The URL can be used to link to this page

Browse Search

Home My WebLink About20080384.tiff • • SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW (USR) APPLICATION • FOR PLANNING DEPARTMENT USE DATE RECEIVED: RECEIPT#/AMOUNT# /$ CASE#ASSIGNED: APPLICATION RECEIVED BY PLANNER ASSIGNED: Parcel Number: 120929200049 and 120929200048 and 120929100050 Legal Description: Part of the North 1/2 Section 29, Township 3 N, Range 67 W. Flood Plain:Portions of the property are located within the 100-year Flood Plain of the St. Vrain River, noted on Community Panel#0802660855C, dated September 28, 1982. Zone District:Agricultural (A) Total Acreage: 136.29 Acreage for USR: 136.29 Overlay District None Geological Hazard:None FEE OWNER(S) OF THE PROPERTY: Name: Aurora Dairy Corporation Phone: (720) 569-6296 Address: 1401 Walnut Suite 500 Boulder, CO 80302 APPLICANT: Name: Aurora Dairy Corporation Phone: (720) 569-6296 Address: 1401 Walnut Suite 500 Boulder, CO 80302 • AUTHORIZED AGENT (See Below:Authorization must accompany applications signed by Authorized Agent) Name: Dusty McCormick, AGPROfessionals, LLC Address: 4350 Highway 66, Longmont, CO 80504 Phone: (970) 535-9318 Email: dmccormick@agpros.com PROPOSED USE: A Site Specific Development Plan and Special Review Permit for an Agricultural Service Establishment primarily engaged in performing agricultural, animal husbandry, or horticultural services on a fee or contract basis including Livestock Confinement Operations (a dairy operation for a total of 3,000 head) in the A (Agricultural)Zone District. I(We)hereby depose and state under penalties of perjury that all statements,proposals,and/or plans submitted with or contained within the application are true and correct to the best of my(our)knowledge. Signatures of all fee owners of property must sign this application. If an Authorized Agent signs, a letter of authorization from all fee owners must be included with the application. If a corporation is the fee owner,notarized evidence must be included indicating that the signatory has the legal authority to sign for the corporation. -O7 • Sign- - ner or Authorize. Ag- t Date ody r4I(y ‘,/,,,,///067/0^On —C 7. • EXHIBIT 1v 2008-0384 • A PR G O • ■■ COMPLETE LAND & RESOURCE SOLUTIONS March 8, 2007 To Whom It May Concern: Aurora Dairy Corporation has contracted with AGPROfessionals, LLC to process work related to any and all land use processes. AGPROfessionals, LLC is authorized to represent and request the release of any and all records necessary on behalf of Aurora Dairy Corporation. Sincerely, • 'C.sen. 3A11 7 Jay il.o Qperating Officer Date Auro ; I ay Corporation • ENGINEERING, SURVEYING, PLANNING & CONSULTING 4350 Highway 66[ Longmont,CO 80504 970.535.9318/office L 303.485.7838/metro[ 970.535.9854/fax[ www.agpros.com • u ro ©RGANIC DAlgy La c April 9, 2007 • G To Whom It May Concern: Jay Wilson is our Sr. Vice President, Project Engineering and is authorized to represent and sign for Aurora Dairy Corporation, d/b/a Aurora Organic Dairy in matters relating to our rNi Special Use Permit and Building Projects in Weld County. cc Sincerely, Do Gary . Sebek • O Executive Vice President and CFO OE J STATE OF COLORADO cc ) ss. COUNTY OF Boulder 0 The foregoing instrument was acknowledged before me this 9'" day of April, 2007, by Gary R. Sebek, Executive VP and CFO of Aurora Dairy Corporation, a Delaware corporation. witness my fr ,L and officio! c :I. Gl '.9_.�.lv M f „Fn., }tt` (SEA § s a a a t Notary Public My Commission Expires: L//(9/2O/O rag.f e' .^ 2 C U z C •p O L I • • • CONSENT OF DIRECTORS OF AURORA DAIRY CORPORATION Pursuant to § 7-108-202 of the Colorado Business Corporation Act, as amended, the undersigned, being all of the directors of Aurora Dairy Corporation, a Colorado corporation (the "Corporation"),acting without notice or a meeting,hereby waive notice and the holding of such meeting and consent to, adopt and vote in favor of the following resolutions: ELECTION OF RESOLVED, that Gary Sebek be and he hereby is elected to OFFICER serve as the chief financial officer of the Corporation until his successor shall be elected and qualified. • RESOLVED, that Gary Sebek as the Chief Financial Officer of the Corporation or Marcus B.Peperzak as the CEO,be and they hereby are either one of them authorized and empowered to execute and deliver on behalf of the Corporation the Lease and all other documents or instruments as they shall determine in their discretion to be necessary or desirable to consummate the transaction as set forth in the Lease and they are further authorized and empowered to bind the Corporation to the Lease. RATIFICATION OF RESOLVED, that all actions taken by the officers of the PAST ACTIONS Corporation from the date of incorporation through the date hereof as reflected in the books and records of the Corporation be and they hereby are approved, ratified and confirmed. DATED effective as of the I t day of April, 2006. M cus B. Peperzak Tim R. Palmer • a- Ba P" Mark A. Retzloff AKS W ADCGENERALADCDIRCON(LEASE)-040106.DOC • • DATED effective as of the day of April, 2006. Marcus B. Peperzak Tim R. Palmer Sam Bartlett M�. R� • zloff N KKSWIADC\GENERALADCDIRCON(LEASE)-040306.DOC • • • SITE SPECIFIC DEVELOPMENT PLAN AND USE BY SPECIAL REVIEW(USR)QUESTIONNAIRE The following questions are to be answered and submitted as part of the USR application. If a question does not pertain to your use, please respond with "not applicable", with an explanation as to why the question is not applicable. 1. Explain, in detail, the proposed use of the property. The current use of this property is a Dairy, located on three contiguous parcels totaling approximately 136.29 acres. Activities will include milking dairy cows, raising replacement stock, farming, and employee housing. Supporting infrastructure includes a milking parlor, animal shelters, buildings and corrals for livestock husbandry, equipment storage, maintenance facilities, employee housing, and waste management control structures. This proposal is to reduce the existing 4,000 animal dairy to 3,000 total animals. This will include removing three(3)milking parlors, associated pens, animal shelters, a feed mill, office, and associated waste/storm water ponds. We have relocated one office building, and are remodeling one milking parlor. The pens surrounding the three(3)demolished parlors will be re-graded and reclaimed back to grass pasture. Details of the changes are on the attached site plan maps. The facility will be operated under applicable local, state and federal regulations, as well as standard and traditional Dairy Farm operating and best management practices. 2. Explain how this proposal is consistent with the intent of the Weld County Code, Chapter 22 (Comprehensive Plan). • Section 22-2-60 A.Goal.1 states"Conserve agricultural land for agricultural purposes which foster the economic health and continuance of agriculture". 1. A.Policy 1.1 states"Agricultural zoning will be established and maintained and promote the County's agricultural industry. Agricultural zoning is intended to provide areas for agricultural activities and other uses interdependent upon agriculture." The proposed use is consistent with the Weld County Comprehensive plan through the preservation, enhancement and growth of agriculture. The facility supports commercial and industrial uses directly related to, or dependent upon, agriculture. A portion of the USR boundary is located within the 100 yr. flood plain. This portion has been engineered to comply with the Floodplain Development standards of Weld County and the Federal Emergency Management Agency. The proposed site is not located within a geologic hazard zone or airport overlay zone. The property use is necessary in Weld County to preserve the agricultural economic base historically attributed to the area. Typically, dairy operations contribute 2.5 times their gross sales into the local economy. The proposed request is consistent with the Weld County Comprehensive Plans support of agricultural activities. 3. Explain how this proposal is consistent with the intent of the Weld County Code, Chapter 23 (Zoning)and the zone district in which it is located. This proposal meets the intent of the agricultural zone district where the site is located. A livestock confinement operation exceeding four(4)animal units is permitted in the A(Agricultural) zone district as a Use-by-Special Review. This is an existing facility and currently there are • similar uses in the area. Public health, safety and welfare are protected through adherence to applicable county, state and federal regulations and requirements. • • • 4. What types of uses surround the site? Explain how the proposed use is consistent and compatible with surrounding land uses. Agricultural uses surround this site. Adjacent land uses are farming, rural residential, cattle production, as well as a milk processing facility, on a parcel of land adjacent to this dairy. This proposal is compatible with the surrounding agricultural uses and the Weld County Comprehensive Plan. 5. Describe, in detail, the following: a. How many people will use this site? At full build-out approximately sixty(60)employees, the owners and owners' family, sales representatives and supply delivery people. b. How many employees are proposed to be employed at this site? At full build-out there will be approximately sixty(60)employees, 10 corporate employees working normal business hours and 50 dairy farm employees working 24 hours a day over 3 shifts. c. What are the hours of operation? The facility will operate 24 hours per day. Equipment operations, trucks, farming activities and maintenance activities, other than emergencies, will occur primarily during . daylight hours. d. What type and how many structures will be erected (built)on this site? Milking Parlor; Offices; Animal Care Buildings, such as Hospital Barns, Special Needs Barns, Calving Barns, and Animal Shelters; Corrals; Commodity Sheds; Agricultural Equipment Storage Buildings; Maintenance Buildings; Utility Buildings; Employee Housing; Storm water/Process Wastewater Containment Structures and any other accessory structures needed to operate the dairy under the best management practices. Please refer to the site plan maps for detailed drawings of the site and structure locations. e. What type and how many animals, if any, will be on this site? This facility was originally built as a 4,000 head dairy on approximately 140-acres, allowing for 4,000 head of cattle. The applicant is decreasing the numbers to 3,000. This includes milk cows, dry cows, springers, bulls, heifers, and calves. • • f. What kind (type, size, weight)of vehicles will access this site and how often? Typical vehicles accessing this site include feed and hay delivery trucks, semi- tractor/trailer, employee and owner vehicles, animal product vendors, and ag-related equipment. Operating equipment includes typical farming equipment, tractors, loaders and attachments. The following numbers are anticipated upon full build-out of the site. Semi-Tractor Milk Trailer 14-21/wk Semi-Tractor Commodity Trailer 14/wk Commodity Farm Trucks 5/wk, seasonal(hay and silage) Hay Trucks, Semi-Tractors daily during hay season Silage—daily during silage cutting season Rendering Truck—when needed Employees—Daily- Most employees live on site Semi-Tractor, Livestock Trailer- 1/wk g. Who will provide fire protection to the site? The site is located in the Mountain View Fire District. h. What is the water source on the property? (Both domestic and irrigation). Central Weld County Water District provides water for the dairy, office and employee housing. • Irrigation water rights are 4 shares of the Sandborn Reservoir and Ditch Company and will be used as historically operated. What is the sewage disposal system on the property? (Existing and proposed). There are currently septic systems in place for existing buildings, as evidenced by the permits accompanying this application. j. If storage or warehousing is proposed, what type of items will be stored? Storage and warehousing are not proposed as the primary use of this site. Feed, livestock bedding, manure, equipment parts and supplies typical of farming activities will be stored on site. 6. Explain the proposed landscaping for the site. The landscaping shall be separately submitted as a landscape plan map as part of the application submittal. There will be no additional landscaping/screening. The irrigated pastures will surround the milking facility and create a natural buffer. 7. Explain any proposed reclamation procedures when termination of the Use by Special Review activity occurs. Reclamation procedures include compliance with applicable state regulations to manage solid manure and stormwater runoff until all relative material is adequately removed. Should the facility be permanently discontinued for use as a dairy, it would be marketed under applicable county • planning and zoning regulations to its greatest and best use. • 8. Explain how the storm water drainage will be handled on the site. Storm water drainage will be managed with one solid separator, two settling basins and one pond. The ponds will be maintained and operated in accordance with the Comprehensive Nutrient Management Plan. Specific details regarding storm water management are outlined in the Comprehensive Nutrient Management Plan. 9. Explain how long it will take to construct this site and when construction and landscaping is scheduled to begin. This site is an existing facility. Construction is underway to remove three parlors, a feed mill, office, and scale house. Also, several thousand feet of pens will be removed and reclaimed back into grass pasture. This will decrease the dairy's numbers from 4,000 animals to 3000. Construction will take approximately 10 months for completion, unless delayed by market and weather conditions. 10. Explain where storage and/or stockpile of wastes will occur on this site. The manure produced at the facility will be removed by Al Organics or provided to local farmers. Storm water and process wastewater will be stored in wastewater retention structures, which are designed to meet all required regulations. No hazardous material storage is proposed for this site. Stormwater and wastewater will be periodically land applied at agronomic rates. Details of the manure management system are outlined in the Nutrient Management Plan. Debris and refuse will be collected and removed by a local trash service, such as Waste Management or BFI. • • it brele 4 ' Aurora Organic Daisy • Management Plan For Nuisance Control For Aurora Organic Dairy 1401 Walnut Suit 500 Boulder, CO 80302 • Developed in accordance with Generally Accepted Agricultural Best Management Practices Prepared By AGPROfessionals, LLC 4350 Highway 66 Longmont, CO 80504 May 2007 • Aurora Organic Dairy • • AGPROfessionals,LLC • Introduction This supplemental Management Plan for Nuisance Control has been developed and implemented to identify methods that Aurora Organic Dairy, will use to minimize the inherent conditions that exist in confinement feeding operations. This supplement outlines management practices generally acceptable and proven effective at minimizing nuisance conditions. Neither nuisance management nor this supplemental plan is required by Colorado State statute or specifically outlined in the Colorado Confined Animal Feeding Operations Control Regulations. This is a proactive measure to assist integration into local communities. Aurora Organic Dairy will use these management and control practices, to their best and practical extent. Legal Owner, Contacts and Authorized Persons Correspondence and Contacts should be made to: Aurora Organic Dairy 1401 Walnut Suite 500 Boulder, CO 80302 The individual(s) at this facility who is (are) responsible for developing the implementation; • maintenance and revision of this supplemental plan are listed below. Juan Velez Director of Farm Operations (Name) (Title) (Name) (Title) Legal Description The confined animal feeding facility described in this NMP is located at: A parcel of land described as part of the North 1/2 of Section 29, Township 3N, Range 67W of the 6th P.M. • 2 Aurora Organic Dairy • • AGPROfessionals,LLC • Air Quality Air quality at and around confined animal feeding operations are affected primarily from the relationship of soil/manure and available moisture. The two primary air quality concerns at dairies are dust and odor. However, the management practices for dust or odor control are not inherently compatible. Wet pens and manure produce odor. Dry pens are dusty. The two paragraphs below outline the best management practices for the control of dust and odors that Aurora Organic Dairy will use. The manager shall closely observe pen conditions and attempt to achieve a balance between proper dust and odor control. Dust Dust from pen surfaces is usually controlled by intensive management of the pen surface by routine cleaning and harrowing of the pen surface. The purpose of intensive surface management is twofold; to keep cattle clean and to reduce pest habitat. The best management systems for dust control involve moisture management. Management methods Aurora Organic Dairy shall use to control dust are: 1. Pen density Moisture will be managed by varying stocking rates and pen densities. The animal's wet manure and urine keep the surface moist and control dust emissions. Stocking rates in • new portions of the facility will be managed to minimize dust. 2. Regular manure removal Aurora Organic Dairy will continue to conduct regular manure removal. Manure removal and pen maintenance will be conducted as needed. In addition Aurora Organic Dairy will have all manure removed from pens also removed from the site as soon as possible. 3. Sprinkler systems Sprinkler systems, timed appropriately, are an effective method for keeping pen surfaces moist. Dairy cattle produce significant moisture through urine and feces. Pens surfaces are extensively maintained for cattle health. 4. Water Trucks Should nuisance dust conditions arise; water tanker trucks or portable sprinkling systems may be used for moisture control on pens and roadways to minimize nuisance dust conditions. Odor Odors result from the natural decomposition processes that start as soon as the manure is excreted and continue as long as any usable material remains as food for microorganisms living everywhere in soil, water and the manure. Odor strength depends on the kind of manure, and the • conditions under which it decomposes. Although occasionally unpleasant, the odors are not 3 • Aurora Organic Dairy • AGPROfessionals,LLC dangerous to health in the quantities customarily notices around animal feeding operations and • fields where manure is spread for fertilizer. Aurora Organic Dairy will use the methods and management practices listed below for odor control: 1. Establish good pen drainage Dry manure is less odorous than moist manure. The dairy will conduct routine pen cleaning and surface harrowing to reduce standing water and dry or remove wet manure. 2. Regular manure removal Reduce the overall quantity of odor producing sources. The dairy will conduct routine pen cleaning and harrowing as needed. As well as remove manure taken from pens offsite. 3. Composting Reduces volume, nutrients and minimizes odor and pests. 4. Reduce standing water Standing water can increase microbial digestion and odor producing by-products. Proper pen maintenance and surface grading will be conducted by the dairy to reduce standing • water. The stormwater ponds will be dewatered regularly in accordance with the Manure and Wastewater Management Plan for Aurora Organic Dairy. No chemical additives or treatments of the stormwater ponds for odor control are planned. Research to date indicates poor efficacy, if any, of these products. 5. Land application timing Typically air rises in the morning and sinks in the evening. Aurora Organic Dairy will consider weather conditions and prevailing wind direction to minimize odors from land application. If it is determined that nuisance dust and odor conditions persist, Aurora Organic Dairy may increase the frequency of the respective management practices previously outline such as pen cleaning, surface grading and pen maintenance. Additionally, if nuisance conditions continue to persist beyond increased maintenance interval controls, Aurora Organic Dairy will install physical or mechanical means such as living windbreaks and/or solid fences to further minimize nuisance conditions from dust and odors. Insects and rodents inhabit areas that 1) have an adequate to good food supply and 2) foster habitat prime for breeding and living. Key practices Aurora Organic Dairy will use to manage insects and rodents are to first eliminate possible habitat and then reduce the available food supply. • Aurora Organic Dairy • AGPROfessionals, LLC Aurora Organic Dairy will control flies by: • Pest Control Insects and Rodents 1. Regular manure removal and composting Manure management removes both food sources and habitat 2. Reduce standing water Standing water is a primary breeding ground for insects 3. Minimize fly habitat Standing water, weeds and grass, manure stockpiles, etc., are all prime habitat for reproduction and protection. Reduce or eliminate these areas where practical. 4. Weeds and grass management Keep weeds and grassy areas around pens to a minimum. These provide both protection and breeding areas. 5. Minimize stockpiles or storage of manure Stockpiles of manure provide both breeding and protective habitat. Keep stockpile use to • a minimum. 6. Biological treatments Parasitic wasps are excellent biological fly control and are widely used. The wasps lay their eggs in fly larvae hindering fly reproduction. Rodent control at Aurora Organic Dairy is best achieved by minimizing spillage of feedstuffs around the operation. Good housekeeping practices and regular feedbunk cleaning, site grading and maintenance are used to reduce feed sources. Rodent traps are effective control methods and will be used as necessary. In the event it is determines nuisance conditions from pest such as flies and rodents persist, Aurora Organic Dairy will initially increase the frequency of the housekeeping and management practices previously outlined. • • Colorado Department of Public Health and Environment Nutrient Management Plan for USR • GENERAL INFORMATION: Name of Facility: Aurora Organic Dairy,Platteville Facility Physical Location:7388 Hwy 66,Platteville,CO 80651 PRODUCTION AREA SECTION: A. STORAGE OF MANURE AND PROCESS WASTEWATER -61.17(S)(c)(i) The CAFO will ensure adequate storage of manure and process wastewater,including procedures to ensure proper operation and maintenance of the impoundments and tanks. The following procedures will be followed by the facility: (A) Except during the designed storm event,manure and process wastewater stored in impoundments and terminal tanks will be removed as necessary to maintain a minimum of two feet of freeboard,or Department-approved alternative freeboard. (B) Whenever the design capacity of impoundments and tanks is less than the volume required to store runoff from the f1 25-Year,24- Hour Storm,X Chronic Storm or L1 100-Year,24-Hour Storm the structures will be dewatered to a level that restores the required capacity once soils on a land application site have the water holding capacity to receive process wastewater. Process Wastewater Storage Information: 2. Total Capacity Required to 3. Total Capacity Required to I. Impoundment/Tank/Drainage Hold all Wastes Accumulated Contain Storm Event Runoff 4.Total Capacity Available(acre-feet) Basin ID During the Storage Period and Direct Precipitation (acre-feet) (acre-feet) Pond 1 7.51 (Nov-Feb) 1136 20.50 • Manure Storage Information: 2. Amount of Manure Produced 3. Total Amount of Non-pen Area Manure Storage 1. Manure Storage Area ID (tons/year) Available(tons) none 13,728 tons at 46%moisture Hauled to 3rd party regularly Check here X if excess manure is transferred to a third party. Check here L if manure is stockpiled in pen area. RECORDKEEPI.NG REQUIREMENT: 1)Documentation that except during the designed storm event,manure and process wastewater stored in impoundments and taminal tanks is removed as necessary to meirdain a mini et=of two(2)fed of&Zooid,except wham the opaatar has requested and the Ag Program has approved an alternative freeboard level 2)Documentation that whenever the available capacity of impoundments and tanks is Its than the vohime required to store runoff from the designed storm event,the structures shall be dewatered to a level that restores the required capacity once soils on a land application site have the water holding capacity to receive process wastewater. B. MORTALITY MANAGEMENT—61.17(S)(c)(ii) The CAFO will ensure proper management of animal mortalities to ensure that they are not disposed of in a liquid manure,storm water,or process wastewater storage system that is not specifically designed to treat animal mortalities. Method of Animal Mortalities Handling(check all that are applicable): X Composting ❑ Rendering X Burial II Other: • RECORDKEEPING REQUIREMENT: 1)Documentation that ensures the proper management of animal mortalities to ensure that they are not disposal of in a liquid manure,storm water, or process wastewater storage system that is not specifically designed to treat animal mortalities. NMP for Aurora Dairy for USR 23 May 2007 Page 1 of 7 • • C. CLEAN WATER DIVERSION—61.17(8)(c)(iii) The CAFO will ensure that clean water resulting from the r 25-Year,24-Hour Storm,X Chronic Storm or- 100-Year,24-Hour Storm is diverted • from the production area. Clean water diversions used(check all that are applicable): Location Used: X Berms Farm road to the west X Channels Borrow ditch to the north X Natural Topography South and east ' Other RECORDKEEPING REQUIREMENT: 1)Documentation that clean water is diverted from the designed storm event from the production area. D. PREVENTION OF DIRECT CONTACT OF ANIMALS WITH WATERS OF THE UNITED STATES-61.17(8)(c)(iv) The CAFO will prevent direct contact of confined animals with surface waters. Waters of the U.S.means,in part: a) All waters...susceptible to use in interstate or foreign commerce...; b) All interstate waters...; c) All other waters such as intrastate lakes,rivers,streams(including intermittent streams),mudflats,sandflats,wetlands'(including wetlands adjacent to waters identified in(a)through(e)of this definition),sloughs,prairie potholes,wet meadows,playa lakes,or natural ponds the use,degradation,or destruction of which would affect or could affect interstate or foreign commerce including any such waters: I) Which are or could be used by interstate or foreign travelers for recreational or other purposes; 2) From which fish or shellfish are or could be taken and sold in interstate or foreign commerce;or 3) Which are used or could be used for industrial purposes...; d) All impoundments of waters otherwise defined as waters of the United States under this definition;and e) Tributaries of waters identified in paragraphs(a)through(d)of this definition. Wetlands means those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support,and that under normal circumstances do support,a prevalence of vegetation typically adapted for life in saturated soil conditions. t Waste treatment systems,including treatment ponds or lagoons designed to meet the requirements of CWA(other than cooling ponds as defined in 40 CFR 423.11(m)which also meet the criteria of this definition)are not waters of the United States. This exclusion applies only to manmade bodies of water which neither were originally created in waters of the United States(such as disposal area in wetlands)nor resulted from the impoundment of waters of the United States. I. Do waters of the U.S.flow throu: the,reduction area? L. Yes X No 2. Do the animals have access to waters of the United States? -. Yes X No 3. If yes,list the measures used to prevent direct contact(e.g.fencing)of animals with waters of the United States: RECORDKEEPING REQUIREMENT: I)Documentation that them is prevention of direst contact of confi ned animals with waters of the United States. E. CHEMICAL AND OTHER CONTAMINANT HANDLING-61.17(8)(c)(v) The CAFO will ensure chemicals and other contaminants handled on-site are not disposed of in any manure,storm water,or process wastewater storage system unless specifically designed to treat such chemicals and other contaminants. Check all that are applicable: X Chemicals are used and empty containers are disposed of in accordance with manufacturer's guidelines Chemicals are not stored in a room with a floor drain that discharges outside X Where are chemicals stored:milk parlor with floor drain plug,shop without floor drain X Storage is covered X Storage has secondary containment(fuel tanks) D Chemicals are stored in proper containers X Where are chemicals disposed:not in wastewater impoundments No chemicals are used at the facility Other: RECORDKEEPING REQUIREMENT: 1)Documentation that chemicals and other contaminants handled on-site arc not disposed of in any manure,storm water,or process wastewater storage system unless specifically designed to treat such chemicals and other contaminants. • NMP for Aurora Dairy for USR 23 May 2007 Page 2 of 7 • • LAND APPLICATION SECTION: • If manure or process wastewater will be applied to a land application site,check the box here and go to Part(F):X If neither manure nor process wastewater will be applied to a land application site or be transferred to a third party,check the box here and go to Part(M): If neither manure nor process wastewater will be applied to a land application site,but one or both will be transferred to a third party,check the box here and go to Part(G)then to Part(M): F. CONSERVATION PRACTICES—61.17(8)(c)(vi) The CAFO will identify and implement site-specific conservation practices to control runoff of pollutants to surface water. I. Conservation Practices for Land Application Sites Please indicate where any of the following best management practices are being implemented to control runoff of pollutants to surface water: Conservation Practice: Land Application Site ID Where Practice is Implemented(for land application sites where surface water is located in or down-gradient of the site): Buffer 1,ponds,Salazar,Cogbum Setback 2/3,4,5 Conservation Tillage Constructed Wetland Infiltration Field Grass Filter Terrace Tail Water Pit Process wastewater is not allowed to reach end of field Other(describe): 2. The facility will also implement the following conservation practices: (A) Solid manure will be incorporated as soon as possible after application,unless the application site has perennial vegetation or is no-tilled • cropped,or except where the nutrient management plan adequately demonstrates that surface water quality will be protected where manure is not so incorporated. (B) Process wastewater to furrow-or flood-irrigated land application sites will be applied in a manner that prevents any process wastewater runoff into surface waters. (C) When process wastewater is sprinkler-applied,the soil water holding capacity of the soil will not be exceeded. (D) Process wastewater will not be applied to either frozen or flooded(i.e.,saturated)land application sites. (E) Manure or process wastewater will not be land-applied within 150 feet of domestic water supply wells,and within 300 feet of community domestic water supply wells. RECORDKEEPING REQUIREMENT: 1)Documentation that sitespecific conservation practices have been identified and implemented to control runoff of pollutants to surface water. G. SAMPLING&TESTING OF MANURE,PROCESS WASTEWATER,AND SOIL—61.17(8)(c)(vii)land associated parts of a CAFO permit] The CAFO will identify protocols for appropriate sampling and testing of manure,process wastewater,and soil. Manure Process Wastewater Soil Frequency of X Annually X Annually For nitrate-As often as necessary to meet the Sampling: (If analyses are conducted (If analyses are conducted application rate calculation requirements: more frequently than more frequently than (indicate frequency)annual or semiannual annually,the analyses must annually,the analyses must For phosphorus—minimum of once every 5 years or as be kept on-site for 5 years.) be kept on-site for 5 years.) necessary to meet the transport risk assessment requirements Analyzed for: Total Nitrogen,Ammonia(as Total Nitrogen,Ammonia Nitrate-to necessary depth zone(s); N),Nitrate(as N),and Total (as N),Nitrate(as N),and Phosphorus—top one-foot Phosphorus Total Phosphorus Sampling X CSU Cooperative X CSUCE 568 A X CSUCE 568 A Protocol Used: Extension(CE)568 A ❑ Other CSUCE Publication (please cite): Adjacent State CE Publication (please cite): Testing Protocol CSUCE X USEPA Method X "Methods of Soil Analysis,Part 3,Chemical Used: X Adjacent State CE 'J Department-approved Methods" • (please cite):Olsen Lab, Method(requested in n Department-approved Method(requested in MDA certified writing) writing) NMP for Aurora Dairy for USR 23 May 2007 Page 3 of 7 • • II. NUTRIENT BUDGET INFORMATION—61.17(8)(c)(x)(A)(VI) • Nutrient Budget Information: Crop: Manure and Process Wastewater Application Rate Description of Method(calculation/table)to be Used: Calculated: Table 13.04,CSU Do-it-Yourself Nutrient Management Plan Grass pasture X CSUCE Published Fertilizer Suggestions 11 Adjacent State CE-Published Fertilizer Suggestions Maximum 185 lbs N with little soil nitrate. See attachment. CNMP Method that meets USDA-NRCS standards Subtractions include-(30 x%OM)-previous manure CO NRCS NMP guidelines application credit Department-approved Method KSU Bulletin MF-2227 Triticale silage and L CSUCE Published Fertilizer Suggestions pasture X Adjacent State CE-Published Fertilizer Suggestions [(yield goal(lbs/a DM))*(0.04)*(1.0)]-(7.2 x ppm NO3- CNMP Method that meets USDA-NRCS standards N(24 in))—(30 x%OM)-previous manure application CO NRCS NMP guidelines credit-plow down legume credit - Department-approved Method Bulletin 568A Sorghum silage and X CSUCE Published Fertilizer Suggestions pasture Adjacent State CE-Published Fertilizer Suggestions [9 x yield goal(t/a)]-[8 x ppm soil NOrN(ave 2 ft)]—[30 x —. CNMP Method that meets USDA-NRCS standards %OM]—previous manure application credits—plow down CO NRCS NMP guidelines legume credit Department-approved Method Bulletin 568A Com silage X CSUCE Published Fertilizer Suggestions Adjacent State CE-Published Fertilizer Suggestions 35+[7.5 x yield goal(t/a)]—[8 x ppm soil NOS-N(ave 2 ft)] CNMP Method that meets USDA-NRCS standards —[yield goal x 0.85 x%OM]—previous manure application — CO NRCS NMP guidelines credits—plow down legume credit Department-approved Method • Soil publication#0.565 Alfalfa X CSUCE Published Fertilizer Suggestions - Adjacent State CE-Published Fertilizer Suggestions [yield(lbs/a)x(%protein/6.25)x(0.6 soil type CNMP Method that meets USDA-NRCS standards adjustment)]/0.66 efficiency factor—(3.6 x ppm NOS-N(24 CO NRCS NMP guidelines in))—(30 x%OM)—previous manure application credit Department-approved Method L CSUCE Published Fertilizer Suggestions I Adjacent State CE-Published Fertilizer Suggestions -- CNMP Method that meets USDA-NRCS standards -- CO NRCS NMP guidelines - Department-approved Method Describe how realistic yield goals will be determined: Crops are grazed and provide only part of the nutrient requirements of the animal. Harvested silage does not have a history of production at this facility. Therefore an average for the area as determined by CSU Extension,NRCS,or FSA will be used unless a more accurate determination of grazing intake can be made(ie.reduction in intake of TMR,etc.) RECORDKEEPING REOUIREMENT: 1)Documentation of the identification of protocols for appropriate sampling and testing of manure,process wastewater,and soil. • NMP for Aurora Dairy for USR 23 May 2007 Page 4 of 7 • • • I. LAND APPLICATION—61.17(8)(c)(viii) The CAFO will establish protocols to land apply manure or process wastewater in accordance with site specific nutrient management practices that ensure appropriate agricultural utilization of the nutrients in the manure or process wastewater. The facility will implement the following protocols: (A) No application of manure or process wastewater will be made to a land application site at a rate that will exceed the capacity of the soil and the planned crops to assimilate nitrate-nitrogen within 12 months of the manure or process wastewater being applied. (B) Manure and process wastewater shall be applied as uniformly as possible with properly calibrated equipment. I) Method(s)of manure application?Spreader truck 2) Method(s)of process wastewater application?Sideroll sprinkler and big gun 3) Is nutrient application equipment calibrated at least annually? X Yes fl No RECOROKEEPING REQUIREMENT: I)Documentation that protocols have been established for land application of manure or process wastewater in accordance with site- specific nutrient management practices that ensure appropriate agricultural utilisation of the nutrients in the mange or process wastewata. J. PHOSPHORUS AND NITROGEN TRANSPORT—61.17(8)(c)(x)(A) Application rates for manure and process wastewater applied to land application sites will minimize phosphorus and nitrogen transport from the sites to surface waters and will be in accordance with the following standards: (I) An initial assessment of the potential for phosphorus and nitrogen transport risk to surface water will be made prior to manure or process wastewater being applied to an application site. There is currently no published tool suitable for assessing nitrogen transport risk. Phosphorus and nitrogen transport risk assessment will be made using the Colorado Phosphorus Index Risk Assessment. The following flow chart will be used to determine whether or not a phosphorus risk assessment must be completed for a land application sites: • Will animal manure or other organic nutrients be applied to this site? A Colorado Phosphorus Index NO — , Risk Assessment is not required for this site. YES • Is soil test P greater than: A Colorado Phosphorus Risk 10 ppm AB-DTPA;30 ppm Bray Pl;40 NO Assessment is not required for ppm Mehlich 3,or;20 ppm Olsen this site. Base organic nutrient (NaHCO,) application rates on crop nitrogen requirements. YES • Can storm water runoff or irrigation A Colorado Phosphorus Risk tailwater reach a surface water body? NO 0 Assessment is not required for (Continuous or intermittent stream, this site. Base organic nutrient irrigation ditch,lake,or wetland,etc.) application rates on crop nitrogen requirements. YES • Complete a Colorado Phosphorus Index Risk Assessment for this site. • NMP for Aurora Dairy for USR 23 May 2007 Page 5 of 7 • • • J. PHOSPHORUS AND NITROGEN TRANSPORT—61.17(8)(c)(x)(A)(continued) On sites for which the facility must complete a Colorado Phosphorus Index Risk Assessment,the following best management practices will be incorporated,if applicable: (A) Phosphorus-based manure and process wastewater application rates will be made to an application site where the risk of off-site phosphorus transport is scored as high. (B) No application of manure or process wastewater will be made to a land application site where the risk of off-site phosphorus transport is rated as very high. (Where the initial assessment of a land application site is scored as very high, the facility has a three-year period within which to manage the site for the purpose of lowering the phosphorus transport risk assessment rating to high or less. During this period,manure or process wastewater may be applied to the site at either nitrogen-or phosphorus-based rates.) (C) No application of manure or process wastewater will be made to a land application site where the risk of off-site nitrogen transport to surface water is not minimized. (D) Where a multi-year phosphorus application was made to a land application site,no additional manure or process wastewater will be applied to the same site in subsequent years until the applied phosphorus has been removed from the site via harvest and crop removal. After an initial assessment is made of potential for phosphorus and/or nitrogen transport from a land application site to surface water, additional assessments will be made at the following frequency,whichever is sooner: Both phosphorus and nitrogen transport risk Every 5 years Where a crop management change has occurred For phosphorus-Assess within 1 year after such a change would reasonably result in an increase in the transport risk assessment score. For nitrogen-Assess within I year after such a change would reasonably result in the nitrogen transport to surface water not being minimized. Where a phosphorus transport risk assessment score was very Assess phosphorus transport risk within 6 months of intending to high apply manure or process wastewater,except where the initial assessment is scored as very high,then there shall be a three-year period within which to manage the site for the purpose of lowering the phosphorus transport risk assessment rating to high or less. During this period,manure or process wastewater may • be applied to the site at either nitrogen-or phosphorus-based rates. Where a nitrogen transport risk assessment reveals that nitrogen Assess nitrogen transport risk within 6 months of intending to transport to surface water is not minimized apply manure or process wastewater. K. INSPECT LAND APPLICATION EQUIPMENT—61.17(8)(c)(x)(C) The CAFO will periodically inspect equipment used for land application of manure or process wastewater for leaks. The facility will inspect land application equipment at the following frequencies: (1) Annually(within the six month period prior to the first application of manure or process wastewater);and (2) At least once daily when process wastewater is being applied L. SETBACK REQUIREMENTS—61.17(S)(c)(x)(D) The CAFO will not apply manure and process wastewater: (I) Closer than 100 feet to any down-gradient surface waters,open tile line intake structures,sinkholes,agricultural wellheads,or other conduits to surface waters unless one of the following is implemented: (II) 35-foot vegetated buffer to any down-gradient water of the U.S.,open tile intake structures,sinkholes, agricultural wellheads,or other conduits to waters of the U.S.where applications of manure,litter,or process wastewater are prohibited. (III) Alternative compliance practices to the 100-foot setback with prior approval of the Department. Please describe:shelter,with CDPHE approval Compliance Practice Implemented Land Application Site ID Where I(1), (II)or(III)above]: Practice is Implemented: Down-gradient Surface Waters I;II 2/3,4,5;1,ponds,Salazar,Cogbum Open Tile Line Intake Structure Sinkholes Agricultural Wellheads I;III Salazar;ponds Other Conduits to Surface Waters • NMP for Aurora Dairy for USR 23 May 2007 Page 6 of 7 • •• M. CERTIFICATION STATEMENT I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance • with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system,or those persons directly responsible for gathering the information,the information submitted is to the best of my knowledge and belief true,accurate and complete. I am aware that there are significant penalties for submitting false information,including the possibility of fine and imprisonment for knowing violations. A. NAME AND OFFICIAL TITLE(PRINT OR TYPE) B. PHONE NUMBER ) C. SIGNATURE D. DATE SIGNED • • NMP for Aurora Dairy for USR 23 May 2007 Page 7 of 7 • • g C • L W w t O q� ES8rff o000NF- 0 '� L L £' O m m 0 v n CO mm r 9 C o (-4 ., r N Y c ' o S .- m o o n m O o Or O O g . o f R O O r O O m76 Z or 12 E E E ❑ o} J$' min m "o " - E m zn mm8 » i_ Qoomnmeervn Nm00 g L e w' l2 F 'S 9 = 3 O m o 0 U o . N S r p m > co C m _ or in $ .C IL 2 - y m .- F m o m p g ,, t1888888888888 8 p g' 0 W N ❑ m G d of < N ¢' 20.. ... < > o t G n 0 CO n ga. 8 m w > in r a zry 588088 ! p Er Z L 't z6 % cc o 0 0 0 0 0 0 0 0 > J ,-n o C'C CS .Yi ran w 'O o oce9.m N + `u48v, @SVe8 R8� mS a° ` n coon - v i _ re ,ems o rn W N$m m ri m c, w2 5 — ce p -< 00000m-- '- 0000 o cm I- ,- 0 w .Mt - 3 m o it ti m . O go c�i3 ma8 a � a p m w'2Rq RSSS838SSR 0 c-i W ? oftm N F g .-J tV t7 4 r0 tri 4 tV s oE = N -6 . . to o V. W' 0 ru gmA'S- $ o 0 r 2< w to c to tV w CL n- °I o 0 0 0 0 0 0 0 3 0 0 0 0 0 0 0 z H m c0] CO N Le O CO O > w C m 2 2 200 0 i Q g s t R§ §R Sm's . .4-eJ3y'ewniOA me8eS8 ., y u • Q mtu a F 3x415888888888888 8 co ot t § 8t, 1 dm2@ d a a6 00 d J 0Q Q « a2 z f z N a` c e `t_' ae c c U c gg = go w Ci C' gnm mme o-ie Ssv_x 8� voi_lQi - -�8 z mom ' m . O g< 000000 0 00 0wit. a '� 2 = o g a — i w o- 2w . 0w gQg$ gggggg co 3 `or ryry > g z �s g,8o880188888''.8 S as$@@m@ ¢"=' � o NI t3 a U 0 illod CO m = �< O�Io to o..0.10 o' wU' y S88a0 S = Uam ' S� m 40 Q 0) 3 — cc ee m p $ 44862 F. .o8e: g' °' zr f OJ n § ddd� tv� dd, dd 0 yy. s d -I = E •(0 «_.LE t3=a zz ` rmmo 6o8" Lo H `e .tx. : . w8 -m V I !.. wm .1 °0_ mtzioo oo v' am ! not: "' mv �$ a vd 3 < g a o 8 5 2 — w > mre omo re i 7,.. I? .E .E SS_ E ` .E e 0 nn gx8'��1 2Oaa 8 0 €8r� em £�m W '� co Uczi w ° o S 8 mo In vmi co8N- in 8 z m z y � NF ! E n a a i '?c � `aS `a3 < oacddo— « oo— 000— 00 n oah c n a O CO O li S. or co< c c a at a4g, i2 c 20=.o W 3 U i- •- n VFW £ ,:c.) 0d d on o o000080 a LL 'm@°I rQ ,5 -EQ ! E-5 -6 a ^ t_ wa V % pn ° E = ae ICZ TV co E' K� G 2ait ry - .. t _ o :. Om pp�� p �p pr $ = m8 8-, r NE �` HQ6Q O 228220'O818 t0m O� �No'O O DS � N8 Q = g , I m m 8 jo o c. $ W•e oi,,oIo., o d d'.o0 0 0 0 w it w '0 m N QJl � '^K cow-94 .c.., _ W m e a N 3 �. :au) a 8 E 8N�' = 'E N qo o mganc 3 '°2 .S12:2^A e..'1g,,$',PgM $ J ? tto j ._ � o ? ¢ . Q Z ate- _a >.� e.§ dd� 'N o LL zcc � > ¢. > z Ttt -¢ $ co 2 18 .0 == _ '€ 8 == a m J m N $ = az jN`�' j8g o = = a' C to O Fcg 5, a s c> ,�� p c>=2 ¢ ‹ D Ja E p tm" b' 5 a � � >. ma. m . oN m_ - g c • U' - a' 2 ti U W C Aurora Dairy USR Land Application Requirements Table 3: Land Application Requirements for 25-year,24-hour Storm Event 25-year,24-hour storm volume( A.F.),gallons - Illtal Nitrogen contained in liquid,lbs. - 'Total-N= 4.0 lbs./1,000 gal mmonium-Nitrogen contained in liquid,lbs. - 'NH4--N= 2.0 lbs./1,000 gal Organic-Nitrogen contained in liquid,lbs. - Organic-N= 2.0 lbs./1,000 gal Ammonium-Nitrogen available after irrigation,lbs. - 45.0% Sprinkler irrigation loss' Organic-Nitrogen available 3rd year,lbs. - 42%Equilibrium mineralization rate for organic-N' Nitrogen available to plants(PAN)yr.after yr.,lbs. - Based on CSU Extension Soil Organic Matter,% 1.0 Bulletin#538 Irrigation Water NO3 content,ppm 5.0 1.5 A.F./Acre Irrigation water assumed Residual NO3 in soil,ppm 20.0 grass trit/sorgh Expected Yield(grain,Bu/acre;silage,tons/acre) N req.w/listed O.M.,soil N,&la.Water NO3,(lb./acre) Acres req.if effluent applied via sprinkler irrigation 'Taken from CSU's Bulletin No.568A Best Management Practices for Manure Utilization Table 4:Land Application Requirements for 10-year,10-day Storm Event Maximum pumping requirement( 11.36 A.F.),gallons 3,701,415 Total Nitrogen contained in liquid,lbs. 14,806 'Total-N= 4.0 lbs./1,000 gal Ammonium-Nitrogen contained in liquid,lbs. 7,403 *NH4-N= 2.0 lbs./1,000 gal Organic-Nitrogen contained in liquid,lbs. 7,403 Organic-N= 2.0 lbs./1,000 gal Ammonium-Nitrogen available after irrigation,lbs. 4,072 45.0%Sprinkler irrigation loss' Organic-Nitrogen available 3rd year,lbs. 3,109 42% Equilibrium mineralization rate for organic-N' Nitrogen available to plants(PAN)yr.after yr.,lbs. 7,181 Soil Organic Matter,% 1.2 Irrigation Water NO3 content,ppm 5.0 Residual NO3 in soil,ppm 10.0 10 grass triVsorgh I Expected Yield(grain,Bu/acre;silage,tons/acre) 4 3 20 N req.w/listed O.M.,soil N,&lir.Water NO3,(lb./acre) 90 256 Acres req.if effluent applied via sprinkler irrigation 80 28 • 'Taken from CSU's Bulletin No.568A Best Management Practices for Manure Utilization Table 5: Land Application Requirements for Average Years'Stormwater&Process Water I Maximum pumping requirement( 26.00 A.F.),gallons 8,471,549 Total Nitrogen contained in liquid,lbs. 33,886 'Total-N= 4.0 lbs./1.000 gal Ammonium-Nitrogen contained in liquid,lbs. 16,943 'NH4-N= 2.0 lbs./1,000 gal Organic-Nitrogen contained in liquid,lbs. 16,943 Organic-N= 2.0 lbs./1,000 gal Ammonium-Nitrogen available after irrigation,lbs. 9,319 45.0%Sprinkler irrigation loss' Organic-Nitrogen available 3rd year,lbs. 7,116 42% Equilibrium mineralization rate for organic-N' Nitrogen available to plants(PAN)yr.after yr.,lbs. 16,435 Soil Organic Matter,W. 1.2 Irrigation Water NO3 content,ppm 5.0 Residual NO3 in soil,ppm 10.0 10 grass triVsorgh I Expected Yield(grain,Bu/acre;silage or grass,tons/acre) 4 3 20 N req.w/listed O.M.,soil N,&Irr.Water NO3,(lb./acre) 90 256 Acres req.if effluent applied via sprinkler irrigation 183 64 'Taken from CSU's Bulletin No.568A Best Management Practices for Manure Utilization Table 4:Land Application Requirements-Solid Manure I Nitrogen produced annually, 0% used,rest given - Nitrogen loss during storage&handling,lbs. - 40% lost as ammonia Total Nitrogen in manure before application,lbs. - Ammonium-Nitrogen contained in manure,lbs. - 'NH4-N= 38.5%of total N in solid manure Organic-Nitrogen contained in manure,lbs. - 'Organic-N= 61.5%of total N in solid manure NH4-N available after spreading(no incorporation),lbs. - *NH4-N bss= 22.5%within 4 days of application Organic-Nitrogen available 3rd year,lbs. - 55% Equilibrium mineralization rate for organic-N' Nitrogen available to plants(PAN)yr.after yr.,lbs. - Soil Organic Matter,% 1.0 Irrigation Water NO3 content,ppm 5.0 Oesidual NO3 in soil,ppm 12.0 Alfalfa Com Silage xpected Yield(tons) 7 30 Based on CSU Extension N req.w/listed O.M.&residual soil N,lb./acre 159 118 Bulletin#538 Acres req. - - 1.5 A.F./Acre Irrigation water assumed 'Taken from CSU's Bulletin No.568A Best Management Practices for Manure Utilization AGPROfessionals,LLC 1 of 1 • • Aurora Dairy USR Manure Production • Table 6:Solid Manure Produced and Associated Nutrients ASAE D384.1-Dec 2001 Moisture Manure Manure TS VS Nitrogen Prosphorus Potassium Number of, Wt./hd, (lbs./day/ (ft'/day/ (lbs./day/ (lbs./day/ (lbs./day/ (lbs./day/ (lbs./day/ Animal Type Hd lbs. Total Wt.,lbs. (%) 1000#) 1000# 1000#) 1000#) 1000#) 1000#) 1000#) Milk Cows 1,600 1,500 2,400,000 86.0 86.0 1.40 12.0 10.0 0.45 0.094 0.29 Dry Cows 400 1,200 480,000 86.0 86.0 1.40 12.0 10.0 0.45 0.094 0.29 Bulls 90 2,200 198,000 86.0 86.0 1.40 12.0 10.0 0.45 0.094 0.29 Heifers - 750 - 86.0 86.0 1.40 12.0 10.0 0.45 0.094 0.29 Heifers 455 450 204,750 86.0 86O 1.40 12.0 10.0 0.45 0.094 0.29 Calves 455 200 91,000 86.0 86.0 1.40 12.0 10.0 0.45 0.094 0.29 Totals 3,000 3,373,750 Total Daily Production 290,143 4,723 40,485 33,738 1,518 317 978 Total Annual Production 105,902,013 1,723,986 14,777,025 12,314,188 554,138 115,753 357,111 Manure produced wl moisture content of 86.0% 52,951 tons Manure to apply w/moisture content of 46.0% 13,728 Ions Compost produced w/moisture content of 40.0% 12,355 tons ill AGPROfessionals,LLC 1 of 1 • _AGPRO LANDPRO COMPLETE LAND AND RESOURCE SOLUTIONS Lagoon Liner Seepage Rate Facility Name- Aurora Organic Dairy, Hwy 66 Seepage rates are calculated by applying Darcy's Law for permeability analysis. The hydraulic permeability(k)for these lagoons were calculated by Earth Engineering Consultant,Inc., in accordance with ASTM Specification D-2922. Darcy's Law is the primary model used to design and evaluated effectiveness of liners in manure storage facilities. Darcy's Law relates the amount of seepage expected to occur to particular soil characteristics,liner thickness,and maximum depth of liquid in the pond. The resulting hydraulic permeability laboratory results are reported in cm/s. Final seepage rates can then be calculated as followed: v=k(H+d)/d v=Seepage Rate(cm/sec) k=Permeability coefficient of soil liner(cm/sec) H=Maximum liquid depth(ft) d=Thickness of liner(ft) • Laboratory Lagoon Determined Maximum Design Liner Calculated Permeability Factor Water Depth for Thickness Seepage Rate 'k'(cm/s) Pond(ft) (11) (cm/s) Pond ID 'k' 'H' 'd' '1/1 New Pond 2.09E-08 12.00 1.00 2.72E-07 Settling Basin 2.09E-08 4.00 1.00 1.05E-07 OO REG1 Calculations Reviewed By: ...E' •C.fs�c• Wayne E.Eckas, P.E. 7 ooni 4111 ENGINEERING, PLANNING, CONSULTING & REAL ESTATE AGPROfessionals,LLC/LANDPROfessionals,LLC 4350 Highway 66•Longmont,CO 80504 970.535.9318/office• 303.485.7838/metro■970.535.9854/fax• www.agpros.com Hello