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HomeMy WebLinkAbout310404_Waste Utilization Plan_20240807Mike Kennedy Farm Closure slzvza This plan has been prepared for: I This plan has been developed by., Mike Kennedy Faun NCOWS DSWC Mike Kennedy Michael Shepherd 345 Kennedy Lane 791 S. Main St Pink Hill NC 28572 Mocksville, NC 27028 336-940-8901 7,kce� 5 Developer Signature Type of Plan: Nutrient Management with manure Only Owner/Manager/Producer Agreement i (we) understand and agree to the specifications and operation and maintenance procedures established in this nutrient management plan which includes an animal waste utilization plant for the faun named above. i have read and understand the Required Specifications concerning animal waste management that are included with this plan. �ignature (owner) Signature (manager or producer) Date This plan meets the minimum standards and specifications of the U.S.Department of Agriculture - Natural Resources Conservation Service or the standard of practices adopted by the Sail and Water Conservation Commission, Plant Approved By: Tecnnicat Specialist Signature Data Waste Facility Closure Plan Mike Kennedy Farm, AWS310404 345 Kennedy Ln, Pink Hill, NC 28572 This plan is for the closure of the swine lagoon structure located at Mike Kennedy's farm, AWS310404, in Duplin County, NC. The planned closure of the structure will implement new technologies to handle both the sludge and liquid swine waste other than the typical land application of the waste. The closure of the lagoon will comply with Federal, State and Local laws and rules. Introduction The Mike Kennedy Farm is located off Kennedy Lane, approximately 0.6 mile west of NC HWY 241 (Appendix 1 -Mike Kennedy Vicinity Map). The waste storage lagoon was certified in 1996 by Murphy Family Farms Engineering and has an approximate surface area of 61,593 square feet. The total estimated waste volume in the lagoon is 1,400,101 gallons of liquid and 1,124,676 gallons of sludge for a total volume of 2,524,777 gallons (Appendix 2, Mike Kennedy Estimated Waste Volumes, Duplin Soil and Water Conservation District). Swine and Dairy Assistance Program (SDAP) Mike Kennedy Farm contacted the Duplin Soil and Water Conservation District (SWCD) and the NC Department of Agriculture to participate in the Swine and Dairy Assistance Program (SDAP) to close the waste structure. The SDAP requires all closure to be completed according to NRCS Conservation Practice Standard 360, Waste Facility Closure. Erosion and Sediment Control All disturbed areas will be re -vegetated to restore the aesthetic value and prohibit erosion of the site. Duplin Soil and Water Conservation District will recommend vegetative materials in accordance with NRCS Practice Standard Code 342, Critical Area Planting once final units are determined. Liquid and Sludge Waste Removal The liquid and sludge in the lagoon will be removed using alternative closure methodologies to separate the liquid and solids and allow the solids to undergo further processing and distribution. To start, the total contents of the lagoon will be agitated to create a slurry. The slurry will then be pumped to a Sky Pump Truck. From there the slurry will be pumped to a drying plant set up on the side of the lagoon where the sludge will be dewatered using shakers and presses to approximately 18% moisture. All liquids will be returned to the lagoon. Once dewatered, the sludge will be conveyor belted to awaiting trucks and transported offsite to a state permitted facility for further processing. Agreement with the state permitted processor, Mirimichi Green, to receive the sludge is included in appendix 3. Impoundment Closure The landowner intends to convert the lagoon to a freshwater pond. The structure shall be converted to meet the NRCS Practice Standard 378, Pond. The emergency spillway has been surveyed and designed by the Division of Soil and Water Conservation engineer (Appendix 4, Mike Kennedy Final Spillway Design). The design engineer shall be contacted prior to installation of the spillway and then once the spillway is installed according to the design. The final conversion will be documented with an As -Built survey showing dam and spillway dimensions. All disturbed areas will be seeded/mulched per NRCS Practice Standard 342, Critical Area Planting. All waste transfer components will be removed from the facility and replaced with compacted earthen materials or rendered unable to convey waste. At this time, it is not known whether swine buildings will be removed or re -purposed after closure is complete. Nevertheless, all infrastructure from the hog barns to the lagoon will be disconnected. NRCS 360 Alternative Method of Closure Requirements NRCS Conservation Practice Standard 360, Waste Facility Closure sets requirements for decommissioning of lagoons that shall be met to satisfy SDAP policy requirements. The lagoon closure at Mike Kennedy farm will be intended to fulfill the requirements of the alternative method of closure within the Waste Facility Closure 360 CPS. To meet these requirements, the following thresholds shall be reached: • Once all of the sludge has been dewatered and removed, a survey of the lagoon shall be conducted on a 25 foot grid or closer by a representative from the Division of Soil and Water Conservation. The results of the survey shall indicate no more than 0.2 foot of sludge and signed by Technical Specialist with the SD or SI designation. • Once all of the sludge has been removed, a liquid waste sample shall be taken by a representative from the Division of Soil and Water Conservation and analysis performed by the NCDA&CS Agronomics laboratory. Results of the analysis shall indicate no more than 40 parts per million of total Nitrogen. All thresholds described above will conform to the standards consistent with the NRCS Practice Standard 360, Waste Impoundment Closure. If the thresholds listed above are not met, additional sludge shall be removed and/or the liquid waste shall be land applied. Additional Supporting Materials Attached as part of this closure plan: Appendix 1 -Mike Kennedy Vicinity Map Appendix 2- Mike Kennedy Estimated Waste Volumes (Duplin Soil and Water Conservation District) Appendix 3— NC Permitted Post Processing Facility Agreement to receive sludge from Mike Kennedy Appendix 4— Mike Kennedy Final Spillway Design Attachment 1 - Mike Kennedy Vicinity Map a 1 R Mike Kennedy Farm SDAP ow ike Ke aim y �A A sare.tcta P kil rt. .'1p�ogI Earth a I ir j 4 f` Y may' A Google Earth N 300ft Attachment 2 - Mike Kennedy Estimated Volumes (Duplin Soil & Water Conservation) Lagoon Survey Map Date:9/19/2023 Customer(s): Mike Kennedy District: DUPLIN SOIL & WATER CONSERVATION DISTRICT Legend ROADS A'S 100 Dbma, w6u t ce, 1! Field Office: KENANSVILLE SERVICE CENTER Agency: Duplin Soil & Water Assisted By: C. Smith DUPLIN COUNTY SOIL & WATER N 0 100 20F Feet Mike Kennedy Suvey Readings Total Depth 8.70 8.90 9.00 8.60 8.60 8.60 8.60 9.10 8.8 Mike Kennedy TOO Readings Tan of Sludge 4.20 5.30 6.80 2.80 3.60 4.20 2.00 4.50 4.2 oev &0.5'i rr w)10.5a S 3 E'er Sludge Depth 4.50 3.60 2.20 5.80 5.00 4.40 6.60 4.60 4.6 a;Ke, sle4@-bv4rludge y7.WL g. �2� go{lo.n -fb-}aL, 'Dew 55. �7- 1 z 321�. �DteP /23 LAGOON CLOSURE VOLUMES Farm Name: Mike Kennedy County: Duplin Prepared by: A. Quinn Date: 9/21 /2023 Temporary benchmark description & elevation: 6.30 Input cells shown as Lagoon top lengt 383.00 Lagoon top elev. (ft) 55.42 top section Top of liquid elev. (ft) 51.92 Top of sludge elev. (ft) 47.72 Lagoon bottom elev. (ft) 43.12 i------------------_-----_ � mid section Lagoon top width (ft) 161.00 i Side slope (_ 1) 3 i lagoon bottom LAGOON LIQUID VOLUME Dimensions at liquid surface: _ Length = 362.00 ft Width = 140.00 ft Depth = 4.20 ft Volume in Cubic Feet = 187,179 cubic feet Add 20% for washdown Volume in Gallons = 1,400,101 gallons 504,955.39 gallons 3,029,732 TOTAL Top = 50680 sq ft _ _ Mid = 44513.56 sq ft 349.40 ft X 127.40 ft Bottom = 38664.64 sq ft 336.80 ft X 114.80 ft LAGOON SLUDGE VOLUME Dimensions at sludge surface Length = 336.80 ft Width = 114.80 ft Depth = 4.60 ft Volume in Cubic Feet = 150,358 cubic feet Volume in Gallons = 1,124,676 gallons Top = 38664.64 sq ft Mid = 32623 sq ft 323.00 ft X 101.00 ft Bottom = 26962.24 sq ft _ 309.20 ft X 87.20 ft _ Total Volume in Cubic Feet = 337,637 cubic feet Total Volume in Gallons = 2,524,777 allons Farm Name: Mike Kennedy Landowner County: Duplin VOLUME TO BE REMOVED Length (Top) Width (Top) Total Depth Side Slopes Liquid Depth (ft) Sludge Depth (ft) Freeboard (ft) 383.00 161.00 12.30 3 4.20 4.60 3.50 Note: Enter horizontal # for side slopes Example: For 3:1 side slopes, enter 3 12.30 Survey Waste Length Width Add 20% for washdown Lagoon Dims. @ Liquid Level 362.00 140.00 504,955.39 Lagoon Dims. @ Sludge Level 336.80 114.80 3,029,732.33 Lagoon Dims. @ Bottom 309.20 87.20 Liquid Sludge N Value from Waste Sample Ibs/1000 gallons P Value From Waste Sample Ibs/1000 gallons Cubic Feet Gallons Liquid Depth 187,179.22 1,400,100.54 Sludge Depth 150,357.81 1,124,676.40 Total 337,537.02 2,524,776.94 Design SURVEY Top of Dike Elevation 109.00 Freeboard 3.50 Bottom of Lagoon Elevation 98.50 Avg Depth 8.8 Depth of Lagoon From Design 10.50 12.30 Field Data 10.52 TBM 60.52 HI 8.60 Water Level 51.92 elev @ W/L 50.00 Elevation 5.10 lowest pt on dike 55.42 elev @ Top of Dike 43.12 Bottom Elev 47.72 Top of Sludge Elev 4.60 sludge Depth 3.50 free board Calcu laficava q12-1 J23 Attachment 3 - NC Permitted Post Processing Facility Agreement to Receive Sludge from Mike Kennedy Farm NC. MIRIMICHI GREEN - Activate Nature August 5, 2024 To Whom it may concern, We intend to receive The sludge product from Mike Kennedy's farm in Pink Hill Mirimichi Green, permit number WO 0039183. Best regards, Web Cowden - COO Mirimichi Green Express, LLC Mirimichi Green Express, LLC / 418 Hermitage Rd. Castle Hayne, NC 28429 / 910-602-1681 (Office) / 910-602-1685 )Fax) w-mirimichigreen.com Attachment 4 - Mike Kennedy Final Spillway Design TBD - Mike Kennedy Final Spillway Design USDA United States Department of Agriculture 360-CPS-1 Natural Resources Conservation Service CONSERVATION PRACTICE STANDARD WASTE FACILITY CLOSURE CODE 360 (no) DEFINITION The decommissioning of a facility where agricultural waste has been treated or stored, and is no longer used for the intended purpose. PURPOSE The practice is implemented to — Protect the quality of surface water and groundwater resources • Mitigate air emissions. • Eliminate a safety hazard for humans and livestock. • Safeguard the public health. CONDITIONS WHERE PRACTICE APPLIES This practice applies to an agricultural waste facility or livestock production site that is no longer needed as a part of a waste management system and is to be permanently closed or converted for another use. These facilities include liquid/dry waste storage or treatment facilities, confined animal housing, feedlots, livestock yards, and animal mortality or composting facilities. This practice applies where impoundments that are to be converted to fresh water storage meet the current NRCS conservation practice standard to which the impoundment is proposed to be converted. This practice applies to rehabilitation of soil contaminated by agricultural wastes that have been stored or treated onsite. This Practice does not apply to an agricultural waste facility that will be expanded or rehabilitated. Use NRCS Conservation Practice Standards (CPSs) Waste Storage Facility (Code 313) or Waste Treatment Lagoon (Code 359), respectively, for rehabilitated or expansion of an existing waste storage facility or treatment lagoon. This practice does not apply to the demolition of components such as confined animal housing, feedbunks, or fencing. Use NRCS CPS Obstruction Removal (Code 500) for structures not directly transferring or controlling manure to waste facility. This Practice does not apply to sites contaminated by materials that require the issuance of a hazardous waste permit, such as fuel or pesticides. NRCS reviews and periodically updates conservation practice standards. To obtain the current NRCS, NC version of this standard, contact your Natural Resources Conservation Service State office or October 2023 visit the Field Office Technical Guide online by going to the NRCS website at https://www.nres.usda.gov/ and type FOTG in the search field. USDA is an equal opportunity provider, employer, and lender. 360-CPS-2 CRITERIA General Criteria Applicable to All Purposes All Federal, State, and local laws, rules, and regulations, including National Pollutant Discharge Elimination System (NPDES) requirements, shall be adhered to during the closure of a waste facility. Waste transfer components that convey waste materials to a treatment or storage facility and facility components that provide drainage from the waste facility shall be removed. Replace transfer components with compacted earth material or otherwise render transfer components unable to convey waste. To the maximum extent practicable, remove all agricultural waste and associated materialsthat could negatively affect water or air quality, or pose a safety hazard. Utilize all liquid, slurry, sludge and solid waste, and soil removed from the facility in accordance with NRCS CPS Nutrient Management (Code 590). Use precautions (fencing and warning signs) where necessary to ensure that the facility is not used for purposes incompatible with the facility modification. Erosion and pollution control For facilities that receive surface runoff flows including flows generated within the facility footprint, soils and hydrology analysis shall be completed to quantify expected runoff and plan/design appropriate water, erosion, and grade stabilization controls. Revegetate or treat all disturbed areas with other suitable measures used to control erosion and restore the aesthetic value of the site. Treat areas not suitable for revegetation through normal cropping practices in accordance with applicable NRCS erosion, grade, and water control CPSs including but not limited to Grade Stabilization Structure (Code 410), Grassed Waterway (Code 412), Diversions (Code 362), Mulching (Code 484), and Critical Area Planting (Code 342). Liquid and slurry waste removal Agitate and pump all liquid and slurry wastes to the maximum extent practicable. Add water as necessary to facilitate the agitation and pumping. Utilize the wastewater in accordance with NRCS CPS Nutrient Management (Code 590). If the bottom of the lagoon or structure at the actual time of closure will support earth -moving equipment, it must be scraped. Soil stability for earth -moving equipment shall be determined and documented at the actual time of closure by an NRCS qualified Engineer, or an NRCS qualified Technician, or a state qualified technical specialist. For lagoons or structures that are not to be scraped due to documentation that the bottoms will not support earth -moving equipment as determined at the actual time of closure, the depth of "agitated" waste material remaining in the lagoon or structure at the actual time of closure may not exceed a maximum depth of one (1) foot. An NRCS qualified Engineer, or an NRCS qualified Technician, or a state qualified technical specialist shall verify and certify the sludge has been satisfactorily removed." Sludge removal During sludge removal operations, the integrity of the liner shall be maintained, if one is present. Remove sludge to the maximum extent practicable and utilize in accordance with NRCS CPS Nutrient Management (Code 590). Impoundment closure Three options are associated with the decommissioning of liquid waste impoundments. Use one of the following options. Breach embankment impoundments Embankment impoundments (those with a depth of water at the design water level of 3 feet or more above natural ground) may be breached so that they no longer impound water. Liquid sludge waste shall be removed from the impoundment before breaching the embankment. Grade the embankment material into NRCS, NC October 2023 360-CPS-3 the impoundment area, and vegetate the area for another use or retain the embankment if the impoundment area surface has been sufficiently cleaned so that runoff leaving the site would not be considered contaminated by the wastes. Remove concrete, pipe appurtenances, and flexible membrane liners or render the membrane liner unable to impound water. Properly dispose of removed concrete, pipe, and membrane liner materials. Design stable side slopes and bottom of the breach for the soil material involved. Three horizontal to one vertical (3:1) is the steepest side slope allowed for a finished breach slope. Backfill excavated impoundments Excavated impoundments may be backfilled so that the area is unable to impound water and may be reclaimed for other uses. Liquid and sludge waste shall be removed from the impoundment prior to backfilling. Remove and properly dispose of concrete, pipes,flexible membrane liners, and any other structures or materials associated with the impoundment. Backfill the excavated area to a design height a minimum of five percent above the finished grade to allow for settlement. Construct the top 1 foot of the backfill using the most impervious soil material readily available and mound the fill to shed precipitation runoff without causing erosion. Incorporate available topsoil where feasible to aid the establishment of vegetation. Conversion to fresh water storage Converted impoundments shall meet the requirements as set forth in the appropriate NRCS CPS (e.g. Pond (Code 378)) for the intended water storage purpose. Use the National Engineering Manual (NEM), Section 501.23 for the investigation of structural integrity if the original impoundment was not constructed according to NRCS standards. Liquid and sludge waste shall be removed from the impoundment prior to conversion. When it is not practical to remove the sludge from a waste impoundment that is being converted to fresh water storage, the impoundment must not be used for fish production, swimming, or livestock watering until the water quality is adequate for these purposes. Alternate Method of Closure There are existing lagoons/structures that may be closed by the following alternate method. This alternative closure process consists of vacuum dredging the sludge and leaving the liquid. Lagoons/Structures which have a liquid waste analysis of more than 40 parts per million of total N before sludge removal cannot be closed by this alternate method. Locations on the lagoon/structure bottom where sludge is 0.2 foot or greater must be dredged. Where the sludge is less than 0.2 foot in depth, dredging is not required. Sludge must be removed to the maximum extent practicable on the slopes, but in no case shall there be more than 0.2 ft. of sludge in the bottom when finished. The lagoon/structure must be converted to fresh water storage. Spillways, if required under this standard, must meet the requirements of the Pond Conservation Practice Standard (Code 378) and have adequate soils and hydrology analysis to properly design structure appurtenances including but not limited to principal and auxiliary spillways. Required documentation for the above criteria includes: A liquid waste analysis performed by the North Carolina Department of Agriculture & Consumer Services (NCDA&CS) or other accredited lab. The sample shall be taken by Division of Soil and Water Conservation (DSWC) staff, Division of Water Resources (DWR) staff, or NRCS staff with a WUP/NM designation as a technical specialist. A survey of the lagoon/structure showing the bottom elevation and depth of sludge before and after dredging using a "sludge judge" or other measuring device made for this purpose, on a 25 foot grid, or NRCS, NC October 2023 360-CPS-4 closer, if needed to show true size and volume of sludge. The survey and volume computations shall be signed by a technical specialist with the SD or SI designation. A representative from Division of Water Resources(DWR), Division of Soil and Water Conservation (DSWC), or an NRCS qualified Engineer, or an NRCS qualified Technician must verify that the sludge has been satisfactorily removed. Fabricated liquid waste facilities Fabricated liquid waste facilities must be demolished, disassembled, or otherwise altered so they no longer impound water. Temporarily store disassembled materials such as pieces of metal, concrete, etc., in such a manner that they do not pose a hazard to animals or humans. Bury demolished materials onsite or move material offsite to locations designated by State or local officials. If buried onsite, cover the materials with soil to a settled depth of at least 2 feet. Backfill finished grade must exceed the finished design height by a minimum of five percent to allow for settlement. Mound the backfill sufficiently to divert runoff from the site after the backfill settles. Dry waste storage or treatment facilities Remove walls and other structural members or otherwise render the site unsuitable for stacking or treating waste. Determine the depth of soil remediation by evaluating the soil at dry waste facilities such as confined animal housing, feedlots, livestock yards, or composting facilities with earthen floors. Include laboratory analyses of the soil profile in the evaluation for any nutrients needed to determine the required depth of rehabilitation. Take soil samples at multiple locations and depths within the facility. Take one sample per depth interval per acre, of the area being decommissioned with a minimum of three samples per depth interval. Samples taken for each specified sampling depth interval may be consolidated into a single set (e.g., three samples taken at the 0-to 6-inch-depth interval may be consolidated into a single sample for testing). Collect, prepare, and test soil samples in accordance with NRCS CPS Nutrient Management (Code 590). Use the results of the soil analysis to prepare a plan to recover the site for its intended use. Utilize the following site appropriate options, if needed: • Adjust pH to restore desired crop growing conditions. • Plant salt -tolerant plants to restore the site to desired crop conditions. Monitor the harvested vegetation for nitrogen, phosphorus, and potassium removal. • Select plants and erosion control practices to minimize phosphorus transport from the site and facilitate remediation of excessively high phosphorus levels. Although in -situ processes are the preferred method for adjusting the soil conditions, removal of a portion of the soil may be necessary. Land apply the removed soils in accordance with NRCS CPS Nutrient Management (Code 590). Grade or backfill the excavated areas to shed rainfall and prevent ponding of runoff. Where feasible, use available topsoil to aid in the establishment of permanent vegetation. CONSIDERATIONS Where practical, conduct preclosure soil and water (surface and subsurface) testing to establish baseline data surrounding the site at the time of closure. Establishing baseline data can be used in the future to address soil and water issues. Where a dense mat of floating vegetation covers the surface, reduce pumping effort to empty waste impoundments by first applying herbicide to the vegetation and then burning the residue. Obtain appropriate permits before burning. When conducting burning, take necessary actions to ensure that smoke is managed to minimize impacts to downwind populations. NRCS, NC October 2023 360-CPS-5 Alternative methods of sludge removal may be required where the impoundments contain large amounts of bedding, oyster shells, soil, or other debris. Minimize the impact of odors associated with land -applying dry wastes or with agitation, emptying, and land -applying wastewater and sludge from a waste impoundment by conducting these operations at a time when the humidity is low, when winds are calm, and when wind direction is away from populated areas. Adding chemical and biological additives to the waste prior to agitation and emptying can reduce odors. Odor impacts from land application can also be mitigated by using an incorporation application method. Minimize agitation of the wastes to only the amount needed for pumping to reduce the potential for release of air emissions. Soil used to fill excavated areas should not come from important farmlands such as prime, statewide, local, or unique farmlands. If testing of soil around the facility indicates a need for remediation, use an appropriate NRCS CPS for planning and implementation. A breached embankment may detract from the overall aesthetics of the operation. Remove the embankment and return the site to its original grade. Disassembled fabricated structures may be suitable for assembly at another site. Take care during closure to minimize damage to the pieces of the facility, particularly coatings that prevent corrosion of metal pieces. Take measures during closure activities to minimize site erosion and pollution of downstream water resources. This may include such items as silt fences, haybale barriers, temporary vegetation, and mulching. To minimize potential impacts to livestock, such as nitrate poisoning, initiate a testing and monitoring program of nutrient levels in crop products, particularly livestock feeds, harvested from sites of closed animal confinement facilities. Consider revegetating using species or diverse mixes that are native or adapted to the site and have multiple benefits. Native species may be used when appropriate for the site. To benefit pollinators and other wildlife, flowering shrubs and wildflowers with resilient root systems and good soil -holding capacity also should be considered for incorporation as a small percentage of a larger grass -dominated planting. Where appropriate consider a diverse mixture of forbs to support pollinator habitat. PLANS AND SPECIFICATIONS Prepare plans and specifications that describe the requirements for applying the practice to achieve its intended use. As a minimum, include— • A plan map showing the location and extent of the practice. • NRCS Job Classification for each planned conservation practice and an overall project job classification • A plan view of the layout of the waste facility's existing grade and final design grade including topographic elevations and locations of survey benchmarks. • Typical profiles and cross sections of the site as needed. These shall include original and planned grades. • Structural drawings including pipes and grade stabilization structures, details, and notes adequate to describe the construction requirements. • Requirements for erosion, grade, and water control measures and structures as needed. This may include details for (but not limited to) Grade Stabilization Structures (Code 410), Grassed NRCS, NC October 2023 360-CPS-6 Waterways (Code 412), Diversions (Code 362) Mulching (Code 484), Critical Area Planting (Code 342). For vegetative establishment, list species, planting dates, densities, planning procedures, amendments, etc. • Pertinent elevations of the closed facility and excavation limits. • Number, capacity, and quality of facility and estimate of soil and waste volume to be moved. • Estimate of demolition quantities (concrete, etc.) to be removed or buried. • Location of known utilities. • Requirements for salvage and disposal of structural materials. • For facilities that receive any surface runoff flows including flows generated within the facility footprint, hydrologic analysis shall be completed to quantify expected runoff and plan/design appropriate erosion, grade, and water control designs. • Hydraulic design documention for any water control structures associated with closure. • Vegetative requirements. • Waste utilization plan for animal wastes and soil. • Copy of the liquid and sludge waste analysis performed by the North Carolina Department of Agriculture & Consumer Services (NCDA&CS) or other accredited lab. • Copy of the sludge survey analysis conducted indicating liquid and sludge volumes to be removed. • Copy of soils sample reports for each application location. • Copy of PLAT results for each application location. • Odor management or mitigation requirement. • Safety plan requirements. Note: Per Occupational Safety and Health Administration (OSHA) confined space entry protocol, there will be NO entry of personnel into the confined space of an enclosed waste facility without breathing apparatus or taking other appropriate measures. OPERATION AND MAINTENANCE Develop an operation and maintenance plan that is consistent with the purposes of the practice, its intended life, safety requirements, and the criteria for its design. The proper decommissioning of a waste facility and rehabilitation of any contaminated soil a waste facility requires little or no operation and maintenance. For the conversion of a waste facility to any other use, such as a fresh water facility, the operation and maintenance will be in accordance with the appropriate NRCS CPS for the intended facility conversion purpose. REFERENCES Rice, J.M., D.F. Caldwell, and F.J. Humenik. Ed. 2006. Closure of Earthen Manure Structures in Animal Agriculture and the Environment: National Center for Manure and Animal Waste Management White Papers, pp. 263-282. ASABE. Pub. Number 913C0306. NRCS, NC October 2023 360 NC IR Waste Facility Closure: State Permitted Post - Processing 2024 Jul. 2024 Background: Increased implementation of conservation practice standard (CPS) 360 Waste Facility Closure - lagoon closures, the corresponding number of CPS 590 Nutrient Management plans, and challenges with finding available land for direct application of raw, lagoon materials, has created opportunities for the development of value-added, post -processing of lagoon closure by- products. In North Carolina, state, federal, and non-federal partners have provided funding for the development of technologies, methodologies, and systems for utilizing manure and raw lagoon materials, and creating market -viable, value-added by-products. North Carolina has traditionally been very pro -active in establishing guidelines and regulations for the handling of animal manures. Therefore, operations involved with post -processing of lagoon materials should be approved by and working under state regulatory and permitting authorities (e.g. NC Dept. of Environmental Quality). These types of processors will be referred to as "state permitted post -processors". Conservation Practice Standard (CPS) 360/590 and Role of State Permitted Post -Processors: When state permitted post -processors are part of a CPS 360/590 lagoon closure plan/design/implementation (i.e. all or some of the lagoon materials are utilized by a post - processing facility), the CPS 360/590 plans shall include: 1) Registered name of the state permitted post -processor and facility location. 2) State agency with approval and permitting authority (i.e. state permitting agency(ies)); include permit identification if applicable. 3) Planned input volume and characteristics of CPS 360 generated materials. 4) Expected final product characteristics and quantities. When post -processed water is a product of an approved and permitted post -processing methodology, water quality shall be tested by an approved lab. When the water's total N is less than 40 ppm and all other tested compounds/elements are below recognized hazardous levels of concentration, such post -processed water may be utilized to refill lagoons that are approved for conversion to fresh -water storage. This shall also be documented in the CPS 360 design documentation and the CPS 590 nutrient management plan. Planners shall ensure the identified post -processors are under current purview of state regulatory agencies. All current CPS 360 and CPS 590 criteria remain applicable and are expected to be met or exceeded. Under these conditions, the use of state permitted post -processors are an acceptable component of CPS 360/590 plans.