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Home My WebLink About20031466.tiff AGPROfessionals,LLC 4311 Hwy 66,Suite 4, Longmont, CO 80504 JF CATTLE 23016 Weld County Rd 74 Eaton, CO 80615 Comprehensive Manure and Wastewater Management Plan Prepared by: AGPROfessionals, LLC 4311 Hwy 66, Suite 4 Longmont, CO 80504 February 17, 2003 Your "Pro Ag" Environmental Professionals 2003-1466 AGPROfessionals, LLC 02.17.2003 TABLE OF CONTENTS INTRODUCTION 3 PROFESSIONAL ENGINEER'S CERTIFICATION 3 CONTACTS AND AUTHORIZED PERSONS 3 LEGAL DESCRIPTION 3 SITE DESCRIPTION 4 FACILITY 4 MAPS 4 STORMWATER AND PROCESS WASTEWATER MANAGEMENT 4 SURFACE RUNOFF 4 25 year, 24-hour Storm 4 10 year, 10-day Storm 5 Surface Runoff Management 5 PROCESS WASTEWATER 5 GROUND WATER PROTECTION 6 POND LEVELS 6 FLOODPLAINS 6 LAND APPLICATION OF STORMWATER/PROCESS WASTEWATER 6 AVERAGE YEARS' STORMWATER/PROCESS WASTEWATER APPLICATION 7 Sustainability 8 SOLID MANURE MANAGEMENT 8 LAND APPLICATION OF SOLID MANURE 8 NUTRIENT UTILIZATION 9 SOIL TESTING 9 IRRIGATION WATER TESTING 9 MANURE AND STORMWATER TESTING 9 AGRONOMIC CALCULATIONS 10 RECORD KEEPING 10 LIMITATIONS 10 Appendix A 11 Appendix B 12 Appendix C 13 Appendix D 14 Appendix E 15 Appendix F 16 JF Cattle Comprehensive Manure & Wastewater Management Plan 2 AGPROfessionals, LLC 02.17.2003 Introduction This Comprehensive Manure and Wastewater Management Plan (CMWMP) has been developed and implemented to comply with requirements, conditions and limitations of the Colorado "Confined Animal Feeding Operations Control Regulation", 5 CCR 1002-81. This CMWMP outlines current site conditions, structures and areas requiring management of solid manure, stormwater run-off and process wastewater. This CMWMP will be kept on-site and amended prior to any change in design, construction, operation or maintenance which significantly increases the potential for discharge of solid manure, stormwater run-off and process wastewater to waters of the State. This CMWMP shall be amended if it is ineffective in controlling discharges from the facility. Below is the date of the last CMWMP amendment: Amendment 1: Amendment 2: JF Cattle will keep records relating to the CMWMP onsite for a minimum of three years. Professional Engineer's Certification This CMWMP has been prepared by, or under the direct supervision of, Eric W. Dunker, P.E., Colorado Registered Professional Engineer No. 33915. � • -Erb `_.. w.. .•, 1N. ,�,S�jF`•, + h a a� .e • • fi Contacts and Authorized Persons '.:.:.....�.:: John Johnson 23016 Weld County Rd 74 Eaton, CO 80615 (970) 454-1043 The individual(s) at this facility who is (are) responsible for developing and implementation, maintenance and revision of this CMWMP are listed below: John Johnson Owner (Name) (Title) Legal Description The legal description of JF Cattle is: The Northwest Ye of Section 1, Township 6 North, Range 65 West of the 6th Principle Meridian, Weld County, Colorado. JF Cattle Comprehensive Manure& Wastewater Management Plan 3 AGPROfessionals, LLC 02.17.2003 Site Description Facility JF Cattle is an existing dairy-heifer feedlot facility located in the southeast corner of the intersection of Weld County Roads 47 and 74, approximately 2 miles west of Galeton, Colorado. Facility construction is industry-typical steel and wood posts, pipe and cable fence, concrete feed aprons and feed bunks, feed alleys and cow movement alleys, feed storage areas and associated storage structures and maintenance facilities, waste management and control structures. JF Cattle is planning a minor modification of the facility. JF Cattle plans to add a milk parlor and reduce total cattle numbers proportionally. JF Cattle is currently permitted to have a maximum of 11,240 head of cattle. When JF Cattle begins milking cows, the maximum capacity will decrease 200 head for every 500 head of milk cows. Therefore the ultimate maximum capacity would remain at 11,240 head if no milk cows and will reduce to 10,440 if 2,000 cows are being milked. Farm ground surrounds the facility. Maps The maps described below are included in Appendix A. Topographic Map The Topographical Location Map shows the location of JF Cattle, surrounding sites, topography and major drainages. Site Layout Map The Site Layout Map details the modified configuration of the dairy. Soils Map The USDA Soil Survey map details the area's soil types. Also included are detailed soil descriptions. Stormwater and Process Wastewater Management Surface Runoff JF Cattle controls stormwater with several stormwater ponds for the main facility and one proposed process wastewater/stormwater pond just south of the existing ponds. (see Site Layout Map in Appendix A). The entire existing facility drains to the east and into the existing ponds. These structures are large enough to handle the flow from a 25-year, 24-hour or 10-year, 10-day storm event. The Middle Pond will be expanded to better line up with the corrals and add storage volume. The proposed process wastewater/stormwater pond will be completed while the new milk parlor is constructed. JF Cattle will monitor the site and maintain appropriate diversion structures to ensure runoff enters the stormwater collection systems. 25 year, 24-hour Storm The 25-year, 24-hour storm event for the area west of Galeton, Colorado is 3.0 inches. Using the SCS runoff curve number 90 for un-surfaced lots and 97 for paved areas, the following table was generated: JF Cattle Comprehensive Manure& Wastewater Management Plan 4 AGPROfessionals, LLC 02.17.2003 Table 1 -25-Year,24-Hour Storm Containment Requirements Main Area New Area Surface Runoff from Storm,Acre-Feet 10.95 1.78 Rain falling directly on ponds, Acre-Feet 1.33 0.84 Total Containment Capacity Required, Acre-Feet 12.28 2.62 Containment Capacity Available, Acre-Feet 20.82 16.30 Excess Containment Capacity Available,Acre-Feet 8.54 13.68 The 25-year, 24-hour storm and pond capacity calculations are located in Appendix B. 10-year, 10-day Storm The 10-year, 10-day storm event for Greeley, Colorado is 4.21 inches. Using the SCS runoff curve number 81 for un-surfaced lots and 94 for paved areas, the following table was generated: Table 2- 10-Year, 10-Day Storm Containment Requirements Main Area New Area Surface Runoff from Storm, Acre-Feet 12.82 2.08 Rain falling directly on ponds,Acre-Feet 1.87 1.18 Total Containment Capacity Required, Acre-Feet 14.69 3.27 Containment Capacity Available,Acre-Feet 20.82 16.30 Excess Containment Capacity Available, Acre-Feet 6.13 13.04 The 10-year, 10-day storm and pond capacity calculations are located in Appendix B. Surface Runoff Management JF Cattle will maintain the lagoon systems to contain a 10-year, 10-day storm event. Should stormwater runoff or process wastewater elevate the lagoons beyond their capacity to contain a 10-year, 10-day storm, the system will be dewatered within 15 days to achieve the required retention capacity as outlined in the state's regulations. Pumping to area farm ground dewaters the lagoons. JF Cattle has available approximately 130 acres of center-pivot irrigated land available for application of wastewater. The land application area is located across the ditch to the east (see the Topographic Map in Appendix A). Process Wastewater JF Cattle generates process wastewater within the milking parlor. It is estimated that JF Cattle will generate a maximum of 13,334 gallons of process wastewater per day at maximum milking capacity of 2,000 head. A table summarizes the process wastewater in Appendix B. Dairy parlor floors and walls, milking equipment, pipelines, and tanks are washed with fresh water. Wastewater flows via pipe, east into a twin concrete weepy dam and then into the Proposed South Pond. JF Cattle Comprehensive Manure& Wastewater Management Plan 5 AGPROfessionals, LLC 02.17.2003 Pumping to area farm ground dewaters the lagoons. JF Cattle has available approximately 130 acres of center-pivot irrigated land available for application of wastewater. The land application area is located across the ditch to the east (see the Topographic Map in Appendix A). Ground Water Protection The North and Middle Ponds exist and have gone through testing and certification (see reports from Earth Engineering Consultants in Appendix C). Upon expansion of the Middle Pond and completion of the proposed South Pond, the liner will be inspected and certified by a licensed professional engineer to meet a maximum seepage rate of inch per day. Certification reports will be added to this MWMP. Pond Levels The existing stormwater ponds and proposed South Pond will have appropriate pond-level gauges installed. The gauges will show incremental depths as well as the appropriate level to maintain capacity for a 10-year, 10-day storm event. Floodplains AGPROfessionals, LLC, has reviewed the Weld County FEMA maps and concluded that JF Cattle is not located within a mapped 100-year floodplain. Floodplain information is included in Appendix C. Land Application of Stormwater/Process Wastewater Stormwater/process wastewater will be pumped from the ponds onto farm ground in accordance with the Colorado CAFO regulations, "tier two" land application requirements. JF Cattle will have, on site, adequate pumping equipment to dewater the ponds. They can utilize a PTO-driven pump, a floatable pumping system, or an installed permanent pumping system. The primary application area for stormwater/process wastewater is 130 acres of center-pivot irrigated land east of the facility. Two tables were generated to show the land necessary to utilize nutrients from a 25-year, 24- hour, and 10-year, 10-day storm. The nitrogen content and losses are based on Colorado State Cooperative Extension Bulletin No. 568A, Best Management Practices for Manure Utilization. The calculation tables are in Appendix B and are summarized in Table 3 below. Table 3-Land Application Requirements for Design Storms STORM EVENT AMOUNT OF AMOUNT OF SEED- AMOUNT OF SILAGE- STORMWATER CORN REQUIRED TO CORN REQUIRED TO GENERATED DURING UTILIZE NITROGEN IN UTILIZE NITROGEN IN STORM(ACRE-FEET) STORMWATER STORMWATER(ACRES) (ACRES) 25-year,24-hour 14.90 78 93 10-year, 10-day 17.96 94 112 During wastewater application, JF Cattle will monitor the process so that runoff of wastewater does not occur. JF Cattle will utilize tail water structures at the bottom of any flood-irrigated fields during application of wastewater via flood irrigation. JF Cattle does not apply wastewater on frozen ground or during rainfall events. JF Cattle Comprehensive Manure&Wastewater Management Plan 6 AGPROfessionals, LLC 02.17.2003 Average Years' Stormwater / Process Wastewater Application Four, five-year wastewater generation tables can be found in Appendix B. The tables estimate the average annual amount of wastewater to be land applied from the two separate areas and different process wastewater amounts due to different milking-cow populations. The tables estimate land application requirements by maintaining enough capacity to contain a 10-year, 10- day storm. The tables account for the following: • Average monthly precipitation values from local weather data • Average monthly lake-evaporation data from local weather data • Process wastewater generation rates varying from 0 for the main, existing area, 6,670 GPD for 1,000 milk cows to 13,334 GPD for 2,000 milk cows • Evaporation area equal to the appropriate area for the ponds to maintain capacity for a 10- year, 10-day storm • Existing feedlot drainage area of 65.0 acres • Proposed new drainage area of 10.6 acres • Weighted runoff percentage calculated using information from NRCS National Engineering Handbook • Trial-and-error pumping amounts to maintain capacity for a 10-year, 10-day storm The calculation tables are summarized in Table 4 below. Table 4-Average Years' Pumping Amounts with Various Milk-Cow Populations AMOUNT OF LAND APPLICATION TOTAL AMOUNT OF LAND REQUIRED TO MAINTAIN APPLICATION REQUIRED TO MAINTAIN CAPACITY(ACRE-FEET/YEAR) CAPACITY(ACRE-FEET/YEAR) Existing Feedlot 4.9 - Area New Area w/2,000 9.9 14.8 Milk Cows New Area w/ 1,500 6.2 I 1 1 Milk Cows New Area w/ 1,000 2.45 7.35 Milk Cows Three tables were generated to calculate the land necessary to utilize the nutrients from average years' pumping requirements (and varying milk-cow popoulations) in accordance with tier two of the state CAFO regulations. The nitrogen content and losses are based on Colorado State Cooperative Extension Bulletin No. 568A, Best Management Practices for Manure Utilization. The calculation tables are in Appendix B and are summarized in Table 5 below. r JF Cattle Comprehensive Manure& Wastewater Management Plan 7 AGPROfessionals, LLC 02.17.2003 Table 5-Land Requirements for Average Years' Precipitation and Varying Milk-Cow Populations VARYING MILK- AMOUNT OF WASTEWATER AMOUNT OF SEED- AMOUNT OF SILAGE- COW PUMPING REQUIRED CORN REQUIRED TO CORN REQUIRED TO POPULATIONS DURING AVERAGE YEARS UTILIZE NITROGEN IN UTILIZE NITROGEN IN (ACRE-FEET) WASTEWATER(ACRES) WASTEWATER(ACRES) 2,000 Milk Cows 14.80 78 93 1,500 Milk Cows 11.10 58 69 1,000 Milk Cows 7.35 39 46 Sustainability Note that the above calculations take into account organic nitrogen mineralization and residual accumulation for wastewater application on the same fields every year. The calculations utilize an equilibrium mineralization rate for organic nitrogen of 42 percent. This represents the cumulative organic nitrogen released over three years. The previous three tables indicate that JF Cattle has enough available land (130 acres) to assimilate nutrients produced in wastewater year after year. Solid Manure Management JF Cattle manages solid manure through routine pen cleaning and maintenance. Pen density is managed to optimize the surface area and keep cows clean while maintaining solid, dry footing for livestock. JF Cattle cleans pens at least annually. Manure is removed and given away to area farmers for utilization on their lands. JF Cattle limits the amount of stockpiling on site by timing cleaning activities so that manure can be taken off site right away in most cases. Stockpiling areas are noted on the site layout map in Appendix A. Tables located in Appendix B were generated to calculate the amount of manure produced and the associated nutrients on an "as excreted basis". In addition, `as-hauled' weight was calculated accounting for predictable moisture losses. The calculations are based on NRCS Agricultural Waste Management Field Handbook, for various size dairy cattle and varying milk-cow populations. Table 6, below, summarizes the manure generation calculations. Table 6-Manure Production Summary-Varying Milk Cow Populations VARYING CONFIGURATIONS ANNUAL MANURE PRODUCED ANNUAL MANURE PRODUCED (AS EXCRETED BASIS)(TONS) (AS-HAULED BASIS)(TONS) Existing Feedlot Population 103,509 23,002 New Configuration w/500 Milk Cows 97,062 21,569 New Configuration w/ 1,000 Milk Cows 90,616 20,137 New Configuration w/ 1,500 Milk Cows 84,170 18,704 New Configuration w/2,000 Milk Cows 77,724 17,272 Land Application of Solid Manure JF Cattle does not plan to apply solid manure to its own land. They plan to give solid manure away to area farmers for use on the farmers' land. JF Cattle Comprehensive Manure & Wastewater Management Plan 8 AGPROfessionals, LLC 02.17.2003 Nutrient Utilization Nitrogen is the element that most often limits plant growth. Nitrogen is naturally abundant. However, it is the nutrient most frequently limiting crop production because the plant available forms of nitrogen in the soil are constantly undergoing transformation. Crops remove more nitrogen than any other nutrient from the soil. The limitation is not related to the total amount of nitrogen available but the form the crop can use. Most nitrogen in plants is in the organic form and is incorporated into amino acids. By weight, nitrogen makes up from 1 to 4 percent of harvested plant material. Essentially all of the nitrogen absorbed from the soil by plant roots is in the inorganic form of either nitrate or ammonium. Generally, young plants absorb more ammonium than nitrate; as the plant ages the reverse is true. Under favorable conditions for plant growth, soil microorganisms generally convert ammonium to nitrate, so nitrates generally are more abundant when growing conditions are most favorable. Manure and process wastewater is most typically applied for fertilizers and soil amendments to produce crops. Generally, manure and process wastewater is applied to crops that are most responsive to nitrogen inputs. The primary objective of applying agricultural by-products to land is to recycle part of the plant nutrients contained in the by-product material into harvestable plant forage or dry matter. Another major objective in returning wastes to the land is enhancing the receiving soil's organic matter content. As soils are cultivated, the organic matter in the soil decreases. Throughout several years of continuous cultivation in which crop residue returns are low, organic matter content in most soil decreases dramatically. This greatly decreases the soil's ability to hold essential plant nutrients. Land application of JF Cattle's wastewater to recycle valuable nutrients is a practical, commonly accepted best management practice given that fertilization rates are applicable and that deep soil leaching does not occur. Reference material from Colorado State University is included in Appendix D of this CMWMP for use by the operator in making sound decisions pertaining to the land application of process wastewater and/or solid manure. Soil Testing The purpose of soil sampling is to ensure that the quantity of nutrients later applied to the soil will not lead to undesirable nutrient levels in the soil. Knowledge of nitrogen and other nutrients present in the soil, combined with specific crops and realistic yield goals, are key for calculating appropriate manure and/or stormwater application rates. JF Cattle will test soil on land application areas annually using protocol in Appendix E. Irrigation Water Testing JF Cattle will test irrigation water once per year using the protocol in Appendix E. Manure and Stormwater Testing Manure and stormwater testing are essential components of a complete nutrient balance. The amount of nutrients in solid and liquid waste determines the amount that can be land applied agronomically. JF Cattle Comprehensive Manure& Wastewater Management Plan 9 AGPROfessionals, LLC 02.17.2003 JF Cattle will test wastewater and solid manure at least once per year following the protocol in Appendix E. Agronomic Calculations Agronomic rate is the rate at which plants will utilize nutrients while limiting the amount of nutrients that are lost via percolation through the soil or runoff. JF Cattle will perform agronomic calculations for every field upon which wastewater or solid manure is applied. Agronomic calculations take into account: • The crop to be grown • Nitrogen content in irrigation water • A realistic yield goal • Nitrogen credit from previous legume crop; • Total nitrogen required to meet the yield and goal • Plant available nitrogen(PAN) in the • Residual soil nitrate wastewater and solid manure • Soil organic matter Forms for performing agronomic calculation are in Appendix F. One agronomic calculation sheet is used for each field on which wastewater or solid manure is applied. In addition, reference materials from Colorado State Cooperative Extension is located in Appendix D, which includes nitrogen requirement information for corn, wheat and other crops commonly grown in Colorado. Record Keeping JF Cattle will keep records per Table 7 (forms are in Appendix F): Table 7-Record-Keeping Forms&Schedule ITEM FORM USED FREQUENCY OF RECORDING Rainfall Precipitation Log Each event,or more frequently during intense or long-lasting storms Manure/Compost Removal Removal Log Daily during removal Land Application Process Wastewater of Wastewater Application Log Several times per day during application of stormwater Pond Inspection Pond Lagoon Monthly Inspection Form y Limitations AGPROfessionals, LLC, has no control over the services or information furnished by others. This Comprehensive Nutrient Management Plan was prepared and developed in accordance with generally accepted environmental consulting practices. This plan was prepared for the exclusive use of JF Cattle and specific application to the subject property. The opinions provided herein are made based on AgPro Environmental Services, experience and qualifications, and represent AgPro Environmental Services' best judgment as experienced and qualified professionals familiar with the agriculture industry. AGPROfessionals, LLC, makes no warranty, expressed or implied. JF Cattle Comprehensive Manure& Wastewater Management Plan 10 AGPROfessionals, LLC 02.17.2003 Appendix A • Topographic Location Map • Site Layout Map • Soils Map and Detailed Descriptions JF Cattle Comprehensive Manure & Wastewater Management Plan 11 Hello