820439_Sludge Survey (Reporting)_20230504

Permit Number.
ATTN: DENR Representative
Animal Feeding Operations Unit
1636 Mail Service Center
Raleigh,NC 27699-1636
Attached is,a copy of my most recent Sludge Survey. This survey
7�
shows I currently have 1,5rG ft. of permanent liquid treatment
storage in my animal waste lagoon, which is more than the
required four feet. Based on these findings I request to be exempt
from further sludge surveys for the life of my current permit, or the
number of years you and your office deem adequate.
Thank you for your consideration of this request.
�armoA-5
gnatureofFwner Date
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Appendix 1.Lagoon Sludge Survey Form Revised August 2008 RECEDED
A.Farm Permit or DWQ Identification Number �� 3 �l
B.Lagoon Identification `�}7-1- MAY 0 4 2023
C.Person(s)Taking Measurements yre NC DEQ/DWR
D.Date of Measurements ��- �'� Central Office
E.Methods/Devices Used for Measurement of:
a.Distance from the I o nbquid surf to the top of the sludge layer:
b.Distance from a lagoon 1 quid surfa�GeG to the bottom(soil)of the lagoon:
K/- c_ J),- L
c.Thickness of th sludge la,er if making a direct measurement with"core sampler":
F.Lagoon Surface Area(using dimensions at inside top of bank): _�i (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 acres, . 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 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 ft.when irrigating.
I. 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): ;;o
J. Determine the distance from the top of bank to the Maximum Liquid Level
(use lagoon management plan or other lagoon records)
i
K. Determine the distance from the Maximum Liquid Level to the Minimum Liquid Level ).-y
(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: °
j
P. Calculate the thickness of the existing Liquid Treatment Zone(Item N minus Item Lj: ',6�
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: � 1W—,',111LOO1OP Date:
`nt Name SiVaure

Appendix 2. Sludge Survey Data Sheet* Revised August 2005
Lagoon Identification:
Completed by: //J Date:
Print Name 5 nature
(A) (B) (C) (C)minus(B) - —
Grid Distance from liquid Distance from liquid surface Thickness of sludge layer
Point surface to top of sludge to lagoon bottom(soil)
No. ---- -
Ft.&in. Ft.tenths Ft.&in. Ft. tenths Ft. &in. Ft. tenths
2 ell
D
i
3 r
4 ' ,
5
,G
7 r�f .-z
a
9 / , / ►�2
10
11
12
13
14
15
1s
17
18
19
20
21
22
23
24
Number of points with X X
readings
Average
Of
points
At
pump X X X X
intake
*All Grid Points and corresponding sludge laver thicknesses must be shown on a sketch attached
to this Sludge Survev Data Sheet. See Appendix 4 for conversion from inches to tenths of a foot.

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