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Home My WebLink About20122138.tiff BLUE EARTH LETTER OF TRANSMITTAL DATE: August 10,2012 TO: Weld County Clerk to the Board 1150 0 Street Greeley, Colorado 80632 FROM: Bill Schenderlein Blue Earth P.O. Box 973 Fort Collins, Colorado 80522 (970) 227-2803 WE TRANSMIT: THE- FOLLOWING: FOR YOUR: 11 Attached 1 I Originals U Use rlInformation Below ■ Copy of Letter ❑ Approval nApplications El Information nSpecifications ❑ Review &Comment n Other Remarks: Submission of this material satisfies requirements of the Mine Land Reclamation Board Regular 112 Operation Reclamation Permit Application. The enclosed application material must remain for public review at least sixty (60) days after a decision on said application has been made the Office of Mined Land Reclamation (Rule 1.6.2 (2)). Confidential materials were purposely excluded. • One (1) copy of DRMS Construction Materials Regular 112 Operation Reclamation Permit Amendment Application—Responses to DRMS Adequacy Review Comments 25th Avenue Site—City of Greeley. V= Signed: oc-' _! 7 (TI o inn{� < U zz g i5 � a s-- 13-ia d N_` 2012-2138 BLUE EARTH August 10, 2012 Colorado Department of Natural Resources Division of Reclamation, Mining and Safety Attn: Mr. Peter Hays 1313 Sherman Street; Room 215 Denver CO, 80203 RE: Response to Adequacy Review Comments for City of Greeley 25`h Avenue Site, Permit No. M-2002-020 Dear Mr. Hays: The following discussion and attachments are submitted on behalf of our client, City of Greeley, in response to the Adequacy Review comments prepared by the Division of Reclamation, Mining and Safety dated July 2, 2012 for the 25`h Avenue Site 112 Construction Materials Reclamation Permit Amendment application. The information and discussion below addresses each comment as it was presented by the Division: 1. Proof of publication in newspaper is attached. 2. Proof of notice to all owners of record of surface and mineral rights of affected land and surface owners and easement holders within 200 feet of the affected land is attached. 3. The Army Corps of Engineers comments have been reviewed and it is anticipated that no jurisdictional wetlands will be affected by the mining operation as described in the amendment application. The Corps will be contacted for clarification. 6.4.3 Exhibit C—Pre-Mining and Mining Plan Maps of Affected Land 4. Mining offsets are called out on the revised Exhibit C-5 attached. 5. All creeks, roads, oil and gas wells and lines, power and communication lines, and easement owners are included on the revised Exhibit C-1 and Exhibit C-5 attached. 6. Owner's names, types of structures, and location of structures within 200 feet of the affected land are included on revised Exhibit C-1 attached. 7. Gutierrez, Jose A. has been changed to Gutierrez, Joe Anthony on the revised Exhibit C-1 attached. 8. Easements and right-of-ways for the Natural Gas Association and Xcel Energy are included on the revised Exhibit C-1 attached. Mr. Peter Hays RE: City of Greeley M-2002-020 August 10, 2012 9. The Lafarge Parcel No. 80536100015 is associated with an expired local permit and not associated with a real property, easement, or right-of-way. 10. The list of property owners and parcel numbers on revised Exhibit C-1 attached has been updated to include Double SM Farms (Parcel No. 80536000027). The Double SM Farms property owner is the same as property owner Flatiron Companies. 6.4.4 Exhibit D — Mining Plan 11. All creeks, roads, oil and gas wells and lines, power and communication lines, and easement owners are included on the revised Exhibit C-1 and Exhibit C-5 attached. 12. A minimum width of 50 feet is needed between any constraining feature (i.e. permit boundary) and the final reservoir top of bank to allow room for installation of the slurry wall. The railroad tracks to the south of the proposed mining cell and 35th Avenue to the west create space constraints between the permit boundary and the existing lake(s) top of bank. Therefore, around the south and west sides of the proposed mining cell, crest width may need to be added for installation of the slurry wall. Crest width will be added by placing stable fill material on the existing lake(s) side slopes until the mining cell top of bank is extended far enough to provide a minimum crest width of 50 feet. The fill material will be placed from the top of bank to the existing lake(s) bottom (estimated to be approximately 20 feet), maintaining a 3H:IV slope. This will not only extend the top of bank further into the mine cell, but will also extend the toe of the slope. Based on the new crest width and associated toe of slope location, mining will proceed at 3H:1 V from the new toe of slope to bedrock. This process is depicted in the cross-section on the revised Exhibit C-5 attached. 13. Typical dewatering trenches and settling basin/discharge locations have been identified on the revised Exhibit C-5 attached. Depending upon the size of the mining cell, groundwater inflow, and area of disturbance, the settling basin(s) will be sized to provide enough detention so that the discharge will not exceed Colorado Discharge Permitting System standards. 14. If topsoil or overburden stockpiles are inactive for 180 days or more, they will be seeded with a fast growing grass seed mixture. 15. The applicant has committed to mining at 3H:IV slopes and acknowledges that mining at slopes steeper than 3H:1 V will be considered a serious violation of the permit. 16. If mining excavation occurs within 50 feet of the permit boundary or a man-made structure, an agreement will be obtained from the property owner or a stability analysis will be performed. The proposed offset distances are shown on the revised Exhibit C-5 attached. Page 2 of 5 Mr. Peter Hays RE: City of Greeley M-2002-020 August 10, 2012 17. The SE Pond will be dewatered to allow for construction of two berms that will separate the pond area designated for backfilling. This process is shown on the revised Exhibit C-5 attached. The dewatering will only occur to dry the pond bottom sufficiently for equipment access (assumed to be approximately 20 feet). The berms will be created by placing fill material excavated from the mining cell. On the water side of the berm, 3H:1V slopes will be created. Following creation of the berms, dewatering will cease and backfilling will begin. When sufficient backfill material is temporarily stockpiled on the north bank of the pond, the material will be pushed into the pond (north and west of the berms) using dozers or other appropriate equipment. The backfilling will continue until the backfill material reaches the berms and open water is minimized or eliminated. 6.4.5 Exhibit E—Reclamation Plan 18. It is anticipated that the site will be released from the MLRB permit prior to significant trail or other public facility creation. However, if the site is still covered by the permit at the time of these improvements, a technical revision will be submitted prior to the changes being made. 19. It is anticipated that the site will be released from the MLRB permit prior to installation of the inlet and outlet works. However, if the site is still covered by the permit at the time of these improvements, a technical revision will be submitted prior to the changes being made. 20. The site will be included in the City of Greeley Noxious Weed Program. 21. During reclamation, freshly seeded areas will be covered with 4,000 pounds of certified weed-less mulch per acre. 22. The backfilling process for the NE and SE ponds is described in#17 above. Structures or other facilities are not proposed for the backfilled areas, therefore, no compaction specifications are proposed. 6.4.7 Exhibit G —Water Information 23. The last two sentences of the first paragraph of Exhibit G, Water Information, should read: "The proposed amendment area includes 197.51 acres. Including the 89.16 acres in the existing 25th Avenue Site, the total proposed permit area is 286.67 acres." 24. Quarterly depth to groundwater data collected from wells identified on revised Exhibit C-5 will be submitted as part of the Division annual reports. Page 3 of 5 Mr. Peter Hays RE: City of Greeley M-2002-020 August 10, 2012 6.4.13 Exhibit M— Other Permits and Licenses 25. Copies of approved permits and licenses required for the 25a' Avenue Site operation will be provided to the Division upon request. 6.4.14 Exhibit N — Source of Legal Right to Enter 26. The current name is "Cottonwood Land and Farms, LLC". The name was officially changed, but the Weld County Assessor's Office still has the name "Cottonwood Land and Farms, LTD". Therefore, the name on revised Exhibit C-1, Site Layout, Man-Made Structures, and Surface Owners of Record, has been changed to "Cottonwood Land and Farms, LLC" for consistency with the application text. The revised Exhibit C-1 is attached. 6.4.18 Exhibit R—Proof of Filing with County Clerk and Recorder 27. The date stamped "proof of delivery" transmittal letter for these adequacy review comment responses to the Weld County Clerk to the Board is attached. 6.4.19 Exhibit S —Permanent Man-Made Structures 28. With the mining cell top of bank setback a minimum of 50 feet from the permit boundary, and a created 3H:1V slope to an approximate lake depth of 20 feet, the setback from the permit boundary for new excavation will be at least 110 feet from the permit boundary. For the M-2002-020 permit application submitted in 2002, slope stability analyses were performed by Applegate Group, inc. for continued mining and slurry wall installation at the existing 25`h Avenue Site Reservoir. A copy of the slope stability analysis is attached. The lake used to create the existing reservoir and the SW Ponds in the amendment area were mined and partially reclaimed similarly. Mining assumptions and geotechnical conditions at the site have not changed during the last 10 years and, therefore, it is believed that results of the original slope stability analysis are applicable to this amendment. Recommendations from the slope stability analysis include safe mining setbacks of approximately 120 feet from the slurry wall and other man-made structures if mining progresses at a near vertical slope. However, the analysis does not recommend additional setbacks or identify concerns if the mining progresses at a 3H:1V slope from the toe of the existing lake(s) slope. It is believed that the existing lake(s) side slopes are about 3H:1V. If the side slopes are not 3H:1V or flatter, they will be flattened to 3H:1V prior to continued excavation at 3H:1V slopes. Even with continued mining at near vertical slopes, the 2002 slope stability analysis found that setbacks near those proposed in this amendment provided protection for the slurry wall and other man-made structures. For creation of the amendment area reservoir, mining will progress at 3H:1V slopes (see commitment in #15 above). Based on the existing slope stability analysis and other available information, we Page 4 of 5 Mr. Peter Hays RE: City of Greeley M-2002-020 August 10, 2012 do not believe the continued excavation, as described in this amendment, will adversely affect the stability of any significant, valuable and permanent man-made structure not owned by the applicant. Regardless of the negligible stability concerns for adjacent man-made structures due to the proposed setbacks and mining at 31-I:1V slopes, structure agreements have been offered to owners of roads and railroads, gas lines, and power and communication lines within 200 feet of the proposed mining cell. Proof of structure agreements being provided to utility owners is attached. If additional mining excavation is planned, different from or in additional locations to the mining excavation proposed in this amendment, a technical revision will be submitted to the Division and further analysis of man-made structures within 200 feet of the additional excavation will be performed, including offering structure agreements and performing slope stability analyses. If you have any questions regarding this application and adequacy comment responses, please call me directly at(970) 227-2803. Sincerely, Blue Earth William Schenderlein, P.E. Project Engineer Enclosures Page 5 of 5 Proof of Publication Affidavit of Publication STATE OF COLORADO ss. County of Weld, I Jennifer Usher of said County of Weld, being duly sworn, say that I am an advertising clerk of THE GREELEY TRIBUNE, that the same is a daily newspaper of general circulation and printed and published in the City of Greeley, in said county and state; that the notice or advertisement,of which the annexed is a true copy, has been published in said daily newspaper for consecutive(days):that the notice was published in the regular and entire issue of every number of said PUBLIC NOTICE newspaper during the period and time of City of Greeley,11oob e,s,.et,Sub300.o,aaycolorado publication of said notice, and in the newspaper 10621'(970)3601114 hoe MW an eppkaWn fore Regular proper and not in a supplement thereof; that the 772)CM4lnktlan Materials Operation Reclamation hermit with the Colorado Mined lNq Recteniatirm Board first publication of said notice was contained in the under MT4bn or the Cobra4o Land Reclamation Act f lbeor tat '...ate as the aadrection of construction le rea`agaNa'Mdandarrpi�dM Thirtieth day of April A.D. cc neer Section Se,Township 0 North,Range 08 Wes of the 6N 2012 and the last publication thereof:in the issue of hams Meridian.Weld The Itoper.dal Is approsimmely one mei noon of at said newspaper bearing the date of the Twenty-first day of mu The proposed data of oomnwteamwd for operations Included In tiw amale2012 and the dateofoomplasons A.D. 2012 that said The Greeley Tribune has been 2o24°an�pmppeedaAa'aaacr .i°rdM lav°op°d"'t' published continuously and uninterruptedly during Ad fromWMomwnofA laataIon tlecwa+and mar P Y eate°o an°ennenm the°"wa 215. enver,Colo,ya80203. theperiod of at least six months next prior to the �ataeheman seed.Roan eta Denver,Colorado 80203. 861.3667 or me Weld Clerk lathe Bone oat, /1aied o$Street,etned bury Colorado, (87%495-7660 or the first issue thereof contained said notice or advertisement above referred to; that said Comments must be In wrIng and mutt be receivedbytheblw newspaper has been admitted to the United States awn ateedmnation.MeanstndSaltyby4:00p.m.onJus n.zolz. mails as second-class matter under the provisions hle.oa note that maim me proNslo s of C.R.B.34425401 et of the Act of March 3,1879, or any amendments seq. vlsu Commenasr�to robe,truck trait hours of operation. a00al anima oun dame an IasiesoWees and othe to thla r or a_ thereof; and that said newspaper is a daily maws. Torhae r nl.ae,aro e6 not moms•met er newspaper duly qualified for publishing legal bon nxnM,andSa feneyor atansslerpReeatpaamt notices and advertisements within the meaning of eon Bon the laws of the State of Colorado. ma Mbar. Apnt 80,May 7,14,21,2012 April30,May 7, 14,21,2012 Total Charges: $210.56 'I/'k 2 st day of May 2012 My Commission Expires 6/14/2013 4311 Notary Public Proof of Notice to Surface Owners and Easement Holders within 200 - Feet of Affected Land Iis c 1 . 0 1 2 °° o• ❑ A ° r > o A 00 ° U y jifi co h o ci n < co a �, \ o inin 11 rai icitiv � x � :saxm c,.. O Z.41li „ ib I Fli if il rcli 1 ... , I-3 4 J in i a❑ 1 CD rq c7 P IlA _ N u, 4.0 1 t 4 �J ,„ iifljf �, SD cp (ion i I ijq 8i I-o st il• S, lV 'C*5l 1: § t 1 i ;i- 218 i2 8 i 'leg S- i l! ° N 1 - if b E W 6 p E s. o g m 4 n�.' o = u a y .ti 4. �, N U.J0 d — v ,�,I ,7, , q4 J ' O �r Y► M M N F' �f C p U241": , � • L,LL I I � 2Z w a �' o 2 1 �, C. 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S _._]..t.��, aS'o 1 0 fa4O2 ID (air Co 6o.3D2 lSF iltlnn.n. l,..l Jnn9 -tervauulul ,.i:,a� pif:ky ■ ■ ■ p t> v\ TI. i 1 I r t, 4. t.. i : illy 71 it . �— R ► Iii • +.‘'Nc. .n I ro W kiiittt: 1 n a h1154 P, t� �` rte, n 3'i. 1L1 •.g g I ,. cln 3' F III k-1 v1 10 a p ' t° O 41 T a a P p m K > n N fifif 0 1 , in 4 ru Ei I4. (tJ n_ O pp n; f1J 0. ❑❑ ❑ o flhf r. V t 4. I t v ...c".7• Iii y _�•4. O 'n ❑ € � i ❑❑ ❑ OO41 ❑❑ I ' r I Revised Exhibit C- 1 Site Layout, Man - Made Structures, and Surface Owners of Record Revised Exhibit C- 5 Pre- Mining/ Mining Plan Map Proof of Adequacy Review Response Delivery to Weld County Clerk to the Board Slope Stability Analysis for M - 2002 - 020 rii,"Applegate Group, Consultants for Land,Minerals and Water Memorandum Date: 02-14-02 File No. 01-101 To: City of Greeley From: Craig Ullman Subject: Slope Stability for 25th Avenue Site As requested by the City of Greeley we have performed a slope stability analysis for the 2S"Ave. gravel pits. The purpose of this analysis was to determine a stable slope configuration for additional mining proposed at the site and to determine a proper location for the proposed slurry wall.Two cross sections were selected for the analysis.The first cross section was located along the western boundary of the West Pond and the second section was along the north edge of the east pond. The first cross section poses several problems. The 35th Ave stormwater ditch is in close proximity to the existing pond.The top width of the berm separating the stormwater ditch from the pond is currently 15 ft.A buried gas line is located within this berm. A 40ft wide working platform is proposed for the construction of the shiny wall.Assuming a side slope of 3:1 the platform slope will tie into the existing surface somewhere near the existing toe of slope. Soils in this area consist primarily of approximately 5.5 ft of silts lying atop 50 ft of coarse alluvium. The second cross section was along the border of the Cache La Poudre River.Existing pit slopes appear to vary from 2H:I V to 411:1 V. The stability analysis assumed all pit slopes would be brought to 311:1 V.Topographic data was not available for the water surface or exact location of the river with respect to the ponds. Therefore,the water surface elevation in the river was assumed to be 5 feet below the working platform for the slurry wall and the edge of water was assumed to be 10 ft from the outer edge of the working platform.Borelogs in this vicinity indicate that there is a thin layer(2.5 ft)of coarse alluvium lying atop of approximately 5 feet of fine alluvium or silt.The remaining depth to bedrock consists of coarse alluvium. From this point additional mining could be performed in one of two ways.If mining progresses in such a manner as to expose a high wall of alluvium then the limits of mining will need to be offset a sufficientdistance from the existing toe of slope.The stability analysis was used to determine an acceptable distance for this setback.After completion of mining the side slopes would need to be reclaimed at a specified slope. The construction condition for this scenario was analyzed due to the presence of the high wall.Mining could also be performed by beginning at the existing toe and mining down to bedrock at a specified slope. Both scenarios were analyzed for stability during a rapid drawdown condition.This scenario assumes that the pore water pressure in the embankment remains unchanged as the reservoir is drained. The minimum allowable factor of safety for all scenarios is 1.20. Several assumptions were made in the stability analysis. It was assumed that the depth of remaining alluvium was 30 feet. Weathered bedrock was assumed to extend 5.5 ft below the bedrock surface.All pit slopes were assumed to be constructed at a slope of 311:1 V.Groundwater levels were set at 10 ft below existing ground surface. Soil parameters were unavailable for the site and therefore,were determined based on conservative values for similar materials.Of special note, the materials used to reclaim the slopes of the original pit were placed without controlled compaction and therefore the state of these materials is questionable. Very conservative assumptions were made concerning the soil 1499 West 120th Avenue,Suite 200 • Denver,Colorado 80234-2728 • (303)452-6611 • Fax:(303)452-2759 5441 Boeing Drive,Suite 200 • Loveland,Colorado 80538-8855• (970)461-9884 • Fax:(970)613-1177 parameters for these materials.However,the properties of these soils are suspect and may wan-ant additional investigation. Soil parameters used in the analysis are shown in the attached table. After performing several scenarios at each cross section we have a few recommendations.If the pit is mined in a way that produces a vertical high wall the limits of mining should be offset 30 feet from the existing toe of slope(assuming the existing slope is 3H:1 V or less). Offsets less than this result in a factor of safety less than 1.20. The slurry wall should be located a distance of 20 ft from the edge of the working platform and the final inside edge of the crest.This configuration results in factors of safety greater than 1.2. If additional mining is performed at a 3H:IV slope or less the mining could continue at a 314:1V slope beginning at the existing toe.At no time during the mining should the slope exceed 311:1 V or should a high wall exist. If additional mining progresses in such a manner the slurry wall p should be located 20 ft from the edge of the working platform and the fmal inside edge of the crest. The results of this analysis are summarized in the attached table.Figures showing the recommended cross sections are attached as well.If at any point any of the assumptions made for this analysis are violated or found to be incorrect the results contained herein are void. 1499 West 120th Avenue,Suite 200 • Denver,Colorado 80234-2728 • (303)452-6611 • Fax:(303)452-2759 5441 Boeing Drive,Suite 200 • Loveland,Colorado 80538-8855• (970)461-9884 • Fax:(970)613-1177 XSTABL File: RIVERC30 2-28-** 11:55 *****+************************************ * XSTABL * * * * Slope Stability Analysis * * using the * * Method of Slices * * * * Copyright (C) 1992 A 96 * * Interactive Software Designs, Inc. * * Moscow, ID 83843, U.S.A. * * * * All Rights Reserved * * * * Ver. 5. 105a 95 A 1483 * ****************************************** Problem Description : Poudre River Const w/30ft offset SEGMENT BOUNDARY COORDINATES 8 SURFACE boundary segments Segment x-left y-left x-right y-right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 50.0 100.0 207,0 100.0 5 2 207.0 100.0 210.0 130.0 3 3 210.0 130.0 240.0 130.0 3 4 240.0 .130.0 316.5 155.5 2 5 316.5 155.5 356.5 155.5 3 6 356.5 155.5 361.5 153.0 3 7 361.5 153.0 366.5 150.5 1 8 366.5 150.5 - 386.5 150.5 1 8 SUBSURFACE boundary segments Segment x-left y-left x-right y-right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 315.5 147.5 316.3 153.0 1 2 316.3 153.0 316.5 155.5 3 3 316.3 153.0 361.5 153.0 1 4 240.0 130.0 314.0 130.0 3 5 314.0 130.0 315.5 . 147.5 3 6 315.5 147.5 386.5 147.5 3 7 207.0 100.0 386.5 100.0 5 8 50.0 94 .5 386.5 94.5 6 ISOTROPIC Soil Parameters 6 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. 1 110.0 120.0 .0 25.00 .000 .0 0 2 91. 1 95.0 .0 20.00 .000 .0 0 3 125.0 138.0 .0 32.00 .000 .0 0 4 110.0 130.0 50.0 20.00 .000 .0 0 5 130.0 145.0 .0 11.00 .000 .0 0 6 130.0 145.0 500.0 30.00 .000 .0 0 1 Water surface(s) have been specified Unit weight of water = 62.40 (pcf) Water Surface No. 1 specified by 2 coordinate points ********************************** PHREATIC SURFACE, ********************************** Point x-water y-water No. (ft) (ft) 1 336. 60 150.50 2 386.50 150.50 -- WARNING Water surface number 1 has been defined but is not used by any soil unit. The analysis will IGNORE water surface # 1. Please make sure that this assumption is consistent with your subsurface model. A critical failure surface searching method, using a random technique for generating CIRCULAR surfaces has been specified. 2500 trial surfaces will be generated and analyzed. 50 Surfaces initiate from each of 50 points equally spaced along the ground surface between x = 175.0 ft and x = 220.0 ft Each surface terminates between x = 332.5 ft and x — 342.5 ft Unless further limitations were imposed, the minimum elevation at which a surface extends is y = .0 ft * * * * * DEFAULT SEGMENT LENGTH SELECTED BY XSTABL * * * * * 6.0 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 :_ -5.0 degrees Factors of safety have been calculated by the : * * * * * SIMPLIFIED JANBU METHOD * * * * * The 10 most critical of all the failure surfaces examined are displayed below - the most critical first Failure surface No. 1 specified by 29 coordinate points Point x-surf y-surf No. (ft) (ft) 1 189.69 100.00 2 195.47 98.39 3 201.33 97.07 4 207.23 96.02 5 213.19 95.27 6 219.17 94.80 7 225.17 94 .63 8 231.17 94.74 9 237. 15 95.14 10 243.11 95.84 11 249.03 96.82 12 254.90 98.08 13 260.69 99. 63 14 266.41 101.46 15 272.03 103.56 16 277.54 105.93 17 282.93 108.56 18 288. 19 111.46 19 293.30 114. 60 20 298.25 117.98 21 303.04 121.61 22 307.64 125.46 23 312.05 129.52 24 316.26 133.80 25 320.26 138.27 26 324.03 142.93 27 327.58 147.77 28 330.89 152.78 29 332.50 155.50 ** Corrected JANBU FOS = 1.296 ** (Fo factor = 1.041) Failure surface No. 2 specified by 32 coordinate points Point x-surf y-surf No. (ft) (ft) 1 175.00 100.00 2 180.82 98.53 3 186. 69 97.29 4 192.60 96.29 5 198.56 95.53 6 204.53 95.01 7 210.53 94.72 8 216.53 94 . 67 9 222.52 94 .87 10 228. 51 95.30 11 234 . 47 95.97 12 240.40 96.88 13 246.29 98.03 14 252. 13 99.41 15 257.91 101.02 16 263.62 102.86 17 269.25 104. 93 18 274.80 107.22 19 280.25 109.73 20 285.59 112.46 21 290.82 115.40 22 295.93 118.54 23 300.91 121.89 24 305.75 125.43 25 310.45 129.16 26 315.00 133.08 27 319.38 137.18 28 323.60 141.45 29 327. 64 145.88 30 331.50 150.47 31 335.18 155.21 32 335.38 155.50 ** Corrected JANBU FOS = 1.308 ** (Fo factor = 1.038) Failure surface No. 3 specified by 29 coordinate points Point x-surf y-surf No. (ft) (ft) 1 192.45 100.00 2 198.24 98.42 3 204.09 97.12 4 210.01 96.11 5 215. 97 95.39 6 221.95 94.97 7 227.95 94.83 8 233.95 94.99 9 239.93 95.44 10 245.88 96.19 11 251.79 97.22 12 257.65 98.55 13 263.43 100.15 14 269.12 102.04 15 274.72 104.20 16 280.20 106.64 17 285.56 109.34 18 290.78 112.29 19 295.85 115.50 20 300.76 118.96 21 305.49 122.65 22 310.03 126.56 23 314.38 130.70 24 318.52 135.04 25 322.45 139.58 26 326.15 144 .30 27 329.61 149.20 28 332.83 154.27 29 333.53 155.50 ** Corrected JANBU FOS = 1.322 ** (Po factor = 1.041) Failure surface No. 4 specified by 28 coordinate points Point x-surf y-surf No. (ft) (ft) 1 194.29 100.00 2 200.07 98.42 3 205.93 97.13 4 211.85 96.14 5 217.81 95.44 6 223.80 95.05 7 229.80 94.95 8 235.79 95.16 9 241.77 95. 67 10 247.72 96.48 11 253. 61 97.59 12 259.45 98. 99 13 265.20 100.68 14 270.87 102.66 15 276.43 104.92 16 281.86 107.46 17 287.17 110.26 18 292.32 113.33 19 297.32 116.66 20 302.14 120.23 21 306.77 124.04 22 311.21 128.08 23 315.44 132.33 24 319.45 136.79 25 323.23 141.45 26 326.78 146.29 27 330.07 151.31 28 332.53 155.50 ** Corrected JANBU FOS = 1.326 ** (Fo factor = 1.041) Failure surface No. 5 specified by 31 coordinate points Point x-surf y-surf No. (ft) (ft) 1 181.43 100.00 2 187.24 98.49 3 193.10 97.22 4 199.01 96.20 5 204 . 96 95.42 6 210.94 94 .89 7 216.93 94 .61 8 222.93 94.58 9 228.93 94.80 10 234.91 95.27 11 240.87 95.98 12 246.79 96. 95 13 252. 67 98.15 14 258.49 99. 61 15 264.24 101.30 16 269.93 103.23 17 275.52 105.39 18 281.02 107.78 19 286.42 110.40 20 291.71 113.25 21 296.87 116.31 22 301.90 119.58 23 306.79 123.06 24 311.53 126.73 25 316.11 130.60 26 320.53 134. 66 27 324 .78 138.90 28 328.84 143.31 29 332.72 147.89 30 336.41 152.62 31 338.46 155.50 ** Corrected JANBU FOS = 1.328 ** (Fo factor = 1.038) Failure surface No. 6 specified by 30 coordinate points Point x-surf y-surf No. (ft) (ft) 1 186.94 100.00 2 192.73 98.44 3 198.59 97.14 4 204.50 96.09 5 210.45 95.31 6 216.42 94.78 7 222.42 94.52 8 228.42 94.51 9 234 .41 94.77 10 240.39 95.29 11 246.34 96.07 12 252.25 97.11 13 258.11 98.40 14 263.90 99. 95 15 269. 63 101.75 16 275.27 103.80 17 280.81 106.09 18 286.25 108.62 19 291.57 111.39 20 296.77 114.39 21 301.83 117.61 22 306.75 121.05 23 311.51 124.70 24 316.11 128.55 25 320.54 132.60 26 324 .78 136.84 27 328.84 141.26 28 332.70 145.86 29 336.36 150.61 30 339.78 155.50 ** Corrected JANBU FOS = 1.334 ** (Fo factor = 1.039) Failure surface No. 7 specified by 30 coordinate points Point x-surf y-surf No. (ft) (ft) 1 188.78 100.00 2 194.57 96.43 3 200.42 97.13 4 206.33 96.08 5 212.28 95.30 6 218.26 94.79 7 224.25 94.54 8 230.25 94.56 9 236.25 94.85 10 242.22 95.40 11 248.17 96.22 12 254.07 97.30 13 259.91 98.64 14 265.70 100.25 15 271.40 102.11 16 277.02 104 .22 17 282.53 106.57 18 287. 94 109.18 19 293.23 112.02 20 298.38 115.09 21 303.39 118.39 22 308.25 121.91 23 312.95 125.64 24 317.48 129.58 25 321.83 133.71 26 325.99 138.03 27 329. 95 142.54 28 333.71 147.22 29 337.25 152.06 30 339.55 155.50 ** Corrected JANBU FOS = 1.337 ** (Fo factor = 1.039) Failure surface No. 8 specified by 30 coordinate points Point x-surf y-surf No. (ft) (ft) 1 180.51 100.00 2 186.36 98.67 3 192.26 97.59 4 198.20 96.74 5 204.17 96.14 6 210. 16 95.78 7 216.16 95.66 8 222.16 95.79 9 228.15 96.17 10 234.12 96.79 11 240.05 97.65 12 245.95 98.75 13 251.80 100.09 14 257.59 101.67 15 263.31 103.48 16 268.95 105.53 17 274.50 107.80 18 279. 96 110.30 19 285.32 213.02 20 290.54 115.95 21 295.65 119.09 22 300.63 122.44 23 305.46 125.99 24 310. 15 129.74 25 314.69 133.67 26 319.05 137.78 27 323.25 142.07 28 327.27 146.53 29 331.10 151.14 30 334 .43 155.50 ** Corrected JANBU FOS = 1.346 ** (Fo factor = 1.037) Failure surface No. 9 specified by 31 coordinate points Point x-surf y-surf No. (ft) (ft) 1 183.27 100.00 2 189.09 98.55 3 194 .96 97.34 4 200.89 96.38 5 206.84 95.66 6 212.83 95.20 7 218.62 94.98 8 224.82 95.02 9 230.82 95.30 10 236.79 95.83 11 242.74 96.62 12 248.65 97.65 13 254.51 98.92 14 260.32 100.44 15 266.06 102.20 16 271.71 104.19 17 277.28 106.42 18 282.76 108.88 19 288.12 111.57 20 293.37 114.47 21 298.49 117.60 22 303.48 120.93 23 308.33 124.47 24 313.02 128.21 25 317.56 132.14 26 321.92 136.25 27 326.11 140.55 28 330.12 145.01 29 333.94 149.64 30 337.56 154.42 31 338.31 155.50 ** Corrected JANBU FOS = 1.347 ** (Fo factor = 1.038) Failure surface No.10 specified by 28 coordinate points Point x-surf y-surf No. (ft) (ft) 1 196.12 100.00 2 201.93 98.46 3 207.80 97.26 4 213.73 96.33 5 219.70 95.70 6 225.69 95.38 7 231.69 95.35 8 237.68 95.63 9 243.65 96.20 10 249.59 97.08 11 255.47 98.25 12 261.29 99.72 13 267.03 101.48 14 272. 67 103.52 15 278.20 105.84 16 283.61 108.44 17 288.88 111.31 18 294.00 114.44 19 298.96 117.82 20 303.74 121.44 21 308.33 125.31 22 312.72 129.39 23 316. 90 133.70 24 320.86 138.21 25 324.59 142.91 26 328.08 147.79 27 331.31 152.84 28 332.84 155.50 ** Corrected JANBU FOS = 1.349 ** (Fo factor = 1.041) The following is a summary of the TEN most critical surfaces Problem Description : Poudre River Const w/30ft offset Modified Correction Initial Terminal Available JANBU FOS Factor x-coord x-coord Strength (ft) (ft) (lb) 1. 1.296 1.041 189.69 332.50 1.692E+05 2. 1.308 1.038 175.00 335.38 1.741E+05 3. 1.322 1.041 192.45 333.53 1.726E+05 4. 1.326 1.041 194.29 332.53 1.705E+05 5. 1.328 1.038 181.43 338.46 1.831E+05 6. 1.334 1.039 186.94 339.78 1.863E+05 7. 1.337 1.039 188.78 339.55 1.861E+05 8. 1.346 1.037 180.51 334.43 1.723E+05 9. 1.347 1.038 183.27 338.31 1.831E+05 10. 1.349 1.041 196.12 332.84 1.718E+05 * * * END OF FILE * * * -- o 3 - m M (.D d) - II O Vi - O M 0 CO Z in - in � N CD fn 4-- p Z N (n X v M \ U X 3 a M C o — U U U c U L. p c _ O col N M M O to O M v N M rn W c0 (}aa}) SIXV-J, XSTABL File: 35TRC030 2-28-** 11:52 ****************************************** * XSTABL * * * * Slope Stability Analysis * * using the * * Method of Slices * * * * Copyright (C) 1992 A 96 * * Interactive Software Designs, Inc. * * Moscow, ID 83843, U.S.A. * * * * All Rights Reserved * * * * Ver. 5. 105a 95 A 1483 * ****************************************** Problem Description : 35th during cost w/30 ft offset SEGMENT BOUNDARY COORDINATES 7 SURFACE boundary segments Segment x-left y-left x-right y-right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 100.0 100.0 207.0 100.0 5 2 207.0 100.0 210.0 130.0 3 3 210.0 130.0 240.0 130.0 3 4 240.0 130.0 307. 8 152.6 2 5 307.8 152. 6 347.8 152.6 2 6 347.8 152. 6 354.6 156.0 2 7 354 . 6 156.0 362. 6 156.0 2 5 SUBSURFACE boundary segments Segment x-left y-left x-right y-right Soil Unit No. (ft) (ft) (ft) (ft) Below Segment 1 240.0 130.0 345.0 130.0 3 2 345.0 130.0 347.0 150. 6 3 3 347.0 150. 6 362.6 150. 6 3 4 207.0 100.0 362. 6 100.0 5 5 100.0 94.5 362.6 94 .5 6 ISOTROPIC Soil Parameters 6 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. 1 110.0 120.0 .0 25.00 .000 .0 0 2 91.1 95.0 .0 20.00 .000 .0 0 3 125.0 138.0 .0 32.00 .000 .0 0 4 110.0 130.0 50.0 20.00 .000 . 0 0 5 130.0 145.0 .0 11.00 .000 .0 0 6 130.0 145.0 500.0 30.00 .000 .0 0 1 Water surface(s) have been specified Unit weight of water = 62.40 (pcf) Water Surface No. 1 specified by 2 coordinate points ********************************** PNREATIC SURFACE, ********************************** Point x-water y-water No. (ft) (ft) 1 327.80 146.00 2 362. 60 146.00 -- WARNING Water surface number 1 has been defined but is not used by any soil unit. The analysis will IGNORE water surface # 1. Please make sure that this assumption is consistent with your subsurface model. A critical failure surface searching method, using a random technique for generating CIRCULAR surfaces has been specified. • 2500 trial surfaces will be generated and analyzed. 50 Surfaces initiate from each of 50 points equally spaced along the ground surface between x = 190.0 ft and x = 208.0 ft Each surface terminates between x = 322.5 ft and x = 332.5 ft Unless further limitations were imposed, the minimum elevation at which a surface extends is y = .0 ft * * * * * DEFAULT SEGMENT LENGTH SELECTED BY XSTABL * * * * * 6.0 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 := -5.0 degrees Factors of safety have been calculated by the : * * * * * SIMPLIFIED JANBU METHOD * * * * * The 10 most critical of all the failure surfaces examined are displayed below - the most critical first Failure surface No. 1 specified by 27 coordinate points Point x-surf y-surf No. (ft) (ft) 1 190.37 100.00 2 196. 14 98.38 3 202.00 97.06 4 207. 91 96.05 5 213.87 95.34 6 219.86 94.95 7 225.86 94. 86 8 231.85 95.09 9 237.83 95. 62 10 243.77 96.47 11 249. 66 97.62 12 255.48 99.07 13 261.22 100.83 14 266.86 102.88 15 272.38 105.21 16 277.78 107.83 17 283.03 110.73 18 288.13 113.90 19 293.06 117.32 20 297.80 121.00 21 302.34 124.92 22 306. 68 129.06 23 310.79 133.43 24 314.68 138.00 25 318.32 142.77 26 321.71 147.72 27 324. 69 152.60 ** Corrected JANBU FOS = 1.273 ** (Fo factor = 1.041) Failure surface No. 2 specified by 27 coordinate points Point x-surf y-surf No. (ft) (ft) 1 193.67 100.00 2 199.44 98.35 3 205.29 97.03 4 211.21 96.02 5 217.17 95.35 6 223. 16 95.00 7 229.16 94 .99 8 235.15 95.30 9 241.12 95.94 10 247.04 96.91 11 252. 90 98.21 12 258.68 99.82 13 264.36 101.75 14 269. 92 103.99 15 275.36 106.54 16 280. 64 109.37 17 285.77 112.50 18 290.71 115.90 19 295.46 119.57 20 300.00 123.50 21 304.31 127.66 22 308.39 132.06 23 312.22 136.68 24 315.79 141.50 25 319.09 146.51 26 322.11 151.70 27 322.58 152.60 ** Corrected JANBU FOS = 1.273 ** (Fo factor = 1.042) Failure surface No. 3 specified by 28 coordinate points Point x-surf y-surf No. (ft) (ft) 1 190.73 100.00 2 196.50 98.36 3 202.35 97.01 4 208.26 95.97 5 214.22 95.24 6 220.20 94.82 7 226.20 94.70 8 232.20 94.90 9 238.18 95.41 10 244.12 96.22 11 250.01 97.35 12 255.84 98.77 13 261.59 100.50 14 267.24 102.52 15 272.77 1D4.83 16 278.18 107.43 17 283.45 110.30 18 288.57 113.44 19 293.51 116.84 20 298.27 120.49 21 302.84 124.38 22 307.19 128.51 23 311.33 132.85 24 315.24 137.40 25 318.91 142.15 26 322.32 147.09 27 325.48 152.19 28 325.71 152.60 ** Corrected JANBU FOS = 1.276 ** (Fo factor = 1.041) Failure surface No. 4 specified by 27 coordinate points Point x-surf y-surf No. (ft) (ft) 1 191.10 100.00 2 196.88 98.39 3 202.74 97.08 4 208.65 96.07 5 214.61 95.38 6 220.60 94 .98 7 226.60 94.90 8 232.59 95.13 9 238.57 95.67 10 244.51 96.51 11 250.40 97.66 12 256.22 99. 12 13 261.96 100.87 14 267.60 102. 91 15 273.13 105.25 16 278.53 107.86 17 283.78 110.76 18 288.89 113.91 19 293.82 117.33 20 296.57 121.00 21 303. 12 124 .91 22 307.46 129.04 23 311.59 133.40 24 315.49 137.96 25 319,14 142.72 26 322.55 147.66 27 325.59 152.60 ** Corrected JANBU FOS = 1.284 ** (Fo factor = 1.041) Failure surface No. 5 specified by 26 coordinate points Point x-surf y-surf No. (ft) (ft) 1 197.35 100.00 2 203.10 98.29 3 208.94 96.90 4 214.84 95.86 5 220.80 95.15 6 226.79 94 .79 7 232.79 94.76 8 238.78 95.08 9 244.75 95.74 10 250.66 96.75 11 256.51 98.08 12 262.27 99.75 13 267.93 101.75 14 273.47 104.06 15 278.86 106.69 16 284.10 109.62 17 289.16 112.85 18 294.02 116.36 19 298.68 120.14 20 303.11 124.18 21 307.31 128.47 22 311.26 132. 99 23 314.94 137.73 24 318.34 142.67 25 321.45 147.80 26 324 .01 152.60 ** Corrected JANBU FOS = 1.297 ** (Fo factor = 1.043) Failure surface No. 6 specified by 28 coordinate points Point x-surf y-surf No. (ft) (ft) 1 191.47 100.00 2 197.24 98.35 3 203.08 96.99 4 208.99 95.93 5 214. 94 95.17 6 220.92 94 .71 7 226. 92 94.55 8 232.92 94.69 9 238.90 95.14 10 244.85 95.88 11 250.76 96.93 12 256.61 98.27 13 262.38 99.91 14 266.07 101.83 15 273.65 104.04 16 279.11 106.52 17 284.44 109.28 18 289. 62 112.30 19 294.64 115.58 20 299.50 119.11 21 304. 16 122.88 22 308. 64 126.88 23 312.90 131.10 24 316. 95 135.53 25 320.77 140.16 26 324.35 144.97 27 327.68 149.96 28 329.26 152.60 ** Corrected JANBU FOS = 1.301 ** (Fo factor = 1.041) Failure surface No. 7 specified by 27 coordinate points Point x-surf y-surf No. (ft) (ft) 1 190.00 100.00 2 195.82 98.53 3 201.70 97.35 4 207.63 96.46 5 213. 60 95.87 6 219.60 95.58 7 225.60 95.58 8 231.59 95.88 9 237.56 96.47 10 243.49 97.36 11 249.38 98.54 12 255.19 100.01 13 260.93 101.77 14 266.57 103.81 15 272.11 106.13 16 277.52 108.72 17 282.80 111.57 18 287. 93 114.68 19 292.90 118.04 20 297.70 121. 65 21 302.31 125.48 22 306.73 129.54 23 310.94 133.82 24 314 .93 138.29 25 318.70 142.96 26 322.24 147.81 27 325.37 152. 60 ** Corrected JANBU FOS 1 .304 ** (Fo factor = 1.040) Failure surface No. 8 specified by 28 coordinate points Point x-surf y-surf No. (ft) (ft) 1 190.00 100.00 2 195.80 98.47 3 201.67 97.22 4 207.59 96.27 5 213.56 95.60 6 219.55 95.24 7 225.55 95.16 8 231.54 95.39 9 237.52 95.90 10 243.46 96.72 11 249.36 97.82 12 255.20 99.21 13 260.96 100.89 14 266. 63 102.85 15 272.20 105.08 16 277.65 107.59 17 282.97 110.37 18 288. 15 113.40 19 293.17 116.68 20 298.02 120.21 21 302.70 123.97 22 307.18 127. 95 23 311.46 132.16 24 315.53 136.56 25 319.38 141.17 26 323.00 145. 95 27 326.38 150.91 28 327.41 152.60 ** Corrected JANBU FOS = 1.306 ** (FO factor = 1.040) Failure surface No. 9 specified by 26 coordinate points Point x-surf y-surf No. (ft) (ft) 1 196. 98 100.00 2 202.77 98.42 3 208.63 97.16 4 214.56 96.24 5 220.53 95. 65 6 226.53 95.40 7 232.53 95.49 8 238.51 95.91 9 244 .47 96.67 10 250.37 97.76 11 256. 19 99.18 12 261.94 100.93 13 267.57 102.99 14 273.08 105.37 15 278.44 108.06 16 283.65 111.04 17 288.68 114.31 18 293.52 117.86 19 298.15 121.67 20 302.56 125. 74 21 306.74 130.05 22 310.66 134.59 23 314.33 139.34 . 24 317.72 144.28 25 320.83 149.42 26 322.52 152.60 ** Corrected JANBU FOS = 1.307 ** (Fo factor = 1.042) Failure surface No.10 specified by 28 coordinate points Point x-surf y-surf No. (ft) (ft) 1 191.84 100.00 2 197.61 98.38 3 203.46 97.05 4 209.37 96.02 5 215.33 95.28 6 221.31 94.85 7 227.31 94.71 8 233.31 94.88 9 239.29 95.35 10 245.24 96.13 11 251.15 97.19 12 256.99 98.56 13 262.75 100.22 14 268.43 102.16 15 274.00 104.39 16 279. 45 106.90 17 284.77 109.67 18 269.94 112.71 19 294 .96 116.01 20 299.80 119.56 21 304 .45 123.34 22 308.91 127.36 23 313.17 131.59 24 317.20 136.03 25 321.00 140.67 26 324.57 145.49 27 327.89 150.49 28 329.14 152. 60 ** Corrected JANBU FOS = 1.308 ** (Fo factor = 1.041) The following is a summary of the TEN most critical surfaces Problem Description : 35th during cost w/30 ft offset Modified Correction Initial Terminal Available JANBU FOS Factor x-coord x-coord Strength (ft) (ft) (lb) 1. 1.273 1.041 190.37 324.69 1.490E+05 2. 1.273 1.042 193.67 322.58 1.456E+05 3. 1.276 1.041 190.73 325.71 1.508E+05 4 . 1.284 1.041 191.10 325.59 1.507E+05 5. 1.297 1.043 197.35 324.01 1.487E+05 6. 1.301 1.041 191.47 329.26 1.570E+05 7. 1.304 1.040 190.00 325.37 1.504E+05 8. 1.306 1.040 190.00 327.41 1.541E+05 9. 1.307 1.042 196.98 322.52 1.465E+05 10. 1.308 1.041 191.84 329. 14 1.570E+05 * * * END OF FILE * * * 3 — cf) co 1 ro I O fcNi I I un - rn O `V CO z o Q - co - (ll 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Box 973 Fort Collins, Colorado 80522 (970) 227-2803 WE TRANSMIT: THE FOLLOWING: FOR YOUR: Attached . Originals n Use nInformation Below n Copy of Letter El Approval n Applications El Information nSpecifications Review &Comment Fl Other Remarks: The City of Greeley is in the process of obtaining a Colorado Division of Reclamation, Mining and Safety (DRMS) permit for the mining and reclamation of historic Lafarge West mining pits in Weld County (see Vicinity Map). The mining will include deepening existing pits and reclamation will involve slurry wall construction to create a below-grade water storage reservoir. As part of the DRMS permitting, the City of Greeley has identified permanent man-made structures owned by ATMOS Energy within or adjacent to the project (see Pre-Mining/Mining Plan Map). To protect your interests in the structure, the City of Greeley is offering an agreement that provides ATMOS Energy compensation for structure damage. A typical agreement is attached. Since mining on the project site will progress at 3H:1 V slopes and slurry wall construction is not known to affect the stability of adjacent structures, the City of Greeley does not anticipate any structure damage. However, to ensure your interests are protected, we request that you please consider the Structure Agreement enclosed. If a representative of your organization will please sign and return the agreement to us, the City of Greeley will in-turn sign the agreement and we will return a copy of the completed agreement to you for your records. Please call me at (970) 227-2803 with any questions or to schedule a meeting for agreement revisions. Signed: William Schenderlein Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred(200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division")requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19&Hard Rock/Metal Mining Rule 63.12 and Rule 64.20) The Colorado Mined Land Reclamation Board("Board') has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 63.12(a), Rule 64.20(a), and C.R.S. §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Buried Gas Lines 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, City of Greeley (print applicant/company name), by Jon Monson (print representative's name), as Director of Water and Sewer (print representative's title), does hereby certify that ATMOS Energy (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for 25th Avenue Site (operation name), File Number M-2002-020 This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock,Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Representative Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public BLUE EARTH `;•__ LETTER OF TRANSMITTAL DATE: July 26,2011 TO: CenturyLink Attn: Carson Ortega 2505 la Avenue Greeley, Colorado 80631 FROM: Bill Schenderlein Blue Earth P.O. Box 973 Fort Collins, Colorado 80522 (970) 227-2803 WE TRANSMIT: THE FOLLOWING: FOR YOUR: II Attached ■ Originals n Use ^ n Information Below I I Copy of Letter El Approval nApplications El Information nSpecifications ■ Review & Comment ' Other Remarks: The City of Greeley is in the process of obtaining a Colorado Division of Reclamation, Mining and Safety (DRMS) permit for the mining and reclamation of historic Lafarge West mining pits in Weld County (see Vicinity Map). The mining will include deepening existing pits and reclamation will involve slurry wall construction to create a below-grade water storage reservoir. As part of the DRMS permitting, the City of Greeley has identified permanent man-made structures owned by CenturyLink within or adjacent to the project (see Pre-Mining/Mining Plan Map). To protect your interests in the structure, the City of Greeley is offering an agreement that provides CenturyLink compensation for structure damage. A typical agreement is attached. Since mining on the project site will progress at 3H:1 V slopes and slurry wall construction is not known to affect the stability of adjacent structures, the City of Greeley does not anticipate any structure damage. However, to ensure your interests are protected, we request that you please consider the Structure Agreement enclosed. If a representative of your organization will please sign and return the agreement to us, the City of Greeley will in-turn sign the agreement and we will return a copy of the completed agreement to you for your records. Please call meeaat�(970) 227-2803 with any questions or to schedule a meeting for agreement revisions. Signed: William Schenderlein Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred(200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division")requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s)having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 &Hard Rock/Metal Mining Rule 63.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board("Board') has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 63.12(a), Rule 64.19(a), and C.R.S. §34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Buried Communication Lines 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, City of Greeley (print applicant/company name), by Jon Monson (print representative's name), as Director of Water and Sewer (print representative's title), does hereby certify that CenturyLink (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for 25th Avenue Site (operation name), File Number M-2002.020 This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Representative Name Date Title STATE OF ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public BLUE EARTH T LETTER OF TRANSMITTAL DATE: July 26, 2011 TO: DCP Midstream 370 17th Street #2775 Denver, Colorado 80202 FROM: Bill Schenderlein Blue Earth P.O. Box 973 Fort Collins, Colorado 80522 (970) 227-2803 WE TRANSMIT: THE FOLLOWING: FOR YOUR: Attached ■ Originals n Use nInformation Below n Copy of Letter ❑ Approval nApplications ❑ Information nSpecifications in Review & Comment n Other Remarks: The City of Greeley is in the process of obtaining a Colorado Division of Reclamation, Mining and Safety (DRMS) permit for the mining and reclamation of historic Lafarge West mining pits in Weld County (see Vicinity Map). The mining will include deepening existing pits and reclamation will involve slurry wall construction to create a below-grade water storage reservoir. As part of the DBMS permitting, the City of Greeley has identified permanent man-made structures owned by DCP Midstream within or adjacent to the project (see Pre-Mining/Mining Plan Map). To protect your interests in the structure, the City of Greeley is offering an agreement that provides DCP Midstream compensation for structure damage. A typical agreement is attached. Since mining on the project site will progress at 3H:I V slopes and slurry wall construction is not known to affect the stability of adjacent structures, the City of Greeley does not anticipate any structure damage. However, to ensure your interests are protected, we request that you please consider the Structure Agreement enclosed. If a representative of your organization will please sign and return the agreement to us, the City of Greeley will in-turn sign the agreement and we will return a copy of the completed agreement to you for your records. Please call me at (970) 227-2803 with any questions or to schedule a meeting for agreement revisions. Signed: Z/1", William Schenderlein Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred(200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division")requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 &Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board("Board') has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Buried Gas Lines 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, City of Greeley (print applicant/company name), by Jon Monson (print representative's name), as Director of Water and Sewer (print representative's title), does hereby certify that DCP Midstream (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for 25th Avenue Site (operation name), File Number M-2002-020 This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Representative Name Date Title STATE OF ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public BLUE EARTH • LETTER OF TRANSMITTAL DATE: July 26, 2011 TO: Great Western Railroad of Colorado 950 Taylor Avenue Greeley, Colorado 80631 FROM: Bill Schenderlein Blue Earth P.O. Box 973 Fort Collins, Colorado 80522 (970) 227-2803 WE TRANSMIT: THE FOLLOWING: FOR YOUR: Attached ■ Originals n Use ^ n Information Below 1 1 Copy of Letter ElApproval nA• pplications Information nS• pecifications ■ Review & Comment 1 1 O• ther Remarks: The City of Greeley is in the process of obtaining a Colorado Division of Reclamation, Mining and Safety (DRMS) permit for the mining and reclamation of historic Lafarge West mining pits in Weld County (see Vicinity Map). The mining will include deepening existing pits and reclamation will involve slurry wall construction to create a below-grade water storage reservoir. As part of the DRMS permitting, the City of Greeley has identified permanent man-made structures owned by Great Western Railroad of Colorado within or adjacent to the project(see Pre-Mining/Mining Plan Map). To protect your interests in the structure, the City of Greeley is offering an agreement that provides Great Western Railroad compensation for structure damage. A typical agreement is attached. Since mining on the project site will progress at 3H:1 V slopes and slurry wall construction is not known to affect the stability of adjacent structures, the City of Greeley does not anticipate any structure damage. However, to ensure your interests are protected, we request that you please consider the Structure Agreement enclosed. If a representative of your organization will please sign and return the agreement to us, the City of Greeley will in-turn sign the agreement and we will return a copy of the completed agreement to you for your records. Please call me at (970) 227-2803 with any questions or to schedule a meeting for agreement revisions. Signed: ,4/;-.1(1/01001 Williahenderlein Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division")requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 64.19 &Hard Rock/Metal Mining Rule 63.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board("Board') has determined that this form, f properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 63.12(a), Rule 64.20(a), and C.R.S. §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Railroad Tracks 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, City of Greeley (print applicant/company name), by Jon Monson (print representative's name), as Director of Water and Sewer (print representative's title), does hereby certify that Great Western Railroad (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for 25th Avenue Site (operation name), File Number M-2002.020 This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock,Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Representative Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public • BLUE EARTH LETTER OF TRANSMITTAL DATE: July 26, 2011 TO: Weld County 915 10th Street Greeley, Colorado 80631 FROM: Bill Schenderlein Blue Earth P.O. Box 973 Fort Collins, Colorado 80522 (970) 227-2803 WE TRANSMIT: THE FOLLOWING: FOR YOUR: II Attached ■ Originals n Use nInformation Below n Copy of Letter Approval nA• pplications El Information nS• pecifications ■ Review & Comment n O• ther Remarks: The City of Greeley is in the process of obtaining a Colorado Division of Reclamation, Mining and Safety (DRMS) permit for the mining and reclamation of historic Lafarge West mining pits in Weld County (see Vicinity Map). The mining will include deepening existing pits and reclamation will involve slurry wall construction to create a below-grade water storage reservoir. As part of the DRMS permitting, the City of Greeley has identified permanent man-made structures owned by Weld County within or adjacent to the project(see Pre-Mining/Mining Plan Map). To protect your interests in the structure, the City of Greeley is offering an agreement that provides Weld County compensation for structure damage. A typical agreement is attached. Since mining on the project site will progress at 3H:1 V slopes and slurry wall construction is not known to affect the stability of adjacent structures, the City of Greeley does not anticipate any structure damage. However, to ensure your interests are protected, we request that you please consider the Structure Agreement enclosed. If a representative of your organization will please sign and return the agreement to us, the City of Greeley will in-turn sign the agreement and we will return a copy of the completed agreement to you for your records. Please call me at (970) 227-2803 with any questions or to schedule a meeting for agreement revisions. Signed: /ill Wi]I am Schenderlein naz one..,' Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred (200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division")requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s)having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect"on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 &Hard Rock/Metal Mining Rule 6.3.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board("Board') has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 6.4.19(a), and C.R.S. §34-32.5-115(4)(e) and with Hard Rock/Metal Mining Rule 6.3.12(a), Rule 6.4.20(a), and C.R.S. §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Roads (35th Avenue and F Street) 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, City of Greeley (print applicant/company name), by Jon Monson (print representative's name), as Director of Water and Sewer (print representative's title), does hereby certify that Weld County (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for 25th Avenue Site (operation name), File Number M-2002-020 . This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Representative Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public BLUE EARTH LETTER OF TRANSMITTAL DATE: July 26, 2011 TO: Xcel Energy 1500 6th Avenue Greeley, Colorado 80632 FROM: Bill Schenderlein Blue Earth P.O. Box 973 Fort Collins, Colorado 80522 (970) 227-2803 WE TRANSMIT: THE FOLLOWING: FOR YOUR: Attached . Originals n Use nInformation Below n Copy of Letter El Approval nApplications Information 1 1 1 Specifications ■ Review & Comment n Other Remarks: The City of Greeley is in the process of obtaining a Colorado Division of Reclamation, Mining and Safety (DAMS) permit for the mining and reclamation of historic Lafarge West mining pits in Weld County (see Vicinity Map). The mining will include deepening existing pits and reclamation will involve slurry wall construction to create a below-grade water storage reservoir. As part of the DRMS permitting, the City of Greeley has identified permanent man-made structures owned by Xcel Energy within or adjacent to the project (see Pre-Mining/Mining Plan Map). To protect your interests in the structure, the City of Greeley is offering an agreement that provides Excel Energy compensation for structure damage. A typical agreement is attached. Since mining on the project site will progress at 3H:1 V slopes and slurry wall construction is not known to affect the stability of adjacent structures, the City of Greeley does not anticipate any structure damage. However, to ensure your interests are protected, we request that you please consider the Structure Agreement enclosed. If a representative of your organization will please sign and return the agreement to us, the City of Greeley will in-turn sign the agreement and we will return a copy of the completed agreement to you for your records. Please call me at (970) 227-2803 with any questions or to schedule a meeting for agreement revisions. Signed: /1/0 /G—' William Schenderlein Structure Agreement This letter has been provided to you as the owner of a structure on or within two hundred(200) feet of a proposed mine site. The State of Colorado, Division of Reclamation, Mining and Safety ("Division") requires that where a mining operation will adversely affect the stability of any significant, valuable and permanent man-made structure located within two hundred (200) feet of the affected land, the Applicant shall either: a) Provide a notarized agreement between the Applicant and the Person(s) having an interest in the structure, that the Applicant is to provide compensation for any damage to the structure; or b) Where such an agreement cannot be reached, the Applicant shall provide an appropriate engineering evaluation that demonstrates that such structure shall not be damaged by activities occurring at the mining operation; or c) Where such structure is a utility, the Applicant may supply a notarized letter, on utility letterhead, from the owner(s) of the utility that the mining and reclamation activities, as proposed, will have "no negative effect" on their utility. ( Construction Materials Rule 6.3.12 and Rule 6.4.19 &Hard Rock/Metal Mining Rule 63.12 and Rule 6.4.20) The Colorado Mined Land Reclamation Board("Board') has determined that this form, if properly executed, represents an agreement that complies with Construction Materials Rule 6.3.12(a), Rule 64.19(a), and C.R.S. §34-32.5-115(4)(e) and with,Hard Rock/Metal Mining Rule 63.12(a), Rule 6.4.20(a), and C.R.S. §34-32-115(4)(d). This form is for the sole purpose of ensuring compliance with the Rules and Regulations and shall not make the Board or Division a necessary party to any private civil lawsuit to enforce the terms of the agreement or create any enforcement obligations in the Board or the Division. The following structures are located on or within 200 feet of the proposed affected area: Overhead Power Lines 1. 2. 3. 4. 5. (Please list additional structures on a separate page) CERTIFICATION The Applicant, City of Greeley (print applicant/company name), by Jon Monson (print representative's name), as Director of Water and Sewer (print representative's title), does hereby certify that Xcel Energy (structure owner) shall be compensated for any damage from the proposed mining operation to the above listed structure(s) located on or within 200 feet of the proposed affected area described within Exhibit A, of the Reclamation Permit Application for 25th Avenue Site (operation name), File Number M-2002-020 . This form has been approved by the Colorado Mined Land Reclamation Board pursuant to its authority under the Colorado Land Reclamation Act for the Extraction of Construction Materials and the Colorado Mined Land Reclamation Act for Hard Rock, Metal, and Designated Mining Operations. Any alteration or modification to this form shall result in voiding this form. NOTARY FOR PERMIT APPLICANT ACKNOWLEGED BY: Applicant Representative Name Date Title STATE OF ) ) ss. COUNTY OF The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public NOTARY FOR STRUCTURE OWNER ACKNOWLEGED BY: Structure Owner Name Date Title STATE OF ) ) ss. COUNTY OF ) The foregoing was acknowledged before me this day of , 20 , by as of My Commission Expires: Notary Public LARGE MAPS AVAILABLE FOR VIEWING AT THE CLERK TO THE BOARD 'S OFFICE , IN THE PUBLIC REVIEW FILE . Hello