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Home My WebLink About20040156.tiff DEPARTMENT OF PLANNING SERVICES 1555 N. 17th Avenue, Greeley, Colorado 80631 Phone (970) 353-6100, Ext. 3540 Fax (970) 304-6498 USE BY SPECIAL REVIEW(MINING OPERATION)APPLICATION FOR THE DEPARTMENT OF PLANNING SERVICES USE ONLY Application Fee Receipt Number Case Number Recording Fee Receipt Number Zoning District Application Checked By: Planner Assigned to Case To be completed by APPLICANT in accordance with procedural guide requirements: 1. I (we), the undersigned, hereby request a hearing before the Weld County Planning Commission concerning a proposed sand and gravel (gravel, coal, borrow pit, etc.) mining operation for the following described unincorporated area of Weld County: LEGAL DESCRIPTION: Please see Exhibit A of the DMG application materials. PARCEL NUMBER: (12 digit number - found on Tax I.D. Information or obtained at the Assessor's Office). 147130000005, 147130000006, 147130000010, 147130000093, 147130000094 2. Surface owner(s)of area of land described Name: Aggregate Industries—WCR, Inc. 1707 Cole Boulevard, Suite 100, Golden, CO 80401 Phone: (303) 985-1070 3. Owner(s)of mineral rights or substance to be mined Name: Aggregate Industries—WCR, Inc. 1707 Cole Boulevard, Suite 100, Golden, CO 80401 Phone: (303) 985-1070 4. Source of applicant's legal right to enter and to mine on the land described (Include certified copy of any document(s) noted): Please see Exhibit N of the DMG application materials. 5. Applicant's address: Aggregate Industries—WCR, Inc. 1707 Cole Boulevard, Suite 100, Golden, CO 80401 Phone(303)985-1070 6. Identify any prior permits for mining held by applicant or affiliated person: USR-905-Platte Valley Pit-C & M Companies USR-1046—Longmont(Tull Farm)—Cooley Gravel Company USR-877,2nd,3rd&4th Am USR-877-Longmont Distel Operation-CAMAS, Colorado, Inc. USR-897, Am USR-897—Riverview Resources—CAMAS, Colorado, Inc. USR-978-83rd J.V. Resource—Best Way Paving Company USR-690,AM USR-690— Loloff Mine, CAMAS, Colorado, Inc USR-1354—Milliken Resources USR-1347—Kurtz Ranch Sand &Gravel Mine USR-1243—Lewis Farm Sand &Gravel Mine EXHIBIT 2004-0156 1 3 7. Description of Operation A. Types and number of operating and processing equipment to be used: Please see Exhibit D of the DMG application materials B. Maximum number of employees: 35, and number of shifts: 2 C. Number of stages to be worked: 5, and periods of time each is to be worked: Cell 1 is complete, Cell 2 is complete, 0.5 years for Cell 3, 1.0 years for Cell 4, and 0.5 years for Cell 5. Please see Exhibit D of the DMG application materials for additional information. D. Thickness of mineral deposit: 15-25 feet, and thickness of the overburden: 3-6 feet. E. This will be a dry pit operation. F. Site entrance/exit points and County roads and bridges to be utilized between site and delivery point(s) (must be coordinated with County Engineer): Truck access onto WCR 6 then east to U.S. Highway 85. 8. Description of reclamation A. Proposed reclamation land use(s): Groundwater lakes and backfilled areas for pasture/wetlands and future industrial use. B. Source of technical advise for reclamation: Applegate Group, Inc. C. Explanation of Reclamation Process: Please see Exhibit E of the DMG application material. I hereby depose and state under the penalties of perjury that all statements, proposals and/or plans submitted with or contained within this application are true and correct to the best of my knowledge. Signature: Ow = Aut .rizedAgent Applegate Group, Consultants for Land,Minerals and Water October 10, 2003 Mr. Kim Ogle Weld County Department of Planning Services 1555 North 17th Avenue Greeley, Colorado 80631 RE: Platte Valley Operation, USR 905 Amendment Application Clarification on request for asphalt/concrete recycling plant Mr. Ogle: In response to our previous conversation, please accept this letter as clarification on the USR 905 Amendment Application, Platte Valley Operation, request for an asphalt/concrete recycling plant. Under Item 2 of the amendment application narrative, a portable asphalt recycling plant is listed with the processing equipment located at the site. It is proposed that the portable recycling plant include both concrete and asphalt recycling, depending on need. The application material Extraction Plan illustrates the request for a portable asphalt/concrete recycling plant. If you have any questions, or need additional information, please feel free to call me at (970) 461-9884 ext. 208. Sincerely, Applega� G u 1 William Schenderlein 1499 West 120th Avenue,Suite 200 • Denver,Colorado 80234-2728 • (303)452-6611 • (Fax)452-2759 Applegate Group, Inc. Consultants for Land,Mineral and Water September 2, 2003 Weld County Department of Planning Services 1550 North 17th Avenue Greeley, CO 80631 RE: Use by Special Review Permit (USR-905) Amendment Application, Sand and Gravel Mining To Whom It May Concern: Aggregate Industries-WCR, Inc., is submitting the following information and attached material as an application to amend the existing Use by Special Review Permit USR-905. This application is for lands located in Section 30, Township 1 North, Range 66 West, of the 6`h P.M., all in Weld County Colorado. The operation is known as the Platte Valley Operation. This letter will supply the narrative segment of the application requirements and is formatted in the same numerical order as the procedural guide for the application submittal requirements. Additional information is provided in response to questions contained in the Use by Special Review Questionnaire. 1. The completed application form along with the application fee is attached. 2. A summary of the mining operation is presented below. For a detailed description of mining and reclamation methods, please see Exhibits C, D, E, and F in the attached DMG application materials. a. Equipment used at this site will be consistent with that used at other sand and gravel extraction operations in the County. Processing equipment at the site includes: Washing, screening, and crushing plant Concrete batching plant Portable asphalt recycling plant Operational equipment may include but not be limited to: 1 Dozer 2 Generators 4 Loaders 1 Scale House 1 Compactor 1 Employee/Storage/QC Trailer 1 Excavator 1 Maintenance Shop 4 Scrapers 1 Fueling/Lubricating Facility 1 Water Truck 2 Portable Toilets Aggregate Industries-WCR,Inc. Page 2 Platte Valley Operation-USR Permit 905 Amendment Application USR Application Requirements b. The maximum number of employees for the Platte Valley Operation will be 19 people working over two daily shifts Monday through Saturday. The mining activities will be limited to daylight hours. In general, maintenance activities will be performed from 6:00 PM through 12:00 midnight. Aggregate hauling will be conducted between 6:00 AM and 4:00 PM. Operational hours for the processing facility and concrete batch plant will be in accordance with the industrial zoning district operational standards. c. The operation will be a dry pit. d. All vehicles will access the property from Weld County Road (WCR) 6. Trucks will access WCR 6 then east to U.S. Highway 85. The applicant has worked with the County engineering staff, public works, and CDOT on improvements/upgrades to the U.S. Highway 85 intersection and that portion of WCR 6 to be utilized by this operation. The proposed amendment will not change production of the current mining operation. It is expected that mining will include excavation of 25 to 30 acres per year, depending on reserves and market demand. Production from the processing plant is anticipated to be approximately one million tons of sand and gravel per year. Some of the material will go directly to the concrete batch plant. However, the majority of the material will be sold as sand and gravel product to customers or hauled off the site to be used at other Aggregate Industries facilities. Assuming a 300-day working schedule each year and 25 tons being hauled per truck, the total truck trips to and from the processing plant are anticipated to be 270 per day. The material going directly to the concrete batch plant will be combined with cement and hauled off-site as batch concrete. The estimated production of the concrete batch plant is approximately 100,000 cubic yards per year. Assuming 7 cubic yards of concrete per mixer, annual loads of concrete are estimated to be 14,300. For 300 working days per year, the total mixer traffic to and from the concrete batch plant is anticipated to be 95 trips per day. e. The Platte Valley Operation special use amended permit boundary will include approximately 190 acres, of which 133 acres will be mined. There will be five mining phases. Mining began in Cell 1, as shown on Exhibit C of the DMG application materials, and has proceeded to Cell 2. Mining in Cell 1 and Cell 2 is mostly complete. Future mining will proceed to Cells 3, 4 and 5. f. The duration of the mining operation will be an additional 1 to 2 years, depending on market demand. It is expected that the operator will excavate approximately 25 to 30 acres per year. This mining operation is intended to be a continuous operation with no significant cessation in mining. Please see Exhibit D of the DMG application materials for a more detailed discussion on the phasing of the project. g. The thickness of the sand and gravel deposit varies from 15 to 25 feet. The overburden and topsoil depth varies from 3 to 6 feet. h. The proposed use of the reclaimed land is for the creation of groundwater lakes, backfilled pasture/wetland areas, and backfilled areas for future industrial use. A full Aggregate Industries-WCR,Inc. Page 3 Platte Valley Operation-USR Permit 905 Amendment Application USR Application Requirements explanation of the reclamation process is described in Exhibit E of the DMG application materials. i. The source of the technical advice for the reclamation is Applegate Group, Inc. 3. A list of property owners within 500 feet of the Platte Valley amended permit boundary is provided on the cover sheet. The list includes names, addresses, and corresponding parcel identification numbers assigned by the Weld County Assessors Office. In addition, a list of names of owners of property within 500 feet of the permit boundary and an Affidavit of Interest Owners—Surface Estate, are attached. 4. A list of the names and addresses of mineral owners and lessees of minerals on or under the proposed mine site is attached along with an Affidavit of Interest Owners — Minerals and/or Subsurface. 5. The following documents are enclosed: a. Reclamation plans, as submitted to the State of Colorado Division of Minerals and Geology(Exhibits E and F and revisions to Exhibits E and F). b. Information for obtaining water supplies for the mining operation is included in the DMG application materials, Exhibit G. c. A typical cross section of interior drainage structure crossings is shown on the attached Special Review Extraction Plan Map. d. The profile and typical cross section of interior haul roads is also included on the Special Review Extraction Plan Map. 6. This Use by Special Review application for a mining operation is consistent with the Weld County Comprehensive Plan. The Comprehensive plan allows for, and encourages, the extraction of sand and gravel deposits. In Section 22-5-80, CM. Goal 2 states that the County should promote the reasonable and orderly development of mineral resources. This application and the accompanying material clearly demonstrate compliance with this goal. In addition, CM. Goal 3 states that the County should minimize the impacts of mining activities on surrounding land uses, roads, and highways. Surrounding land uses are primarily mining, agriculture, and industrial, and impacts to these uses are not anticipated. Additionally, recent upgrades and improvements to roads and highways accessing the site will minimize traffic impacts. All activities at the Platte Valley Operation will be guided by Mine Safety and Health Act (MSHA) and Occupational Safety and Health Act (OSHA) regulations. These requirements, along with the Weld County Comprehensive Plan, specifically CM. Goal 4, which states, "minimize hazardous conditions related to mining activities and the mining site", will minimize or eliminate the potential adverse impact of the operation on surrounding properties. Proposed setbacks and general site conditions and noise and dust controls used by the operator will help to comply with the goals and policies of the Comprehensive Plan. Aggregate Industries-WCR,Inc. Page 4 Platte Valley Operation-USR Permit 905 Amendment Application USR Application Requirements Reclamation activities will be concurrent with the mining operation to minimize the area of disturbance on the site as much as possible. Backfilling of the site will provide areas for future industrial use consistent with the zoning district. Processing operations, including concrete batching, are uses allowed by right in the industrial zoned districts. Impacts to wildlife habitat will be minimized during the mining operation by avoiding the heavy stands of trees adjacent to the South Platte River. In addition, the groundwater lakes and backfilled pasture/wetland areas proposed for the final reclaimed land use within the agricultural zoning district and South Platte River riparian zone, could promote additional wildlife use of the area. 7. The existing Platte Valley Operation is located in the A (Agricultural) Zone District and mining is listed as a use allowed by special review under Section 23-3-40 of the Weld County Code. The proposed amendment area is located in the I-2 and I-3 (Industrial) Zone Districts. It is our understanding that current proposed changes to the Weld County Code, Article III, Division 4 will allow mining by special review I-2 and I-3 zoning districts. 8. The Platte Valley Operation site has a limited amount of prime agricultural ground. The proposed amendment area is located in an industrial zoned area that historically has been utilized for only limited agricultural uses. 9. The protection of the health, safety, and welfare of the neighborhood and Weld County inhabitants is being considered by the applicant. Possible fugitive dust emissions from the site will be minimized by watering and re-vegetation activities. Noise levels will comply with the requirements of the Weld County Department of Public Health and Environment. Haul truck traffic will access the site from only one direction. Trucks will access WCR 6 then east to U.S. Highway 85. The applicant has worked with the County engineering staff, public works, and CDOT on improvements/upgrades to the U.S. Highway 85 intersection and that portion of WCR 6 to be utilized by this operation. Through measures taken by the applicant, along with the Conditions of Approval and Development Standards as established by the County through the permitting process, the consideration of health, safety and welfare of Weld County citizens will be protected. 10. Surrounding land uses are primarily agricultural and industrial in nature. Existing permitted sand and gravel operations exist north, west, and south of the proposed operation. The City of Brighton is south of the Platte Valley Operation. The South Platte River is located immediately west of the site. Compatibility with surrounding land uses will be assured by setbacks, noise limitations, and Conditions of Approval and Development Standards as established by the County. 11. Future development of the proposed amendment area is described as industrial. This area is not within the boundaries of the Brighton Comprehensive Plan. Sand and gravel mining, and the reclamation plan that includes backfilling for future industrial uses, is consistent with the Weld County Comprehensive Plan. 12. The subject site is not located in a geologic hazard area or airport overlay district. In addition, the proposed amendment area does not lie within a floodplain area. Aggregate Industries-WCR.Inc Page 5 Platte Valley Operation-USR Permit 905 Amendment Application USR Application Requirements 13. Drinking water for employees at the site will be bottled water. 14. Please see attached materials for the legal instruments identifying the applicant's interest in the property under consideration. 15. A noise report is not included, but will be provided if deemed necessary by the Weld County Planning Department 16. Other information determined necessary by the Board of County Commissioners or the Department of Planning Services will be provided upon request. Sincerely, APPLEG TE �IN William Schenderlein Project Engineer Use by Special Review Permit (USR-905) Amendment Application Responses to Questionnaire This portion of the application material is provided in response to questions contained in the Use by Special Review Questionnaire. The responses are formatted in the same numerical order as the questionnaire. 1. Aggregate Industries proposes amending the current approved Platte Valley Operation Use by Special Review Permit (USR-905). The Platte Valley Operation is an aggregate mining and processing facility and sand and gravel will continue to be the primary product produced. The principal intended use for the sand and gravel is for construction aggregates. The current aggregate mining operation includes an office and a processing facility for screening, crushing, and washing of aggregate material. Aggregate Industries presently has a ready mix concrete batch plant adjacent to the site and a portion of the material currently goes directly to the batch plant for the manufacture of concrete. For a detailed description of mining and reclamation methods, please see Exhibits C, D, E, and F in the attached DMG application materials. 2. This Use by Special Review amendment application for a mining operation is consistent with the Weld County Comprehensive Plan. The Comprehensive plan allows for, and encourages, the extraction of sand and gravel deposits. In Section 22-5-80, CM. Goal 2 states that the County should promote the reasonable and orderly development of mineral resources. This application and the accompanying material clearly demonstrate compliance with this goal. In addition, CM. Goal 3 states that the County should minimize the impacts of mining activities on surrounding land uses, roads, and highways. Surrounding land uses are primarily mining and industrial and impacts to these uses are not anticipated. Additionally, recent upgrades and improvements to roads and highways accessing the site will minimize traffic impacts. All activities at the Platte Valley Operation will be guided by Mine Safety and Health Act (MSHA) and Occupational Safety and Health Act (OSHA) regulations. These requirements, along with the Weld County Comprehensive Plan, specifically CM. Goal 4, which states, "minimize hazardous conditions related to mining activities and the mining site", will minimize or eliminate the potential adverse impact of the operation on surrounding properties. Proposed setbacks and general site conditions and noise and dust controls used by the operator will help to comply with the goals and policies of the Comprehensive Plan. Reclamation activities will be concurrent with the mining operation to minimize the area of disturbance on the site as much as possible. Backfilling of the site will provide areas for future industrial use consistent with the zoning district. Processing operations, including concrete hatching, are uses allowed by right in the industrial zoned districts. Impacts to wildlife habitat will be minimized during the mining operation by avoiding the heavy stands of trees adjacent to the South Platte River. In addition, the groundwater lakes and backfilled pasture/wetland areas proposed for the final reclaimed land use within the agricultural zoning district and South Platte River riparian zone, could promote additional wildlife use of the area. Aggregate Industries-WCR,Inc. Page 2 Platte Valley Operation-USR Permit 905 Amendment Application USR Questionnaire 3. The existing Platte Valley Operation is located in the A (Agricultural) Zone District and mining is listed as a use allowed by special review under Section 23-3-40 of the Weld County Code. The proposed amendment area is located in the I-2 and I-3 (Industrial) Zone Districts. Processing operations, including concrete batching, are uses allowed by right in these industrial zoned districts. It is our understanding that current proposed changes to the Weld County Code, Article III, Division 4 will allow mining by special review I-2 and I-3 zoning districts. Backfilling of these areas will provide areas for future industrial use consistent with the zoning district. 4. Presently, the areas proposed for amendment are used for the existing concrete batch plant and un-irrigated pastureland. At some point in the past, the un-irrigated pastureland was also cultivated. The current permitted property does cross the South Platte River onto the west side, but none of this area is to be affected. The property contains some trees along the South Platte River, but these have not been disturbed during the current mining and will not be disturbed in the proposed amendment area. The mining area, including portions of the proposed amendment area, is located within the 100-year floodplain of the South Platte River, however, the office, processing plant, and concrete batch plant will remain on higher ground out of the floodplain. Other permitted mining operations are immediately south and north of the site and additional permitted mining operations are adjacent to the property west of the South Platte River. The dominant non-mining land use surrounding the property is agriculture and industrial. 5. A summary of the mining operation is presented below. a. People using the site will generally be limited to the employees on-site and haul truck and mixer truck drivers. The total number of people involved is expected to be less than 50. b. The maximum number of employees for the Platte Valley Operation will be 19 people working over two daily shifts Monday through Saturday. c. The mining activities will be limited to daylight hours. In general, maintenance activities will be performed from 6:00 PM through 12:00 midnight. Aggregate hauling will be conducted between 6:00 AM and 4:00 PM. Operational hours for the processing facility and concrete batch plant will be in accordance with the industrial zoning district operational standards. d. No additional structures are proposed for the site. The current operation includes a concrete batch plant and processing facility including washing, screening, and crushing. The site also contains an office, shop/maintenance building, employee/storage/QC trailer, and scale house. e. No animals will be kept on the property. f. Assuming a 300-day working schedule each year and 25 tons being hauled per truck, the total haul truck trips to and from the processing plant are anticipated to be 270 per day. Aggregate Industries-WCR,Inc. Page 3 Platte Valley Operation-USR Permit 905 Amendment Application USR Questionnaire Assuming 7 cubic yards of concrete per mixer, annual loads of concrete are estimated to be 14,300. For 300 working days per year, the total mixer traffic to and from the concrete batch plant is anticipated to be 95 trips per day. Operational equipment used on-site may include: 1 Dozer 4 Loaders 1 Compactor 1 Excavator 4 Scrapers 1 Water Truck g. The site receives Brighton Fire District protection. h. Domestic water supply (drinking water) for the site is bottled water. Irrigation water for landscaping and dust control is supplied to watering trucks from mine dewatering flows and/or wells (see DMG application materials, Exhibit G, for details). i. Sewage disposal is provided by portable toilets. j. Typical storage or warehousing is not proposed for the site. Storage will include stockpiling of aggregate material prior to processing and hauling for final use. 6. Landscaping for the current operation will not change. The proposed amendment area will include mining operations within an industrial zoned district. Proposed temporary landscaping will include placement of overburden stockpiles along U.S. Highway 85. Once the stockpiles are created, they will be seeded as soon as practicable (based on first available seeding season)to minimize erosion. 7. Stormwater drainage will be directed into the mine pits and/or mine dewatering trenchs. The bottoms of the mine pits are sloped so that drainage entering the pit bottoms is collected in the dewatering trenches. The dewatering trenches are, in turn, sloped so that flows are collected in retention sumps prior to being pumped out of the pits. If excessive drainage occurs from a major storm event, the mine pits act as additional retention storage prior to pumping. Stormwater drainage is managed with an existing Stormwater Management Plan. This plan will be updated to include the proposed amendment area. 8. Mining activities are currently being performed at the site. Mining of the proposed amendment area will occur for approximately 1 to 2 years, depending on market demand. 9. The location of potential topsoil, overburden, and aggregate materials are identified on the Exhibit C of the DMG application materials. STATE OF COLORADO DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 1313 Sherman SC,Room 215 Denver,Colorado 80203 DIVISION OF Phone:(303)866-3567 FAX:(303)832-8106 MINERALS 6L GEOLOGY RECLAMATION CONSTRUCTIONMATERIAIS MINING•SAFETY REGIILAR(112)OPERATION RECLAMATION PERMIT APPLICATION FORM Goveeror s Greg E.Walther CHECK ONE: X There is a File Number Already Assigned to this Operation Ronald ive Director W.Cattany Permit# M - 19-89 -120 (Please reference the file number currently assigned to this operation) Acting Division Director New Application(Rule 1.4.5) X Amendment Application(Rule 1.10) Conversion Application(Rule 1.11) Permit# M -19 -89 - 1 2 0 (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 I,any sections of Exhibit 65(Geotechnical Stability.Exhibit;and(3)the application fee. When you submit your application,be sure to include one(1)complete signed and notarized IVORY ORIGINAL and one(1)copy of the completed Ivory 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): A rye.r o .� y '-e= rn r:,,el-ri oG — is*CP . TI^r 1.1 Type of organization(corporation,partnership,etc.): Corporation 1.2 I.R_S.Tax ID.No.or Social Security Number: 8 4-0404340 2. Operation name(pit-mine or site name): Platte Valley Operation 3- Permitted acreage(new or existing site): 141 permitted acres 3.1 Change in acreage(±) 4 9 acres 3.2 Total acreage in Permit area 1 9 0 acres 4. Fees: 4.1 New Application $2.344.00 application fee 4.2 New Quany Application $2906.00 4.4 Amendment Fee quarry application 4.5 Conversion to 112 operation(set by statute) 82. 44 0000 conveamenrsion fee 882344.00 conversion fee 5. Primary eommoditie(s)to be mined: ^-,cct r e crate 5.1 Incidental commoditie(s)to be mined: 1. N/A Ibs/Tonshr 2. / lbs/Tonshr 3. / Ibs/TonsAr 4- / lbs/Tonsfvr 5. / lbs/Tons/yr 5.2 Anticipated end use of primary commoditie(s)to be-nined: Construction Nia t e r i a 1 a. 5.3 Anticipated end use of incidental commoditie(s)to be mined: VA -2- 6. Name of owner of subsurface tights of affected land: Refer to Exhibit 0 If 2 or more owners,"refer to Exhibit O". 7_ Name of owner of surface of affected land: Refer to Exhibit N 8. Type of mining operation: X Surface Underground 9. Location Information: The center of the area where the majority of mining will occur: COUNTY: Weld PRINCIPAL MERIDIAN(check one): X 6th(Colorado) 10th(New Mexico) _ Ute SECTION(write nuanber): S 30 TOWNSHIP(write number and check direction): T I X North South RANGE(write number and check direction): R 6 6 East X West QUARIER SECTION(check one): NE NW SE X SW QUARTER/QUARTER SECTION(check one): X NE NW SE SW GENERAL DESCRIPTION:(the number of miles and direction from the nearest town and the approximate elevation): Apprnxi_m tpty 1 mile north of Briahton - elevation 4940 10. Primary future(Post mining)land use(check one): Cropland(CR) X PastureIand(PL) General Agriculture(GA) Rangelaad(RL) Forestry(FR) Wildlife Habitat(WL) Residential(RS) Recreation(RC) Indnstrial/Commercial(IC) Developed Water Resonrces(WR) Solid Waste Disposal(WD) I I. Primary present land use(check one): Cropland(CR) _x_ Past eland(PL) General Agriculture(GA) Rangeland(RL) Forestry(FR) Wildlife Habitat(WL) Residential(RS) Recreation(RC) 1nduslrt/Conimercial(IC) Developed Water Resour ces(WR) 12. Method of Mining: Briefly explain raining method(e.g truck/shovel): Dry m i n i n g- techniques using scrapers , front-end loaders, and rack hoes to remove aggregate . 13. On Site Processing: j Crushing/Sc erring 13.1 Briefly explain mining method(e.g.tuck/shoveI): Ma t P r al_ conveyed to processing' plant for washing', crushing-, and screenina. offeration of concrete batch plant and concrete/ asphalt recycle plant . .mast any designated chemicals or acid-producing materials to be used or stored within permit area_ r/a - 3 - 14. Correspondence Information: • APPLICANT/OPERATOR (name,address,and phone of name to be used on pest) Contacts Name: Patrick Ward Title: Vice President/ General CompanyName: Aggregate Industries - WCR, Inc. Manager Street/P.O.Box: 1707 role Rlvd . Suite 100 P.Q.Box: City: Golden State: Colorado Tap Code: 80401 Telephone leer: ( 3 0 3 )- 716-5327 Fax Number: Q? )- 716-6140 PERMITTING CONTACT (if different from applicant/operator above) W Contact's Name: Hi 1 1 Sc iiender1 Pin Title: Project Engineer Company Name: Apt,iecrate Group , Tnc. Street/P.O.Box: 5441 Hoeing Drive, Suite 200 P.O.Box: City: Loveland State: roforadn Zip Code: 90538 Telephone Number f 970 1- 4.6 I-988 4 Fax Number: 1 970 )- 613-1177 INSPECTION CONTACT Contact's Name: Connie Davis Titde:Land Resources Assistant Company Name: Aaaregate Industries - WCR, Inc. Street/P_O.Box: ?61 71st. Avenue P.O.Box: City: Greet ey State: Colorado ZipCode: 80634 Telephone Number: ( q 7 n )- ?16-6576 Fax Number: ( 970 )- 378-6856 CC: STATE OR FEDERAL LANDOWNER(if any) Agency: Street: City: State: Zip Code: Telephone Number ( )- CC: STATE OR FEDERAL LANDOWNER(if any) Agency: Street: City: State: Zip Code: Telephone Number. ( )- - 4 - .•••••.. Description of Amendment or Conversion: If you are amending or converting an existing operation,provide a brief narrative describing the proposed change(s). Increasing permit boundary to include additional acgreaate reserves . Maps and Exhibits: Five(5)complete,unbound application packages must be submitted One complete application package consists of a signed application form and the set of maps and exhibits referenced below as Exhibits A-S,Addendum 1,and the Geotecbmcal Stability Exhibit- Each exhibit within the application must be presented as a separate section. Begin each exhibit on a new page. Pages should be numbered consecutively for ease of reference. If separate documents are need as appendices,please reference these by name in the exhibit With each of the five(5)signed application forms,you must submit a corresponding set of the maps and exhibits as described in the following references to Rule 6.4,6.5,and 1.62(I)(b): EXHIBIT A Legal Description EXHIBIT B Index Map EXHIBIT C Pre-Mining and Mining Plan Map(s)of Affected Lands EXHIBIT D Mining Plan EXHIBIT E Reclamation Plan EXHIBIT F Reclamation Plan Map EXHIBIT G Water Information EXHIBIT H Wildlife Information EXHIBIT I Soils Information EXHIBIT I Vegetation Information EXHIBIT K Climate Information EHIBIT L Reclamation Costs EXHIBIT M Other Permits and Licenses EXHIBIT N Source of Legal Right-To-Enter EXHIBIT 0 Owners of Record of Affected Land(Surface Area)and Owners of Substance to be Mined EXHIBIT P Municipalities Within Two Miles E)G4TRIT Q Proof of Mailing of`notices to County Commissioners and Conservation District EXHIBIT R Proof of Filing with County Clerk or Recorder EXHIBIT S Permanent Man-Made Structures Rule I.6.2(1)(b) ADDENDUM I-Notice Requirements(sample enclosed) Rule 6.5 Geotechnical Stability Exhibit(any required sections) The instructions for preparing Exhibits A-S,Addendum 1,and Geotechnicai Stability Exhibit are specified under Rule 6.4 and 6.5 and Rule 1.6.2(1)(b)of the Rules and Regulations. If you have any questions on preparing the Exhibits or content of the information require_, or would hie to schedule a pre-application meeting you may contact the Office at 303-866-3567. - 5 - Responsibiities as a Permittee: upon application approval and permit issuance,this application becomes a legally binding document Therefore, there are a number of important requirements which you, as a permittee, should fully understand. These requirements are listed below. Please read and initial each requirement,in the space provided,to acknowledge that you understand your obligations. If you do not understand these obligations then please contact this Office for a full explanation. 1,Y< I. Your obligation to reclaim the site is not limited to the amount of the financial warranty. You assume legal liability for all reasonable expenses which the Board or the Office may incur to reclaim the affected lands associated with your mining operation in the event your permit is revoked and financial warranty is forfeited; 2. The Board may suspend or revoke this permit, or assess a civil penalty,upon a finding that the permittee violated the terms or conditions of this permit,the Act,the Mineral Rules and Regulations, or that information contained in the application or your permit misrepresent important material facts; \-" 3. If your Inkling and reclamation operations affect areas beyond the boundaries of an approved permit boundary,substantial civil penalties,to you as permittee can result; cAL V 4. Any modification to the approved mining and reclamation plan from those described in your approved application requires you to submit a permit modification and obtain approval from the Board or Office; 5. It is your responsibility to notify the Office of any changes in your address or phone number; 6. Upon permit issuance and prior to beginning on-site mining activity, must sign the � you post a at �..,, entrance of the mine site, which shall be clearly visible from the access road, with the following information (Rule 3.1.12): a. the name of the operator: b. a statement that a reclamation permit for the operation has been issued by the Colorado Mined Land Reclamation Board; and, c. the permit number. _�. The boundaries of the permit boundary area must be marked by monuments or other markers that are .;leanly visible and adequate to delineate such boundaries prior to site disturbance. r ' 8. It is a provision of this permit that the operations will be conducted in accordance with the terms and condrti©ns listed in your application,as well as with the provisions of the Act and the Construction Material Rules and Regulations in effect at the lime the permit is issued. 9. Annually,on the anniversary date of permit issuance, you must submit an annual fee as specified by Statute, and an annual report which includes a map describing the acreage affected and the acreage reclaimed to date(if there are changes from the previous year), any monitoring required by the Reclamation Plan to be submitted annually on the anniversary date of the permit approval Annual fees are for the previous year a permit is held. For example, a permit with the anniversary date of July 1, 1995,the annual fee is for the period of July 1, 1994 through June 30, 1995. Failure to submit your annual fee and report by the permit anniversary date may result in a civil penalty,revocation of your permit, and forfeiture of your financial warranty. It is your responsibility, as the permittee, to continue to pay your annual fee to the Office until the Board releases you from your total reclamation responsibility. %i- 10. For joint venture/partnership operators: the signing representative is authorized to sign this document and a power of attorney(provided by the partner(s)) authorizing the signature of the representative is attached to this application. ' fE TO COM ENTORS/OBJECTORS: It is likely there will be additions, changes,and deletions to this document prior to final decision by the Office. Therefore, if you have any comments or concerns you must contact the applicant or the Office prior to the decision date so that you will know what changes may have been made to the application document. The Office is not allowed to consider comments,unless they are written, and received prior to the end of the public comment period. You should contact the applicant for the final date of the public comment period. If you have questions about the Mined Land Reclamation Board and Office's review and decision or appeals process, you may contact the Office at (303) 866-3567. - 7 - Certification: 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 sinnificant 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.1LS_). 2. No mining operation will be located on lands where suit operations are prohibited by law(Section 34-32.5-115(4)(f),CRS_; 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,CRS_)as determined through a Board finding. 4. I understand that statements in the application are being madr under penalty of perjury and that false statements made herein are punishable as a Class 1 misdemeanor pursuant to Section 18-8-503,CRS_ Signed and dated this 22, f/ day of tat__ ;003 . 1 � � *jv Pr C��;r'r-i C S +Z'\lS- (i_C� 10\�C Corporation Attest(Seal) { ) Applicant/Operator or Company Name ) ( h� 1 (Ai tit P 47\-(11 � _/' f Signed: Signed: '(f�c%� i/CcLC Tide: \1 Lee- l i�� v✓f��? I t �2d2iaata-.t Corporate Secretary or Equivalent Town/City/County Clerk State of (— �6-ea}t-¢/Let' )ss County of Tor✓ The f g nstramcnt was acknowledged before ms this -2 2 d day of te by a tt-ErG Cfik �C as U &e>1 &c!&t' stn¢ 2.of 2oU 3 �\9.�ct�rt ca—Brie e92e Notary Public F " DY My Commission expires: ki. telS, 0200e/ / SIGNATURES MUST BE LN BLUE LNK M.imintlmchsfaratslC-onstatiav 112-doc (10/15121101) EXHIBIT A Legal Description A tract of land located mainly in the east half of the west half of Section 30, Township 1 North, Range 66 West of the Sixth Principal Meridian, Weld County, State of Colorado as described in the attached description. The permit boundary with the proposed amended area includes approximately 190 acres. Platte Valley Operation DMG 112 Permit Amendment Page 1 LEGAL DESCRIPTION From the Point of Beginning, South 89d52'41"West for 538.39', South 00d07'19" East for 510.89', North 89d52'41"East for 544.48', South 01d39'00"West for 828.37', South 01d39'00" West for 662.69', South 14d26'00"West for 67.80', South 01d39'00" West for 450.00', South 06d53'00" East for 101.10', South 01d39'00"West for 706.99' South 89d51'45" West for 37.57', South 00d09'00" East for 833.52', South 89d47'00"West for 499.97', South 00d28'00"East for 489.07', South 89d47'32"West for 1196.15', North 00d02'10"West for 2649.80', North 00d01'50"West for 1657.88', South 89d46'42"East for 766.99', North 00d07'19"West for 1000.13', South 89d46'42" East for 550.00', South 89d48'10" East for 381.83', South 20d45'10" East for 90.50', South 07d59'10" East for 109.80', A Curve, Chord Bearing South 07d02'10" East with a Chord Length of 186.9', and a Radius of 5630', South 19d49'36" East for 22.40', South 19d52'53" East for 32.20', South 19d50'31" East for 47.70', A Curve, Chord Bearing South 04d16'47" East with a Chord Length of 174.06', and a Radius of 5655', To the Point of Beginning. And East Line of Parcel 9: From the Point of Beginning, A Curve, Chord Bearing South 00d51'35" East with a Chord Length of 502.01', and a Radius of 5655', South 01d39'00" West for 8.93' And PT N2N2NE4 30 1 66 Beg N4 Cor Sec South 89d56' East for 381.3' to W Ln Hwy 85, South 20d52' East for 90.5', South 08d06' East for 109.8', South 07d09' East for 186.9', South 19d56' East for 22.4' to NW Ln McCanne Ditch, South 25d24' East for 33' to SE Ln McCanne Ditch, South 19d56' East for 47.7', South 04d15' East for 187.4', to S Ln N2N2NE4, South 89d EXHIBIT B Vicinity Map See attached map. Platte Valley Operation DMG 112 Permit Amendment Page 2 0. . ~ "L R 67 W I R 66 w ' N •+ ,, - 24 ' ,., 1 19 „Weis • I p� it.•kW' .----.2 , T ` -_..)......_...r-"-•---p =•tea-... 7 �; tar> JPendenee f 1 *$rKl �, SCh001 _._..: _WELO _____s�._C� 41A�T1(.P.Q .. _•, •L_ _hn.t 4.42 _ r • c . ';� 495()_ _ •_ • II #4a. i • water y v. •� t ,, 3 ! -. a Rad. __ t; • ! Wsttenberg / t • • I. t ! !t.it4r 1 +��^^.• 2.7,...040-.-- -... • .. $ ,1 -. DI /' r r + - • .-: l �. 6 /• 9. 4940 . .. -+�^4.4.. k 0.. € 4 .._ 1 ' ! I .=8 X11 �: r ' ] \IN, �. &C6`Lv (rt. yam.'+— :rst;` tt' • /�' `�� s��,'�'•If I 1 ;... t~ • 1ff t • � Ff.rte .{•,. I / \ 1 I� '✓ 4;— n-e?' rl { y • }• 4958 Ir / ' ' .( --...1, ;71-i . ..swe..40...if1.,. 'f1 j `yam F.. ?• / t Orr w: , t ;t •} • ; / .., 45 as/ / Il ` t `/r'' -� W1 0; i la•e:r.., ,, 't i .0't...e.rv., i r. .. .41 "' 4 ex ;":1:1; f tt4 P. Jf T —a. (<t .0 1500 750 0 1500 VICINITY SCALE IN FEET MAP _ a. Data- 03/12/03 Applegate .b6 No: 02-168 AGGREGATE INDUSTRIES D�� > Group, . . 03 D..go. PLATTE VALLEY PIT (or.,kmtu for Lena Mmaalc•ut we.- la 11449 woe 120th A•e.Ste 2W 3441 Noa,g Dr-Ste 200 C*eked OF Dm.a.CO50234-3726 Lo.foal.0001330 �' (303)1324611 (970)461-46W 00 Fie: RFWIC Hu:(303)432.2'34 O•011(4?0)613.11?% oe Scale' •-1,500• emit.mlo^ps urpoTmt wehApplepaleGrwpmo• N EXHIBIT C Pre-Mining/Mining Plan Map See attached map. Platte Valley Operation DMG 112 Permit Amendment Page 3 EXHIBIT D Mining Plan Aggregate Industries proposes amending the current approved Platte Valley Operation Mined Land Reclamation Board 112 Reclamation Permit (M-89-120). The Platte Valley Operation is located in Weld County, Colorado, just east of the community of Wattenberg. The site is immediately east of the South Platte River, west of State Highway 85, and between Weld County Road(WCR) 2 and WCR 6. Sand and gravel will continue to be the primary product produced from the Platte Valley Operation. The principal intended use for the sand and gravel is for construction aggregates. The current aggregate mining operation includes an office and a processing facility for screening, crushing, and washing of aggregate material. Aggregate Industries presently has a ready mix concrete batch plant adjacent to the site and a portion of the material currently goes directly to the batch plant for the manufacture of concrete. Other permitted mining operations are immediately south and north of the site and additional permitted mining operations are adjacent to the property west of the South Platte River. The dominant non-mining land use surrounding the property is agriculture. Presently, the areas proposed for amendment are used for the existing concrete batch plant and un-irrigated pastureland. At some point in the past, the un-irrigated pastureland was also cultivated. The current permitted property does cross the South Platte River onto the west side, but none of this area is to be affected. The property contains some trees along the South Platte River, but these have not been disturbed during the current mining and will not be disturbed in the proposed amendment area. The mining area, including portions of the proposed amendment area, is located within the 100-year floodplain of the South Platte River, however, the office, processing plant, and concrete batch plant will remain on higher ground out of the floodplain. Current mining within the permitted boundary and additional borehole drilling and testing in the proposed amendment area have verified that the Platte Valley Operation property contains a significant commercial deposit of sand and gravel. The depth of the soil and overburden ranges from less than 3 feet to 6 feet and consists of clay, clay loams, and silty/sandy loams. The depth of the aggregate material ranges from 15 feet to 25 feet below the overburden material. The underlying material is a shale and claystone bedrock. The amended permit boundary would be an increase of about 49 acres, vacating about 18 acres on the southern end of the existing permit and adding approximately 67 acres to the east (see the Pre-Mining/Mining Plan Map, Exhibit C). The resulting permit boundary will encompass approximately 190 acres with about 133 acres being mined. The remaining area mainly consists of the processing plant and office space, setbacks, and road and utility right-of-ways. Aggregate Industries will maintain a 25-foot minimum setback from the proposed permit boundary and a 100-foot minimum setback from the South Platte River. A minimum setback of 25 feet will be maintained from the Central Colorado Water Conservancy District (CCWCD) wells located within the amended permit boundary. The CCWCD conveyance ditch may be relocated during mining and reclamation activities. Roads, fences, and other structures located within the Platte Valley Operation DMG 112 Permit Amendment Page 4 proposed permit boundary may be removed during the mining process. The applicant owns these items potentially being removed. Mine Phasing Aggregate Industries anticipates mining at the Platte Valley Operation site, including the proposed amendment area, will be complete in approximately 2 years. However, the rate of mining and overall life of the mine is dependent on several factors including product demand. The existing operation and amended area will continue to be mined in phases. Since approximately 133 acres will eventually be mined on the site,mining in phases will limit the area of disturbance at any one time. The Platte Valley Operation will be mined in five phases, with each of the phases being directly related to each of the five cells being mined (see the Pre- Mining/Mining Plan Map, Exhibit C). The following table is the approximate acreage for mining each phase. Mining in Cells 1 and 2 is almost complete and the majority of future mining will occur in Cells 3, 4, and 5. Mining Cell Area(acres) 1 30 2 40 3 12 4 32 5 19 Total 133 Mining in Cell 1 is generally complete and portions of the cell are currently being used as sedimentation basins for fines produced by the on-site processing facility. It is anticipated that process fines will be used to backfill the majority of Cell 1. The mining of Cell 2 is also nearly complete. Cell 3 will be mined next, followed by Cell 4, and finally Cell 5 will be mined last. As necessary, the existing concrete batch plant will be moved to access the aggregate deposit in Cell 5. Upon completion, portions of all the cells may also be used as sedimentation basins for process fines produced on-site. Mining Methods The deposit will continue to be dry mined through the use of dewatering trenches and pumps. As mining progresses, dewatering trenches will be constructed around the perimeter of each cell and sloped to collect groundwater in selected areas of the pit. Pumps will be used at these locations to remove the water that drains from the deposit and surrounding alluvium. If necessary, water from the trenches will be circulated through a settling basin prior to it being discharged to the South Platte River. When the alluvium is sufficiently dewatered, the aggregate material will be recovered using equipment and facilities typical for sand and gravel mining operations. The equipment and facilities may include, but are not limited to the following: Platte Valley Operation DMG 111 Permit Amendment Page 5 Processing Equipment The site currently contains a processing plant for screening, crushing, and washing of aggregate material. A portable recycling plant for concrete/asphalt will be used on the site as needed. The existing concrete batch plant adjacent to the site will be added to the new permit boundary. The concrete batch plant and portable recycling plant will remain as part of the final reclamation. Earth Moving Equipment Dozers, loaders, scrapers, excavators, and compactors will continue to be used for mining and earth moving operations. Field conveyors will be used as needed for mining operations. Miscellaneous The site currently contains an office/shop area and scale house to support the mining and processing operations. No additional facilities will be created for the proposed amendment area. Dewatering pumps and generators and watering trucks will be used within the proposed amendment area as needed. Similar to the current mining operation, as mining progresses in the proposed amendment area, topsoil and overburden will be stripped with scrapers to expose the aggregate product below. All soil and overburden material will be used on-site for reclamation so long-term stockpiling of these materials is not anticipated. If overburden stockpiles are necessary, they will be located within, or adjacent to, the proposed mining cell and placed so that they do not impede potential floodwaters. Mining of the aggregate will progress down to the underlying claystone bedrock. The active mining face will extend no more than 1000 feet in length. During mining and prior to reclamation, the cell walls will be a nearly vertical to '1H:I V slope. The aggregate material will be temporarily stockpiled or placed directly onto a conveyor system for transport. The conveyor system will transport the material to be processed at the existing processing facility. During most of the current and proposed mining operation, overburden from the mining area will be used for reclamation of the mined out cells. As the mining cells are excavated, side slopes will be created and portions of cells will be partitioned off to create sedimentation basins as necessary. Although the mining face will remain disturbed until the cell is mined out, the exterior walls of the cell will be backfilled, graded to a 3H:I V slope, and seeded as mining progresses. The area along the exterior cell wall where backfilling and grading has been started, but has not yet been completed, will be no greater than 1000 feet in length. Once backfilling and grading has been completed in an area, the top of the slope and the side slopes above the anticipated water level will be seeded as soon as practicable (based on first available seeding season). Portions of the mine cells will also be used as sedimentation basins for process fines produced from the on-site processing facility. As portions of the sediment basin become full, new sedimentation areas within the cell will be created and the full sediment basins will be readied for reclamation. As part of the proposed final land use, it is likely that the mining cells will also receive overburden and bedrock material from mining of the adjacent Wattenberg Lakes site Platte Valley Operation DMG 111 Permit Amendment Page 6 (Permit Number M2001008). During final backfilling and grading of the sediment basins, slopes will be graded to at least 3H:1 V. Due to the timing and variability in available backfill for reclamation, Cells 2 and 4 and Cell 3 will be reclaimed as groundwater lakes. As mining in the cells and side slope reclamation is completed, the lakes will be allowed to fill, reducing the overall disturbed area. As additional backfill material becomes available, the lakes will be backfilled and the groundwater lake area will be reduced. It is anticipated that no more than 100 acres of groundwater lake will be created. This area may be less depending upon the availability of backfill materials and the mining operation schedule. Slope grading and backfilling for reclamation will be done concurrently with mining. Slopes will be graded to a minimum 3H:I V slopes. Once backfilling and grading has been completed in an area, the area will be seeded as soon as practicable (based on first available seeding season). In order to gain an understanding of the extent of the mining operation, it is helpful to know the acres disturbed by different aspects of the mining operation. Each aspect is listed in the following table with associated disturbed area. The table illustrates a point in time when the mining disturbance will be at its maximum. This occurs during the mining of Cell 4, prior to mining in Cell 5. The mining disturbance will be at its greatest when the northern portion of Cell 4 has been mined out and the mining face is nearing the southern portion of the cell. At this time, Cell 1 will be backfilled and the exterior walls of Cell 2 and Cell 3 will be graded and seeded for the creation of groundwater lakes. Portions of Cells 2, 3, or 4 may also be in use as sedimentation basins. Although reclamation along the exterior walls of Cell 4 will be in .-.. progress, the mining face will at its greatest length. Disturbed Area Aspect _Mining Operation jacres) A Stripped overburden and topsoil in anticipation of mining 30 B Active mining face with 1/2H:1V slope, 1000 ft x 20 ft 0.5 C Exterior cell wall being backfilled and graded to 3H:1V side slopes, 1000ftx65ft 1.5 D Top of slope and side slope above lake water level to be seeded, 1000ftx60ft 1.5 E Roads and conveyors 1.0 F Process plant site, office, and scale house 18.0 TOTAL DISTURBED AREA 52.5 Platte Valley Operation DMG 112 Fermi Amendment Page 7 EXHIBIT E Reclamation Plan Final reclamation for the Platte Valley Operation will include creation of groundwater lakes and backfilling. The backfilled areas will include pastureland (with areas of created wetlands) and land for future industrial use (see the Reclamation Plan Map, Exhibit F). Some of the created wetland areas will provide mitigation for the adjacent Wattenberg Lakes site (Permit Number M2001008), while other areas may be used for wetland banking. The size of the groundwater lakes and backfilled areas will depend upon the availability of backfill materials, but the groundwater lakes will be no greater than 100 acres and no less than 10 acres. As backfilling occurs, the areas within the currently permitted site boundary will generally be backfilled for pastureland/wetlands while the mine cell within the proposed amendment area will be backfilled for future industrial use. The office and shop buildings and concrete batch plant will remain on the site following reclamation. In this area of Weld County, mining, water storage, and industrial businesses are predominant land uses along the State Highway 85 corridor. In addition, the western side of the mine site consists of riparian areas along the South Platte River. Therefore, the combination of proposed post mining uses is compatible with surrounding land uses. The remaining area within the proposed permit boundary will consist of access roads and reclaimed or otherwise undisturbed land. The approximate acreage of each of these areas is: Final Land Use Area(acres) Backfilled for wetland/upland areas 30 Backfilled for future industrial use 19 Groundwater lake and backfilled for 52 wetland/upland areas Groundwater lake and backfilled for future 32 industrial use Access roads 1 Reclaimed or undisturbed land 56 TOTAL 190 Some roads inside the proposed amendment area and existing permit boundary will remain for accessing and maintaining the wetland mitigation and banking areas and CCWCD wells. Conveyor systems will be removed from the site during final reclamation activities. Roads not necessary for future access and other disturbed areas associated with the conveyor system will be reclaimed with vegetative cover to stabilize the soil and minimize erosion. As mining progresses, overburden and process fines will become available and used for backfilling of the excavated mine cells. Additional overburden, process fines, and inert material from the Wattenberg Lakes mine site (Permit Number M2001008) and other sites will also become available for backfilling of the mine cell areas. Platte Valley Operation DMG 112 Permit Amendment Page 8 Backfilled Areas In Phase 1 of the reclamation, mining Cell 1 will be backfilled to create intermixed wetland and upland pastureland as mining progresses. The created wetland areas will provide mitigation for the adjacent Wattenberg Lakes site (Permit Number M2001008) and a source for wetland banking. Created slopes will generally be shallow and flowing, but will be at a minimum 3H:1 V. The fmal elevation of the backfilled area will be determined by estimates of the local groundwater elevation. In general, the mine cell will be backfilled to a height approximately 2 feet above the average groundwater elevation. Although the backfilled ground elevation may be below the high groundwater elevation in the created wetland areas, backfilled elevations will still be high enough to prevent permanently exposed groundwater. It is anticipated that the majority of the backfill material for Cell 1 will be composed of fines from the on-site processing facility, but overburden material from the site and the adjacent Wattenberg Lakes site may also be used. For reclamation during Phase 5, overburden material will be available to backfill mining Cell 5 for industrial use, including the existing concrete batch plant. Additional overburden material will also be available from the adjacent Wattenberg Lakes site. The backfill material for this area will be placed and compacted to provide adequate stability for the anticipated future use. The final elevation of the backfilled area will be at least 2 feet above the estimated maximum local groundwater elevation. In addition, the final backfill elevation in this area will be as near to the existing and surrounding ground elevation as possible (depending on the availability of backfill material). Grading will create relatively flat surfaces appropriate for industrial uses. Any slopes remaining will be reclaimed to a minimum 3H:1 V grade. As final slopes are graded, topsoil will be placed to provide a growing medium for the vegetation cover used to stabilize the area prior to the final land use. Groundwater Lake and Backfilling During the concurrent reclamation in Phases 2, 3, and 4, the mining cells will be graded to create groundwater lakes. The combined surface area of the groundwater lakes will be no greater than 100 acres. Although reclamation during Phase 2 will create a groundwater lake within Cell 2, Phase 4 of the reclamation will likely create a groundwater lake that combines Cell 2 and Cell 4. During reclamation and creation of the groundwater lakes, areas of Phases 2, 3, and 4 may also be used as sedimentation basins for the on-site processing facility. Reclamation in Phases 2, 3, and 4 will include backfilling, grading, and seeding to create groundwater lakes from the mining pits. As grading and seeding is completed in each phase, the groundwater lakes will be allowed to fill, reducing the extent of disturbed area during the mining operation. However, the final size and extent of the groundwater lakes is not fixed. Although the groundwater lakes will be created and stabilized for final reclamation, they may be partially or completely backfilled to reduce their overall surface area. As overburden and other material becomes available from the site and the adjacent Wattenberg Lakes site, the lakes will be backfilled to create areas for either pastureland with created wetlands (Phases 2 and 3) or future industrial use (Phase 4). Since parts of Cells 2, 3, and 4 may also be used as sedimentation basins, it is likely that process fines will also compose a portion of the backfill material during Platte Valley Operation DMG 112 Permit Amendment Page 9 reclamation Phases 2, 3, and 4. The final surface area of the groundwater lake will not be less than 10 acres. For the backfilled areas in Phases 2 and 3, the final ground surface will contain slopes that are generally shallow and flowing, but will be at a minimum 3H:1V. The final elevation of these backfilled areas will be determined by estimates of the local groundwater elevation. In general, the backfill will be to a height approximately 2 feet above the average groundwater elevation. Although the backfilled ground elevation may be below the high groundwater elevation in the created wetland areas, backfilled elevations will still be high enough to prevent permanently exposed groundwater. Portions of the groundwater lake that are backfilled in Phase 4, including the proposed amendment area, will be backfilled for future industrial use. The backfill material for this area will be placed and compacted to provide adequate stability for the anticipated future use. The final elevation of the backfilled area will be at least 2 feet above the estimated maximum local groundwater elevation. In addition, the final backfill elevation in this area will be as near to the existing and surrounding ground elevation as possible (depending on the availability of backfill material). Grading will create relatively flat surfaces appropriate for industrial uses. Any slopes remaining will be reclaimed to a minimum 3H:1V grade. As final slopes are graded, topsoil will be placed to provide a growing medium for the vegetation cover used to stabilize the area prior to the final land use. As groundwater lake slopes and backfilled areas are graded, topsoil will be used to provide a growing medium for vegetation. Depending on groundwater elevations, the final surface elevation of the backfilled cell may be below the existing and surrounding ground elevation. Any slopes remaining will be reclaimed to a minimum 3H:1 V grade. Reclamation Measures/Materials Handling The mining and backfilling will create the rough topography for the land uses. The backfilling and grading will be done to provide stabilized pastureland and future industrial areas and to minimize erosion. The backfill material will consist of native bedrock claystone, process fines, overburden, other inert materials, and topsoil. The material will be generated from the Platte Valley Operation, the adjacent Wattenberg Lakes site (Permit Number M2001008) and other sites. There will not be known toxic or hazardous materials in the backfill material. Additionally, it is not likely that acid forming or toxic materials will be encountered during mining. The mining will not leave highwalls on the property. There will be no auger holes, adits, or shafts left on the property. Topsoiling The top two to six inches of soil on the property and within the proposed amendment area is generally classified as topsoil. This layer includes the root zone of grasses and crops, which will be stripped and stockpiled separately. By using concurrent reclamation techniques, the topsoil is Platte Valley Operation DMG 112 Permit Amendment Page 10 not expected to remain in stockpiles for more than one to two years. If the stockpile remains more than one growing season, it will be seeded with a fast growing vegetative cover to prevent erosion. All topsoil will be retained on-site to reclaim the backfilled mine cell and other areas disturbed by mining activities. Where required, topsoil will be replaced to a depth of approximately four to six inches. When necessary, stripped topsoil will be stockpiled parallel to potential flood flows to reduce the risk of inhibiting the flow. Throughout the mining and reclamation phases, the amount of topsoil stockpiled will be limited by continuously using it to cap backfilled areas. Revegetation As mining operations are completed, areas for reclamation will be graded and shaped for revegetation. Runoff or excess water from adjacent areas will not be allowed to flow over slopes being graded and seeded. If needed, berms will be constructed to divert excess water and dispose of it in a safe and non-erosive manner. Upland Areas. For backfilled or disturbed upland areas, the reclamation plan includes revegetating with appropriate seed mixes to minimize erosion and reestablish natural terrain. The grass mixture below was selected to be long lasting and regenerating. The ground will be fine graded prior to seeding and fertilizers will be applied according to recommendations from the Soil Conservation Services. Groundwater lake side-slopes below the anticipated water level will not be seeded. Based on the soils in the area, the following upland seed mixture is recommended: Area Cover Application Rater Upland Grass Seed (%%) (#PLS/acre) Vaughn Side Oats Grama 30% 1.35#PLS/ac. Grenville Switchgrass 20% 0.5 #PLS/ac Lovington Blue Grama 20% 0.3 #PLS/ac Barton Western Wheatgrass 30% 2.4#PLS/ac Application rate is for drilling the seed. If seed is to be broadcast, the application rate will be doubled. Upland grass seed will be planted with a drill equipped with depth bands and press wheels. The seeded areas will then be covered with straw mulch at a rate of 2,000 pounds per acre. The straw will be crimped into the soil to control erosion until the grass becomes established. If a significant invasion of noxious weeds occurs after seeding, the weeds will be mowed before they can go to seed. The areas will be mowed periodically for additional control as needed. Mechanical control will be used as a first priority. Chemical methods will only be used if no other alternative produces acceptable results. Wetland Areas. The replacement wetland areas and areas to be used for future wetland banking will be planted and seeded with native wetland plants. A detailed revegetation plan for the Platte Valley Operation DMG 112 Permit Amendment Page 11 wetland areas is available in the Clean Water Act Section 404 permit application for the Wattenberg Lakes site(Permit Number M2001008) submitted to the Army Corps of Engineers. Water— General-Requirement To minimize the effect on the prevailing hydrologic balance, the operator shall: a. comply with all applicable Colorado water laws, b. comply with all applicable Federal and State water quality laws and regulations, c. comply with all Federal and State requirements for dredge and fill, and d. regrade all sediment and siltation structures after mining is completed unless such structures are to be used for wetlands mitigation. Groundwater—Specific Requirements The operation will not affect groundwater quality on or off the site. The operation will comply with State groundwater quality standards. Due to the absence of sources of potential pollutants, groundwater quality monitoring is not required in this operation. Wildlife The proposed reclamation plan does not propose to create wildlife habitat. All activities will be planned considering the safety and protection of wildlife on the property. Some species may be temporarily displaced by the mining activities, but these species are expected to re-establish with no difficulty after the reclamation has been completed. The creation of the lake and wetlands may create additional opportunities for aquatic birds, mammals, and fish. Platte Valley Operation DMG 172 Permit Amendment Page 12 EXHIBIT F Reclamation Plan Map See attached map. • • Platte Valley Operation DMG 112 Permit Amendment Page 13 EXHIBIT G Water Information The Platte Valley Pit is located in Sections 30 and 31, Township 1 North, Range 66 West in Weld County. The site is located north of Brighton, west of Highway 85, and east of the South Platte River. Depletions from the South Platte River as a result of the sand and gravel operation will be due to evaporation and operational losses associated with mining. These depletions can be mitigated without injury to the vested senior rights downstream of the site. The reclamation plan for the site calls for the creation of groundwater lakes, wetland areas, and backfilling of the pits created during the mining of the site. Reclamation of the site will proceed concurrent with the mining operation. A substitute supply plan for the replacement of stream depletions during the mining phase is currently in place with the State Engineer's Office. The length of time for the completion of the project is estimated at 2 years Water Use Water use at the site includes evaporation from exposed groundwater, water retained in material removed from the site, and water for dust control. The exposed groundwater is the result of settling ponds and dewatering trenches constructed to enable dry mining at the site. The maximum exposed surface area during mining is estimated at 6.75 acres. After mining at the site has been completed, the pit will be allowed to fill with groundwater during reclamation of the site. The maximum surface area of the exposed groundwater is estimated at 100 acres. The NOAA Technical Report NWS 33, Evaporation Atlas for the Contiguous 48 States (U.S. Department of Commerce) was used to determine gross evaporation. For this location, the annual evaporation is 42 inches. Precipitation was estimated from the High Plains Regional Climate Center for the Brighton Weather Station. Annual precipitation at the site was assumed to be equal to the Brighton Station, which is 14.55 inches. Effective precipitation was calculated as 70% of the total precipitation. Net evaporation was then computed as the difference between gross evaporation and effective precipitation. The net annual evaporation at the site is 31.81 inches or 2.65 feet. Thus, the resulting net annual evaporative consumptive use during the mining operation is 17.89 acre-feet. Following extraction, the raw material will be processed and hauled off-site for use. The water retained in this material is considered as a consumptive use. The anticipated amount of raw material that will be mined and washed from the site each year is estimated at 1,000,000 tons. Assuming 4 percent moisture content by weight as suggested by the State Engineer's Office, the total annual depletion due to water retained in product is 29.43 acre-feet. In addition, water use at the site will include dust control. From previous experience in mining operations similar to this one, a reasonable estimation of dust control water usage is 2.0 acre-feet per year. Platte Valley Operation DMG 112 Permit Amendment Page 14 The total annual consumptive uses associated with the mining operations are as follows: Evaporation (acre-feet) 17.89 Moisture Retained in Product (acre-feet) 29.43 Dust Control (acre-feet) 2.00 Total (acre-feet) 49.32 The maximum annual evaporation from the site after mining has been completed will be approximately 265 acre-feet. As reclamation progresses, portions of the reclaimed pit will gradually be backfilled, thereby reducing the total amount of exposed surface area. Water Rights Replacement water is currently, and will continue to be provided under Aggregate Industries' South Platte Combined Replacement Plan that has been accepted and approved by the State Engineer's Office. Sources of water include historic consumptive use credits from the Fulton Ditch, water from the City of Westminster, and other water currently available to Aggregate Industries under lease agreements. Under the Combined Replacement Plan, replacements are made to the South Platte River at various locations including the Metro Wastewater Treatment Plant outfall structure located upstream of the property. Transit loss associated with the replacement water sources is assumed to be 0.5% per mile. Sources of water currently available to Aggregate Industries are described as follows: • 0.28 cfs of fully consumable water every day of the year delivered in perpetuity at the confluence of Clear Creek and the South Platte River in Adams County, Colorado. • In addition to the amounts identified in the above paragraph, an additional 0.17 cfs of fully consumable water every day from October 2 until June 30 delivered in perpetuity at the confluence of Clear Creek and the South Platte River in Adams County Colorado. • Water attributable to Aggregate's ownership of Fulton Ditch shares. • A lease with Silver Heights Water and Sanitation District for fully consumable wastewater delivered at the Plum Creek Wastewater Treatment Plant. • Fully consumable water from the Centennial Water and Sanitation District delivered at Little Dry Creek or Plum Creek, from McLellan Reservoir, or from Centennial's Marcy Gulch Wastewater Treatment Plant. To the extent the water is available from the above-identified sources, it will be used to replace out of priority stream depletions for mining and reclamation. Platte Valley Operation DMG 112 Permit Amendment Page 15 Surrounding Water Rights Exhibit G-1 shows the permitted and\or adjudicated water rights within one half mile of the site. Well and water rights tabulations from the State Engineer's Office were used to locate the surrounding wells and water rights as shown in the vicinity map included in Exhibit G-2. Platte Valley Operation DMG 112 Permit Amendment Page 16 Exhibit G] Wells Located within one half mile of Permit Boundary Permit#/Water Right Map ID# Name Owner Address WR#1 Huett Seepage Ditch Dave Dersham N/A 1 11620R R.T.Development Inc. 2008 Ft Worth Nat.B.B Ft Worth,TX 76102 2 13089R Winona E and George S Harley RT 1 Box 168 Brighton,CO 60601 3 26591 Gordon Hurley Brighton,CO 80601 4 38779 Fields Eng.&Fab.Co.Inc. PO Box 887 Brighton,CO 80601 5 103375 Denis B.Clanaban 718 17th ST#1950 Denver,CO 80202 6 19173 Fields Eng.&Fab.Co.Inc. PO Box 887 Brighton,CO 80601 7 31022 Harold F Baumgartner PO Box 144 Brighton,CO 80401 8 103363 Ritchie Bros Auctioneers Inc PO Box 144 Brighton,CO 80601 9 103364 Ritchie Bros Auctioneers Inc PO Box 887 Brighton,CO 80601 10 103365 Ritchie Bros Auctioneers Inc PO Box 144 Brighton,CO 80601 11 103366 Ritchie Bros Auctioneers Inc PO Box 144 Brighton,CO 80601 12 103367 Harold F Baumgartner PO Box 144 Brighton,CO 8060! 13 103372 Harold F Baumgartner PO Box 144 Brighton,CO 80601 14 103377 Harold F Baumgartner PO Box 144 Brighton,CO 8060] 21 103371 Harold F Baumgartner PO Box 144 Brighton,CO 80601 22 103376 Harold F Baumgartner PO Box 144 Brighton,CO 80601 23 5699IF Robert L&Sharon A Baumgartner 1564 Manor Way Brighton,CO 80601 24 103373 Harold F Baumgartner PO Box 144 Brighton,CO 80601 25 49717F Peter Baurer&Carl Eiberger 754 Co Rd 23 3/4 Brighton,CO 80601 26 103368 Peter Baurer&Carl Eiberger 754 Co Rd 23 3/4 Brighton,CO 80601 27 103369 Harold F Baumgartner PO Box 144 Brighton,CO 80601 28 103374 Harold F Baumgartner PO Box 144 Brighton,CO 80601 29 15561 Reed Beauford RI 1 Box 59 Brighton,CO 80601 30 21385 W.T.Spencer Rt I Box 142 Brighton,CO 80601 31 5889 Don Oday Bx 6556 Stkyd S Denver,CO 80202 32 I0286R Steve Brancucci 2520 Cherry Drive Denver,CO 80202 33 18769S Sasaki Farms Brighton,CO 80601 34 47086 Bob L.Moreland 31 S.8th Brighton,CO 80601 35 6292R Fred Debetz Brighton,CO 80601 36 18769R Sasaki Farms Brighton,CO 80601 �� 37 20033F Central Colorado Water Conservancy District 2308 29th St.2 Greeley,CO 80631 38 20034F Central Colorado Water Conservancy District 2308 29th St.2 Greeley,CO 80631 39 206557 Godby Carroll Don&Ivan Collins 37632 WCR 37 Eaton,CO 80615 40 13409F Geo.Mancini Feedlots Inc. PO Box 398 Brighton,CO 80601 41 13410F C&M Concrete Companies PO Box 490 Niwot,CO 80544 42 13410FR C&M Concrete Companies PO Box 315 Boulder,CO 80306 43 242650 Consolidated Mutual Water Co. Box 150068 Lakewood,CO 80215 44 242651 Consolidated Mutual Water Co. Box 150068 Lakewood,CO 80215 45 242652 Consolidated Mutual Water Co. Box 150068 Lakewood,CO 80215 46 242653 Consolidated Mutual Water Co. Box 150068 Lakewood,CO 80215 47 102858 Steve Brancucci 8120 E. 104th Ave Henderson,CO 80640 48 I24369A P.Hrapski Brighton,CO 80601 49 19806F Central Colorado Water Conservancy District 2308 29th St.2 Greeley,CO 80631 50 19807F Central Colorado Water Conservancy District 2308 29th St.2 Greeley,CO 80631 51 20032F Central Colorado Water Conservancy District 2308 29th St.2 Greeley,CO 80631 52 1997R Steve Brancucci 8120 E.104th Ave Henderson,CO 80640 53 1998R Steve Brancucci 8120 E. 104th Ave Henderson,CO 80640 54 34889 Jack Luft Box 122 Brighton,CO 80601 55 116824 Foster Propertyies Inc. 12739 West County Road 4 Brighton,CO 80601 56 168178 Cononwood Water Ski Club Ltd 3382 Vivian Dr Wheatridge,CO 80033 57 114229 RE.Jonnson Brighton,CO 80601 58 89177VE Ralph Brenning 1212 Grant Longmont,CO 80501 59 6293RR C&M Sand Company PO Box 315 Boulder,CO 80306 60 34817F Cowan Concrete Products • PO Box 5183 Denver,CO 80217 61 34816F Cowan Concrete Products PO Box 5183 Denver,CO 80217 62 I3699F Frank Damiana Ft Lupton,CO 80621 63 13699R Frank Damiana Ft Lupton,CO 80621 64 118183 T.Davis Ft Lupton,CO 80621 65 176979 US Geologic Survey Denver Federal Ctr.Box 25046 M/S 415 Denver,CO 80225 66 2819F Frank Yokooj Rt 1 Box 164 Brighton,CO 80601 67 43443F J.G. Cabrera 5310 S Nelson St Littleton,CO 80127 68 163521 Charles&Barbara Patterson 12563 WCR 6 Brighton,CO 80601 69 I 9805F Central Colorado Water Conservancy District 2308 29th St.2 Greeley,CO 80631 - i 'total R67W R66W ,, Weil . I' Mobile Horn r �� - - 'PBfkIil?:�j3@h61CIICC - Y1(ELD COUOY R t 6 1 3(6001 z \ 66r ° . . •• Well _____ L:. 6Mrr��,- } slS26 Water 49:7 i 4450 Olt i s • s e 41,4 Tank "* ss *40Rad10 *34 I : • 1 t: 4•' 7010-6{5 Wattenberg' ' t i w 1 L� rit � i { 1 7i c9- - 3 I r 3 5e 1 4a4p X51 ____ f t ° _ �- *47,48 49 m 69� 50 i Si' 1 l / q ii si �59 i[I X56 - n r .,,, , me . •••4 ''574. 58 49561 (i. lit f 23•..4 •, a . t 1;3 De en r cih r `�_ tF 8 'r' 44945 �a9a6t Ifis )j1 � 1' 103 t ,, L iI r LEGEND: 2.€ • WELL LOCATIONS e * APPROXIMATE WELL LOCATIONS g0 1500 750 0 1500 t e "". SCALE IN FEET rra Dole 03/12/03.18 Applegate Job No 02-188 AGGREGATE INDUSTRIES Group,°. > Drawn: PISA Dawn PLATTE VALLEY PIT "°for�6 ""v° "6W� 1499 Weis 12Ca Ave.9e 200 5441 Boma 1k.3e MO a tYRc�<a: Dr Denver.co BO234 2726 Loveland CO10534 00 Flit AFNAL WELL LOCATIONS (303)452-6611 (970)461 NM _ Fu:(303)452-2759 Fa(970)6111177 p l:in6 pkpnepogmi Websee:Aplmepe(duyam z EXHIBIT H Wildlife Information The site is located along the South Platte River and has a low land riparian ecosystem within the eastern portion of the site. The main habitat area would be adjacent to the river and among the cottonwood trees. The proposed mining area, however, mainly includes non-irrigated pastureland. Since this area was previously cultivated, there are no intact stands of native vegetation. When this site was originally permitted, the Colorado Division of Wildlife (DOW) in a Mined Land Wildlife Statement/Evaluation dated November 9, 1989 (see attached) listed the following species as being present on the site: deer, coyote, fox, prairie dog, raccoon, opossum, skunk, rabbits, beaver, muskrat, weasel, pheasant, dove, magpie, raptors, waterfowl, shore birds, and numerous small rodent and seasonal songbirds. In order to evaluate potential wildlife habitat impacts from the proposed amendment operation, updated information was gathered from the Natural Diversity Information Source (NDIS) to identify any new concerns. The NDIS combines plant and animal abundance data from the Colorado Division of Wildlife (DOW) and other Colorado natural resource agencies to be used for land-use analyses and decisions. There are no known threatened/endangered species within the proposed project boundary. The only exception could be wintering or year-round use by roosting/feeding bald eagles in the mature stand of cottonwood trees between the river and the site. These stands would be considered the most critical habitat. Mining operations during the winter are at a low activity level. This should minimize impact to wintering eagles. However, there are no known nest sites within the proposed project boundary. Wildlife known to be common or abundant in Weld County, and which might occur within or near the proposed project site, include a variety of amphibians, reptiles, birds, and mammals. Frogs, toads, salamanders, lizards, and snakes would all be expected to inhabit areas similar to those found within or near the proposed site. Common species could include the bullfrog, greatplains toad, northern leopard frog, plains spadefoot, tiger salamander, and western chorus frog. Many birds may use habitats similar to those found at the proposed Platte Valley Operation site, either year-round, seasonally for nesting, or temporarily for roosting during migration. Some of the common or abundant species could include robins, starlings, grackles, magpies, blackbirds, cowbirds, orioles, finches, sparrows, swallows, wrens, yellowthroats, larks, kingbirds, and doves. Because of the South Platte River being within the site boundary, shore birds and waterfowl such as killdeer, herons, gulls, pelicans, ducks, Canadian geese, and grebes might also be present. It could be expected that most mammals common or abundant in Weld County would be found near or within the proposed Platte Valley Operation site. Smaller mammals that might be found at the proposed project site might include bats, mice, voles, gophers, cottontail rabbits, squirrels, Platte Valley Operation DMG 112 Permit Amendment Page 17 muskrats, raccoons, and skunks. Some of the larger mammals could include both mule and ' white tailed deer, coyote, and fox. In order to minimize the effects of the mining operation on the wildlife the following measures will be taken: 1. Trees and the riparian habitat along the river will not be disturbed. 2. This mining area is relatively small and of an irregular shape. There are good opportunities for wetland habitat to be created. Platte Valley Operation DMG 112 Permit Amendment Page 18 MINED LAND WILDLIFE STATEMENT/EVALUATION (Revised) for limited impact and select regular mine applications le following information pertaining to wildlife is provided for use by Mined Land Reclamation Board in their consideration of a mining permit for: Platte Valley Pit-Sand & Gravel-SE}NW}, & SW}SW}, Sec 30, T1N, R66W, & parts of the NW}NW}, Name/Type and Location of Mine (Legal) Sec 31, TIN, R66W, Weld County Wildlife Species list: Deer, coyote, fax, prairie dog, raccoon, opposum, skunk, rabbits, beaver, muskrat, weasel, pheasant, dove, magpie, raptors, waterfowl, shore birds, & numerous small rodent & seasonal songbirds. Endangered/critical species/impacted: No known threatened or endangered species. Critical habitats/vegetative communities impacted: NA RECEIVED NOV 13 igag Assessment of impact: Area is bottomland that appears to have had varied uses. Vegetation is rather weedy and a mixture of permanent grasses. Mine Reclamation recommendations (include key species/habitats for which restoration is designed) . Although the total reclamation is lacking in the application supplied this office, it is assumed that the excavation will result in ponds of water at varying depths. It is recommended that the banks be sloped at a minimum of 3:1. Also, the shoreline should be left as irregular as possible and use overburden to create islands within the ponds. Trees and shrubs such as cottonwood for trees and ribes or skunkbush for shrubs should be used in the revegetation plan along with grasses as recommended by the SCS for lowland areas such as this. Prepared By: 41.1i)o ler/ Date: //elf Submitted By: Date: This statement is void if not processed within 1 year. This analysis does not constitute approval of application. EXHIBIT J Vegetation Information Vegetation information was compiled from a 1989 vegetation survey performed by the Soil Conservation Service (see attached), and recent site visits. Please refer to the attached letter for a vegetation survey of the area originally permitted in 1989. It is believed that the vegetation has changed very little in this area since the survey. Platte Valley Operation DMG 112 Permit Amendment Page 21 EXHIBIT J United States Soil 60 S. 27th Avenue Department of Conservation Brighton, CO 80601 Agriculture Service Telephone: 659-7004 August 23, 1989 Mr . Ronald J . Allingham Tuttle Applegate , Inc . RFC4 11990 Grant Street, Suite 410 4/p /k Denver, CO 80233 w .Dio in RE: Information for Mine Request Dear Mr. Allingham: The information you requested on the land in part of the E 1/2, W 1/2, Section 30, and part of the NE 1/4, NW 1/4, Section 31 , Range 66 West, 6 P.M. (See attached map) . SOILS INFORMATION: Soils for the area requested , according to the Soil Survey of Weld County, Southern Part, are mapped as follows: 3 — Aquolls and Aquents, gravelly substratum 10 — Bankard sandy loam, 0 to 3 percent slopes A copy of the detailed soil description is attached. For more information on soils see the soil survey. A copy can be obtained from this office . VEGETATIVE INFORMATION: It appears that this area had been • cultivated and irrigated several years ago and the native grasses destroyed . Some introduced grasses and legumes had been established at one time and a remnant of those still exist. The grasses consisted of Tall Wheatgrass', Intermediate Wheatgrass, Smooth Bromegrass and Crested Wheatgrass. The legumes consisted of Alfalfa and Sweetclover. Other grasses inventoried on the property were Cheatgrass , Saltgrass, Western Wheatgrass and Sand Drop Seed. Grass—like plants seen on the property were Sedges and Cattails . However, this would have made up less than one percent of the vegetation. This area is being grazed by cattle and it appeared the cattle had been in the field for some time . Other grasses- may have been present but had been grazed too low to identify. The major part or percentage of the vegetation , at the time of inventory, was Forbs . These broadleaf plants consisted mostly of Musk Thistle, Canada Thistle, Bull Thistle , Murdock , Bindweed , Lambsquarters, Sunflower, Kochia, Goathead and Prickly Lettuce . There were a few trees on the property and they were Cottonwood, Willow and Russian Olive. United States Soil 60 S. 27th Avenue Department of Conservation Brighton, CO 80601 Agriculture Service Telephone: 659-7004 August 23, 1989 • RECLAMATION PLAN: 1) Slopes: During mining operations, cut or fill slopes should not exceed 3: 1 slopes (3 horizontal to 1 vertical ) . Cut slopes should be scarified a minimum of three inches deep prior to placement of any soil material . 2) Top Soil : During mining operations, topsoil should be stockpiled to be used in reclamation of the area _ Stockpiled topsoil should be protected from wind erosion . After mining operations are completed, the area should be shaped and graded with no slopes exceeding 3: 1 above water level and for at least ten feet below water level . Below ten feet, slopes could be 2: 1 . After scarifying , topsoil should be spread six inches to one foot thick over any disturbed area above water level , except where buildings may be built. A seedbed should be prepared before the soil is seeded to adapted vegetation . A~� 3) Cover Crop: After topsoil has been spread over disturbed areas and a seedbed has been prepared the reclaimed area should be seeded to a cover crop . Recommendations are to use a hybrid forage sorghum. This seeding should be done in May or June at the rate of 10 pounds per acre of Pure Live Seed (PLS) in 7" to 12" row spacings . Grass can be seeded directly into the forage sorghum. If this is not done , then after seeding, the area should be mulched. 4) Mulching: After seeding is completed, approximately 4000 pounds per acre of straw or hay mulch should be applied. This mulch should be anchored. One method is to use a straw crimper and "crimp" the mulch into the soil . This should help to control erosion until the grass becomes established . See attached SCS Standards and Specifications for Mulching. 5) Fertilizer: A soil test should be taken to determine fertilizer recommendations before seeding grass . In the --- absence of a fertilizer test, then forty pounds of nitrogen and forty pounds of phosphorous per acre should be applied just prior or during seeding the area to grass. The fertilizer should be mixed into the soil . Page 3 6) Grass Seeding: Grass seeding should be done between November 1 and May 1 . It ' s best to seed in the fall . Seeding should not be done on frozen soil . The seedbed should be firm and clean of weeds . Seeding should be made into a cover crop, see item 3 above . When a cover crop is not used , after the land is seeded to grass , it should be covered with a mulch, see item 4 above . The following seeding recommendation can be changed in consultation with SCS and the Mine Land Reclamation . The following is a seeding recommendation. Grasses % of Mix Seeding Rate* Lovington Bluegrama 20 0.6 Vaughn Sideoats grama 30 2.7 Arriba Western wheatgrass 50 8.0 * = Pound per acre of Pure Live Seed Stockpiled topsoil_ should be seeding to Lincoln Smooth Brome at the rate of 13 pounds per acre of Pure Live Seed, or Fairway wheatgrass at the rate of 6 pounds per acre Pure Live Seed. This rate is for a grass seed drill . Grass should be planted using a grass seed drill with agitators in the drill box , double disc with depth bands and packer wheels. Ninety—five percent of the seed should be planted at a depth of 1/2 inch to 2/3 inch. 7) Weed Control : Weed control is necessary to insure a successful seeding. Weeds can be controlled by mowing or spraying chemicals. Mow weeds when they are 6 to 8 inches high , leaving a 3 to 4 inch stubble. Do not clip off the • top of the newly seeded grass . This should be done for the first and possibly the second growing season. After the first growing season and the seeded plants have reached the four leaf stage , then appropriate herbicides may be used to control weeds. Any chemicals used will need to be used according to manufacturer' s labeling. 8) Grazing : The area should be protected and grazing should be prohibited . 9) Trees and Shrubs : Some trees and shrubs that could be included in the revegetation of the area, above water level , could include the following: evergreen conifer trees could include Eastern Red Cedar, Rocky Mountain Juniper, Ponderosa Pine, and Scotch Pine ; deciduous trees that could be included are Russian Olive , Siberian Elm, Green Ash, Hackberry , and Cottonwood; shrubs that are adapted include - Antelope Bitterbrush, Fourwing Saltbush, Hansen Rose, Rabbit Brush , Siberian Peabush, Tatarian Honeysuckle , Skunkbush Sumac , and Lilac . r Page 4 10) The South Platte River runs along the west side of this property . Some of the property may be west of the south Platte Riv-er and if so , the river would run along the east side of that land. Some river bank erosion has occurred. Streambank protection may be needed and it should start at a stabilized or controlled point. Streambank protection should start at a depth well below the anticipated lowest depth of river bottom scouring. A berm between the river and pits where gravel material is removed should be built and it should be wide and high enough to prevent the bank from cutting by overtopping during a flood . Vegetative protection should be considered on the berm and upper parts of the river bank . The channel capacity of the river should also be maintained. A 404 permit will need to be obtained from the Corps of Army Engineers for any river bank work . If we can be of any additional assistance , please feel free to contact this office . Sin rely, . 7/. ,...--, O ad( Roy. Bell District Conservationist attachments: Mulching Standards and Specifications Soil Descriptions for: 3 — Aquolls and Aquents, gravelly substratum 10 — Bankard sandy loam, 0 to 3 percent slopes EXHIBIT K Climate Climate information was available for the Brighton weather station from the Colorado Climate Center(sponsored by Colorado State University). The climate data collected from 1973 through 1997 indicates the total annual precipitation at the site to be approximately 14.55 inches per year and annual mean temperature to be approximately 46 degrees Fahrenheit. Monthly average temperature and precipitation data for the 25-year period of record are provided in the following table. Average Monthly Average Monthly Temperature (°F) Precipitation Maximum Minimum (inches) T January 41.9 13.6 0.48 February 47.3 18.6 0.41 March 55.4 25.7 1.26 April 63.5 33.3 1.56 May 72.4 42.9 2.56 June 83.5 51.8 1.84 July 88.6 56.5 1.55 August 86.2 54.7 1.53 September 78.6 46.0 1.01 October 67.7 34.3 0.87 November 51.1 22.8 0.93 December 43.8 15.8 0.55 _ Mean/Total 60.0 32.0 14.55 Platte Valley Operation DMG 112 Permit Amendment Page 22 EXHIBIT L Reclamation Cost Estimate In order to calculate maximum potential reclamation liability to the State, we have selected a point in time where the mining disturbance could be at its maximum. This point occurs near the end of the mining operation. The maximum mining disturbance illustrated in the table occurs during the mining of Cell 4, prior to mining in Cell 5. Overburden has been stripped in anticipation of future mining and backfilled areas requiring grading and seeding are present. The mining disturbance will be at its greatest when the northern portion of Cell 4 has been mined out and the mining face is nearing the southern portion of the cell. At this time, Cell 1 will be backfilled, the exterior walls of Cell 2 will be graded and seeded, and Cell 3 side slopes will be graded and seeded. Portions of Cells 2, 3, or 4 may also be in use as sedimentation basins, but, in general, reclamation of Cells 2 and 3 as groundwater lakes will be complete. Although reclamation along the exterior walls of Cell 4 will be in progress, the mining face will at its greatest length. Please refer to the revised Exhibit D, Mining Plan, for a listing of disturbed areas that total 52.5 acres. This estimate will follow the same order as the listing in Exhibit D. Unit Cost Cost Aspect Reclamation Operation Quantity Units ($) _($) A. Stripped Overburden and Topsoil in Anticipation of Mining 1. Replace overburden, 6"x 30 acres 24,200 CY 1.25 30,250 2. Replace topsoil, 6" x 30 acres 24,200 CY 1.25 30,250 3. Seed and mulch 30 Ac 800 24,000 4. Reseed 20% 6 Ac 800 4,800 B. Active Mining Face, 1,000 feet 1. Backfill slope to 3H:1 V 45,000 CY 1.25 56,250 2. Replace topsoil, 6"x 16 ft x 1,000 ft 300 CY 1.25 375 3. Seed and mulch 0.4 Ac 800 320 4. Reseed 20% 0.1 Ac 800 80 C. Exterior Cell Wall being Backfilled, 1,000 feet 1. Backfill slope to 3H:1V 45,000 CY 1.25 56,250 2. Replace topsoil, 6"x 16 ft x 1,000 ft 300 CY 1.25 375 3. Seed and mulch 2.0 Ac 800 1,600 4. Reseed 20% 0.4 Ac 800 320 D. Top of Slope and Side Slope Seeding 1. Seed and mulch 3.5 Ac 800 2,800 2. Reseed 20% 0.7 Ac 800 560 Platte Valley Operation DMG 112 Permit Amendment Page 23 r. Reclamation Table Continued. Unit Cost Cost As.ect Reclamation O.eration •uanti Units $ $ E. Roads and Conveyors 1. Demolition and removal of Bonded under Permit M2001008 Conveyor Bridge 2. Scarify compacted ground 1.0 Ac 25 25 3. Replace topsoil, 6"x 1.0 acres 800 CY 1.25 1,000 4. Seed and mulch 1.0 Ac 800 800 5. Reseed 20% 0.2 Ac 800 160 F. Plant Site, Office, and Scale House 1. Scarify compacted ground 18 Ac 25 450 2. Replace topsoil, 6"x 18 acres 14,520 CY 1.25 18,150 3. Seed and mulch 18 Ac 800 14,400 4. Reseed 20% 3.6 Ac 800 2,880 Total Disturbance Costs 246,095 Contractor Mobilization/Demobilization (8%) 0.08 19,688 Overhead (18.5%) 0.185 45,528 Administration (5% 0.05 12,305 Total Pro•osed Financial Warran 323,616 . Disturbed Acreage 52.5 Financial Warrant .er Acre 6,164 J Platte Valley Operation DMG 112 Permit Amendment Page 24 EXHIBIT M Other Permits and Licenses • Weld County Use By Special Review Permit • APEN, Colorado Depai huent of Public Health and Environment Air Pollution Emission Notification Permit. • CDPS, Colorado Department of Public Health and Environment Colorado Discharge Permit System Permit • Well Permit and Substitute Supply Plan, Colorado State Engineer's Office Platte Valley Operation DMG 112 Permit Amendment Page 25 EXHIBIT S ---- Permanent Man-Made Structures within 200 Feet of the Affected Land 1. Power Lines/Poles 2. Phone Lines/Poles 3. Oil and Gas Lines 4. CCWCD groundwater wells and conveyance structures 5. Fences/Structures 6. County Roads 7. State Highway 85 8. Unimproved roads 9. Industrial buildings/structures Aggregate Industries believes that the mining operation, as proposed, will not adversely affect any of the permanent, man-made structures located within 200 feet of the affected area. However, the applicant still anticipates providing evidence of agreements for compensation with the appropriate structure owners or engineering evaluations that adequately demonstrate that the proposed mining and reclamation operations will not result in damage to the structures. Until the agreements or engineering evaluations are provided, mining will remain 200 feet from significant, valuable, or permanent man-made structures not controlled by the applicant. Platte Valley Operation DUG 112 Permit Amendment Page 31 NOTICE This site is the location of a construction materials operation. Aggregate Industries-WCR, Inc., whose address and phone number is 1707 Cole Boulevard, Suite 100, Golden, Colorado 80401; Phone No.: (303) 985-1070, has applied for a Reclamation Permit Amendment with the Colorado Mined Land Reclamation Board. Anyone wishing to comment on the application may view the application at the office of the Weld County Clerk to the Board, 915 10th Street, Greeley, Colorado, and should send comments prior to the end of the public comment period to the Division of Minerals and Geology, 1313 Sherman Street, Room 215, Denver, Colorado 80203. Certification: I, Connie N. Davis of Aggregate Industries-WCR, Inc., hereby certify that I posted a sign containing the above notice for the proposed permit area known as the Platte Valley Operation, on July 31, 2003. /4 Signature Date v Hello