670001_Plan of Action_20211101

PLAN OF ACTION (POA) FOR LAGOON SLUDGE REDUCTION
Facility Number: �Q1 - d � County: C�f\ 51ovJ
Facility Name: r91
✓VI/r , A G� If. hill c
Certified Operator Operator#: 2
or a
*"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.
Lagoo 1
Lagoon 2
Lagoon 3
Lagoon 4
Lagoon 5
Lagoon 6
a. Lagoon Name/ Identifier
2
b. Total Sludge Depth (ft)
Jc t
c. Sludge Depth to be
Removed for Compliance
ft
d. Sludge Volume to be
Removed (gallons)
• a�
e. Sludge PAN
(Ibs/1000 gal)
f. Liquid PAN
(Ibs/1000 gal)
g. PAN of Sludge (Ibs)
(d x e)/1000
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
DWQ 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, DWQ may require the owner to develop a sludge management plan that meets the
requirements of SB Interagency Group Guidance Document 1.26.
SPOA 3-22-2010 Paoe 1 of 2

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 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: 5 - 3 - Z ) Compliance Due Date:5— _E _ a3
C-- Phone: q( O
Facility Owner/Manag r (print)
Date: Z
(signature)
Return this form to:
Animal Feeding Operations Unit
NC Division of Water Quality
1636 Mail Service Center
Raleigh, NC 27699-1636
SPOA 3-22-2010 Page 2 of 2

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 information on the Lagoon Sludge Survey Form (Items O 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 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.
Example
Your lagoon
1. Average Sludge Layer Thickness m
2.5 ft
S I
2. Depth of lagoon from top of bank to bottom soil surface (D)
11 ft
g
3. Slope = horizontal/vertical side slope (S)
3
3
4. Length at top inside bank (L)
457 ft
L3 r
5. Width at top inside bank (W)
229 ft
ZZ 3
6. Length at midpoint of sludge layer: Lm = L - 2 S (D- (T/2))
398.5 ft
114, r
7. Width at midpoint of sludge layer: Wm = W -2 5 (D - (T/2))
170.5 ft
/pS, S
8. Volume of sludge (Vs): Vs = Lm Wm T
169,860 ft'
G/iG z 1 ,32 rPt�
9. Volume in gallons (Vsg): Vsg = V * 7.5 gal/ft3
1,273,950 gal
10. Thickness of existing liquid treatment zone (Y)
3.5 Ft
/ 8
11. Thickness of total treatment zone (Z): Z = T + Y
6.0 ft
12. Length at midpoint of total treatment zone: Lz = L - 2(S) (D - (Z/2)
409 ft
L S/• i
13. Width at midpoint of total treatment zone: Wz = W - 2(S) (D - (Z/2)
181 ft
79e 9
14. Volume of total treatment zone (Vz): Vz = Lz Wz Z
444,174 ft'
15. Ratio (R) of sludge layer volume to total treatment volume: R = Vs/Vz
If the ratio exceeds 0.50, than a sludge Plan of Action may be required.
Check with DWQ for information on filing the Plan of Action.
0.38
O 17
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:
R = (Vs - DSSV) / (Vz - DSSV)
Example: If DSSV = 85,000 ft', then R = (169,860 - 85,000) / (444,174 - 85,000)
R = 84,860 / 359,174 = 0.24
I

t
Appendix 1. Lagoon Sludge Survey Form Revised August 2008
A. Farm Permit or.DvVQ Identification Number r%, ak4-1 t%Z — O 1
B. Lagoon
C. Person(s) Taking Measurements ffA!4 (— py
D. Date of Measurements Tf Z/
E. Metbods/Devices Used for Measurement of:
a. Distance from the lagoon liquid surface to
from the'lagoon liquid surface to
sludge layer:
lagoon:
c. Thickness of the sludge layer if making a direct measurement with "core sampler":
F. 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 D
b. If more than 1.33 acres, _� acres x 6 = /O 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 Street" (Appendix 2). Also, at the location of
the pump intake, take measurement of distance from liquid surface to top of sludge layer and record it
art the Data Sheet (last row); this must be at least 2.5 ft. when irrigating.
1. At the time of the sludge survey, also measure the distance from the Maximum Liquid Level to the Present
Liquid Level (measure at the lagoon gauge pole): . 1
J. Determine the distance from the top of bank to the Maximum Liquid Level X 7
(use lagoon management plan or other lagoon records)
K. Determine the distance from the Maximum Liquid Level to the Minimum Liquid Level O
(use lagoon management plan or other lagoon records)
L. Calculate the distance from the present liquid surface level to the Minimum Liquid Level D
(Item K minus Item I, assuming the present liquid level is below the Maximum Liquid Level):
M. Record from the Sludge Survey Dam Sheet the distafro,Qt the present liquid surface level to the lagoon
bottom (average for all the measurement points): /• !/
N. Record from the Sludge Survey Data Street the distance from the present liquid surface level to the top of the
sludge layer (average for all the measurement points): 40
O. 'Record from the Sludge Survey Data Sheet the average thickness of the sludge layer . S
P. Calculate the thickness of the existing Liquid Treatment Zone (Item N minus Item L) �s S
Q. If Item O is greater than Item P, proceed to the Worksheet for Sludge Volume and Treatn
If Item O Is hat to or less than Item P, yo o not v to determine volumes. 1
Completed by: Date: Sr 7 L
Ylyrin N gnat re
IL41 I1

Address: 903 Wards Bridge Rd
Warsaw, NC 28398
County: Onslow
LAGOON DESIGN SUMMARY
Checked By:
Date:
6of7
DSE
09/23/15
Top of Dike Elevation -------------------
48.60
FT.
Emergency Spillway Crest Elevation -------------------
Not Apf Applicable
Top of 25Yr. / 241-1r. Storm Storage ------ -------------
47.60
FT.
Top of "Heavy Rain" Storage -------------------
Not
Applicable
Start Pump Elevation ....... —------ _--
46.90
FT.
End Pump Elevation .............. _...
46.60
FT.
Top of Sludge Storage -----------------
Not
Applicable
Seasonal High Watertable Elev.-------------------
0.00
Finished Bottom Elevation ------------------
39.80
FT,
Inside Top Length ---- ------- -----
707.00
FT.
Inside Top Width -------------------
204.14
FT.
Side Slopes ---- --------------
1:1
H:V
Lagoon Surface Area ----------- -------
144,327
SF
Min. Liner Thickness (if required) ------------------
1.5
FT.
Freeboard Depth ----- ----------- —
1.00
FT,
Temporary Storage Period ---- —--- _--------
0 Days
Zone Depths:
TOTAL DESIGN VOLUME = 1057233 (CU.FT.)
Treatment / Sludge Storage Zone Depth ---------- 6.8 FT.
Temporary Storage Zone Depth -------- 0.3 FT.
Freeboard / Storm Storage Zone Depth ----------- 1.7 FT.
Total Lagoon Depth ---------•• 8.8 FT.

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