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Home My WebLink About20163516.tiffDATE: COLORADO Division of Reclamation, Mining and Safety Department of Natural Resources 1313 Sherman St. Room 215 Denver, CO 80203 RECEIVED NOV 1 0 2i"'3 WELD COUNTY Cnrr IISSIONERS NOTICE Consideration of 112c Construction Materials Reclamation Permit Application November 7, 2016 TO: Weld County Commissioners 915 10th St Greeley, CO 80631 RE: Lupton Meadows Gravel Mine, File No. M-2016-076 Please be advised that on November 2, 2016, Bestway Concrete Company, whose address and telephone number are 301 Centennial Drive , Milliken, CO 80543; (970)-587-7277, filed an application to conduct a Surface mining and reclamation operation, at or near Section 13 , Township 2 N, Range 67 W, 6th Principle Meridian, in Weld County. Please be advised that the pes>,ut area may be located in more than one Section, Township, and Range. Affected lands will be reclaimed to support a post -mining land use. The application decision date is scheduled for February 2, 2017.. A copy of the application is available for review at the Weld County Clerk & Recorder's office and at the office of the Division of Reclamation, Mining and Safety. The application, as well as all other permit documents, can be found at http://drmsweblink.state.co.us/ by searching M2016076 in the "Permit No" field. A user guide is available to help first time users of the imaged document system and can be viewed at http://mining. state.co.us/SiteCollectionDocuments/Laserfische%20User%20Guide.pdf. To be considered in the review process, comments or objections on the application must be submitted in writing within twenty (20) days of the date of the last newspaper public notice. You should contact the applicant for the newspaper publication date. The Office will assume you have no comment or objection to the proposed activity if none are received by the end of the public comment period. If you need additional information or have any questions regarding the above -named application, please contact Eric Scott at the Division of Reclamation, Mining and Safety, 1313 Sherman Street, Room 215, Denver, CO 80203, by telephone at 303-866-3567 x 8140, or by email at eric.scott(&state.co.us. M -AP -05A (Jvb1�C, 1,view l l /1(O/I(O GG'•PL-Cry --r P) PC() CER/GH/SM/C 11/ (0 / IG 1313 Sherman St. Room 215 Denver, CO 80203 P (303) 866-3567 F John W. Hickenlooper, Governor I Robert W. Randall, Executive Director I Virginia Brannon, Director 2016-3516 November 7, 2016 Clerk to the Board of Weld County Commissioners 915 Tenth Street, Rm 317 Greeley, CO 80632 RE: Lupton Meadows Gravel Mine Permit #M-2016.076 Dear Clerk to the Board: RECEIVED NOV 0 9 2016 WELD COUNTY COMMISSIONERS As a requirement of the Division of Reclamation Mining and Safety (DRMS), the complete Lupton Meadows Gravel Mine application must be on file at the County Clerk's Office and be available for public viewing. A copy of the complete application on behalf of Bestway Concrete & Aggregates is attached. Please sign below to indicate that you have received the above -mentioned information and return this page to us by email at andy@civilresources.com. As always, thank you for your assistance. Sincerely, Civil Resources, LLC Andy Rodriguez, P.E. Project Engineer Confirmation of Receipt: I have received the above reference documents, and will put it on file for public viewing. 11IG1/tCo ty Clerk to the Board J:IBestway-2131GIobal Assets \DRMS INotices \letter to clerk_signature reqted.doc Date LUPTON MEADOWS GRAVEL MINE DRMS 112 PERMIT SUBMITTAL M-201 6-X)(X 09-6 PREPARED FOR: Bestway Concrete & Aggregates 301 Centennial Drive Milliken, CO 80543 PREPARED BY: Civil Resources, LLC 323 5th Street P.O. Box 680 Frederick, CO 80530 303.833.1416 DATE SUBMITTED TO CLERK: NOVEMBER 1, 2016 CIVIL_ la S7UI2C;t_S, [ I C RECEIVED NOV 0 9 2016 WELD COUNTY COMMISSIONERS STATE OF COLORADO DIVISION OF RECLAMATION, MINING AND SAFETY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 80203 Phone: (303) 866-3567 FAX: (303) 832-8106 CONSTRUCTION MATERIALS REGULAR (112) OPERATION RECLAMATION PERMIT APPLICATION FORM COLORADO DIVISION OF RECLAMATION MINING —&— SAF ETY CHECK ONE: n There is a File Number Already Assigned to this Operation Permit # M - O - b - at, (Please reference the file number currently assigned to this operation) New Application (Rule 1.4.5) Amendment Application (Rule 1.10) Conversion Application (Rule 1.11) Permit # M - - - (provide for Amendments and Conversions of existing permits) The application for a Construction Materials Regular 112 Operation Reclamation Permit contains three major parts: (1) the application form; (2) Exhibits A -S, Addendum 1, any sections of Exhibit 6.5 (Geotechnical Stability Exhibit; and (3) the application fee. When you submit your application, be sure to include one (1) complete signed and notarized ORIGINAL and one (1) copy of the completed application form, two (2) copies of Exhibits A -S, Addendum 1, appropriate sections of 6.5 (Geotechnical Stability Exhibit, and a check for the application fee described under Section (4) below. Exhibits should NOT be bound or in a 3 -ring binder; maps should be folded to 8 1/2" X 11" or 8 1/2" X 14" size. To expedite processing, please provide the information in the format and order described in this form. GENERAL OPERATION INFORMATION Type or print clearly, in the space provided, ALL information requested below. 1. Applicant/operator or company name (name to be used on permit): Bestway 1.1 Type of organization (corporation, partnership, etc.): 2. Operation name (pit, mine or site name): 3. Permitted acreage (new or existing site): 3.1 Change in acreage (+) 3.2 Total acreage in Permit area Lupton Meadows Gravel Mine 4. Fees: 4.1 New Application 4.2 New Quarry Application 4.4 Amendment Fee 4.5 Conversion to 112 operation (set by statute) 5. Primary comoditie(s) to be mined: sand gravel topsoil m 104 permitted acres acres acres $2,696.00 application fee $3,342.00 quarry application $2,229.00 amendment fee $2,696.00 conversion fee general fill 5.1 Incidental commoditie(s) to be mined: 1. lbs/Tons/yr 2. / 3. / lbs/Tons/yr 4. lbs/Tons/vr / lbs/Tons/yr 5. / lbs/Tons/yr 5.2 Anticipated end use of primary commoditie(s) to be mined: used in concrete batching, road base, fill 5.3 Anticipated end use of incidental commoditie(s) to be mined: - 2 - 6. Name of owner of subsurface rights of affected land: Majestic Opportunities c/o Randy Geist If 2 or more owners, "refer to Exhibit O". 7. Name of owner of surface of affected land: Majestic Opportunities c/o Randy Geist 8. Type of mining operation: Surface Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Weld County PRINCIPAL MERIDIAN (check one): 6th (Colorado) 10th (New Mexico) Ute SECTION (write number): S 13 & 18 TOWNSHIP (write number and check direction): T 2171 North RANGE (write number and check direction): R 67 & 66 1 East QUARTER SECTION (check one): El LI D,, SW QUARTER/QUARTER SECTION (check one): © NE U NW SE SW GENERAL DESCRIPTION: (the number of miles and direction from the nearest town and the approximate elevation): Approximately 3 miles north of the City of Fort Lupton, -EL: 4848.0 NGVD 88 1-1 South West 10. Primary Mine Entrance Location (report in either Latitude/Longitude OR UTM): Latitude/Longitude: Example: (N) 39° 44' 12.98" (W) 104° 59' 3.87" Latitude (N): deg 40 min 08 sec 33 .44 (2 decimal places) Longitude (W): deg 104 min 49 sec 57 .77 (2 decimal places) OR Example: (N) 39.73691° (W) -104.98449° Latitude (N) _ Longitude(W) OR Universal Tranverse Mercator (UTM) Example: 201336.3 E NAD27 Zone 13 4398351.2 N (5 decimal places) (5 decimal places) UTM Datum (specify NAD27, NAD83 or WGS 84) WGS 84 Zone 13 Easting Northing -3- Contact's Name: Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: PERMITTING CONTACT Contact's Name: Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: INSPECTION CONTACT Contact's Name: Company Name: Street/P.O. Box: City: State: Telephone Number: Fax Number: 11. Correspondence Information: APPLICANT/OPERATOR (name, address, and phone of name to be used on permit) Mark Johnson Bestway Concrete & Aggregate Title: VP Aggregates 301 Centennial Drive Milliken P.O. Box: CO (970 (970 _ 587 7277 ) _ 587 7287 (if different from applicant/operator above) Andy Rodriguez Civil Resources, LLC Zip Code: 80543 Title: Project Engineer 323 5th Street Frederick P.O. Box: 680 CO (303 ( _ 833 1416x202 Zip Code: 80530 Mark Johnson Bestway Concrete & Aggregate Title: VP Aggregates 301 Centennial Drive Milliken P.O. Box: CO (970 ) _ 587 7277 (970 ) _ 587 7287 CC: STATE OR FEDERAL LANDOWNER (if any) Agency: Street: City: State: Telephone Number: Zip Code: 80543 Zip Code: ( )- CC: STATE OR FEDERAL LANDOWNER (if anv) Agency: Street: City: State: Zip Code: Telephone Number: ( ) -4- 12. Primar future (Post -mining) land use (check one): Cropland(CR) 1-1 Pastureland(PL) Rangeland(RL) Forestry(FR) Residential(RS) Recreation(RC) riDeveloped Water Resources(WR) 13. Primary present land use (check one : J v Cropland(CR) Pastureland(PL) II Rangeland(RL) Forestry(FR) Residential(RS) Recreation(RC) Developed Water Resources(WR) General Agriculture(GA) Wildlife Habitat(WL) Industrial/Commercial(IC) Solid Waste Disposal(WD) General Agriculture(GA) Wildlife Habitat(WL) IndustriaUCommercial(IC) 14. Method of Mining: Briefly explain mining method (e.g. truck/shovel): slurry lined, wet/dry mining 15. On Site Processing: Crushing/Screening 13.1 Briefly explain mining method (e.g. truck/shovel): wet/dry mining with excavator and haul trucks List any designated chemicals or acid -producing materials to be used or stored within permit area: none 16. Description of Amendment or Conversion: If you are amending or converting an existing operation, provide a brief narrative describing the proposed change(s). -8 - Certification: As an authorized representative of the applicant, I hereby certify that the operation described has met the minimum requirements of the following terms and conditions: 1. To the best of my knowledge, all significant, valuable and permanent man-made structure(s) in existence at the time this application is filed, and located within 200 feet of the proposed affected area have been identified in this application (Section 34-32.5-115(4)(e), C.R.S.). 2. No mining operation will be located on lands where such operations are prohibited by law (Section 34-32.5-115(4)(f), C.R.S.; 3. As the applicant/operator, I do not have any extraction/exploration operations in the State of Colorado currently in violation of the provisions of the Colorado Land Reclamation Act for the Extraction of Construction Materials (Section 34-32.5-120, C.R.S.) as determined through a Board finding. 4. I understand that statements in the application are being made under penalty of perjury and that false statements made herein are punishable as a Class 1 misdemeanor pursuant to Section 18-8-503, C.R.S. This form has been approved by the Mined Land Reclamation Board pursuant to section 34-32.5-112,C.R.S., of the Colorado Land Reclamation Act for the Extraction of Construction Materials. Any alteration or modification of this form shall result in voiding any permit issued on the altered or modified form and subject the operator to cease and desist orders and civil penalties for operating without a permit pursuant to section 34-32.5-123, C.R.S. Signed and dated this —,A44\ day of U Li•C.4. 9"+ -- {{,may -e ,-ea Applicant/Operator or Company Name Signed: \A„(Sce \\ ---- Title: U - . State of County of GUP,7G( ) ss. If Corporation Attest (Seal) The foregoing instrument was acknowledged before me this ,7,24/'1- day of �IZ11‘_, by A sirs as //Ce �rc,�rc�crr7�' -VICKI 4 CR Z.ANI NOTARY PUT C ST: �i t. C COLO;IA Y) NOTARY ID 20114024 ILA t tY CQ"m,i$K3'.'V EXPIRES AN0. 21.?0'9 Sign d Co . .rat secretary or Equivalent Town/City/County Clerk Notary Public My Commission expires: �� /,?e? „Iv/9 SIGNATURES MUST BE IN BLUE INK You must post sufficient Notices at the location of the proposed mine site to clearly identify the site as the location of a FT. Lupton Press Publication PUBLIC NOTICE Bestway Concrete & Aggregates; 301 Centennial Drive, Milliken, CO 80543, 970-539-1201; has filed an application to amend their Regular (112) Construction Materials Operation Reclamation Permit under provisions of the Colorado Land Reclamation Act for the Extraction of Construction Materials. The site is located adjacent and west of the South Platte River. The site is within the northeast 1/4, Section 13, Township 2 North, Range 67 West of the 6th Principal Meridian; and also within the northwest 1/4, Section 18, Township 2 North, Range 66 West of the 6th Principal Meridian. The site is generally bounded on the west by an abandoned railroad grade, the north by WCR 22, on the east by the South Platte River, and on the south by the City of Broomfield's Heit Pit. The project is located in Weld County, Colorado. The purpose of this notice is to slurry line the Site, mine it for gravel and reclaim it as a water storage reservoir. The proposed date of commencement is early Spring of 2017, and the proposed date of completion is Winter 2025. The proposed future use of the land is water storage and pasture. Additional information and tentative decision date may be obtained from the Division of Reclamation Mining and Safety, 1313 Sherman Street, Room 215, Denver, Colorado 80203, (303) 866-3567, or at the Weld County Clerk to the Board of County Commissioners, 915 10`h Street, Greeley, CO, 970-336-7215, or the above named applicant. Comments must be in writing and must be received by the Division of Reclamation Mining and Safety by 4:00 p.m. on December 12, 2016 (20th day after the 4`h publication) Please contact Andy Rodriguez with Civil Resources at (303) 833-1416 ex. 202 if you have any questions or comments regarding this application. Scheduled to be published in the Fort Lupton Press Call November 2, November 9, 16, & 23, 2016. proposed mining operation. The following is a sample of the Notice required for Rule 1.6.2(1)(b) that you may wish to use. NOTICE This site is the location of a proposed construction materials operation. (Name of the Applicant/Operator) Bestway whose address and phone number is (Address and Phone Number of the Applicant/Operator) 301 Centennial Drive, Milliken CO , has applied for a Reclamation Permit with the Colorado Mined Land Reclamation Board. Anyone wishing to comment on the application may view the application at the (County Name) Weld County County Clerk and Recorder's Office, (Clerk and Recorder's Office Address) 1402 N. 17th Avenue Greeley, CO 80631 , and should send comments prior to the end of the public comment period to the Division of Reclamation, Mining, and Safety, 1313 Sherman St, Room 215, Denver, Colorado 80203. Certification: I Andy Rodriguez , hereby certify that I posted a sign containing the above notice for the proposed permit area known as the (Name of Operation) Lupton Meadows Gravel Mine on (Date Posted) 10/31/16 10/31/16 SIGNATURE DATE d a prnp1M Ca Ouc l.Uw F+.ryw.ais Y...l.yu.. 4.I W.r C -4.411141440 1C9.1.••••••• rlw14 r.rrw.Vo t 34101044•44.4•4a4 0... 114xn• C4 put. i17i1 Yterl�as.,yTWy T"Pxytly .w... Lima .rne rYlIN IM IMMWfsa'J +.tea rtaw t. 7"'r�7 C•17...ttlslrl.rrs Mlle*. 115 *nsw49 .yours IO ~� 1114. O.• alny CO Nola. cyeyym— � MPM mad M IIr pee* iylw..l ktz low.yr.yy y.,� EXHIBIT A - LEGAL DESCRIPTION This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.1 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: LAND PARCEL DESCTRIPTION PARCEL I: LOTS 1, 2 AND 3, RESUBDIVISION OF LOTS 1, 2 & 3, LUPTON MEADOWS LAND COMPANY MAP OF DIVISION 1, OF SECTION 13, ACCORDING TO THE PLAT RECORDED AUGUST 3, 2000 AT RECEPTION NO. 2784703, COUNTY OF WELD, STATE OF COLORADO PARCEL II: THAT PART OF LOT 1 OF THE NW 1/4 OF SECTION 18, TOWNSHIP 2 NORTH, RANGE 66 WEST OF THE 6TH P.M., COUNTY OF WELD, STATE OF COLORADO, LYING WEST OF THE CENTERLINE OF THE SOUTH PLATTE RIVER, ACCORDING TO DIVISION 1 PLAT BY THE LUPTON MEADOWS LAND COMPANY PARCEL III: THAT PART OF LOTS 2, 3 AND 4 OF THE NW 1/4 OF SECTION 18, TOWNSHIP 2 NORTH, RANGE 66 WEST OF THE 6TH P.M., COUNTY OF WELD, STATE OF COLORADO, LYING WEST OF THE CENTERLINE OF THE SOUTH PLATTE RIVER, ACCORDING TO DIVISION 1 PLAT BY THE LUPTON MEADOWS LAND COMPANY MINING PERMIT BOUNDARY SEE LINE TABLE ON COVER SHEET OF DRMS PLANS (ATTACHED) Bestway Concrete & Aggregates — Lupton Meadows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit A -1 EXHIBIT B - INDEX MAP Please refer to the attached index map. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit B -1 D CIVIL RES'SURCES, LLC BESTWAY CONCRETE, INC. LUPTON MEADOWS GRAVEL MINE DATE: October, 2016 FIGURE: B INDEX MAP EXHIBIT C - PRE -MINING AND MINING PLAN MAPS OF AFFECTED LANDS Please refer to the attached Existing Conditions Map and Mining Plan Map. Bestway Concrete & Aggregates — Lupton Medows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit C -1 LUPTON MEADOWS GRAVEL MINE WELD COUNTY, COLORADO PERMIT BOUNDARY LINE TABLE: 2 O cc w Parcel Line Table N9' 55' 28.87'W 59' 44' 57.34'W { ANDREW R. RODRIGUEZ, PE BESTWAY CONCRETE, INC. DOES HEREBY ACCEPT AND APPROVE THESE PLANS FOR THE DRMS PERMIT. Parcel Line Table PREPARED FOR: PREPARED BY: 00 O kk /k 2 • Co § a ma ,m'sosaoJ.m_- a1 _m J J V1 W IVIL RES'I,UR BESTWAY CONCRETE, INC. 'JNI 'J13UJNOJ AVM1S39 3NIW 1/ V2JJ SMOGVJW NOldfll L7 000 g 2 0 o u $ b t Eg r Cep Vrco / _ , l P - \ gr . / rn I co e 8 CO PLATIE m a&`\\ 6-' 9Z (SSNINV39 JO 5058) 3„01,,L0.00�$ �i ,co 9ac1 T ;ittryEu 5C0661M„51,�Z.8pNa SLL96L ,99ZZ9Z M„Z5,60.00 �i1771 7 -Y7 -7-1t 111 1 13 — rzaVc%'ALNfOJ S 1 WUa -t1 g8 RIVER V0 o 111 z a Rd ,Z9'Zc9 M„0b,L0.00N ZL'SS9 S 113 a N 777171 w U U W STRUCTURE INFO: 0 m io O✓�• X �za� iz 9_ i z 1.1 �z�o Y o� Q� a�a :5 Z� Oq oa coiw�� 45411a_ VOOOW w�a JZOZ5o 2W2 0 a � ❑ ~ U r w Ow w€ NF02 Z-ZY a'WWwo Om SYZ~o NU OJ=LZ0 �a ;U�S m Yz� oate ✓st al~/10 �� rc aw O� JOw KmWWU w a�.i�mZ oSwS �WW wo�N wZF $U Z_Oa �F-z U10Y Ztn o0 QUrao wtiF kin 0o UU 0 FLOODPLAIN INFO: 0 EXISTING VEGETATION: V V EE 90 6 9102/lE/0l'6M+P'S0N00lSX3-M3A001S133HSIsSu!M8J0\slessy IBQ%J\CIZ-AeNselAT EXHIBIT D - MINING PLAN This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.4 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: (a) Description of the method(s) of mining to be employed in each stage of the operation as related to any surface disturbance on affected lands; The proposed permit area includes a significant deposit of sand and gravel located in the alluvium of the South Platte River in Weld County. The site is located north of Weld County Road 20 and is east and west of Weld County Road 25. It encompasses 103 acres +/-. Site Preparation: Initial disturbance of the property will include: clearing the site of existing structures (with exception of the structures to remain), constructing the slurry wall, dewatering the site, and stripping the topsoil and overburden material. Mining: After the slurry wall installation, dewatering trenches will be excavated down to bedrock to dewater the portion of the site located within the slurry wall. Groundwater collected in the dewatering trench will be pumped into a settling pond and ultimately discharged to the South Platte River located on the east end of the property. Once water levels are controlled through the dewatering system, scrapers will strip the topsoil and overburden material from a given phase and stockpile them separately for use during site reclamation. Any excess material not needed for reclamation may be sold or hauled off -site during the life of the mine. The sand and gravel material will be excavated down to bedrock. Each phase will be dry -mined using scrapers, bulldozers, front-end loaders, excavators, or similar equipment. The mining on this site will progress in four phases, ranging in size from 21-23 acres and proceeding from east to the west. The operator will develop and comply with a Stormwater Management Plan and Spill, Prevention, Control and Countermeasures Plan. The operator will notify the Division of Mine Safety and Reclamation in the event of a reportable spill. Processing: All material mined under this proposed application will be transported by conveyor or haul truck to the processing area. Import Material: Bestway Concrete & Aggregates may import material from and export material to other sites. The applicant is aware that in accordance with Rule 3.1.5(9) of the Construction Material Rules and Regulations, if any offsite material is used as backfill, a notarized letter will be submitted to the Division indicating the materials are inert. The applicant Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit D -1 will supply such a letter to the Division if, at the time of Reclamation, the applicant intends to use off -site material as backfill. (b) Earthmoving; Topsoil and overburden will be stripped with scrapers or bulldozers and stockpiled in segregated piles at the edge of the active mine phase. Excavators, front-end loaders, and bulldozers will be used to excavate the material. Conveyor belts or haul trucks will be utilized to transport the raw material from the active mine phase to the processing area. The phases will be mined at a 3H:1V slope. (c) All water diversions and impoundments; and The perimeter of the mined area will be dewatered by digging a trench to bedrock. The water will be pumped into a settling pond and discharged in accordance with a CDPS permit. Wash water for the processing area will be recycled through a series of small ponds within the processing area. The water required to operate the facility will likely be provided by the existing water rights associated with the property. No ditches will be disturbed without prior authorization of the appropriate ditch company. (d) The size of area(s) to be worked at any one time. Excluding the processing area, the maximum area to be worked on at any one time is approximately 30 acres. (e) An approximate timetable to describe the mining operation. The timetable is for the purpose of establishing the relationship between mining and reclamation during the different phases of a mining operation. The Operator anticipates that mining will commence as soon as all permits are in place. The Operator anticipates extracting approximately 500,000 tons of aggregate per year, however, production rate may vary based on market demands. Timetable for Mining and Reclamation Phase 1: Mining will begin in Phase 1 and continue directly into Phase 2. Phase 1 will be mined in approximately 2 years and reclaimed in 1 year. Phase 2: Phase 2 will be mined in approximately 2 years and reclaimed in 1 year. Phase 3: Phase 3 will be mined in approximately 2 years and reclaimed in 1 year. Phase 4: Phase 4 will be mined in approximately 2 years and reclaimed in 1 year. Reclamation will begin immediately after mining is complete. When possible, concurrent reclamation practices will be used to minimize site disturbance and to limit Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit D - 2 material handling to the greatest extent possible. Please refer to the Mining Plan Map in Exhibit C for phase areas to be mined, locations and areas. (0 Use Mining Plan Map in conjunction with narrative to present: (i.) Nature, depth and thickness of the deposit and thickness and type of overburden to be removed Exploratory borings drilled by Meyers LLC (NCG, 2016) primarily along the perimeter of the site, encountered approximately two to four feet of overburden topsoil, silty sands and sandy lean clays overlying approximately 22 top 32 feet of sand and gravel on top of primarily claystone bedrock. Refer to the Stability Analysis (Exhibit S) for locations of the property extents and boring locations. The bedrock depths in the proposed mine areas ranged from approximately 24 feet to 34 feet below the ground surface. (ii) Nature of the stratum immediately beneath the material to be mined in sedimentary deposits The site is located approximately 20 miles east of the foothills of the Colorado Front Range on the western flank of the Denver Structural Basin. The basin is a downwarp of sedimentary strata that tends north-northwest, parallel to the mountain front. In the project area, the sedimentary bed dips gently eastward toward the axis of the basin east of the site. Based on regional geologic mapping (Colton, 1978), the near surface bedrock in the project area is the Paleocene and Upper Cretaceous Denver and Arapahoe Formations. The bedrock is overlain by upper Pleistocene and Holocene (Quarternary age) gravel deposits and eolian (wind blown) overburden soils. The gravel deposits exist primarily within the Broadway Alluvium deposit. The bedrock unit consists mainly of claystone and may contain lenses of siltstone and sandstone. (g) Identify the primary and secondary commodities to be mined/extracted and describe the intended use. The primary commodities are sand, gravel and fill; intended for construction materials. (h) Name and describe the intended use of all expected incidental products to be mined/extracted by the proposed operation. There are no expected incidental products to be mined. (I) Specify if explosives will be used in conjunction with the mining (or reclamation) No explosive material will be used on -site. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit D - 3 as Di -111111111711-/117'71t-11711.141-t111 AREA DETAIL '3NI 11.JA J0N 3NIN SMOCK -r 0: i oa C Cr) 00 AVM1ST9 3AV'dE JNOldni 0 DESCRIPTION a�"'a ¢as m omm E O i V �q " ,� o G z z � t \� // �— — // zig .11 111 11 n1 1t 1 �zw Qa oz�a aFQw 00 wa¢� aQOQZ OQ 00¢Z� _aw OW Qxw wQ OUOw U Z Uo JOZWO a w5w as Uo aw oa ¢ t=om wLi m �aNWO zm w0�2 Ow 5YZw� NU UJIJ-iO m7Yz� a orzQy ¢ ra UU aUIOmN JOO KmOaV LiaJOU wl-"0�Z Oxw y¢1W OaU 3V Z0a U Z-ZN vI z oWZ d0F¢2... ¢UQ w3NjU WJ OF OJ Saw ran VaK �maxa m O OV om � O ¢ J O5 aU Q V 0 Q i�.I 7/ � �\ V / vp E� 6 ZL 9S9 Zt5G9 \ 0 z LAJ In 0 SOILS MAP LEGEND z ALTVAN LOAM, 0 TO 1 PERCENT SLOPES DACONO CLAY LOAM, 0 TO 1 PERCENT SLOPES OTERO SANDY LOAM, 1 TO 3 PERCENT SLOPES VONA LOAMY SAND, 3 TO 5 PERCENT SLOPES MAP UNIT SYMBOL la a z LL; L.JZ 0 0 F r 1110!!! Z Z Z Z a W J 02 Z � ©o o II I I b 8 CIA 0 lv LOW OF MINING AREAS CROSS SECTION TYPICAL - TOPSOIL STOCKRI $ 2 e 8 WdZO:£0:I.9lO22I4' +P'SOIL-ddV-SW2141S133HSIs6uvneimslassyIegoIJ1£lZ-Aen+1sa8Gf EXHIBIT E — RECLAMATION PLAN This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.5 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: The proposed mining and reclamation plan focuses on minimizing the ecological impacts of mining, minimizing the length of time of impact, and maximizing long-term benefits. (a) A description of the type(s) of reclamation the Operator proposes to achieve in the reclamation of the affected land, why each was chosen, the amount of acreage accorded to each, and a general discussion of methods of reclamation as related to the mechanics of earthmoving; The mined area will be reclaimed to a lined water storage reservoir due to a need within the state for water storage facilities. Refer to Exhibit F for the acreages and additional details. Earthmoving The topsoil will be replaced by a scraper and generally graded with a blade. All grading will be done in a manner that controls erosion and siltation of the affected lands, to protect areas outside the affected land from slides and other damage. In addition, all backfilling and grading will be completed as soon as feasible after the mining process. All disturbed areas will be regraded and smoothed to a finished grade that is suitable for revegetation or the final land use. As noted previously, the area will be reclaimed as mining proceeds. Finish grading, topsoil placement and seeding will occur throughout the life of the mine. Once the resource is completely removed, final grading and vegetation of the slopes will be completed. The empty vessel will be available for water storage. A typical cross-section of the shoreline is included on the Reclamation Plan Map. (b) A comparison of the proposed post -mining land use to other land uses in the vicinity and to adopted state and local land use plans and programs. The water storage reservoirs will be compatible with the other land uses in the vicinity, which includes farmland, industrial land, and rural residential. (c) A description of how the Reclamation Plan will be implemented to meet each applicable requirement of Section 3.1. The Operator will carry reclamation to completion with reasonable diligence. Each phase of reclamation will be completed within one to two years from completion of mining, but not more than five years from the date the Operator informs the Board or Office that such phase has commenced. Section 3.1.5 Reclamation Measures Material Handling Grading will be performed to help control erosion and siltation of the affected lands through phased mining, implementing good operation techniques to handle material as little as possible, and vegetation of stockpiles remaining in place for more than one growing season. Although the use of erosion protection devices is not anticipated, if deemed necessary by the Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit E -1 operator at the time of excavation, silt fence and haybale dams will be installed to prevent erosion. Backfilling and grading will be completed as soon as feasible after the mining process is complete for each phase. Maximum slopes and slope combinations will be compatible with the configuration of surrounding conditions and selected land use. Mining will occur at a slope that is stable. Reclaimed slopes in the water storage reservoir will not be steeper than a 3:1 ratio. The upland area will be reclaimed to grades consistent with pre -mining elevations. The operator will backfill using fill material generated on -site, or imported inert fill generated outside the permit area. If any inert off -site material is used as backfill, a notarized letter will be submitted to the Division as required by Section 3.1.5(9) of the MLRB Construction Material Rules and Regulations. It is not anticipated that mining will uncover any refuse or acid-forming or toxic producing materials, however if any such materials are encountered the operator will take precaution to handle the materials in a manner that will control unsightliness and protect the drainage system. Drill or auger holes that are part of the mining operation shall be plugged with non- combustible material, which shall prevent harmful or polluting drainage. Any test pits, soils boring holes, or monitoring wells not located within the mine excavation limits will be plugged as soon as it can be confirmed that they are no longer needed for the operation. Mined material to be disposed of within the affected area will be handled in such a manner so as to prevent any unauthorized release of pollutants to the surface drainage system. No unauthorized release of pollutants to groundwater shall occur from any materials mined, handled or disposed of within the permit area. Section 3.1.6 Water -General Requirements The Operator will comply with applicable Colorado water laws governing injury to existing water rights and with applicable state and federal water quality and dredge and fill laws and regulations. The operator will develop and comply with a stormwater management plan and will use best management practices (BMPs) to ensure groundwater and surface water are protected to the greatest possible extent. BMPs include schedules of activities, prohibitions of practices, maintenance procedures and other management practices to prevent or reduce the pollution in runoff from the site. Section 3.1.7 Groundwater - Specific Requirements The Operator will comply with the applicable standards and conditions for classified and unclassified groundwater. Section 3.1.8 Wildlife: The mining and reclamation plans have been designed to account for the safety and protection of wildlife on the mine site. The Operator will mine the site in phases and use concurrent reclamation methods to minimize the impact on wildlife. As described in the Two Dot Consulting site assessment, Exhibit H of this application, the proposed reclamation plan may improve wildlife habitat. The proposed seed mix and Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit E - 2 plantings will create improved cover, foraging, roosting, and nesting areas for wildlife. The water area within the reservoir will serve as habitat for waterfowl and other bird species and the fringes of the reservoir will be used by mammal, bird, reptile and amphibian species. Control and/or removal of noxious and weedy species during the project and the replacement of desirable graminoid, forb, shrub and tree species during reclamation will result in enhancement of wildlife habitat on the project site. Section 3.1.9 Topsoiling Topsoil shall be removed and segregated from other spoil. Topsoil stockpiles shall be stored in places and configurations to minimize erosion and located in areas where disturbance by ongoing mining operations will be minimized. Once stockpiled, topsoil shall be rehandled as little as possible. Stockpiles that will remain in place for more than one growing season will receive vegetative cover, as outlined on the Reclamation Plan Map, as soon as possible to minimize erosion. Section 3.1.10 Revegetation: In those areas where revegetation is part of the reclamation plan, the land shall be revegetated in a manner that establishes a diverse, effective, and long-lasting vegetative cover that is capable of self -regeneration without continued dependence on irrigation or fertilizer and is at least equal in extent of cover to the natural vegetation of the surrounding area. The proposed seed -mix and plantings for reclamation are outlined on the Reclamation Plan included in Exhibit F of this application. Section 3.1.11 Buildings and Structures Please refer to the enclosed Reclamation Plan included in Exhibit F. Section 3.1.12 Signs and Markers The Operator will post appropriate signage at the entrance to the mine site. The permit area will be marked by existing fencing, or proximity to existing County roads. (d) Plans for topsoil segregation, preservation and replacement; for stabilization, compaction and grading of spoil; and for revegetation. Topsoil will be removed and segregated from other spoil. Topsoil not needed for reclamation may be sold or removed from the site. For reclamation, topsoil will be replaced by a scraper and generally graded with a blade. Grading shall be done in a manner that controls erosion and siltation of the affected land and protects areas outside the affected land from slides and other damage. In addition, backfilling and grading shall be completed as soon as feasible after the mining process. Final grading will create a final topography that is appropriate for the final land use. For example, final grading of the reservoir above the high water line will replace material at a maximum 3:1 slope to meet the grade at the top of the banks. Topsoil will be uniformly placed and spread on areas disturbed by the mining, above the anticipated high water line. The minimum thickness shall be 6 inches above the surrounding finished grade, consistent with existing topsoil depths on -site. The topsoil shall be keyed to the underlying and surrounding material by the use of harrows, rollers or other equipment suitable for the purpose. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit E - 3 In those areas where revegetation is part of the reclamation plan, the Operator will revegetate the land in such a manner so as to establish a diverse, effective, and long- lasting vegetative cover that is capable of self -regeneration without continued dependence on irrigation or fertilizer and is at least equal in extent of cover to the natural vegetation of the surrounding area. Seed will be drilled and mulched. The revegetation seeding and plant list on the Reclamation Plan Map contains the preferred species of grasses, shrubs and trees to be planted. Seeding will take place once final grading and replacement of topsoil have been completed for each phase. Timing of seeding will be consistent with standard horticultural practice for dryland applications - generally between late September and the middle of April to ensure there is adequate moisture for germination. (e) A plan or schedule indicating how and when reclamation will be implemented. Include: i. An estimate of the periods of time which will be required for the various stages or phases of reclamation. Please refer to the Timetable for Mining and Reclamation in Section (e) of Exhibit D. ii. A description of the size and location of each area to be reclaimed during each phase. Please refer to the Reclamation Plan Map (Exhibit F). iii. Outlining the sequence in which each stage or phase of reclamation will be carried out. Please refer to the Timetable for Mining and Reclamation in Section (e) of Exhibit D. (0 A description of: i. Final grading - maximum anticipated slope gradient or expected ranges thereof; The finished slopes of the reservoir will be 3 horizontal to 1 vertical. ii. Seeding - types, mixtures, quantities and time of application; Please refer to the Reclamation Plan Map for the list of plant materials and seeds to be utilized. The operator will seed during the appropriate season to ensure adequate moisture for germination and implement weed controls to allow the grasses to successfully establish. Additional plantings may be installed once the reservoirs are full of water and the grasses are established. iii. Fertilization -types, mixtures, quantities, and time of application; The type and application rate of fertilizer shall be determined based on a soil test at the time of final reclamation. iv. Revegetation - types of trees, shrubs, etc.; and Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit E - 4 Please refer to the Reclamation and Landscape Plan Maps for the types, quantities and location of trees and shrubs to be planted. v. Topsoiling — specify anticipated minimum depth or range of depths for those areas where topsoil will be replaced. Topsoil will be uniformly placed and spread on all areas disturbed by the mining above the anticipated high water line. The minimum thickness shall be 6 inches above the surrounding finished grade. WEED MANAGEMENT PLAN Bestway Concrete & Aggregates has a full-time weed manager on staff. This person is responsible for monitoring and controlling noxious weeds as they appear. Bestway Concrete typically prefers to control weeds mechanically, by mowing and/or discing. If necessary, weeds will be killed with a contact herbicide. Bestway Concrete has all of the necessary equipment in house to perform these tasks. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit E - 5 EXHIBIT F- RECLAMATION PLAN MAP Please refer to the attached Reclamation Plan Map. Bestway Concrete & Aggregates — Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit F -1 L Wd bl ZO l 9102/l/l l'6mVSJId-ddV-SW2141S133HSIs6ulmeiplslessV IegoIJ\ElZ-Aemis9BGf EXHIBIT G - WATER INFORMATION This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.7 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: (a) Locate on the map (Exhibit C) tributary water courses, wells, springs, stock water ponds, reservoirs and ditches The South Platte River, Decreed Pond No. 1, Pond No. 2, Pond No. 3 (99CW150), Lupton Bottom Ditch, water well permit no. 55792-F, Well No. 1 permit no. 17179 (west), Well No. 2 permit no. 17179 (east), Little Dry Creek, and numerous monitoring well on the site. Please refer to Exhibit C for locations of water courses in close proximity to the site, including wells, springs, stock water ponds, reservoirs and ditches. (b) Identify all known aquifers The Site is underlain by the South Platte alluvial aquifer. (c) Show how water from dewatering operations or runoff from disturbed areas, piled material and operating surfaces will be managed to protect against pollution of either surface or groundwater both during and after the operation. Please refer to the Mining Plan Map in Exhibit C of this application. Mine areas will drain internally. Uncontrolled releases of surface water in disturbed areas will not occur. Stormwater collected in the active mine area will be managed through the dewatering system. (d) Estimate project water requirements including flow rates and annual volumes for the development, mining and reclamation phases of the project. Projected Use And Consumption: Annual evaporative depletions will be the evaporation from up to 5000 feet of 4 -foot wide de -watering trench, located inside of the slurry wall. The total area of exposed water is 0.5 acres. The gross annual evaporation at the Fort Lupton Gravel Mine aggregate mine is 42 inches according to NOAA Technical Report NWS 33, Evaporation Atlas for the Contiguous 48 United States. Monthly evaporative losses are determined using percentages specified by the State Engineer's Office for locations below 6,300 feet. The nearest weather station is in Ft. Lupton/Brighton where the average annual precipitation is 12.99. Effective precipitation, that part of historical precipitation which was consumed by native vegetation on land to be covered by water surface, is conservatively estimated to be 70 percent of the total precipitation. The annual average effective precipitation at the property is estimated to be 9.09 inches. When subtracting the effective precipitation from the gross evaporation yields, the net annual evaporation is 32.13 inches, or 2.68 acre-feet per acre. The annual amount of evaporation from open water surfaces is 1.34 acre-feet. Mining Production & Operations: Bestway Concrete & Aggregates expects to extract a maximum of 500,000 tons annually of aggregate material from the site. The water retained in the 500,000 tons will be replaced pursuant to the Substitute Water Supply Plan (SWSP). Bestway Concrete & Aggregates — Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit G -1 The total annual amount of water retained in the gravel product from mining activities totals 14.71 acre-feet. In addition, an estimated 1.93 acre-feet of water per year will be used for dust control based (approximately) on 3,500 gallons per day for 20 days per month for 9 months. Annually the total evaporative and operational losses from mining activities (open water surface evaporation, water retained in the aggregate product, dust suppression) totals 17.98 acre-feet of depletion which must be augmented. All depletions were lagged to the South Platte River using the lagging factors approved by the State Engineer pursuant to on -going Substitute Water Supply (SWSP) approvals. (e) Indicate the projected amounts of the water sources to supply project water requirements Replacement Water: The source of replacement water for depletions will be long term lease between Bestway Concrete & Aggregates and Central Colorado Water Conservancy District and the use of native water rights used on the property (Lupton Bottom Ditch Shares) owned by Majestic Opportunities, LLC. The State Engineer must approve a SWSP every year. These approvals require that the applicant provide a detailed explanation of the mining operations, a quantification of all mining activities and subsequent depletions and all legally available replacement sources. (t) Affirmatively state that the Applicant has acquired or applied for a National Pollutant Discharge Elimination System permit from the Water Quality Control Division The Operator will apply for a National Pollutant Discharge Elimination System (NPDES) permit from the Water Quality Control Division of the Colorado Department of Public Health and Environment prior to discharging water from the site. Bestway Concrete & Aggregates — Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit G - 2 EXHIBIT H - WILDLIFE INFORMATION The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.8 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: (1) The Operator/Applicant shall include in this Exhibit, a description of the game and non game resources on and in the vicinity of the application area, including; a) A description of the significant wildlife resources on the affected land; This information is provided in the attached Exhibit H Wildlife Information, prepared by Two Dot Consulting environmental firm, located at 2810 North Speer Blvd, Denver, Colorado 80211, based on a site investigation conducted on August 18, 2016. b) Seasonal use of the area; This information is provided in the attached Exhibit H Wildlife Information, prepared by Two Dot Consulting environmental firm, located at 2810 North Speer Blvd, Denver, Colorado 80211, based on a site investigation conducted on August 18, 2016. c) Threatened or endangered species; The attached Two Dot Consulting Exhibit H Wildlife Information included an evaluation for threatened and endangered species. Their conclusions are documented in the attached report. d) General effect during and after the proposed operation on the existing wildlife of the area; This information is provided in the attached Exhibit H Wildlife Information, prepared by Two Dot Consulting environmental firm, located at 2810 North Speer Blvd, Denver, Colorado 80211, based on a site investigation conducted on August 18, 2016. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit H -1 Wetland Delineation & Sensitive Species Report for the Global Assets Mine Property, Weld County, Colorado Prepared for Civil Resources, LLC Prepared by Two Dot Consulting August 2016 Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado TABLE OF CONTENTS Page 1.0 INTRODUCTION 4 2.0 PROJECT DESCRIPTION 4 3.0 METHODS 7 3.1 Delineation of Waters of the U.S. 7 3.1.1 Desktop Analysis 7 3.1.2 Field Survey 7 3.1.3 Wetlands 7 3,1,4 Vegetation 8 3.1.5 Soils 8 3.1.6 Hydrology 8 3.1,7 Streams/Irrigation Ditches 8 3.2 Protected Species Survey 9 3.2.1 Desktop Analysis 9 3.2.2 Field Survey 9 3.3 Field Mapping 9 3.4 Photographs 9 4.0 RESULTS 9 4.1.1 Elevation and Topography 10 4,1,2 Vegetation Communities 10 4.2 Waterbodies 10 4.3 Wetlands 12 4.4 Permitting Strategy —Jurisdictional Status 12 4.5 Protected Species 13 4.5.1 Weld County Threatened and Endangered Species 13 4.5.2 Species Evaluation 14 4.5.3 Preble's Meadow Jumping Mouse 14 4.5.4 Colorado Butterfly Plant 15 4.5.5 Ute Ladies' -tresses orchid 15 4.5.6 MBTA and BGEPA 16 4.6 Qualitative Review of West and East Portions of Project Area 18 5.0 SUMMARY 18 LIST OF TABLES Tables P TABLE 1. WATERBODIES WITHIN MINING AREA 10 TABLE 2. FEDERALLY LISTED SPECIES FOR WELD COUNTY, COLORADO 13 LIST OF APPENDICES Appendix A Site Photographs B Wetland Determination Data Forms ii 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado This page intentionally left blank. iii 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado 1.0 INTRODUCTION Civil Resources, LLC (CRC) requested that 2DOT Consulting (2DOT) delineate wetlands and other waters of the U.S. and identify the presence of protected species or their habitats at the proposed Global Assets Gravel Mine (Project Area), located in Weld County, Colorado. The delineation includes the identification and recording of physical features that may be considered waters of the U.S. as defined by the U.S. Army Corps of Engineers (USACE). Waters of the U.S. include most rivers, creeks, streams, ditches, lakes, and their associated special aquatic sites. Special aquatic sites include sanctuaries, refuges, wetlands, mud flats, vegetated shallows, and riffle and pool complexes. 2DOT's evaluation of sensitive species and their habitats within the Project Area includes species that would be protected pursuant to the Endangered Species Act (ESA), Bald and Golden Eagle Protection Act (BGEPA), and Migratory Bird Treaty Act (MBTA). This evaluation consisted of a desktop review and field survey of the project area. 2.0 PROJECT DESCRIPTION The Project Area is located approximately 0.8 mile west of State Highway 85, approximately 3.5 miles north of Fort Lupton and 7.5 miles east of Interstate 25 (See Figure 1 — Location Map). The east edge of the project area is located at the South Platte River and the west edge at the embankment constructed for the Denver Laramie & Northwestern Railway (currently Great Western Railway — abandoned). The northern edge of the Project Area is approximately defined as the access road for the property and depicted as Weld County Road (WCR) 22 on current maps. The southern edge of the Project Area incorporates a farm road on the west side of WCR 25 and an access road serving two Kerr McGee oil and gas wells (within Project Area) and a winery (off site). Bestway Concrete & Aggregate is proposing to perform gravel mining operations within the central portion of the Project Area (See Figure 2 — Site Plan), hereinafter referred to as the Mining Area. The Mining Area would be subject to open pit gravel mining operations throughout. For the purposes of this reporting, it is assumed that all features within the Mining Area would be subject to impact or loss if the proposed mining operations were implemented. Neither the cottonwood riparian forest on the east end of the Project Area or the wetland/stream complex at the west end of the Project Area (see Figure 2) were subject to a delineation of waters of the U.S. or sensitive species surveys, but instead subject only to qualitative evaluation. No disturbances to these areas are proposed as part of the current project planning, and so no detailed delineation or protected species survey was requested. 4 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado a roc 21 ` 28' ._.-27 9 1 Zr. STATEH GHWAA 11 12 CpNda'.ROAD ` CO tNN r1 OAD 25 ROAD, 3.5 dY ROAO 2 PREED LEGEND - Ditches Proposed Mining Area Qualitative Survey Area Section Weld County Road ROW Projection: Nad83 UT A1 13N Date: 8/21,2018 Drafted Bysu Reviewed By. d70UMTY ROA D 16 1� cOUNTY OAD-2 32: a - _cOi.l fl Y..ROAD 3,11. TYr ROAD 29.5 ()Dot Consulting SOURCES : Project Features, 2 Dot 2010 and Anadarko 2018: Project Location Figure 1 Figure 1. Location Map 5 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado 112 • LEGEND 11 Proposed Mining Area Qualitative Survey Area Section Weld County Road ROW rt OWIEOCR: Projectbn• Nad83 UTM 13N Date: 8123/2018 Drafted ByRDB Re 'eared By Q • EEr3ittilE ;ojfagi,les,tAJ l+a?, s'Aistriopo., and iiu •?} PREP/MW e, ®Dot Consulting SOURCES Project Features. 2Dot 2018 and Anadarko 2018. 0 425 850 Feet Site Plan Figure 2 Figure 2. Site Plan 6 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado 3.0 METHODS The methods described herein were implemented in the pre -fieldwork planning, the field survey, the reporting of the results in Section 4.0, and the production of all maps. 2DOT biologist Greg Everett conducted the field investigations on August 19, 2016. 3.1 Delineation of Waters of the U.S. 3.1.1 Desktop Analysis Prior to the site investigation, 2DOT conducted a desktop analysis to review baseline data for the project area, including U.S. Geological Survey (USGS) topographic quadrangle maps, National Wetlands Inventory (NWI) data, Colorado Parks and Wildlife habitat data, and recent aerial imagery provided on Google Earth. 3.1.2 Field Survey The field survey was performed by a biologist experienced in wetland delineation, identification of locally common native and non-native wetland and upland plant species, and experienced in the identification of ordinary high water marks, which define the lateral extent of waters of the U.S. in non -wetland features. The biologist surveyed the Mining Area by both inspecting features identified during the desktop analysis and by walking transects across the western half of the Mining Area, which is lightly to heavily forested with nursery trees that have become naturalized. The transects were walked in a north -south orientation approximately 200 feet apart, which was sufficient to observe variations in vegetation and presence of surface waters. While the ditches present within the agricultural fields were inspected, the active crops were not investigated unless abnormalities in crop growth suggested wetland habitat. Features were recorded using a Garmin GPSMap 64TM (GPS unit). 3.1.3 Wetlands 2DOT followed routine delineation methods described in the U.S. Army Corps of Engineers Wetlands Delineation Manual (USACE 1987), and in the Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region (Version 2.0) (USACE 2010), hereinafter referred to as the Regional Supplement, to evaluate the presence/absence of wetlands in the field. Wetlands are characterized by a predominance of hydrophytic vegetation, presence of hydric soils, and presence of wetland hydrology. While surveying the Mining Area, the investigator scanned the area in search of visual evidence of changes in vegetation composition consistent with prolonged inundation or saturation, and changes in surface features suggesting wetland hydrology. If any of these circumstances were present, the investigator collected data necessary to complete a Wetland Determination Data Form, providing documentation of the presence or absence of wetlands. Determination of wetland habitat type, if present, was based on the classification system developed by Cowardin et al. (1979). If observed, 2DOT recorded wetland boundaries, at the upland/wetland interface, on GPS units with vertices recorded every 20 to 50 feet, depending on the shape of the wetland. 7 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado 3.1.4 Vegetation The investigator determined the predominance of hydrophytic vegetation for each wetland plot in the field by estimating the percent cover of the species present and assigning the appropriate wetland indicator status, as listed in the National Wetland Plant List (Lichvar et al. 2014). 2DOT differentiated hydrophytic and non-hydrophytic (or upland) plant species by their respective indicator status, including facultative (FAC), facultative wetland (FACW), obligate (OBL), facultative upland (FACU), and upland (UPL). 2DOT determined plant communities with greater than 50% dominant hydrophytes (FAC or wetter) to meet the USACE criteria of a hydrophytic community. 3.1.5 Soils The investigator identified hydric soils according to criteria listed in the Regional Supplement and Field Indicators of Hydric Soils in the United States: Field Indicators of Hydric Soils, Version 7.0 (U.S. Department of Agriculture 2010). The investigator excavated soil pits to a depth of up to 20 inches, and described the soil profile by horizon. Each horizon was assessed for soil color; thickness; the color, abundance, and contrast of redoximorphic features; soil texture; and comparison to mapped soils. The investigator used a Munsell Soil Color Chart to determine the color of the soil matrix and redoximorphic features (Munsell Color 2009) and studied the soil profile for hydric soil indicators listed in the Regional Supplement. If the soil profile displayed one or more hydric soil indicators or if other evidence indicated that the soil has been saturated for greater than 10 -percent of the growing season, a positive hydric soil determination was made. 3.1.6 Hydrology The investigator determined wetland hydrology in the field by considering frequency and duration of inundation, visual observation of saturation in the upper 12 inches of the soil profile, and the presence of other primary wetland hydrology indicators, such as oxidized root channels, water -stained leaves, water marks, sediment deposits, or algal matting. Secondary indicators used to determine wetland hydrology included surface soil cracks, drift deposits, drainage patterns, saturation signatures on aerial photographs, or the FAC-Neutral test. If the area displayed one or more primary hydrology indicators or two or more secondary hydrology indicators, a positive hydrology determination was made. 3.1.7 Streams/Irrigation Ditches The investigator identified the presence/absence of lotic systems (e.g., creeks, rivers, human - made ditches) in the field pursuant to guidance provided in the USACE Regulatory Guidance Letter 05-05 regarding Ordinary High Water Mark (OHWM) identification (USACE 2005). An OHWM is a line on a shore established by fluctuations of water and indicated by physical characteristics such as a clear, natural line impressed on the bank; shelving; changes in the character of the soil; destruction of terrestrial vegetation; the presence of litter and debris; or other appropriate means that consider the characteristics of the surrounding areas. The OHWM is the defining element for identifying the lateral limits of non -wetland waters. Federal jurisdiction over a non -wetland water of the U.S. typically extends to the OHWM. 8 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado 3.2 Protected Species Survey 3.2.1 Desktop Analysis 2DOT conducted a desktop review for federally -listed species and their critical habitats, if designated. Federally -listed species with potential to occur within the Project Area or for proposed project activities to affect them were identified using a U.S. Fish and Wildlife Service (USFWS) Information, Planning and Conservation System (IPaC) search which generated an IPaC Trust Resources Report (USFWS 2016). The IPaC search identified protected and sensitive plant and animal species with potential to occur in the Project Area. The desktop analysis also included review of the National Wetlands Inventory database for wetlands that might support the federally listed Utes ladies' tresses orchid (Spiranthes diluvialis) or Colorado butterfly plant (Oenothera coloradensis). Spatial data providing previously mapped sensitive species habitat and nesting locations was provided by Colorado Parks and Wildlife (CPW 2016) 3.2.2 Field Survey The field survey for sensitive species or their habitats was performed in combination with the wetland delineation (see section 3.1.2 above). Habitats that had potential to support listed species and trees with potential to support nesting raptors were a focus of the survey effort. 2DOT did not conduct species -specific surveys for any ESA -listed or MBTA-protected species during the site investigation, although signs of such species (e.g., old nests) and ESA species' habitats would be recorded if present. Trees within 0.5 mile of the survey corridor with the potential to support raptor nests were inspected and nest locations were recorded on a field maps, if observed from adjacent county roads. Because the site investigation was performed outside of the raptor nesting season, access to adjacent properties was not available, and the summer tree foliage makes nest observation very difficult, identification of new nests was considered unlikely. 3.3 Field Mapping 2DOT recorded the spatial extent of features in the field with GPS units with approximate 3 - meter accuracy by recording coordinates of vertices along the perimeter of each wetland and other potential waters of the U.S. 2DOT processed field data with ArcMap 10.2 software. 3.4 Photographs 2DOT took photographs at all wetlands and ditches delineated in the field and at locations of potential sensitive species habitat. 2DOT recorded photograph numbers generated by digital cameras into field notebook in association with descriptions of each feature to ensure that each photograph was correctly associated with the data point. 4.0 RESULTS The Project Area is characterized by an abandoned tree nursery, cropland, an active sand blasting operation, an active plant nursery, wetlands, ponds, and riparian forest. 9 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado 4.1.1 Elevation and Topography According to U.S. Geological Survey topographic quadrangle maps and Google Earth, elevations in the project area range from 4,839 to 4,849 feet above mean sea level. The topography within the Project Area is relatively flat, with the exception being the west banks of the South Platte River, which are steeply incised. 4.1.2 Vegetation Communities Vegetative communities within the survey corridor are limited to woody and herbaceous upland communities, man-made ditches, palustrine emergent wetlands, riparian forest, and croplands. 4.2 Waterbodies Three ditches, all earthen, were identified within the Mining Area. 2DOT recorded the general characteristics and OHWMs of each ditch and summarized them in Table 1. The third ditch is not referenced in Table 1 as it was determined to not support an OHWM. Descriptions of each ditch are provided below. The ditches are depicted in Figure 3. Table 1. Waterbodies within Mining Area Feature ID Feature Type OHWM Width (Feet) Acreage within Mining Area Ditch 01 Lupton Meadows Ditch 6 0.25 Ditch 02 Earthen ditch 1.5 0.03 Total 0.29 Ditch 01, known as the Lupton Meadows Ditch, supports an approximate six-foot wide OHWM along its 1,830 foot run south to north across the central portion of the Mining Area. This ditch enters the Mining Area via a 4 -foot diameter corrugated metal pipe passing beneath the farm road at the southern edge of the Mining Area. At the north end of the Mining Area it exits via a 2 -foot polyvinyl chloride (PVC) pipe. The ditch's OHWM is cut into the banks at approximately two to three feet above the bottom of the ditch. The narrowleaf cattail (Typha angustifolia; OBL) and the curlytop knotweed (Polygonum lapathifolium; OBL) were found within the OHWM in several locations; however, the shelving and clear line impressed in the bank remained clear indicators of an OHWM throughout the extent of this ditch's run across the Mining Area. This feature is not mapped by the NWI. Photographs are provided in Appendix A. 10 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado DITCH 02 WT03 WTO4 _ .J =71J, .J•� 1 .,.,��_ _ = ?_r i.ji s :•., JfJyi1:�., -'_:L-;Jr_ LEGEND o Wetland Determination Pits Ditches ® Proposed Mining Area Qualitative Survey Area Section Weld County Road ROW !REAMED FOR Projection: Nad83 UT1A 13N Date: 8/212016 Drafted ByRD6 Reviewed By. PREP, RED sv. 2Q Dot Consulting SOURCES Project Features. 2 Dot 2018 and Anadarko 2016; 0 250 Delineation Map Figure 3 Figure 3. Delineation Map 11 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado Ditch 02 is an earthen ditch with a 1 to 2 -foot wide OHWM. Ditch 02 runs parallel to Ditch 01, approximately 15 feet to its west. This ditch enters the Mining Area via a 2 -foot diameter corrugated metal pipe passing beneath the farm road at the southern edge of the Mining Area. No exit culvert was identified at the north end, as the ditch became increasingly undifferentiated for the surrounding uplands and covered by dense grasses. This feature is not mapped by the NWI. Photographs are provided in Appendix A. A third ditch, running around the circumference of the field to the east of the Lupton Meadows Ditch had been recently excavated did not support an OHWM. Photographs provided in Appendix A depict this ditch and demonstrate the lack of an OHWM. 4.3 Wetlands One wetland was located within the Mining Area. The one to two feet of bank immediately above the OHWM of the Lupton Meadows Ditch supports wetland. The total wetland area is estimated at 0.13 acre (approximately 1.5 feet of wetland along both banks along the entire 1,830 feet). Immediately above the ditch's OHWM, either bank supports dense growth of reed canarygrass (Phalaris arundinacea; FACW), giant ragweed (Ambrosia trifida; FAC), curlytop knotweed, stinging nettle (Urtica dioica; FACW), prairie cordgrass (Spartina pectinata; FACW), rabbitsfoot grass (Polypogon monspeliensis; FACW), and narrowleaf cattail. These wetland species were located within one to three vertical feet above the OHWM and 1 to 2 feet lateral to the OHWM. Wetland data form 06 is provided in Appendix B as documentation of the vegetation composition and soil description. Two other locations were suspected of supporting wetlands; however, excavation of soil pits revealed that hydric soils had not developed. One location is within the naturalized nursery trees to the west of the Lupton Meadows Ditch. Approximately halfway across the Mining Area, Ditch 02 has a small (less than 12 inches) breach allowing water to drain into the field to the west. This breached ditch supported surface water as far as 300 feet away from the ditch, at an average width of 15 feet; however, soil pit excavations indicated that no development of hydric soils has occurred. This area is characterized by plains cottonwoods (Populus deltoides; FAC), with an understory of reed canarygrass and thickspike wheatgrass (Elymus lanceolatus spp. lanceolatus; UPL). The property manager indicated that this field is only intermittently flooded, which may account for the lack of hydric soil development. A second area was identified as potential wetland near the northwest corner of the Mining Area. Wetland data form 05 (Appendix B) describes the findings at this location. This site supports a dense stand of coyote willow (Salix exigua; FACW), but very well drained soils that exhibited no signs of hydric soil development. This feature is likely subirrigated by surface runoff from the adjacent parking lot, which is constructed with sand and gravel. 4.4 Permitting Strategy — Jurisdictional Status Ditch 01, the Lupton Meadows Ditch, may be considered to be jurisdictional under current USACE guidelines. Because this ditch supports a "relatively permanent flow" and drains into 12 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado downstream waters of the U.S. (i.e., the South Platte River), the USACE may consider this ditch to support jurisdictional waters, thereby subjecting it to the permitting authority of Section 404 of the Clean Water Act (USACE 2007). Ditch 02, would likely not be considered jurisdictional as its connection to downstream waters appears non-existent. The USACE reserves the right to evaluate the jurisdictional status of ditches on a case -by -case basis and any determination of jurisdictional status of ditches is only valid if performed by USACE staff. 4.5 Protected Species 4.5.1 Weld County Threatened and Endangered Species Determination of the listed species that are evaluated in this report was based on the list of federally listed species for Weld County, Colorado, provided in an IPaC Trust Resources Report (USFWS 2016). In total, nine species are listed for the project area (Table 1). Table 2. Federally Listed Species for Weld County, Colorado Species Scientific Name Federal Status Preble's meadow jumping mouse Zapus hudsonius preblei Threatened Ute ladies' tresses orchid Spiranthes diluvialis Threatened Colorado butterfly plant Oenothera coloradensis Threatened Whooping crane Grus Americana Endangered Piping plover Charadrius melodus Threatened Least tern Sterna antillarum Endangered Pallid sturgeon Scaphirhynchus albus Endangered Western prairie fringed orchid Platanthera praeclara Threatened Mexican spotted owl Strix occidentalis lucida Threatened Based on the results of the desktop review, three federally threatened species are known or suspected of being within the vicinity of the project area: Preble's meadow jumping mouse (Zapus hudsonius preblei), Ute ladies' -tresses orchid (Spiranthes diluvialis), and Colorado butterfly plant (Oenothera coloradensis). An additional five species, whooping crane (Grus americana), piping plover (Charadrius melodus), least tern (Sterna antillarum), western prairie fringed orchid (Platanthera praeclara), and pallid sturgeon (Scaphirhynchus albus), collectively referred to as "Platte River Species", are listed for Weld County due to concerns over water depletions that may impact downstream populations and critical habitat within the Platte River drainage. The South Platte River, which adjoins the eastern edge of the Project Area, is tributary to the Platte River; however, no effects or depletions of the Platte River or its tributaries are proposed as part of this project. Therefore, no downstream affects are 13 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado expected and these species are not discussed further. No habitat for the Mexican spotted owl (Strix occidentalis lucida) exists in the vicinity of the project area. 4.5.2 Species Evaluation The potential for occurrence of listed species was determined according to the categories listed below. Because a species may not be accommodated precisely by a given category (i.e., category definitions may be too restrictive), an expanded rationale for each category assignment is provided. Potential for occurrence categories are as follows. Known to occur —the species has been recently documented in the project area by a reliable observer. May occur —the project area is within the species' currently known range, and vegetation communities, soils, etc., resemble those known to be used by the species. Unlikely to occur —the project area is within the species' currently known range, but vegetation communities, soils, etc., do not resemble those known to be used by the species, or the project area is clearly outside the species' currently known range. Possible impacts to listed species were evaluated based on reasonably foreseeable project - related activities. The listed species were assigned to one of three categories of possible effect, following USFWS recommendations. The effects determinations recommended by USFWS include the following. May affect, is likely to adversely affect —adverse effects to listed species may occur as a direct or indirect result of the proposed action or its interrelated or interdependent actions, and the effect is not discountable, insignificant, or beneficial. May affect, is not likely to adversely affect —the proposed action may affect listed species and/or critical habitat; however, the effects are expected to be discountable, insignificant, or completely beneficial. No effect —the proposed action will not affect federally listed species or critical habitat. The three listed species with potential to occur in the project area are discussed below. 4.5.3 Preble's Meadow Jumping Mouse Habitat and Range Requirements: The Preble's meadow jumping mouse is generally found within the Platte and Arkansas River drainages of Colorado (USFWS 2010). This species inhabits heavily vegetated, shrub -dominated riparian habitats and immediately adjacent undisturbed grassland communities up to 100 meters beyond the suitable riparian habitat. There are currently no riparian areas, rivers or streams, or upland areas in Weld County that are designated critical habitat per the USFWS (USFWS 2013); however, the Project Area is within the USFWS' identified overall range for the mouse. 14 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado Potential for Occurrence: No habitats associated with the Mining Area could serve as primary habitat for the Preble's meadow jumping mouse; however, the dense vegetation may serve as secondary, migratory habitat for the mouse. The Lupton Meadows Ditch is greater than one mile from suitable riparian habitat and the closest positive trapping for the mouse is 13.0 miles to the north or 18 river miles, just east of Milliken in 2001 (USFWS 2015). As well, seven separate trapping efforts were performed between 1999 and 2001 within 2 miles on the South Platte River, and no Preble's were found. Nevertheless, given the quality of the vegetation and of the upland habitat within and adjacent to the Lupton Meadows ditch, and the presence of a suitable dispersal corridor in the vicinity (i.e., the South Platte River), the potential for the ditch to serve as Preble's mouse migratory habitat cannot be completely discounted. Determination of Impact: May affect, is not likely to adversely affect. The quality of the habitat along the Lupton Meadows Ditch could potentially support migratory behavior of the Preble's meadow jumping mouse. However, there are no records of the species within the project area. Consequently, any negative impacts to the mouse are very unlikely. 4.5.4 Colorado Butterfly Plant Habitat and Range Requirements: The Colorado butterfly plant has been listed under the ESA since October 2000 (USFWS 2010). It occupies wetland habitats along meandering stream channels of the high plains. This plant typically prefers open habitat where surrounding vegetation is not substantially overgrown, and in undisturbed areas it is found in association with native grasses. It is found primarily in southeastern Wyoming, north -central Colorado, and extreme western Nebraska (USFWS 2010). Potential for Occurrence: The proposed project is within the range for the species but no suitable habitat was observed during surveys. Colorado butterfly plant is unlikely to occur in the project area. Determination of Impact: No effect. 4.5.5 Ute Ladies' -tresses orchid Habitat and Range Requirements: Ute ladies' -tresses primarily occupy moist, irrigated or seasonally flooded soils in valley bottoms, gravel bars, old oxbows, or floodplains bordering springs, lakes, rivers, or perennial streams at elevations between 1,800 to 6,800 feet above mean sea level. Some occurrences have been found on agricultural lands managed for winter or early season grazing or hay production. Known sites often have low vegetative cover and may be subjected to periodic disturbances, such as flooding or grazing (Fertig et al. 2005). Potential for Occurrence: The proposed project is within the range for the species but no suitable habitat was observed during surveys. Ute ladies' -tresses orchid is unlikely to occur in the project area. Determination of Impact: No effect. 15 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado 4.5.6 MBTA and BGEPA The USFWS provides protection to native avian species under the MBTA. The MBTA makes it illegal for anyone to take, possess, import, export, transport, sell, purchase, barter, or offer for sale, any migratory bird, or the parts, nests, or eggs of such a bird, except under the terms of a valid permit issued by the USFWS. Several avian species protected by the MBTA, including raptors, are likely to occur within the project area. Nesting habitat is common throughout the Project Area, with the best habitat occurring at the east end, within the riparian habitat outside of the Mining Area, adjacent to the South Platte River. As well, the scattered trees at the west end of the Project Area and the naturalized trees within the Mining Area offer opportunities for Swainson's hawk (B. swainsonii), and, possibly, red -tail hawk (Buteo jamaicensis) nesting. Additionally, all trees within the Project Area should be considered as suitable nesting habitat for migratory birds subject to the protection of the MBTA. Bald eagles (Haliaeetus leucocephalus) and golden eagles (Aquila chrysaetos) are protected under the BGEPA. Both species may pass through the project area when traveling to areas of more suitable foraging or nesting habitats. Colorado Parks and Wildlife (CPW) has identified an active bald eagle nest approximately 960 feet east of the Mining Area (and approximately 600 feet from far east end of Project Area) (See Figure 4); however, this nest was not observed during site inspections and no bald eagles were observed in the area. Additionally, CPW has identified the riparian forest at the east end of the Project Area as bald eagle winter concentration area, and summer and winter roosting habitat. CPW offers recommended buffer zones for bald eagle and other raptor habitats for the purpose of avoiding inadvertent take (i.e., disturbance, failure of nest, harassment, etc.) of raptors and their eggs and young (CPW 2008). Specifically, CPW recommends the following buffer zones for bald eagle habitats: Nest Site: No new surface occupancy (i.e., any physical object that is intended to remain on the landscape permanently or for a significant amount of time. Examples include houses, oil and gas wells, tanks, wind turbines, roads, tracks, etc.) within 1/4 mile radius of active nests (i.e., used in current season or in any of the five previous breeding seasons). Seasonal restriction to human encroachment are recommended within 1/2 mile radius of active nests from October 15 through July 31. This closure is more extensive than the National Bald Eagle Management Guidelines (USFWS 2007) due to the generally open habitat used by Colorado's nesting bald eagles. Winter Night Roost: No human encroachment from November 15 through March 15 within 'A mile radius of an active winter night roost if there is no direct line of sight between the roost and the encroachment activities. No human encroachment from November 15 through March 15 within 'A mile radius of an active winter night roost if there is a direct line of sight between the roost and the encroachment activities. If periodic visits (such as oil well maintenance work) are required within the buffer zone after development, activity should be restricted to the period between 1000 and 1400 hours from November 15 to March 15. 16 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado LEGEND ,630 1) y+jF i 9i�. 43 f1, f:.�:�L,_I'._ = _ :._ _ Eatts ii ] i jt iph1 r'}.1_ 1.-11_'t _ - �� _ - -='1fI= _ P4r1d, 191.1, i, 1-4551, 2,2 rand'31, Ditches • Bald Eagle Nest Bald Eagle Nest 1/2 Mile Buffer ® Proposed Mining Area Qualitative Survey Area Section Weld County Road ROW Bald Eagle Winter Night Roost with 1/2 Mile Buffer FRE;MRID FOR Projection: Nad83 UTU 1 3N Date: 8+232018 Drafted ByRDB Reviewed By. At EPAREO BY. )Dot Consulting SOURCES: Project Features. 2 Dot 2016 and Anadarko 2019: 0 750 Protected Species Figure 4 Figure 4. Protected Species 17 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado No other raptor nests were observed during the site inspection; however, vocalizing red -tail hawks were heard in the cottonwoods at the east end of the Project Area. These vocalizations were likely between an adult and one or more fledglings, suggesting that there might be a nest in the vicinity. Although nesting is complete for the season, most raptors exhibit a tendency to return to nests for multiple years. Colorado Parks and Wildlife's (CPW) recommended setback for nesting red -tail hawks is 1/3 mile (CPW 2008). 4.6 Qualitative Review of West and East Portions of Project Area 2DOTperformed a qualitative review of the wetland habitats at the west end of the Project Area and of the riparian habitats at the east end of the Project Area. The west end was observed to support ponds, extensive stands of cattails, reed canarygrass meadows adjoining a meandering stream channel, and scattered cottonwoods, Russian olives (Elaeagnus angustifolia), and willows (Salix sp.). This area undoubtedly supports large areas of wetlands and, based on the dominance of the FACW reed canarygrass and cattails (OBL) throughout this area, wetland coverage greater than 50 -percent is likely. This western area would not appear to support habitat for either the Utes ladies' tresses orchid or the Colorado butterfly plant; however, habitat suitable for the Preble's meadow jumping mouse is possible, although a better understanding of grazing and management practices may be necessary to better evaluate. Photographs representative of this area are provided in Appendix A. The cottonwood riparian forest at the east end of the Project Area was dominated by cottonwoods, providing nearly 75 -percent cover in the area. Understory species were dominated by smooth brome (Bromus inermis; UPL), sunflower (Helianthus annuus; UPL), American licorice (Glycyrrhiza lepidota; FACU), burning bush (Bassia scoparia; FACU), prickly lettuce (Lactuca serriola; FAC), curly dock (Rumex crispus; FACW), saltgrass (Distichlis spicata; FACW), lambsquarters (Chenopodium album; FACU), and curlycup gumweed (Grindelia squarrosa; UPL), and coyote willow (Salix exigua; OBL). The overall dominance of upland species in the understory of this forest suggests few if any wetlands; however, small stands of coyote willow and saltgrass leave open the possibility of, at least, patches of wetland in low lying areas. Photographs representative of this area are provided in Appendix A. No habitat for either the Colorado butterfly plant or the Utes ladies' -tresses orchid is present within the riparian forest. Similarly, habitat for the Preble's meadow jumping mouse is limited; however, due to the location within the overall range for the mouse and proximity to the perennial surface water of the South Platte River, it must be considered as a possibility (formally "may affect, is not likely to adversely affect" as described for the ditch habitat within the Mining Area). 5.0 SUMMARY 2DOT identified two ditches within the Mining Area. Ditch 01, the Lupton Meadows Ditch, exhibited a strong OHWM and adjacent wetlands. Ditch 02 exhibited a narrow OHWM and 18 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado appeared to terminate in uplands. Ditch 01 may be considered jurisdictional by the USACE; however, the USACE reserves the right to make decisions on jurisdictional status on a case -by - case basis. No habitat for neither of the federally -listed plants was identified within the Project Area; however, marginally suitable habitat for the federally -threatened Preble's meadow jumping mouse is present within the Mining Area and is possible within both the west and east qualitatively evaluated portions of the Project Area. Potential habitat within the Mining Area would be suitable for migratory behavior only, and, even this, is considered unlikely due to the distance to suitable riparian habitat and the great distance, 18 river miles, to known occupied habitat. The wetland area at the west end of the Project Area, west of the Mining Area, may support extensive jurisdictional wetlands and other waters of the U.S. Coordination with USACE staff would be necessary to determine jurisdictional status. 19 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado REFERENCES Colorado Parks and Wildlife.2008. Recommended Buffer Zones and Seasonal Restrictions for Colorado Raptors. Unpublished Technical document. Available at: https://cpw. state.co.us/Documents/Wild lifeSpecies/LivingWithWildlife/RaptorBufferGuidelines20 08.pdf - --. 2016. KMZ Maps. Available at: http://cpw.state.co.us/learn/Pages/KMZ-Maps.aspx. Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of Wetlands and Deepwater Habitats of the United States. FWS/OBS-79/31. Washington, D.C.: U.S. Fish and Wildlife Service. Fertig, W., R. Black, and P. Wolken. 2005. Rangewide Status Review of Ute Ladies' -Tresses (Spiranthes diluvialis). Report prepared for the USFWS and the Central Utah Water Conservancy District. Lichvar, R.W., M. Butterwick, N.C. Melvin, and W.N. Kirchner. 2014. The National Wetland Plant List: 2014 Update of Wetland Ratings. Phytoneuron 2014-41:1-42. Munsell Color. 2009. Munsell Soil Color Charts. Rev. ed. Grand Rapids, MI: Munsell Color of X -Rite Corporation. U.S. Army Corps of Engineers (USACE). 1987. U.S. Army Corps of Engineers Wetlands Delineation Manual. Technical Report Y-87-1. Vicksburg, Mississippi: U.S. Army Engineers Waterways Experiment Station Environmental Laboratory. - --. 2005. Regulatory Guidance Letter, No. 05-05: Ordinary High Water Mark Identification. U.S. Army Corps of Engineers unpublished technical memo. Dated December 7, 2005. Available at: http://www.usace.army.mil/Portals/2/docs/civilworks/RGLS/rg105-05.pdf. Accessed January 15, 2015. - --. 2007. U.S. Army Corps of Engineers Jurisdictional Determination Form Instructional Guidebook. Available at: http://www.usace.army.mil/Portals/2/docs/civilworks/ regulatory/cwa_guide/jd_guidebook_051207final.pdf - --. 2010. Regional Supplement to the Corps of Engineers Wetland Delineation Manual: Great Plains Region (Version 2.0), edited by J.S. Wakeley, R.W. Lichvar, and C.V. Noble. ERDC/EL TR-10-1. Vicksburg, MS: U.S. Army Engineer Research and Development Center. U.S. Department of Agriculture, Natural Resources Conservation Service. 2010. Field Indicators of Hydric Soils in the United States, Version 7.0, edited by L.M. Vasilas, G.W. Hurt, and C.V. Noble. USDA, NRCS, in cooperation with the National Technical Committee for Hydric Soils. 20 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado U.S. Fish and Wildlife Service. 2000. Endangered and Threatened Wildlife and Plants: Threatened Status for the Colorado Butterfly Plant (Gaura neomexicana). Federal Register. Published October 18, 2000. Pages 62301-62310. - --. 2007. National Bald Eagle Management Guidelines. Technical Report prepared by the USFWS. May, 2007. ---. 2010. Endangered and Threatened Wildlife and Plants; Revised Critical Habitat for the Preble's Meadow Jumping Mouse in Colorado. Federal Register. Published December 15, 2010. Pages 78430-78483. - --. 2016. IPaC Trust Resources Report. Available at: https://ecos.fws.gov/ipac/proiect/ 7O2RW6K2V5FP5EUGK65NQUB2HA. Accessed on August 18, 2016 21 2DOT Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado APPENDIX A Site Photographs 2DOT Appendix A - Site Photographs Global Assets Gravel Mine Photograph 1. View of Lupton Meadows Ditch (Ditch 01) from north end looking south. Photograph 2. View of Ditch 01 looking south from midpoint Page 1 of 8 Appendix A - Site Photographs Global Assets Gravel Mine Photograph 5. View of Ditch 02 from midpoint. Note complete coverage by smooth brome and reed canarygrass Photograph 6. View of ditch at edge of crops. No development of OHWM. Page 3 of 8 Appendix A - Site Photographs Global Assets Gravel Mine Photograph 7. View of ditch at edge of actively farmed field Photograph 8. View of reed canarygrass-dominated wetland growing at water's edge in Ditch 01 (Lupton Meadows Ditch) Page 4 of 8 Appendix A - Site Photographs Global Assets Gravel Mine Photograph 9. View of wetland vegetation at water's edge within Ditch 01 Photograph 10. View of reed canarygrass and thickspike wheatgrass beneath cottonwood trees. Page 5 of 8 Appendix A - Site Photographs Global Assets Gravel Mine Photograph 11. Dense stand of coyote willows at northwest corner of Mining Area Photograph 12. Dense herbaceous vegetation along edge of Lupton Meadows Ditch that has structure suitable for supporting Preble's meadow jumping mouse migration between riparian habitats. Page 6 of 8 Appendix A - Site Photographs Global Assets Gravel Mine 1 I II Photograph 13. Ponds and cattail marsh at west end of Project Area Photograph 14. Dense stands of cattails at west end of Project Area Page 7 of 8 Appendix A - Site Photographs Global Assets Gravel Mine Photograph 15. Reed canarygrass monoculture adjoining man-made "meandering stream" serving as lateral off of the Meadows Island 1 Lateral Photograph 16. Riparian forest adjoining the South Platte River at the east end of the Project Area. Page 8 of 8 Wetland Delineation Report for the Global Assets Mine Property, Weld County, Colorado APPENDIX B Wetland Determination Data Forms 2DOT WETLAND DETERMINATION DATA FORM — Great Plains Region Project/Site: 6 fa ba f A55C 5 601C- I 11 (k City/County: We i Sampling Date: F Applicant/Owner, $.42 c —f i^..19 i COI I C -f-‹'- StC State: ca -t Samp ling Point1 Investigator(s): G.- e Nei e 'T- ' Section, Township, Range: / C17 ?''v /3/ U V 1 ` i e 67W o Landform (hillslope, terrace, etc.): t fair -,e.Local relief (concave, convex, none): h0/1-4___©/Slope (%): ....LIZ* Subregion (LRR): } ,"1 Lat: 40. 14fl c4 7 Long: —104 . 1,27 /Is- Datum: 146 5 el Soil Map Unit Name: A i'tvan 1 ) �GIMJ d-/%5/ 5 NWI classification: 1V —On -e Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? 40 Are "Normal Circumstances" present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transacts, important features, etc. Hydrophytic Vegetation Present? Yes Hydric Soil Present? Yes Wetland Hydrology Present? Yes Remarks: Fc kit i UTl Wy No No No Is the Sampled Area within a Wetland? Yes VEGETATION — Use scientific names of plants. Tree Stratum (Plot size: a , I . ) Absolute Dominant Indicator % Cover aes? StatusNumber Dominance Test worksheet of Dominant Species That Are OBL, FACW, or FAC (excluding FAC-): (A) 1. .dA5 5)ra, '-- '-^'_i 2. --122-_ Total Number of Dominant Species Across All Strata: 2." (B) 3. 4 Percent of Dominant Species That Are OBL, FACW, or FAC: {_ (NB) Sapling/Shrub Stratum (Plot size: ) b = Total Cover 1. ___ 2 Prevalence Index worksheet: Total % Cover of: Multiply by: 3 OBL species x 1 = 4 FACW species x 2 = 5. FAC species x 3 = Herb Stratum (Plot size: 0 , a 1 1 = Total Cover FACU species x 4 = Jl 1. f ' x= t r le' 7:4—...+‘-i UPL species x 5 = 2. ,s C-? fX _9—(— / c,, Column Totals: (A) (8) 3. (.....(s./..t c..., 'a 1 — i Prevalence Index = B/A = kV (71,5j7r," _ Lt C 5. _ Hydrophytic Vegetation Indicators: _ 1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test is >50% 3 - Prevalence Index is 53.0' T _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 6. ?' $' 9. 10. Woody Vine Stratum (Plot size: ) 76.----. Total Cover 1. 2. Hydrophytic Vegetation Present? Yes No Bare Ground in Herb Stratum = Total Cover Remarks: real Plams — version 2. US Army Corps of Engineers Sampling Point: lJ Profile Description: (Describe to the depth needed to document the Indicator or confirm the Depth Matrix Redox Features absence of indicators.) Te Remarks in Colo m i °k Color (moist) % Tvoe' Loci es) 517._ `Type: C D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. --Concentration, Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils: Histosol (Al)d Matrix (S4) 1 cm Muck (A9) (LRR1, J) _ — Sandy Gleyed — Histic Epipedon (A2) — Sandy Redox (S5) — Coast Prairie Redox (A16) (LRR F, G, H) Black Histic (A3) _ Stripped Matrix (S6) _ Dark Surface (S7) (LRR G) _ Hydrogen Sulfide (A4) — Loamy Mucky Mineral (F1) _ High Plains Depressions (F16) — Stratified Layers (A5) (LRR F) _ Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73) _ 1 cm Muck (A9) (LRR F, G, H) — Depleted Matrix (F3) _ Reduced Vertic (F18) — Depleted Below Dark Surface (A11) ____ Redox Dark Surface (F6) — Red Parent Material (TF2) _ Thick Dark Surface (Al2) — Depleted Dark Surface (F7) ,_ Very Shallow Dark Surface (TF12) Redox Depressions (F8) Other (Explain in Remarks) _ Sandy Mucky Mineral (Si) � — _ 2.5 cm Mucky Peat or Peat (S2) (LRR G, H) „ High Plains Depressions (F16) 'indicators of hydrophytic vegetation and 5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present, — unless disturbed or problematic. Restrictive Layer (if present): Type: Hydric Soil Present? Yes No Depth (inches): Remarks: Wetland Hydrology Indicators: Primary Indicators (minimum of one reouired: check all that aeoiv) Secondary indicators (minimum of two required) — Surface Soil Cracks (B6) — Sparsely Vegetated Concave Surface (88) — Drainage Patterns (810) _ Oxidized Rhizospheres on Living Roots (C3) (where tilled) — Crayfish Burrows (C8) — Saturation Visible on Aerial Imagery (C9) — Geomorphic Position (D2) — FAC-Neutral Test (D5) — Frost -Heave Hummocks (D7) (LRR F) _ Surface Water (Al) — Salt Crust (B11) — High Water Table (A2) _ Aquatic Invertebrates (813) Saturation (A3) — Hydrogen Sulfide Odor (C1) _ Water Marks (81) _ Dry -Season Water Table (C2) Sediment Deposits (B2) — Oxidized Rhizospheres on Living Roots (C3) Drift Deposits (83) (where not tilled) — Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) Iron Deposits (B5) — Thin Muck Surface (C7) _— Inundation Visible on Aerial Imagery (B7) — Other (Explain in Remarks) Water -Stained Leaves (B9) Field Observations: Surface Water Present? Yes No Depth (inches): Wetland Hydrology Present? Yes No _ Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Great Plains - Version 2.0 Project/Site: Applicant/Owner: Investigator(s): WETLAND DETERMINATION DATA FORM - Great Plains Region 45e-% Galt' 0014 City/County: k%Py A b.Ju C -C, k Ci —tc Landform (hillslope, terrace, etc.): —retrlrit C -t Section. Township, Range: Sampling Date: U3 State: Ca Sampling Point: Sec. 13 , TZ�%) 1671 Local relief (concave, convex, none): rrl f01192_(C ' ( , • L Slope (%): �g Subregion (LRR): (" Let: 4 Q. 14277 4 Long: -104_ Datum: W65 94 Soil Map Unit Name: I.• C©MO O4 /O.A9 19-1 % S /2 • f NWI classification: P7 an c Are climatic / hydrologic conditions on the site typical for this time of year? Yes Are Vegetation , Soil , or Hydrology Are Vegetation , Soil , or Hydrology No (If no, explain in Remarks.) significantly disturbed? 1O Are "Normal Circumstances" present? Yes naturally problematic? 1 (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes 0 Remarks: VEGETATION — Use scientific names of plants. Stratu (Plot size: ) Absolute Dominant Indicator % Cover S ci s? S tus Dominance Test worksheet: of Dominant , or s That That Are OBL, FACW, or FAC (excluding FAC-): __� I (A) �? ItJ' S f �,.y 1 D /,J ♦ 46 — -` T // ,S 2.. % 1t'' .f�j d K7 /�t�" t tj - 3. Total Number of Dominant Species Across All Strata: C (B) 4. Saaling/S rub Stratum (Plot size: ) = Total Cover Percent of Dominant Species That Are OBL, FACW, or FAC: go (A/B) 1 —20— `i 1. ._,1%/1 V e/ 9 ff 4 2. lJ __ P revalence Index worksheet: Total % Cover of: Multiply by: 3 4. 0BL species x 1 = 5. FACW species x 2 = Herb turn (Plot size: ) .G-'-' = Total Cover FAC species x 3 = 5-- O FACU species x 4 = 1• 4 /a 1` a UPL species x 5= 2. - S f el S /lt -, 3 C. Column Totals: (A) (B) 3. for tr.4-, 2., Prevalence Index = B/A = 4. a /isz ✓S 16tVL to —.1._<___ 14 T ( 5. w Hydrophytic Vegetation Indicators: -1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test is >50% — 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 6 7. 8. 9. 10. Woody Vine Stratum (Plot size: ) Ig C) = Total Cover 1 2. Hydrophytic Vegetation Present? Yes No % Bare Ground in Herb Stratum = Total Cover > Remarks: I IC Armu (lnrr.,, ea C....;......... Great Plains — Version 2.0 SOIL Sampling Point Profile Description: (Describe to the depth needed to doodlnettt th ?.dic,tor or confirm Depth Matrix Re E the absence of Indicators.) 7e Remarks (inches) Co % Color (moist) ©-1f d I N .r� 'Type: C=Concentration, D=depletion, RM=Reduced Matrix. CS=Covered or Coated Sand Grains. Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils3: _ Histosol (Al) _ Sandy Gleyed Matrix (S4) _ 1 cm Muck (A9) (LRR I, J) Histic Epipedon (A2) _ Sandy Redox (S5) _ Coast Prairie Redox (A16) (LRR F, G, H) _ Black Histic (A3) _ Stripped Matrix (S6) _ Dark Surface (S7) (LRR G) Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) _ High Plains Depressions (F16) Stratified Layers (A5) (LRR F) _ Loamy Greyed Matrix (F2) (LRR H outside of MLRA 72 & 73) _ 1 cm Muck (A9) (LRR F, G, H) _ Depleted Matrix (F3) _ Reduced Vertic (F18) _ Depleted Below Dark Surface (Al 1) _ Redox Dark Surface (F6) _ Red Parent Material (TF2) _ Thick Dark Surface (Al2) _ Depleted Dark Surface (F7) _ Very Shallow Dark Surface (TF12) _ Sandy Mucky Mineral (S1) _ Redox Depressions (F8) _ Other (Explain in Remarks) 2.5 cm Mucky Peat or Peat (52) (LRR G, H) _ High Plains Depressions (F16) 3lndlcators of hydrophytic vegetation and _ 5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Present? Yes�j No Depth (inches): , / /�Hyd/ric/Soli Remarks: O p Y � t✓ ! c t �''f�(�'�+ f j i� t t f r ( ©r is i6.?c r� �- ,e74-47 G� t . r � I'D 'ref-Alltill lr HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required; check all that apply) Secondary Indicators (minimum of two required) Surface Water (Al) _ Salt Crust (B11) _ Surface Soil Cracks (B6) High Water Table (A2) — Aquatic Invertebrates (B13) _ Sparsely Vegetated Concave Surface (88) Saturation (A3) _ Hydrogen Sulfide Odor (C1) _ Drainage Patterns (B10) _ Water Marks (B1) _ Dry -Season Water Table (C2) _ Oxidized Rhizospheres on Living Roots (C3) Sediment Deposits (92) Oxidized Rhizospheres on Living Roots (C3) (where tilled) Drift Deposits (B3) (where not tilled) _ Crayfish Burrows (C8) _ Algal Mat or Crust (B4) — Presence of Reduced Iron (C4) ` Saturation Visible on Aerial Imagery (C9) _ Iron Deposits (B5) — Thin Muck Surface (C7) _ Geomorphic Position (D2) Inundation Visible on Aerial Imagery (B7) _ Other (Explain in Remarks) FAC-Neutral Test (D5) _ Water -Stained Leaves (B9) _ Frost -Heave Hummocks (D7) (LRR F) Field Observations: Surface Water Present? Yes No Depth (inches): 0 , Wetland Hydrology Present? Yes No Water Table Present? Yes No Depth (inches): / r _1 Saturation Present? Yes X. No Depth (inches): Q (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: .. $Ut +,r,,t. 4/x~ +� I7►"L 521' 4v fq , 34i �7 . , �f ypl(/,11,7 4fioke,di Ivy / t(I�L 61/ t Oi( Ic r--` 1'11 aI7 - fro k - US US Army Corps of Engineers Great Plains — Version 2.0 WETLAND DETERMINATION DATA FORM — Great Plains Region / Project/Sit I �L24 /`t sscf 6ruvC I ti h ? City/County: Applicant/Owner �`{ GJQ nL►G/�"f� lnvestl ato s : >� Sampling Date: State: CO Sampling Point: g r() V { 44-- Section, Township, Range: 5er • / 3 72-/1,/ P. 6'7 W Landfor hillslope, terra?), etc.): c./i " C/jTQ�r�fJ Local relief (concave, convex, none): n'l !c Ce1)117y Slope (%): Subregion (LRR): l� t/ Lat: 40. /42-6 94 Long: j©4. 3 3 2 2-14 ©U Datum: (A/( .5 55' Soil Map Unit Name: V4Gppo G /P001_0 / aV' S /a p.rf NWI classification: n ©AC_ Are climatic / hydrologic conditions on the site typical for this time of year? Yes No (If no, explain in Remarks.) Are Vegetation Soil or Hydrology Are Vegetation , Soil , or Hydrology significantly disturbed? n`ti Are "Normal Circumstances" present? Yes - naturally problematic? t, (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes ° No Wetland Hydrology Present? Yes No Remarks: Is the Sampled Area within a Wetland? Yes No VEGETATION — Use scientific names of plants. 4 i Absolute Dominant Indicator Tree Stra PIot si . U % Cover Species? to s Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC (excluding FAC-): 3 (A) /� C ,, 1. z2/7 br Lvl ic' "� J ° _s,_ y T A �-- 2. 3. Total Number of Dominant Species Across All Strata:_ (5) 4. , / i q0 = Total Cover Percent of Dominant Species p That Are OBL, FACW, or FAC: 7 S o (NB) Sapling/Shrub Stratum (Plot size: 40 X 6 U ) 1. 54/I v- /O ` rk0 lam/K/ 2. "v/'Np/]o✓i a pc, 5' 04(46 7 /v qtr v Prevalence Index worksheet: Total °/0 Cover of: Multiply by: 3, r 4. OBL species x 1 = 5 FACW species x 2 = 1 / O = Total Cover FAC species x 3 = Herb Stratum (Plot size: Q FACU species x 4 = A ` 1. f h4 r/G ( i S/� an, h l Lr Lrt ` ! Y Al UPL species x 5 = * 2. (b? vt /t/r., /mss Fie/ ti s 2 '1 Column Totals: (A) (B) 3. ( / ! K ki A 1(V`Prltt TS CM Prevalence Index = B/A = _ 4. WAIN.Y ciJ S ___ ! 5. o rw Ls ��7�fr (" tit �/y� t �j �� t?I7 Hydrophytic Vegetation Indicators: - Rapid Test for Hydrophytic Vegetation _( 2_ - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 6. . ,� / l rq � y 7f/+ } -- 7.r_ 4< _ 8. I'K� � 1tl,tr��1Ar 4--Q 9. S IPf O S �S41 t: 10. o Crig&.ip P� ©(7 = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. Hydrophytic Vegetation Present? Yes _ No r = Total Cover % Bare Ground in Herb Stratum ( Remarks: fi Great Plains — Version 2.0 SOIL Sampling Point o Profile Description: (Describe to the depth needed to document the indicator or confirm Depth Matrix Redox Features the absence of indicators.) f e Remarks (Inches) o o i st % Color moist) % Type' Loci rt- 16, A _ - -- O t 16-2-c;$ / it 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils': Histosol (Al) — Sandy Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J) _ Histic Epipedon (A2) _ Sandy Redox (S5) — Coast Prairie Redox (A16) (LRR F, G, H) — Black Histic (A3) _ Stripped Matrix (S6) _ Dark Surface (S7) (LRR G) _ Hydrogen Sulfide (A4) — Loamy Mucky Mineral (F1) i High Plains Depressions (F16) Stratified Layers (A5) (LRR F) i Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73) _ 1 cm Muck (A9) (LRR F, G, H) Depleted Matrix (F3) Reduced Vertic (F18) _ Depleted Below Dark Surface (All) _ Redox Dark Surface (F6) _ Red Parent Material (TF2) _ Thick Dark Surface (Al2) _ Depleted Dark Surface (F7) _ Very Shallow Dark Surface (TF12) _ Sandy Mucky Mineral (S1) Redox Depressions (F8) _ Other (Explain in Remarks) 2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) 3Indicators of hydrophytic vegetation and 5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Hydric Soil Present? Yes Noo _ Depth (inches): Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (minimum of two required) Surface Water (Al) Salt Crust (B11) _ Surface Soil Cracks (B6) High Water Table (A2) _ Aquatic Invertebrates (B13) i Sparsely Vegetated Concave Surface (B8) Saturation (A3) Hydrogen Sulfide Odor (C1) — Drainage Patterns (010) _ Water Marks (B1) ADry-Season Water Table (C2) _ Oxidized Rhizospheres on Living Roots (C3) _ Sediment Deposits (02) _ Oxidized Rhizospheres on Living Roots (C3) (where tilled) _ Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8) Algal Mat or Crust (B4) — Presence of Reduced Iron (C4) _ Saturation Visible on Aerial Imagery (C9) Iron Deposits (B5) _ Thin Muck Surface (C7) _ Geomorphic Position (D2) Inundation Visible on Aerial Imagery (87) — Other (Explain in Remarks) .X FAC-Neutral Test (D5) _ Water -Stained Leaves (B9) _ Frost -Heave Hummocks (D7) (LRR F) Field Observations: ,r Surface Water Present? Yes Y No Depth (inches): 0 ,'- Wetland Hydrology Present? Yes No Water Table Present? Yes No Depth (inches): 1 1r Saturation Present? Yes No Depth (inches): I .5 (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: 4. S cc, C--,- (,,,4 4,-(0) ''v ' 2-l' PT1 d." ,- 3O.1„.014, ii t'trid tr" 1t(i-r t2IR , US Army Corps of Engineers Great Plains — Version 2.0 WETLAND DETERMINATION DATA FORM — Great Plains Region Project/Site: (S1"�LGv/ A,f5�S GrAV,/1 //h{ City/County: WL'L4 Applicant/Owner: 3.5`Jt...oLlC ,c.r.. State: CO Sampling Point: Investigator(s): (r Y ' .-tc, f -- Section, Township, Range: Sec- 13,1 N P-67 J Landform (hillslope, terrace, etc.: "f" -tVy ( -e Subregion (LRR): n Soil Map Unit Name: D D6t--P C/t ooh ( y i %i .r1,f NWI classification: h lone' v_ Are climatic / hydrologic conditions on the site typical for this time of year? Yes " No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? / 10 Are "Normal Circumstances" present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? r) 0 (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Lat: Sampling Date: Local relief (concave, convex, none): i!+l G/tof Di1 Slope (%): Long. -104. E t 7`7C' Datum: 1/65 91 Hydrophytic Vegetation Present? Hydric Soil Present? Wetland Hydrology Present? Remarks: k- r t 5 Yes Yes Yes No No No VEGETATION — Use scientific name of plants. Is the Sampled Area within a Wetland? Yes No Tree St - (Plot siz • 0 „ ) Absolute % Cover Dominant Indicator Species? Status Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC (excluding FAC-): / (A) _ 1. ' `, ` � " 90 _ 2. 3. Total Number of Dominant Species Across All Strata: { 3 (B) 4. Sapfinq/Shrub Stratum (Plot size: } I= Total Cover Percent of Dominant Species That Are OBL, FACW, or FAC: _-_3 (A/B) 1. 2 Prevalence Index worksheet: Total % Cover of: Multiply bv: 3, 4 OBL species x 1 = 5. FACW species x 2 = j Herb S atum (Plot size: tVf } = Total Cover r FAC species x 3 = __r FACU species x 4 = 1. 44C -ht CA UPL species x 5 = 2. tt 5 r, ) fEG/ v 5 '7�-— Column Totals: (A) (B) 3. nr,,,, i u� td5 fVenS/S --,C / Z. Prevalence Index = B/A = 4 iw�/+ �*t 5 ,,,tom. Hydrophytic Vegetation Indicators: 1 Rapid Test for Hydrophytic Vegetation 2 - Dominance Test is >50% _ 3 - Prevalence Index is 53.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 6 Z 8. U g 10. _= Woody Vine Stratum (Plot size: ) Total Cover 1. 2. Hydrophytic Vegetation Present? Yes No % Bare Ground in C Herb Stratum T = Total Cover Remarks: Great Plains — Version 2.0 SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the Indicator or confirm Depth Matrix Redox Features the absence of indicators.) Remarks (inches) Coo oist 0/ Color moist) % Tune' Loc2 00- 1 2 O t tic �, - -- --- ,��, 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils': _ Histosol (Al) Sandy Gleyed Matrix (S4) 1 cm Muck (A9) (LRR I, J) _ Histic Epipedon (A2) Sandy Redox (S5) — Coast Prairie Redox (A16) (LRR F, G, H) Black Histic (A3) Stripped Matrix (S6) _ Dark Surface (S7) (LRR G) _ Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) _ High Plains Depressions (F16) _ Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73) _ 1 cm Muck (A9) (LRR F, G, H) _ Depleted Matrix (F3) _ Reduced Vertic (F18) Depleted Below Dark Surface (A11) Redox Dark Surface (F6) _ Red Parent Material (TF2) _ Thick Dark Surface (Al2) _ Depleted Dark Surface (F7) _ Very Shallow Dark Surface (TF12) _ Sandy Mucky Mineral (S1) — Redox Depressions (F8) _ Other (Explain in Remarks) _ 2.5 cm Mucky Peat or Peat (S2) (LRR G, H) — High Plains Depressions (F16) 3lndicators of hydrophytic vegetation and _ 5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Hydric Soil Present? Yes No Depth (inches): Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that aooly) Secondary Indicators (minimum of two required) Surface Water (Al) _ Salt Crust (B11) _ Surface Soil Cracks (B6) _ High Water Table (A2) _ Aquatic Invertebrates (B13) _ Sparsely Vegetated Concave Surface (B8) — Saturation (A3) _ Hydrogen Sulfide Odor (C1) _ Drainage Patterns (B10) _ Water Marks (81) Dry -Season Water Table (C2) — Oxidized Rhizospheres on Living Roots (C3) Sediment Deposits (B2) _ Oxidized Rhizospheres on Living Roots (C3) (where tilled) Drift Deposits (B3) (where not tilled) _ Crayfish Burrows (C8) _ Algal Mat or Crust (B4) _ Presence of Reduced Iron (C4) _ Saturation Visible on Aerial Imagery (C9) _ Iron Deposits (B5) _ Thin Muck Surface (C7) Geomorphic Position (D2) Inundation Visible on Aerial Imagery (B7) _ Other (Explain in Remarks) _ FAC-Neutral Test (D5) Water -Stained Leaves (B9) — Frost -Heave Hummocks (D7) (LRR F) Field Observations: Surface Water Present? Yes No Depth (inches): Wetland Hydrology Present? Yes No _ . Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Great Plains — Version 2.0 WETLAND DETERMINATION /INfDATA FORM —�Gr/eat Plains Region Project/Site: 6/ / A SSGtj/'6Ian ✓P / I /% City/County: k4? l � / �, Sampling Date: Applicant/Owner: s ti_i Cake rc State: CI) Sampling Point: Investigator(s): "°"t �Vfas' Section, Township, Range: .5 G. / 3, 7N 2 67A, Landforrn (hillslope, terrace, etc.): f Grro (--? Local relief (concave, convex, none): h © jet t Slope (%): Subregion (LRR): Soil Map Unit Name: Lat Long: !©4. 63446'2- Datum: W6 se/ vekrc., 7N1l-1 NWI classification: noxt Are climatic / hydrologic conditions on the site typical for this time of year? es No (If no, explain in Remarks.) Are Vegetation , Soil , or Hydrology significantly disturbed? /1/O Are "Normal Circumstances" present? Yes No Are Vegetation , Soil , or Hydrology naturally problematic? f1) D(If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes No Hydric Soil Present? Yes No Wetland Hydrology Present? Yes No Is the Sampled Area within a Wetland? Yes No >c - Remarks: VEGETATION — Use scientific names of plants. Tree Stratum (Plot size: ) Absolute Dominant Indicator % Cover Species? Status Dominance Test worksheet: Number of Dominant Species 1 That Are OBL, FACW, or FAC / (excluding FAC-): (A) 2. 3. Total Number of Dominant/ 4. Species Across All Strata: (B) �� Saplina/Shrub Stratum (Plot size: 3 X 4%', ) = Total Cover Percent of Dominant Species �-y Q That Are OBL, FACW, or FAC: V C� to (A/B) 1. 5,4— t,x ^16)sr' 2 T Prevalence Index worksheet: 3. Total % Cover of: Multiply by: 4. OBL species x 1 = 5 FACW species x 2 = i t Herb Stratum (Plot size: 3fl X 4?? ) = Total Cover FAC species x 3 = FACU species x 4 = 1. Gt COT/t"in f UPL species x 5 = 2. lJt VV Column Totals: (A) (B) 3. 4 Prevalence Index = B/A = 5. Hydrophytic Vegetation Indicators: 6. Rapid Test for Hydrophytic Vegetation 7. — 2 - Dominance Test is >50% 8. — 3 - Prevalence Index is 53.0' 9. _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 10. _ Problematic Hydrophytic Vegetation' (Explain) = Total Cover Woody Vine Stratum (Plot size: ) 'Indicators of hydric soil and wetland hydrology must 1. be present, unless disturbed or problematic. 2. Hydrophytic % Bare Ground in Herb Stratum 2- ,� = Total Cover Vegetation Present? Yes No Remarks: Great Plains — Version 2.0 SOIL Sampling Point Profile Description: (Describe to the depth needed to document the indicator or confirm Depth Matrix Redox Features the absence of indicators.) Texture Remarks (inches) Color moist % Color (moist) % Tyne' Loc2 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) Indicators for Problematic Hydric Soils': _ Histosol (Al) Sandy Gleyed Matrix (S4) _ 1 cm Muck (A9) (LRR I, J) _ Histic Epipedon (A2) Sandy Redox (S5) _ Coast Prairie Redox (A16) (LRR F, G, H) _ Black Histic (A3) i Stripped Matrix (S6) — Dark Surface (S7) (LRR G) _ Hydrogen Sulfide (A4) _ Loamy Mucky Mineral (F1) _ High Plains Depressions (F16) Stratified Layers (A5) (LRR F) Loamy Gleyed Matrix (F2) (LRR H outside of MLRA 72 & 73) 1 cm Muck (A9) (LRR F, G, H) o Depleted Matrix (F3) Reduced Vertic (F18) _ Depleted Below Dark Surface (A11) — Redox Dark Surface (F6) _ Red Parent Material (TF2) _ Thick Dark Surface (Al2) _ Depleted Dark Surface (F7) , Very Shallow Dark Surface (TF12) Sandy Mucky Mineral (S1) _ Redox Depressions (F8) _ Other (Explain in Remarks) 2.5 cm Mucky Peat or Peat (S2) (LRR G, H) _ High Plains Depressions (F16) 'indicators of hydrophytic vegetation and _ 5 cm Mucky Peat or Peat (S3) (LRR F) (MLRA 72 & 73 of LRR H) wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Hydric Soil Present? Yes N✓ Depth (inches): Remarks: HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (minimum of two required) _ Surface Water (Al) Salt Crust (B11) _ Surface Soil Cracks (B6) T High Water Table (A2) — Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8) _ Saturation (A3) _ Hydrogen Sulfide Odor (C1) Drainage Patterns (610) _ Water Marks (81) Dry -Season Water Table (C2) _ Oxidized Rhizospheres on Living Roots (C3) Sediment Deposits (B2) _ Oxidized Rhizospheres on Living Roots (C3) (where tilled) Drift Deposits (B3) (where not tilled) _ Crayfish Burrows (C8) _ Algal Mat or Crust (84) — Presence of Reduced Iron (C4) Saturation Visible on Aerial Imagery (C9) _ Iron Deposits (B5) _ Thin Muck Surface (C7) Geomorphic Position (D2) Inundation Visible on Aerial Imagery (B7) Other (Explain in Remarks) _ FAC-Neutral Test (D5) Water -Stained Leaves (89) i Frost -Heave Hummocks (D7) (LRR F) Field Observations: Surface Water Present? Yes No Depth (inches): Wetland Hydrology Present? Yes No ....4. Water Table Present? Yes No Depth (inches): Saturation Present? Yes No Depth (inches): (includes capillary fringe) Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: US Army Corps of Engineers Great Plains — Version 2.0 WETLAND DETERMINATION DATA FORM — Great Plains Region Project/Site: Applicant/Owner: Investigator(s): Landform (hillslope, terrace, etc.): 440 Lat: 4f0. 1441#7, Soil Map Unit Name: D A .4 O O 6.417 `©G1—rJv 71 %a S �"'�J NWI classification: Are climatic / hydrologic conditions on the sit cal for this time of year? Yes &l©bAsscis 6t'Wclt1&-c City/County: h e! 4 �` Sampling Date: State: C G Sampling Point: _ Section, Township, Range: Se t 3) Local relief (concave, convex, none): Vern CG1 Slope (%): Datum: W6 S Subregion (LRR): 6z7 Long: —/04. / ec / No (If no, explain in Remarks.) nom Are Vegetation , Soil , or Hydrology significantly disturbed? + Are "Normal Circumstances" present? Yes/s No Are Vegetation , Soil , or Hydrology naturally problematic? yl'D (If needed, explain any answers in Remarks.) SUMMARY OF FINDINGS — Attach site map showing sampling point locations, transects, important features, etc. Hydrophytic Vegetation Present? Yes Hydric Soil Present? Yes Wetland Hydrology Present? Yes Remarks: No No No Is the Sampled Area within a Wetland? Yes No VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Tree Stratum (Plot size: ) % Cover Species? Status Dominance Test worksheet: Number of Dominant Species That Are OBL, FACW, or FAC (excluding FAC-): (A) 1. 2. Total Number of Dominant Species Across All Strata: / (B) 3. 4 Percent of Dominant Species f{�ff-�� That Are OBL, FACW, or FAC: t./t✓ (NB) = Total Cover Sapling/Shrub Stratum (Plot size: ) 1. ! 2 Prevalence Index worksheet: Total % Cover of: Multiply by: 3. OBL species x 1 = 4. FACW species x 2 = 5. FAC species x 3 = t = Total Cover FACU species x 4 = Herb St atu (Plot size: 31)C ) ,), ,t.-, r/1C gtr 1. t'/1h ,3 6r/'J s arkit, /j' UPL species x 5 = _ZO / i�1.C 5 l ' A 2. 1-m j s At 5— Column Totals: (A) (B) ., .14-1?; 3. Prevalence Index = B/A = 4 5. Hydrophytic Vegetation Indicators: 1 - Rapid Test for Hydrophytic Vegetation _ 2 - Dominance Test is >50% _ 3 - Prevalence Index is s3.0' _ 4 - Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) _ Problematic Hydrophytic Vegetation' (Explain) 'Indicators of hydric soil and wetland hydrology must be present, unless disturbed or problematic. 6. 7. 8. 9. 10. W = Total Cover Woody Vine Stratum (Plot size: ) 1. 2. Hydrophytic Vegetation Present? Yes No = Total Cover % Bare Ground in Herb Stratum 0 Remarks: Great Plains — Version 2. US Army Corps of Engineers SOIL Sampling Point: Profile Description: (Describe to the depth needed to document the indicator or confirm Depth Matrix Redox Features the absence of indicators.) e u Remarks 'nches Color o % Color (moist) % Tvae' Loc2 (/ i.2 V f ___ ()tab,/ Jo 'Type: C=Concentration, D=Depletion, RM=Reduced Matrix, CS=Covered or Coated Sand Grains. 2Location: PL=Pore Lining, M=Matrix. Hydric Soil Indicators: (Applicable to all LRRs, unless otherwise noted.) _ Histosol (A1) _ Sandy Gleyed Matrix (S4) _ Histic Epipedon (A2) _ Sandy Redox (S5) _ Black Histic (A3) _ Stripped Matrix (S6) _ Hydrogen Sulfide (A4) Loamy Mucky Mineral (F1) Stratified Layers (A5) (LRR F) X.Loamy Gleyed Matrix (F2) 1 cm Muck (A9) (LRR F, G, H) _ Depleted Matrix (F3) Depleted Below Dark Surface (A11) _ Redox Dark Surface (F6) Thick Dark Surface (Al2) _ Depleted Dark Surface (F7) _ Sandy Mucky Mineral (S1) Redox Depressions (F8) 2.5 cm Mucky Peat or Peat (S2) (LRR G, H) High Plains Depressions (F16) _ 5 cm Mucky Peat or Peat (53) (LRR F) (MLRA 72 & 73 of LRR H) Indicators for Problematic Hydric Soils': _ 1 cm Muck (A9) (LRR I, J) — Coast Prairie Redox (A16) (LRR F, G, H) _ Dark Surface (S7) (LRR G) High Plains Depressions (F16) (LRR H outside of MLRA 72 & 73) _ Reduced Vedic (F18) _ Red Parent Material (TF2) _ Very Shallow Dark Surface (TF12) _ Other (Explain in Remarks) 'Indicators of hydrophytic vegetation and wetland hydrology must be present, unless disturbed or problematic. Restrictive Layer (if present): Type: Hydric Soil Present? Yes �r No Depth (inches): `�!- //'� Remarks: pi ... ee ca 1� 1„,,,I1j /i✓1 HYDROLOGY Wetland Hydrology Indicators: Primary Indicators (minimum of one required: check all that apply) Secondary Indicators (minimum of two required) _ Surface Water (A1) _ Salt Crust (B11) — Surface Soil Cracks (B6) _ High Water Table (A2) Aquatic Invertebrates (B13) Sparsely Vegetated Concave Surface (B8) _ Saturation (A3) _ Hydrogen Sulfide Odor (C1) , Drainage Patterns (B10) )(Water Marks (B1) Dry -Season Water Table (C2) _ Oxidized Rhizospheres on Living Roots (C3) Sediment Deposits (B2) i Oxidized Rhizospheres on Living Roots (C3) (where tilled) _ Drift Deposits (B3) (where not tilled) Crayfish Burrows (C8) _ Algal Mat or Crust (84) Presence of Reduced Iron (C4) _ Saturation Visible on Aerial Imagery (C9) _ Iron Deposits (B5) Thin Muck Surface (C7) eomorphic Position (D2) Inundation Visible on Aerial Imagery (B7) _ Other (Explain in Remarks) �'FAC-Neutral Test (D5) Water -Stained Leaves (B9) /_' '`Frost -Heave Hummocks (D7) (LRR F) Field Observations: a Surface Water Present? Yes No Depth (inches): 3 Wetland Hydrology Present? Yes No /� ,`. Water Table Present? Yes �. No Depth (inches): / I Saturation Present? Yes X No Depth (inches): /0 (includes capillary fringe) / Describe Recorded Data (stream gauge, monitoring well, aerial photos, previous inspections), if available: Remarks: (.JI-illt(/i US Army Corps of Engineers Great Plains — Version 2.0 EXHIBIT I - SOILS INFORMATION The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.9 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: (1) In consultation with the Soil Conservation Service or other qualified person, indicate on a map (in Exhibit C) or by a statement the general type, thickness and distribution of soil over affected land. The soil types on the site are shown on the attached Soil Map -Fort Lupton Gravel Mine for a description of the soil type on site. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit I -1 " --_-7, %dam r L✓ f pp v fry i o / /f l//' ' --_,�� I I ll ��. - o l "L —J+- ` �\ -�� /��— "I i ..\ ��_ 1 \� /4,1 o ' p WI / 1 \.' 9As :\ (` `1 • t 3. @ ii igiE ▪ g GP' i tri Pr \ $ t � I 1 _:� i s ',/ =\ —\ % I' e g'_I 11 i1 1 !I ti gig I ititil II !II 1sgo 00 i1l9�Q I1f 1 n l 51 °� II �� il, / � 9 al,._-„__ _, , g� g t 7 7777777777 SOILS MAP LEGEND MAP UNIT NAME ALTVAN LOAM, 0 TO 1 PERCENT SLOPES AQUOLLS AND AQUENTS, GRAVELLY SUBSTRATUM BANKARD SANDY LOAM, 0 TO 3 PERCENT SLOPES, FREQUENTLY FLOODED DACONO CLAY LOAM, 0 TO 1 PERCENT SLOPES OTERO SANDY LOAM, 1 TO 3 PERCENT SLOPES VONA LOAMY SAND, 3 TO 5 PERCENT SLOPES WATER MAP UNIT SYMBOL ooeNFAPa Did Eb:0E219loZI9Zl0l'6MP'S`Jld-ddy-SIHJ01S133HS1s6u!Me,QlslessyIegoIJ/c -6eMsa9Ff EXHIBIT J - VEGETATION INFORMATION The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.10 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: (a) Description of present vegetation types including estimates of cover and height of principal species in each life -form represented; This information is provided in the attached Exhibit H Wildlife Information, prepared by Two Dot Consulting environmental firm, located at 2810 North Speer Blvd, Denver, Colorado 80211, based on a site investigation conducted on August 18, 2016. (b) Relationship of present vegetation to soil types; This information is provided in the attached Exhibit H Wildlife Information, prepared by Two Dot Consulting environmental firm, located at 2810 North Speer Blvd, Denver, Colorado 80211, based on a site investigation conducted on August 18, 2016. (c) Estimates of annual production and carrying capacity if the choice for reclamation is for range or agriculture. Non -applicable. The proposed reclamation is for a water storage reservoir. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit J -1 EXHIBIT K - CLIMATE INFORMATION The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.11 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: Provide a description of the significant climatological factors for the locality. This property is in a semi -arid continental climate strongly influenced by the Rocky Mountains. The area is usually warm in the summer with frequent hot days. In winter, periods of very cold weather are caused by arctic air moving in from the north or northwest. Milder periods occur when westerly winds are warmed as they move down slope off of the mountains to the east. Weather monitoring data is not available from the site. The nearest weather monitoring station is at Ft. Lupton and Brighton, Colorado. Data is collected from the Western Regional Climate Center. The table below lists the mean monthly temperature, and average total precipitation on a monthly and annual basis for the period of record from January 1, 1950 to December 31, 2000. Most of the precipitation occurs as rainfall during the warmer part of the year with the heaviest rainfalls in the late spring and early summer. Winter snowfall is frequent but the snowcover usually melts quickly during the milder periods. Mean Monthly Temperature (F) Average Total Precipitation (in.) Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual 28.0 32.9 39.1 48.1 57.7 67.3 72.8 70.7 61.9 50.8 37.1 29.5 49.7 0.44 0.39 1.04 1.44 2.12 1.63 1.44 1.39 1.16 0.83 0.69 0.42 12.99 Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit K -1 EXHIBIT L - RECLAMATION COSTS The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.12 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: All Phases have approximately the same area that will be disturbed at one time, therefore this area is used to calculate the potential reclamation liability. • Phase 1 would be 100% mined and 100% reclaimed. Mining will be complete for this phase with mining occurring at the final shoreline reclamation slope (3H:1V). This phase will require final grading, topsoil placement, seed and mulch. ■ Phase 2 would be 100% mined and 100% reclaimed. This phase will be mined at the final shoreline reclamation slope (3H:1V). This phase will require final grading, topsoil placement, seed and mulch. • Phase 3 would be 100% mined and 100% reclaimed. This phase will be mined at the final shoreline reclamation slope (3H:1V). This phase will require final grading, topsoil placement, seed and mulch. • Phase 4 would be 100% mined and 100% reclaimed. This phase will be mined at the final shoreline reclamation slope (3H:1V). This phase will require final grading, topsoil placement, seed and mulch. ■ The slurry wall is proposed to be installed prior to exposure of groundwater. Therefore we request the option for 20% bonding of this cost. The slurry wall design, specifications, and quality assurance plan will be approved through a technical revision process prior to exposure of groundwater in the pit. Please refer to the attached table for estimates of quantities and associated costs. Bestway Concrete & Aggregates —Lupton Meadwos Gravel Mine — MLRB 112 Permit Application Exhibit L -1 EXHIBIT M - OTHER PERMITS AND LICENSES The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.13 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: The Operator will apply for the following permits prior to mining: Colorado Department of Public Health and Environment • Air Pollution Emission Notice (APEN) Permit • Colorado Discharge Permit System (CDPS) and Stormwater Management Plan Colorado State Engineer's Office • Substitute Water Supply Plan (SWSP) • Well Permit Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit M -1 Attachment for Exhibit L Lupton Meadows Gravel Mine - Reclamation Cost Estimate Activity Quantity Units Unit Costs Cost A. Phase 1 - 100% mined and 90% reclaimed 1 Final grade and place 6" of topsoil on the entire disturbed area 412 CY $ 1.05 $ 432.60 2 Seed and mulch 3.81 Acres $ 800.00 $ 3,048.00 3 Scarify ground 0.51 Acres $ 150.00 $ 76.50 4 Spillway 1.00 LS $ 10,000.00 $ 10,000.00 a� { -ice [ Y fG.{b.b ...Gru'r,.�i�, 6' r =f" ,r iJ'$� r✓ , �tf`�¢rc r-. , d [ �✓e€i` ar'., B. Phase 2 - 100% mined and 90% reclaimed 1 Final grade and place 6" of topsoil on the entire disturbed area 597 CY $ 1.05 $ 626.85 2 Seed and mulch 4.30 Acres $ 800.00 $ 3,440.00 3 Scarify ground 0.74 Acres $ 150.00 $ 111.00 4 Spillway 1.00 LS $ 10,000.00 $ 10,000.00 YYrl,• .{•'f.'r''f�.ir`i r�i1' IW ';'`'F i'>'rv.� .. rf+3F .r.`��/,�G'��`jj��rA. f�f`�£` i°.vir 1 .�j�,3' yyy,, ��,,,�y;'¢y� C Phase 3 - 100% mined and 90% reclaimed 1 Final grade and place 6" of topsoil on the entire disturbed area 912 CY $1.05 $ 957.60 2 Seed and mulch 5.75 Acres $800.00 $ 4,600.00 3 Scarify ground 1.13 Acres $150.00 $ 169.50 4 Spillway 1.00 LS $ 10 000.00 10,000.00 D. Phase 4 - 100% mined and 90% reclaimed 1 Final grade and place 6" of topsoil on the entire disturbed area 718 CY $ 1.05 $ 753.90 2 Seed and mulch 5.18 Acres $ 800.00 $ 4,144.00 3 Scarify ground 0.89 Acres $ 150.00 $ 133.50 4 Spillway 1.00 LS $ 10,000.00 $ 10,000.00 E. Processing Area. Sand, gravel, concrete and asphalt materials are a commodity and therefore no cost would be incurred for reclamation. In addition, the mobile sales office and scale will have a value that would offset any cost for reclamation. 1 Move serge piles into settling/silt pond 1,000 CY $ 1.05 $ 1,050.00 2 Remove concrete pad for concrete plant 0 CY $ 65.00 $ - 3 Remove concrete pad for asphalt plant 0 CY $ 65.00 $ - 4 Remove concrete pad for recycling plant 0 CY $ 65.00 $ - 5 Remove concrete footings for office 8 CY $ 65.00 $ 520.00 6 Remove concrete base for scale 10 CY $ 65.00 $ 650.00 7 Scarify ground 25.5 Acres $ 150.00 $ 3,825.00 8 Spread 6" topsoil 20,589 CY $ 1.05 $ 21,618.45 9 Seed and Mulch 25.5 Acres $ 800.00 $ 20,400.00 r. ' +v .�rb,'f.�,?.. 1, s?h z'_urr.fw.�vxxr',£✓vy.red l/iro✓L'tT,��'.�>✓Fl,i, d:✓,b'z,.. ; .., r. .:ter F. Slurry Wall @ 20% Installation Cost per DMG Bonding Requirement. Assuming a total of 8580 If of wall, assumed depth of 26' + 3' into base 1 Excavation, Materials and Labor and Dewaterin . 248,820 Face Ft $ 3.50 $ 870,870.00 F �rt r 1' %'f Fr' ,1./1"�' g✓ w'r.•_ri<,'. 6kr y{ £°(b ,9�,. .. � ��;�� Total Disturbance Costs $ 977,426.90 Liability Insurance and Performance Bond (3.07%) - Based on DRMS estimate $ 30,007.01 Contractor Overhead and Profit (10%) - Based on DMG estimate $ 97,742.69 Contractor Mobilization/Demobilization (5%) $ 48,871.35 Engineering Work and/or contract/bid preparation (4.25%) $ 41,540.64 Administration (5%) - Based on DRMS estimate $ 48,871.35 Total $ 1,244,459.93 EXHIBIT N - SOURCE OF LEGAL RIGHT TO ENTER This information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.7 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations. Please refer to the attached legal right -to -enter documents. Bestway Concrete & Aggregates — Lupton Meadows Gravel Mine — MLRB 112 Permit Application Exhibit N -1 October 22, 2016 Gene Wagner, President Bestway Concrete & Aggregates 301 Centennial Drive Milliken, CO 80543 RE: Legal Right to Enter Dear Mr. Wagner: In exchange for good and valuable consideration, in hand paid, Majestic Opportunities, LLC hereby grants to Bestway Concrete & Aggregates the right to enter into the real property situated in the northeast 1/4 Of Section 13, Township 2 North, Range 67 West and the northwest 1/4 of Section 18 Township 2 North, Range 66 West of The 6th P.M., County of Weld, State of Colorado. Refer to Exhibit A for full legal description. You and your officers, employees, contractors, and agents have permission to enter upon the Property for all purposes, including the exploration for gravel, sand and aggregate. We hereby confirm that you have authority and right to execute all documents required to apply for and obtain permits and the like to mine gravel, sand and aggregate on the Property. Following permitting, Bestway Sand & Gravel Aggregates agrees to enter into a Sand, Gravel, and Aggregate Mining Lease to remain in effect until mining activity ceases. The permission granted by this letter shall be effective immediately, and shall remain in effect until superseded by a Sand, Gravel and Aggregate Mining Lease or until 2027, whichever comes first. Majestic Opportunities, LLC B dy Ges STATE OF COLORADO'av,-L 1" COUNTY OF WELD r4 t , �, ss. The foregoing instrument was acknowledged before me on / Owner/Manager of Majestic O po nities LLC. Witness my hand and s al. My commission expires: / ti iv? .( .1�/yl1✓/lull.!ll✓llIlIJJ./^I✓l,/^ oFFlciat seat MICHAEL S HOLDS NOTARY PUBLIC - INDIANA l ALLEN COUNTY 18, tc t%IIl✓IllyComm. xp✓s Nov.021 Notary Public , by Randy Geist, as EXHIBIT O - OWNERS OF RECORD OF AFFECTED LAND (SURFACE AREA) AND OWNERS OF SUBSTANCE TO BE MINED The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.15 of the Colorado Mined Land Reclamation Board Construction Material Rules and regulations: Owners of Surface Area and Owners of Substance to be mined The property and the substance to be mined are owned by Majestic Opportunities, LLC. The following are Mineral Owners: Majestic Opportunities, LLC. 1816 Frontier Road Greeley, CO 80631 Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit 0 -1 EXHIBIT P - MUNICIPALITIES WITHIN Two MILES The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.16 of the Colorado Mined Land Reclamation Board Construction Material Rules and regulations: List any municipalities within two miles of the proposed mining operation and address of the general office: City of Fort Lupton 130 S. McKinley Ave. Fort Lupton, CO 80621 Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine — MLRB 112 Permit Amendment Application Exhibit P -1 EXHIBIT Q - PROOF OF MAILING OF NOTICES TO COUNTY COMMISSIONERS AND CONSERVATION DISTRICT The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.17 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations: U.S. Postal Service - CERTIFIED MAIL' RECEIPT For delivery Information, visit cur vreisi'.www.uar,. cum'. Bestway Concrete & Aggregates —Lupton Meadows Gravel Mine— MLRB 112 Permit Amendment Application Exhibit Q -1 EXHIBIT R - PROOF OF FILING WITH COUNTY CLERK OR RECORDER The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.18 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations. Bestway Concrete & Aggregates — Lupton Meadow Gravel Mine — MLRB 112 Permit Amendment Application Exhibit R - 1 EXHIBIT S - PERMANENT MAN-MADE STRUCTURES The information provided in this Exhibit is intended to satisfy the requirements outlined in Section 6.4.19 of the Colorado Mined Land Reclamation Board Construction Material Rules and Regulations. Where mining will adversely affect the stability of any significant, valuable or permanent man-made structure located within 200 feet of affected land, the applicant may 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) 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 the structure is a utility, the Applicant may supply a notarized letter stating that the mining and reclamation as proposed will have no negative effect on their utility. The known, permanent, man-made structures within 200 feet of the proposed mine areas are listed as follows: o Robert Stahl, residence building o WCR 25 (Weld County Public Works) o Overhead Power Line (Northern Boundary)(Xcel Energy) o Overhead Power Line (Southern Boundary)(Xcel Energy) o Overhead Power Line (Southern Boundary)(WCR 25)(Xcel Energy) o Frankin Stermole Unit 1 Well Head (KP Kaufman) o Windell 4-18A Well Head (Kerr Mcgee) o Windell 1-13 Well Head (Kerr Mcgee) o Windell 5-18 Well Head (Anadarko) o DCP Midstream (gas line owners) o Kerr-Mcgee, Anadarko (well head owners) o KP Kaufman (well head owners) Please refer to the attached engineering stability analysis that shows that structures shall not be damaged by activities occurring at the mining operation. Bestway Concrete & Aggregates - Lupton Meadows Gravel Mine - MLRB 112 Permit Amendment Application Exhibit S -1 October 28, 2016 Mr. Mark Johnson, Compliance Manager Bestway Concrete & Aggregates 301 Centennial Drive Milliken, Colorado 80543 Re: Stability Analysis for the Lupton Meadows Gravel Mine (M -2016- ) Dear Mr. Johnson: This letter has been prepared to address the Mined Land Reclamation Board (MLRB) Construction Materials Rule 6, Section 4, Subsection 19, Exhibit S - Permanent Man -Made Structures (6.4.19, Exhibit S) for the proposed Lupton Meadows Gravel Mine Property Amendment for the Fort Lupton Gravel Mine. This letter describes the project and slope stability calculations carried out to evaluate the minimum distance between the edge of mining and adjacent structures to avoid damage to the structure. The site is located adjacent and west of the South Platte River. The site is within the northeast 1/4, Section 13, Township 2 North, Range 67 West of the 6th Principal Meridian; and also within the northwest' , Section 18, Township 2 North, Range 66 West of the 6th Principal Meridian. The site is generally bounded on the west by an abandoned railroad grade, the north by WCR 22, on the east by the South Platte River, and on the south by the City of Broomfield's Heit Pit. The project is located in Weld County, Colorado, as shown on Figure 1. Bestway Concrete & Aggregates plans to construct a vertical slurry wall around the entire mining area on the Lupton Meadows Gravel Mine Property with a mining slope of 3:1 (horizontal to vertical), as indicated in the DRMS permit application. This report lists proposed safe setbacks for mining from structures within 200 feet of the permitted mining boundary based on stability calculations. Actual setbacks may be greater due to permit limitations, zoning requirements, construction issues, agreements with owners, and extent of economically mineable aggregate or other issues. GEOLOGY The site is located approximately twenty (20) miles east of the foothills of the Colorado Front Range on the western flank of the Denver Structural Basin. The basin is a down warp of sedimentary strata that trends north-northwest, parallel to the mountain front. Based on regional geologic mapping (Colton, 1978), the near surface material in the project area is the Piney Creek Alluvium (Qp). The Piney Creek Alluvium consists of dark -yellowish brown or grayish -orange, clayey to fine sand, and well -stratified silt. The bedrock unit consists mainly of claystone and may contain lenses of siltstone and sandstone. GEOTECHNICAL CONDITIONS The mine site is located on a terrace of the South Platte River. The Piney Creek Alluvium most likely overlies sandstone and claystone bedrock of the Denver Formation. Exploratory borings drilled by Meyers LLC (2016) and Elite Drilling (2016) along the perimeter boundary of the mining area, encountered two to five feet of overburden Mr. Mark Johnson October 28, 2016 Page 2 topsoil and silty clayey sand overlying sand and gravel ranging in depth from 21 feet to the maximum depth drilled of 35 feet. Two to three feet of weathered claystone was encountered overlying non -weathered claystone. From a geotechnical standpoint, the sand and gravel will form the majority of the mine slopes. These soils are generally strong and stable, particularly when dewatered. SITE GROUNDWATER Civil Resources conservatively modeled the groundwater at five feet below the ground surface, based on the geotechnical exploration completed by Meyers LLC and Elite Drilling in 2016. STRUCTURES WITH 200 FEET OF DISTURBED AREAS The known, permanent, man-made structures within 200 feet of the proposed mine areas that are not owned by Bestway Concrete & Aggregates are listed below: • Robert Stahl, residence building • WCR 25 (Weld County Public Works) • Overhead Power Line (Northern Boundary)(Xcel Energy) • Overhead Power Line (Southern Boundary)(Xcel Energy) • Overhead Power Line (Southern Boundary)(WCR 25)(Xcel Energy) • Franklin Stermole Unit 1 Well Head • Production Facilities • Windell 4-18A Well Head • Windell 1-13 Well Head • Windell 5-18 Well Head • Various gaslines (DCP Midstream, Anadarko & KP Kaufman) STABILITY ANALYSES The stability of the proposed mining limits was evaluated at four sections under anticipated loading conditions around the perimeter of the site and is discussed below. The computer program XSTABL was used for the analysis. The method for selecting the critical failure surface for each analyzed loading condition is the following. The Modified Bishop's Method of Analysis is used to find the critical failure surface by randomly searching with 12 termination points and 12 initiation points (144 failure circles) with 7 foot line segments over a broad range of the slope surface. This procedure is repeated over different initiation and termination locations until the most critical factor of safety failure surface is identified. The range is narrowed and 12 initiation points and 12 termination points (144 failure circles) with 7 foot line segments for the final run of 144 circles to determine the lowest factor of safety. Therefore, prior to submitting the final stability run, at least 288 failure surfaces were analyzed to determine the lowest factor of safety. The four cross-section locations were selected to analyze proposed minimum setbacks for stability of structures using appropriate surcharge loads for the mining limits. Cross sections A, B, and D are modeled with a 3:1 (H:V) highwall and include a slurry wall. Cross section C is modeled with two (2) 3:1 slopes forming a highwall but without a slurry wall. All mining slopes are modeled to be no steeper than 3:1 (H:V). The locations are described below and shown on Figure 1. Mr. Mark Johnson October 28, 2016 Page 3 ► Section A -A': This section considers Anadarko's gas line 35' west of the mine highwall. A high phreatic surface was included to model the maximum water surface. ► Section B -B': This section considers the Lupton Bottom Ditch, access road, and overhead power line. A high phreatic surface was included to model the maximum water surface; a surcharge of 250 psf was included to model the dead load from the ditch and power line. ► Section C -C': This section considers Weld County Road 25 bisecting the section with 3:1 (H:V) side slopes on both sides. A surcharge of 250 psf was included to model the live load of the road. ► Section D -D': This section considers the Kerr-McGee Burch 3-1A well located between phase 1 and phase 2. A surcharge of 500 psf was included to model the live load from the access road and dead loads from the well and associated tanks. The material index and engineering strengths assumed in this slope stability report are discussed below. MATERIAL PROPERTIES Overburden The index properties for the insitu clay overburden were based on field testing data and on our engineering judgment; the following parameters have been used to model the overburden. Dry Unit Weight (pct) Moist Unit Weight (pcf) Saturated Unit Weight (pct) Cohesion C' psf Friction Angle 0' ° 103 114 126 50 29 Alluvial Sand and Gravel The sand and gravel is generally medium -grained sand, medium dense, poorly to well graded, and generally clean. The deposit ranges from fine to coarse sand with some silt and occasional rounded to well rounded gravels less than two inches in diameter. The alluvial sand and gravel has been modeled as follows: Dry Unit Weight (pct) Moist Unit Weight (pct) Saturated Unit Weight (pct) Cohesion C' psf Friction Angle 0' ° 119 129 130 0 35 Claystone Bedrock The proposed mine area is generally underlain by claystone bedrock. Claystone is generally a weak bedrock and is often prone to slope instability and the bedrock foundation strength is critical for the highwall stability. For the claystone bedrock, two potential strength conditions were considered. These strength conditions are referred to as: 1) peak strength, and 2) residual strength. Peak strength is the maximum shear strength the claystone bedrock exhibits. The shear strength is made up of both cohesion (diagenetic bonding) and internal friction. Under short-term conditions for unsheared claystone, peak strength governs behavior. If a sheared surface or sheared zone is present within claystone as a result of faulting, slippage between beds due to folding, past shrink -swell behavior, stress relief, or from a landslide, the cohesion along the sheared surface is reduced to zero, and the angle of internal friction is decreased, due to alignment of clay minerals parallel to the shear plane. Under these conditions a claystone exhibits its lowest strength known as residual strength. Residual strength bedrock occurs in discrete zones, parallel with the sheared surface or zone, Mr. Mark Johnson October 28, 2016 Page 4 whereas fully softened strength occurs over a broader area (not used in this modeling). Based on data from other recent jobs and engineering judgment, the residual strength claystone was modeled in a five-foot thick layer (conservative) overlying the peak strength bedrock as follows: Dry Unit Weight (pcf) Moist Unit Weight (pct) Saturated Unit Weight (pcf) Cohesion C' psf Friction Angle V° 116 Peak =126 Residual = 110 Peak =135 Residual =133 Peak =100 Residual = 0 Peak = 25 Residual = 15 Soil-Bentonite Slurry The proposed slurry wall will consist of a mix of the overburden clay and imported bentonite. The resulting mix will produce a non -Newtonian fluid with some shear strength characteristics based on a reduced friction angle of the overlying clay overburden. Based on engineering judgment, we modeled the slurry wall as follows: Dry Unit Weight (pcf) Moist Unit Weight (pcf) Saturated Unit Weight (pcf) Cohesion C' psf Friction Angle 0' ° NA 112 115 0 0 STABILITY ANALYSES RESULTS Stability analysis included three conditions: 1. Proposed dry mining slopes with a slurry wall (dewatered). Setbacks listed in Table 1 indicate the minimal setback from the structure to the mining limits. The setback distance can be increased as needed to address other restrictions. The factor of safety shown below is the minimum factor of safety of the three conditions listed above. TABLE 1 - SLOPE STABILITY RESULTS AND SETBACKS Section Location Critical Structure Modeled Surcharge (psf) Slurry Wall Setback (ft) Factor of Safety AA' Cell 2B Gas Line NA 20 from Gas Line 2.020 BB' Cell 2B Ditch/Utility 250 36 from Ditch 1.943 CC' Cell 1 B/Cell 2B Road 250 NA 2.759 DD' Cell 1B Oil Tank Battery 500 78 from Battery 3.138 The mining setback will be 15 -feet from the high wall to the slurry wall setback plus twenty feet minimum to the property line/easement or structure. CONCLUSIONS The minimum distances proposed in this report will protect the subject structures, however, the actual setbacks may be increased for constructability and maintenance considerations. Mr. Mark Johnson October 28, 2016 Page 5 LIMITATIONS Our review is based on regional geologic mapping, present mining plans, borehole data from Elite Drilling and Meyers LLC, and stability analyses using typical strength parameters for the various strata in the critical sections. Should the mining plans change or subsurface conditions vary from those portrayed in this letter, we should be contacted in order to re-evaluate the potential affects on permanent man-made structures. Stability analyses were run at the structure in question and were not run on failure surfaces closer to the highwall. Note also that surcharge loads due to temporary material stockpiles and overburden berms were not considered in the analysis. Please call with any questions or comments. Sincerely, Civil Resources, LLC Andy Rodriguez, P.E. Civil Engineer Attachments: Figure 1— Slope Stability Cross Sections Locations PLAN Figure 2 — Slope Stability Cross Sections Boring Locations Boring Logs XSTABL Model Output: AA, BB, CC, and DD J:1Bestway-2131GIobal Assets\DRMSIExhibits\Stability Analysis\Stability analysis report - LMGravelMine.d oc Wd 5 G50: L 9L0Z/9Z/OL'OmPAIIWISedolS\S133HS1s8upneithsiessy IegoIJ\C LZ-AeM!sag\:p WAY CONCRETE, INC. MEADOWS GRAVEL MINE SECTIONS O O O O O O kip Lr) cr M N .-I OO CO CO 0o CO CO d- d d- rr d- d- o rIr-'' moo_ O O O O O O O O O O O O O O O O c t0 L11 d M N .-H l0 Ill TT M N *-1 tD LO d" M N CO CO CO CO CO OO CO CO CO OO CO Co CO CO CO co CC d- Cr d- d• d- d- o d• d- d- d- d- d- o d- da - d- d- 5TA: 3+85.35 r EL: 4818.42 \ + 1- + + v \ : BEST CIVIL RES'DURCES, LLC LUPTON FIGURE: 2 \ EL: 4819.20 \ oin \ \ \ u1 f j / in \ \ \ \ DATE: October 2016 m n m \ -. m MI I \ \ STA: 2+26.29 (-EL: 4847.51 STA: 2+39.74 EL: 4847.65 - " ' 2+50 3+00 STA: 2+00.00 - EL' 4849.01 \ \ \ \ r / 2+50 3+00 STA: 2+54.10 EL: 4856.00 TANK BATTERY STA: 2+63.65 STA: 2+91.54 F EL: 4857.00 EL: 4857.00 I I I / \ \ \ \ \ \ \ \ O / N. 7, I/ / I / / \ \ \ \ \ O J \\/ v M J f I I o8 \ v + M rvqi \ Ai, 7. \ .w / ^x \ \ AD POWER I I 1 {moo Al \ \ \ it) an STA: 2+40.49 EL: 4847.00 EL: 4851.00 '2 Nw \ \ in STA: 2+26.29 EL: 4818.16 \ \ of EL: 485 'GI] <' Gd e-'-.• Vim\ <''.\ \ + UNPAVED K r STA: 2+36. I STA: 2+27.61 f' EL: 4850.00 \ \ / uG ) W STA: 2+14.95 \ \ \8, N \ Gd \ \ \ g I w \ Hp STA' 2+05 27 EL: 4847.16 • STA: 2+10.05 STA: 2+23.29 ___ _ E1: 4818.16 Gd \ \ \ \ FN.__ STA: 1+97.82 VED ROAD S $ 1 r� w / I I l ,i'w m 11. 1 Xi t.a \ \ \ V 4 a- N.. I 1 1 1 mg i STA: 2+05.11 EL: 4849.00 -N.. -_ STA: 1+99.63 EL: 4849.96 ! g'. :4^W G STA: 2+11.95 JAI EL: 4822.92 a EL: 4818. i I I I I 00 0+50 1+00 1+50 STA: EL1 QE \ \m+,g \ \ \ \ a G EL:I 00 0+50 1+00 1+50 G EL: . I I I I 00 0+50 1+00 1+150 nc^ o0 u I I I 00 0+50 1+I00 1+50 \ \ ---.. EL: 4847.04 /1 / \ \\ AA! F iu IEH G EL: 4821.19 - \1 \ \ r o" G € \ \1 STA: 0+56.15 -EL: 482183 \ \1 om / EL: 48221 lD lf1 d- M N •-1 l0 Ul d' MN *-I tD Ln d- M N •-I lD L(1 d- M N •--1 CO CO CO CO CO CO CO CO OO CO OO CO CO CO CO CO OO CO CO CO CO OO CO OO 'Crd- d- d- d- d- d- d' d' d- d' d" d- d' d- d- d- d' d- d' d- d- d- d Rd 9E:90:l 910Z/9Z/0l '6MP'Ill NelSadoISIS133HSIs6ulmeJalslassy Iegol91EIZ-XeM1sa9Ff Wd 90:91:19LOd/9Z/Ol'6mps6ulmejPllemlumIs1S133HS1s6wmeJ01sl9ssy Iego1o1ELL•,emise9Gf Wd 4Z 71 l 910Z/8 /O '6mp s6ulmwPllemkunls1S133HS1s6uimeidlslassy legoiO\Eiz-6emisa9Gf FLG-AA 9-30-16 14:27 200 _ 160 _ 40 _ 0 FT LUPTON GRAVEL MINE 10 most critical surfaces, MINIMUM BISHOP FOS = 2.020 - --� 70 110 150 190 230 270 310 350 390 X-AXIS (feet) FLG-BB 9-30-16 14:27 FT LUPTON GRAVEL MINE 10 most critical surfaces, MINIMUM BISHOP FOS = 1.943 0 40 80 120 160 200 X—AXIS (feet) 240 280 320 FLG-CC 9-30-16 14:27 250 _ 200 _ 50 _ 0 0 FT LUPTON GRAVEL MINE 10 most critical surfaces, MINIMUM BISHOP FOS = 2.759 50 100 150 200 250 X-AXIS (feet) FLG-DD 9-30-16 11:34 p � I 300 350 400 FT LUPTON GRAVEL MINE 10 most critical surfaces, MINIMUM BISHOP FOS = 3.138 0 40 80 120 160 200 X—AXIS (feet) 240 280 320 FLG-AA.OPT.txt XSTABL File: FLG-AA 10-03-16 8:09 ****************************************** * XSTABL * * Slope Stability Analysis * using the * Method of Slices * * Copyright (C) 1992 - 2002 * Interactive Software Designs, Inc. * Moscow, ID 83843, U.S.A. * * All Rights Reserved * * Ver. 5.206 96 - 1952 ****************************************** Problem Description : FT LUPTON GRAVEL MINE SEGMENT BOUNDARY COORDINATES 11 SURFACE boundary segments Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 138.6 46.0 181.1 45.0 1 2 181.1 45.0 189.0 45.0 1 3 189.0 45.0 192.6 46.0 1 4 192.6 46.0 203.3 47.2 1 5 203.3 47.2 210.1 47.3 1 6 210.1 47.3 223.3 47.5 1 7 223.3 47.5 226.3 47.5 5 8 226.3 47.5 239.7 47.7 1 9 239.7 47.7 251.7 43.7 1 10 251.7 43.7 328.3 18.3 2 11 328.3 18.3 385.4 18.4 3 21 SUBSURFACE boundary segments Page 1 FLG-AA.OPT.txt Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 223.3 47.5 223.4 43.5 1 2 226.3 47.5 226.4 43.5 5 3 138.6 42.0 181.1 41.0 2 4 181.1 41.0 189.0 41.0 2 5 189.0 41.0 192.6 42.0 2 6 192.6 42.0 203.3 43.2 2 7 203.3 43.2 210.1 43.3 2 8 210.1 43.3 223.4 43.5 2 9 226.4 43.5 239.7 43.7 2 10 239.7 43.7 251.7 43.7 2 11 223.4 43.5 223.5 18.2 2 12 226.4 43.5 226.5 18.2 5 13 104.0 18.0 223.5 18.2 3 14 226.5 18.2 328.3 18.3 3 15 223.5 18.2 223.6 15.2 3 16 226.5 18.2 226.6 15.2 5 17 226.7 15.2 385.4 15.4 4 18 104.0 15.2 223.7 15.2 4 19 223.6 15.1 223.7 14.2 4 20 226.6 15.1 226.7 14.2 5 21 223.7 14.2 226.7 14.2 4 ISOTROPIC Soil Parameters 5 Soil unit(s) specified Soil Unit Weight Cohesion Friction Pore Pressure Water Unit Moist Sat. Intercept Angle Parameter Constant Surface No. (pcf) (pcf) (psf) (deg) Ru (psf) No. 1 114.0 126.0 50.0 29.00 .000 .0 1 2 129.0 130.0 .0 35.00 .000 .0 1 3 110.0 133.0 .0 15.00 .000 .0 1 4 126.0 135.0 100.0 25.00 .000 .0 1 5 112.0 115.0 .0 .00 .000 .0 1 1 Water surface(s) have been specified Unit weight of water = 62.40 (pcf) Page 2 FLG-AA.OPT.txt Water Surface No. 1 specified by 11 coordinate points ********************************** PHREATIC SURFACE, ********************************** Point x -water y -water No. (ft) (ft) 1 138.60 41.50 2 181.10 40.50 3 189.00 40.50 4 192.60 41.50 5 203.30 42.70 6 210.10 42.80 7 223.30 43.00 8 223.40 18.20 9 226.30 18.20 10 328.30 18.30 11 385.40 18.40 BOUNDARY LOADS 1 load(s) specified Load x -left x -right Intensity Direction No. (ft) (ft) (psf) (deg) 1 204.0 205.0 50.0 90.0 NOTE - Intensity is specified as a uniformly distributed force acting on a HORIZONTALLY projected surface. A critical failure surface searching method, using a random technique for generating CIRCULAR surfaces has been specified. 144 trial surfaces will be generated and analyzed. Page 3 FLG-AA.OPT.txt 12 Surfaces initiate from each of 12 points equally spaced along the ground surface between x = 328.3 ft and x = 378.3 ft Each surface terminates between x = and x = 199.8 ft 209.8 ft Unless further limitations were imposed, the minimum elevation at which a surface extends is y = 2.0 ft 7.0 ft line segments define each trial failure surface. ANGULAR RESTRICTIONS The first segment of each failure surface will be inclined within the angular range defined by : Lower angular limit := -45.0 degrees Upper angular limit := (slope angle - 5.0) degrees Factors of safety have been calculated by the : * * * * * SIMPLIFIED BISHOP METHOD The most critical circular failure surface is specified by 25 coordinate points Point x -surf y -surf No. (ft) (ft) 1 360.12 18.36 2 354.01 14.94 3 347.70 11.90 4 341.22 9.26 5 334.59 7.01 Page 4 FLG-AA.OPT.txt 6 327.84 5.17 7 320.98 3.75 8 314.06 2.74 9 307.08 2.17 10 300.08 2.01 11 293.09 2.29 12 286.12 2.99 13 279.21 4.11 14 272.38 5.66 15 265.66 7.61 16 259.07 9.97 17 252.64 12.73 18 246.39 15.88 19 240.34 19.40 20 234.52 23.29 21 228.94 27.52 22 223.63 32.08 23 218.61 36.96 24 213.90 42.14 25 209.75 47.29 **** Simplified BISHOP FOS = 2.020 **** The following is a summary of the TEN most critical surfaces Problem Description : FT LUPTON GRAVEL MINE FOS Circle Center Radius Initial Terminal Resisting (BISHOP) x-coord y-coord x-coord x-coord Moment (ft) (ft) (ft) (ft) (ft) (ft -lb) 1. 2.020 301.08 116.78 114.77 360.12 209.75 1.910E+07 2. 2.023 298.31 121.67 116.00 351.03 209.36 1.733E+07 3. 2.025 294.94 113.90 108.58 346.48 209.24 1.636E+07 4. 2.026 292.68 105.86 102.74 346.48 208.33 1.653E+07 5. 2.030 291.88 101.98 99.90 346.48 208.36 1.651E+07 6. 2.031 300.55 128.51 123.14 355.57 208.03 1.881E+07 7. 2.033 294.62 120.21 116.44 351.03 203.95 1.906E+07 8. 2.034 304.13 126.32 123.77 364.66 208.95 2.051E+07 9. 2.037 299.03 128.74 126.16 360.12 202.85 2.167E+07 10. 2.038 291.92 113.77 109.94 346.48 204.48 1.782E+07 Page 5 FLG-BB.OPT.txt XSTABL File: FLG-BB 9-30-16 14:27 ****************************************** * XSTABL * * Slope Stability Analysis * using the * Method of Slices * * Copyright (C) 1992 - 2002 * Interactive Software Designs, Inc. * Moscow, ID 83843, U.S.A. * * All Rights Reserved * * Ver. 5.206 96 - 1952 ****************************************** Problem Description : FT LUPTON GRAVEL MINE SEGMENT BOUNDARY COORDINATES 12 SURFACE boundary segments Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 .0 20.6 56.6 20.9 3 2 56.6 20.9 101.9 21.2 3 3 101.9 21.2 173.2 45.0 2 4 173.2 45.0 185.2 49.0 1 5 185.2 49.0 194.8 49.0 1 6 194.8 49.0 197.8 49.0 5 7 197.8 49.0 200.0 49.0 1 8 200.0 49.0 228.1 50.0 1 9 228.1 50.0 232.2 51.0 1 10 232.2 51.0 233.3 51.0 1 11 233.3 51.0 235.6 50.0 1 12 235.6 50.0 257.8 50.0 1 21 SUBSURFACE boundary segments Page 1 FLG-BB.OPT.txt Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 194.8 49.0 194.9 45.0 1 2 197.8 49.0 197.9 45.0 5 3 173.2 45.0 194.9 45.0 2 4 197.9 45.0 200.0 45.0 2 5 200.0 45.0 228.1 46.0 2 6 228.1 46.0 232.2 47.0 2 7 232.2 47.0 233.3 47.0 2 8 233.3 47.0 235.6 46.0 2 9 194.9 45.0 195.0 21.9 2 10 197.9 45.0 198.0 21.9 5 11 101.9 21.2 195.0 21.9 3 12 198.0 21.9 286.8 22.5 3 13 195.0 21.9 195.1 18.9 3 14 198.0 21.9 198.1 18.9 5 15 .0 17.6 56.6 17.9 4 16 56.6 17.9 101.9 18.2 4 17 101.9 18.2 195.1 18.9 4 18 198.1 18.9 286.8 19.5 4 19 195.1 18.9 195.2 17.9 4 20 198.1 18.9 198.2 17.9 5 21 195.2 17.9 198.2 17.9 4 ISOTROPIC Soil Parameters 5 Soil unit(s) specified Soil Unit Weight Cohesion Friction Pore Pressure Water Unit Moist Sat. Intercept Angle Parameter Constant Surface No. (pcf) (pcf) (psf) (deg) Ru (psf) No. 1 114.0 126.0 50.0 29.00 .000 .0 1 2 129.0 130.0 .0 35.00 .000 .0 1 3 110.0 133.0 .0 15.00 .000 .0 1 4 126.0 135.0 100.0 25.00 .000 .0 1 5 112.0 115.0 .0 .00 .000 .0 1 1 Water surface(s) have been specified Unit weight of water = 62.40 (pcf) Page 2 FLG-BB.OPT.txt Water Surface No. 1 specified by 8 coordinate points ********************************** PHREATIC SURFACE, ********************************** Point x -water y -water No. (ft) (ft) 1 56.60 20.90 2 101.90 21.20 3 194.80 21.90 4 197.80 21.90 5 197.90 44.50 6 228.10 49.00 7 235.60 49.00 8 240.00 45.50 BOUNDARY LOADS 1 load(s) specified Load x -left x -right Intensity Direction No. (ft) (ft) (psf) (deg) 1 228.1 236.6 250.0 90.0 NOTE - Intensity is specified as a uniformly distributed force acting on a HORIZONTALLY projected surface. A critical failure surface searching method, using a random technique for generating CIRCULAR surfaces has been specified. 144 trial surfaces will be generated and analyzed. 12 Surfaces initiate from each of 12 points equally spaced along the ground surface between x = 51.9 ft Page 3 FLG-BB.OPT.txt and x = 101.9 ft Each surface terminates between x = 227.8 ft and x = 237.8 ft Unless further limitations were imposed, the minimum elevation at which a surface extends is y = .0 ft 7.0 ft line segments define each trial failure surface. ANGULAR RESTRICTIONS The first segment of each failure surface will be inclined within the angular range defined by : Lower angular limit := -45.0 degrees Upper angular limit := (slope angle - 5.0) degrees Factors of safety have been calculated by the : * * * * * SIMPLIFIED BISHOP METHOD The most critical circular failure surface is specified by 24 coordinate points Point x -surf y -surf No. (ft) (ft) 1 83.72 21.08 2 90.06 18.11 3 96.56 15.53 4 103.21 13.32 5 109.97 11.51 6 116.82 10.10 7 123.75 9.09 Page 4 FLG-BB.OPT.txt 8 130.72 8.48 9 137.72 8.29 10 144.72 8.50 11 151.69 9.13 12 158.61 10.16 13 165.47 11.60 14 172.22 13.43 15 178.86 15.65 16 185.35 18.26 17 191.69 21.25 18 197.83 24.60 19 203.77 28.30 20 209.48 32.35 21 214.95 36.72 22 220.15 41.41 23 225.07 46.39 24 228.28 50.04 **** Simplified BISHOP FOS = 1.943 **** The following is a summary of the TEN most critical surfaces Problem Description : FT LUPTON GRAVEL MINE FOS Circle Center Radius Initial Terminal Resisting (BISHOP) x-coord y-coord x-coord x-coord Moment (ft) (ft) (ft) (ft) (ft) (ft -lb) 1. 1.943 137.53 127.90 119.61 83.72 228.28 1.736E+07 2. 1.946 135.26 134.76 126.79 79.17 229.88 1.880E+07 3. 1.958 129.86 136.63 132.35 65.54 230.38 2.226E+07 4. 1.961 128.78 146.32 140.41 65.54 231.75 2.262E+07 5. 1.966 132.60 146.51 138.23 74.63 232.47 2.071E+07 6. 1.967 125.18 149.14 143.38 60.99 228.95 2.308E+07 7. 1.980 130.41 155.28 147.22 70.08 233.98 2.256E+07 8. 1.982 138.13 116.37 112.08 79.17 228.50 1.866E+07 9. 1.982 125.75 154.81 148.72 60.99 232.18 2.408E+07 10. 1.983 138.35 141.80 132.50 83.72 234.36 1.938E+07 * * * END OF FILE Page 5 FLG-CC.OPT.txt XSTABL File: FLG-CC 9-30-16 14:27 ****************************************** * X S TAB L * * Slope Stability Analysis * using the * Method of Slices * * Copyright (C) 1992 - 2002 * Interactive Software Designs, Inc. * Moscow, ID 83843, U.S.A. * * All Rights Reserved * * Ver. 5.206 96 - 1952 ****************************************** Problem Description : FT LUPTON GRAVEL MINE SEGMENT BOUNDARY COORDINATES 9 SURFACE boundary segments Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 .0 18.2 69.2 18.4 3 2 69.2 18.4 143.2 43.0 2 3 143.2 43.0 155.2 47.0 1 4 155.2 47.0 189.9 47.0 1 5 189.9 47.0 196.2 48.0 1 6 196.2 48.0 200.5 48.0 1 7 200.5 48.0 207.5 47.0 1 8 207.5 47.0 223.6 47.1 1 9 223.6 47.1 240.5 47.0 1 10 SUBSURFACE boundary segments Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment Page 1 FLG-CC.OPT.txt 1 143.2 43.0 155.2 43.0 2 2 155.2 43.0 189.9 43.0 2 3 189.9 43.0 196.2 44.0 2 4 196.2 44.0 200.5 44.0 2 5 200.5 44.0 207.5 43.0 2 6 207.5 43.0 223.6 43.1 2 7 223.6 43.1 240.5 43.0 2 8 69.2 18.4 381.4 19.2 3 9 .0 15.2 69.2 15.4 4 10 69.2 15.4 381.4 16.2 4 ISOTROPIC Soil Parameters 5 Soil unit(s) specified Soil Unit Weight Cohesion Friction Pore Pressure Water Unit Moist Sat. Intercept Angle Parameter Constant Surface No. (pcf) (pcf) (psf) (deg) Ru (psf) No. 1 114.0 126.0 50.0 29.00 .000 .0 1 2 129.0 130.0 .0 35.00 .000 .0 1 3 110.0 133.0 .0 15.00 .000 .0 1 4 126.0 135.0 100.0 25.00 .000 .0 1 5 112.0 115.0 .0 .00 .000 .0 1 BOUNDARY LOADS 1 load(s) specified Load x -left x -right Intensity Direction No. (ft) (ft) (psf) (deg) 1 212.9 236.3 250.0 90.0 NOTE - Intensity is specified as a uniformly distributed force acting on a HORIZONTALLY projected surface. Page 2 FLG-CC.OPT.txt A critical failure surface searching method, using a random technique for generating CIRCULAR surfaces has been specified. 144 trial surfaces will be generated and analyzed. 12 Surfaces initiate from each of 12 points equally spaced along the ground surface between x = 19.1 ft and x = 69.2 ft Each surface terminates between x = and x = 212.9 ft 236.3 ft Unless further limitations were imposed, the minimum elevation at which a surface extends is y = .0 ft 7.0 ft line segments define each trial failure surface. ANGULAR RESTRICTIONS The first segment of each failure surface will be inclined within the angular range defined by : Lower angular limit := -45.0 degrees Upper angular limit := (slope angle - 5.0) degrees Factors of safety have been calculated by the : * * * * * SIMPLIFIED BISHOP METHOD The most critical circular failure surface is specified by 24 coordinate points Point x -surf y -surf Page 3 FLG-CC.OPT.txt No. (ft) (ft) 1 64.65 18.39 2 71.55 17.24 3 78.49 16.32 4 85.46 15.64 5 92.44 15.19 6 99.44 14.97 7 106.44 14.99 8 113.43 15.24 9 120.42 15.72 10 127.38 16.44 11 134.32 17.39 12 141.22 18.57 13 148.07 19.99 14 154.88 21.63 15 161.62 23.49 16 168.30 25.59 17 174.91 27.90 18 181.43 30.44 19 187.87 33.19 20 194.21 36.15 21 200.45 39.33 22 206.58 42.71 23 212.59 46.29 24 213.75 47.04 **** Simplified BISHOP FOS = 2.759 **** The following is a summary of the TEN most critical surfaces Problem Description : FT LUPTON GRAVEL MINE FOS Circle Center Radius Initial Terminal Resisting (BISHOP) x-coord y-coord x-coord x-coord Moment (ft) (ft) (ft) (ft) (ft) (ft -lb) 1. 2.759 102.43 224.20 209.25 64.65 213.75 3.168E+07 2. 2.800 83.53 302.59 286.67 46.43 213.37 3.982E+07 3. 2.822 102.64 160.94 158.84 32.76 213.31 4.121E+07 4. 2.837 101.67 220.68 207.51 55.54 215.27 3.547E+07 5. 2.849 93.10 207.08 201.18 23.65 214.97 4.662E+07 6. 2.855 100.82 162.62 161.58 28.21 213.67 4.378E+07 Page 4 7. 2.880 112.73 8. 2.885 94.82 9. 2.885 101.72 10. 2.888 116.39 FLG-CC.OPT.txt 133.71 133.07 228.40 219.08 160.89 160.43 135.56 132.06 * * * END OF FILE Page 5 46.43 32.76 28.21 55.54 213.65 3.576E+07 217.71 4.516E+07 214.73 4.469E+07 214.35 3.229E+07 FLG-AA.OPT.txt * * * END OF FILE * * * Page 6 FLG-DD.OPT.txt XSTABL File: FLG-DD 9-30-16 11:34 ****************************************** * XSTABL * * * * Slope Stability Analysis * * using the * * Method of Slices * * * * Copyright (C) 1992 - 2002 * * Interactive Software Designs, Inc. * * Moscow, ID 83843, U.S.A. * * * * All Rights Reserved * * * * Ver. 5.206 96 - 1952 * ****************************************** Problem Description : FT LUPTON GRAVEL MINE SEGMENT BOUNDARY COORDINATES 16 SURFACE boundary segments Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 .0 22.8 56.2 22.8 3 2 56.2 22.8 126.5 45.2 2 3 126.5 45.2 138.8 49.2 1 4 138.8 49.2 180.8 49.1 1 5 180.8 49.1 199.6 50.0 1 6 199.6 50.0 202.6 48.0 1 7 202.6 48.0 203.0 48.0 1 8 203.0 48.0 205.1 49.0 1 9 205.1 49.0 212.0 49.3 1 10 212.0 49.3 215.0 49.4 5 11 215.0 49.4 227.6 50.0 1 12 227.6 50.0 244.7 51.0 1 13 244.7 51.0 254.1 56.0 1 14 254.1 56.0 260.2 56.0 1 15 260.2 56.0 263.7 57.0 1 Page 1 FLG-DD.OPT.txt 16 263.7 57.0 298.1 57.0 1 19 SUBSURFACE boundary segments Segment x -left y -left x -right y -right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 212.0 49.3 212.1 45.3 1 2 215.0 49.4 215.1 45.4 5 3 126.8 45.2 138.8 45.2 2 4 138.8 45.2 180.8 45.1 2 5 180.8 45.1 199.6 46.0 2 6 199.6 46.0 205.1 45.0 2 7 205.1 45.0 212.1 45.3 2 8 215.1 45.4 227.6 46.0 2 9 212.1 45.3 212.2 22.9 2 10 215.1 45.4 215.2 22.9 5 11 56.2 22.8 212.2 22.9 3 12 215.2 22.9 261.2 22.9 3 13 212.2 22.9 212.3 19.9 3 14 215.2 22.9 215.3 19.9 5 15 .0 19.9 212.3 19.9 4 16 215.3 19.9 261.2 19.9 4 17 212.3 19.9 212.4 18.9 4 18 215.3 19.9 215.4 18.9 5 19 212.4 18.9 215.4 18.9 4 ISOTROPIC Soil Parameters 5 Soil unit(s) specified Soil Unit Weight Cohesion Friction Pore Pressure Water Unit Moist Sat. Intercept Angle Parameter Constant Surface No. (pcf) (pcf) (psf) (deg) Ru (psf) No. 1 114.0 126.0 50.0 29.00 .000 .0 1 2 129.0 130.0 .0 35.00 .000 .0 1 3 110.0 133.0 .0 15.00 .000 .0 1 4 126.0 135.0 100.0 25.00 .000 .0 1 5 112.0 115.0 .0 .00 .000 .0 1 1 Water surface(s) have been specified Page 2 FLG-DD.OPT.txt Unit weight of water = 62.40 (pcf) Water Surface No. 1 specified by 7 coordinate points ********************************** PHREATIC SURFACE, ********************************** Point x -water y -water No. (ft) (ft) 1 8.60 22.80 2 56.20 22.80 3 212.00 22.90 4 215.00 22.90 5 215.10 44.90 6 244.70 46.50 7 298.10 46.50 BOUNDARY LOADS 1 load(s) specified Load x -left x -right Intensity Direction No. (ft) (ft) (psf) (deg) 1 286.5 296.5 500.0 90.0 NOTE - Intensity is specified as a uniformly distributed force acting on a HORIZONTALLY projected surface. A critical failure surface searching method, using a random technique for generating CIRCULAR surfaces has been specified. 144 trial surfaces will be generated and analyzed. 12 Surfaces initiate from each of 12 points equally spaced Page 3 FLG-DD.OPT.txt along the ground surface between x = and x = Each surface terminates between x = and x = 6.2 ft 56.2 ft 286.5 ft 296.5 ft Unless further limitations were imposed, the minimum elevation at which a surface extends is y = .0 ft 7.0 ft line segments define each trial failure surface. ANGULAR RESTRICTIONS The first segment of each failure surface will be inclined within the angular range defined by : Lower angular limit := -45.0 degrees Upper angular limit := (slope angle - 5.0) degrees Factors of safety have been calculated by the : * * * * * SIMPLIFIED BISHOP METHOD * * * * * The most critical circular failure surface is specified by 43 coordinate points Point x -surf y -surf No. (ft) (ft) 1 10.75 22.80 2 17.20 20.08 3 23.71 17.53 4 30.29 15.14 5 36.93 12.92 6 43.63 10.88 Page 4 FLG-DD.OPT.txt 7 50.37 9.01 8 57.16 7.31 9 64.00 5.79 10 70.87 4.44 11 77.77 3.27 12 84.70 2.28 13 91.65 1.47 14 98.62 .83 15 105.61 .38 16 112.60 .10 17 119.60 .00 18 126.60 .09 19 133.59 .35 20 140.58 .80 21 147.55 1.42 22 154.51 2.22 23 161.44 3.20 24 168.34 4.36 25 175.21 5.69 26 182.05 7.21 27 188.84 8.89 28 195.59 10.75 29 202.29 12.79 30 208.93 14.99 31 215.52 17.37 32 222.04 19.91 33 228.49 22.62 34 234.87 25.49 35 241.18 28.53 36 247.41 31.73 37 253.55 35.09 38 259.60 38.60 39 265.56 42.27 40 271.43 46.09 41 277.19 50.06 42 282.85 54.18 43 286.53 57.00 **** Simplified BISHOP FOS = 3.138 **** The following is a summary of the TEN most critical surfaces Problem Description : FT LUPTON GRAVEL MINE Page 5 FLG-DD.OPT.txt FOS Circle Center Radius Initial Terminal Resisting (BISHOP) x-coord y-coord x-coord x-coord Moment (ft) (ft) (ft) (ft) (ft) (ft -lb) 1. 3.138 119.83 272.38 272.38 10.75 286.53 1.030E+08 2. 3.168 120.34 276.97 276.79 10.75 288.33 1.051E+08 3. 3.183 125.44 256.36 256.32 19.84 286.51 9.625E+07 4. 3.193 121.87 287.70 283.87 19.84 287.26 9.818E+07 5. 3.199 119.99 287.22 286.10 10.75 289.85 1.073E+08 6. 3.237 109.90 355.31 348.30 6.20 289.70 1.141E+08 7. 3.274 127.44 266.89 266.75 19.84 292.05 1.025E+08 8. 3.289 118.24 321.48 317.44 10.75 293.76 1.135E+08 9. 3.293 115.88 332.79 328.82 6.20 294.93 1.185E+08 10. 3.294 127.38 274.95 270.69 28.93 287.90 9.337E+07 * * * END OF FILE Page 6 GROUNDWATER MEMO Bestway Concrete & Aggregates — Lupton Meadow Gravel Mine — MLRB 112 Permit Amendment Application October 20, 2016 Mr. Mark Johnson Bestway Concrete & Aggregates 301 Centennial Drive Milliken, Co 80543 RE: Lupton Meadows Gravel Mine - Groundwater Memo and Groundwater Mitigation Plan Dear Mr. Johnson: The purpose of this memo is to discuss the groundwater regime in the vicinity of the proposed Lupton Meadow Gravel Mine (Site) and the groundwater changes that could arise from slurry lining and gravel mining at the proposed Lupton Meadow Gravel Mine. This memo includes research base on prior work and submittals by Wright Water Engineers (WWE) in reference to the Heit Gravel Mine: 1. Groundwater Evaluation For Proposed Heit Aggregate Operation, Weld County, Colorado, Prevention Plan, dated March 2003. (WWE) 2. Groundwater Monitoring for Heit Aggregate Resource Operation, Weld County, Aquatic and Wetland Nursery and Coyle Properties, dated July 2003. (WWE) 3. Heit Pit Groundwater Monitoring Data, March 2004 through January 2007. 4. Monitoring Well boring Logs from March 2, 3, and 11, 2004. (WWE) Existing Groundwater Parameters The Lupton Meadow Gravel Mine area prevailing groundwater flow direction is north-northeast toward the South Platte River. Locally the groundwater levels and flow directions are also impacted by; 1) the groundwater "shadow effect" from the slurry walled Koenig Pit and Heit Pits immediately to the south of the Site and Weld County Road (WCR) 20, and 2) the Little Dry Creek drainage and South Platte River which roughly parallels the west and east side of the Site at distances ranging from 230 feet to 450 feet to the low flow channel. The Site if bounded by two major drainage ways, the South Platte to the east and Little Dry Creek to the west. These two drainages act as natural drains that maintain groundwater elevation around approximately 4845.25 to 4840.62 at the South Platte and 4844.78 to 4843.0 at Little Dry Creek from south to north respectively. This is approximately 5.5 feet to 8 feet below grade. These elevations were obtained from the nearest monitoring wells adjacent to the South Platte and Little Dry Creek. Existing Monitoring Wells Three monitoring wells were drilled along the perimeter of the Site. Two existing monitoring wells (MW -3 & MW -7) associated with the initial groundwater investigation in 2003 have been used and monitored the past three months. Historic data from monitoring in 2003/2004 has also been included in the Table below and is attached. Comparing wells with close proximity to each other or identical wells from current data to historic data (i.e. comparing CR-3 to MW -6 for example shows a decrease of 0.35 feet) show a range of 0.35 feet decrease in groundwater to a 0.60 foot increase. Page 2 Mr. Mark Johnson October 20, 2016 Fort Lupton Gravel Mine Historic Comparison of Water Levels (el.) Well Average Level (2005) Average Level (2016) CR-3 4842.52 CR-4 4845.09 CR-5 4842.77 MW -3 4845.87 4845.66 MW -5 4844.86 MW -6 4842.17 MW -7 4841.33 4840.735 This confirms that the South Platte River and Dry Creek are not significantly effected by the slurry wall(s) to the south (Heit Pit & Koenig Pit) and maintain their gradients and water levels in the vicinity of the Site very closely to historic values Slurry Wall & Mining The proposed slurry wall around the Site could cause "mounding" (increase in groundwater elevation) of groundwater on the upstream side (west) of the proposed slurry wall and potential "shadow effect" (reduction in groundwater level) on the downstream side (north and east) of the Site. The slurry wall disconnects the Site from the surrounding groundwater and during mining there is no effect due to dewatering. As discussed in the Existing Monitoring Well Section above the Site is bound on the West and East by Little Dry Creek and the South Platte River which act as groundwater controls. Potentially Impacted Properties The following properties are located within the proximity of the proposed Site and all but the Stahl Property are located outside of the 600 foot spacing requirement per the Division of Water Resources.. Stahl Property: The current house and winery facility are located approximately 300 feet south of the east side of the Site. There are two deep wells located on the property that would not be affected by the Site activities. The Stahl Property is located at elevation 4858 and has no basement and the finished floor is approximately 12 feet above groundwater level. Wagner Property: The current house and well are located west of the west side of the Site and the Wagner Property is on the upper alluvial bench above the Site at elevation 4852 containing one building built in 1971 with a basement. The well is 2500 feet from the proposed mining and 2000 feet from Little Dry Creek. Little Dry Creek will control the groundwater elevation at this property to approximately elevation 4843.0 plus some minor gradient. Temmer Property: The current house and well are located approximate 1300 feet north of the north side of the Site. The Temmer Property is located at elevation 4843 and has no basement. The current well is a deep well into the Larimer Fox Hills aquifer and will not be affected by the proposed construction activities. Page 3 Mr, Mark Johnson October 20, 2016 Mitigation Measures The groundwater regime and surrounding properties have very little exposure to negative groundwater impacts. The Stahl property to southeast of the pit is the closest and both permitted wells are deep wells which will not be impacted. The property is also on the shadow side and a groundwater rise will not occur. The Tremmer Property to the north is a significant distance away from the Site and has a deep well which will not be impacted. The property is on the shadow side of the Site and will not affect the existing homes. The Wagner Poetry to the west is again a significant distance away from the property and is on the west side of Little Dry Creek. From engineering experience, Little Dry Creek will be a constant elevation fluctuating seasonally but not changing its water surface elevations. The Site's construction activities will not affect the Wagner property. Conclusion The potential for groundwater upslope mounding due to the construction of the slurry wall is limited due to the existing slurry wall of the Heit and Koenig Pit to the south, Little Dry Creek drainage to the west and the South Platte River to the north. The potential effects from the proposed slurry wall will have minimal impact on the surrounding groundwater regime as the natural hydrologic controls maintain groundwater levels at close to historic groundwater levels as presented in the attached tables and discussed in this memo. Please call if you have any questions. Sincerely, CIVIL RESOURCES, LLC Andy Rodriguez, P.E. End: Figures 1 - General Location Map Figure 2 - Mining Plan with Property Ownership Monitoring Well Data Historic Monitoring Well Location Figure J:1Bestway-2131GIobal Assets\groundwaterlgrounwater-memo LMGM.doc KOENIG PIT MINING BOUNDARY HEIT PIT NORTH 0 1,000 2,000 ( IN FEET) : CIVIL RESVURCES, LLC BESTWAY CONCRETE, INC. LUPTON MEADOWS GRAVEL MINE DATE: October, 2016 FIGURE: 1 INDEX MAP TREMMER PROPERTY S\DRMS-APP-FIGS.dwg, 10/28/2016 12 -213\Global A MINING BOUNDARY 600' PERIMETER SLURRY WALL STAHL PROPERTY L7 CIVIL RES'aURCES, LLC BESTWAY CONCRETE, INC. LUPTON MEADOWS GRAVEL MINE DATE: October, 2016 FIGURE: 2 MONITORING WELLS & MINING CONDITION er C' 0 a 0 Z > O J ce 32 Lu lC F cc cc V 0 /0 Z g o ce C7 L; -c Z N • 85 W E 4J N U' Z 0 0 J 0 Coordinates Property I Top PVC El, ft 4853.50 4848.60 O O Co - Co - C) M en Co R 4849.30 -. 4846.20 4845.40 4846.70 ni -- CD CO CD u, 77 C co co 7 c0 Co O .. ,r 0 C, c y 3188268.8 3187960.6 3186573.1 3186758.7 3185702.9 CO Northing 1294200.9 1296657.0 1295981.1 CoUi rn 1296517.1 CV Screened Interval O O O Total Depth ct c'J N M Date Drilled 7/26/2016 7/26/2016 7/26/2016 O WWEMW 3 WWEMW 7 CR3 CR4 CR5 15 U a O O F E 0 r 0. en Ce 0 U 4842.49 en 0 v op ..a - CR4 c0 n v v Co v 4845.40 CR3 N CC) N cco - en O C'6 co - WWEMW 7 N (0 O R op 4840.85 WWEMW 3 4846.07 4845.25 CR5 .-- c0 CO en CV co CR4 CV ul ui CD eri CR3 op - eA up 0) . WWEMW 7 0a) N- 7.75 WWEMW 3 7.43 u) N Co Date Measured 8/16/16 12:00 AM I 10/17/16 12:00 AM TABLE 1 SUMMARY OF HISTORIC MONITORING WELL DATA FORT LUPTON GRAVELMINE MONITORING WELL ID Date GROUNDWATER SURFACE ELEVATION WWEMW 3 03105104 4845.48 3/182004 484536 _ 4/15/2004 4845.97 4/14/2904 4646.21 6/17/2004 4846.01 7/16/2004 4846.47 8/182004 4846.13 9/16/2904 4846.05 10/20/2004 4846.11 11/21/2004 4845.69 12/10/2004 4845.61 1/182005 4845.18 2/20/2905 4845.30 3/20/2005 4845.21 4/19/2005 4845.98 5/242005 4846.00 6212005 4846.74 7/15/2905 4846.16 8/302005 484585 Average 4845.87 WWEMW 5 03105/04 4844.07 3/182004 4844.01 4/152904 4844.91 4/14/2004 4845.04 6/17/2904 484535 7/16/2004 4845.04 8/182004 4845.26 9/162004 484538 1020/2904 4845.52 11/21/2004 4844.82 12/102004 4844.73 1/182005 484421 2/29/2905 4844.24 3202005 484453 _ 4/192005 484479 524/2005 484488 6212005 4845.38 7/152005 484491 8/30/2005 4845.26 Average 4844.86 WWEMW 6 03/05/04 484149 3/18/2004 4841.42 4/15/2004 4842.18 4/14/2004 4842.47 __ 6/17/2004 4842.46 7/162004 4842.15 8/18/2004 4842.44 9/16/2004 4842.59 10/20/2004 4842.79 11/212004 4842.20 12/10/2004 4842.14 1/182005 4841.80 2/292005 4841.74 3120/2005 4842.05 4/19/2005 4841.94 5/242005 4842.14 6212005 4842.29 7/15/2005 4842.13 8/30/2005 4842.80 Average 4842.17 WWEMW7 03105/04 484083 __ 3/18./2004 484070 4/15/2004 484154 4/14/2004 484164 6/172004 4841.47 7/16/2004 484196 8/182004 4841.57 9/16/2004 4841.32 1020/2004 4841.49 11/2112004 4841.14 12/10/2004 4841.10 1/182005 4840/6 2/20/2905 484090 320/2005 4840.70 4/19/2005 4841.52 5242005 4841.42 6212005 4841.97 7/15/2005 4841.51 8/30/2005 4841.77 Average 4841.33 08/31105 GIS; D:1041-002WgITPIT,MXD �uwwwwwraw■r'�Asin risen 1 - 1'i.' ..!;,. 1 WRIGHT WATER ENGINEERS, INC. 2490 W 26TH AVE 100A DENVER, CO. 80211 (303) 480-1700 HEIT PIT LOCATIONS OF PIEZOMETERS MONITORED FIGURE 1 FLOODPLAIN STUDIES/SPILLWAY DESIGN Bestway Concrete & Aggregates — Lupton Meadow Gravel Mine — MLRB 112 Permit Amendment Application CIVIL RES'JURCES, LLC ENGINEERS & PLANNERS MEMORANDUM TO: Roy Vestal — Public Works Director, City of Fort Lupton File — Lupton Meadows Gravel Mine FROM: Civil Resources, LLC DATE: October 31, 2016 RE: Flood Hazard Development Permit — Lupton Meadow Gravel Mine This memorandum discusses how the proposed mining activities at the Lupton Meadow Gravel Mine west of the South Platte River meets the floodplain management standards set by Weld County Colorado and the City of Fort Lupton. Specifically, the site is located adjacent and west of the South Platte River and north of WCR 20. The site is within the Northeast 1/4 of Section 13, Township 2 North, Range 67 West of the 6th Principal Meridian; and also within the Northwest 1/4 of Section 18, Township 2 North, Range 66 West of the 6th Principal Meridian. The site is generally bounded on the west by an abandoned railroad grade, the north by WCR 22, on the east by the South Platte River, and on the south by the City of Broomfield's Heit Pit. Refer Figure 1. Below is a discussion of the Floodplain Management Standards and how the construction of the Lupton Meadows Gravel Mine meets the standards: 1. The existing FEMA floodplain is Zone A. The FIRM (Panel # 08123C-1915E)(general mapping, no detailed study or floodway defined) is attached to this report. 2. The proposed gravel mine complies with Section 23-11 of the Weld County Code. 3. An existing conditions HEC-RAS model was run to develop base flood elevations (BFEs) as shown in Figure 2. The base flood elevations are approximately two feet above existing grade at the site. The updated floodplain boundary from Civil Resources existing conditions model is represented in Figures 2 and 3 in lieu of the FEMA mapped floodplain from Panel # 08123C -1915E. The updated floodplain boundary changed as much as 400 -feet horizontally from the FEMA mapped floodplain by utilizing more detailed data and therefore is more accurate. A second floodplain model was developed to reflect the proposed gravel mining activities. The construction of gravel mine pits will create ineffective flow areas below grade which is reflected in the HEC-RAS modeling. The construction of temporary berms around the perimeter and temporary stock piles were also modeled. The berms and stock piles will be removed from the area and their grades returned to existing grade upon completion of mining. There are no above grade improvements located in the floodway. The 100 -year floodplain water surface elevations increase slightly in one location (increase of 0.19 feet) from the existing model to the proposed model. The water surface elevation of the base flood did not increase more than six inches at any point and are therefore in compliance with Section 23-11-380.A of the Weld County Code. 4. The base flood elevations in our existing model were compared to the River Garden Winery's approved floodplain model (AMFHDP117) and base flood elevations were comparable. 323 FIFTH STREET • FREDERICK, COLORADO 80530 • PHONE: 303.833.1416 • FAX: 303.833.2850 Lupton Meadows Gravel Mine October 31, 2016 Page 2 of 2 CIVIL RES'iURCE5 5. The signed flood certification form, property owner authorization form and Article XI form are attached. 6. The proposed processing plant will meet all floodproofing criteria listed in Weld County Code Chapter 23 Article XI. Conclusion The proposed below grade gravel mine meets the Floodplain Management Standards for Weld County, Colorado. J:1Bestway-2131GIobal Assets\floodplain\Memo-Flood Hazard Dev Permit.docx FLOOD HAZARD DEVELOPMENT PERMIT (FHDP) APPLICATION DEPARTMENT OF PLANNING SERVICES * 1555 N. 17T" AVENUE * www.weldgov.com GREELEY, CO 80631 * 970-353-6100 EXT 3540 * FAX 970-304-6498 FOR PLANNING DEPARTMENT USE: AMOUNT $ APPLICATION RECEIVED BY DATE RECEIVED: CASE # ASSIGNED: PLANNER ASSIGNED: Parcel Number: 1 3 0 9. 1 8. 2 _ 0 1. 0 1 3 (12 digit number - found on Tax I.D. information, obtainable at the Weld County Assessor's Office www. weldaov.com). Legal Description NW 1/4 Waterway Name: SOUTH PLATTE RIVER , Section 18 Township ? N, Range 66w Floodzone: A El AE El AH El AO II Parcel size: 179.397 acres Project located in designated floodway? Yes El No El If yes, a "No Rise" certificate is required. FEE OWNERS) OF THE PROPERTY: Name: RANDY GEIST Flood Insurance Rate Map (FIRM) Panel #: 08123C-1915 E httas://msc. fema. ctov/portal Company: MAJESTIC OPPORTUNITIES, LLC Phone #: 260-241-4541 Email: Street Address : 6530 CONSTITUTION DR City/State/Zip Code: FORT WAYNE / IN / 46804-1550 APPLICANT OR AUTHORIZED AGENT: (See Below*: Authorization must accompany all applications signed by Authorized Agent) Name: ANDY RODRIGUEZ Company: CIVIL RESOURCES, LLC Phone #: 303-833-1416 Email: ANDY@CIVILRESOURCES.COM Street Address : 323 FIFTH FIFTH ST City/State/Zip Code: FREDERICK I CO / 80530 Type of Proposed Development: (Please check all that apply) Residential Home ❑ New Construction ❑ Addition or Improvements ❑ In Subdivision ❑ Fill Material Subdivision ❑ Other Non -Residential New Construction ❑ Addition or Improvements ❑ Fill Material ❑ Watercourse Alteration Manufactured of Mobile ❑ On Single Lot ❑ In Mobile Home Park ❑ Fill Material ❑ In Mobile Home Description of Proposed Development**: NEW GRAVEL MINE CONSTRUCTION **Attach a det4iled naryQtive of the project to this application. Signature: Owner r Authorized Agent OPrint: er or Au orized Agent o�u( 1� t� Signature: Owner or Authorized Agent Print: Owner or Authorized Agent Date Rev 1/2016 *If an Authorized Agent signs, a letter of authorization from all fee owners must be included with the application. If a corporation is the fee owner, notarized evidence must be included showing the signatory has to legal authority to sign for the corporation. DEPARTMENT OF PLANNING SERVICES 1555 N 17th AVE GREELEY, CO 80631 PHONE: (970) 353-6100, Ext. 3540 FAX: (970) 304-6498 AUTHORIZATION FORM represent for the property (Agent/Applicant) (Owner) located at LEGAL DESCRIPTION: SEC TWN RNG SUBDIVISION NAME: LOT BLK I can be contacted at the following Home Work Email: The property owner can be contacted at the following Email: Home Work Correspondence emailed to: (Check one) DATE ❑ Agent/Applicant ❑ Property Owner OWNER'S SIGNATURE CERTIFICATION I hereby affirm that this Floodplain Development Permit was prepared under my responsible charge for the owners thereof and to my knowledge is accurate and adherent to the applicable standards and rules proviby Weld County, Colorado. Signature: PE #: 3ge4t0 Name Print: AvvirtiArz ad 1 Company Name: (i� )i Re )act, c P a LL C Address: To 5o)( boo City, State, Zip: fireck'uc(t Co Phone: 301) 8331 y 16 Fax: E -Mail: Q✓1 Date: 1,01 -181 l b cc,/ I r{S3urcf'5. co PEStamp ATTACHMENT A FIGURES >tway-2131GIobal Assets/Drawings\SHEETS/FHDP.dwg, 10/31/20161:58:09 PM NORTH 0 1,000 2,000 ( IN FEET) 2 TREMMER PROPERTY WAGNER PROPERTY Voihnar KOENIG PIT w w U w J J W6 (DNE) MINING BOUNDARY 4 ]_... 600' PERIMETER SLURRY WALL STAHL PROPERTY PIT 4,960 <rie.3 wFIr CIVIL RES'DURCES, LIC BESTWAY CONCRETE, INC. LUPTON MEADOWS GRAVEL MINE DATE: FIGURE: FHDP VICINITY MAP OGVdO1OO 'NOldfll 'lJ 3NIW 1�nd2JJ SMOGVJW NOldfll rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr Wtl 97:94:6 RUM L'6MP'd4H31S133HSIsBu!MeJdlsLessV IBQoIJ\ELZ-AeMlse9l:f iAA OGV'dO1OO 'NOldfll "lJ ANIW 1DAVIJD SMOGVJW NOldfll jl 1111111111711111111>111t111111>1171>11111111 ,ZL'9S9 EXISTING MAJOR CONTOUR EXISTING MINOR CONTOUR PROPOSED MAJOR CONTOUR PROPOSED MINOR CONTOUR - PROPERTY LINE 711771711111111177777777111- 100 -YEAR FLOODPLAIN BFE: 4852.81 (A=-0.68') W 0 44:E9 6 910U1/l l '6MP'dOHJIS133HS1s6U meJa\slassy iego101E lZ-6eNsaevr ATTACHMENT B SUPPORTING REFERENCE DOCUMENTS I LL I Weld County Code Section 23-11-380. Specific standards for FLOODPLAINS with BASE FLOOD ELEVATIONS (Zones A1 -A30, AH, AO, and AE). In addition to the general standards in Section 23-11-360 and specific standards for Approximate Floodplains in Section 23-11-370, the following provisions are required for all NEW CONSTRUCTION AND SUBSTANTIAL IMPROVEMENTS that are located in SPECIAL FLOOD HAZARD AREAS designated as Zones Al through A30, AH, AO, and AE: A. Per 44CFR 60.3(c), when a regulatory FLOODWAY has not been designated, the FLOODPLAIN ADMINISTRATOR shall require that no NEW CONSTRUCTION, SUBSTANTIAL IMPROVEMENTS, or other DEVELOPMENT, including FILL, shall be permitted within Zones A1-30 and AE on the COUNTY'S FIRM, unless it is demonstrated that the cumulative effect of the proposed DEVELOPMENT, when combined with all other existing and anticipated DEVELOPMENT, will not increase the WATER SURFACE ELEVATION of the BASE FLOOD more than half a foot ( six (6) inches) at any point within the COUNTY. B. Per 44CFR 60.3(c), all new MANUFACTURED HOMES that are placed within Zones A1 -A30, AH, and AE that are outside of a MANUFACTURED HOME PARK OR SUBDIVISION, in a new MANUFACTURED HOME PARK OR SUBDIVISION, in an expansion to an EXISTING MANUFACTURED HOME PARK OR SUBDIVISION, or in an EXISTING MANUFACTURED HOME PARK OR SUBDIVISION on which a MANUFACTURED HOME has incurred SUBSTANTIAL DAMAGE shall be ELEVATED on a permanent foundation such that the LOWEST FLOOR of the MANUFACTURED HOME is elevated a minimum of one foot above the BASE FLOOD ELEVATION and shall be securely anchored to an adequately anchored foundation system to resist flotation, collapse, and lateral movement. C. Per 44CFR 60.3(c), existing MANUFACTURED HOMES that are placed or SUBSTANTIALLY IMPROVED on sites in an existing MANUFACTURED HOME PARK OR SUBDIVISION within Zones Al through A30, AH, and AE, and that are not subject to the provisions of the above Subsection B, shall be elevated so that either: 1. The LOWEST FLOOR of the MANUFACTURED HOME is a minimum of one foot above the BASE FLOOD ELEVATION; or 2. The MANUFACTURED HOME chassis is supported by reinforced piers or other foundation elements of at least equivalent strength that are no less than thirty-six (36) inches in height above grade and be securely anchored to an adequately anchored foundation system to resist flotation, collapse, and lateral movement. D. Per 44CFR 60.3(c), RECREATIONAL VEHICLES placed on sites within the FLOODPLAIN shall: 1. Be on site for fewer than one -hundred eighty (180) consecutive days and be fully licensed and properly equipped for highway usage; or 2. Shall meet the elevation and anchoring requirements for MANUFACTURED HOMES. ATTACHMENT C HEC RAS OUTPUT SOUTH PLATTE RIVER 100 -YEAR FLOWS - EXISTING Plan: Plan s# River: SaWh Platte Reach: Fort Lupton Gray Profile: PF 2 Reach River Ste Profile 0 Total Min Ch El W.S. Elev Crit W.S. E.G Elev E.G. Slope Vel Chnl Flow Area Top Width Froude # Chl cfs) (ft) (ft) (ft) (ft) (ft/ft) (file) (e9 ft) (ft) Fort Lupton Gray 6500 PF 2 [j{j 29000.00 4848 00 4853 83 485398 4000945 227 10441.98 3213.11 020 Fort Lupton Gray 633333' PF2 29000.00 4848 00 4853.77 485382 0000355 1,15 15584,61 370321 012 Fort Lupton Gray 6166.66' PF2 2900400 4848.00 485368 485375 0000375 490 15560.86 3910.81 0.11, Fort Lupton Gray 6000 PF2 FF 29000,00 484800 485355 4853,64 4000636 080 12949.40 4027.87 013 Fort Lupton Gray 6829.25' PF 2 29000.00 4848.00 485338 485345 4000687 496 1320320 4379,58 014 Fort Lupton Gray 565&5 PF2 29000,00 4848.00 485315 4853.23 0.000822 1,25 1343394 4698.37 0.17 Fort Lupton Grey 5487,75 PF 2 29000.00 4848.00 4852.91 485299 0.000867 1.47 13364,39 4707.22 0,18 Fort Lupton Gray 6317 PF2 EE 29000,00 4848,00 4852.62 4652.70 0001194 1.93 1326313 5507,70 0.21 Fort Lupton Gray 515433' PF 2 2900000 4848.00 4852.39 4852.47 4001307 2,07 12785.37 5253.04 0.22 Fort Lupton Gray 498368' FE 2 29000.00 4848,00 4852.14 4852.23 0.001383 2.16 1244399 5169.14 0.23 Fort Lupton Gray 4817' PF 2 2900400 4848.00 4851.88 4851.97 0.001517 2.26 12027.88 5124.98 0.24 Fort Lupton Gray 4650.33' PF2 29000.00 4848,00 4851.58 4851,68 0001893 234 11432.05 5049.24 0.25 Fort Lupton Gray 448368' PF2 29000.00 4848.00 4851 42 4851.48 0.000698 1.51 14782.92 5327.32 0.18 Fort Lupton Gray 4317 PF 2 DP 2900400 4848.00 4851.07 4851.23 0.003561 323 9370.11 7017.57 436 Fort Lupton Gray 4150.33' PF 2 2900000 4847.17 4850.47 4850.64 0.003469 335 9087,07 4722.66 0.38 Fort Lupton Gray 398366' PF2 2900O00 4846.33 484991 485407 0.003225 341 9192.79 441322 0.35 Fort Lupton Gray 3817' PF 2 29000,00 4845,50 4849.42 4849.56 0.002712 332 9643,23 4361.78 0.33 Fort Lupton Gray 365033' PF 2 29000.00 4844.67 4849 05 4849.18 0.001953 303 1064615 4370,66 0.29 Fort Lupton Gray 348366' PF2 29000.00 4843.83 4848.80 484&89 0.001253 2.64 12215.07 4416,40 0,23 Fort Lupton Gray 3317 PF 2 C C 29000.00 484300 4848.65 4848.72 4000774 2,24 14217,79 4491,62 019 Fort Lupton Gray 5. 31675' PF 2 29000.00 484300 4848.50 4848.57 0.000893 240 14053.81 5400.96 0.20 Fort Lupton Gray 3014.5' PF 2 29000.00 484300 4848,32 4848.39 4000941 2.45 14346.99 5621.97 021 Fort Lupton Gray 286325' PF 2 29000.00 4843.00 4848.13 484&19 0.000931 2.41 14778,51 569345 0.20 Fort Lupton Grav 2712 PF 2 R 2900000 4843.00 4847.92 4847.98 0000837 2.25 15429.11 565622 0.19 Fort Lupton Gray ^2531„2' PF 2 2900400 4842.67 4847.76 4847.82 0.000863 227 1538334 5732.23 0.20 Fort Lupton Gray 2350.4' PF2 2900O00 4842.33 4847 59 4847.65 0.000886 2.28 1534373 5798,35 0,20 Fort Lupton Gray 2169.6' PF 2 29000.00 484200 4847.42 4847,48 0.000915 231 15286.45 5876,17 0,20 Fort Lupton Gray 198&8' PF2 29000.00 4841.67 4847.24 4847.30 0000947 2,34 15226.41 5966,37 0,20 Fort Lupton Grey 1808 PF 2 29000.00 4841.33 4847,06 4847,12 0.000982 2,37 15156.99 8065,67 0.21 Fort Lupton Gray 1027.2' µ_ PF 2 2900000 4841.00 4846.87 4846.93 0,001024 2,41 15075.99 6186 85 0.21 Fort Lupton Gray 1446,4' PF 2 2900000 4840,67 4846.67 4646.73 0,001076 2.46 14980.93 6334.07 0,22 Fort Lupton Grav 1265.6' PF 2 29000,00 4840.33 4846.46 484652 0001130 250 14862.16 6465.66 0.22 Fort Lupton Grav 10848' PF2 2900000 4840,00 4846,23 4846.30 0.001190 254 14727.02 6603,33 0,23 Fort Lupton Gray 904,000' PF 2 29000.00 4839.67 4846.00 4846.06 0.001263 259 14563.30 6759,00 0.23 Fort Lupton Gray 7232' PF 2 29000.00 4839.33 4845,74 484581 0,001365 265 14351.53 6972.12 424 Fort Lupton Gray 542.400' PF 2 2900000 4839.00 4845,47 484554 0.001453 269 14087,95 6954.30 0.25 Fort Lupton Gray Fort L pton Gray 361600' 180800' PF 2 PF2 2900400 2900000 4038,67 4838.33 4845.17 484525 0001605 276 13858.34 6929,84 0,20 4844.82 4844,91 4001919 2.92 1290381 6897,40 0,28 Fort Lupton Gray 0 PF2 AA 2900400 4838.00 4844.33 484363 4844,46 0.003002 342 11172.34 6849.35 0.35 i Legend N N N LL a a a z jw 5 v i ; Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 6500 Section GG - Near Heit South PL 0 0 > a> w 48901 4850 4890 4880 4870 4860 4850 4840 4840 0 0 .045 2000 4000 ,045 5 Legend ............ EG PF 2 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 6333.33* 2000 .045 4000 Station (ft) .05 8000 .045 10000 12000 WS PF 2 ■ Ground A Ineff ♦ Bank Sta Legend_ I EGPF2 WSPF2 Ground Ineff ♦ Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 6166.66* .045 4830 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing 4890-; 4880 4870 4860 0 0 w 4850 4840 4830 4820 • 0 4000 6000 8000 2000 .045 .05 8000 Plan: Plan 05 RS = 6000 Section FF - Station (ft) .05 .045 Legend EG PF 2 10000 12000 10/31/2016 .045 WS PF 2 0 Ground A Ineff • Bank Sta Legend EG PF 2 WS PF 2 10000 12000 Ground • Ineff • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 5829.25* 4890'. 4880 4870 • 4860 0 w 4850 4840 ; 4830 4820 489O .045 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 5658.5* 4880 4870 I • 4860" C 0 w 4850 4840 4830 4820 0 .05 .045 4000 6000 8000 10000 12000 2000 8000 .046 .05 _____ .046 Station (ft) 10000 Legend EG PF 2 12000 WS PF 2 Ground ♦ Ineff • Bank Sta Legend EGPF2 } WSPF2 I Ground Ineff • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 5487.75* .046 A5 ;, .046 4900 4890 4880 4870 4860 w 4850 4840 4830 4820 O Cu (1) w 4900 4890 4880 4870 4860 4850 4840 4830 482O 0 2000 4000 6000 800O Legend EGPF2 10000 12000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 5317 Section EE - South Property Line ,046 05* 2000 4000 6000 8000 10000 Station (ft) .046 12000 WSPF2 Ground Ineff • Bank Sta Legend ............... EGPF2 WS PF 2 Ground a Ineff • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 5150.33* 4900 F 4860 (i) Lu 4840 i 4830 488O' 4870 F 7. 4860 m 4850 4840 4830 .046 4820 0 2000 4000 5 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 4983.66* .046 4000 6000 8000 10000 2000 .046 5 Station (ft) 8000 .046 10000 Legend EGPF2 WS PF 2 Ground i Ineff • Bank Sta 12000 12000 Legend EG PF 2 WS PF 2 Ground A-- Ineff • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 4817.* 4890 4880 4870 4860'1 > m 4850 4840 4830 0 4) uJ .046 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 4650.33* 5 .046 0 2000 4000 6000 8000 10000 Station (ft) 8000 10000 Legend EG PF 2 WSPF2 Ground ♦ ; Ineff I Bank Sta 12000 j Legend 12000 EGPF2 WSPF2 Ground A Ineff S Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 4483.66* 4890-1 4870 4860 4850 4840 ; _ - 0 4885 4880 4875 4870- O ° 4865-1 ar w 4860 4855 4850 !, 4845 0 - .045 .045 2000 4000 6000 8000 Legend EG PF 2 WS PF 2 10000 12000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 4317 Section DD - 1000' North of South Property Line .045 .045 4000 6000 8000 2000 5 Station (ft) Ground • Bank Sta Legend EG PF 2 WS PF 2 10000 12000 Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 4150.33* .045 4885 4880 4875- 4870 c r 4865 a> d✓ c O > w 4860 4855 4850 4845 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 3983.66* 5 8000 10000 4885 i 4880 4875 4870 4865 4860 4855 4850 4845 .045 0 2000 .045 5 4000 6000 Station (ft) .045 8000 Legend EG PF 2 WS PF 2 12000 10000 12000 Ground • Bank Sta Legend { EGPF2 WS PF 2 ! ■ Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 3817." iK 0 > a) LU .045 4885 4880 4875 4870 4865 486O 4855-1 4850 4845 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 3650.33* 5 4840 0 .045 8000 10000 2000 .045 4000 6000 Station (ft) .045 8000 Legend EG PF 2 12000 10000 12000 WS PF 2 I Ground I • Bank Sta Legend EG PF 2 j WS PF 2 I Ground Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 3483.66* .045 4885 4880 4875 4870 4865 4860 w 0 .c aa) w 4855 4850 4845 4840 _. 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 3317 Section CC - 2000' North of South Property Line 5 4880 4875 4870 4865 4860 I 4855 4850 4845 4840 0 .045 5 2000 4000 6000 8000 Station (ft) .045 - .045 Legend EG PF 2 WS PF 2 8000 10000 12000 Ground • Bank Sta Legend EG PF 2 WS PF 2 10000 12000 Ground ♦ Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 3165/5* O .045 4875 4870 4865 4860 co m w a) w 4855 4850 4845; 4840 t__ ... 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 3014.5' 5 8000 10000 4880 4875 4870 4865 4860 4855 4850 4845 4840 0 .045 .045 5 .045 2000 4000 6000 Station (ft) 8000 Legend EG PF 2 WS PF 2 Ground • I Bank Sta 12000 Legend EG PF 2 WS PF 2 10000 12000 Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 2863.25* 4880 4840 0 4840 0 045 2000 5 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 2712 Section BB -D.S. North Property Line .045 2000 4000 6000 Station (ft) 8000 8000 10000 10000 Legend EG PF 2 12000 12000 WS PF 2 Ground • Bank Sta Legend EG PF 2 WS PF 2 Ground • Bank Sta 4880 4875 4870 4865 4860 4855 4850 4845 4840' 0 4875 48701 4865 4860 O !0 w 4855 -I 485O 4845 4840 0 Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 2531.2` .045 0: 5 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 2350,4* .045 .045 5 2000 4000 6000 8000 Station (ft) 8000 .045 10000 Legend EG PF 2 12000 10000 12000 WS PF 2 Ground • Bank Sta Legend EG PF 2 WS PF 2 Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 2169.6* 0 O > a) W 4875 4840 �__ _ , 0 4875 4860 c o .7j. w 4855 4850 4845 4840 0 .045 5 2000 4000 6000 Station (ft) .045 8000 10000 Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 1988.8* 2000 .045 605,. 4000 6000 Station (ft) .045 8000 Legend ............. EG PF 2 WS PF 2 12000 10000 12000 Ground • Bank Sta Legend EG PF 2 WSPF2 Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 1808.* .045 4870 5? 4840 t _ _ 0 2000 4000 600O Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 1627.2* 4870 .045 .045 4840 • 0 2000 4000 6000 Station (ft) 8000 .045 8000 10000 Legend EG PF 2 WS PF 2 12000 Ground • Bank Sta Legend EG PF 2 WS PF 2 10000 12000 Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 1446.4* c 0 > W 4840I - 4865 .045 5; 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing RS = 1265.6* .045 5 0 2000 4000 6000 8000 Station (ft) .045 8000 10000 Plan: Plan 05 10/31/2016 .045 Legend EG PF 2 WS PF 2 12000 Ground • Bank Sta Legend ................ EG PF 2 10000 12000 WS PF 2 Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 1084.8" c 0 Co m W .045 4845 4840 : 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 904.000* .05 .045 4855 4850 4845 4840 4835 0 2000 4000 6000 8000 10000 12000 .05 .045 .045 Legend EG PF 2 8000 10000 12000 WS PF 2 Ground Bank Sta Legend EG PF 2 Station (ft) WS PF 2 Ground ! Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 723.2* c O W 0 0 CO a) W 48601 .045 .05 - - .045 4835 ; __ . 0 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 542.400* 4860-; 4835 0 .045 .05 .045 2000 4000 6000 8000 10000 12000 Station (ft) Legend EG PF 2 WSPF2 Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 361.600* 4860 1 c 0 cc a) W 4835 0 4860 c 0 a) W 4835 0 .045 2000 .05 4000 6000 .045 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 180.800* .045 .05 .045 Legend EG PF 2 ! WSPF2 i Ground Bank Sta Legend EG PF 2 WS PF 2 2000 4000 6000 8000 10000 12000 Station (ft) Ground • Bank Sta Bestway-Global Assets - SPR Existing Plan: Plan 05 10/31/2016 RS = 0 Section AA - 2712' d.s. of north property ATTACHMENT D HEC RAS OUTPUT SOUTH PLATTE RIVER 100 -YEAR FLOWS - PROPOSED HEC-RAS Plan: Plan 06 River: South Plalle Reach: Fort Lupton Gray Profile: PF 2 Reach River Sra Profile ()Total Min CS El W S Elev I Cril W S E G Elev E G Slope Vet Chnl Flow Area (cfs)... (B) (6) (ft) (ft) (Nft) (810) (sq ft) 650 Fon Lupton Gray 4 PF 2 (G __. 29000.001 4848 001 4853 721 _. 'Fort Lupton Gray 6333 33' PF 2 2900000, 4848001 4853.631 =Fort Lupton Gray 6166 66' PF 2 29000.003 4848 001 4653.521 !.Fort Lupton Gray 6000 PF 2 F F 290002001 4848.00 4853.361 t Fort Lupton Gray 5629.25' PF 2 2900000 484600 4853.141 Fon Lupton Gray 5658 5' PF 2 29000.00 484800 4852.911 !Fon Lupton Gray 5487 75' PF 2 2900040 4848,00 4852,621- ... 1Fort Lupton Gray 5317 PF 2 4 G 4 29000001 4848.00 4852.151 !Fort Lupton Gray 5150 33' PF 2 29000,001 484800 4851.90': Fort Lupton Gray 4983 66' PF 2 29040401 484800 4851,70' !Fon Lupton Gray .4817' PF 2 20000401 484600) 4851.481 Fort Lupton Gray 4650 33' ,PF 2 29000.001 484600 4851,26` Fort Lupton Gray 4483 66' PF 2 _ 29000001 4848.00 4850.99; !Fon Lupton Gray 4317 ''PF 2DD' 29000001 484600 4850611 Fon Lupton Gray 4150 33' PF 2 2900040 4847.17 4850.13! Fon Lupton Grav 3983 66* PF 2 29009;00 484633 4849 33i Fon Lupton Gray 3817' PF 2 2900000 4845 50 4849,21! Fort Lupton Gray 3650 33' PF 2 29000.00 4814,67 4849.09) Fort Lupton Gras 3483 86' PF 2 29900.00 4843,831 4848961 Fort Lupton Gray 3317 PF 2 CC , 29000.00 4843004 4848.841 Fort Lupton Gras 3 765 75' PF 2 2900000!1 4843.00! 4848.88E Fort Lupton Gras 3014 5' PF 2 29000.001 4843 00 484847' ;Fort Lupton Gray 2863 26' PF 2 29000.001 484300 4848.17: Fort Lupton Gray 2712 1 PF 2 B 134 29000 00)} 484100 4847 921 !Fort Lupton Gray 2531 2' I PF 2 29000 0011 4842,67 4847.76' 1 Fort Lupton Gray 2350 4' I PF 2 29000 001 4842.33 4847 591 I Fort Lupton Gras 2169 6' I PF 2 29000001 484200 4847 421 Fon Lupton Gray 1986 8' IPF 2 29000.001 4841.67 4847 241 'Fort Lupton Gray 1808' iPF 2 29000.001 4841.33 4847..06; 'Fort Lupton Gray 16272' I PF 2 29000.001 4841 001 4846 871 !Fort Lupton Gras 1446 4' IPF 2 29000.00! 4840,6711 4846.67'., Fort Lupton Gras 12856' IPF 2 29000001 4840,33 4846.461 Fort Lupton Gras 1084 8' I PF 2 29000 001 484000 4846 23 !Fort Lupton Gras 904 000* IPF 2 29000001 4839.67 4646 001 1 Fon Lupton Gray 723 2' IPF 2 29000 001 4839,33 4845 741 !Fort Lupton Gray 542 400' I PF 2 29000 00! 483900 4845.471 1 !Fort Lupton Gray 361 600' ;PP 2 29000,00, 483867, 4845 17! :Fort Lupton Gray 180.800' PF 2 29000.001 483633 4844 821 !Fon Lupton Gray '0 PF 2 AA : 29000001 483600 4844 331 Top Width Froude # Chi 4853 86, 0.001024; 2,32, 1007213 309663' 4851701 0 000428; 1 22, 14649 37 3545 81 ` 4853 603 0.000514 1, 001 14093 10 376073: 4853 481 0 000719 079I 12213 17 3866.371 4853 251 0.000777`1 0931 12322.79 3886.191. 4853 00 0.000891 1,181 12330001 4231 85i 485272! 0001101@ 1„511 12052771 _ 4354001 4852 28, 0.002257 232, 10144,294_ 4514 051 4851,99 0.001123' 1651 1280023, 4464.98! 4851.78 0.001187 1.711 12528.40. 4339.061 1. 4851,571 0001130, 1.69, 11971,42 3794,391 4851 361 00012481 1 77! 1138241 3677664 4851.11 0.0015754 1 95 10605.071 3483 37, 465076, 0002355, 222 9305.87 3332193 4860.291 0003277, 290' 8984.38 389629,, 4849 571 0.0057171 3 81' 739379 3836.711 4846271 0, 000641 1.511 14540,27+. 4167 811 4849.15 0.0007154 1 831 13982, 94') 4152 597; 484903) 0.0007514 2081 14148,89 4271.441 1 4848.90! 0.000747' 2 26' 14492.48 4497 68' 4846 751 0000925` 2 51 14091.61 544998%6661 498.40( 4848.54! 0 0011601 2 781 13692.51 5635,51I 4048.251 0001445, _ 3031 1308206 5696201 4647,98! 0.000837! ▪ 2 251 _ 15429.17 565622! 4847,821{, 00008634 - 2271 15383,34 573223( 4847 65 0 0008861 2 2111 1534173 5798 35! 4847.46 0.000915 2 311 15288.45 5876.17' 4847 301 00009471 2.344 15226.41 5966,37 i 4847.121 0.000982! 2.371 15158,99 606567(. 4846031 00010241 2411 15075.99 6186 851. 4846.7311 0001076, 2.461 _.._ 14980931 6334071 4846.52 0.0011304 2501 1466216 6485 66! 4846.301 0 0011901 254 14727 D2 6603 33! 4846 08 0001263 259! 1456330 675900 4845.81 0 0013651 265 14351 53 697212 4845,541 00014531 269 _ 14087 95 6954.301 4845 251 0.0016051 276 13858 34 692984, 4844 911 0.001919 292 12903 81 6897 404 631 4844461 50030021 3 42 11172 34 684935 0 211 0131 013, 0.14: 1 0 154 0 171 0 19! 028, 0 20) 0 20) 0 201 0 21, 0 24 0 281 034 0 45# 0 16` 0 173 0 181 0183 0 211 023, 025! 0 19! 0 2011 0 20 0 201 0201 021: 0.21 1 0 221 0221 0 231 0 23' 0 24, 0 251 0 26i 028 0 351 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 6500 Section GG - Near Heit South PL 0 Co G) W 0 0 Co. CD W 4890 l 4880 4870 4860 4850 .045 4840 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 6333.33" .05 4890 -I 4880 4870 4860 4850 4840 0 .045 5 2000 .045 8000 10000 .045 4000 6000 Station (ft) 8000 Legend EG PF 2 WS PF 2 12000 Ground A Ineff • Bank Sta Legend EG PF 2 10000 12000 WS PF 2 0 Ground • Ineff • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 6166.66* c 0 co a> W 4890 4880 4870 4860 4850 I 4840 4830- - T----- 4890 4880 i 4870 y { g 4860 c O co uj 4850 4840 4830 4820 0 .045 8000 10000 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 6000 Section FF - .05 - .045 4000 6000 8000 10000 2000 .045 Station (ft) .05 .045 12000 Legend EGPF2 WS PF 2 Ground A Ineff • Bank Sta Legend EG PF 2 WS PF 2 12000 Ground • Ineff Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 5829.25* .045 4820 I - 0 2000 4000 6000 Station (ft) 4890 4880 4870 4860 0 o w 4850 4840 1 4830 i 4820 0 .05 8000 .045 Legend EGPF2 WSPF2 10000 12000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 5658.5* 4000 6000 8000 10000 12000 2000 .046 _ .05 .046 Station (ft) Ground A Ineff ♦ Bank Sta Legend EG PF 2 WS PF 2 Ground Ineff ♦ Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 5487.75* 4900 489O 4880] 4870 4860 >> w 1 4850 O 0 Cu > m w 4840 4830j 4820-i -_r-. 0 4900 4890 4880 4870 4860 4850 4840 4830 4820 .046 4000 6000 2000 .05 8000 .046 10000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 5317 Section EE - South Property Line .046 :11:05 F: .046 0 2000 4000 Legend EG PF 2 WS PF 2 Ground A Ineff • } Bank Sta 12000 Legend EG PF 2 WS PF 2 6000 8000 10000 12000 Station (ft) Ground A Ineff • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 5150.33* c 0 m W 4900 4830 4820 0 4880 I 4870 i 48601 0 0 w 48501 4840 4830 4820 0 .046 5 .046 Legend EGPF2 WS PF 2 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 4983.66* 2000 .046 4000 6000 Station (ft) 8000 .046 Ground • Ineff Bank Sta Legend EG PF 2 10000 12000 WSPF2 3 Ground • Ineff S Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 4817.* .046 4890 4880 a 4870 4860 C 0 m I i 4850 484O 483O j 4820 0 2000 4000 6000 Station (ft) 5 8000 4890 4870 j 4860 0 m aa) IL 4850 4840 4830 i 4820 • __ 0 .046 Legend 10000 12000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 4650.33* 4000 6000 Station (ft) 8000 10000 2000 .045 5 .045 EG PF 2 WS PF 2 Ground • Ineff • Bank Sta Legend EG PF 2 12000 WS PF 2 Ground • Ineff • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 4483.66* 0 a) w .045 4890 4880 4870 I 4860! { 4850 4840 4830 4820 48104._ 5 0 2000 4000 6000 Station (ft) 4890 4880 4870 486O 48501 au 4840 4830 '; 4820 4810' 0 .045 8000 10000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 4317 Section DD - 1000' North of South Property Line 2000 ,045 4000 6000 Station (ft) .045 8000 12000 Legend EG PF 2 WS PF 2 Ground I neff • Bank Sta Legend EG PF 2 WS PF 2 Ground A Ineff • I Bank Sta 10000 12000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 4150.33' 4890 4880 4870 4860 4850 4840 4830 4820 4810 - 0 2000 4890 4880 4870 4860 4840 4830 4820 .045 5 4000 6000 Station (ft) Bestway-Global Assets - SPR Prop -Interim RS = 3983.66* 4810 0 2000 .045 4000 5 6000 Station (ft) .045 8000 10000 Plan: Plan 06 10/31/2016 .045 8000 Legend EG PF 2 WS PF 2 Ground • Ineff • Bank Sta 12000 Legend EG PF 2 WS PF 2 10000 12000 Ground • Ineff • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 3817.* 4890 4880 4870 4860 O 4850 4840 4830 4820 4810! 0 c 0 co W 4890 4880 4870 48601 4850 9 4840 4830 I 4820 481O 0 .045 • 5 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 3650.33* .045 .045 8000 .045 Legend EG PF 2 10000 12000 2000 4000 6000 Station (ft) 8000 10000 12000 WS PF 2 Ground A Ineff • Bank Sta Legend EG PF 2 WS PF 2 Ground • Ineff • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 3483.66* c O > a) w 4850 { 4880 487011 4860 4850•I 4840 4830 4820 4810 i 2000 4000 6000 8000 0 481O • 0 .045 .045 Legend EG PF 2 10000 12000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 3317 Section CC - 2000' North of South Property Line 2000 4000 6000 Station (ft) 8000 WS PF 2 Ground ♦ Ineff S Bank Sta Legend EG PF 2 WS PF 2 10000 12000 Ground • Ineff S Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 3165.75* 0 0 a) W 48801 4870 4860 4840 i 4830 4820 0 2000 4000 6000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 3014.5* - .045 5 4860 4850 I 4840 4830 8000 .045 .045 5 .045 4820 0 2000 4000 6000 8000 10000 12000 Station (ft) Legend EGPF2 WSPF2 Ground • Ineff Bank Sta 10000 12000 Legend EGPF2 WSPF2 ■ Ground Ineff • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 2863.25* c O co > a) w C 0 co uw 4880 4870 4860- 4850 4840 4830 045 5 0 2000 4000 6000 Station (ft) 4880 s 4875 4870 4865 4860 ,s { 4855 4850 4845 j 4840 0 .045 8000 Legend EG PF 2 10000 12000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 2712 Section BB -D.S. North Property Line 2000 .045 4000 5 6000 Station (ft) 8000 .045 10000 WS PF 2 Ground A Ineff • Bank Sta Legend { EG PF 2 { WS PF 2 12000 Ground • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 2531.2* C 0 w 4880 4875 4870 4865 4860 4855 4850 4845 4840 'r 0 4875 4870 4865 4860-; C 0 co W 4855 4850 4845 4840 0 .045 ... 2000 4000 5 6000 8000 .045 . Legend EG PF 2 I WS PF 2 Ground • Bank Sta 10000 12000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 2350.4* .045 0 5 2000 4000 6000 8000 Station (ft) .045 Legend EG PF 2 10000 12000 WS PF 2 Ground • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 2169.6* 4875 4870 I 4865 • 48601 a O • 4855 4850 4845 4840 0 4875 4870 4865.i • 4860 47, 0 a) j 4855 4850 4845 4840 0 .045 5 .045 2000 4000 6000 Station (ft) 8000 10000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 1988.8* 2000 .045 t;05t .045 4000 6000 Station (ft) 8000 Legend EG PF 2 WS PF 2 12000 Ground • Bank Sta Legend EG PF 2 10000 12000 WS PF 2 at Ground • Bank Sta 4840 m w Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 1808.* .045 4870 0 2000 4870 4865 4860 4855 4850 4845 4840 0 4000 6000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 1627.2* .045 .045 5 8000 .045 10000 12000 Legend EGPF2.. WS PF 2 Ground Bank Sta Legend EG PF 2 WS PF 2 Ground • Bank Sta 2000 4000 6000 Station (ft) 8000 10000 12000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 1446.4* F 0 0 co > cu W 0 > m w 4840 — 2000 4000 6000 800O Legend EG PF 2 WS PF 2 10000 12000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 1265.6* 045 4865 4860 4855 4850 r 4845 5 4840 4840 6000 8000 Station (ft) 0 2000 4000 .045 Ground • Bank Sta Legend EG PF 2 10000 12000 WS PF 2 Ground • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 1084.8* 0 0 > a) W O a) LL 4865 -I 0 2000 4000 6000 Station (ft) 8000 4835 0 .045 '.05: .045 Legend EGPF2 WS PF 2 - Ground • Bank Sta 10000 12000 Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 904.000* 2000 4000 6000 Station (ft) 8000 Legend EG PF 2 10000 12000 WS PF 2 e Ground • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 723.2* 0 > a> w c 0 Co W .045 4860 4835 + 0 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 542.400* .05 .045 Legend 4860 4855 4850 4845 4840.1, 4835 0 .045 .05 .045 - EGPF2 WSPF2 Ground • Bank Sta Legend ! EG PF 2 WSPF2 Ground • Bank Sta 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 361.600* .045 .05 .045 O 0 a> W c 0 W 4860 4855 4850 4845- 4840 4835 1- 0 2000 4000 6000 4860 4835 0 8000 10000 Station (ft) Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 180.800* .045 .05 .045 Legend 12000 EG PF 2 WS PF 2 Ground • Bank Sta Legend ................. EG PF 2 2000 4000 6000 8000 10000 12000 Station (ft) WS PF 2 Ground • Bank Sta Bestway-Global Assets - SPR Prop -Interim Plan: Plan 06 10/31/2016 RS = 0 Section AA - 2712' d.s. of north property 045 ._ .05 .045 SPILLWAY DESIGN Bestway Concrete & Aggregates — Lupton Meadow Gravel Mine — MLRB 112 Permit Amendment Application CIVIL RES"W.JRCES, LLC ENGINEERS & PLANNERS MEMORANDUM TO: File — Lupton Meadows Gravel Mine FROM: Civil Resources, LLC DATE: October 31, 2016 RE: Spillway Design — Lupton Meadow Gravel Mine This memorandum discusses how the proposed mining and reclamation activities at the Lupton Meadows Gravel Mine will safely receive and convey flood water that may be present during large-scale storm events up to the 100 -year return frequency. Below is a summary of the current design and analyses that have been performed to support the proposed project design: 1. Specific hydrology on the Little Dry Creek Basin has been developed using the Colorado Urban Hydrograph Program to analyze the flows on the Little Dry Creek Basin. These flows were input into a HEC-RAS model and varying flow rates and river stages were used to design the spillway capacity. 2. The Special Flood Hazard Information Report, South Platte River Vol 1, Weld County Colorado, April 1977 was used to determine design flows in the South Platte Basin. 3. A HEC-RAS River model was used to model both the Little Dry Creek and South Platte River water conveyances in the proposed mine location. The various outputs from these models are attached to this memo and also in the flood hazard development permit submitted to the City of Fort Lupton. 4. The weir equation was applied to estimate the rate of side overflow from the respective drainages into each mining cell and to estimate the level of erosion protection that may be warranted to protect the respective cells from washout during the storm events. Design Basis The goal of the floodplain modeling and spillway design was to calculate the inflow rate and maximum inflow velocities under various pond storage levels. Allowing water to enter during the rising river versus general overtopping of the bank at one time, results in higher storage levels in the respective ponds when the peak inflow rate occurs. Therefore providing stilling of the inflowing water normally associated with washout of pond side banks. The time required to fill the reclaimed ponds 1-4 (see reclamation plan) is dependent on the water surface elevation during flood stage and the overflow dimensions. Head, H, increases with the rise in stream level during flooding and was determined from the HEC-RAS model. Various flows rates were input in to the river/creek model to determine the flooded stage at the site versus the difference in water surface elevation and spillway invert to determine the flow rate entering the pond based on the following weir equation: 3 Q = CLH where: C= 2.5 (broad -crested weir coefficient) L= Length of Weir (feet) H= Hydraulic head (feet) 323 FIFTH STREET • FREDERICK, COLORADO 80530 • PHONE: 303.833.1416 • FAX: 303.833.2850 Lupton Meadows Gravel Mine October 31, 2016 Page 2 of 3 CIVIL RESIIURCES Ponds 1 and 2 (East of CR 25 subject to South Platte River Flooding): There is an existing ridge along the length of the east side of Ponds 1 and 2 that will cause the initial flood flows to enter Cell 2 from the south side. A proposed spillway will allow the west overbank flows to enter the cells in a controlled manner and subsequently continue north through the cells and offsite. Ponds 1 & 2 are separated from the South Platte River by a 250 to 600 foot vegetated buffer that will remain and that contains mature trees which will armor against erosion and back -cutting to the river. The initial inflow spillways have elevations of 4846.5 and 4849.0 feet, respectively for Ponds 1 and 2. The 100 -year storm floodplain in the South Platte River has water surface elevations of 4849.1 feet and 4850.1 at Ponds 1 and 2, respectively, which represents one to two feet of overtopping into the ponds at peak flood stage, however, these facilities will have already partially filled prior to the peak stage being reached and therefore the inflow will be less erosive (i.e. stilled by the stored water). Ponds 3 and 4 (West of CR 25 subject to Little Dry Creek Flooding): The initial inflow spillways have elevations of 4843.5 feet and 4846.6 feet, respectively for Ponds 3 and 4. The 100 -year storm floodplain in Little Dry Creek has water surface elevations of 4846.0 feet and 4847.5 at Ponds 3 and 4, respectively, which represents less than one foot of overtopping into the ponds. The Little Dry Creek runoff hydrograph and corresponding peak flow (4300 cfs) 100 -year water surface profile are depicted in the following figures: 5000 4500 4000 3500 1-3 3000 2500 0 2000 " 1500 1000 500 0 0.00 Little Dry Creek Hydrograph 5.00 10,00 15.00 Time (hours) 20.00 25.00 Erosion Protection: Erosion protection of the spillways should include riprap and pyramat (or equal) geotextile as shown on Figure A and B. Protection of the downstream (inside) toe of slope is critical to reducing the risk of the floodwaters cutting out the reclaimed storage facility and therefore riprap or broken concrete rubble should be placed along the toes as depicted on Figure B. The side -banks on the drainage side of each cell should also be protected with Pyramat or other approved geotextile material and seeded with deep-rooted grass to withstand the erosive forces during the inflow period (estimated up to 7 feet per second). Topsoil or soil amendments should be used as necessary to promote dense growth of the grass. Additionally, riprap or concrete rubble should be placed on the downstream edge of each spillway and along the toe of slope where overtopping will occur. The attached Figure contain copies of the proposed spillway location and design. Once the ponds are full the gradient flowing north will control the flood with average depths of one to two feet and low velocities of one to two feet per second during peak rates. There is no significant gradient or drop on the north end of the Site and therefore no need to protect the flow heading north. Lupton Meadows Gravel Mine October 31, 2016 Page 3 of 3 CIVIL RES'IURCES Conclusion The proposed spillway system will encourage flood water to enter the cells in a controlled manner during the rising stem of the design storm hydrographs for the respective drainages and thereby reduce the likelihood of these facilities washing out during the peak river flows because the water stored in the bottom of the ponds will still the peak inflows. Further, erosion protection measures are proposed to further protect the facilities from damage and washout. J:IBestway-2131GIobal Assets\floodplain\Memo-SpillwayDesign .docx BESTWAY CONCRETE, INC. '3NI ' 1 iDNOD AVM1S39 D NIN ig/V JJ SMOGVDN NOldfll z I\ 6e OPEC 15a \ 11 11 111 11 711111111111711Tf1iyY111-111-111111 1 in' Pi / 17 ; o SPILLWAY PLAN 1111111Y111.111111111f Y Wd £4:£Z: 9LOZ/IILL'6Mp'SOId-ddV-SIANG\S133HS1s6uIMeJp\sIassV le(10101£1.Z-Aemls991-f BESTWAY CONCRETE, INC. 'DNI']i]aDNOD AVM±S]9 ]NIR ]QAVUD SMOGV]w NOl n] § § § (/ , 2 co CO CO 9f 8 0 8 • it 3 TENANCE ROAD 1.75' TYPE M BURIED RIPRAP OR APPROVED EOUAL OVER 6' TYPE II SLURRY WALL SPILLWAY INVERT: 4849.0 } } $ � .. PYRA ANCHOR HE / TRENCH TYP, PER MANUFACTURER k te PYRAMAT GEOSVNTHETIC � , OR APPROVED EQUAL c.,,„ Ot: 0 N 8 r\ PYRAMAT GEC ROCK TOE PROTECTION OR APPROVED EQUAL k MAINTENANCE ROAD . PYRAMAT ANCHOR TRENCH TYP. PER MANUFACTURER RECOMENDATIONS SLURRY WALL 1 SPILLWAY INVERT: 4843.5 J / 1.75' TYPE M BURIED - RIPRAP OR APPROVED EQUAL OVER 6' TYPE II BEDDING § § a2 LI 0 r ; § rn PYRAMAT GEOSYNTHETIC I . ! 3 ROCK TOE PROTECTION - OR APPROVED EQUAL 8 T, El ILLWAY INVERT: 4846.6 / PYRAMAT ANCHOR PER MANUFACTURER RECOMENDATIONS SLURRY WALL 1.75' TYPE M BURIED J RIPRAP OR APPROVED EQUAL OVER 6" TYPE II BEDDING N MAINTENANCE ROAD \' § st 0 rn in ea;III' _a9_\ A —_m O$ _m HEC-RAS Plan: Plan 06 River: South Platte Reach: Fort Lupton Gray Reach River Ste Profile Q Total Min Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vet Chnl Flow Area Top Width Froude 6 Chl (ds) (ft) (ft) (ft) (ft) (ft/fi) (Ills) (s9 ft) (ft) Fort Lupton Gray 6500 PF 1 26000.00 4848.00 4853.35 4853.48 0.001068 2.21 8988.19 2735.61 0.21 Fort Lupton Gray 6500 PF 2 29000.00 4848.00 4853.70 4853.84 0.001038 2.32 10013.30 3080.02 0.21 Fort Lupton.Grav 6500 PF 3 50.00 4848.00 4848.05 4848.05 4848.06 0.022390 0.58 72.49 1389.08 0.47 Fort Lupton Gray 6500 PF 4 500.00 4848.00 4848.15 4848.15 4848.24 0.065176 1.82 209.79 1394.90 0.94 Fat Lupton Gray 6500 PF 5 1500.00 4848.00 4848.78 4848.81 0.002404 0.88 1102.22 1432.15 0.23 Fat Lupton Gray 6500 PF 6 3000.00 4848.00 4849.44 4849.48 0.001237 0.90 2059.08 1471.04 0.18 Fort Lupton Gray 6500 PF 7 6000.00 4848.00 4850.34 4850.39 0.000983 1.08 3400.86 1537.41 0.17 Fat Lupton Gray 6500 PF 8 8000.00 4848.00 4850.80 4850.86 0.000953 1.19 4127.04 1583.69 0.17 Fort Lupton Gray 6500 PF 9 10000.00 4848.00 4851.20 4851.27 0.000949 1.30 4770.68 1623.60 0.18 Fort Lupton Gray 6333.33' PF 1 26000.00 4848.00 4853.26 4853.32 0.000433 1.11 13375.03 3274.33 0.13 Fort Lupton Gray 6333.33* PF 2 29000.00 4848.00 4853.61 4853.68 0.000433 1.22 14576.83 3527.96 0.13 Fort Lupton Gray 6333.33* PF 3 50.00 4848.00 4847.35 4847.35 0.000033 527.86 1507.10 0.00 Fort Lupton Gray 6333.33* PF 4 500.00 4848.00 4848.03 4848.03 0.000092 0.03 1557.87 1546.13 0.03 Fort Lupton Gray 6333.33* PF 5 1500.00 4848.00 4848.71 4848.72 0.000153 0.24 2628.79 1600.98 0.06 Fort Lupton Gray 6333.33* PF 6 3000.00 4848.00 4849.36 4849.37 0.000231 0.43 3754.44 1882.12 0.08 Fort Lupton Gray 6333.33* PF 7 6000.00 4848.00 4850.25 4850.27 0.000274 0.38 5544.69 2126.13 0.08 Fort Lupton Gran 6333.33* PF 8 8000.00 4848.00 4850.72 4850.74 0.000294 0.46 6564.49 2261.58 0.09 Fort Lupton Gray 6333.33* PF 9 10000.00 4848.00 4851.12 4851.15 0.000314 0.54 7497.19 2392.44 0.09 Fort Lupton Gray 6166.66* PF 1 26000.00 4848.00 4853.14 4853.22 0.000533 0.90 12728.49 3488.52 0.13 Fort Lupton Gray 6166.66* PF 2 29000.00 4848.00 4853.50 4853.57 0.000522 1.00 14007.03 3739.61 0.13 Fort Lupton Gray 6166.66* PF 3 50.00 4848.00 4847.34 4847.34 0.000035 521.40 1517.33 0.00 Fort Lupton Gray 6166.66* PF 4 500.00 4848.00 4848.01 4848.01 0.000097 0.01 1533.41 1555.15 0.02 Fort Lupton Gray 6186.66* PF 5 1500.00 4848.00 4848.68 4848.69 0.000158 0.25 2584.54 1580.63 0.06 Fort Lupton Gray 6166.66* PF 6 3000.00 4848.00 4849.31 4849.32 0.000217 0.43 3586.91 1604.56 0.08 Fort Lupton Gray 6166.66* PF 7 6000.00 4848.00 4850.19 4850.21 0.000319 0.69 5079.98 1800.78 0.10 Fort Lupton Gray 6166.66* PF 8 8000.00 4848.00 4850.64 4850.67 0.000366 0.82 5924.96 1904.83 0.11 Fort Lupton Gray 6166.66` PF 9 10000.00 4848.00 4851.04 4851.07 0.000396 0.49 6715.82 2136.11 0.10 Fort Lupton Gray 6000 PF 1 26000.00 4848.00 4852.97 4853.08 0.000747 0.66 10792.08 3495.56 0.14 Fort Lupton Gray 6000 PF 2 29000.00 4848.00 4853.33 4853.44 0.000731 0.79 12115.28 3844.39 0.14 Fort Lupton Gray 6000 PF 3 50.00 4848.00 4847.34 4847.34 0.000040 499.10 1487.36 0.00 Fort Lupton Gray 6000 PF 4 500.00 4848.00 4847.99 4847.99 0.000109 1467.85 1493.86 0.00 Fort Lupton Gray 6000 PF 5 1500.00 4848.00 4848.64 4848.65 0.000178 0.27 2478.57 1552.69 0.06 Fort Lupton Gray 6000 PF 6 3000.00 4848.00 4849.26 4849.27 0.000243 0.46 3440.71 1572.55 0.08 Fort Lupton Gray 6000 PF 7 6000.00 4848.00 4850.11 4850.14 0.000333 0.72 4797.86 1615.44 0.10 Fort Lupton Gray 6000 PF B 8000.00 4848.00 4850.56 4850.59 0.000393 0.87 5529.82 1690.10 0.11 Fort Lupton Gray 6000 PF 9 10000.00 4848.00 4850.94 4850.98 0.000443 0.99 6190.02 1754.73 0.12 Fort Lupton Gray 5829.25* PF 1 26000.00 4848.00 4852.75 4852.85 0.000809 0.83 10866.23 3490.50 0.15 Fort Lupton Gray 5829.25* PF 2 29000.00 4848.00 4853.11 4853.22 0.000789 0.93 12211.30 3853.43 0.15 Fort Lupton Gray 5829.25* PF 3 50.00 4848.00 4847.32 4847.32 0.000045 480.27 1487.93 0.00 Fort Lupton Gray 5829.25* PF 4 500.00 4848.00 4847.95 4847.95 0.000123 1417.18 1496.19 0.00 Fort Lupton Gray 5829.25* PF 5 1500.00 4848.00 4848.59 4848.59 0.000199 0.27 2394.88 1556.04 0.07 Fort Lupton Gray 5829.25* PF 6 3000.00 4848.00 4849.18 4849.19 0.000273 0.47 3326.86 1578.09 0.09 Fort Lupton Gray 5829.25' PF 7 6000.00 4848.00 4850.01 4850.03 0.000382 0.74 4649.56 1656.50 0.11 Fort Lupton Gray 5829.25* PF 8 8000.00 4848.00 4850.43 4850.46 0.000448 0.89 5368.16 1734.49 0.12 Fort Lupton Gray 5829.25* PF 9 10000.00 4848.00 4850.80 4850.84 0.000504 1.02 6018.33 1802.11 0.13 ''. Fort Lupton Gray 5658.5* PF 1 26000.00 4848.00 4852.49 4852.59 0.000970 1.00 10697.64 3474.57 0.17 Fort Lupton Gray 5658.5' PF 2 29000.00 4848.00 4852.87 4852.97 0.000913 1.18 12186.25 4179.71 0.17 Fort Lupton Gray 5658.5' PF 3 50.00 4848.00 4847.31 4847.31 0.000055 457.05 1484.02 0.00 Fort Lupton Grav 5658.5* PF 4 500.00 4848.00 4847.91 4847.91 0.000150 1353.98 1495.58 0.00 Fort Lupton Gray 5658.5' PF 5 1500.00 4848.00 4848.52 4848.53 0.000241 0.27 2291.76 1558.13 0.07 Fort Lupton Gray 5658.5* PF 6 3000.00 4848.00 4849.09 4849.10 0.000329 0.48 3188.61 1584.29 0.09 Fort Lupton Gray 5658.5• PF 7 6000.00 4848.00 4849.88 4849.91 0.000471 0.78 4471.27 1700.96 0.12 Fort Lupton Gray 5658.5' PF 8 8000.00 4848.00 4850.28 4850.32 0.000552 0.81 5173.48 1809.67 0.13 'Fort Lupton Gray 5658.5* PF 9 10000.00 4848.00 4850.63 4850.68 0.000620 0.81 5826.48 1930.68 0.13 Fort Lupton Gray 5487.75* PF 1 26000.00 4848.00 4852.18 4852.29 0.001135 1.28 10311.34 3591.88 0.19 Fort Lupton Gray 5487.75* PF 2 29000.00 4848.00 4852.58 4852.68 0.001146 1.51 11864.25 4321.97 0.20 Fort Lupton Gray 5487.75* PF 3 50.00 4848.00 4847.29 4847.29 0.000070 423.35 1464.75 0.00 Fort Lupton Gray 5487.75' PF 4 500.00 4848.00 4847.86 4847.86 0.000186 1265.17 1484.86 0.00 Fort Lupton Gray 5487.75* PF 5 1500.00 4848.00 4848.44 4848.45 0.000298 0.27 2150.10 1555.75 0.08 Fort Lupton Gray 5487.75* PF 6 3000.00 4848.00 4848.98 4849.00 0.000405 0.50 3002.37 1592.04 0.10 Fort Lupton Gray 5487.75* PF 7 6000.00 4848.00 4849.72 4849.75 0.000588 0.69 4244.28 1789.23 0.13 Fort Lupton Gray 5487.75* PF 8 8000.00 4848.00 4850.10 4850.14 0.000681 0.86 4935.62 1886.47 0.14 Fat Lupton Gray 5487.75* PF 9 10000.00 4848.00 4850.42 4850.47 0.000757 1.00 5565.57 1970.41 0.15 Fort Lupton Gray 5317 PF 1 26000.00 4848.00 4851.78 4851.90 0.001562 1.70 9276.58 3379.64 0.23 Fort Lupton Gray 5317 PF 2 29000.00 4848.00 4852.10 4852.22 0.002332 2.32 10557.70 4946.47 0.29 Fort Lupton Gray 5317 PF 3 50.00 4848.00 4847.26 4847.26 0.000117 349.45 1331.57 0.00 Fort Lupton Gray 5317 PF 4 500.00 4848.00 4847.79 4847.79 0.000298 1053.04 1336.88 0.00 Fort Lupton Gray 5317 PF 5 1500.00 4848.00 4848.32 4848.33 0.000502 0.28 1794.89 1472.60 0.09 Fort Lupton Grey 5317 PF 6 3000.00 4848.00 4848.82 4848.84 0.000699 0.56 2564.12 1622.47 0.13 Fort Lupton Gray 5317 PF 7 6000.00 4848.00 4849.49 4849.53 0.000946 0.96 3719.51 1810.39 0.16 Fort Lupton Gray 5317 PF 8 8000.00 4848.00 4849.84 4849.89 0.001066 1.17 4356.02 1903.46 0.18 HEC-RAS Plan: Plan 06 River South Platte Reach: Fort Lupton Gray (Continued) Reach River Ste Profile Q Total Min Ch El W.S. Elev Cdt W.S. E.G. Elev E.G. Slope Vet Clint Flow Area Top Width Froude S Chl (ds) (ft) (ft) (ft) (ft) (MI) (Ms) (s0. ft) (ft) Fort Lupton Gray 5317 PF 9 10000.00 4848.00 4850.13 4850.20 0.001174 1.10 4939.10 2030.92 0.18 Fort Lupton Gray 5150.33* PF 1 26000.00 4848.00 4851.59 4851.67 0.001003 1.40 11551.69 3727.03 0.18 Fort Lupton Gray 5150.33* PF 2 29000.00 4848.00 4851.83 4851.92 0.001205 1.67 12483.65 4356.29 0.21 Fort Lupton Gray 5150.33* PF 3 50.00 4848.00 4847.25 4847.25 0.000072 465.51 1895.38 0.00 Fort Lupton Gray 5150.33* PF 4 500.00 4848.00 4847.75 4847.75 0.000177 1424.40 1923.09 0.00 Fort Lupton Gray 5150.33* PF S 1500.00 4848.00 4848.26 4848.27 0.000286 0.20 2444.18 2097.58 0.07 Fort Lupton Grav 5150.33* PF 6 3000.00 4848.00 4848.74 4848.75 0.000391 0.42 3471.04 2250.97 0.10 Fort Lupton Gray 5150.33* PF 7 6000.00 4848.00 4849.38 4849.40 0.000528 0.72 4980.92 2426.81 0.12 Fort Lupton Gray 5150.33* PF 8 8000.00 4848.00 4849.71 4849.74 0.000594 0.88 5799.98 2514.09 0.13 Fort Lupton Gray 5150.33* PF 9 10000.00 4848.00 4850.00 4850.04 0.000655 0.85 6538.39 2639.60 0.14 Fort Lupton Gray 4983.66* PF 1 26000.00 4848.00 4851.40 4851.49 0.001009 1.44 11426.32 3649.94 0.19 Fort Lupton Gray 4983.66* PF 2 29000.00 4848.00 4851.63 4851.72 0.001045 1.58 12257.40 3811.64 0.19 Fort Lupton Gray 4983.66* PF 3 50.00 4848.00 4847.23 4847.23 0.000075 472.35 2034.37 0.00 Fort Lupton Gray 4983.66* PF 4 500.00 4848.00 4847.72 4847.72 0.000178 1458.05 2052.39 0.00 Fort Lupton Gray 4983.68* PF 5 1500.00 4848.00 4848.21 4848.22 0.000287 0.17 2490.85 2221.16 0.07 Fort Lupton Gray 4983.66* PF 6 3000.00 4848.00 4848.67 4848.68 0.000392 0.41 3524.75 2337.05 0.09 Fort Lupton Gray 4983.66` PF 7 6000.00 4848.00 4849.29 4849.31 0.000531 0.71 5020.08 2491.70 0.12 Fat Lupton Gray 4983.66* PF 8 8000.00 4848.00 4849.61 4849.64 0.000603 0.83 5823.92 2579.04 0.13 Fort Lupton Gray 4983.66* PF 9 10000.00 4848.00 4849.88 4849.92 0.000666 0.87 6545.70 2681.07 0.14 Fort Lupton Gray 4817.* PF 1 26000.00 4648.00 4851.21 4851.30 0.001141 1.55 10962.88 3552.30 0.20 Fort Lupton Gray 4817.* PF 2 29000.00 4848.00 4851.42 4851.52 0.001175 1.69 11747.63 3718.90 0.20 Fort Lupton Gray 4817.* PF 3 50.00 4848.00 4847.22 4847.22 0.000094 443.65 2058.01 0.00 Fort Lupton Gray 4817.* PF 4 500.00 4848.00 4847.68 4847.69 0.000211 1392.04 2071.59 0.00 Fort Lupton Gray 4817.* PF 5 1500.00 4848.00 4848.15 4848.16 0.000337 0.15 2377.52 2260.30 0.07 Fort Lupton Gray 4817.* PF 6 3000.00 4848.00 4848.59 4848.60 0.000460 0.43 3370.19 2358.40 0.10 Fort Lupton Gray 4817.* PF 7 6000.00 4648.00 4849.18 4849.21 0.000621 0.74 4797.51 2505.28 0.13 Fort Lupton Gray 4817.* PF 8 8000.00 4848.00 4849.48 4849.52 0.000717 0.88 5567.27 2625.50 0.14 Fort Lupton Grey 4817.* PF 9 10000.00 4848.00 4849.75 4849.79 0.000814 0.98 6275.53 2798.90 0.15 Fort Lupton Gray 4650.33* PF 1 26000.00 4848.00 4850.98 4851.08 0.001286 1.64 10389.94 3459.44 0.21 Fort Lupton Gray 4650.33* PF 2 29000.00 4848.00 4851.19 4851.29 0.001319 1.78 11123.37 3589.76 0.22 Fort Lupton Gray 4650.33* PF 3 50.00 4848.00 4847.20 4847.20 0.000125 402.29 2056.72 0.00 Fort Lupton Gray 4650.33* PF 4 500.00 4848.00 4847.64 4847.65 0.000253 1300.64 2069.31 0.00 Fort Lupton Gray 4650.33* PF 5 1500.00 4848.00 4848.09 4848.09 0.000400 0.11 2221.21 2279.63 0.07 Fort Lupton Gray 4650.33* PF 6 3000.00 4848.00 4848.50 4848.51 0.000543 0.42 3161.02 2367.21 0.11 Fort Lupton Gray 4650.33* PF 7 6000.00 4848.00 4849.05 4849.08 0.000763 0.78 4536.61 2632.02 0.14 Fort Lupton Gray 4650.33* PF 8 8000.00 4848.00 4849.34 4849.38 0.000870 0.93 5304.08 2771.84 0.16 Fort Lupton Gray 4650.33* PF 9 10000.00 4848.00 4849.59 4849.63 0.000934 1.04 5995.93 2840.73 0.17 Fort Lupton Grav 4483.66* PF 1 26000.00 4848.00 4850.72 4850.83 0.001480 1.72 9877.83 3374.70 0.22 Fort Lupton Gray 4483.66* PF 2 29000.00 4848.00 4850.92 4851.04 0.001524 1.87 10564.71 3454.05 0.23 Fort Lupton Gray 4483.66* PF 3 50.00 4848.00 4847.19 4847.19 0.000044 544.48 2041.30 0.00 Fort Lupton Gray 4483.66* PF 4 500.00 4848.00 4847.60 4847.60 0.000206 1376.72 2056.61 0.00 Fort Lupton Gray 4483.66* PF 5 1500.00 4848.00 4848.01 4848.02 0.000395 0.03 2226.57 2339.83 0.05 Fort Lupton Gray 4483.66* PF 6 3000.00 4848.00 4848.39 4848.41 0.000586 0.38 3140.50 2504.55 0.11 Fort Lupton Gray 4483.66* PF 7 6000.00 4848.00 4848.91 4848.94 0.000811 0.76 4482.03 2668.69 0.15 Fort Lupton Gray 4483.66* PF 8 8000.00 4848.00 4849.18 4849.22 0.000913 0.91 5199.08 2740.21 0.16 Fort Lupton Gray 4483.66* PF 9 10000.00 4848.00 4849.41 4849.46 0.000996 1.04 5847.15 2820.48 0.17 Fort Lupton Gray 4317 PF 1 26000.00 4848.00 4850.36 4850.51 0.002167 1.94 8683.15 3240.52 0.27 Fort Lupton Gray 4317 PF 2 29000.00 4848.00 4850.55 4850.71 0.002224 2.12 9310.06 3326.76 0.27 Fort Lupton Gray 4317 PF 3 50.00 4848.00 4847.17 4847.17 0.000228 330.33 1958.96 0.00 Fort Lupton Gray 4317 PF 4 500.00 4848.00 4847.55 4847.55 0.000465 1090.84 2097.12 0.00 Fort Lupton Gray 4317 PF 5 1500.00 4848.00 4847.92 4847.93 0.000722 1894.44 2233.85 0.00 Fort Lupton Gray 4317 PF 6 3000.00 4848.00 4848.26 4848.28 0.000951 0.37 2729.75 2549.55 0.13 Fort Lupton Gray 4317 PF 7 6000.00 4848.00 4848.73 4848.76 0.001218 0.82 3944.60 2639.21 0.17 Fort Lupton Gray 4317 PF 8 8000.00 4848.00 4848.97 4849.02 0.001352 1.05 4589.40 2685.58 0.19 Fort Lupton Gray 4317 PF 9 10000.00 4848.00 4849.18 4849.24 0.001465 1.19 5171.38 2762.42 0.20 Fort Lupton Gray 4150.33* PF 1 26000.00 4847.17 4849.93 4850.08 0.002960 2.58 8328.64 3616.68 0.32 Fat Lupton Gray 4150.33* PF 2 29000.00 4847.17 4850.10 4850.26 0.003145 2.81 8989.38 3882.72 0.33 Fort Lupton Gray 4150.33* PF 3 50.00 4847.17 4847.10 4847.05 4847.10 0.001026 218.85 2168.19 0.00 Fat Lupton Gray 4150.33* PF 4 500.00 4847.17 4847.46 4847.46 0.000639 0.32 1052.61 2447.76 0.11 Fort Lupton Gray 4150.33* PF 5 1500.00 4847.17 4847.78 4847.79 0.000932 0.64 1860.20 2571.76 0.15 Fat Lupton Gray 4150.33* PF 6 3000.00 4847.17 4848.07 4848.09 0.001231 0.94 2635.58 2671.27 0.18 Fort Lupton Gray 4150.33* PF 7 6000.00 4847.17 4848.49 4848.53 0.001597 1.27 3774.02 2820.45 0.21 Fort Lupton Gray 4150.33* PF 8 8000.00 4847.17 4848.70 4848.75 0.001772 1.44 4389.71 2906.33 0.23 Fort Lupton Gray 4150.33* PF 9 10000.00 4847.17 4848.89 4848.96 0.001922 1.59 4951.28 2987.52 0.24 Fat Lupton Gray 3983.66* PF 1 26000.00 4846.33 4849.10 4849.34 0.006933 3.90 6613.63 3816.16 0.49 Fort Lupton Gray 3983.66* PF 2 29000.00 4846.33 4849.30 4849.54 0.006052 3.88 7395.22 3879.81 0.46 Fort Lupton Gray 3983.66* PF 3 50.00 4846.33 4846.46 4846.46 4846.54 0.091540 2.26 22.12 2352.30 1.12 Fort Lupton Gray 3983.66* PF 4 500.00 4846.33 4847.09 4847.09 4847.17 0.011544 2.55 346.43 2503.59 0.53 Fat Lupton Gray 3983.66* PF 5 1500.00 4846.33 4847.22 4847.22 4847.34 0.021937 3.81 674.32 2645.72 0.75 Fort Lupton Gray 3983.66* PF 6 3000.00 4846.33 4847.35 4847.35 4847.51 0.026501 4.49 1026.88 2741.23 0.84 HEC-RAS Plan: Plan 06 River South Platte Reach: Fort Lupton Gray (Continued) Reach River 81a Profile 0 Total Min Ch El W.S. 51ev Grit W.S. E.G. Bev E.G. Slope Vet Chnl Flow Area Top Width Froude *CM (cfs) (ft) (ft) (ft) (ft) (MI). (Ma) (sq ft) Eft) Fort Lupton Gray 3983.66' PF 7 6000.00 4846.33 4847.53 4847.53 4847.79 0.031736 5.32 1524.15 2823.84 0.93 Fort Lupton Gray 3983.66* PF 8 8000.00 4846.33 4847.63 4847.63 4847.95 0.032913 5.65 1811.91 2868.35 0.96 Fort Lupton Gray 3983.66* PF 9 10000.00 4846.33 4847.73 4847.73 4848.09 0.032089 5.79 2109.95 2925.63 0.96 Fort Lupton Gray 3817.* PF 1 26000.00 4845.50 4848.97 4849.03 0.000638 1.42 13558.66 3935.58 0.16 Fat Lupton Gray 3817.* PF 2 29000.00 4845.50 4849.17 4849.23 0.000664 1.53 14371.67 4152.47 0.16 Fort Lupton Gray 3817.* PF 3 50.00 4845.50 4843.96 4843.96 0.000000 2227.59 2162.47 0.00 Fort Lupton Gray 3817.1 PF 4. 500.00 4845.50 4845.10 4845.10 0.000002 2546.13 2176.84 0.00 Fort Lupton Gray 3817.* PF 5 1500.00 4845.50 4845.99 4846.00 0.000072 0.15 3808.53 2340.27 0.04 Fort Lupton Gray 3817.' PF 6 3000.00 4845.50 4846.46 4846.46 0.000127 0.29 4938.98 2663.49 0.06 Fort Lupton Gray 3817.* PF 7 6000.00 4845.50 4847.00 4847.01 0.000277 0.55 6522.58 3036.64 0.09 Fort Lupton Gray 3817.* PF 8 8000.00 4845.50 4847.29 4847.31 0.000335 0.66 7419.11 3130.59 0.10 Fat Lupton Grav 3817.' PF 9 10000.00 4845.50 4847.55 4847.57 0.000393 0.77 8247.29 3286.71 0.11 Fort Lupton Gray 3650.33' PF 1 26000.00 4844.67 4848.86 4848.92 0.000659 1.68 13690.80 4266.37 0.16 Fort Lupton Gray 3650.33' PF 2 29000.00 4844.67 4849.05 4849.12 0.000682 1.77 14527.54 4323.29 0.17 Fort Lupton Gray - 3650.33' PF 3 50.00 4844.67 4843.96 4843.96 0.000000 1146.30 2170.16 0.00 Fort Lupton Gray 3650.33' PF 4 500.00 4844.67 4845.10 4845.10 0.000012 0.06 1503.76 2310.62 0.02 Fort Lupton Gray 3650.33' PF 5 1500.00 4844.67 4845.97 4845.98 0.000195 0.42 3071.78 2949.84 0.07 Fort Lupton Grav 3650.33' PF 6 3000.00 4844.67 4846.43 4846.43 0.000268 0.58 4460.23 3181.71 0.09 Fort Lupton Gray 3650.33* PF 7 6000.00 4844.67 4846.94 4846.95 0.000420 0.82 6190.26 3572.11 0.12 Fat Lupton Gray 3650.33' PF 8 8000.00 4844.67 4847.22 4847.24 0.000462 0.90 7222.54 3700.86 0.12 Fat Lupton Gray 3650.33* PF 9 10000.00 4844.67 4847.47 4847.50 0.000499 1.01 8167.67 3809.34 0.13 Fort Lupton Gray 3483.66' PF 1 26000.00 4843.83 4848.75 4848.80 0.000665 1.89 13857.72 4398.09 0.17 Fat Lupton Gray 3483.66' PF 2 29000.00 4843.83 4848.94 4849.00 0.000689 1.99 14702.07 4447.09 0.17 Fort Lupton Gray 3483.66' PF 3 50.00 4843.83 4843.96 4843.96 0.000159 0.09 159.24 2215.72 0.05 Fort Lupton Gray 3483.66' PF 4 500.00 4843.83 4845.09 4845.10 0.000229 0.43 912.38 2840.16 0.08 Fort Lupton. Gray 3483.66* PF 5 1500.00 4843.83 4845.93 4845.93 0.000366 0.72 2768.01 3502.46 0.11 Fat Lupton Gray 3483.66* PF 6 3000.00 4843.83 4846.37 4846.38 0.000343 0.77 4367.10 3627.31 0.11 Fort Lupton Gray 3483.66* PF 7 6000.00 4843.83 4846.87 4846.88 0.000447 0.99 6181.36 3746.31 0.12 Fort Lupton Gray 3483.66' PF 8 8000.00 4843.83 4847.14 4847.16 0.000479 1.12 7227.02 3808.55 0.13 Fort Lupton Grav 3483.66* PF 9 10000.00 4843.83 4847.39 4847.41 0.000515 1.25 8166.63 3882.34 0.14 Fort Lupton Gray 3317 PF 1 26000.00 4843.00 4848.63 4848.69 0.000669 2.08 13946.10 4486.71 0.17 Fort Lupton Gray 3317 PF 2 29000.00 4843.00 4848.82 4848.88 0.000695 2.18 14787.24 4532.45 0.18 Fort Lupton Gray 3317 PF 3 50.00 4843.00 4843.95 4843.95 0.000019 0.10 432.36 2258.28 0.02 Fort Lupton Gray 3317 PF 4 500.00 4843.00 4845.07 4845.07 0.000088 0.34 1483.98 2980.52 0.05 Fort Lupton Gray 3317 PF 5 1500.00 4843.00 4845.89 4845.89 0.000174 0.57 3302.91 3240.65 0.08 Fort Lupton Gray 3317 PF 6 3000.00 4843.00 4846.33 4846.33 0.000225 0.74 4757.14 3364.09 0.09 Fat Lupton Gray 3317 PF 7 6000.00 4843.00 4846.80 4846.81 0.000363 1.07 6376.89 3518.19 0.12 Fort Lupton Gray 3317 PF 8 8000.00 4843.00 4847.07 4847.09 0.000423 1.24 7347.78 3826.41 0.13 Fort Lupton Gray 3317 PF 9 10000.00 4843.00 4847.30 4847.33 0.000469 1.37 8271.05 3954.84 0.14 Fort Lupton Gray 3165.75' PF 1 26000.00 4843.00 4848.48 4848.55 0.000901 2.41 13172.75 5387.12 0.20 Fort Lupton Gray 3165.75' PF 2 29000.00 4843.00 4848.67 4848.74 0.000915 2.49 14171.74 5548.75 0.20 Fort Lupton Gray 3165.75' PF 3 50.00 4843.00 4843.94 4843.94 0.000220 0.35 184.21 2113.68 0.07 Fort Lupton Gray 3165.75' PF 4 500.00 4843.00 4845.04 4845.05 0.000272 0.60 958.49 2673.72 0.09 Fort Lupton Gray 3165.75' PF 5 1500.00 4843.00 4845.84 4845.85 0.000403 0.88 2506.32 3176.99 0.12 Fort Lupton Gray 3165.75' PF 6 3000.00 4843.00 4846.27 4846.28 0.000420 1.04 3898.88 3399.14 0.12 Fort Lupton Gray 3165.75' PF 7 6000.00 4843.00 4846.71 4846.73 0.000613 1.41 5478.28 3752.93 0.15 Fort Lupton Gray 3165.75' PF 8 8000.00 4843.00 4846.97 4846.99 0.000667 1.57 6457.85 3884.09 0.16 i Fort Lupton Gray 3165.75' PF 9 10000.00 4843.00 4847.20 4847.23 0.000708 1.70 7360.01 4011.70 0.17 Fort Lupton Gray 3014.5* PF 1 26000.00 4843.00 4848.28 4848.35 0.001139 2.68 12759.28 5601.06 0.23 Fort Lupton Gray 3014.5' PF 2 29000.00 4843.00 4848.46 4848.54 0.001131 2.74 13773.46 5686.25 0.23 Fort Lupton Gray 3014.5' PF 3 50.00 4843.00 4843.87 4843.87 0.000790 0.65 77.42 1706.27 0.14 Fort Lupton Gray 3014.5' PF 4 500.00 4843.00 4844.95 4844.96 0.000908 1.07 596.62 2524.01 0.16 Fort Lupton Gray 3014.5* PF 5 1500.00 4843.00 4845.71 4845.73 0.001154 1.49 1692.69 3074.21 0.20 Fort Lupton Gray 3014.5' PF 6 3000.00 4843.00 4846.16 4846.18 0.000833 1.47 3176.04 3545.69 0.17 Fort Lupton Gray 3014.5* PF 7 6000.00 4843.00 4846.55 4846.58 0.001107 1.89 4622.84 3812.86 0.20 Fort Lupton Gray 3014.5' PF 8 8000.00 4843.00 4846.80 4846.84 0.001120 2.02 5585.14 3963.77 0.21 Fort Lupton Gray 3014.5' PF 9 10000.00 4843.00 4847.02 4847.06 0.001136 2.14 6478.69 4177.59 0.21 Fort Lupton Gray 2883.25' PF 1 26000.00 4843.00 4847.99 4848.06 0.001474 2.97 12083.68 5626.80 0.26 Fat Lupton Gray 286325* PF 2 29000.00 4843.00 4848.17 4848.25 0.001427 3.01 13121.95 5713.57 0.25 Fat Lupton Gray 2863.25' PF 3 50.00 4843.00 4843.64 4843.65 0.001845 0.84 59.48 1631.48 0.20 Fat Lupton Gray 2863.25' PF 4 500.00 4843.00 4844.40 4844.55 0.010874 3.11 160.77 1816.25 0.55 Fort Lupton Gray 2863.25' PF 5 1500.00 4843.00 4845.00 4845.20 0.012567 4.03 488.69 2580.93 0.62 Fort Lupton Gray 2863.25' PF 6 3000.00 4843.00 4845.58 4845.58 4845.76 0.009836 4.34 1270.99 3235.72 0.57 Fort Lupton Gray 286325* PF 7 6000.00 4843.00 4846.15 4846.22 0.003330 3.04 3257.12 3746.35 0.35 Fort Lupton Gray 2863.25* PF B 8000.00 4843.00 4846.44 4846.50 0.002557 2.88 4380.82 4076.19 0.31 Fort Lupton Gray 2863.25* PF 9 10000.00 4843.00 4846.68 4846.74 0.002204 2.83 5410.82 4378.46 0.29 Fort Lupton Gray 2712 PF 1 26000.00 4843.00 4847.74 4847.79 0.000818 2.17 14417.54 5540.85 0.19 Fort Lupton Gray 2712 PF 2 29000.00 4843.00 4847.92 4847.98 0.000837 2.25 15429.17 5658.22 0.19 Fort Lupton Gray 2712 PF 3 50.00 4843.00 4843.46 4843.46 0.000664 0.42 143.87 547.95 0.12 Fort Lupton Gray 2712 PF 4 500.00 4843.00 4844.27 4844.28 0.000434 0.59 964.67 1576.17 0.11 HEC-RAS Plan: Plan 06 River: South Platte Reach: Fort Lupton Gras (Continued) Reach River Ste Profie C1 Total Mnt Ch El W.S. Elev Crit W.S. E.G. Elev E.G. Slope Vel Chni Flow Area Top Vlildth Froude • Chi ( ) (6) (6) (ft) (ft) (8M) (Ma) (eq ft) (ft) Fat Lupton Gray 2712 PF 5 1500.00 4843.00 4844.87 4844.88 0.000487 0.77 2197.85 2540.46 0.12 Fat Lupton Gray 2712 PF 6 3000.00 4843.00 4845.33 4845.34 0.000544 0.97 3541.07 3229.13 0.13 Fat Lupton Gray 2712 PF 7 6000.00 4843.00 4845.92 4845.94 0.000608 1.26 5629.66 3899.95 0.15 Fat Lupton Gray 2712 PF 8 8000.00 4843.00 4846.21 4846.23 0.000646 1.40 6800.80 4237.99 0.16 Fat Lupton Gray 2712 PF 9 10000.00 4843.00 4846.45 4846.47 0.000674 1.52 7859.72 4489.01 0.16 Fort Lupton Gray 2531.2• PF 1 26000.00 4842.67 4847.58 4847.63 0.000845 2.18 14378.83 5626.35 0.19 Fort Lupton Gray 2531.2' PF 2 29000.00 4842.67 4847.76 4847.82 0.000863 2.27 15386.14 5732.48 0.20 Fort Lupton Gray 2531.2' PF 3 50.00 4842.67 4843.29 4843.29 0.001126 0.63 100.97 407.63 0.16 Fort Lupton Gray 2531.2' PF 4 500.00 4842.67 4844.19 4844.19 0.000484 0.63 935.88 1588.04 0.11 Fort Lupton Gray 2531.2' PF 5 1500.00 4842.67 4844.78 4844.79 0.000523 0.79 2175.33 2602.85 0.12 Fort Lupton Gray 2531.2* PF 6 3000.00 4842.67 4845.23 4845.24 0.000573 0.99 3519.66 3297.38 0.14 Fort Lupton Gray 25312' PF 7 6000.00 4842.67 4845.80 4845.82 0.000634 1.27 5614.86 3994.00 0.15 Fort Lupton Grey 2531.2` PF 8 8000.00 4842.67 4846.08 4846.10 0.000672 1.42 6783.93 4331.69 0.16 Fat Lupton Gray 2531.2* PF 9 10000.00 4842.67 4846.32 4846.34 0.000700 1.54 7844.94 4592.19 0.16 Fat Lupton Gray 2350.4' PF 1 26000.00 4842.33 4847.42 4847.47 0.000870 2.20 14344.05 5703.60 0.19 Fort Lupton Gray 2350.4' PF 2 29000.00 4842.33 4847.59 4847.65 0.000886 2.28 15346.56 5798.61 0.20 Fat Lupton Gray 2350.4' PF 3 50.00 4842.33 4843.03 4843.04 0.001596 0.80 62.60 139.46 0.19 Fort Lupton Gray 2350.4* PF 4 500.00 4842.33 4844.09 4844.09 0.000552 0.67 897.48 1584.83 0.12 Fort Lupton Gray 2350.4• PF 5 1500.00 4842.33 4844.67 4844.68 0.000566 0.82 2145.98 2673.45 0.13 Fort Lupton Gray 2350.4' PF 6 3000.00 4842.33 4845.11 4845.13 0.000601 1.03 3502.55 3374.24 0.14 Fat Lupton Gray 2350.4' PF 7 6000.00 4842.33 4845.68 4845.70 0.000664 1.31 5606.61 4114.76 0.15 Fat Lupton Gray 2350.4' PF 8 8000.00 4842.33 4845.95 4845.97 0.000695 1.45 6777.19 4431.90 0.16 Fort Lupton Grey 2350.4• PF 9 10000.00 4842.33 4846.18 4846.21 0.000726 1.57 7833.94 4699.85 0.17 Fort Lupton Gray 2169.6* PF 1 26000.00 4842.00 4847.25 4847.30 0.000897 2.22 14296.35 5777.47 0.20 Fort Lupton Gray 2169.6' PF 2 29000.00 4842.00 4847.42 4847.48 0.000915 2.31 15289.32 5876.46 0.20 Fort Lupton Gray 2169.6' PF 3 50.00 4842.00 4842.71 4842.72 0.001529 0.84 59.35 96.11 0.19 Fort Lupton Gray 2169.6' PF 4 500.00 4842.00 4843.97 4843.98 0.000626 0.72 853.20 1557.19 0.13 Fort Lupton Gray 2169.6` PF 5 1500.00 4842.00 4844.56 4844.57 0.000606 0.86 2112.61 2720.01 0.13 Fort Lupton Gray 2169.6* PF 6 3000.00 4842.00 4844.99 4845.01 0.000631 1.06 3474.63 3442.05 0.14 Fort Lupton Gray 2169.6* PF 7 6000.00 4842.00 4845.55 4845.57 0.000690 1.34 5586.93 4207.94 0.16 Fat Lupton Gray 2169.6` PF 8 8000.00 4842.00 4845.81 4845.84 0.000722 1.48 6757.26 4539.59 0.16 Fort Lupton Gray 2169.6* PF 9 10000.00 4842.00 4846.04 4846.07 0.000754 1.60 7817.57 4820.41 0.17 Fort Lupton Gray 1988.8` PF 1 26000.00 4841.67 4847.08 4847.13 0.000927 2.25 14241.63 5862.58 0.20 Fort Lupton Gray 1988.8* PF 2 29000.00 4841.67 4847.25 4847.30 0.000946 2.34 15229.32 5966.67 0.20 Fort Lupton Gras 1988.8* PF 3 50.00 4841.67 4842.41 4842.42 0.001550 0.86 57.91 91.30 0.19 Fort Lupton Gray 1988.8' PF 4 500.00 4841.67 4843.84 4843.85 0.000717 0.78 798.11 1492.66 0.14 Fort Lupton Gray 1988.8* PF 5 1500.00 4841.67 4844.44 4844.45 0.000649 0.90 2067.26 2749.79 0.14 Fort Lupton Gray 1988.8* PF 6 3000.00 4841.67 4844.87 4844.88 0.000661 1.10 3442.77 3510.09 0.15 Fort Lupton Gray 1988.8' PF 7 6000.00 4841.67 4845.41 4845.43 0.000717 1.37 5562.60 4308.04 0.16 Fort Lupton Gras 1988.8' PF 8 8000.00 4841.67 4845.67 4845.70 0.000751 1.51 6735.87 4657.89 0.17 Fort Lupton Gray 1988.8* PF 9 10000.00 4841.67 4845.89 4845.92 0.000785 1.63 7796.44 4952.91 0.17 Fort Lupton Gray 1808.' PF 1 26000.00 4841.33 4846.90 4846.95 0.000960 2.28 14182.43 5957.41 0.20 Fort Lupton Gray 1808.* PF 2 29000.00 4841.33 4847.06 4847.12 0.000982 2.37 15159.96 6065.99 0.21 Fort Lupton Gray 1808.' PF 3 50.00 4841.33 4842.11 4842.12 0.001468 0.86 57.81 87.31 0.19 Fort Lupton Gray 1808.' PF 4 500.00 4841.33 4843.69 4843.69 0.000838 0.84 725.08 1348.83 0.15 Fat Lupton Gray 1808.* PF 5 1500.00 4841.33 4844.31 4844.32 0.000704 0.95 2005.99 2781.91 0.15 Fort Lupton Gray 1808.` PF 6 3000.00 4841.33 4844.74 4844.75 0.000691 1.13 3408.53 3587.26 0.15 Fort Lupton Gray 1808.' PF 7 6000.00 4841.33 4845.27 4845.29 0.000742 1.40 5542.13 4418.26 0.16 Fort Lupton Gray 1808.' PF 8 8000.00 4841.33 4845.53 4845.55 0.000780 1.54 6715.05 4785.34 0.17 Fort Lupton Gray 1808.' PF 9 10000.00 4841.33 4845.74 4845.77 0.000811 1.66 7774.99 5055.31 0.18 Fort Lupton Gray 1627.2* PF 1 26000.00 4841.00 4846.71 4846.77 0.001000 2.32 14106.24 6072.67 0.21 Fort Lupton Gray 1627.2* PF 2 29000.00 4841.00 4846.87 4846.93 0.001024 2.41 15079.01 6187.20 0.21 Fort Lupton Gray 1627.2' PF 3 50.00 4841.00 4841.81 4841.82 0.001465 0.88 56.86 83.60 0.19 Fat Lupton Gray 1627.2' PF 4 500.00 4841.00 4843.51 4843.52 0.000975 0.90 648.35 1181.20 0.16 Fort Lupton Grav 1627.2' PF 5 1500.00 4841.00 4844.16 4844.18 0.000758 1.00 1929.58 2764.89 0.15 Fort Lupton Gray 16272' PF 6 3000.00 4841.00 4844.60 4844.62 0.000723 1.17 3359.59 3655.24 0.16 Fort Lupton Gray 1627.2' PF 7 6000.00 4841.00 4845.13 4845.15 0.000771 1.44 5511.55 4541.32 0.17 Fort Lupton Gray 1627.2* PF 8 8000.00 4841.00 4845.37 4845.40 0.000812 1.58 6686.67 4933.65 0.17 Fort Lupton Gray 1827.2' PF 9 10000.00 4841.00 4845.58 4845.61 0.000840 1.69 7741.98 5151.19 0.18 Fort Lupton Gray 1446.4' PF 1 26000.00 4840.67 4846.51 4846.57 0.001047 2.36 14022.21 6212.08 0.21 Fort Lupton Gray 1446.4* PF 2 29000.00 4840.67 4846.67 4846.73 0.001075 2.46 14984.03 6334.46 0.22 Fort Lupton Gray 1446.4• PF 3 50.00 4840.67 4841.52 4841.53 0.001467 0.89 55.88 80.09 0.19 Fort Lupton Gray 1446.4* PF 4 500.00 4840.67 4843.30 4843.32 0.001090 0.94 576.88 991.64 0.17 Fort Lupton Gray 1446.4` PF 5 1500.00 4840.67 4844.01 4844.02 0.000826 1.05 1827.10 2705.24 0.16 Fort Lupton Gray 1446.4' PF 6 3000.00 4840.67 4844.46 4844.47 0.000759 1.21 3298.59 3724.12 0.16 Fat Lupton Gray 1446.4' PF 7 6000.00 4840.67 4844.97 4844.99 0.000804 1.47 5471.27 4681.65 0.17 Fat Lupton Gray 1446.4' PF 8 8000.00 4840.67 4845.21 4845.24 0.000843 1.61 6649.28 5047.58 0.18 Fort Lupton Gray 1446.4' PF 9 10000.00 4840.67 4845.42 4845.45 0.000871 1.72 7704.13 5264.24 0.18 Fort Lupton Gray 1265.6' PF 1 26000.00 4840.33 4846.31 4846.37 0.001106 2.41 13909.62 6368.48 0.22 Fort Lupton Gray 1265.6' PF 2 29000.00 4840.33 4846.46 4846.52 0.001130 2.50 14862.16 6465.66 0.22 HEC-RAS Plan: Plan 06 River: South Platte Reach: Fort Lupton Gray (Continued) Reach River Sta Profile O Total Min Ch El W.S. Elev Grit W.S. E.G. Elev E.G. Slope Vet Chi Flow Area Top WidBt Froude # Chl ( ) (ft) (ft) (ft) (ft) (Mt) (Ns) (ea ft) (6) Fort Lupton Grav 1265.6* PF 3 50.00 4840.33 4841.23 4841.24 0.001416 0.90 55.55 76.88 0.19 Fort Lupton Grav 1265.6'. PF 4 500.00 4840.33 4843.09 4843.10 0.001132 0.94 537.32 723.15 0.17 Fort Lupton Grav 1285.6* PF 5 1500.00 4840.33 4843.83 4843.85 0.000921 1.12 1688.93 2593.64 0.17 Fat Lupton Grav 1265.6' PF 6 3000.00 4840.33 4844.30 4844.32 0.000798 1.25 3224.22 3797.44 0.16 Fort Lupton Grav 1285.6' PF 7 6000.00 4840.33 4844.81 4844.84 0.000840 1.51 5424.41 4837.62 0.17 Fort Lupton Grav 1265.6" PF 8 8000.00 4840.33 4845.05 4845.07 0.000875 1.64 6605.07 5161.44 0.18 Fat Lupton Grav 1265.6* PF 9 10000.00 4840.33 4845.25 4845.28 0.000909 1.76 7651.54 5396.04 0.19 Fort Lupton Grav 1084.8` PF 1 26000.00 4840.00 4846.09 4846.15 0.001168 2.46 13781.84 6518.34 0.22 Fort Lupton Grav 1084.8* PF 2 29000.00 4840.00 4846.23 4846.30 0.001191 2.54 14723.79 6603.05 0.23 Fort Lupton Grav 1084.8' PF 3 50.00 4840.00 4840.95 4840.96 0.001395 0.91 54.92 73.84 0.19 Fat Lupton Grav 1084.8' PF 4 500.00 4840.00 4842.86 4842.88 0.001124 0.91 546.93 622.09 0.17 Fort Lupton Grav 1084.8* PF 5 1500.00 4840.00 4843.64 4843.66 0.001039 1.18 1519.54 2345.49 0.18 Fort Lupton Gray 1084.& PF 6 3000.00 4840.00 4844.14 4844.16 0.000849 1.29 3121.16 3858.80 0.17 Fat Lupton Gray 1084.8* PF 7 6000.00 4840.00 4844.65 4844.67 0.000880 1.54 5364.29 4994.44 0.18 Fort Lupton Grav 1084.8* PF 8 8000.00 4840.00 4844.87 4844.90 0.000916 1.68 6543.46 5303.81 0.19 Fort Lupton Grav 1084.8* PF 9 10000.00 4840.00 4845.07 4845.10 0.000953 1.80 7585.44 5542.73 0.19 Fort Lupton Grav 904.000* PF 1 26000.00 4839.67 4845.86 4845.92 0.001237 2.50 13629.17 6666.20 0.23 Fort Lupton Grav 904.000* PF 2 29000.00 4839.67 4846.00 4846.06 0.001263 2.59 14563.30 6759.00 0.23 Fort Lupton Grav 904.000* PF 3 50.00 4839.67 4840.67 4840.68 0.001383 0.92 54.19 71.00 0.19 Fort Lupton Gray 904.000* PF 4 500.00 4839.67 4842.64 4842.66 0.001101 0.89 564.43 662.77 0.17 Fat Lupton Grav 904.000* PF 5 1500.00 4839.67 4843.42 4843.44 0.001157 1.24 1343.42 1914.45 0.19 Fort Lupton Grav 904.000* PF 6 3000.00 4839.67 4843.97 4843.99 0.000915 1.34 2982.34 3902.24 0.17 Fort Lupton Gray 904.000* PF 7 6000.00 4839.67 4844.47 4844.50 0.000921 1.58 5290.28 5135.73 0.18 Fort Lupton Grav 904.000* PF 8 8000.00 4839.67 4844.69 4844.72 0.000966 1.72 6464.97 5479.20 0.19 Fort Lupton Grav 904.000* PF 9 10000.00 4839.67 4844.88 4844.91 0.001005 1.84 7502.74 5706.83 0.20 Fort Lupton Grav 723.2• PF 1 26000.00 4839.33 4845.61 4845.67 0.001334 2.56 13431.77 6871.82 0.24 Fort Lupton Grav 723.2* PF 2 29000.00 4839.33 4845.74 4845.81 0.001365 2.65 14351.53 6972.12 0.24 Fort Lupton Grav 723.2* PF 3 50.00 4839.33 4840.40 4840.41 0.001327 0.93 54.05 68.36 0.18 Fort Lupton Grav 723.2* PF 4 500.00 4839.33 4842.43 4842.44 0.001098 0.87 578.02 701.80 0.17 Fort Lupton Grav 723.2• PF 5 1500.00 4839.33 4843.18 4843.20 0.001253 1.27 1213.40 1335.94 0.19 Fort Lupton Grav 723.2* PF 6 3000.00 4839.33 4843.77 4843.80 0.001010 1.39 2795.91 3915.36 0.18 Fort Lupton Gray 723.2* PF 7 6000.00 4839.33 4844.28 4844.31 0.000977 1.62 5192.49 5322.09 0.19 Fort Lupton Grav 723.2` PF 8 8000.00 4839.33 4844.50 4844.53 0.001025 1.76 6366.13 5662.12 0.20 Fort Lupton Grav 723.2* PF 9 10000.00 4839.33 4844.67 4844.71 0.001077 1.89 7390.25 5924.77 0.20 Fort Lupton Grav 542.400* PF 1 26000.00 4839.00 4845.34 4845.41 0.001431 2.60 13195.81 6940.06 0.24 Fort Lupton Grav 542.400* PF 2 29000.00 4839.00 4845.47 4845.54 0.001453 2.69 14087.95 6954.30 0.25 Fort Lupton Grav 542.400* PF 3 50.00 4839.00 4840.14 4840.15 0.001319 0.94 53.32 65.78 0.18 Fort Lupton Grav 542.400* PF 4 500.00 4839.00 4842.21 4842.22 0.001116 0.85 587.23 739.00 0.17 Fort Lupton Grav 542.400* PF 5 1500.00 4839.00 4842.92 4842.95 0.001304 1.27 1181.81 918.80 0.20 Fort Lupton Grav 542.400* PF 6 3000.00 4839.00 4843.55 4843.58 0.001182 1.48 2503.65 3787.07 0.20 Fort Lupton Gray 542.400* PF 7 6000.00 4839.00 4844.08 4844.11 0.001058 1.67 5053.60 5556.10 0.20 Fort Lupton Grav 542.400* PF 8 8000.00 4839.00 4844.28 4844.32 0.001122 1.82 6219.58 5950.56 0.20 Fort Lupton Gray 542.400* PF 9 10000.00 4839.00 4844.45 4844.49 0.001186 1.95 7236.57 6248.52 0.21 Fort Lupton Gray 361.600* PF 1 26000.00 4838.67 4845.05 4845.12 0.001578 2.67 12803.06 6916.96 0.26 Fort Lupton Grav 361.600* PF 2 29000.00 4838.67 4845.17 4845.25 0.001605 2.76 13658.34 6929.84 0.26 Fat Lupton Grav 361.600* PF 3 50.00 4838.67 4839.87 4839.89 0.001359 0.96 52.03 63.24 0.19 Fort Lupton Grav 361.600* PF 4 500.00 4838.67 4841.98 4842.00 0.001162 0.85 591.07 774.52 0.17 Fat Lupton Grav 361.600* PF 5 1500.00 4838.67 4842.66 4842.68 0.001397 1.28 1172.47 948.52 0.20 Fort Lupton Gray 361.600' PF 6 3000.00 4838.67 4843.28 4843.32 0.001513 1.61 2061.32 3174.22 0.22 Fat Lupton Grav 381.800' PF 7 6000.00 4838.67 4843.86 4843.89 0.001198 1.75 4838.28 5924.55 0.21 Fort Lupton Grav 361.600* PF 8 8000.00 4838.67 4844.05 4844.09 0.001276 1.91 6009.92 6368.36 0.22 Fort Lupton Grav 361.600* PF 9 10000.00 4838.67 4844.20 4844.25 0.001342 2.04 7010.17 6596.88 0.22 Fort Lupton Gray 180.800* PF 1 26000.00 4838.33 4844.71 4844.79 0.001883 2.83 12099.56 6885.93 0.28 Fort Lupton Grav 180.800* PF 2 29000.00 4838.33 4844.83 4844.91 0.001918 2.92 12907.18 6897.45 0.28 Fort Lupton Gray 180.800* PF 3 50.00 4838.33 4839.58 4839.60 0.001520 1.01 49.31 60.15 0.20 Fort Lupton Grav 180.800* PF 4 500.00 4838.33 4841.74 4841.75 0.001293 0.86 581.98 807.13 0.18 Fort Lupton Grav 180.800* PF 5 1500.00 4838.33 4842.36 4842.38 0.001638 1.33 1127.72 969.70 0.22 Fort Lupton Grav 180.800* PF 6 3000.00 4838.33 4842.95 4842.99 0.001863 1.72 1745.69 1125.66 0.24 Fat Lupton Grav 180.800* PF 7 6000.00 4838.33 4843.59 4843.63 0.001475 1.89 4467.06 6508.94 0.23 Fort Lupton Gray 180.800* PF 8 8000.00 4838.33 4843.77 4843.82 0.001531 2.03 5670.62 6793.53 0.24 Fort Lupton Grav 180.800* PF 9 10000.00 4838.33 4843.91 4843.96 0.001584 2.15 6656.85 6807.78 0.24 Fort Lupton Gray 0 PF 1 26000.00 4838.00 4844.22 4843.59 4844.34 0.003004 3.33 10397.03 6838.87 0.34 Fort Lupton Grav 0 PF 2 29000.00 4838.00 4844.33 4843.63 4844.46 0.003002 3.42 11172.34 6849.35 0.35 Fort Lupton Grav 0 PF 3 50.00 4838.00 4839.16 4838.62 4839.19 0.003004 1.30 38.47 53.91 0.27 Fort Lupton Grav 0 PF 4 500.00 4838.00 4841.36 4839.85 4841.38 0.003002 1.11 450.01 798.05 0.26 Fort Lupton Gray 0 PF 5 1500.00 4838.00 4841.91 4841.25 4841.95 0.003004 1.61 931.59 947.58 0.29 Fort Lupton Gray 0 PF 6 3000.00 4838.00 4842.47 4841.54 4842.53 0.003005 2.00 1497.29 1097.50 0.30 Fort Lupton Grav 0 PF 7 6000.00 4838.00 4843.14 4842.01 4843.23 0.003005 2.45 3061.18 6738.92 0.32 Fort Lupton Gray 0 PF 8 8000.00 4838.00 4843.32 4842.24 4843.40 0.003005 2.61 4247.18 6755.18 0.32 Fort Lupton Gray 0 PF 9 10000.00 4838.00 4843.46 4842.46 4843.55 0.003004 2.72 5194.74 6768.14 0.33 Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 Section EE - South Property Line .0460* .046 Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 0 n a) w 4890- .045 0 5 .045 4810 Legend EG PF 2 EGPF1 WSPF2 WS PF 1 EGPF9 EG PF 8 EG PF 7 WSPF9 4 ..... Crit PF 9 WSPF8 Crit PF 8 WS PF 7 x Crit PF 7 EGPF6 WS PF 6 Crit PF 6 • EGPF5 Crit PF 5 WSPF5 x EGPF4 WSPF4 Crit PF 4 EGPF3 WSPF3 Crit PF 3 Ground • Ineff • Bank Sta 0 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 4890- .045 5 .045 4810 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 a EG PF 7 WS PF 7 ♦ EG PF 6 WS PF 6 f EG PF 5 WS PF 5 EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground A Ineff • Bank Sta 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 4890 4880\\\ - 4870 4860- 4850- > m w 4840-, 4830- 4820- 4810 .045 0 5 .045 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EGPF8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 f EG PF 5 WS PF 5 EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground • Ineff Bank Sta 0 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 4890- 4870- 4860- 4850- > w 4840- 4830- 4820- .045 5 .045 4810 0 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EGPF8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 a EG PF 5 WS PF 5 EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground • Ineff • Bank Sta 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 .045 4880- 4870- 4860- .7, 4850- m w 4840- 4830- 0 5 .045 Legend a. EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 f EG PF 5 WS PF 5 x EGPF4 WS PF 4 EGPF3 WS PF 3 Ground • Ineff • Bank Sta 4820 0 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 4875- .045 0 5 .045 4840 0 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 EG PF 7 WS PF 7 • EG PF 6 WS PF 6 i EG PF 5 WS PF 5 x EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground • Bank Sta 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 c 0 as a) w .045 4875- .0 .045 4840 0 2000 4000 6000 Station (ft) 8000 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 EG PF 5 WS PF 5 x EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground • Bank Sta 10000 12000 Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 F 0 0 w 4865- 4860- 4855- 4850- 4845- .045 .05 .045 Legend 4 EG PF 2 WS PF 2 EG PF 1 WS PF 1 • EG PF 9 WS PF 9 EG PF 8 WS PF 8 a EG PF 7 WS PF 7 EG PF 6 WS PF 6 a EG PF 5 WS PF 5 x EG PF 4 WS PF 4 EG PF 3 • WS PF 3 Ground s Bank Sta Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 F c 0 m w 4835 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 a EG PF 9 WS PF 9 EGPF 8 WS PF 8 EG PF 7 WS PF 7 • EG PF 6 WS PF 6 a EG PF 5 WS PF 5 EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground • Bank Sta 0 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 0 as w L 4860- 4855- 4850- 4845- 4840- 4835 .045 .05 .045 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 s EG PF 5 WS PF 5 EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground • Bank Sta 0 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 c 0 co m w L _ 4860- 4855- 4850- 4845- 4840- 4835 .045 .05 .045 k 0 Legend EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 EG PF 5 WS PF 5 EG PF 4 WS PF 4 EG PF 3 WS PF 3 Ground • Bank Sta 2000 4000 6000 8000 10000 12000 Station (ft) Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 c 0 as a) w 4860- 4855- 4850- 4845- 4840- 4835 .045 .05 .045 2000 4000 6000 Station (ft) 8000 Legend . EG PF 2 WS PF 2 EG PF 1 WS PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 a EG PF 5 WS PF 5 x EG PF 4 WS PF 4 • EG PF 3 WS PF 3 Ground • Bank Sta 10000 12000 Bestway-Global Assets - SPR Proposed Plan: Plan 06 10/31/2016 Section AA - 2712' d.s. of north property .045 x .05 )< .045 C 0 co m uJ 4860 4855 4850 4845 4840 4835 t 0 2000 4000 6000 8000 Station (ft) 10000 Legend • EG PF 2 EG PF 1 WS PF 2 WS PF 1 Crit PF 2 Crit PF 1 EG PF 9 WS PF 9 EG PF 8 WS PF 8 EG PF 7 WS PF 7 EG PF 6 WS PF 6 ,__ . . Crit PF 9 Crit PF 8 Crit PF 7 a EG PF 5 WS PF 5 • Crit PF 6 EG PF 4 WS PF 4 • Crit PF 5 Crit PF 4 EG PF 3 WS PF 3 • Crit PF 3 Ground • Bank Sta 12000 Hello