.00 10 173.18 103.32 -1.3 4.42 4.42 2 1000.00 0.0 11881.49 763.94 2697.09 1.00 11 177.60 113.54 -1.3 4.42 4.42 2 1000.00 0.0 13056.85 791.44 2962.86 1.00 12 182.03 123.32 1.3 4.42 4.42 2 1000.00 0.0 14182.04 791.70 3196.58 1.00 13 186.45 132.67 1.3 4.42 4.42 2 1000.00 0.0 15257.57 765.01 3439.77 1.00 14 190.87 136.40 3.8 4.26 4.27 2 1000.00 0.0 15686.54 688.66 3647.08 1.00 15 195.14 144.30 3.8 4.26 4.27 2 1000.00 0.0 16594.18 613.39 3859.90 1.00 16 199.40 113.26 6.1 3.20 3.22 2 1000.00 0.0 12985.94 400.60 4008.65 1.01 17 202.60 105.62 6.3 2.95 2.96 2 1000.00 0.0 12076.03 306.05 4047.45 1.01 18 205.55 104.66 6.3 2.95 2.96 2 1000.00 0.0 11965.37 245.63 4009.96 1.01 19 208.49 131.15 8.9 3.74 3.78 2 1000.00 0.0 14992.41 206.28 3936.61 1.01 20 212.23 128.97 8.9 3.74 3.78 2 1000.00 0.0 14742.13 68.84 3869.67 1.01 21 215.97 43.08 8.9 1.26 1.28 4 0.00 45.0 4372.23 408.43 3248.01 0.94 22 217.23 63.12 11.4 1.87 1.90 4 0.00 45.0 6706.20 2508.12 3396.71 0.93 23 219.10 113.27 11.4 3.40 3.47 1 10.00 35.0 14490.58 6560.50 4110.44 0.96 24 222.50 110.94 11.4 3.40 3.47 1 10.00 35.0 14187.07 6411.70 4024.22 0.96 25 225.91 136.21 13.9 4.29 4.42 1 10.00 35.0 17410.64 7928.54 3884.06 0.95 26 230.20 131.64 13.9 4.29 4.42 1 10.00 35.0 16816.45 7634.69 3751.09 0.95 27 234.49 125.15 16.5 4.24 4.42 1 10.00 35.0 15976.53 7314.87 3578.36 0.95 28 238.74 119.83 16.5 4.24 4.42 1 10.00 35.0 15285.54 6969.02 3422.95 0.95 29 242.98 112.52 19.0 4.18 4.42 1 10.00 35.0 14338.38 6597.03 3230.42 0.95 30 247.16 106.49 19.0 4.18 4.42 1 10.00 35.0 13555.46 6199.82 3053.03 0.95 31 251.34 98.47 21.5 4.11 4.42 1 10.00 35.0 12516.60 5777.08 2841.46 0.95 32 255.46 91.79 21.5 4.11 4.42 1 10.00 35.0 11648.36 5329.07 2643.02 0.95 33 259.57 83.17 24.1 4.04 4.42 1 10.00 35.0 10533.84 4855.90 2413.41 0.96 34 263.61 75.89 24.1 4.04 4.42 1 10.00 35.0 9586.73 4358.02 2194.49 0.96 35 267.65 66.83 26.6 3.96 4.42 1 10.00 35.0 8414.99 3835.66 1947.89 0.96 36 271.61 59.00 26.6 3.96 4.42 1 10.00 35.0 7396.58 3288.98 1709.29 0.96 37 275.56 49.65 29.1 3.86 4.42 1 10.00 35.0 6187.43 2718.60 1446.78 0.97 38 279.43 41.32 29.1 3.86 4.42 1 10.00 35.0 5105.54 2123.95 1189.28 0.97 39 283.29 31.84 31.7 3.76 4.42 1 10.00 35.0 3879.39 1506.28 912.06 0.98 40 287.06 23.09 31.7 3.76 4.42 1 10.00 35.0 2742.55 865.19 636.48 0.98 41 290.82 10.57 34.2 2.58 3.12 1 10.00 35.0 1195.85 213.38 388.97 0.99 42 293.40 5.74 34.2 2.38 2.88 1 10.00 35.0 603.08 0.00 204.42 0.99 43 295.78 1.88 34.2 2.35 2.85 5 50.00 25.0 188.40 0.00 55.85 1.05 X -S Area: 3444.98 Path Length: 168.10 X -S Weight: 413281.25 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS2-EQ.gmf Processed: 23 Feb 2024 11:31:06 DATA: Analysis 1 - Case SS -2 - Pseudo -Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 105.00 Auto Saturated: 1000.00 0.0 115.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 115.00 Auto Saturated: 3000.00 0.0 128.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4719.00 400.00 4719.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4716.40 216.10 4716.40 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 216.10 4718.10 Profile: 4 (2 points) 219.10 4716.40 Profile: 5 (3 points) 0.00 4683.80 Profile: 6 (2 points) 219.10 4683.80 Profile: 7 (4 points) 0.00 4680.80 Slope Surface (8 points) 0.00 4683.80 4718.00 293.40 4718.00 219.10 4718.10 Material beneath: 1 - Sand and Gravel 400.00 4716.40 Material beneath: 2 - Weathered Sandstone Bedrock 134.20 4683.80 216.10 4683.80 Material beneath: 2 - Weathered Sandstone Bedrock 400.00 4683.80 Material beneath: 3 - Stable Sandstone Bedrock 134.20 4680.80 216.10 4680.80 Phreatic Surface (5 points) 0.00 4715.00 Failure Surface 4683.80 134.21 4683.80 373.50 4718.00 134.20 4683.80 202.60 400.00 216.10 4718.00 4717.90 4683.80 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 134.20 YL: 4683.80 XR: 298.40 YR: Centre: XC: 147.01 YC: 5033.57 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 300.00 20 20 50 RESULTS: Analysis 1 - Case SS -2 - Pseudo -Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques 400.00 216.10 4680.80 4718.00 219.10 4715.00 4718.00 350.00 219.10 400.00 Initial failure surface approximation - Factor of Safety: 2.287 Analysis Summary There were: 17005 successful analyses from a total of 20001 trial failure surfaces 2996 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 1.55 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 138.15 4685.77 298.66 4718.00 182.48 4880.79 200.00 1.549 <-- Critical Surface 2 138.15 4685.77 298.14 4718.00 182.08 4880.88 200.00 1.549 3 138.67 4686.03 299.19 4718.00 183.29 4880.99 200.00 1.558 4 137.62 4685.51 296.56 4718.00 180.47 4880.86 200.00 1.561 5 138.67 4686.03 299.72 4718.00 183.68 4880.90 200.00 1.562 6 138.15 4685.77 297.61 4718.00 181.68 4880.97 200.00 1.562 7 138.67 4686.03 300.24 4718.00 184.08 4880.81 200.00 1.562 8 138.15 4685.77 300.24 4718.00 182.37 4887.09 206.12 1.562 9 137.62 4685.51 299.19 4718.00 181.15 4886.98 206.12 1.563 10 138.15 4685.77 300.77 4718.00 182.77 4887.00 206.12 1.566 11 139.20 4686.30 299.72 4718.00 184.09 4881.19 200.00 1.568 12 137.62 4685.51 301.82 4718.00 181.86 4893.09 212.24 1.569 13 137.09 4685.24 297.61 4718.00 179.53 4886.95 206.12 1.570 14 138.67 4686.03 298.66 4718.00 182.89 4881.08 200.00 1.571 15 137.62 4685.51 301.29 4718.00 181.45 4893.17 212.24 1.571 16 139.20 4686.30 300.24 4718.00 184.49 4881.10 200.00 1.571 17 137.09 4685.24 294.98 4718.00 178.85 4880.83 200.00 1.573 18 137.09 4685.24 300.24 4718.00 180.23 4893.06 212.24 1.573 19 137.62 4685.51 298.66 4718.00 180.75 4887.06 206.12 1.573 20 138.15 4685.77 299.72 4718.00 181.97 4887.18 206.12 1.574 21 138.67 4686.03 301.29 4718.00 183.58 4887.20 206.12 1.574 22 137.09 4685.24 302.87 4718.00 180.95 4899.16 218.37 1.575 23 137.09 4685.24 302.35 4718.00 180.55 4899.24 218.37 1.575 24 138.15 4685.77 297.08 4718.00 181.28 4881.06 200.00 1.575 25 139.20 4686.30 300.77 4718.00 184.89 4881.01 200.00 1.576 26 137.62 4685.51 296.03 4718.00 180.07 4880.95 200.00 1.576 27 139.20 4686.30 301.82 4718.00 185.68 4880.82 200.00 1.577 28 138.67 4686.03 301.82 4718.00 183.98 4887.11 206.12 1.578 29 138.15 4685.77 302.35 4718.00 182.68 4893.29 212.24 1.579 30 138.67 4686.03 298.14 4718.00 182.49 4881.17 200.00 1.579 31 139.20 4686.30 301.29 4718.00 185.28 4880.91 200.00 1.579 32 138.67 4686.03 300.77 4718.00 183.18 4887.29 206.12 1.579 33 137.09 4685.24 299.72 4718.00 179.83 4893.14 212.24 1.580 34 138.15 4685.77 301.29 4718.00 183.17 4886.91 206.12 1.581 35 138.67 4686.03 302.35 4718.00 184.38 4887.02 206.12 1.582 36 138.15 4685.77 302.87 4718.00 183.08 4893.20 212.24 1.582 37 136.57 4684.98 303.40 4718.00 179.64 4905.30 224.49 1.583 38 136.57 4684.98 296.03 4718.00 177.90 4886.91 206.12 1.583 39 137.09 4685.24 297.08 4718.00 179.13 4887.03 206.12 1.583 40 137.62 4685.51 300.77 4718.00 181.05 4893.26 212.24 1.584 41 139.20 4686.30 299.19 4718.00 183.70 4881.28 200.00 1.585 42 138.67 4686.03 302.87 4718.00 184.77 4886.93 206.12 1.585 43 138.15 4685.77 303.40 4718.00 183.48 4893.12 212.24 1.585 44 137.62 4685.51 303.40 4718.00 181.78 4899.36 218.37 1.585 45 136.57 4684.98 293.40 4718.00 177.23 4880.80 200.00 1.586 46 137.09 4685.24 294.45 4718.00 178.45 4880.92 200.00 1.586 47 139.20 4686.30 301.82 4718.00 184.39 4887.40 206.12 1.586 48 137.62 4685.51 298.14 4718.00 180.35 4887.15 206.12 1.587 49 138.15 4685.77 299.19 4718.00 181.57 4887.27 206.12 1.587 50 136.57 4684.98 300.77 4718.00 178.91 4899.20 218.37 1.588 51 138.15 4685.77 296.56 4718.00 180.88 4881.15 200.00 1.589 52 137.09 4685.24 301.82 4718.00 180.14 4899.32 218.37 1.589 53 138.15 4685.77 301.82 4718.00 182.27 4893.38 212.24 1.589 54 139.20 4686.30 302.35 4718.00 184.79 4887.31 206.12 1.590 55 138.67 4686.03 302.87 4718.00 183.50 4893.49 212.24 1.590 56 138.67 4686.03 300.24 4718.00 182.78 4887.38 206.12 1.592 57 138.67 4686.03 303.40 4718.00 183.89 4893.40 212.24 1.592 58 136.57 4684.98 298.14 4718.00 178.19 4893.10 212.24 1.592 59 136.57 4684.98 302.87 4718.00 179.24 4905.38 224.49 1.592 60 138.67 4686.03 297.61 4718.00 182.09 4881.26 200.00 1.593 61 137.62 4685.51 295.51 4718.00 179.66 4881.04 200.00 1.593 62 137.09 4685.24 299.19 4718.00 179.42 4893.22 212.24 1.593 63 139.20 4686.30 302.87 4718.00 185.19 4887.22 206.12 1.593 64 138.15 4685.77 301.29 4718.00 181.87 4893.46 212.24 1.596 65 136.57 4684.98 295.51 4718.00 177.50 4887.00 206.12 1.596 66 139.20 4686.30 303.40 4718.00 185.58 4887.13 206.12 1.596 67 137.62 4685.51 300.24 4718.00 180.65 4893.34 212.24 1.598 68 139.20 4686.30 301.29 4718.00 184.00 4887.49 206.12 1.598 69 137.09 4685.24 296.56 4718.00 178.72 4887.12 206.12 1.598 70 139.20 4686.30 298.66 4718.00 183.30 4881.37 200.00 1.599 71 137.09 4685.24 293.93 4718.00 178.04 4881.01 200.00 1.599 72 137.62 4685.51 302.87 4718.00 181.37 4899.44 218.37 1.600 73 137.62 4685.51 297.08 4718.00 180.87 4880.77 200.00 1.600 74 136.57 4684.98 300.24 4718.00 178.50 4899.28 218.37 1.600 75 138.15 4685.77 298.66 4718.00 181.16 4887.35 206.12 1.601 76 136.04 4684.72 299.19 4718.00 177.26 4899.16 218.37 1.601 77 137.62 4685.51 297.61 4718.00 179.94 4887.24 206.12 1.601 78 136.57 4684.98 298.66 4718.00 178.60 4893.02 212.24 1.602 79 137.09 4685.24 301.29 4718.00 179.74 4899.41 218.37 1.602 80 138.15 4685.77 296.03 4718.00 180.48 4881.24 200.00 1.602 81 138.67 4686.03 302.35 4718.00 183.10 4893.58 212.24 1.603 82 137.62 4685.51 294.98 4718.00 179.26 4881.12 200.00 1.603 83 138.67 4686.03 299.72 4718.00 182.38 4887.47 206.12 1.605 84 136.57 4684.98 297.61 4718.00 177.78 4893.18 212.24 1.605 85 136.04 4684.72 296.56 4718.00 176.55 4893.06 212.24 1.606 86 137.09 4685.24 298.66 4718.00 179.02 4893.31 212.24 1.606 87 137.62 4685.51 302.35 4718.00 180.97 4899.53 218.37 1.606 88 138.67 4686.03 297.08 4718.00 181.69 4881.35 200.00 1.607 89 136.57 4684.98 302.35 4718.00 178.83 4905.45 224.49 1.607 90 138.15 4685.77 303.40 4718.00 182.20 4899.65 218.37 1.607 91 136.04 4684.72 301.29 4718.00 177.59 4905.33 224.49 1.608 92 137.62 4685.51 299.72 4718.00 180.24 4893.43 212.24 1.608 93 136.57 4684.98 294.98 4718.00 177.09 4887.08 206.12 1.609 94 137.09 4685.24 303.40 4718.00 180.07 4905.58 224.49 1.609 95 136.04 4684.72 293.93 4718.00 175.86 4886.96 206.12 1.610 96 138.15 4685.77 300.77 4718.00 181.47 4893.54 212.24 1.611 97 139.20 4686.30 300.77 4718.00 183.60 4887.58 206.12 1.611 98 137.62 4685.51 297.08 4718.00 179.54 4887.32 206.12 1.611 99 137.09 4685.24 293.40 4718.00 177.63 4881.09 200.00 1.612 Critical Failure Surface (circle 1) Intersects: Centre: XL: XC: 138.15 182.48 YL: YC: Generated failure surface: (20 points) 138.15 4681.00 182.16 4683.88 226.20 4696.42 268.08 4718.00 4685.77 4680.79 4685.63 4700.04 146.85 191.04 234.81 276.02 4685.77 4880.79 4683.99 4680.98 4687.76 4704.02 XR: 298.66 YR: 4718.00 Radius: R: 200.00 155.61 199.90 243.33 283.77 4682.61 4681.55 4690.27 4708.34 Slice Geometry and Properties - Critical Failure Surface (circle 1, 44 slices) Slice Test Factor X -S Base 164.43 208.72 251.72 291.33 4681.61 4682.52 4693.16 4713.00 173.29 217.49 259.98 298.66 PoreWater Normal X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress 1 138.15 6.66 -11.5 4.35 4.44 1 10.00 35.0 765.80 0.00 195.44 1.12 2 142.50 19.98 -11.5 4.35 4.44 1 10.00 35.0 2297.41 0.00 583.43 1.12 3 146.85 7.98 -9.0 1.22 1.24 1 10.00 35.0 917.37 0.00 809.56 1.09 4 148.07 30.83 -9.0 3.77 3.82 2 1000.00 0.0 3545.35 71.11 1041.80 1.01 5 151.84 40.20 -9.0 3.77 3.82 2 1000.00 0.0 4623.04 213.45 1327.53 1.01 6 155.61 58.43 -6.4 4.41 4.44 2 1000.00 0.0 6719.83 399.75 1596.60 1.01 7 160.02 70.36 -6.4 4.41 4.44 2 1000.00 0.0 8091.09 537.69 1907.52 1.01 8 164.43 82.20 -3.9 4.43 4.44 2 1000.00 0.0 9452.86 648.58 2178.80 1.00 9 168.86 93.34 -3.9 4.43 4.44 2 1000.00 0.0 10734.43 732.29 2468.21 1.00 10 173.29 100.99 -1.4 4.30 4.30 2 1000.00 0.0 11613.78 764.69 2713.88 1.00 11 177.59 110.69 -1.4 4.30 4.30 2 1000.00 0.0 12729.29 792.11 2973.15 1.00 12 181.90 127.78 1.0 4.57 4.57 2 1000.00 0.0 14695.00 845.80 3203.25 1.00 13 186.47 137.80 1.2 4.57 4.57 2 1000.00 0.0 15847.00 818.96 3453.54 1.00 14 191.04 134.41 3.7 4.18 4.19 2 1000.00 0.0 15457.57 702.57 3655.47 1.00 15 195.22 142.02 3.7 4.18 4.19 2 1000.00 0.0 16331.78 631.47 3864.51 1.00 16 199.40 113.67 5.9 3.20 3.22 2 1000.00 0.0 13034.10 426.72 4007.14 1.01 17 202.60 110.13 6.3 3.06 3.08 2 1000.00 0.0 12591.02 342.42 4043.02 1.01 18 205.66 109.10 6.3 3.06 3.08 2 1000.00 0.0 12472.55 277.77 4004.43 1.01 19 208.72 129.84 8.8 3.69 3.73 2 1000.00 0.0 14843.18 231.15 3923.09 1.01 20 212.41 127.73 8.8 3.69 3.73 2 1000.00 0.0 14600.52 97.94 3857.33 1.01 21 216.10 47.69 8.8 1.39 1.41 4 0.00 45.0 4869.92 639.71 3218.88 0.92 22 217.49 54.56 11.4 1.61 1.64 4 0.00 45.0 5819.29 2311.43 3367.95 0.90 23 219.10 118.65 11.4 3.55 3.62 1 10.00 35.0 15179.82 6874.12 4079.09 0.94 24 222.65 116.12 11.4 3.55 3.62 1 10.00 35.0 14851.15 6713.21 3990.49 0.94 25 226.20 137.18 13.9 4.31 4.44 1 10.00 35.0 17535.46 7987.12 3840.05 0.93 26 230.50 132.58 13.9 4.31 4.44 1 10.00 35.0 16938.37 7691.67 3708.82 0.93 27 234.81 126.05 16.4 4.26 4.44 1 10.00 35.0 16093.04 7370.17 3529.23 0.92 28 239.07 120.70 16.4 4.26 4.44 1 10.00 35.0 15397.77 7021.99 3375.98 0.92 29 243.33 113.34 19.0 4.20 4.44 1 10.00 35.0 14444.71 6648.39 3178.15 0.92 30 247.52 107.28 19.0 4.20 4.44 1 10.00 35.0 13656.66 6248.37 3003.53 0.92 31 251.72 99.19 21.5 4.13 4.44 1 10.00 35.0 12610.11 5823.00 2788.35 0.91 32 255.85 92.47 21.5 4.13 4.44 1 10.00 35.0 11736.07 5371.77 2593.38 0.91 33 259.98 83.79 24.1 4.05 4.44 1 10.00 35.0 10613.20 4895.53 2361.89 0.91 34 264.03 76.46 24.1 4.05 4.44 1 10.00 35.0 9659.69 4394.45 2147.08 0.91 35 268.08 67.33 26.6 3.97 4.44 1 10.00 35.0 8478.65 3868.19 1900.43 0.91 36 272.05 59.44 26.6 3.97 4.44 1 10.00 35.0 7453.04 3317.54 1666.77 0.91 37 276.02 50.01 29.2 3.88 4.44 1 10.00 35.0 6234.38 2742.73 1406.12 0.91 38 279.90 41.63 29.2 3.88 4.44 1 10.00 35.0 5144.68 2143.91 1154.39 0.91 39 283.77 32.07 31.7 3.78 4.44 1 10.00 35.0 3909.10 1521.56 880.95 0.92 40 287.55 23.27 31.7 3.78 4.44 1 10.00 35.0 2764.01 875.47 612.15 0.92 41 291.33 8.90 34.2 2.07 2.51 1 10.00 35.0 1013.73 201.90 389.18 0.93 42 293.40 2.82 34.2 0.86 1.04 1 10.00 35.0 307.23 18.83 275.39 0.93 43 294.26 4.73 34.2 2.06 2.49 1 10.00 35.0 494.54 0.00 180.54 0.93 44 296.31 1.88 34.2 2.35 2.84 5 50.00 25.0 188.00 0.00 48.15 1.00 X -S Area: 3472.27 Path Length: 168.66 X -S Weight: 416755.56 ALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS3.gmf Processed: 24 Feb 2024 13:42:29 DATA: Analysis 1 - Case SS -3 - Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 120.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4721.00 365.00 4721.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4716.40 216.50 4716.40 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 216.50 4718.40 Profile: 4 (2 points) 219.50 4716.40 Profile: 5 (3 points) 0.00 4684.00 Profile: 6 (2 points) 219.50 4684.00 Profile: 7 (4 points) 0.00 4681.00 Slope Surface (8 points) 0.00 4684.00 4718.30 263.70 4718.30 219.50 4718.40 Material beneath: 1 - Sand and Gravel 365.00 4716.40 Material beneath: 2 - Weathered Claystone Bedrock 134.30 4684.00 216.50 4684.00 Material beneath: 2 - Weathered Claystone Bedrock 365.00 4684.00 Material beneath: 3 - Stable Claystone Bedrock 134.20 4681.00 216.50 4681.00 Phreatic Surface (5 points) 0.00 4715.00 Failure Surface 4684.00 134.20 4684.00 314.40 4719.90 134.20 4684.00 203.00 365.00 216.50 4718.30 4720.50 4684.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 134.00 YL: 4684.00 XR: 268.70 YR: Centre: XC: 141.84 YC: 4933.88 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 200.00 20 20 50 RESULTS: Analysis 1 - Case SS -3 - Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.702 Analysis Summary 365.00 216.50 4681.20 4718.30 219.50 4715.00 4718.46 250.00 219.50 365.00 There were: 16605 successful analyses from a total of 20001 trial failure surfaces 3396 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 2.08 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 137.42 4685.61 273.70 4718.62 174.34 4830.99 150.00 2.075 <-- Critical Surface 2 137.42 4685.61 273.17 4718.60 173.95 4831.09 150.00 2.095 3 136.89 4685.34 271.59 4718.55 172.41 4831.08 150.00 2.103 4 136.89 4685.34 272.12 4718.57 172.81 4830.98 150.00 2.107 5 136.89 4685.34 273.70 4718.62 172.91 4835.16 154.08 2.109 6 137.42 4685.61 272.65 4718.58 173.55 4831.19 150.00 2.109 7 137.95 4685.87 273.70 4718.62 174.69 4831.30 150.00 2.113 8 136.37 4685.08 270.02 4718.50 170.87 4831.06 150.00 2.119 9 136.37 4685.08 272.12 4718.57 171.36 4835.14 154.08 2.120 10 136.89 4685.34 271.07 4718.53 172.01 4831.17 150.00 2.121 11 136.89 4685.34 273.17 4718.60 172.51 4835.25 154.08 2.125 12 137.42 4685.61 272.12 4718.57 173.16 4831.29 150.00 2.125 13 137.95 4685.87 273.17 4718.60 174.30 4831.40 150.00 2.129 14 135.84 4684.82 268.44 4718.45 169.32 4831.04 150.00 2.134 15 136.89 4685.34 270.54 4718.52 171.62 4831.27 150.00 2.136 16 136.37 4685.08 269.49 4718.48 170.47 4831.15 150.00 2.137 17 136.37 4685.08 271.59 4718.55 170.96 4835.23 154.08 2.137 18 135.84 4684.82 272.65 4718.58 170.32 4839.18 158.16 2.137 19 136.89 4685.34 272.65 4718.58 172.11 4835.35 154.08 2.140 20 136.37 4685.08 273.70 4718.62 171.47 4839.30 158.16 2.140 21 137.42 4685.61 271.59 4718.55 172.76 4831.38 150.00 2.141 22 137.95 4685.87 272.65 4718.58 173.90 4831.50 150.00 2.145 23 137.42 4685.61 273.70 4718.62 173.26 4835.46 154.08 2.146 24 135.84 4684.82 270.54 4718.52 169.81 4835.11 154.08 2.148 25 135.84 4684.82 267.91 4718.43 168.92 4831.13 150.00 2.148 26 136.37 4685.08 268.96 4718.47 170.07 4831.25 150.00 2.148 27 135.84 4684.82 272.12 4718.57 169.91 4839.27 158.16 2.149 28 135.32 4684.56 266.86 4718.40 167.76 4831.00 150.00 2.150 29 135.84 4684.82 270.02 4718.50 169.41 4835.20 154.08 2.151 30 136.89 4685.34 270.02 4718.50 171.22 4831.36 150.00 2.151 31 138.47 4686.13 273.70 4718.62 175.04 4831.60 150.00 2.152 32 135.32 4684.56 268.96 4718.47 168.25 4835.08 154.08 2.153 33 136.37 4685.08 270.54 4718.52 171.27 4830.96 150.00 2.153 34 136.89 4685.34 272.12 4718.57 171.71 4835.44 154.08 2.155 35 136.37 4685.08 273.17 4718.60 171.07 4839.39 158.16 2.155 36 136.37 4685.08 271.07 4718.53 170.56 4835.32 154.08 2.156 37 135.32 4684.56 271.07 4718.53 168.75 4839.14 158.16 2.157 38 137.95 4685.87 272.12 4718.57 173.51 4831.59 150.00 2.160 39 136.37 4685.08 268.44 4718.45 169.66 4831.34 150.00 2.162 40 137.42 4685.61 271.07 4718.53 172.36 4831.48 150.00 2.162 41 135.32 4684.56 266.33 4718.38 167.36 4831.09 150.00 2.162 42 137.42 4685.61 273.17 4718.60 172.86 4835.56 154.08 2.162 43 135.84 4684.82 267.38 4718.42 168.51 4831.22 150.00 2.163 44 135.84 4684.82 269.49 4718.48 169.00 4835.29 154.08 2.165 45 136.89 4685.34 269.49 4718.48 170.82 4831.46 150.00 2.166 46 136.37 4685.08 270.54 4718.52 170.16 4835.41 154.08 2.166 47 136.89 4685.34 271.59 4718.55 171.31 4835.53 154.08 2.167 48 135.32 4684.56 268.44 4718.45 167.85 4835.17 154.08 2.167 49 135.84 4684.82 271.59 4718.55 169.51 4839.36 158.16 2.168 50 136.37 4685.08 272.65 4718.58 171.76 4835.04 154.08 2.168 51 138.47 4686.13 273.17 4718.60 174.65 4831.70 150.00 2.168 52 135.32 4684.56 270.54 4718.52 168.35 4839.23 158.16 2.169 53 135.84 4684.82 273.70 4718.62 170.03 4843.42 162.24 2.170 54 135.32 4684.56 272.65 4718.58 168.87 4843.29 162.24 2.172 55 137.42 4685.61 270.54 4718.52 171.96 4831.57 150.00 2.173 56 136.89 4685.34 273.70 4718.62 171.83 4839.60 158.16 2.173 57 135.84 4684.82 266.86 4718.40 168.11 4831.31 150.00 2.174 58 135.32 4684.56 265.81 4718.37 166.95 4831.18 150.00 2.175 59 137.95 4685.87 271.59 4718.55 173.11 4831.69 150.00 2.175 60 136.37 4685.08 272.65 4718.58 170.67 4839.48 158.16 2.175 61 136.37 4685.08 267.91 4718.43 169.26 4831.43 150.00 2.176 62 135.84 4684.82 268.96 4718.47 168.60 4835.38 154.08 2.178 63 134.79 4684.29 264.75 4718.33 165.79 4831.06 150.00 2.179 64 136.89 4685.34 268.96 4718.47 170.41 4831.55 150.00 2.179 65 136.37 4685.08 270.02 4718.50 169.76 4835.50 154.08 2.180 66 136.37 4685.08 272.12 4718.57 170.27 4839.57 158.16 2.181 67 137.95 4685.87 273.70 4718.62 173.61 4835.76 154.08 2.181 68 135.32 4684.56 267.91 4718.43 167.44 4835.25 154.08 2.181 69 135.84 4684.82 271.07 4718.53 169.11 4839.44 158.16 2.182 70 134.79 4684.29 266.86 4718.40 166.28 4835.12 154.08 2.183 71 135.32 4684.56 270.02 4718.50 167.94 4839.32 158.16 2.183 72 136.89 4685.34 271.07 4718.53 170.91 4835.62 154.08 2.184 73 135.84 4684.82 273.17 4718.60 169.63 4843.51 162.24 2.184 74 137.42 4685.61 270.02 4718.50 171.56 4831.67 150.00 2.184 75 135.32 4684.56 272.12 4718.57 168.46 4843.38 162.24 2.185 76 137.42 4685.61 272.65 4718.58 172.47 4835.65 154.08 2.186 77 135.84 4684.82 266.33 4718.38 167.70 4831.40 150.00 2.186 78 134.79 4684.29 268.96 4718.47 166.78 4839.19 158.16 2.187 79 135.32 4684.56 265.28 4718.35 166.54 4831.27 150.00 2.187 80 137.95 4685.87 271.07 4718.53 172.71 4831.78 150.00 2.187 81 136.89 4685.34 273.17 4718.60 171.43 4839.69 158.16 2.187 82 134.79 4684.29 271.07 4718.53 167.29 4843.25 162.24 2.188 83 136.37 4685.08 267.38 4718.42 168.86 4831.52 150.00 2.188 84 137.42 4685.61 272.12 4718.57 172.07 4835.74 154.08 2.189 85 135.32 4684.56 273.17 4718.60 169.27 4843.21 162.24 2.189 86 134.79 4684.29 264.23 4718.32 165.38 4831.14 150.00 2.191 87 136.89 4685.34 268.44 4718.45 170.01 4831.64 150.00 2.192 88 135.84 4684.82 268.44 4718.45 168.20 4835.47 154.08 2.192 89 136.37 4685.08 269.49 4718.48 169.36 4835.59 154.08 2.193 90 139.00 4686.39 273.70 4718.62 175.39 4831.91 150.00 2.194 91 135.84 4684.82 272.65 4718.58 169.23 4843.59 162.24 2.195 92 138.47 4686.13 272.65 4718.58 174.25 4831.80 150.00 2.195 93 137.95 4685.87 273.17 4718.60 173.22 4835.86 154.08 2.195 94 135.84 4684.82 270.54 4718.52 168.70 4839.53 158.16 2.195 95 135.32 4684.56 269.49 4718.48 167.54 4839.40 158.16 2.195 96 134.79 4684.29 266.33 4718.38 165.87 4835.21 154.08 2.195 97 136.37 4685.08 271.59 4718.55 169.87 4839.66 158.16 2.197 98 136.89 4685.34 270.54 4718.52 170.51 4835.71 154.08 2.197 99 135.32 4684.56 267.38 4718.42 167.03 4835.34 154.08 2.197 Critical Failure Surface (circle 1) Intersects: XL: 137.42 YL: Centre: XC: 174.34 YC: Generated failure surface: (20 points) 137.42 4681.14 175.43 4684.35 213.37 4697.12 248.77 4718.62 4685.61 4680.99 4686.16 4700.76 144.91 183.11 220.74 255.34 4685.61 4830.99 4683.91 4681.25 4688.35 4704.74 XR: 273.70 YR: 4718.62 Radius: R: 150.00 152.47 190.76 227.97 261.69 4682.59 4681.89 4690.91 4709.05 Slice Geometry and Properties - Critical Failure Surface (circle 1, 42 slices) 160.10 198.37 235.07 267.82 4681.67 4682.93 4693.83 4713.68 167.76 205.91 242.01 273.70 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 137.42 4.54 -12.8 3.54 3.63 1 10.00 35.0 522.52 0.00 161.05 1.11 2 140.96 13.63 -12.8 3.54 3.63 1 10.00 35.0 1567.77 0.00 480.82 1.11 3 144.50 25.90 -10.2 3.99 4.05 2 1000.00 0.0 2986.32 93.06 835.35 1.02 4 148.49 36.59 -9.9 3.99 4.05 2 1000.00 0.0 4229.02 267.81 1144.37 1.01 5 152.47 44.58 -6.9 3.81 3.84 2 1000.00 0.0 5158.41 392.33 1411.96 1.01 6 156.29 53.59 -6.9 3.81 3.84 2 1000.00 0.0 6202.59 503.10 1685.87 1.01 7 160.10 62.54 -4.0 3.83 3.84 2 1000.00 0.0 7239.39 590.37 1923.77 1.00 8 163.93 70.88 -4.0 3.83 3.84 2 1000.00 0.0 8203.24 654.36 2175.50 1.00 9 167.76 75.86 -1.1 3.69 3.69 2 1000.00 0.0 8777.67 667.84 2386.41 1.00 10 171.45 82.91 -1.0 3.69 3.69 2 1000.00 0.0 9589.08 683.47 2606.13 1.00 11 175.14 97.02 1.7 3.98 3.99 2 1000.00 0.0 11215.55 733.56 2801.29 1.00 12 179.12 104.40 1.9 3.98 3.99 2 1000.00 0.0 12062.71 700.97 3012.18 1.00 13 183.11 106.84 4.8 3.83 3.84 2 1000.00 0.0 12336.40 620.90 3184.11 1.00 14 186.93 112.91 4.8 3.83 3.84 2 1000.00 0.0 13027.53 543.69 3364.77 1.00 15 190.76 117.91 7.7 3.80 3.84 2 1000.00 0.0 13594.58 443.10 3508.12 1.01 16 194.56 123.15 7.8 3.80 3.84 2 1000.00 0.0 14187.74 318.99 3663.98 1.01 17 198.37 27.28 10.7 0.82 0.84 2 1000.00 0.0 3141.79 51.95 3730.79 1.02 18 199.19 129.22 10.7 3.81 3.88 2 1000.00 0.0 14816.51 135.06 3797.04 1.02 19 203.00 36.25 10.7 1.05 1.07 2 1000.00 0.0 4139.38 6.67 3837.05 1.02 20 204.05 63.42 10.7 1.86 1.89 1 10.00 35.0 7240.34 0.00 3661.82 0.96 21 205.91 124.99 13.6 3.73 3.84 1 10.00 35.0 14267.25 0.00 3533.86 0.95 22 209.64 121.62 13.6 3.73 3.84 1 10.00 35.0 13879.43 0.00 3437.63 0.95 23 213.37 99.00 16.6 3.13 3.26 1 10.00 35.0 11295.79 0.00 3283.72 0.95 24 216.50 92.30 16.6 3.00 3.13 4 0.00 45.0 9589.31 2337.22 2889.54 0.91 25 219.50 37.22 16.6 1.24 1.29 1 10.00 35.0 4742.77 2157.93 3641.25 0.95 26 220.74 106.10 19.5 3.62 3.84 1 10.00 35.0 13510.57 6232.07 3506.41 0.95 27 224.35 101.47 19.5 3.62 3.84 1 10.00 35.0 12908.18 5925.37 3349.20 0.95 28 227.97 94.63 22.4 3.55 3.84 1 10.00 35.0 12024.54 5596.69 3150.50 0.95 29 231.52 89.43 22.4 3.55 3.84 1 10.00 35.0 11349.09 5245.99 2972.28 0.95 30 235.07 82.04 25.3 3.47 3.84 1 10.00 35.0 10393.99 4873.81 2755.91 0.95 31 238.54 76.33 25.4 3.47 3.84 1 10.00 35.0 9652.51 4480.22 2557.44 0.95 32 242.01 68.53 28.3 3.38 3.84 1 10.00 35.0 8644.79 4065.36 2324.56 0.96 33 245.39 62.38 28.3 3.38 3.84 1 10.00 35.0 7845.38 3629.39 2107.05 0.96 34 248.77 54.33 31.2 3.28 3.84 1 10.00 35.0 6806.33 3173.33 1858.94 0.97 35 252.06 47.79 31.2 3.28 3.84 1 10.00 35.0 5957.03 2696.48 1623.14 0.97 36 255.34 39.66 34.2 3.18 3.84 1 10.00 35.0 4908.51 2200.23 1361.23 0.98 37 258.52 32.82 34.1 3.18 3.84 1 10.00 35.0 4018.50 1683.89 1108.27 0.98 38 261.69 17.04 37.1 2.01 2.51 1 10.00 35.0 2058.53 814.89 880.56 1.00 39 263.70 25.72 37.1 4.12 5.16 1 10.00 35.0 3014.09 927.50 616.57 1.00 40 267.82 6.48 40.0 1.57 2.06 1 10.00 35.0 712.15 84.74 358.43 1.02 41 269.39 4.68 40.0 1.67 2.18 1 10.00 35.0 485.33 0.00 223.66 1.02 42 271.06 2.81 40.0 2.64 3.45 5 50.00 25.0 281.26 0.00 72.65 1.10 X -S Area: 2776.78 Path Length: 145.89 X -S Weight: 328583.91 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS3-EQ.gmf Processed: 24 Feb 2024 13:46:58 DATA: Analysis 1 - Case SS -3 - Pseudo -Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystoe Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 115.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4721.00 365.00 4721.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4716.40 216.50 4716.40 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 216.50 4718.40 Profile: 4 (2 points) 219.50 4716.40 Profile: 5 (3 points) 0.00 4684.00 Profile: 6 (2 points) 219.50 4684.00 Profile: 7 (4 points) 0.00 4681.00 Slope Surface (8 points) 0.00 4684.00 4718.30 263.70 4718.30 219.50 4718.40 Material beneath: 1 - Sand 365.00 4716.40 Material beneath: 2 - Weathered 134.30 4684.00 Material beneath: 2 - Weathered 365.00 4684.00 Material beneath: 3 - Stable Claystone 134.20 4681.00 216.50 Phreatic Surface (5 points) 0.00 4715.00 Failure Surface 4684.00 134.20 314.40 134.20 4684.00 4719.90 4684.00 and Gravel Claystoe 216.50 Claystoe Bedrock 4684.00 Bedrock Bedrock 4681.00 203.00 4718.30 365.00 4720.50 216.50 4684.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 134.00 YL: 4684.00 XR: 268.70 YR: Centre: XC: 141.84 YC: 4933.88 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR 10.00 10.00 20 20 R 200.00 50 RESULTS: Analysis 1 - Case SS -3 - Pseudo -Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques 365.00 216.50 4681.20 4718.30 219.50 4715.00 4718.46 250.00 219.50 365.00 Initial failure surface approximation - Factor of Safety: 2.102 Analysis Summary There were: 16605 successful analyses from a total of 20001 trial failure surfaces 3396 analyses terminated due to unacceptable geometry 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 1 137.42 4685.61 273.70 4718.62 174.34 4830.99 150.00 1.588 <-- Critical Surface 2 137.42 4685.61 273.17 4718.60 173.95 4831.09 150.00 1.606 3 137.95 4685.87 273.70 4718.62 174.69 4831.30 150.00 1.616 4 136.89 4685.34 273.70 4718.62 172.91 4835.16 154.08 1.616 5 137.42 4685.61 272.65 4718.58 173.55 4831.19 150.00 1.618 6 136.89 4685.34 271.59 4718.55 172.41 4831.08 150.00 1.619 7 136.89 4685.34 272.12 4718.57 172.81 4830.98 150.00 1.621 8 137.95 4685.87 273.17 4718.60 174.30 4831.40 150.00 1.630 9 136.89 4685.34 273.17 4718.60 172.51 4835.25 154.08 1.630 10 137.42 4685.61 272.12 4718.57 173.16 4831.29 150.00 1.632 11 136.37 4685.08 272.12 4718.57 171.36 4835.14 154.08 1.632 12 136.89 4685.34 271.07 4718.53 172.01 4831.17 150.00 1.634 13 136.37 4685.08 270.02 4718.50 170.87 4831.06 150.00 1.637 14 136.37 4685.08 273.70 4718.62 171.47 4839.30 158.16 1.642 15 137.42 4685.61 273.70 4718.62 173.26 4835.46 154.08 1.643 16 136.89 4685.34 272.65 4718.58 172.11 4835.35 154.08 1.644 17 137.95 4685.87 272.65 4718.58 173.90 4831.50 150.00 1.644 18 138.47 4686.13 273.70 4718.62 175.04 4831.60 150.00 1.644 19 135.84 4684.82 272.65 4718.58 170.32 4839.18 158.16 1.646 20 137.42 4685.61 271.59 4718.55 172.76 4831.38 150.00 1.646 21 136.37 4685.08 271.59 4718.55 170.96 4835.23 154.08 1.647 22 136.89 4685.34 270.54 4718.52 171.62 4831.27 150.00 1.647 23 136.37 4685.08 269.49 4718.48 170.47 4831.15 150.00 1.653 24 135.84 4684.82 268.44 4718.45 169.32 4831.04 150.00 1.655 25 136.37 4685.08 273.17 4718.60 171.07 4839.39 158.16 1.655 26 135.84 4684.82 272.12 4718.57 169.91 4839.27 158.16 1.657 27 136.89 4685.34 272.12 4718.57 171.71 4835.44 154.08 1.657 28 137.95 4685.87 272.12 4718.57 173.51 4831.59 150.00 1.657 29 137.42 4685.61 273.17 4718.60 172.86 4835.56 154.08 1.657 30 138.47 4686.13 273.17 4718.60 174.65 4831.70 150.00 1.658 31 135.84 4684.82 270.54 4718.52 169.81 4835.11 154.08 1.660 32 136.89 4685.34 270.02 4718.50 171.22 4831.36 150.00 1.661 33 136.37 4685.08 271.07 4718.53 170.56 4835.32 154.08 1.663 34 136.37 4685.08 270.54 4718.52 171.27 4830.96 150.00 1.663 35 136.37 4685.08 268.96 4718.47 170.07 4831.25 150.00 1.664 36 137.42 4685.61 271.07 4718.53 172.36 4831.48 150.00 1.664 37 135.84 4684.82 270.02 4718.50 169.41 4835.20 154.08 1.664 38 136.89 4685.34 273.70 4718.62 171.83 4839.60 158.16 1.666 39 135.32 4684.56 271.07 4718.53 168.75 4839.14 158.16 1.667 40 135.84 4684.82 273.70 4718.62 170.03 4843.42 162.24 1.667 41 137.95 4685.87 273.70 4718.62 173.61 4835.76 154.08 1.668 42 136.89 4685.34 271.59 4718.55 171.31 4835.53 154.08 1.668 43 135.84 4684.82 267.91 4718.43 168.92 4831.13 150.00 1.668 44 136.37 4685.08 272.65 4718.58 171.76 4835.04 154.08 1.669 45 137.95 4685.87 271.59 4718.55 173.11 4831.69 150.00 1.670 46 135.32 4684.56 268.96 4718.47 168.25 4835.08 154.08 1.671 47 135.84 4684.82 271.59 4718.55 169.51 4839.36 158.16 1.672 48 136.37 4685.08 270.54 4718.52 170.16 4835.41 154.08 1.673 49 136.37 4685.08 272.65 4718.58 170.67 4839.48 158.16 1.673 50 136.89 4685.34 269.49 4718.48 170.82 4831.46 150.00 1.673 51 139.00 4686.39 273.70 4718.62 175.39 4831.91 150.00 1.674 52 137.42 4685.61 270.54 4718.52 171.96 4831.57 150.00 1.674 53 135.32 4684.56 266.86 4718.40 167.76 4831.00 150.00 1.675 54 135.32 4684.56 272.65 4718.58 168.87 4843.29 162.24 1.675 55 136.37 4685.08 268.44 4718.45 169.66 4831.34 150.00 1.675 56 135.84 4684.82 269.49 4718.48 169.00 4835.29 154.08 1.677 57 137.42 4685.61 272.65 4718.58 172.47 4835.65 154.08 1.678 58 135.32 4684.56 270.54 4718.52 168.35 4839.23 158.16 1.679 59 136.89 4685.34 273.17 4718.60 171.43 4839.69 158.16 1.679 60 136.37 4685.08 272.12 4718.57 170.27 4839.57 158.16 1.679 61 135.84 4684.82 273.17 4718.60 169.63 4843.51 162.24 1.680 62 138.47 4686.13 272.65 4718.58 174.25 4831.80 150.00 1.680 63 137.95 4685.87 273.17 4718.60 173.22 4835.86 154.08 1.681 64 137.42 4685.61 272.12 4718.57 172.07 4835.74 154.08 1.681 65 135.84 4684.82 267.38 4718.42 168.51 4831.22 150.00 1.681 66 137.95 4685.87 271.07 4718.53 172.71 4831.78 150.00 1.682 67 136.89 4685.34 271.07 4718.53 170.91 4835.62 154.08 1.683 68 135.32 4684.56 268.44 4718.45 167.85 4835.17 154.08 1.683 69 137.42 4685.61 270.02 4718.50 171.56 4831.67 150.00 1.684 70 138.47 4686.13 272.12 4718.57 173.86 4831.90 150.00 1.684 71 135.84 4684.82 271.07 4718.53 169.11 4839.44 158.16 1.685 72 136.37 4685.08 270.02 4718.50 169.76 4835.50 154.08 1.685 73 135.32 4684.56 272.12 4718.57 168.46 4843.38 162.24 1.686 74 136.89 4685.34 268.96 4718.47 170.41 4831.55 150.00 1.686 75 135.32 4684.56 266.33 4718.38 167.36 4831.09 150.00 1.686 76 135.32 4684.56 273.17 4718.60 169.27 4843.21 162.24 1.687 77 136.37 4685.08 267.91 4718.43 169.26 4831.43 150.00 1.688 78 135.84 4684.82 268.96 4718.47 168.60 4835.38 154.08 1.688 79 136.37 4685.08 273.70 4718.62 170.39 4843.72 162.24 1.688 80 137.42 4685.61 273.70 4718.62 172.19 4839.90 158.16 1.690 81 135.84 4684.82 272.65 4718.58 169.23 4843.59 162.24 1.690 82 135.32 4684.56 270.02 4718.50 167.94 4839.32 158.16 1.691 83 136.89 4685.34 272.65 4718.58 171.03 4839.78 158.16 1.691 84 135.84 4684.82 266.86 4718.40 168.11 4831.31 150.00 1.692 85 135.32 4684.56 273.70 4718.62 168.59 4847.52 166.33 1.692 86 136.37 4685.08 271.59 4718.55 169.87 4839.66 158.16 1.693 87 134.79 4684.29 271.07 4718.53 167.29 4843.25 162.24 1.694 88 139.00 4686.39 273.17 4718.60 175.00 4832.01 150.00 1.695 89 136.89 4685.34 270.54 4718.52 170.51 4835.71 154.08 1.695 90 138.47 4686.13 273.70 4718.62 173.97 4836.07 154.08 1.695 91 135.32 4684.56 267.91 4718.43 167.44 4835.25 154.08 1.696 92 135.84 4684.82 270.54 4718.52 168.70 4839.53 158.16 1.697 93 136.37 4685.08 269.49 4718.48 169.36 4835.59 154.08 1.697 94 138.47 4686.13 271.59 4718.55 173.46 4831.99 150.00 1.697 95 137.95 4685.87 272.65 4718.58 172.82 4835.95 154.08 1.697 96 136.89 4685.34 268.44 4718.45 170.01 4831.64 150.00 1.697 97 135.32 4684.56 265.81 4718.37 166.95 4831.18 150.00 1.698 98 135.32 4684.56 271.59 4718.55 168.06 4843.46 162.24 1.698 99 134.79 4684.29 273.17 4718.60 167.82 4847.31 166.33 1.698 Critical Failure Surface (circle 1) Intersects: Centre: XL: XC: 137.42 174.34 YL: YC: Generated failure surface: (20 points) 137.42 4681.14 175.43 4684.35 213.37 4697.12 248.77 4718.62 4685.61 4680.99 4686.16 4700.76 144.91 183.11 220.74 255.34 4685.61 4830.99 4683.91 4681.25 4688.35 4704.74 XR: 273.70 YR: 4718.62 Radius: R: 150.00 152.47 190.76 227.97 261.69 4682.59 4681.89 4690.91 4709.05 Slice Geometry and Properties - Critical Failure Surface (circle 1, 42 slices) Slice Test Factor X -S Base 160.10 198.37 235.07 267.82 4681.67 4682.93 4693.83 4713.68 167.76 205.91 242.01 273.70 PoreWater Normal X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress 1 137.42 4.54 -12.8 3.54 3.63 1 10.00 35.0 522.52 0.00 165.62 1.14 2 140.96 13.63 -12.8 3.54 3.63 1 10.00 35.0 1567.77 0.00 493.72 1.14 3 144.50 25.90 -10.2 3.99 4.05 2 1000.00 0.0 2978.98 93.06 859.96 1.02 4 148.49 36.59 -9.9 3.99 4.05 2 1000.00 0.0 4207.88 267.81 1164.71 1.01 5 152.47 44.58 -6.9 3.81 3.84 2 1000.00 0.0 5127.20 392.33 1421.68 1.01 6 156.29 53.59 -6.9 3.81 3.84 2 1000.00 0.0 6162.57 503.10 1693.26 1.01 7 160.10 62.54 -4.0 3.83 3.84 2 1000.00 0.0 7192.20 590.37 1921.73 1.00 8 163.93 70.88 -4.0 3.83 3.84 2 1000.00 0.0 8150.93 654.36 2172.13 1.00 9 167.76 75.86 -1.1 3.69 3.69 2 1000.00 0.0 8724.17 667.84 2374.63 1.00 10 171.45 82.91 -1.0 3.69 3.69 2 1000.00 0.0 9534.33 683.47 2593.99 1.00 11 175.14 97.02 1.7 3.98 3.99 2 1000.00 0.0 11156.80 733.56 2782.23 1.00 12 179.12 104.40 1.9 3.98 3.99 2 1000.00 0.0 12006.57 700.97 2993.24 1.00 13 183.11 106.84 4.8 3.83 3.84 2 1000.00 0.0 12286.83 620.90 3158.71 1.00 14 186.93 112.91 4.8 3.83 3.84 2 1000.00 0.0 12984.12 543.69 3340.98 1.00 15 190.76 117.91 7.7 3.80 3.84 2 1000.00 0.0 13559.40 443.10 3478.78 1.01 16 194.56 123.15 7.8 3.80 3.84 2 1000.00 0.0 14162.41 318.99 3637.22 1.01 17 198.37 27.28 10.7 0.82 0.84 2 1000.00 0.0 3137.70 51.95 3697.93 1.02 18 199.19 129.22 10.7 3.81 3.88 2 1000.00 0.0 14805.88 135.06 3766.41 1.02 19 203.00 36.25 10.7 1.05 1.07 2 1000.00 0.0 4138.86 6.67 3808.71 1.02 20 204.05 63.42 10.7 1.86 1.89 1 10.00 35.0 7240.34 0.00 3595.64 0.94 21 205.91 124.99 13.6 3.73 3.84 1 10.00 35.0 14267.25 0.00 3453.63 0.93 22 209.64 121.62 13.6 3.73 3.84 1 10.00 35.0 13879.43 0.00 3359.54 0.93 23 213.37 99.00 16.6 3.13 3.26 1 10.00 35.0 11295.79 0.00 3194.15 0.92 24 216.50 92.30 16.6 3.00 3.13 4 0.00 45.0 9589.31 2337.22 2810.34 0.88 25 219.50 37.22 16.6 1.24 1.29 1 10.00 35.0 4742.77 2157.93 3587.43 0.92 26 220.74 106.10 19.5 3.62 3.84 1 10.00 35.0 13510.57 6232.07 3446.38 0.92 27 224.35 101.47 19.5 3.62 3.84 1 10.00 35.0 12908.18 5925.37 3291.62 0.92 28 227.97 94.63 22.4 3.55 3.84 1 10.00 35.0 12024.54 5596.69 3088.91 0.92 29 231.52 89.43 22.4 3.55 3.84 1 10.00 35.0 11349.09 5245.99 2913.83 0.92 30 235.07 82.04 25.3 3.47 3.84 1 10.00 35.0 10393.99 4873.81 2695.12 0.92 31 238.54 76.33 25.4 3.47 3.84 1 10.00 35.0 9652.51 4480.22 2500.52 0.92 32 242.01 68.53 28.3 3.38 3.84 1 10.00 35.0 8644.79 4065.36 2267.01 0.92 33 245.39 62.38 28.3 3.38 3.84 1 10.00 35.0 7845.38 3629.39 2054.19 0.92 34 248.77 54.33 31.2 3.28 3.84 1 10.00 35.0 6806.33 3173.33 1807.19 0.92 35 252.06 47.79 31.2 3.28 3.84 1 10.00 35.0 5957.03 2696.48 1576.93 0.92 36 255.34 39.66 34.2 3.18 3.84 1 10.00 35.0 4908.51 2200.23 1317.91 0.93 37 258.52 32.82 34.1 3.18 3.84 1 10.00 35.0 4018.50 1683.89 1071.36 0.93 38 261.69 17.04 37.1 2.01 2.51 1 10.00 35.0 2058.53 814.89 847.11 0.94 39 263.70 25.72 37.1 4.12 5.16 1 10.00 35.0 3014.09 927.50 590.13 0.94 40 267.82 6.48 40.0 1.57 2.06 1 10.00 35.0 712.15 84.74 337.43 0.95 41 269.39 4.68 40.0 1.67 2.18 1 10.00 35.0 485.33 0.00 208.58 0.95 42 271.06 2.81 40.0 2.64 3.45 5 50.00 25.0 281.26 0.00 64.31 1.05 X -S Area: 2776.78 Path Length: 145.89 X -S Weight: 327992.78 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS4.gmf Processed: 24 Feb 2024 13:50:51 DATA: Analysis 1 - Case SS -4 - Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 105.00 Auto Saturated: 1000.00 0.0 115.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 115.00 Auto Saturated: 3000.00 0.0 128.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4721.00 300.00 4721.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4717.00 172.70 4717.00 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 172.70 4719.50 175.70 4719.50 Profile: 4 (2 points) Material beneath: 1 - Sand and Gravel 175.70 4717.00 300.00 4717.00 Profile: 5 (3 points) Material beneath: 2 - Weathered Sandstone Bedrock 0.00 4686.80 94.00 4687.00 172.70 4687.20 Profile: 6 (2 points) Material beneath: 2 - Weathered Sandstone Bedrock 175.70 4687.20 300.00 4687.30 Profile: 7 (4 points) Material beneath: 3 - Stable Sandstone Bedrock 0.00 4683.80 94.00 4684.00 172.70 4684.00 Slope Surface (7 points) 0.00 4686.80 4719.50 204.70 4719.30 Phreatic Surface (5 points) 0.00 4713.90 Failure Surface 4686.80 94.00 4687.00 300.00 4719.80 94.00 4687.00 159.20 172.70 300.00 4719.60 172.70 4687.20 175.70 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 94.00 YL: 4687.00 XR: 209.70 YR: Centre: XC: 100.52 YC: 4886.89 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 150.00 20 20 50 RESULTS: Analysis 1 - Case SS -4 - Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.671 Analysis Summary 4719.33 200.00 4684.30 4719.50 175.70 4713.90 300.00 There were: 16823 successful analyses from a total of 20001 trial failure surfaces 3178 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 2.21 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 96.37 4688.18 214.70 4719.35 127.77 4809.18 125.00 2.214 <-- Critical Surface 2 95.84 4687.92 213.65 4719.35 126.62 4809.07 125.00 2.217 3 95.32 4687.66 212.59 4719.34 125.46 4808.97 125.00 2.219 4 95.32 4687.66 214.17 4719.35 125.81 4812.04 128.06 2.225 5 95.84 4687.92 213.12 4719.34 126.20 4809.18 125.00 2.232 6 96.37 4688.18 214.17 4719.35 127.36 4809.28 125.00 2.232 7 95.84 4687.92 214.70 4719.35 126.55 4812.25 128.06 2.234 8 95.32 4687.66 212.07 4719.34 125.05 4809.07 125.00 2.234 9 95.32 4687.66 213.65 4719.35 125.39 4812.14 128.06 2.240 10 94.79 4687.39 212.59 4719.34 124.23 4812.03 128.06 2.245 11 95.84 4687.92 212.59 4719.34 125.79 4809.28 125.00 2.247 12 96.37 4688.18 213.65 4719.35 126.94 4809.39 125.00 2.247 13 95.32 4687.66 211.54 4719.34 124.63 4809.17 125.00 2.249 14 94.79 4687.39 214.17 4719.35 124.58 4815.09 131.12 2.250 15 96.89 4688.45 214.70 4719.35 128.10 4809.49 125.00 2.250 16 95.84 4687.92 214.17 4719.35 127.03 4808.97 125.00 2.251 17 95.84 4687.92 214.17 4719.35 126.13 4812.35 128.06 2.253 18 95.32 4687.66 213.12 4719.34 124.97 4812.24 128.06 2.255 19 94.79 4687.39 210.49 4719.33 123.46 4809.06 125.00 2.259 20 94.79 4687.39 212.07 4719.34 123.81 4812.12 128.06 2.260 21 95.32 4687.66 214.70 4719.35 125.33 4815.30 131.12 2.261 22 95.84 4687.92 212.07 4719.34 125.37 4809.38 125.00 2.261 23 96.89 4688.45 214.17 4719.35 127.68 4809.60 125.00 2.261 24 96.37 4688.18 213.12 4719.34 126.53 4809.49 125.00 2.262 25 95.32 4687.66 211.02 4719.33 124.21 4809.27 125.00 2.263 26 94.79 4687.39 213.65 4719.35 124.16 4815.19 131.12 2.265 27 96.37 4688.18 214.70 4719.35 126.88 4812.56 128.06 2.266 28 94.79 4687.39 209.96 4719.33 123.04 4809.16 125.00 2.267 29 95.84 4687.92 213.65 4719.35 125.72 4812.45 128.06 2.268 30 95.32 4687.66 212.59 4719.34 124.55 4812.34 128.06 2.269 31 94.79 4687.39 211.54 4719.34 123.38 4812.22 128.06 2.274 32 94.26 4687.13 208.91 4719.32 121.88 4809.04 125.00 2.274 33 95.32 4687.66 214.17 4719.35 124.91 4815.40 131.12 2.275 34 95.84 4687.92 211.54 4719.34 124.95 4809.48 125.00 2.275 35 96.37 4688.18 212.59 4719.34 126.11 4809.59 125.00 2.276 36 94.79 4687.39 213.12 4719.34 123.74 4815.28 131.12 2.279 37 96.89 4688.45 213.65 4719.35 127.27 4809.70 125.00 2.280 38 94.79 4687.39 209.44 4719.32 122.62 4809.26 125.00 2.280 39 95.32 4687.66 210.49 4719.33 123.79 4809.37 125.00 2.280 40 94.26 4687.13 210.49 4719.33 122.21 4812.10 128.06 2.280 41 95.84 4687.92 213.12 4719.34 125.30 4812.55 128.06 2.282 42 97.42 4688.71 214.70 4719.35 128.43 4809.80 125.00 2.283 43 95.32 4687.66 212.07 4719.34 124.13 4812.43 128.06 2.283 44 96.37 4688.18 214.17 4719.35 126.46 4812.66 128.06 2.283 45 94.79 4687.39 214.70 4719.35 124.11 4818.34 134.18 2.284 46 94.26 4687.13 212.07 4719.34 122.57 4815.16 131.12 2.286 47 94.26 4687.13 208.38 4719.32 121.45 4809.14 125.00 2.287 48 95.84 4687.92 211.02 4719.33 124.53 4809.58 125.00 2.288 49 95.84 4687.92 214.70 4719.35 125.66 4815.61 131.12 2.288 50 95.32 4687.66 209.96 4719.33 123.36 4809.47 125.00 2.288 51 93.74 4687.00 207.86 4719.32 120.82 4809.03 125.00 2.289 52 95.32 4687.66 213.65 4719.35 124.49 4815.49 131.12 2.289 53 96.37 4688.18 212.07 4719.34 125.69 4809.70 125.00 2.289 54 94.79 4687.39 211.02 4719.33 122.96 4812.32 128.06 2.289 55 94.26 4687.13 213.65 4719.35 122.93 4818.22 134.18 2.291 56 94.79 4687.39 208.91 4719.32 122.20 4809.35 125.00 2.292 57 94.79 4687.39 212.59 4719.34 123.32 4815.38 131.12 2.293 58 94.26 4687.13 209.96 4719.33 121.79 4812.20 128.06 2.293 59 96.89 4688.45 213.12 4719.34 126.85 4809.80 125.00 2.294 60 97.42 4688.71 214.17 4719.35 128.01 4809.91 125.00 2.294 61 95.84 4687.92 212.59 4719.34 124.88 4812.65 128.06 2.295 62 93.21 4687.00 207.33 4719.31 120.29 4809.03 125.00 2.295 63 93.74 4687.00 209.44 4719.32 121.15 4812.09 128.06 2.295 64 95.32 4687.66 211.54 4719.34 123.71 4812.53 128.06 2.296 65 96.37 4688.18 213.65 4719.35 126.05 4812.76 128.06 2.296 66 94.79 4687.39 214.17 4719.35 123.68 4818.43 134.18 2.298 67 94.26 4687.13 207.86 4719.32 121.02 4809.23 125.00 2.299 68 94.79 4687.39 210.49 4719.33 122.54 4812.41 128.06 2.299 69 96.89 4688.45 214.70 4719.35 127.21 4812.87 128.06 2.300 70 95.32 4687.66 209.44 4719.32 122.94 4809.57 125.00 2.300 71 94.79 4687.39 211.02 4719.33 123.88 4808.96 125.00 2.300 72 94.26 4687.13 211.54 4719.34 122.14 4815.26 131.12 2.301 73 95.84 4687.92 214.17 4719.35 125.24 4815.70 131.12 2.301 74 93.74 4687.00 211.02 4719.33 121.50 4815.15 131.12 2.301 75 93.74 4687.00 207.33 4719.31 120.39 4809.12 125.00 2.301 76 95.32 4687.66 213.12 4719.34 124.07 4815.59 131.12 2.302 77 96.37 4688.18 211.54 4719.34 125.28 4809.80 125.00 2.302 78 95.84 4687.92 210.49 4719.33 124.11 4809.68 125.00 2.302 79 93.21 4687.00 208.91 4719.32 120.63 4812.09 128.06 2.303 80 94.79 4687.39 208.38 4719.32 121.77 4809.45 125.00 2.304 81 92.68 4687.00 206.81 4719.31 119.77 4809.03 125.00 2.304 82 94.26 4687.13 213.12 4719.34 122.51 4818.31 134.18 2.304 83 94.79 4687.39 212.07 4719.34 122.89 4815.47 131.12 2.305 84 94.26 4687.13 209.44 4719.32 121.36 4812.29 128.06 2.306 85 93.74 4687.00 212.59 4719.34 121.87 4818.20 134.18 2.306 86 95.84 4687.92 212.07 4719.34 124.46 4812.74 128.06 2.307 87 95.32 4687.66 214.70 4719.35 124.44 4818.64 134.18 2.307 88 93.74 4687.00 208.91 4719.32 120.73 4812.18 128.06 2.308 89 96.89 4688.45 212.59 4719.34 126.44 4809.91 125.00 2.308 90 95.32 4687.66 211.02 4719.33 123.29 4812.63 128.06 2.309 91 94.26 4687.13 214.70 4719.35 122.88 4821.36 137.24 2.309 92 93.21 4687.00 210.49 4719.33 120.98 4815.15 131.12 2.309 93 93.21 4687.00 206.81 4719.31 119.86 4809.12 125.00 2.309 94 97.42 4688.71 213.65 4719.35 127.60 4810.01 125.00 2.309 95 96.37 4688.18 213.12 4719.34 125.63 4812.86 128.06 2.309 96 93.74 4687.00 206.81 4719.31 119.96 4809.22 125.00 2.309 97 92.68 4687.00 208.38 4719.32 120.10 4812.09 128.06 2.310 98 93.74 4687.00 214.17 4719.35 122.24 4821.25 137.24 2.310 99 94.26 4687.13 207.33 4719.31 120.60 4809.33 125.00 2.310 Critical Failure Surface (circle 1) Intersects: XL: 96.37 YL: Centre: XC: 127.77 YC: Generated failure surface: (20 points) 96.37 4684.27 129.68 4687.48 162.85 4699.47 193.50 4719.35 4688.18 4684.19 4689.20 4702.85 102.92 136.40 169.26 199.12 4688.18 4809.18 4686.67 4684.47 4691.26 4706.54 XR: 214.70 YR: 4719.35 Radius: R: 125.00 109.55 143.10 175.54 204.54 4685.51 4685.12 4693.66 4710.53 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) 116.23 149.75 181.69 209.74 4684.71 4686.12 4696.40 4714.80 122.95 156.34 187.68 214.70 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 96.37 2.33 -13.0 2.52 2.59 1 10.00 35.0 267.51 0.00 115.56 1.11 2 98.89 6.97 -13.0 2.52 2.59 1 10.00 35.0 802.11 0.00 344.23 1.11 3 101.41 6.41 -13.0 1.51 1.55 2 1000.00 0.0 737.57 17.12 592.02 1.03 4 102.92 19.59 -9.9 3.31 3.36 2 1000.00 0.0 2253.19 135.94 758.82 1.02 5 106.24 27.01 -9.9 3.31 3.36 2 1000.00 0.0 3105.74 259.37 1016.12 1.02 6 109.55 34.42 -6.8 3.34 3.36 2 1000.00 0.0 3957.89 364.13 1238.89 1.01 7 112.89 41.34 -6.8 3.34 3.36 2 1000.00 0.0 4753.64 450.05 1477.15 1.01 8 116.23 48.21 -3.8 3.36 3.36 2 1000.00 0.0 5543.97 517.09 1680.89 1.00 9 119.59 54.58 -3.8 3.36 3.36 2 1000.00 0.0 6277.13 565.06 1899.27 1.00 10 122.95 60.79 -0.7 3.36 3.36 2 1000.00 0.0 6990.32 594.08 2082.99 1.00 11 126.31 66.58 -0.7 3.36 3.36 2 1000.00 0.0 7656.27 604.02 2280.93 1.00 12 129.68 72.00 2.4 3.36 3.36 2 1000.00 0.0 8280.30 595.10 2444.15 1.00 13 133.04 77.18 2.4 3.36 3.36 2 1000.00 0.0 8875.14 567.02 2621.03 1.00 14 136.40 81.73 5.5 3.35 3.36 2 1000.00 0.0 9398.87 520.16 2762.92 1.00 15 139.75 86.26 5.5 3.35 3.36 2 1000.00 0.0 9919.61 454.15 2918.34 1.00 16 143.10 89.87 8.6 3.33 3.36 2 1000.00 0.0 10334.66 369.36 3038.20 1.01 17 146.43 93.73 8.6 3.33 3.36 2 1000.00 0.0 10778.71 265.62 3171.67 1.01 18 149.75 61.71 11.7 2.12 2.17 2 1000.00 0.0 7096.17 108.46 3249.19 1.02 19 151.88 63.03 11.7 2.12 2.17 2 1000.00 0.0 7248.33 49.87 3320.84 1.02 20 154.00 22.43 11.7 0.74 0.76 2 1000.00 0.0 2576.91 3.62 3366.41 1.02 21 154.74 48.70 11.7 1.60 1.63 1 10.00 35.0 5581.71 0.00 3275.37 0.96 22 156.34 88.61 14.8 2.86 2.95 1 10.00 35.0 10109.83 0.00 3266.32 0.95 23 159.20 112.71 14.8 3.65 3.78 1 10.00 35.0 12819.45 0.00 3240.10 0.95 24 162.85 95.59 17.8 3.20 3.36 1 10.00 35.0 10870.17 0.00 3078.99 0.95 25 166.05 92.22 17.8 3.20 3.36 1 10.00 35.0 10482.96 0.00 2969.41 0.95 26 169.26 95.01 20.9 3.44 3.69 1 10.00 35.0 10796.73 0.00 2795.85 0.96 27 172.70 16.92 20.9 0.63 0.68 4 0.00 45.0 1692.00 0.00 2285.06 0.91 28 173.33 58.05 20.9 2.21 2.37 4 0.00 45.0 6013.41 1390.59 2406.04 0.91 29 175.54 77.27 24.0 3.07 3.36 1 10.00 35.0 9673.03 4104.87 2907.51 0.96 30 178.62 73.00 24.0 3.07 3.36 1 10.00 35.0 9119.38 3817.41 2739.07 0.96 31 181.69 66.74 27.1 3.00 3.36 1 10.00 35.0 8316.31 3512.66 2533.22 0.97 32 184.68 62.08 27.1 3.00 3.36 1 10.00 35.0 7713.33 3191.09 2346.56 0.97 33 187.68 55.54 30.2 2.91 3.36 1 10.00 35.0 6874.39 2852.57 2125.87 0.98 34 190.59 50.56 30.2 2.91 3.36 1 10.00 35.0 6229.03 2497.46 1922.06 0.98 35 193.50 43.87 33.3 2.81 3.36 1 10.00 35.0 5372.75 2126.05 1687.81 0.99 36 196.31 38.63 33.3 2.81 3.36 1 10.00 35.0 4692.41 1738.81 1467.70 0.99 37 199.12 31.95 36.3 2.71 3.36 1 10.00 35.0 3838.44 1335.64 1221.31 1.01 38 201.83 26.50 36.4 2.71 3.36 1 10.00 35.0 3130.60 916.96 985.88 1.01 39 204.54 16.25 39.4 2.05 2.65 1 10.00 35.0 1875.86 418.44 756.19 1.03 40 206.59 12.82 39.4 2.05 2.65 1 10.00 35.0 1429.25 139.51 561.50 1.03 41 208.64 5.47 39.4 1.10 1.42 1 10.00 35.0 590.28 0.00 423.09 1.03 42 209.74 8.21 42.5 2.39 3.25 1 10.00 35.0 860.94 0.00 275.51 1.05 43 212.14 3.00 42.5 2.56 3.48 5 50.00 25.0 299.96 0.00 80.66 1.14 X -S Area: 2195.84 Path Length: 127.86 X -S Weight: 255236.25 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS4-EQ.gmf Processed: 24 Feb 2024 13:54:48 DATA: Analysis 1 - Case SS -4 - Pseudo -Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 105.00 Auto Saturated: 1000.00 0.0 115.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Sandstone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 115.00 Auto Saturated: 3000.00 0.0 128.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4721.00 300.00 4721.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4717.00 172.70 4717.00 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 172.70 4719.50 175.70 4719.50 Profile: 4 (2 points) Material beneath: 1 - Sand and Gravel 175.70 4717.00 300.00 4717.00 Profile: 5 (3 points) Material beneath: 2 - Weathered Sandstone Bedrock 0.00 4686.80 94.00 4687.00 172.70 4687.20 Profile: 6 (2 points) Material beneath: 2 - Weathered Sandstone Bedrock 175.70 4687.20 300.00 4687.30 Profile: 7 (4 points) Material beneath: 3 - Stable Sandstone Bedrock 0.00 4683.80 94.00 4684.00 172.70 4684.00 Slope Surface (7 points) 0.00 4686.80 4719.50 204.70 4719.30 Phreatic Surface (5 points) 0.00 4713.90 Failure Surface 94.00 4687.00 159.20 300.00 4719.80 4686.80 94.00 4687.00 172.70 300.00 4719.60 172.70 4687.20 175.70 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 94.00 YL: 4687.00 XR: 209.70 YR: Centre: XC: 100.52 YC: 4886.89 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 150.00 20 20 50 RESULTS: Analysis 1 - Case SS -4 - Pseudo -Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques 4719.33 200.00 4684.30 4719.50 175.70 4713.90 300.00 Initial failure surface approximation - Factor of Safety: 2.119 Analysis Summary There were: 16823 successful analyses from a total of 20001 trial failure surfaces 3178 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 1.73 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 96.37 4688.18 214.70 4719.35 127.77 4809.18 125.00 1.734 <-- Critical Surface 2 95.84 4687.92 213.65 4719.35 126.62 4809.07 125.00 1.742 3 95.32 4687.66 214.17 4719.35 125.81 4812.04 128.06 1.748 4 95.32 4687.66 212.59 4719.34 125.46 4808.97 125.00 1.749 5 96.37 4688.18 214.17 4719.35 127.36 4809.28 125.00 1.750 6 95.84 4687.92 214.70 4719.35 126.55 4812.25 128.06 1.751 7 95.84 4687.92 213.12 4719.34 126.20 4809.18 125.00 1.755 8 96.89 4688.45 214.70 4719.35 128.10 4809.49 125.00 1.760 9 95.32 4687.66 213.65 4719.35 125.39 4812.14 128.06 1.762 10 95.32 4687.66 212.07 4719.34 125.05 4809.07 125.00 1.763 11 96.37 4688.18 213.65 4719.35 126.94 4809.39 125.00 1.764 12 95.84 4687.92 214.17 4719.35 127.03 4808.97 125.00 1.768 13 95.84 4687.92 214.17 4719.35 126.13 4812.35 128.06 1.768 14 95.84 4687.92 212.59 4719.34 125.79 4809.28 125.00 1.769 15 94.79 4687.39 214.17 4719.35 124.58 4815.09 131.12 1.769 16 94.79 4687.39 212.59 4719.34 124.23 4812.03 128.06 1.771 17 96.89 4688.45 214.17 4719.35 127.68 4809.60 125.00 1.771 18 95.32 4687.66 214.70 4719.35 125.33 4815.30 131.12 1.774 19 96.37 4688.18 214.70 4719.35 126.88 4812.56 128.06 1.775 20 95.32 4687.66 213.12 4719.34 124.97 4812.24 128.06 1.775 21 95.32 4687.66 211.54 4719.34 124.63 4809.17 125.00 1.776 22 96.37 4688.18 213.12 4719.34 126.53 4809.49 125.00 1.777 23 95.84 4687.92 213.65 4719.35 125.72 4812.45 128.06 1.782 24 95.84 4687.92 212.07 4719.34 125.37 4809.38 125.00 1.782 25 94.79 4687.39 213.65 4719.35 124.16 4815.19 131.12 1.783 26 97.42 4688.71 214.70 4719.35 128.43 4809.80 125.00 1.784 27 94.79 4687.39 212.07 4719.34 123.81 4812.12 128.06 1.785 28 96.89 4688.45 213.65 4719.35 127.27 4809.70 125.00 1.787 29 95.32 4687.66 214.17 4719.35 124.91 4815.40 131.12 1.787 30 95.32 4687.66 212.59 4719.34 124.55 4812.34 128.06 1.788 31 95.32 4687.66 211.02 4719.33 124.21 4809.27 125.00 1.789 32 94.79 4687.39 210.49 4719.33 123.46 4809.06 125.00 1.789 33 96.37 4688.18 214.17 4719.35 126.46 4812.66 128.06 1.790 34 96.37 4688.18 212.59 4719.34 126.11 4809.59 125.00 1.790 35 95.84 4687.92 214.70 4719.35 125.66 4815.61 131.12 1.793 36 94.79 4687.39 214.70 4719.35 124.11 4818.34 134.18 1.794 37 95.84 4687.92 213.12 4719.34 125.30 4812.55 128.06 1.794 38 97.42 4688.71 214.17 4719.35 128.01 4809.91 125.00 1.795 39 95.84 4687.92 211.54 4719.34 124.95 4809.48 125.00 1.795 40 94.79 4687.39 213.12 4719.34 123.74 4815.28 131.12 1.796 41 94.79 4687.39 211.54 4719.34 123.38 4812.22 128.06 1.797 42 94.79 4687.39 209.96 4719.33 123.04 4809.16 125.00 1.798 43 96.89 4688.45 214.70 4719.35 127.21 4812.87 128.06 1.799 44 95.32 4687.66 213.65 4719.35 124.49 4815.49 131.12 1.800 45 96.89 4688.45 213.12 4719.34 126.85 4809.80 125.00 1.800 46 95.32 4687.66 212.07 4719.34 124.13 4812.43 128.06 1.801 47 96.37 4688.18 213.65 4719.35 126.05 4812.76 128.06 1.802 48 96.37 4688.18 212.07 4719.34 125.69 4809.70 125.00 1.802 49 95.32 4687.66 210.49 4719.33 123.79 4809.37 125.00 1.804 50 94.26 4687.13 213.65 4719.35 122.93 4818.22 134.18 1.805 51 95.84 4687.92 214.17 4719.35 125.24 4815.70 131.12 1.806 52 95.84 4687.92 212.59 4719.34 124.88 4812.65 128.06 1.807 53 95.84 4687.92 211.02 4719.33 124.53 4809.58 125.00 1.807 54 94.79 4687.39 214.17 4719.35 123.68 4818.43 134.18 1.807 55 94.26 4687.13 212.07 4719.34 122.57 4815.16 131.12 1.807 56 97.95 4688.97 214.70 4719.35 128.75 4810.12 125.00 1.808 57 97.42 4688.71 213.65 4719.35 127.60 4810.01 125.00 1.808 58 94.26 4687.13 210.49 4719.33 122.21 4812.10 128.06 1.809 59 94.79 4687.39 212.59 4719.34 123.32 4815.38 131.12 1.809 60 94.26 4687.13 208.91 4719.32 121.88 4809.04 125.00 1.809 61 94.79 4687.39 209.44 4719.32 122.62 4809.26 125.00 1.810 62 96.37 4688.18 214.70 4719.35 126.00 4815.92 131.12 1.811 63 95.32 4687.66 214.70 4719.35 124.44 4818.64 134.18 1.811 64 94.79 4687.39 211.02 4719.33 122.96 4812.32 128.06 1.812 65 95.32 4687.66 213.12 4719.34 124.07 4815.59 131.12 1.812 66 95.32 4687.66 211.54 4719.34 123.71 4812.53 128.06 1.813 67 95.32 4687.66 209.96 4719.33 123.36 4809.47 125.00 1.813 68 96.89 4688.45 212.59 4719.34 126.44 4809.91 125.00 1.813 69 96.89 4688.45 214.17 4719.35 126.79 4812.97 128.06 1.814 70 96.37 4688.18 213.12 4719.34 125.63 4812.86 128.06 1.814 71 96.37 4688.18 211.54 4719.34 125.28 4809.80 125.00 1.814 72 94.26 4687.13 214.70 4719.35 122.88 4821.36 137.24 1.816 73 95.84 4687.92 213.65 4719.35 124.82 4815.80 131.12 1.818 74 95.84 4687.92 212.07 4719.34 124.46 4812.74 128.06 1.818 75 94.26 4687.13 213.12 4719.34 122.51 4818.31 134.18 1.818 76 94.79 4687.39 213.65 4719.35 123.26 4818.52 134.18 1.819 77 97.95 4688.97 214.17 4719.35 128.34 4810.22 125.00 1.820 78 95.84 4687.92 210.49 4719.33 124.11 4809.68 125.00 1.820 79 97.42 4688.71 213.12 4719.34 127.18 4810.12 125.00 1.820 80 93.74 4687.00 214.17 4719.35 122.24 4821.25 137.24 1.821 81 94.79 4687.39 212.07 4719.34 122.89 4815.47 131.12 1.821 82 94.26 4687.13 209.96 4719.33 121.79 4812.20 128.06 1.821 83 97.42 4688.71 214.70 4719.35 127.54 4813.18 128.06 1.821 84 94.26 4687.13 211.54 4719.34 122.14 4815.26 131.12 1.821 85 94.26 4687.13 208.38 4719.32 121.45 4809.14 125.00 1.821 86 94.79 4687.39 210.49 4719.33 122.54 4812.41 128.06 1.822 87 94.79 4687.39 208.91 4719.32 122.20 4809.35 125.00 1.822 88 94.79 4687.39 211.02 4719.33 123.88 4808.96 125.00 1.822 89 95.32 4687.66 214.17 4719.35 124.02 4818.74 134.18 1.823 90 93.74 4687.00 212.59 4719.34 121.87 4818.20 134.18 1.823 91 95.32 4687.66 212.59 4719.34 123.65 4815.68 131.12 1.824 92 95.32 4687.66 209.44 4719.32 122.94 4809.57 125.00 1.824 93 93.74 4687.00 211.02 4719.33 121.50 4815.15 131.12 1.825 94 95.32 4687.66 211.02 4719.33 123.29 4812.63 128.06 1.825 95 93.74 4687.00 209.44 4719.32 121.15 4812.09 128.06 1.826 96 93.74 4687.00 207.86 4719.32 120.82 4809.03 125.00 1.826 97 95.84 4687.92 214.70 4719.35 124.78 4818.95 134.18 1.828 98 94.26 4687.13 214.17 4719.35 122.46 4821.45 137.24 1.828 99 96.89 4688.45 212.07 4719.34 126.02 4810.01 125.00 1.829 Critical Failure Surface (circle 1) Intersects: Centre: XL: XC: 96.37 127.77 YL: YC: Generated failure surface: (20 points) 96.37 4684.27 129.68 4687.48 162.85 4699.47 193.50 4719.35 4688.18 4684.19 4689.20 4702.85 102.92 136.40 169.26 199.12 4688.18 4809.18 4686.67 4684.47 4691.26 4706.54 XR: 214.70 YR: 4719.35 Radius: R: 125.00 109.55 143.10 175.54 204.54 4685.51 4685.12 4693.66 4710.53 Slice Geometry and Properties - Critical Failure Surface (circle 1, 43 slices) Slice Test Factor X -S Base 116.23 149.75 181.69 209.74 4684.71 4686.12 4696.40 4714.80 122.95 156.34 187.68 214.70 PoreWater Normal X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress 1 96.37 2.33 -13.0 2.52 2.59 1 10.00 35.0 267.51 0.00 118.45 1.13 2 98.89 6.97 -13.0 2.52 2.59 1 10.00 35.0 802.11 0.00 352.23 1.13 3 101.41 6.41 -13.0 1.51 1.55 2 1000.00 0.0 737.57 17.12 620.93 1.03 4 102.92 19.59 -9.9 3.31 3.36 2 1000.00 0.0 2253.19 135.94 780.69 1.02 5 106.24 27.01 -9.9 3.31 3.36 2 1000.00 0.0 3105.74 259.37 1038.01 1.02 6 109.55 34.42 -6.8 3.34 3.36 2 1000.00 0.0 3957.89 364.13 1253.88 1.01 7 112.89 41.34 -6.8 3.34 3.36 2 1000.00 0.0 4753.64 450.05 1492.17 1.01 8 116.23 48.21 -3.8 3.36 3.36 2 1000.00 0.0 5543.97 517.09 1689.10 1.00 9 119.59 54.58 -3.8 3.36 3.36 2 1000.00 0.0 6277.13 565.06 1907.48 1.00 10 122.95 60.79 -0.7 3.36 3.36 2 1000.00 0.0 6990.32 594.08 2084.44 1.00 11 126.31 66.58 -0.7 3.36 3.36 2 1000.00 0.0 7656.27 604.02 2282.38 1.00 12 129.68 72.00 2.4 3.36 3.36 2 1000.00 0.0 8280.30 595.10 2438.88 1.00 13 133.04 77.18 2.4 3.36 3.36 2 1000.00 0.0 8875.14 567.02 2615.74 1.00 14 136.40 81.73 5.5 3.35 3.36 2 1000.00 0.0 9398.87 520.16 2750.88 1.00 15 139.75 86.26 5.5 3.35 3.36 2 1000.00 0.0 9919.61 454.15 2906.29 1.00 16 143.10 89.87 8.6 3.33 3.36 2 1000.00 0.0 10334.66 369.36 3019.30 1.01 17 146.43 93.73 8.6 3.33 3.36 2 1000.00 0.0 10778.71 265.62 3152.78 1.01 18 149.75 61.71 11.7 2.12 2.17 2 1000.00 0.0 7096.17 108.46 3223.35 1.02 19 151.88 63.03 11.7 2.12 2.17 2 1000.00 0.0 7248.33 49.87 3295.00 1.02 20 154.00 22.43 11.7 0.74 0.76 2 1000.00 0.0 2576.91 3.62 3340.58 1.02 21 154.74 48.70 11.7 1.60 1.63 1 10.00 35.0 5581.71 0.00 3220.39 0.94 22 156.34 88.61 14.8 2.86 2.95 1 10.00 35.0 10109.83 0.00 3197.89 0.93 23 159.20 112.71 14.8 3.65 3.78 1 10.00 35.0 12819.45 0.00 3172.24 0.93 24 162.85 95.59 17.8 3.20 3.36 1 10.00 35.0 10870.17 0.00 3001.78 0.93 25 166.05 92.22 17.8 3.20 3.36 1 10.00 35.0 10482.96 0.00 2894.96 0.93 26 169.26 95.01 20.9 3.44 3.69 1 10.00 35.0 10796.73 0.00 2714.32 0.93 27 172.70 16.92 20.9 0.63 0.68 4 0.00 45.0 1692.00 0.00 2195.41 0.88 28 173.33 58.05 20.9 2.21 2.37 4 0.00 45.0 6013.41 1390.59 2334.77 0.88 29 175.54 77.27 24.0 3.07 3.36 1 10.00 35.0 9673.03 4104.87 2851.23 0.93 30 178.62 73.00 24.0 3.07 3.36 1 10.00 35.0 9119.38 3817.41 2685.53 0.93 31 181.69 66.74 27.1 3.00 3.36 1 10.00 35.0 8316.31 3512.66 2477.38 0.93 32 184.68 62.08 27.1 3.00 3.36 1 10.00 35.0 7713.33 3191.09 2294.09 0.93 33 187.68 55.54 30.2 2.91 3.36 1 10.00 35.0 6874.39 2852.57 2072.56 0.94 34 190.59 50.56 30.2 2.91 3.36 1 10.00 35.0 6229.03 2497.46 1872.80 0.94 35 193.50 43.87 33.3 2.81 3.36 1 10.00 35.0 5372.75 2126.05 1639.20 0.95 36 196.31 38.63 33.3 2.81 3.36 1 10.00 35.0 4692.41 1738.81 1423.84 0.95 37 199.12 31.95 36.3 2.71 3.36 1 10.00 35.0 3838.44 1335.64 1179.63 0.96 38 201.83 26.50 36.4 2.71 3.36 1 10.00 35.0 3130.60 916.96 949.71 0.96 39 204.54 16.25 39.4 2.05 2.65 1 10.00 35.0 1875.86 418.44 723.05 0.97 40 206.59 12.82 39.4 2.05 2.65 1 10.00 35.0 1429.25 139.51 533.20 0.97 41 208.64 5.47 39.4 1.10 1.42 1 10.00 35.0 590.28 0.00 399.43 0.97 42 209.74 8.21 42.5 2.39 3.25 1 10.00 35.0 860.94 0.00 258.52 0.99 43 212.14 3.00 42.5 2.56 3.48 5 50.00 25.0 299.96 0.00 72.60 1.09 X -S Area: 2195.84 Path Length: 127.86 X -S Weight: 255236.25 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5.gmf Processed: 24 Feb 2024 13:58:24 DATA: Analysis 1 - Case SS -5 - Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 120.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4730.00 375.00 4730.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4720.30 222.40 4720.30 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 222.40 4724.90 Profile: 4 (2 points) 225.40 4720.30 Profile: 5 (3 points) 0.00 4688.40 Profile: 6 (2 points) 225.40 4688.80 Profile: 7 (4 points) 0.00 4685.40 Slope Surface (12 points) 0.00 4688.40 4724.80 253.80 4724.90 4723.70 347.70 4723.00 225.40 4724.90 Material beneath: 1 - Sand and Gravel 375.00 4720.30 Material beneath: 2 - Weathered Claystone Bedrock 136.50 4688.60 222.40 4688.80 Material beneath: 2 - Weathered Claystone Bedrock 375.00 4688.90 Material beneath: 3 - Stable Claystone Bedrock 136.50 4685.60 222.40 4685.60 Phreatic Surface (7 points) 0.00 4716.30 325.00 Failure Surface 4688.40 4727.00 136.50 4688.60 289.30 4725.00 375.00 4724.40 136.50 4688.60 375.00 4727.00 208.80 4724.80 303.70 4729.70 222.40 4688.80 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 136.00 YL: 4688.60 XR: 258.80 YR: Centre: XC: 143.67 YC: 4888.45 Radius: R: Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 150.00 20 20 50 RESULTS: Analysis 1 - Case SS -5 - Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques 375.00 4685.90 222.40 4724.80 314.90 4729.70 225.40 4716.30 4724.91 200.00 225.40 338.30 289.30 Initial failure surface approximation - Factor of Safety: 2.581 Analysis Summary There were: 16505 successful analyses from a total of 20001 trial failure surfaces 3496 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 2.14 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 139.42 4690.06 263.27 4724.93 172.31 4810.66 125.00 2.141 <-- Critical Surface 2 138.89 4689.80 263.80 4724.93 171.45 4813.65 128.06 2.148 3 138.37 4689.54 260.64 4724.92 169.60 4810.57 125.00 2.150 4 138.89 4689.80 261.69 4724.92 170.75 4810.67 125.00 2.151 5 139.42 4690.06 262.75 4724.93 171.89 4810.77 125.00 2.154 6 139.95 4690.33 263.80 4724.93 173.03 4810.87 125.00 2.159 7 138.37 4689.54 262.22 4724.92 169.89 4813.66 128.06 2.160 8 138.89 4689.80 263.27 4724.93 171.03 4813.76 128.06 2.161 9 138.37 4689.54 260.12 4724.92 169.18 4810.68 125.00 2.162 10 137.84 4689.27 259.06 4724.91 168.03 4810.57 125.00 2.162 11 138.89 4689.80 261.17 4724.92 170.32 4810.78 125.00 2.164 12 138.37 4689.54 263.80 4724.93 170.18 4816.74 131.12 2.168 13 139.42 4690.06 262.22 4724.92 171.47 4810.88 125.00 2.170 14 137.84 4689.27 260.64 4724.92 168.31 4813.66 128.06 2.172 15 138.37 4689.54 261.69 4724.92 169.46 4813.76 128.06 2.172 16 137.84 4689.27 258.54 4724.91 167.60 4810.68 125.00 2.173 17 138.37 4689.54 259.59 4724.92 168.75 4810.79 125.00 2.174 18 139.95 4690.33 263.27 4724.93 172.61 4810.98 125.00 2.174 19 138.89 4689.80 260.64 4724.92 169.90 4810.89 125.00 2.176 20 138.89 4689.80 262.75 4724.93 170.61 4813.87 128.06 2.176 21 138.89 4689.80 262.22 4724.92 171.17 4810.56 125.00 2.177 22 139.42 4690.06 263.80 4724.93 171.76 4813.97 128.06 2.178 23 139.42 4690.06 261.69 4724.92 171.05 4810.99 125.00 2.180 24 137.84 4689.27 262.22 4724.92 168.61 4816.73 131.12 2.181 25 137.84 4689.27 258.01 4724.91 167.17 4810.78 125.00 2.181 26 138.37 4689.54 263.27 4724.93 169.76 4816.84 131.12 2.182 27 137.84 4689.27 260.12 4724.92 167.88 4813.76 128.06 2.183 28 138.37 4689.54 261.17 4724.92 169.04 4813.87 128.06 2.183 29 138.37 4689.54 259.06 4724.91 168.33 4810.89 125.00 2.185 30 137.32 4689.01 259.06 4724.91 166.73 4813.65 128.06 2.185 31 138.89 4689.80 262.22 4724.92 170.19 4813.98 128.06 2.186 32 137.32 4689.01 256.96 4724.91 166.02 4810.67 125.00 2.187 33 138.89 4689.80 260.12 4724.92 169.48 4811.00 125.00 2.187 34 139.95 4690.33 262.75 4724.93 172.19 4811.10 125.00 2.188 35 140.47 4690.59 263.80 4724.93 173.34 4811.19 125.00 2.189 36 137.84 4689.27 263.80 4724.93 168.92 4819.81 134.18 2.189 37 139.42 4690.06 263.27 4724.93 171.34 4814.08 128.06 2.190 38 139.42 4690.06 261.17 4724.92 170.63 4811.10 125.00 2.191 39 137.84 4689.27 261.69 4724.92 168.18 4816.84 131.12 2.192 40 137.84 4689.27 259.59 4724.92 167.46 4813.86 128.06 2.194 41 137.32 4689.01 260.64 4724.92 167.02 4816.72 131.12 2.194 42 137.32 4689.01 258.54 4724.91 166.30 4813.75 128.06 2.194 43 137.84 4689.27 257.48 4724.91 166.75 4810.88 125.00 2.194 44 138.37 4689.54 260.64 4724.92 168.61 4813.97 128.06 2.195 45 138.37 4689.54 258.54 4724.91 167.90 4811.00 125.00 2.195 46 138.89 4689.80 263.80 4724.93 170.50 4817.06 131.12 2.195 47 137.32 4689.01 256.43 4724.91 165.59 4810.77 125.00 2.197 48 138.89 4689.80 261.69 4724.92 169.77 4814.08 128.06 2.197 49 139.95 4690.33 262.22 4724.92 171.78 4811.21 125.00 2.197 50 138.89 4689.80 259.59 4724.92 169.06 4811.11 125.00 2.198 51 138.37 4689.54 262.75 4724.93 169.34 4816.95 131.12 2.198 52 140.47 4690.59 263.27 4724.93 172.92 4811.31 125.00 2.202 53 136.79 4688.75 255.38 4724.90 164.43 4810.65 125.00 2.202 54 139.42 4690.06 262.75 4724.93 170.92 4814.19 128.06 2.202 55 139.42 4690.06 260.64 4724.92 170.21 4811.21 125.00 2.202 56 137.32 4689.01 262.22 4724.92 167.33 4819.79 134.18 2.203 57 137.84 4689.27 261.17 4724.92 167.75 4816.94 131.12 2.203 58 138.37 4689.54 258.01 4724.91 167.48 4811.10 125.00 2.204 59 138.37 4689.54 262.22 4724.92 168.92 4817.05 131.12 2.204 60 137.84 4689.27 259.06 4724.91 167.03 4813.96 128.06 2.204 61 137.32 4689.01 260.12 4724.92 166.59 4816.82 131.12 2.205 62 138.37 4689.54 260.12 4724.92 168.19 4814.08 128.06 2.205 63 137.84 4689.27 263.27 4724.93 168.49 4819.91 134.18 2.205 64 137.32 4689.01 258.01 4724.91 165.87 4813.85 128.06 2.206 65 139.95 4690.33 263.80 4724.93 172.07 4814.29 128.06 2.207 66 137.84 4689.27 256.96 4724.91 166.32 4810.99 125.00 2.207 67 138.89 4689.80 263.27 4724.93 170.07 4817.16 131.12 2.207 68 138.89 4689.80 259.06 4724.91 168.63 4811.21 125.00 2.208 69 138.89 4689.80 261.17 4724.92 169.35 4814.19 128.06 2.208 70 136.79 4688.75 256.96 4724.91 164.70 4813.73 128.06 2.211 71 137.32 4689.01 255.91 4724.91 165.16 4810.87 125.00 2.211 72 137.84 4689.27 262.75 4724.93 168.07 4820.01 134.18 2.212 73 138.37 4689.54 263.80 4724.93 169.23 4820.12 134.18 2.213 74 137.32 4689.01 261.69 4724.92 166.90 4819.89 134.18 2.213 75 139.42 4690.06 260.12 4724.92 169.78 4811.32 125.00 2.213 76 137.84 4689.27 260.64 4724.92 167.33 4817.04 131.12 2.214 77 137.32 4689.01 263.80 4724.93 167.65 4822.86 137.24 2.214 78 138.37 4689.54 261.69 4724.92 168.49 4817.15 131.12 2.215 79 138.37 4689.54 259.59 4724.92 167.76 4814.18 128.06 2.215 80 137.84 4689.27 258.54 4724.91 166.60 4814.06 128.06 2.215 81 137.32 4689.01 259.59 4724.92 166.16 4816.92 131.12 2.215 82 136.79 4688.75 258.54 4724.91 164.99 4816.80 131.12 2.215 83 137.84 4689.27 256.43 4724.91 165.89 4811.09 125.00 2.216 84 136.26 4688.60 254.33 4724.90 163.35 4810.63 125.00 2.217 85 138.37 4689.54 257.48 4724.91 167.05 4811.20 125.00 2.217 86 136.79 4688.75 254.85 4724.90 163.99 4810.75 125.00 2.217 87 137.32 4689.01 255.38 4724.90 164.72 4810.97 125.00 2.218 88 135.74 4688.60 253.80 4724.90 162.83 4810.63 125.00 2.219 89 138.89 4689.80 260.64 4724.92 168.92 4814.29 128.06 2.219 90 139.95 4690.33 261.17 4724.92 170.93 4811.42 125.00 2.219 91 137.32 4689.01 257.48 4724.91 165.44 4813.94 128.06 2.219 92 138.89 4689.80 258.54 4724.91 168.21 4811.31 125.00 2.221 93 140.47 4690.59 262.75 4724.93 172.50 4811.42 125.00 2.221 94 137.84 4689.27 258.01 4724.91 166.17 4814.16 128.06 2.221 95 137.32 4689.01 263.27 4724.93 167.22 4822.96 137.24 2.222 96 139.95 4690.33 261.69 4724.92 171.36 4811.32 125.00 2.222 97 136.26 4688.60 255.91 4724.91 163.63 4813.70 128.06 2.222 98 137.84 4689.27 262.22 4724.92 167.64 4820.11 134.18 2.223 99 137.32 4689.01 261.17 4724.92 166.47 4819.99 134.18 2.224 Critical Failure Surface (circle 1) Intersects: XL: 139.42 YL: 4690.06 Centre: XC: 172.31 YC: 4810.66 Generated failure surface: (20 points) 139.42 4690.06 146.33 4688.39 4685.75 174.60 4685.68 181.70 4686.01 4689.42 209.59 4691.35 216.31 4693.66 4702.84 241.58 4706.61 247.39 4710.72 4724.93 XR: 263.27 YR: 4724.93 Radius: R: 125.00 153.33 188.78 222.90 252.95 4687.11 4686.75 4696.35 4715.15 Slice Geometry and Properties - Critical Failure Surface (circle 1, 42 slices) Slice Test Factor X -S Base 160.39 195.80 229.32 258.25 4686.23 4687.89 4699.42 4719.89 167.48 202.74 235.55 263.27 PoreWater Normal X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress 1 139.42 3.29 -13.6 2.97 3.06 1 10.00 35.0 377.97 0.00 139.24 1.12 2 142.40 9.86 -13.6 2.97 3.06 1 10.00 35.0 1134.09 0.00 415.34 1.12 3 145.37 4.60 -13.6 0.96 0.99 2 1000.00 0.0 530.02 7.31 663.23 1.03 4 146.33 22.15 -10.4 3.50 3.56 2 1000.00 0.0 2557.11 124.17 816.38 1.02 5 149.83 30.52 -10.4 3.50 3.56 2 1000.00 0.0 3530.38 267.96 1094.60 1.02 6 153.33 38.90 -7.1 3.53 3.56 2 1000.00 0.0 4504.00 389.53 1334.53 1.01 7 156.86 46.68 -7.1 3.53 3.56 2 1000.00 0.0 5407.37 488.89 1590.46 1.01 8 160.39 54.43 -3.8 3.55 3.56 2 1000.00 0.0 6304.37 565.93 1808.14 1.00 9 163.94 61.57 -3.8 3.55 3.56 2 1000.00 0.0 7130.60 620.53 2040.94 1.00 10 167.48 68.52 -0.6 3.56 3.56 2 1000.00 0.0 7932.46 652.83 2235.45 1.00 11 171.04 74.98 -0.6 3.56 3.56 2 1000.00 0.0 8676.10 662.69 2444.56 1.00 12 174.60 80.99 2.7 3.55 3.56 2 1000.00 0.0 9366.26 650.11 2614.85 1.00 13 178.15 86.72 2.7 3.55 3.56 2 1000.00 0.0 10022.15 615.01 2799.41 1.00 14 181.70 91.68 5.9 3.54 3.56 2 1000.00 0.0 10588.08 557.59 2944.80 1.01 15 185.24 96.65 5.9 3.54 3.56 2 1000.00 0.0 11152.54 477.73 3104.45 1.01 16 188.78 100.47 9.2 3.51 3.56 2 1000.00 0.0 11583.57 375.67 3224.04 1.01 17 192.29 104.64 9.2 3.51 3.56 2 1000.00 0.0 12053.66 251.27 3358.03 1.01 18 195.80 120.58 12.5 3.90 3.99 2 1000.00 0.0 13875.06 106.14 3457.88 1.02 19 199.69 97.31 12.5 3.05 3.12 1 10.00 35.0 11158.16 0.00 3412.44 0.96 20 202.74 99.00 15.7 3.03 3.15 1 10.00 35.0 11283.79 0.00 3409.27 0.95 21 205.77 101.01 15.7 3.03 3.15 1 10.00 35.0 11446.21 0.00 3458.53 0.95 22 208.80 26.42 15.7 0.79 0.82 1 10.00 35.0 2985.04 0.00 3471.18 0.95 23 209.59 110.55 19.0 3.36 3.56 1 10.00 35.0 12485.71 0.00 3336.02 0.95 24 212.95 106.66 19.0 3.36 3.56 1 10.00 35.0 12038.57 0.00 3216.50 0.95 25 216.31 92.88 22.2 3.04 3.29 1 10.00 35.0 10475.71 0.00 3034.18 0.95 26 219.36 89.09 22.2 3.04 3.29 1 10.00 35.0 10040.07 0.00 2907.93 0.95 27 222.40 14.16 22.2 0.50 0.54 4 0.00 45.0 1415.81 0.00 2397.31 0.91 28 222.90 69.74 25.5 2.50 2.77 4 0.00 45.0 7170.71 1362.89 2431.28 0.91 29 225.40 103.07 25.5 3.92 4.34 1 10.00 35.0 12634.65 4823.07 2939.64 0.96 30 229.32 76.53 28.8 3.12 3.56 1 10.00 35.0 9338.64 3556.66 2689.81 0.97 31 232.43 71.22 28.8 3.12 3.56 1 10.00 35.0 8648.41 3177.11 2485.77 0.97 32 235.55 63.50 32.0 3.02 3.56 1 10.00 35.0 7662.78 2778.15 2240.10 0.98 33 238.57 57.84 32.0 3.02 3.56 1 10.00 35.0 6926.70 2359.38 2017.50 0.98 34 241.58 50.00 35.3 2.90 3.56 1 10.00 35.0 5928.63 1922.27 1757.42 0.99 35 244.48 44.07 35.3 2.90 3.56 1 10.00 35.0 5156.25 1466.33 1517.25 0.99 36 247.39 36.31 38.5 2.78 3.56 1 10.00 35.0 4171.37 992.59 1244.52 1.01 37 250.17 30.18 38.5 2.78 3.56 1 10.00 35.0 3372.92 500.90 988.20 1.01 38 252.95 7.97 41.8 0.85 1.14 1 10.00 35.0 868.17 54.77 796.66 1.04 39 253.80 17.79 41.8 2.23 2.99 1 10.00 35.0 1892.50 0.00 654.80 1.04 40 256.03 13.38 41.8 2.23 2.99 1 10.00 35.0 1384.76 0.00 478.28 1.04 41 258.25 9.46 45.1 2.51 3.56 5 50.00 25.0 945.81 0.00 289.88 1.16 42 260.76 3.15 45.1 2.51 3.56 5 50.00 25.0 315.19 0.00 83.79 1.16 X -S Area: 2488.51 Path Length: 135.14 X -S Weight: 286472.31 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5-EQ.gmf Processed: 24 Feb 2024 14:03:34 DATA: Analysis 1 - Case SS -5 - Pseudo -Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 120.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (7 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4730.00 375.00 4730.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4720.30 222.40 4720.30 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 222.40 4724.90 Profile: 4 (2 points) 225.40 4720.30 Profile: 5 (3 points) 0.00 4688.40 Profile: 6 (2 points) 225.40 4688.80 Profile: 7 (4 points) 0.00 4685.40 Slope Surface (12 points) 0.00 4688.40 4724.80 253.80 4724.90 4723.70 347.70 4723.00 225.40 4724.90 Material beneath: 1 - Sand and Gravel 375.00 4720.30 Material beneath: 2 - Weathered Claystone Bedrock 136.50 4688.60 222.40 4688.80 Material beneath: 2 - Weathered Claystone Bedrock 375.00 4688.90 Material beneath: 3 - Stable Claystone Bedrock 136.50 4685.60 222.40 4685.60 Phreatic Surface (7 points) 0.00 4716.30 325.00 Failure Surface 4688.40 4727.00 136.50 289.30 375.00 4688.60 4725.00 4724.40 136.50 4688.60 375.00 4727.00 208.80 4724.80 303.70 4729.70 222.40 4688.80 Initial circular surface for critical search defined by: XL,XR,R Intersects: XL: 136.00 YL: 4688.60 XR: 258.80 YR: Centre: XC: 143.67 YC: 4888.45 Radius: R: Earthquake Force Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XL XR R 10.00 10.00 150.00 20 20 50 RESULTS: Analysis 1 - Case SS -5 - Pseudo -Static 375.00 4685.90 222.40 4724.80 314.90 4729.70 225.40 4716.30 4724.91 200.00 225.40 338.30 289.30 Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.071 Analysis Summary There were: 16505 successful analyses from a total of 20001 trial failure surfaces 3496 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 1.70 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 139.42 4690.06 263.27 4724.93 172.31 4810.66 125.00 1.696 <-- Critical Surface 2 138.89 4689.80 263.80 4724.93 171.45 4813.65 128.06 1.701 3 139.95 4690.33 263.80 4724.93 173.03 4810.87 125.00 1.707 4 139.42 4690.06 262.75 4724.93 171.89 4810.77 125.00 1.708 5 138.89 4689.80 261.69 4724.92 170.75 4810.67 125.00 1.710 6 138.89 4689.80 263.27 4724.93 171.03 4813.76 128.06 1.713 7 138.37 4689.54 260.64 4724.92 169.60 4810.57 125.00 1.714 8 138.37 4689.54 262.22 4724.92 169.89 4813.66 128.06 1.717 9 138.37 4689.54 263.80 4724.93 170.18 4816.74 131.12 1.719 10 139.95 4690.33 263.27 4724.93 172.61 4810.98 125.00 1.721 11 138.89 4689.80 261.17 4724.92 170.32 4810.78 125.00 1.722 12 139.42 4690.06 262.22 4724.92 171.47 4810.88 125.00 1.722 13 139.42 4690.06 263.80 4724.93 171.76 4813.97 128.06 1.723 14 138.37 4689.54 260.12 4724.92 169.18 4810.68 125.00 1.725 15 138.89 4689.80 262.75 4724.93 170.61 4813.87 128.06 1.727 16 138.37 4689.54 261.69 4724.92 169.46 4813.76 128.06 1.728 17 138.89 4689.80 262.22 4724.92 171.17 4810.56 125.00 1.730 18 140.47 4690.59 263.80 4724.93 173.34 4811.19 125.00 1.730 19 137.84 4689.27 259.06 4724.91 168.03 4810.57 125.00 1.730 20 138.37 4689.54 263.27 4724.93 169.76 4816.84 131.12 1.731 21 139.42 4690.06 261.69 4724.92 171.05 4810.99 125.00 1.732 22 137.84 4689.27 260.64 4724.92 168.31 4813.66 128.06 1.733 23 138.89 4689.80 260.64 4724.92 169.90 4810.89 125.00 1.733 24 139.95 4690.33 262.75 4724.93 172.19 4811.10 125.00 1.734 25 139.42 4690.06 263.27 4724.93 171.34 4814.08 128.06 1.735 26 137.84 4689.27 262.22 4724.92 168.61 4816.73 131.12 1.735 27 138.37 4689.54 259.59 4724.92 168.75 4810.79 125.00 1.736 28 138.89 4689.80 262.22 4724.92 170.19 4813.98 128.06 1.736 29 137.84 4689.27 263.80 4724.93 168.92 4819.81 134.18 1.737 30 138.89 4689.80 263.80 4724.93 170.50 4817.06 131.12 1.739 31 138.37 4689.54 261.17 4724.92 169.04 4813.87 128.06 1.739 32 137.84 4689.27 258.54 4724.91 167.60 4810.68 125.00 1.741 33 140.47 4690.59 263.27 4724.93 172.92 4811.31 125.00 1.742 34 139.95 4690.33 262.22 4724.92 171.78 4811.21 125.00 1.743 35 139.42 4690.06 261.17 4724.92 170.63 4811.10 125.00 1.743 36 137.84 4689.27 260.12 4724.92 167.88 4813.76 128.06 1.744 37 138.89 4689.80 260.12 4724.92 169.48 4811.00 125.00 1.744 38 139.95 4690.33 263.80 4724.93 172.07 4814.29 128.06 1.745 39 138.37 4689.54 262.75 4724.93 169.34 4816.95 131.12 1.746 40 137.84 4689.27 261.69 4724.92 168.18 4816.84 131.12 1.746 41 139.42 4690.06 262.75 4724.93 170.92 4814.19 128.06 1.746 42 138.37 4689.54 259.06 4724.91 168.33 4810.89 125.00 1.747 43 138.89 4689.80 261.69 4724.92 169.77 4814.08 128.06 1.747 44 137.84 4689.27 258.01 4724.91 167.17 4810.78 125.00 1.749 45 138.37 4689.54 260.64 4724.92 168.61 4813.97 128.06 1.750 46 138.89 4689.80 263.27 4724.93 170.07 4817.16 131.12 1.750 47 137.32 4689.01 259.06 4724.91 166.73 4813.65 128.06 1.750 48 137.84 4689.27 263.27 4724.93 168.49 4819.91 134.18 1.751 49 137.32 4689.01 260.64 4724.92 167.02 4816.72 131.12 1.752 50 138.37 4689.54 262.22 4724.92 168.92 4817.05 131.12 1.752 51 139.42 4690.06 260.64 4724.92 170.21 4811.21 125.00 1.753 52 137.84 4689.27 259.59 4724.92 167.46 4813.86 128.06 1.754 53 138.89 4689.80 259.59 4724.92 169.06 4811.11 125.00 1.754 54 137.32 4689.01 262.22 4724.92 167.33 4819.79 134.18 1.754 55 138.37 4689.54 263.80 4724.93 169.23 4820.12 134.18 1.755 56 138.37 4689.54 258.54 4724.91 167.90 4811.00 125.00 1.757 57 137.84 4689.27 261.17 4724.92 167.75 4816.94 131.12 1.757 58 138.89 4689.80 261.17 4724.92 169.35 4814.19 128.06 1.758 59 137.32 4689.01 256.96 4724.91 166.02 4810.67 125.00 1.758 60 137.32 4689.01 263.80 4724.93 167.65 4822.86 137.24 1.758 61 140.47 4690.59 262.75 4724.93 172.50 4811.42 125.00 1.759 62 137.84 4689.27 262.75 4724.93 168.07 4820.01 134.18 1.759 63 137.32 4689.01 258.54 4724.91 166.30 4813.75 128.06 1.759 64 141.00 4690.85 263.80 4724.93 173.65 4811.51 125.00 1.759 65 138.37 4689.54 260.12 4724.92 168.19 4814.08 128.06 1.760 66 137.84 4689.27 257.48 4724.91 166.75 4810.88 125.00 1.761 67 139.95 4690.33 263.27 4724.93 171.65 4814.40 128.06 1.761 68 138.37 4689.54 261.69 4724.92 168.49 4817.15 131.12 1.763 69 137.32 4689.01 260.12 4724.92 166.59 4816.82 131.12 1.763 70 139.95 4690.33 261.69 4724.92 171.36 4811.32 125.00 1.764 71 139.95 4690.33 261.17 4724.92 170.93 4811.42 125.00 1.764 72 139.42 4690.06 260.12 4724.92 169.78 4811.32 125.00 1.764 73 137.84 4689.27 259.06 4724.91 167.03 4813.96 128.06 1.764 74 138.89 4689.80 259.06 4724.91 168.63 4811.21 125.00 1.764 75 137.32 4689.01 261.69 4724.92 166.90 4819.89 134.18 1.765 76 140.47 4690.59 262.22 4724.92 172.08 4811.53 125.00 1.765 77 138.37 4689.54 258.01 4724.91 167.48 4811.10 125.00 1.766 78 139.42 4690.06 263.80 4724.93 170.81 4817.37 131.12 1.766 79 137.32 4689.01 263.27 4724.93 167.22 4822.96 137.24 1.766 80 137.84 4689.27 260.64 4724.92 167.33 4817.04 131.12 1.767 81 138.37 4689.54 263.27 4724.93 168.81 4820.22 134.18 1.767 82 139.42 4690.06 262.22 4724.92 170.50 4814.29 128.06 1.767 83 137.32 4689.01 256.43 4724.91 165.59 4810.77 125.00 1.768 84 141.00 4690.85 263.27 4724.93 173.23 4811.63 125.00 1.768 85 139.95 4690.33 262.75 4724.93 171.23 4814.51 128.06 1.768 86 138.89 4689.80 260.64 4724.92 168.92 4814.29 128.06 1.768 87 139.42 4690.06 261.69 4724.92 170.08 4814.40 128.06 1.768 88 137.84 4689.27 262.22 4724.92 167.64 4820.11 134.18 1.769 89 140.47 4690.59 263.80 4724.93 172.39 4814.61 128.06 1.769 90 138.37 4689.54 259.59 4724.92 167.76 4814.18 128.06 1.769 91 138.89 4689.80 262.75 4724.93 169.65 4817.26 131.12 1.770 92 137.32 4689.01 258.01 4724.91 165.87 4813.85 128.06 1.770 93 138.89 4689.80 262.22 4724.92 169.23 4817.36 131.12 1.771 94 139.42 4690.06 263.27 4724.93 170.39 4817.48 131.12 1.771 95 137.84 4689.27 263.80 4724.93 167.96 4823.17 137.24 1.772 96 137.32 4689.01 259.59 4724.92 166.16 4816.92 131.12 1.772 97 138.37 4689.54 261.17 4724.92 168.06 4817.25 131.12 1.773 98 137.84 4689.27 256.96 4724.91 166.32 4810.99 125.00 1.773 99 138.89 4689.80 263.80 4724.93 169.55 4820.44 134.18 1.774 Critical Failure Surface (circle 1) Intersects: XL: 139.42 YL: 4690.06 Centre: XC: 172.31 YC: 4810.66 Generated failure surface: (20 points) 139.42 4690.06 146.33 4688.39 4685.75 174.60 4685.68 181.70 4686.01 4689.42 209.59 4691.35 216.31 4693.66 4702.84 241.58 4706.61 247.39 4710.72 4724.93 XR: 263.27 YR: 4724.93 Radius: R: 125.00 153.33 4687.11 188.78 4686.75 222.90 4696.35 252.95 4715.15 Slice Geometry and Properties - Critical Failure Surface (circle 1, 42 slices) 160.39 195.80 229.32 258.25 4686.23 4687.89 4699.42 4719.89 167.48 202.74 235.55 263.27 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 139.42 3.29 -13.6 2.97 3.06 1 10.00 35.0 377.97 0.00 142.79 1.14 2 142.40 9.86 -13.6 2.97 3.06 1 10.00 35.0 1134.09 0.00 425.28 1.14 3 145.37 4.60 -13.6 0.96 0.99 2 1000.00 0.0 530.02 7.31 692.94 1.03 4 146.33 22.15 -10.4 3.50 3.56 2 1000.00 0.0 2557.11 124.17 838.80 1.02 5 149.83 30.52 -10.4 3.50 3.56 2 1000.00 0.0 3530.38 267.96 1117.03 1.02 6 153.33 38.90 -7.1 3.53 3.56 2 1000.00 0.0 4504.00 389.53 1349.82 1.01 7 156.86 46.68 -7.1 3.53 3.56 2 1000.00 0.0 5407.37 488.89 1605.73 1.01 8 160.39 54.43 -3.8 3.55 3.56 2 1000.00 0.0 6304.37 565.93 1816.38 1.00 9 163.94 61.57 -3.8 3.55 3.56 2 1000.00 0.0 7130.60 620.53 2049.15 1.00 10 167.48 68.52 -0.6 3.56 3.56 2 1000.00 0.0 7932.46 652.83 2236.70 1.00 11 171.04 74.98 -0.6 3.56 3.56 2 1000.00 0.0 8676.10 662.69 2445.81 1.00 12 174.60 80.99 2.7 3.55 3.56 2 1000.00 0.0 9366.26 650.11 2609.12 1.00 13 178.15 86.72 2.7 3.55 3.56 2 1000.00 0.0 10022.15 615.01 2793.67 1.00 14 181.70 91.68 5.9 3.54 3.56 2 1000.00 0.0 10588.08 557.59 2932.04 1.01 15 185.24 96.65 5.9 3.54 3.56 2 1000.00 0.0 11152.54 477.73 3091.70 1.01 16 188.78 100.47 9.2 3.51 3.56 2 1000.00 0.0 11583.57 375.67 3204.17 1.01 17 192.29 104.64 9.2 3.51 3.56 2 1000.00 0.0 12053.66 251.27 3338.18 1.01 18 195.80 120.58 12.5 3.90 3.99 2 1000.00 0.0 13875.06 106.14 3430.77 1.02 19 199.69 97.31 12.5 3.05 3.12 1 10.00 35.0 11158.16 0.00 3352.84 0.94 20 202.74 99.00 15.7 3.03 3.15 1 10.00 35.0 11283.79 0.00 3335.12 0.93 21 205.77 101.01 15.7 3.03 3.15 1 10.00 35.0 11446.21 0.00 3383.35 0.93 22 208.80 26.42 15.7 0.79 0.82 1 10.00 35.0 2985.04 0.00 3395.68 0.93 23 209.59 110.55 19.0 3.36 3.56 1 10.00 35.0 12485.71 0.00 3249.37 0.93 24 212.95 106.66 19.0 3.36 3.56 1 10.00 35.0 12038.57 0.00 3132.94 0.93 25 216.31 92.88 22.2 3.04 3.29 1 10.00 35.0 10475.71 0.00 2942.60 0.92 26 219.36 89.09 22.2 3.04 3.29 1 10.00 35.0 10040.07 0.00 2820.14 0.92 27 222.40 14.16 22.2 0.50 0.54 4 0.00 45.0 1415.81 0.00 2300.51 0.87 28 222.90 69.74 25.5 2.50 2.77 4 0.00 45.0 7170.71 1362.89 2342.69 0.86 29 225.40 103.07 25.5 3.92 4.34 1 10.00 35.0 12634.65 4823.07 2876.60 0.93 30 229.32 76.53 28.8 3.12 3.56 1 10.00 35.0 9338.64 3556.66 2624.34 0.93 31 232.43 71.22 28.8 3.12 3.56 1 10.00 35.0 8648.41 3177.11 2424.03 0.93 32 235.55 63.50 32.0 3.02 3.56 1 10.00 35.0 7662.78 2778.15 2177.21 0.94 33 238.57 57.84 32.0 3.02 3.56 1 10.00 35.0 6926.70 2359.38 1959.10 0.94 34 241.58 50.00 35.3 2.90 3.56 1 10.00 35.0 5928.63 1922.27 1699.53 0.95 35 244.48 44.07 35.3 2.90 3.56 1 10.00 35.0 5156.25 1466.33 1464.62 0.95 36 247.39 36.31 38.5 2.78 3.56 1 10.00 35.0 4171.37 992.59 1194.09 0.96 37 250.17 30.18 38.5 2.78 3.56 1 10.00 35.0 3372.92 500.90 943.85 0.96 38 252.95 7.97 41.8 0.85 1.14 1 10.00 35.0 868.17 54.77 753.88 0.98 39 253.80 17.79 41.8 2.23 2.99 1 10.00 35.0 1892.50 0.00 617.27 0.98 40 256.03 13.38 41.8 2.23 2.99 1 10.00 35.0 1384.76 0.00 450.66 0.98 41 258.25 9.46 45.1 2.51 3.56 5 50.00 25.0 945.81 0.00 272.03 1.11 42 260.76 3.15 45.1 2.51 3.56 5 50.00 25.0 315.19 0.00 75.21 1.11 X -S Area: 2488.51 Path Length: 135.14 X -S Weight: 286472.31 Reclamation Conditions J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5-REC.gmf Processed: 24 Feb 2024 14:08:05 DATA: Analysis 1 - Case SS -5 - Reclamation - Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 120.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (9 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4730.00 375.00 4730.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4720.30 222.40 4720.30 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 222.40 4724.90 Profile: 4 (2 points) 225.40 4720.30 Profile: 5 (3 points) 45.00 4688.30 Profile: 6 (2 points) 136.50 4688.60 Profile: 7 (4 points) 0.00 4688.40 Profile: 8 (2 points) 225.40 4688.80 Profile: 9 (5 points) 0.00 4685.40 4685.90 Slope Surface (12 points) 0.00 4688.40 4724.80 253.80 4724.90 4723.70 347.70 4723.00 225.40 4724.90 Material beneath: 1 - Sand and Gravel 375.00 4720.30 Material beneath: 5 - Clay 188.60 4720.30 200.00 4720.30 Material beneath: 1 - Sand and Gravel 200.00 4720.30 Material beneath: 2 - Weathered Claystone Bedrock 45.00 4688.30 136.50 4688.60 Material beneath: 2 - Weathered Claystone Bedrock 375.00 4688.90 Material beneath: 3 - Stable Claystone Bedrock 45.00 4685.30 136.50 4685.60 Phreatic Surface (8 points) 0.00 4716.30 289.30 Failure Surface 4688.40 4716.30 45.00 289.30 375.00 45.00 325.00 4688.30 4725.00 4724.40 208.80 303.70 4688.30 182.90 4727.00 375.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: Centre: XL: XC: Variable Restraints 45.00 69.51 Parameter descriptor: Range of variation: Trial positions within range: YL: YC: 4688.30 5187.70 XR: XL XR R 10.00 10.00 300.00 20 20 50 RESULTS: Analysis 1 - Case SS -5 - Reclamation - Static 4724.80 4729.70 4711.80 4727.00 258.80 YR: Radius: R: 222.40 4688.80 222.40 4685.60 222.40 4724.80 314.90 4729.70 222.40 4712.80 4724.91 500.00 375.00 225.40 338.30 225.40 Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 3.223 Analysis Summary There were: 18956 successful analyses from a total of 20001 trial failure surfaces 1045 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 2.41 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 50.00 4689.41 253.80 4724.90 79.29 5124.14 435.71 2.408 <-- Critical Surface 2 48.95 4689.18 253.80 4724.90 75.44 5142.49 454.08 2.412 3 49.47 4689.30 253.80 4724.90 76.83 5136.42 447.96 2.413 4 50.00 4689.41 253.80 4724.90 78.21 5130.35 441.84 2.414 5 48.95 4689.18 253.80 4724.90 74.36 5148.68 460.20 2.415 6 48.95 4689.18 254.33 4724.90 75.90 5142.46 454.08 2.416 7 49.47 4689.30 254.33 4724.90 77.29 5136.39 447.96 2.417 8 48.42 4689.06 253.80 4724.90 72.98 5154.74 466.33 2.418 9 50.00 4689.41 254.33 4724.90 78.67 5130.32 441.84 2.418 10 50.00 4689.41 253.80 4724.90 77.13 5136.55 447.96 2.420 11 47.89 4688.94 253.80 4724.90 70.51 5166.98 478.57 2.420 12 49.47 4689.30 253.80 4724.90 75.75 5142.62 454.08 2.420 13 49.47 4689.30 254.85 4724.90 77.74 5136.36 447.96 2.421 14 48.42 4689.06 253.80 4724.90 71.90 5160.93 472.45 2.421 15 48.95 4689.18 254.33 4724.90 74.83 5148.66 460.20 2.421 16 48.42 4689.06 254.33 4724.90 73.44 5154.72 466.33 2.422 17 49.47 4689.30 253.80 4724.90 74.67 5148.81 460.20 2.422 18 50.00 4689.41 254.85 4724.90 79.12 5130.29 441.84 2.422 19 49.47 4689.30 254.33 4724.90 76.21 5142.59 454.08 2.423 20 47.89 4688.94 254.33 4724.90 70.98 5166.96 478.57 2.423 21 47.37 4688.83 253.80 4724.90 68.05 5179.21 490.82 2.424 22 50.00 4689.41 254.33 4724.90 77.59 5136.52 447.96 2.424 23 48.95 4689.18 253.80 4724.90 73.28 5154.87 466.33 2.425 24 47.89 4688.94 253.80 4724.90 69.43 5173.16 484.69 2.426 25 48.95 4689.18 254.85 4724.90 75.29 5148.63 460.20 2.426 26 50.00 4689.41 255.38 4724.90 79.58 5130.26 441.84 2.427 27 49.47 4689.30 254.85 4724.90 76.67 5142.56 454.08 2.427 28 48.42 4689.06 253.80 4724.90 70.82 5167.11 478.57 2.427 29 50.00 4689.41 253.80 4724.90 76.05 5142.75 454.08 2.428 30 50.00 4689.41 254.85 4724.90 78.05 5136.49 447.96 2.428 31 48.95 4689.18 253.80 4724.90 72.21 5161.06 472.45 2.429 32 49.47 4689.30 254.33 4724.90 75.13 5148.79 460.20 2.429 33 48.95 4689.18 254.33 4724.90 73.75 5154.85 466.33 2.429 34 47.37 4688.83 253.80 4724.90 66.97 5185.38 496.94 2.430 35 48.42 4689.06 254.33 4724.90 71.29 5167.09 478.57 2.430 36 48.95 4689.18 255.38 4724.90 75.75 5148.60 460.20 2.430 37 47.89 4688.94 254.33 4724.90 69.90 5173.14 484.69 2.430 38 50.00 4689.41 254.33 4724.90 76.51 5142.72 454.08 2.430 39 48.42 4689.06 254.85 4724.90 72.83 5160.88 472.45 2.431 40 50.00 4689.41 253.80 4724.90 74.98 5148.94 460.20 2.431 41 47.89 4688.94 253.80 4724.90 68.35 5179.33 490.82 2.431 42 49.47 4689.30 255.38 4724.90 77.13 5142.54 454.08 2.431 43 48.95 4689.18 254.85 4724.90 74.21 5154.82 466.33 2.432 44 48.42 4689.06 254.33 4724.90 72.37 5160.90 472.45 2.432 45 49.47 4689.30 255.91 4724.91 77.58 5142.51 454.08 2.432 46 50.00 4689.41 255.38 4724.90 78.50 5136.47 447.96 2.433 47 48.42 4689.06 253.80 4724.90 69.74 5173.29 484.69 2.433 48 49.47 4689.30 254.85 4724.90 75.59 5148.76 460.20 2.433 49 46.84 4688.71 253.80 4724.90 64.50 5197.59 509.18 2.433 50 49.47 4689.30 253.80 4724.90 73.59 5155.00 466.33 2.433 51 50.00 4689.41 255.91 4724.91 78.96 5136.44 447.96 2.434 52 47.37 4688.83 254.33 4724.90 67.44 5185.36 496.94 2.434 53 50.00 4689.41 254.85 4724.90 76.97 5142.69 454.08 2.434 54 48.42 4689.06 255.38 4724.90 73.30 5160.86 472.45 2.434 55 48.95 4689.18 253.80 4724.90 71.13 5167.24 478.57 2.434 56 47.37 4688.83 253.80 4724.90 65.89 5191.55 503.06 2.435 57 48.95 4689.18 255.91 4724.91 75.14 5154.77 466.33 2.435 58 47.89 4688.94 254.33 4724.90 68.83 5179.31 490.82 2.436 59 48.95 4689.18 255.38 4724.90 74.67 5154.80 466.33 2.436 60 49.47 4689.30 253.80 4724.90 72.51 5161.18 472.45 2.436 61 47.37 4688.83 254.85 4724.90 67.92 5185.34 496.94 2.436 62 50.00 4689.41 254.33 4724.90 75.44 5148.91 460.20 2.436 63 47.89 4688.94 254.85 4724.90 70.37 5173.12 484.69 2.436 64 47.89 4688.94 253.80 4724.90 67.28 5185.51 496.94 2.437 65 48.95 4689.18 254.33 4724.90 71.60 5167.21 478.57 2.437 66 46.32 4688.59 253.80 4724.90 62.03 5209.78 521.43 2.437 67 49.47 4689.30 255.38 4724.90 76.05 5148.73 460.20 2.437 68 48.42 4689.06 254.33 4724.90 70.21 5173.27 484.69 2.437 69 49.47 4689.30 254.33 4724.90 74.06 5154.98 466.33 2.437 70 49.47 4689.30 255.91 4724.91 76.51 5148.71 460.20 2.438 71 46.84 4688.71 254.33 4724.90 64.98 5197.57 509.18 2.438 72 48.95 4689.18 254.85 4724.90 73.14 5161.01 472.45 2.438 73 50.00 4689.41 255.38 4724.90 77.43 5142.67 454.08 2.438 74 46.84 4688.71 253.80 4724.90 63.42 5203.75 515.31 2.438 75 48.42 4689.06 253.80 4724.90 68.66 5179.46 490.82 2.439 76 48.42 4689.06 255.91 4724.91 73.76 5160.83 472.45 2.439 77 49.47 4689.30 254.85 4724.90 74.52 5154.95 466.33 2.439 78 49.47 4689.30 256.43 4724.91 78.04 5142.48 454.08 2.439 79 47.37 4688.83 254.33 4724.90 66.37 5191.53 503.06 2.439 80 50.00 4689.41 255.91 4724.91 77.89 5142.64 454.08 2.439 81 48.42 4689.06 254.85 4724.90 71.76 5167.06 478.57 2.440 82 48.95 4689.18 254.33 4724.90 72.67 5161.03 472.45 2.440 83 48.95 4689.18 253.80 4724.90 70.05 5173.41 484.69 2.440 84 50.00 4689.41 254.85 4724.90 75.90 5148.89 460.20 2.440 85 47.37 4688.83 253.80 4724.90 64.81 5197.71 509.18 2.440 86 48.42 4689.06 255.38 4724.90 72.22 5167.04 478.57 2.441 87 50.00 4689.41 253.80 4724.90 73.90 5155.13 466.33 2.441 88 50.00 4689.41 256.43 4724.91 79.41 5136.41 447.96 2.441 89 48.95 4689.18 255.91 4724.91 74.07 5160.96 472.45 2.441 90 47.89 4688.94 254.33 4724.90 67.75 5185.49 496.94 2.441 91 46.32 4688.59 254.33 4724.90 62.52 5209.77 521.43 2.441 92 47.89 4688.94 255.38 4724.90 70.84 5173.10 484.69 2.441 93 48.95 4689.18 255.38 4724.90 73.60 5160.98 472.45 2.442 94 49.47 4689.30 253.80 4724.90 71.44 5167.36 478.57 2.442 95 46.84 4688.71 254.85 4724.90 65.46 5197.55 509.18 2.442 96 47.89 4688.94 253.80 4724.90 66.20 5191.67 503.06 2.442 97 48.95 4689.18 256.43 4724.91 75.60 5154.74 466.33 2.442 98 46.32 4688.59 253.80 4724.90 60.96 5215.94 527.55 2.442 99 48.42 4689.06 254.33 4724.90 69.14 5179.44 490.82 2.443 Critical Failure Surface (circle 1) Intersects: XL: 50.00 YL: Centre: XC: 79.29 YC: Generated failure surface: (20 points) 50.00 4689 41 60.98 4688.67 104.93 4689.18 115.89 4693.98 159.45 4695.86 170.22 4706.12 212.69 4709.35 223.11 4724.90 4689.41 5124.14 4688.81 4689.97 4698.02 4712.85 XR: 253.80 YR: 4724.90 Radius: R: 435.71 71.96 126.83 180.94 233.44 4688.49 4691.03 4700.45 4716.61 Slice Geometry and Properties - Critical Failure Surface (circle 1, 45 slices) 82.96 137.74 191.60 243.67 4688.44 4692.37 4703.15 4720.62 93.95 148.62 202.18 253.80 Slice X -S Base PoreWater Normal Test X -Left Area Angle Width Length Matl Cohesion Phi Weight Force Stress Factor 1 50.00 0.19 -3.1 1.16 1.17 5 50.00 25.0 18.82 0.00 17.49 1.01 2 51.16 4.92 -3.1 4.91 4.91 5 50.00 25.0 533.13 169.30 110.62 1.01 3 56.07 11.60 -3.1 4.91 4.91 5 50.00 25.0 1282.24 507.92 264.22 1.01 4 60.98 20.54 -1.7 5.49 5.50 5 50.00 25.0 2281.53 945.82 417.30 1.01 5 66.47 28.16 -1.7 5.49 5.50 5 50.00 25.0 3133.28 1322.27 572.84 1.01 6 71.96 35.41 -0.2 5.50 5.50 5 50.00 25.0 3943.25 1675.28 717.88 1.00 7 77.46 42.26 -0.2 5.50 5.50 5 50.00 25.0 4708.30 2004.35 857.15 1.00 8 82.96 48.73 1.2 5.49 5.50 5 50.00 25.0 5428.13 2309.79 985.10 1.00 9 88.45 54.82 1.2 5.49 5.50 5 50.00 25.0 6105.11 2591.29 1108.02 1.00 10 93.95 60.49 2.6 5.49 5.50 5 50.00 25.0 6732.69 2849.07 1219.03 0.99 11 99.44 65.80 2.7 5.49 5.50 5 50.00 25.0 7320.67 3082.69 1325.54 0.99 12 104.93 70.64 4.1 5.48 5.50 5 50.00 25.0 7852.99 3292.27 1419.62 0.99 13 110.41 75.18 4.1 5.48 5.50 5 50.00 25.0 8352.41 3478.35 1509.92 0.99 14 115.89 79.18 5.5 5.47 5.50 5 50.00 25.0 8788.44 3640.11 1587.13 0.99 15 121.36 82.94 5.5 5.47 5.50 5 50.00 25.0 9198.02 3777.77 1661.08 0.99 16 126.83 86.08 7.0 5.46 5.50 5 50.00 25.0 9536.67 3891.46 1721.53 0.98 17 132.29 89.06 7.0 5.46 5.50 5 50.00 25.0 9856.10 3980.89 1779.10 0.98 18 137.74 75.14 8.4 4.48 4.53 5 50.00 25.0 8306.66 3332.56 1819.33 0.98 19 142.22 76.64 8.4 4.48 4.53 5 50.00 25.0 8463.00 3360.53 1853.44 0.98 20 146.71 33.13 8.4 1.91 1.93 1 10.00 35.0 3664.88 1441.11 1869.30 0.97 21 148.62 94.99 9.9 5.41 5.50 1 10.00 35.0 10596.80 4104.99 1898.02 0.97 22 154.03 96.42 9.9 5.41 5.50 1 10.00 35.0 10881.18 4098.11 1947.96 0.97 23 159.45 97.00 11.3 5.39 5.50 1 10.00 35.0 11062.58 4067.13 1979.71 0.96 24 164.83 97.66 11.3 5.39 5.50 1 10.00 35.0 11245.67 4012.04 2011.26 0.96 25 170.22 97.40 12.8 5.36 5.50 1 10.00 35.0 11317.13 3932.68 2024.12 0.96 26 175.58 97.30 12.8 5.36 5.50 1 10.00 35.0 11399.63 3829.36 2037.39 0.96 27 180.94 35.42 14.2 1.96 2.02 1 10.00 35.0 4172.91 1376.40 2033.27 0.96 28 182.90 102.57 14.2 5.70 5.88 1 10.00 35.0 12114.04 3743.67 2022.15 0.96 29 188.60 53.59 14.2 3.00 3.09 1 10.00 35.0 6339.99 1778.91 2006.70 0.96 30 191.60 74.32 15.7 4.20 4.36 1 10.00 35.0 8802.26 2268.30 1975.97 0.96 31 195.80 73.31 15.7 4.20 4.36 1 10.00 35.0 8691.48 1976.92 1946.50 0.96 32 200.00 37.73 15.7 2.18 2.27 1 10.00 35.0 4459.33 913.00 1916.57 0.96 33 202.18 111.98 17.1 6.62 6.92 1 10.00 35.0 13024.11 2261.55 1832.74 0.96 34 208.80 62.44 17.1 3.89 4.07 1 10.00 35.0 7136.93 953.33 1701.69 0.96 35 212.69 71.05 18.5 4.85 5.12 1 10.00 35.0 8020.99 782.90 1517.68 0.96 36 217.55 63.14 18.6 4.85 5.12 1 10.00 35.0 7001.96 301.75 1318.04 0.96 37 222.40 35.00 19.7 3.00 3.19 4 0.00 45.0 3542.12 281.38 1039.62 0.92 38 225.40 37.68 20.0 3.60 3.83 1 10.00 35.0 4196.56 469.57 1064.81 0.96 39 229.00 33.02 20.0 3.60 3.83 1 10.00 35.0 3588.19 156.48 904.16 0.96 40 232.60 7.07 20.0 0.84 0.90 1 10.00 35.0 755.35 0.00 808.02 0.96 41 233.44 34.35 21.4 4.70 5.05 1 10.00 35.0 3630.50 0.00 691.54 0.96 42 238.14 25.75 21.4 4.70 5.05 1 10.00 35.0 2640.05 0.00 502.49 0.96 43 242.85 3.64 21.4 0.83 0.89 5 50.00 25.0 1.00 44 243.67 16.10 22.9 5.06 5.50 5 50.00 25.0 1.00 45 248.74 5.37 22.9 5.06 5.50 5 50.00 25.0 1.00 X -S Area: 2505.20 Path Length: 208.85 X -S Weight: 364.39 1609.74 536.75 282636.97 0.00 0.00 0.00 401.36 285.78 89.89 GALENA 7.2 Analysis Results Version: 7.2.3.05 Licensee: J & T Consulting Project: Bernhardt Sand and Gravel Pit File: P:\22036 IHC Scott Milliken Property\Slope Stability\Galena\Bernhardt SS5-REC-EQ.gmf Processed: 24 Feb 2024 14:11:31 DATA: Analysis 1 - Case SS -5 - Reclamation - Pseudo -Static Material Properties (5 materials) Material: 1 (Mohr -Coulomb Isotropic) - Sand and Gravel Cohesion Phi UnitWeight Ru Unsaturated: 10.00 35.0 115.00 Auto Saturated: 10.00 35.0 130.00 Auto Material: 2 (Mohr -Coulomb Isotropic) - Weathered Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 1000.00 0.0 110.00 Auto Saturated: 1000.00 0.0 120.00 Auto Material: 3 (Mohr -Coulomb Isotropic) - Stable Claystone Bedrock Cohesion Phi UnitWeight Ru Unsaturated: 3000.00 0.0 120.00 Auto Saturated: 3000.00 0.0 135.00 Auto Material: 4 (Mohr -Coulomb Isotropic) - Slurry Wall Cohesion Phi UnitWeight Ru Unsaturated: 0.00 45.0 100.00 Auto Saturated: 0.00 45.0 110.00 Auto Material: 5 (Mohr -Coulomb Isotropic) - Clay Cohesion Phi UnitWeight Ru Unsaturated: 50.00 25.0 100.00 Auto Saturated: 50.00 25.0 115.00 Auto Water Properties Unit weight of water: 62.400 Unit weight of water/medium above ground: 62.400 Material Profiles (9 profiles) Profile: 1 (2 points) Material beneath: 5 - Clay 0.00 4730.00 375.00 4730.00 Profile: 2 (2 points) Material beneath: 1 - Sand and Gravel 0.00 4720.30 222.40 4720.30 Profile: 3 (2 points) Material beneath: 4 - Slurry Wall 222.40 4724.90 Profile: 4 (2 points) 225.40 4720.30 Profile: 5 (3 points) 45.00 4688.30 Profile: 6 (2 points) 136.50 4688.60 Profile: 7 (4 points) 0.00 4688.40 Profile: 8 (2 points) 225.40 4688.80 Profile: 9 (5 points) 0.00 4685.40 4685.90 Slope Surface (12 points) 0.00 4688.40 4724.80 253.80 4724.90 4723.70 347.70 4723.00 225.40 4724.90 Material beneath: 1 - Sand and Gravel 375.00 4720.30 Material beneath: 5 - Clay 188.60 4720.30 200.00 4720.30 Material beneath: 1 - Sand and Gravel 200.00 4720.30 Material beneath: 2 - Weathered Claystone Bedrock 45.00 4688.30 136.50 4688.60 Material beneath: 2 - Weathered Claystone Bedrock 375.00 4688.90 Material beneath: 3 - Stable Claystone Bedrock 45.00 4685.30 136.50 4685.60 Phreatic Surface (8 points) 0.00 4716.30 289.30 Failure Surface 4688.40 4716.30 45.00 289.30 375.00 45.00 325.00 4688.30 4725.00 4724.40 208.80 303.70 4688.30 182.90 4727.00 375.00 Initial circular surface for critical search defined by: XL,XR,R Intersects: Centre: XL: XC: Earthquake Force 45.00 69.51 YL: YC: 4688.30 5187.70 Pseudo -static earthquake (seismic) coefficient: 0.070 Variable Restraints Parameter descriptor: Range of variation: Trial positions within range: XR: XL XR R 10.00 10.00 300.00 20 20 50 4724.80 4729.70 4711.80 4727.00 258.80 YR: Radius: R: 222.40 4688.80 222.40 4685.60 222.40 4724.80 314.90 4729.70 222.40 4712.80 4724.91 500.00 375.00 225.40 338.30 225.40 RESULTS: Analysis 1 - Case SS -5 - Reclamation - Pseudo -Static Bishop Simplified Method of Analysis - Circular Failure Surface Critical Failure Surface Search using Multiple Circle Generation Techniques Initial failure surface approximation - Factor of Safety: 2.312 Analysis Summary There were: 18956 successful analyses from a total of 20001 trial failure surfaces 1045 analyses terminated due to unacceptable geometry Critical (minimum) Factor of Safety: 1.72 Results Summary - Lowest 99 Factor of Safety circles Circle X -Left Y -Left X -Right Y -Right X -Centre Y -Centre Radius FoS 1 50.00 4689.41 253.80 4724.90 79.29 5124.14 435.71 1.720 <-- Critical Surface 2 49.47 4689.30 253.80 4724.90 76.83 5136.42 447.96 1.723 3 48.95 4689.18 253.80 4724.90 75.44 5142.49 454.08 1.723 4 50.00 4689.41 253.80 4724.90 78.21 5130.35 441.84 1.724 5 48.95 4689.18 254.33 4724.90 75.90 5142.46 454.08 1.725 6 49.47 4689.30 254.33 4724.90 77.29 5136.39 447.96 1.725 7 48.95 4689.18 253.80 4724.90 74.36 5148.68 460.20 1.726 8 50.00 4689.41 254.33 4724.90 78.67 5130.32 441.84 1.726 9 48.42 4689.06 253.80 4724.90 72.98 5154.74 466.33 1.727 10 49.47 4689.30 254.85 4724.90 77.74 5136.36 447.96 1.727 11 50.00 4689.41 254.85 4724.90 79.12 5130.29 441.84 1.728 12 50.00 4689.41 253.80 4724.90 77.13 5136.55 447.96 1.728 13 49.47 4689.30 253.80 4724.90 75.75 5142.62 454.08 1.729 14 48.95 4689.18 254.33 4724.90 74.83 5148.66 460.20 1.729 15 47.89 4688.94 253.80 4724.90 70.51 5166.98 478.57 1.729 16 48.42 4689.06 254.33 4724.90 73.44 5154.72 466.33 1.729 17 49.47 4689.30 254.33 4724.90 76.21 5142.59 454.08 1.730 18 48.42 4689.06 253.80 4724.90 71.90 5160.93 472.45 1.730 19 49.47 4689.30 253.80 4724.90 74.67 5148.81 460.20 1.730 20 47.89 4688.94 254.33 4724.90 70.98 5166.96 478.57 1.730 21 50.00 4689.41 255.38 4724.90 79.58 5130.26 441.84 1.730 22 50.00 4689.41 254.33 4724.90 77.59 5136.52 447.96 1.730 23 48.95 4689.18 254.85 4724.90 75.29 5148.63 460.20 1.731 24 49.47 4689.30 254.85 4724.90 76.67 5142.56 454.08 1.732 25 47.37 4688.83 253.80 4724.90 68.05 5179.21 490.82 1.732 26 48.95 4689.18 253.80 4724.90 73.28 5154.87 466.33 1.732 27 50.00 4689.41 254.85 4724.90 78.05 5136.49 447.96 1.732 28 48.95 4689.18 255.38 4724.90 75.75 5148.60 460.20 1.733 29 47.89 4688.94 253.80 4724.90 69.43 5173.16 484.69 1.733 30 49.47 4689.30 255.91 4724.91 77.58 5142.51 454.08 1.733 31 49.47 4689.30 255.38 4724.90 77.13 5142.54 454.08 1.734 32 49.47 4689.30 254.33 4724.90 75.13 5148.79 460.20 1.734 33 48.42 4689.06 253.80 4724.90 70.82 5167.11 478.57 1.734 34 50.00 4689.41 253.80 4724.90 76.05 5142.75 454.08 1.734 35 48.95 4689.18 254.33 4724.90 73.75 5154.85 466.33 1.734 36 50.00 4689.41 255.38 4724.90 78.50 5136.47 447.96 1.734 37 50.00 4689.41 255.91 4724.91 78.96 5136.44 447.96 1.734 38 50.00 4689.41 254.33 4724.90 76.51 5142.72 454.08 1.735 39 48.42 4689.06 254.85 4724.90 72.83 5160.88 472.45 1.735 40 48.95 4689.18 253.80 4724.90 72.21 5161.06 472.45 1.735 41 48.95 4689.18 254.85 4724.90 74.21 5154.82 466.33 1.735 42 48.42 4689.06 254.33 4724.90 71.29 5167.09 478.57 1.735 43 47.89 4688.94 254.33 4724.90 69.90 5173.14 484.69 1.735 44 49.47 4689.30 254.85 4724.90 75.59 5148.76 460.20 1.736 45 48.95 4689.18 255.91 4724.91 75.14 5154.77 466.33 1.736 46 47.37 4688.83 253.80 4724.90 66.97 5185.38 496.94 1.736 47 48.42 4689.06 255.38 4724.90 73.30 5160.86 472.45 1.736 48 48.42 4689.06 254.33 4724.90 72.37 5160.90 472.45 1.736 49 50.00 4689.41 253.80 4724.90 74.98 5148.94 460.20 1.736 50 50.00 4689.41 254.85 4724.90 76.97 5142.69 454.08 1.737 51 48.95 4689.18 255.38 4724.90 74.67 5154.80 466.33 1.737 52 47.89 4688.94 253.80 4724.90 68.35 5179.33 490.82 1.737 53 49.47 4689.30 256.43 4724.91 78.04 5142.48 454.08 1.737 54 49.47 4689.30 255.91 4724.91 76.51 5148.71 460.20 1.737 55 49.47 4689.30 255.38 4724.90 76.05 5148.73 460.20 1.738 56 48.42 4689.06 253.80 4724.90 69.74 5173.29 484.69 1.738 57 48.42 4689.06 255.91 4724.91 73.76 5160.83 472.45 1.738 58 47.37 4688.83 254.33 4724.90 67.44 5185.36 496.94 1.738 59 49.47 4689.30 253.80 4724.90 73.59 5155.00 466.33 1.738 60 50.00 4689.41 256.43 4724.91 79.41 5136.41 447.96 1.738 61 50.00 4689.41 255.91 4724.91 77.89 5142.64 454.08 1.738 62 50.00 4689.41 255.38 4724.90 77.43 5142.67 454.08 1.739 63 46.84 4688.71 253.80 4724.90 64.50 5197.59 509.18 1.739 64 47.89 4688.94 254.85 4724.90 70.37 5173.12 484.69 1.739 65 47.37 4688.83 254.85 4724.90 67.92 5185.34 496.94 1.739 66 48.95 4689.18 253.80 4724.90 71.13 5167.24 478.57 1.739 67 50.00 4689.41 254.33 4724.90 75.44 5148.91 460.20 1.739 68 47.89 4688.94 254.33 4724.90 68.83 5179.31 490.82 1.739 69 48.95 4689.18 254.85 4724.90 73.14 5161.01 472.45 1.739 70 49.47 4689.30 254.33 4724.90 74.06 5154.98 466.33 1.740 71 48.95 4689.18 256.43 4724.91 75.60 5154.74 466.33 1.740 72 48.95 4689.18 254.33 4724.90 71.60 5167.21 478.57 1.740 73 48.95 4689.18 255.91 4724.91 74.07 5160.96 472.45 1.740 74 49.47 4689.30 254.85 4724.90 74.52 5154.95 466.33 1.740 75 47.37 4688.83 253.80 4724.90 65.89 5191.55 503.06 1.740 76 49.47 4689.30 253.80 4724.90 72.51 5161.18 472.45 1.740 77 48.42 4689.06 254.33 4724.90 70.21 5173.27 484.69 1.740 78 48.42 4689.06 255.38 4724.90 72.22 5167.04 478.57 1.740 79 50.00 4689.41 256.96 4724.91 79.87 5136.38 447.96 1.741 80 50.00 4689.41 254.85 4724.90 75.90 5148.89 460.20 1.741 81 48.42 4689.06 254.85 4724.90 71.76 5167.06 478.57 1.741 82 46.84 4688.71 254.33 4724.90 64.98 5197.57 509.18 1.741 83 47.89 4688.94 253.80 4724.90 67.28 5185.51 496.94 1.741 84 49.47 4689.30 256.43 4724.91 76.97 5148.68 460.20 1.741 85 48.95 4689.18 255.38 4724.90 73.60 5160.98 472.45 1.741 86 47.89 4688.94 255.38 4724.90 70.84 5173.10 484.69 1.741 87 49.47 4689.30 255.91 4724.91 75.45 5154.90 466.33 1.741 88 47.89 4688.94 255.91 4724.91 71.31 5173.07 484.69 1.741 89 48.95 4689.18 254.33 4724.90 72.67 5161.03 472.45 1.742 90 46.32 4688.59 253.80 4724.90 62.03 5209.78 521.43 1.742 91 49.47 4689.30 255.38 4724.90 74.98 5154.93 466.33 1.742 92 47.37 4688.83 254.33 4724.90 66.37 5191.53 503.06 1.742 93 48.42 4689.06 253.80 4724.90 68.66 5179.46 490.82 1.742 94 48.42 4689.06 255.91 4724.91 72.69 5167.02 478.57 1.742 95 50.00 4689.41 256.43 4724.91 78.35 5142.61 454.08 1.742 96 50.00 4689.41 255.91 4724.91 76.82 5148.84 460.20 1.742 97 48.42 4689.06 256.43 4724.91 73.16 5166.99 478.57 1.742 98 46.84 4688.71 253.80 4724.90 63.42 5203.75 515.31 1.742 99 50.00 4689.41 255.38 4724.90 76.36 5148.86 460.20 1.743 Critical Failure Surface (circle 1) Intersects: XL: 50.00 YL: Centre: XC: 79.29 YC: Generated failure surface: (20 points) 50.00 4688.67 104.93 4693.98 159.45 4706.12 4689.41 4689.18 4695.86 60.98 115.89 170.22 4689.41 5124.14 4688.81 4689.97 4698.02 XR: 253.80 YR: 4724.90 Radius: R: 435.71 71.96 126.83 180.94 4688.49 4691.03 4700.45 82.96 137.74 191.60 4688.44 4692.37 4703.15 93.95 148.62 202.18 212.69 4724.90 4709.35 223.11 4712.85 233.44 4716.61 243.67 4720.62 253.80 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 50.00 0.19 -3.1 1.16 1.17 5 50.00 25.0 18.82 0.00 18.03 1.02 2 51.16 4.92 -3.1 4.91 4.91 5 50.00 25.0 533.13 169.30 111.40 1.02 3 56.07 11.60 -3.1 4.91 4.91 5 50.00 25.0 1282.24 507.92 265.37 1.02 4 60.98 20.54 -1.7 5.49 5.50 5 50.00 25.0 2281.53 945.82 418.11 1.01 5 66.47 28.16 -1.7 5.49 5.50 5 50.00 25.0 3133.28 1322.27 573.85 1.01 6 71.96 35.41 -0.2 5.50 5.50 5 50.00 25.0 3943.25 1675.28 718.05 1.00 7 77.46 42.26 -0.2 5.50 5.50 5 50.00 25.0 4708.30 2004.35 857.35 1.00 8 82.96 48.73 1.2 5.49 5.50 5 50.00 25.0 5428.13 2309.79 984.01 0.99 9 88.45 54.82 1.2 5.49 5.50 5 50.00 25.0 6105.11 2591.29 1106.82 0.99 10 93.95 60.49 2.6 5.49 5.50 5 50.00 25.0 6732.69 2849.07 1216.17 0.99 11 99.44 65.80 2.7 5.49 5.50 5 50.00 25.0 7320.67 3082.69 1322.45 0.99 12 104.93 70.64 4.1 5.48 5.50 5 50.00 25.0 7852.99 3292.27 1414.58 0.98 13 110.41 75.18 4.1 5.48 5.50 5 50.00 25.0 8352.41 3478.35 1504.56 0.98 14 115.89 79.18 5.5 5.47 5.50 5 50.00 25.0 8788.44 3640.11 1579.57 0.98 15 121.36 82.94 5.5 5.47 5.50 5 50.00 25.0 9198.02 3777.77 1653.16 0.98 16 126.83 86.08 7.0 5.46 5.50 5 50.00 25.0 9536.67 3891.46 1711.24 0.98 17 132.29 89.06 7.0 5.46 5.50 5 50.00 25.0 9856.10 3980.89 1768.43 0.98 18 137.74 75.14 8.4 4.48 4.53 5 50.00 25.0 8306.66 3332.56 1806.18 0.97 19 142.22 76.64 8.4 4.48 4.53 5 50.00 25.0 8463.00 3360.53 1839.99 0.97 20 146.71 33.13 8.4 1.91 1.93 1 10.00 35.0 3664.88 1441.11 1850.81 0.95 21 148.62 94.99 9.9 5.41 5.50 1 10.00 35.0 10596.80 4104.99 1875.98 0.95 22 154.03 96.42 9.9 5.41 5.50 1 10.00 35.0 10881.18 4098.11 1924.95 0.95 23 159.45 97.00 11.3 5.39 5.50 1 10.00 35.0 11062.58 4067.13 1952.71 0.94 24 164.83 97.66 11.3 5.39 5.50 1 10.00 35.0 11245.67 4012.04 1983.37 0.94 25 170.22 97.40 12.8 5.36 5.50 1 10.00 35.0 11317.13 3932.68 1992.19 0.94 26 175.58 97.30 12.8 5.36 5.50 1 10.00 35.0 11399.63 3829.36 2004.69 0.94 27 180.94 35.42 14.2 1.96 2.02 1 10.00 35.0 4172.91 1376.40 1996.83 0.94 28 182.90 102.57 14.2 5.70 5.88 1 10.00 35.0 12114.04 3743.67 1984.77 0.94 29 188.60 53.59 14.2 3.00 3.09 1 10.00 35.0 6339.99 1778.91 1968.09 0.94 30 191.60 74.32 15.7 4.20 4.36 1 10.00 35.0 8802.26 2268.30 1932.95 0.93 31 195.80 73.31 15.7 4.20 4.36 1 10.00 35.0 8691.48 1976.92 1902.37 0.93 32 200.00 37.73 15.7 2.18 2.27 1 10.00 35.0 4459.33 913.00 1871.85 0.93 33 202.18 111.98 17.1 6.62 6.92 1 10.00 35.0 13024.11 2261.55 1784.39 0.93 34 208.80 62.44 17.1 3.89 4.07 1 10.00 35.0 7136.93 953.33 1654.56 0.93 35 212.69 71.05 18.5 4.85 5.12 1 10.00 35.0 8020.99 782.90 1470.33 0.93 36 217.55 63.14 18.6 4.85 5.12 1 10.00 35.0 7001.96 301.75 1274.31 0.93 37 222.40 35.00 19.7 3.00 3.19 4 0.00 45.0 3542.12 281.38 992.89 0.88 38 225.40 37.68 20.0 3.60 3.83 1 10.00 35.0 4196.56 469.57 1029.54 0.93 39 229.00 33.02 20.0 3.60 3.83 1 10.00 35.0 3588.19 156.48 871.81 0.93 40 232.60 7.07 20.0 0.84 0.90 1 10.00 35.0 755.35 0.00 777.71 0.93 41 233.44 34.35 21.4 4.70 5.05 1 10.00 35.0 3630.50 0.00 663.74 0.93 42 238.14 25.75 21.4 4.70 5.05 1 10.00 35.0 2640.05 0.00 482.15 0.93 43 242.85 3.64 21.4 0.83 0.89 5 50.00 25.0 364.39 0.00 387.38 0.97 44 243.67 16.10 22.9 5.06 5.50 5 50.00 25.0 1609.74 0.00 274.25 0.97 45 248.74 5.37 22.9 5.06 5.50 5 50.00 25.0 536.75 0.00 84.11 0.97 X -S Area: 2505.20 Path Length: 208.85 X -S Weight: 282636.97 APPENDIX D J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis W:\2023\Frederick\23.3020.A Bernhardt Property Wells\ACAD new template 1.16.23\TEMPLATE_2013.dwg 3/24/2023 12:36 PM W:\2023\Frederick\23.3020.A Bernhardt Property Wells\ACAD new template 1.16.23\TEMPLATE_2013.dwg 3/24/2023 12:37 PM of.79 -�_- F • h,. I 1 y ti / r j', / / / r' r)// ,/ /V /f,' APPROXIMATE SCALE: 1 INCH = 500 FEET SITE PLAN PROVIDED BY CLIENT / • pIWO r WV De OM m.r. Ho "„Rixr e" wr AIL 7'" MW -1 MONITOR WELL NUMBER AND APPROXIMATE LOCATION 500' 1,000' PROJECT NO: 23.3020 PROJECT NAME: Bernhardt Property Monitor Wells DRAWN BY: JBE CHECKED BY: DWG DATE: 03.24.23 REV. DATE: FIGURE 2 Site Plan and Monitor Well Locations C'MT LE. R V 1 C E S 23.3020 PROJECT NAME PROJECT NUMBER BORING LOCATION See FigureBernhardt P2roperty Monitor Wells BORING ELEVATION DRILLING COMPANY/RIG Dakota Drilling/CME-55 CMTTS REP. J. Edwards DRILLING METHOD 7in. Diameter HSA DATE STARTED 3/23/2023 HAMMER SYSTEM Rope & Cathead DATE COMPLETED 3/23/2023 A /� \N V /� 1 V V /� Page 1 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) WELL DIAGRAM Water Level and Depth of Cave (ft) BULK - - — s —10 - —15 -25- --- --- CLAY, sandy, moist, dark brown. 1 �;; -Concrete pad with 3' steel stickup - Bentonite 2" 540 PVC Riser - 2" S40 PVC .01" Slotted Screen Natural "cave-in" sand pack to - - — - - — - - - - - - - — - SAND, with silt, moist, brown. :. ' • °i ; ;or b .. o; :. d'° ..o'°b *4 lb* ;J.° •O'' 4 *4 .S•41: ; lb. • v;rr:CC: ..0••••4t; lb.:. .S•41: ..0.•..4t:: '• l* • °:;.ti° °:;.ti° ..orb °,W° °,W° .'oab SAND, well graded, with gravel, typical gravels 1-2" in dimension max, estimated 2-3" in dimension from 27' to 35', very moist to wet, brown. 354P.:•—._114 •rob •..o'°b '.0''� Its e.. '.:x s •,,:Eire ello—‘,41.4 4,0 b� s • a .o- j,+ f$•• f$•• • i.e.. ft* s j$« $•• �� • • `%43 ..j+ M- .el ij+ LEGEND y WATER LEVEL AT TIME OF DRILLING # WATER LEVEL # DAYS AFTER DRILLING -.# DEPTH OF CAVE # DAYS AFTER DRILLING 1 DEPTH OF REFUSAL „ SPLIT SPOON f" T E C H N I C A L ESER R VICES 23.3020 PROJECT NAME PROJECT NUMBER BORING LOCATION See FigureBernhardt P2roperty Monitor Wells BORING ELEVATION DRILLING COMPANY/RIG Dakota Drilling/CME-55 CMTTS REP. J. Edwards DRILLING METHOD 7in. Diameter HSA DATE STARTED 3/23/2023 HAMMER SYSTEM Rope & Cathead DATE COMPLETED 3/23/2023 A /� \N V /� 1 V V /� Page 2 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG Water Level and Depth of Cave (ft) BULK ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) WELL DIAGRAM :::. SANDSTONE, fine grained, silty, very hard, wet, gray. '• 70.--7..• '• • •••• •••• • •••• •••• • 50/5]< •••••• • 39.42•• - - Boring terminated at 39.42 feet LEGEND y WATER LEVEL AT TIME OF DRILLING „ SPLIT SPOON # WATER LEVEL # DAYS AFTER DRILLING -.# DEPTH OF CAVE # DAYS AFTER DRILLING CM TTECHNICAL 1 DEPTH OF REFUSALESERVICES PROJECT NAME Bernhardt Property Monitor Wells PROJECT NUMBER BORING LOCATION See Figure 2 BORING ELEVATION DRILLING COMPANY/RIG Dakota Drilling/CME-55 CMTTS REP. DRILLING METHOD 7in. Diameter HSA DATE STARTED HAMMER SYSTEM Rope & Cathead DATE COMPLETED 23.3020 J. Edwards 3/22/2023 3/22/2023 MW -2 Page 1 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) WELL DIAGRAM Water Level and Depth of Cave (ft) BULK — 5 - -10 - - -20- — — — — — — -30 — — - - >< ,^y - SAND, clayey, to CLAY, sandy, moist, dark brown. -Concrete pad with 3' steel stick up - Bentonite 2" S40 PVC• Riser V_ Natural "cave-in" sand pack to 5.0' -2" S40 PVC .01" Slotted 4 t,. •.: SANDSTONE, finegrained, silty,very moist to wet, brown to gray. 50/7 y # -.# 1 LEGEND AT # CAVE REFUSAL T E C H N I C A L ESER R VICES WATER LEVEL WATER LEVEL DEPTH OF DEPTH OF TIME OF DRILLING „ SPLIT SPOON DAYS AFTER DRILLING # DAYS AFTER DRILLING f" PROJECT NAME Bernhardt Property Monitor Wells BORING LOCATION See Figure 2 DRILLING COMPANY/RIG Dakota Drilling/CME-55 DRILLING METHOD 7in. Diameter HSA HAMMER SYSTEM Rope & Cathead PROJECT NUMBER 23.3020 BORING ELEVATION CMTTS REP. J. Edwards DATE STARTED 3/22/2023 DATE COMPLETED 3/22/2023 MW -2 Page 2 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) WELL DIAGRAM Water Level and Depth of Cave (ft) p BULK - •••• •••• .i•=�.i Di��i• ••• •••• •••• •••• .....4, I i��i• •••• •••• 39:•.. -II. 4. Boring terminated at 39 feet LEGEND y WATER LEVEL AT TIME OF DRILLING „ SPLIT SPOON # WATER LEVEL # DAYS AFTER DRILLING -.# DEPTH OF CAVE # DAYS AFTER DRILLING CM -r TECHNICAL 1 DEPTH OF REFUSAL SER VICES PROJECT NAME Bernhardt Property Monitor Wells PROJECT NUMBER 23.3020 BORING LOCATION See Figure 2 BORING ELEVATION DRILLING COMPANY/RIG Dakota Drilling/CME-55 CMTTS REP. J. Edwards DRILLING METHOD 7in. Diameter HSA DATE STARTED 3/23/2023 HAMMER SYSTEM Rope & Cathead DATE COMPLETED 3/23/2023 MW -3 Page 1 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG G O 2 0 In O z c x WELL DIAGRAM Water Level and Depth of Cave (ft) BULK -10- -15- - - - - -25- - - - - - _-_- _ CLAY, sandy, moist, dark brown. --•t• ;. i . :; .-20- -Concrete pad with 3' steel stickup - Bentonite -2" S40 PVC Riser V_ cave-in" sand pack to 8.0' 2" S40 PVC .01" Slotted Screen - - - - - - - - - - - - - - - - - - - - '•;,• SAND, silty, fine-grained, moist, light brown. SAND, poorly graded, with silt, moist, brown. � • ;•. ;� ; . b$, ? t• ••Natural ►�1,y t� f—te "4• t,—+• ►tj te,,t_le k•�• ' i.—Zts t.t ‘,A4 ti b$, ? t• t,rf• tp ►f De.;J. K:•• .0 °b :;yta '0°b o;Dit:tyy Dit:tig ?..0.".4b: :;ta ;orb v; .; :•jia ;o :b .. o;:�yy :;ta ?:: t:y.; ?..0.".4b: v;� ?..0.".4b: i' 0.'i dot•"ya • SAND, well -graded, with gravel, gravels typically 1" or less in dimension, wet, brown. b y:, V • --•t• t ,-j? ti��f ) '4• rt t� ! 6% y # -.# 1 LEGEND AT CAVE REFUSAL TECHNICAL ER R VICES WATER LEVEL WATER LEVEL DEPTH OF DEPTH OF TIME OF DRILLING „ SPLIT SPOON # DAYS AFTER DRILLING # DAYS AFTER DRILLING CM -r ES PROJECT NAME Bernhardt Property Monitor Wells PROJECT NUMBER BORING LOCATION See Figure 2 BORING ELEVATION DRILLING COMPANY/RIG Dakota Drilling/CME-55 CMTTS REP. DRILLING METHOD 7in. Diameter HSA DATE STARTED HAMMER SYSTEM Rope & Cathead DATE COMPLETED 23.3020 J. Edwards 3/23/2023 3/23/2023 MW -3 Page 2 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) WELL DIAGRAM Water Level and Depth of Cave (ft) BULK - - co .0 driller felt cobbles (estimated 3-4" in dimension) 37'-40' :?-',:? •;:r��y • �•_'• •• •:;•--••�,� • ;•—L• • :. —. — • •. — — - - — — • • CLAYSTONE, with interbedded SANDSTONE lenses, fine-grained sand, very hard, very moist, gray. 44.5p. • ••.0..4—*•..• • I • • •� • • 50/6 X Boring terminated at 44.5 feet y # -.# 1 LEGEND AT # CAVE REFUSAL T E C H N I C A L ESER R VICES WATER LEVEL WATER LEVEL DEPTH OF DEPTH OF TIME OF DRILLING „ SPLIT SPOON DAYS AFTER DRILLING # DAYS AFTER DRILLING f" 23.3020 PROJECT NAME PROJECT NUMBER BORING LOCATION See FigureBernhardt P2roperty Monitor Wells BORING ELEVATION DRILLING COMPANY/RIG Dakota Drilling/CME-55 CMTTS REP. J. Edwards DRILLING METHOD 7in. Diameter HSA DATE STARTED 3/22/2023 HAMMER SYSTEM Rope & Cathead DATE COMPLETED 3/22/2023 A /� \ V V /� /- V Page 1 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) WELL DIAGRAM Water Level and Depth of Cave (ft) BULK —5— - - —10— —15— - - —20- -25- -30- - - - - - - _—_- -- CLAY, sandy, moist, dark brown. z -Concrete pad with 3' steel stickup - Bentonite — — SAND, gravelly, 1-2" gravels, with silt, moist, brown. :� •... 9 ;orb o;�. 6i .ro :b 4 •.(:.• �Sand .6.<1.,9 ..o .b ;: O t is ..o 0— b •.(:.• 6 a ; :• 1 a t. o�J .6.<1.,9 oQy �o :b o�J t;.a o A,•b III_ • • SAND, with gravel, gravels typically less than 1" in dimension, wet, brown. 33;x:.-�•.4 :.*P41—.317,3 '�='�_ 1s •ft �#i.—. 1t •� t �.-.ti oh b� �,, ',i �,, b•,,: �,, � b•.: t:.:,,__,..1. •alt 's • 1t .41 t k - 2" S40 PVC Riser Washed Silica to 6' Natural "cave-in" sand pack to 11.0' - 2" S40 PVC .01" Slotted Screen — — — — — — - - - - - - - - - - - - - • Eire ft4 —)s —)S _— —.ti � �; *. •q ,'tt-10/20 CLAYSTONE, with interbedded SANDSTONE lenses, fine-grained sand, silty, very hard, very moist, gray. 9 Y • • • LEGEND y WATER LEVEL AT TIME OF DRILLING # WATER LEVEL # DAYS AFTER DRILLING -.# DEPTH OF CAVE # DAYS AFTER DRILLING 1 DEPTH OF REFUSAL „ SPLIT SPOON f" T E C H N I C A L ESER R VICES 23.3020 PROJECT NAME PROJECT NUMBER BORING LOCATION See FigureBernhardt P2roperty Monitor Wells BORING ELEVATION DRILLING COMPANY/RIG Dakota Drilling/CME-55 CMTTS REP. J. Edwards DRILLING METHOD 7in. Diameter HSA DATE STARTED 3/22/2023 HAMMER SYSTEM Rope & Cathead DATE COMPLETED 3/22/2023 A /� \ V V /� /- V Page 2 of 2 DEPTH (k) BLOW COUNT SAMPLE GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) WELL DIAGRAM Water Level and Depth of Cave (ft) p BULK • • . •, • R•..-. • • 39.42 .. 4, .• .. 50/5]< _ Boring terminated at 39.42 feet LEGEND y WATER LEVEL AT TIME OF DRILLING „ SPLIT SPOON # WATER LEVEL # DAYS AFTER DRILLING -.# DEPTH OF CAVE # DAYS AFTER DRILLING CM -r TECHNICAL 1 DEPTH OF REFUSAL SER VICES dt Property Aggregate Exploration ACAD Boring Location Map(1).dwg 1/19/2022 2:49 PM X, r TB -7 TB -8 It ■ !L TB -9 TB -10 TB -11 BACKGROUND IMAGE FROM GOOGLE EARTH TB -12 TB -14 TB -16 TB -13 LEGEND: TB -13 BORING NUMBER AND APPROXIMATE LOCATION APPROXIMATE FIELD BOUNDARY 0 di 400' TB -15 800' APPROXIMATE SCALE: 1 INCH = 400 FEET FIGURE 2.2 Field 2 Boring Location Plan PROJECT NO: PROJECT NAME: DRAWN BY: DWG DATE: 22.3007 Bernhardt Property ZLM 01.19.21 CHECKED BY: REV. DATE: JBE CESARE, INC. Geoterhnieal Engineers & Ctln.YtruLtitn Materiels Consultants. PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER BORING LOCATION 40.30249 / -104.83856 BORING ELEVATION LOCATION NOTES 40.30249/-104.83856 CESARE REP. DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 22.3007 Z. Moore 1/10/2022 1/10/2022 TB -7 Page 1 of 1 DEPTH (ft) BLOW COUNT SAMPLE GRAPHIC LOG O 2 c In O z DEPTH (R) DEPTH (ft) —5— —10- - — CLAY, sandy, with gravel, slightly moist to moist, light brown. 8 — — :ti'. . SAND, silty, scattered gravels, slightly moist to moist, brown to gray brown. '. 12V - - CLAYSTONE, very hard, slightly moist, brown to dark brown. 14.2— — �50/2/' Boring terminated at 14.2 feet V V# -.# T LEGEND AT TIME OF DRILLING # DAYS AFTER DRILLING CAVE # DAYS AFTER DRILLING REFUSAL CESARE, INC. Gentechnieal Engineer% & Contraction Material% Cmrwllani% WATER LEVEL WATER LEVEL DEPTH OF DEPTH OF PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.29969 / -104.83811 BORING ELEVATION LOCATION NOTES 40.29969/-104.83811 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -8 Page 1 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) - --._ . - CLAY, sandy, scattered gravel, slightly moist, brown. 3.5 - - 1 _ - - — - - - - - - - - - - - - - - - - ;• 0 �','p a.V. .b..*.0 .•. � •0..... .S ) 0 6 )U•'.0 � 6 )U•'.0 6 )U•'.0 1'0:•- )L..'.0 c, o.:' a.V. .Lu'.0 a.V. .L.'.0 ••°S••�Q•• .Lu'.o o.:' a.V. .Lu'.0 1.V. SAND, with gravel to SAND, (minor gravel, 5-15%), moist to wet, brown. -5 -10 - - - - -15--;;,:•:(1, - - - - -20- - - -25 -30 V V# -.# r LEGEND INC. Materials Consultants WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING CESARE, Gentechnieal Engineers & Construction DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration BORING LOCATION 40.29969 / -104.83811 LOCATION NOTES 40.29969/-104.83811 DRILLING COMPANY/RIG Dakota Drilling/CME-55 DRILLING METHOD 6in. Diameter SSA PROJECT NUMBER 22.3007 BORING ELEVATION CESARE REP. Z. Moore DATE STARTED 1/10/2022 DATE COMPLETED 1/10/2022 TB -8 Page 2 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) a.- 36 CLAYSTONE, moist, gray. 39 Boring terminated at 39 feet y # -.# T LEGEND CESARE, INC. Gentechnieal Engineer% & Contraction Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.30285 / -104.83679 BORING ELEVATION LOCATION NOTES 40.30285/-104.83679 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -9 Page 1 of 1 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) - CLAY, sandy, with gravel, dry to slightly moist, brown. 3 - - ,,,,.,,,:.4 SAND, with gravel, with clay, very moist to wet, gray -brown. _ 'SV. t :O • 1 _ 'SV. .ti'.(' -10 'S'Q. - - .Lu'.0 'SV. .ti'.(' 'SV. Lu'.0 15 —15 •••• SANDSTONE, silty, slightly moist, blue -gray. •••• •••• • •••• •••• • •••• •••• • •••• •••• • •••• 20 —20 Boring terminated at 20 feet LEGEND V WATER LEVEL AT TIME OF DRILLING V# WATER LEVEL # DAYS AFTER DRILLING CESARE, -.# DEPTH OF CAVE # DAYS AFTER DRILLING INC. Gentechnieal Engineer% & Contraction Material% Cnnsullani% T DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.30036 / -104.83708 BORING ELEVATION LOCATION NOTES 40.30036/-104.83708 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -10 Page 1 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) - - - - 5� — _- CLAY, sandy, moist, brown. 2.5 - - - — — 1 - - - - - - - - - - - - - - - - - — — — — ;"'• .t.'":•(: o::•• .Lu•:0 a.V. .Lu•.0 b0 . •:o . •:o t.':. .a (: ).;,:•:(1, . O.:' .•:o . •:o .L.•:o a.V. .Lu•.0 a.V. .Lu•.0 SAND, with gravel, with clay, moist to wet, light brown. -10 —15 - - -20- - - -25 -30 V V# -.# r LEGEND INC. Materials Consultants WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING CESARE, Gentechnieal Engineers & Construction DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration BORING LOCATION 40.30036 / -104.83708 LOCATION NOTES 40.30036/-104.83708 DRILLING COMPANY/RIG Dakota Drilling/CME-55 DRILLING METHOD 6in. Diameter SSA PROJECT NUMBER 22.3007 BORING ELEVATION CESARE REP. Z. Moore DATE STARTED 1/10/2022 DATE COMPLETED 1/10/2022 TB -10 Page 2 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) a.- 36 CLAYSTONE, slightly moist, gray. 39 Boring terminated at 39 feet y # -.# T LEGEND CESARE, INC. Gentechnieal Engineer% & Contraction Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.29903 / -104.83722 BORING ELEVATION LOCATION NOTES 40.29903/-104.83722 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -11 Page 1 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) 5 — CLAY, with sand to sandy, moist, brown. 4 ;•%'% 1.4.5:— •Q• .4'A • o a.0 • .z,:•:• a: ,.• J .a.0 .2.: •: o �o 1 •.:6 •.:6 .a•Q. .tu'A •.:6 •.:6 .t. •:•:o .1:1-\o SAND, (minor gravel, 5-15%), moist to wet, light brown. — — y - - — — — — — — — — -10 —15 —20 —25 \•o.:.• —30 V V# -.# T LEGEND INC. Material% Cnnsullani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING CESARE, Gentechnieal Engineer% & Contraction DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration BORING LOCATION 40.29903 / -104.83722 LOCATION NOTES 40.29903/-104.83722 DRILLING COMPANY/RIG Dakota Drilling/CME-55 DRILLING METHOD 6in. Diameter SSA PROJECT NUMBER 22.3007 BORING ELEVATION CESARE REP. Z. Moore DATE STARTED 1/10/2022 DATE COMPLETED 1/10/2022 TB -11 Page 2 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) :a• 37 CLAYSTONE, slightly moist to moist, gray. 39 Boring terminated at 39 feet y # -.# T LEGEND CESARE, INC. Gentechnieal Engineer% & Contraction Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.30109 / -104.83478 BORING ELEVATION LOCATION NOTES 40.30109/-104.83478 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -12 Page 1 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) — 5 — - CLAY, with sand, moist, brown. 3 ;• �'� .:' o.:'• 'Q a. -c3:. .taN.(: 'SV• . .Lu'.0 'SV• . .Lu'.(1 :.• i.Q •t."•,.:•° .S.Q. .Lu'.0 'Q 1.•0:. .Lu'.0 .S.Q• . .Lu'.0 .S.Q• . •L.'.0 o.:' .S.t) .Lu'.0 .S.Q. .Lu'.0 Qo !'".• SAND, with gravel, moist to wet, brown. — - — - N _ — - — - — — — - —10 —15 —20 —25 —30 V V# -.# r LEGEND INC. Materials Consultants WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING CESARE, Gentechnieal Engineers & Construction DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration BORING LOCATION 40.30109 / -104.83478 LOCATION NOTES 40.30109/-104.83478 DRILLING COMPANY/RIG Dakota Drilling/CME-55 DRILLING METHOD 6in. Diameter SSA PROJECT NUMBER 22.3007 BORING ELEVATION CESARE REP. Z. Moore DATE STARTED 1/10/2022 DATE COMPLETED 1/10/2022 TB -12 Page 2 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) ��• 36.5 _ CLAYSTONE, slightly moist, gray. 39 Boring terminated at 39 feet y # -.# T LEGEND CESARE, INC. Gentechnieal Engineer% & Contraction Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.29914 / -104.83508 BORING ELEVATION LOCATION NOTES 40.29914/-104.83508 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -13 Page 1 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) 5 — CLAY, with sand to sandy, scattered gravel, slightly moist, brown. 5 ;•%'% !". 'SV. .4.0 'S•V. 'S•V. .b:•.() :•• 1.Q• .4•.ci 1.0 SAND, with gravel, wet, brown. — - N - — — — - — — — — —10 —15 —20 VO 'SV. 'SV. 'S'Q. .S.Q• .S.Q• —25 —30 \o.:'• V V# -.# T LEGEND INC. Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING CESARE, Gentechnieal Engineer% & Contraction DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration BORING LOCATION 40.29914 / -104.83508 LOCATION NOTES 40.29914/-104.83508 DRILLING COMPANY/RIG Dakota Drilling/CME-55 DRILLING METHOD 6in. Diameter SSA PROJECT NUMBER 22.3007 BORING ELEVATION CESARE REP. Z. Moore DATE STARTED 1/10/2022 DATE COMPLETED 1/10/2022 TB -13 Page 2 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) a.- 36 CLAYSTONE, moist, blue -gray. 39 Boring terminated at 39 feet y # -.# T LEGEND CESARE, INC. Gentechnieal Engineer% & Contraction Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER BORING LOCATION 40.30327 / -104.83175 BORING ELEVATION LOCATION NOTES 40.30327/-104.83175 CESARE REP. DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 22.3007 Z. Moore 1/10/2022 1/10/2022 TB -14 Page 1 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) ,�'` SAND, clayey, with gravel, slightly moist, brown. 1 2 ;• '� SAND, with gravel, wet, brown. 5 :: o•'Q• '"• 1 — — .z ..?: • :o .: • :o• : .z,:•:o — .° — i a —20— •l.• a. ' — — •c:•,-): — — —25 •'•c3 •'•c3 C. —30 .• — — .' •Q• .Lu•A • •c3 :f\0 35 LEGEND y WATER LEVEL AT TIME OF DRILLING # WATER LEVEL # DAYS AFTER DRILLING CESARE, -.# DEPTH OF CAVE # DAYS AFTER DRILLING INC. DEPTH OF REFUSAL T Gentechnieal Engineers & Construction Materials Consultants PROJECT NAME Bernhardt Property Aggregate Exploration BORING LOCATION 40.30327 / -104.83175 LOCATION NOTES 40.30327/-104.83175 DRILLING COMPANY/RIG Dakota Drilling/CME-55 DRILLING METHOD 6in. Diameter SSA PROJECT NUMBER 22.3007 BORING ELEVATION CESARE REP. Z. Moore DATE STARTED 1/10/2022 DATE COMPLETED 1/10/2022 TB -14 Page 2 of 2 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) CLAYSTONE, slightly moist, gray. 39 Boring terminated at 39 feet y # -.# T LEGEND CESARE, INC. Gentechnieal Engineer% & Contraction Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.30108 / -104.83095 BORING ELEVATION LOCATION NOTES 40.30108/-104.83095 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -15 Page 1 of 1 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) — 5 — - CLAY, with sand, slightly moist, brown. 3 ;• '•. : J. o.:• •S•Q. .Lu•:0 'S.D .Lu•.0 'S.D .L.•.0 ,.• a.D • a.D '.'Q. a.D a•.D • .•-• • )b.*.o )b.*.o •S•Q. )Lu•:0 o SAND, with silt, (minor gravel, 5-15%), moist to wet, light brown to brown to gray brown. 32 — — - - _ - - - - - - — - —10 -15 -20 -25 -30— CLAYSTONE, slightly moist, gray. 34 Boring terminated at 34 feet V V# -.# T LEGEND INC. Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING CESARE, Gentechnieal Engineer% & Contraction DEPTH OF REFUSAL PROJECT NAME Bernhardt Property Aggregate Exploration PROJECT NUMBER 22.3007 BORING LOCATION 40.29987 / -104.83309 BORING ELEVATION LOCATION NOTES 40.29987/-104.83309 CESARE REP. Z. Moore DRILLING COMPANY/RIG Dakota Drilling/CME-55 DATE STARTED 1/10/2022 DRILLING METHOD 6in. Diameter SSA DATE COMPLETED 1/10/2022 TB -16 Page 1 of 1 DEPTH (ft) SAMPLE BLOW COUNT GRAPHIC LOG ELEVATION (ft) MATERIAL DESCRIPTION DEPTH (R) DEPTH (ft) 5 - CLAY, sandy, with gravel, slightly moist, brown. 4 °"..' •S•Q• .Lu•;ci 1.0 1.0 .t).•.(2. :•• 1.Q. • •SV. VO • •-•.• o.:6 •SV. •SV. •SV. 4 o ; • .S.Q SAND, with gravel, moist to wet, brown. 33 — — - - - - — - — - - - — —10 -15 -20- —25 —30 CLAYSTONE, slightly moist, gray. 34 Boring terminated at 34 feet V V# -.# T LEGEND INC. Material% Cmrwllani% WATER LEVEL AT TIME OF DRILLING WATER LEVEL # DAYS AFTER DRILLING DEPTH OF CAVE # DAYS AFTER DRILLING CESARE, Gentechnieal Engineer% & Contraction DEPTH OF REFUSAL APPENDIX E J&T Consulting, Inc. VWV Clyde & Co. — Bernhardt Sand and Gravel Pit Slope Stability Analysis Peak Acceleration (%g) with 2% Probability of Exceedance in 50 Years USGS Map, Oct. 2002rev 125°W 120°W 95°W 105°W _ 50°N 100°W 100°W 45°N 40°N 35°N 30°N 25°N 95°W 300 200 160 120 80 60 50 40 30 20 18 16 14 12 10 8 6 4 2 0 115°W 110°W 105°W Hello