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HomeMy WebLinkAbout310302_poa-lagoon sludge_20200212PLAN OF ACTION (POA) FOR LAGOON SLUDGE REDUCTION Facility Number: AWS310302 County: Duplin Facility Name: Certified Operator Name: 6475-2 Smithfield Operator #: **Attach a copy of Lagoon Sludge Survey Form and volume worksheets Note: A certified Sludge Management Plan may be submitted in lieu of this POA. Lagoon1 Lagoon 2 Lagoon 3 Lagoon 4 Lagoon 5 Lagoon 6 a. Lagoon Name/ Identifier 6475-2 b. Total Sludge Depth (fit) c. Sludge Depth to be Removed for Compliance 3.88 (in) d. Sludge Volume to be Removed (gallons) 98,758 e. Sludge PAN (Ibs./1000 gal) 10 f. Liquid PAN (Ibs./1000 gal) 2 g. PAN of Sludge (Ibs.) (d x e)/1000 987.58 Compliance Timeframes: If the sludge level is equal to or higher than the stop pump level of the lagoon or if the sludge level results in an elevated waste analysis, a sludge management plan that meets the requirements of SB Interagency Group Guidance Document 1.26 must be prepared by a technical specialist and submitted to DWR within 90 days. Work to reduce the sludge level must begin within another 180 days. Compliance with NRCS Standard 359 must be achieved within two years of the original sludge survey. If the sludge level is non -compliant but below the stop pump level of the lagoon, a POA must be filed within 90 days and compliance with NRCS Standard 359 must be achieved within two years of the original sludge survey indicating non-compliance. If future sludge surveys do not show improvement in sludge levels, DWR may require the owner to develop a sludge management plan that meets the requirements of SB Interagency Group Guidance Document 1.27. SPOA 9-15-2016 Page 1 of 3 NARRATIVE: Use this section to describe the method(s) that will be used to lower the sludge depth. If microbe use is planned, specify the product to be used. 1) Sludge Management Plan (In accordance with NRCS Standard 359, Sludge Management Guidance): Continue current lagoon management and monitoring of sludge as long as: A) the sludge level is less than the stop pump level of the lagoon, B)nutrient values of the lagoon effluent are within the normal operating range, C) there is no noticeable increase in lagoon odor, D)a minimum 2.5 ft deep zone, free of sludge, at the pump intake is maintained, and E) nutrients applied from lagoon are properly accounted for in the application plan (NUP). 2) Sludge Removal- Within 90 days of not maintaining the items listed in the above sludge management plan, one of the following options will commence: A) Mechanical Removal by Pump and Haul - a sludge utilization/application plan will be developed that identifies land in the vicinity of the lagoon that will allow for the application of the agitated/mixed sludge layer of the lagoon. Implementation of the plan will commence within another 180 days. Records will be kept of these applications as required by the permit. B) Mechanical Removal by Dewatering - sludge will be removed by dredge or lagoon agitator pump then mixed with polymer and pumped into geotextile tubes (bags) for dewatering, as outlined in the Management Plan of the Distribution of Animal Residuals Solids Permit, #WO0037487. After curing for approximately 6 months solids will be distributed within 2 years either i) as a Class A material in accordance with permit #WO0037487, or ii) if the solids do not meet Class A standards, in accordance with a sludge utilization/application plan for land application. I hereby certify that I have reviewed the information listed above and included within the attached Plan of Action, and to the best of my knowledge and ability, the information is accurate and correct. I further certify and acknowledge that compliance with regard to sludge accumulation must be achieved within two years of the original sludge survey indicating non-compliance. Sludge Survey Date: 2/12/2020 Compliance Due Date: 2/12/2022 Smithfield FaciiliJlJy/J�lwner/M a r nnt) `,, � r Facility Owner/Manager (signature) NPDES Permitted Facilities Return this form to: Animal Feeding Operations Program NC Division of Water Resources 1636 Mail Service Center Raleigh, NC 27699-1636 Phone: 910-293-3434 Date: State Permitted Facilities Return this form to: NC Division of Water Resources at the appropriate Regional Office (see following page) SPOA 9-15-2016 Page 2 of 3 Smithfield, JGood {ooA.'Rvsponsibl�® Sonar Sludge Survey Reporting Form Farm or Permit Number: Lagoon I.D. Number: Person taking measurements: Date of Measurements: Methods/Devices used for measurement of: Number of measurement data points: Staff Sonar Distance from the present liquid level to the top of sludge: A. Start Pump Level: B. Stop Pump Level: C. Current Freeboard Level: D. 1/2 Treatment Level: E. Average Sludge Level: If pump intake level is <2.5 ft a plan of action is required. If value for E is greater than D then sludge levels are in Compliance. AWS310302 If value for E is equal to or less than D then a Plan of Action is required. 6475-2 2/12/2020 186 3.46 feet 20.40 inches 48.00 inches 44 inches 89.40 inches 85.52 inches 3.9 feet Volume of sludge to be removed to reach compliance 98,758 Gallons 33 Dry Tons Completed by: Michael Norris '�`�' Print Name Signature ud Le Retention: 5 years Original: 5/21/19