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HomeMy WebLinkAbout670009_sludge poa_20200810FLA"; OF ACTIO IP�FOR L�000�' SLUDGE �F�UCT10 Facility Number:`9 County: Facility Certified Operator Name: k�FP, fJxK,- Operator #:`�P U "Affach a copy of lagoon Sludge Survey Form and volume worksheets Note: A certified Sludge Management Plan may be submitted in lieu of this POA. Lagoon 1 Lagoon 2 Lagoon 3 Lagoon 4 Lagoon 5 Lagoon 6 a. Lagoon Name/ Identifier b. Total Sludge Depth (ft) J c. Sludge Depth to be Removed for Compliance s (ft) �, d. Sludge Volume to be Removed (gallons) Jcff3 L)0v e. Sludge PAN (Ibs/1000 gal) f. Liquid PAN (Ibs/1000 gal) g. PAN of Sludge (Ibs) (d x e)/1000 /,3f 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 nears 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 -i t �'t r`._,.i._^ E^s� `; •j f fpt 2_ L.,— t £ 2.. td .✓ Fes'. iG .. L'd�-R t �of -E i� �v�� rni s tff fir(( 1 '�5 's; ec- r1 7 % 1r 1 L�/a . . . f . 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: �r� 1 � �G�y � Facility Ownerl anager (print) Facility Owner/Manager (signature) NFIDES Permitted Facilities Return this form to: Animal Feeding Operations Program NC Division of Water Resources 1636 Mail Service Center Raleigh, NC 27699-1636 Compliance Due Date: En/,C State Permitted Facilities Return this form to: Division of Water Resources NC at the appropriate Regional Office (see following page) SPOA 9-15-2016 Page 2 of 3 Length (Top) 190.00 Width (Top) 160.00 Total Depth 10.00 Side Slopes 3 Note: Enter horizontal # for side slopes Liquid Depth (it) 4.00 Example: For 3:1 side slopes, enter 3 Sludge Depth (it) 3.20 Freeboard (it) 1.00 Length Width Lagoon Dims. @ Liquid Level 184.00 154.00 Lagoon Dims. @ Sludge Level 160.00 130.00 Lagoon Dims. @ Bottom 140.80 110.80 Cubic Feet Gallons Liquid Depth 97,888.00 732,202.24 Sludge Depth 58,044.42 434,172.23 Total 155,932,42 1,166,374.47 Date of Analysis Nitrogen Concentration (Broadcast) (Ibs/1000 gallons) Volume (Gallons) lbs. of PAN Liquid 0.72 7325202.24 527.19 Sludge 11.2 4343172.23 4,862.73 Total Copper Concentration (ppm) Liquid 0.07 Sludge 23.80 Total Zinc Concentration (ppm) Liquid 0.29 Sludge 128.00 Total 1,166,374.47 5,389.91 4.62 lbs. PAN Mixed Volume Concentration/1,000 gal 125.48 lbs. per acre -inch Volume (Gallons) 732,202.24 434,172.23 1,166, 374.47 ppm Cu -gallons 51,264.16 10,333,299.11 105384,553.27 8.90 ppm Copper Mixed Volume Concentration Volume (Gallons) ppm Cu -gallons 732,202.24 212,338.65 434,172.23 55,574,045.66 13166,374.47 55,786,384,30 47,83 ppm Zinc Mixed Volume Concentration Nitrogen Conversion Factor For Broadcast Availability Nitrogen (ppm) Conversion Factor Ibs, N/Ac-In, Coeff. PAN/Ac-In PAN/1.000 Gal Liquid 174 0.2266 39.43 0.46 18,14 0.67 Sludge 2237 0.2266 506.90 0.47 238.24 8.77 i pperndits 1, Lagoon Sludge Survey Form Revised August 2008 A. Farm Permit or DWQ Identification Number 67-09 B. Lagoon Identification #1 Brian Raynor C. Person(s) Taking Measurements Donna Wallace/Candice Jarman D. Date of Measurement 6/4/2020 E. Methods/Devices used for Measurement of: a. Distance from the lagoon liquid surface to the top of the sludge layer. 4.4 b. Distance from the lagoon liquid surface to the bottom (soil) of the lagoon. 7.6 c. Thickness of the sludge layer if making a direct measurement with "core sampler". 3.2 Lagoon Surface Area (using dimensions at inside top of bank): (acres) (Draw a sketch of the lagoon on a separate sheet, list dimensions, and calculate surface area. The lagoon may have been built different than designed, so measurements should be made.) G. Estimate number of sampling points: a. Less than 1.33 acres: Use 8 points b. If more than 1.33 ac. acres x 6 = ,with maximum of 24. (Using sketch and dimensions, develop a uniform grid that has the same number of intersections as the estimated number of sampling points needed. Number the intersection points on the lagoon grid so that data recorded at each can be easily matched.) H: Conduct sludge survey and record data on "Sludge Survey Data Sheet" (Appendix 2). Also, at the location of the pump intake, take measurements of distance from liquid surface to top of sludge layer and record it on the Data Sheet (last row); this must be at least 2.5 ft. when irrigating. I. At the time of the survey, also measure the distance from the Maximum Liquid Level to the Present Liquid Level (measure at the lagoon gauge pole): J. Determine the distance from the top of bank to the Maximum Liquid Level (use lagoon management plan or other lagoon records) K. Determine the distance from the Maximum Liquid to the Minimum Liquid level: (use lagoon management plan or other lagoon records) L. Calculate the distance from the present liquid surface level to the Minimum Liquid Level _ (Item K Minus Item I, assuming the present liquid level is below the Maximum Liquid Level) M. Record from the Sludge Survey Data Sheet the distance from the present liquid surface level to the lagoon bottom (average for all the measurement points) N. Record from the Sludge Survey Data Sheet the distance from the present liquid surface level to the top of the sludge layer (average for all the measurement points): O. Record from the Sludge Survey Data Sheet the average thickness of the sludge layer: P. Calculate the thickness of the existing Liquid Treatment Zone (Item N minus Item L): Q. If Item O is greater than Item P, proceed to the Worksheet for Sludge Volume and Treatment Volume. If Item O is equal to or less than Item P, you do not have to determine volumes. Completed by: Donna Wallace Date: 6/10/2020 Print Name /Signature Appendix 2. Sludge Survey Data Sheet* Revised August 2008 Lagoon Identification_ Brian Raynor #1 67-09 Completed by: Print Name Signature Date: 6/1 D12020 (A) Grid Point No. (B) Distance from liquid surface to top of sludge Ft. & in. Ft. (tenths) (C) Distance from liquid surface to lagoon bottom (soil) Ft. & in. Ft. (tenths) (C) (B) Thickness of sludge layer Ft. & in. Ft. (tenths) 1 4 8 4.7 7 8 7.7 3.0 2 3 10 3.8 7 8 7.7 3.8 3 4 5 4.4 7 8 7.7 3.3 4 4 6 4.5 7 8 7.7 32 5 4 6 4.5 7 8 7.7 32 6 4 2 4.2 7 8 7.7 3.5 7 4 6 4.5 7 8 7.7 3.2 8 4 7 4.6 7 8 7.7 3.1 g 0.0 0.0 0.0 10 0.0 0.0 0.0 11 0.0 0.0 0.0 12 0.0 0.0 0.0 13 0.0 0.0 0.0 14 0.0 0.0 0.0 15 0.0 0.0 0.0 16 0.0 0.0 0.0 17 0.0 0.0 0.0 18 0.0 0.0 0.0 19 0.0 0.0 0.0 20 0.0 0.0 0.0 21 0.0 0.0 0.0 22 0.0 0.0 0.0 23 0.0 0.0 0.0 24 0.0 0.0 0.0 Number of points with readings 8.0 X X 8.0 X X 8.0 Average of X 4,3958333 X X 7.6666667 X X 3.270833333 points At pump 0.0 X X X X X X intake *All Grid Points and corresponding sludge layer thicknesses must be shown on a sketch attached to this Sludge Survey Data Sheet. Appendix 3. Worksheet for sludge volume and treatment volume Revised August 2008 The average thickness of the sludge layer and the thickness of the existing liquid (sludge -free) treatment zone are determined from the information on the Lagoon Sludge Survey Form ( Items 0 and P, respectively). In this example, the average sludge layer thickness is 2.5 feet and the existing liquid treatment zone is 3.5 feet. If the lagoon has a designed sludge storage volume, see notes at end of the worksheet. The dimensions of the lagoon as measured and the side slope are needed for calculations of sludge volume and of total treatment volume. If the lagoon is a standard geometric shape, the sludge volume and the treatment volume in the lagoon can be estimated by using standard equations. For approximate volumes of rectangular lagoons with constant side slope, calculate length and width at the midpoint of the layer, and multiply by layer thickness to calculate layer volume, as shown in the example. For irregular shapes, convert the total surface area to a square or rectangular shape. For exact volumes for lagoons with constant side slope, the "Prismoidal Equations" may be used. 1. Average sludge Layer Thickness (T) 2. Depth of the lagoon from top of bank to bottom soil surface (D) 3. Slope = Horizontal/ vertical side slope (S) 4. Length at the top of inside bank (L) 5. Width at top inside slope (W) 6. Length at midpoint of sludge layer Lm= L-2S(D-(T/2)) 7. Width at midpoint of sludge layer Wm W-2S(D-(T12)) 8. Volume of sludge (Vs) Vs=Lm Wm T 9. Volume in gallons: Vs9 V`7.5 galffft . 10, Thickness of existing liquid tmt. zone (Y) 11. Thickness of total treatment zone (Z) Z= T+Y 12. Length at midpoint of total trot, zone L,= L-2(S)(D-(Z/2) 13. Width at midpoint of total tmt. Zone W, = W-2(S)(D-(Z/2) 14. Volume of total treatment zone (Vz) Vz = L, W,Z 15. Ratio ( R ) of sludge layer volume to total Treatment Volume R = Vs/Vz Example Your Lagoon 2.5 ft. 3.2 ft. 11 ft. 10.0 ft. 3 3.0 457 ft. 190.0 ft. 229 ft. 160.0 ft. 398.5 ft. 139.6 ft. 170.5 ft. 109.6 ft. ft 1691860 ' 48.961 ft' 1,273,950 gal. 367,204 gal. 3.5 ft 2.3ft 6 ft 5.5 ft 409 ft. 146.5 ft. 181 ft. 116.5 ft. 4443174 ft' 93,870 ft' 0.38 0.52 If the ratio R exceeds 0.50, than a sludge Plan of Action may be Note: If the lagoon has a designed sludge storage volume (DSSV), subtract that volume from both the volume of sludge (Vs) (Item 8) and from the volume of total treatment zone (Vz) (Item 14), and take the ratio. Then, R = (Vs-DSSV) / (Vz - DSSV) Example: If DSSV = 85,000 ft3, then R = (169,860 - 85,000) / (447,174 - 85,000) = 84,860 / 362,174 = 0.24. 16. Design sludge storage volume (DSSV) 85,000 17. Ratio (R) of sludge layer volume to treatment volume adjusted for designed sludge storage volume 0.24 0.52 /\ \� /3 , � t^