100036_Sludge Survey (Reporting)_20231001

RECEIVED
OCT 0.12023
Agriment Services, Inc.
4y►►� jvLagoon Sludge Survey Form
Ca tral Sice
A. Farm Permitor DWO Identification Number f _
Revised August 2008
10-36
B. Lagoon Identification: )P- Mark Green (Sow) 2
C. Person(s) taking Measurements: lo. _ Brent Rhodes
D. Date of Measurements: > _ 11/21/2022
E. Methods/Devices Used for Measurement of:
a. Distance from the lagoon liquid surface to the top of the sludge layer. '` Sonar Boat
b. Distance form the lagoon liquid surface to the bottom soil of lagoon: Range Pole
c. Thickness of the sludge layer if making a direct measurement with "core sampler": n/a
F. Lagoon Surface Area (using dimensions at inside to of bank): ---> _ 3.90
(Draw a sketch of the lagoon on 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 acre, use 8 points: _
b, If more than 1.33 acre, surface area acres x 6 = sampling points, with a maxium Doff 23
24:
(Using sketch and dimensions, develop a uniform grid that has the same number of intersection 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 measurement 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 fL when irrigating.
I At time of sludge survey, also measure the distance from the Maximum Liquid Level to the Present
Liquid Level (measure at the lagoon gage pole): - - - 2-09J. _.
Determine distance from top of bank to the Maximum Liquid Level
(use lagoon management plan or other lagoon records): - - - 1.58
K. Determine distance from Maximum Liquid Level to Minimum Liquid Level
(use lagoon management plan or other lagoon records): -r - 2.00
L. Calculate distance from present liquid surface level to Minimum Liquid Level
(item K - Item I, assuming present liquid level is below Max. Liq. Level): - -0.09
M. Record from sludge survey data sheet the distance from the present liquid surface level to the
lagoon bottom (average for all the measurement points): 9.83
N. Record from 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): 4•52
O. Record from sludge survey data sheet the average thickness of the Sludge Layer. 5.31
P. Calculate the thickness of the existing Liquid Treatment Zone (hem N - Item L): 4.61
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: Ronnie G. Kennedy .-
Print Name — Signa#U
1 of 3

RECEIVED
OCT 01208 Agriment Services, Inc.
NC DEepg?MIx 2. Sludge Survey Data Sheet
Central Office
Lagoon Identification: Mark Green (Sow) 2 Date:
Completed by: _ Ronnie G. Kennedy
Print Name
(A) _(B) (C)
Distance from liquid surface to Distance from liquid surface to
Grid Point top of sludge lagoon bottom (soil)
No.
Feet (tenths) Feet (tenths_)
1
2
3
4
5
6
7
8�
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
# of points
withreading
Average of
At pump
5049
4.52
3.00
x
9.83
x
Revised August 2008
11/21/2022
.el
t
(C) - (B)
Thickness of sludge layer
Feet (tenths) +
x
6.31
x
`All din
G_ rid Points an comes o g sludge laver thickness must be show on a sketch attached to this Sludge Survev
Data Sheet.
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Agriment Services, Inc.
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 (Item O and P, respectively). 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 multily by layer thickness to calculate layer volume. 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.
Lagoon
1 Average Sludge Layer Thickness (7)
2 Depth of lagoon from top of bank to bottom soil surface (D)
3 Slope = horizontalfvertical side slope (S)
4 Length at top inside bank (L) :
5 Width at top inside bank (149 :
6 Length at midpoint of sludge layer (Lm) = L - 2 S (D - (T/2)) :
7 Width at midpoint of sludge layer (Wrn) = W - 2 S (D - (T/2))
8 Volume of sludge (Vs) = Lm Wm T:
9 Volume in gallons Vsg = V (7.5 gal./IN)
10 Thickness of existing liquid tmt. zone (Y)
11 Thickness of total treatment zone (Z) = T + Y
12 Length at midpoint of total tmt. zone Lz = L - 2(S)(D-(Z/2)
13 Width at midpoint of total tmt. Zone Wz = W - 2(S) (D -(Z/2)
14 Volume of total treatment zone (Vz) = Lz Wz Z
15 Ratio ( R) of sludge layer volume to total Treatment volume R = Vs/Vz
-- 5.31 fL
13.50 %
2.00
524.00 ft.
324.00 ft.
480.62 ft.__
280.62 %
716,168.11 fts
5,371,260.85 gal.
4.61 ft.
9.92 ft.
489.83 ft.
289.83 ft.
1,407,869.44 M
'0.51
If the ratio exceeds 50%, than a sludge Plan of Action may be required. Check with DWO for Information on
elina the Plan of Action.
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:
16 Design sludge storage volume (DSSV) __- fts —
17 Ratio (R) of sludge layer volume to treatment volume adjusted for (DSSV). -_ -__ — 0.61
Lagoon Identification: Mark Green (Sow)--2- Date: _11/2112022
Completed by: Ronnie G. Kennedy_ �►. r ?1010
Print Name -7 , Signatbre '�
3of3

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°DECEIVED
OCT 0 12023
C n�EO/DWR
Office
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 Residual Solids Permit, #WQ0037487. After curing for approximately 6
months solids will be distributed within 2 years either
i) as a Class A material in accordance with permit #W00037487, or
ii) if the sollds 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: � I — l --
Facili Owner/Ma ger (print)
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
SPOA 9-15-2016 Page 2 of 3
Compliance Due Date:
Phone: 6I10- 514- 5 la % 5
Date: 114- X A — ;;k.-3
State Permitted Facilities
Return this form to:
NC Division of Water Resources
at the appropriate Regional Office
(see following page)