310438_Lagoon Sludge Survey Form_20181219

Appendix I. Lagoon Sludge Survey Form Revised August 2008
A Farm Perron or DWQ Identification Number"
B. Lagoon Identification fJ
C Person(s) Taking Measurements �) r4; `t p�1 _ 7=��1 A? J f4�
D Date of Measurements
E Methods/Devices Used for Measurement of.
a. Distant from the lagoon liquid surface to the to of the sludge layer
b Distance from the 1 goon_ liquid surface t the bottom (sod) of the lag,
c Thickness of the sludge layer if making a direct measurement with "ct
F Lagoon Surface Area (using dimensions at inside lop of bank): , G
(Draw a sketch of the lagoon on a separate sheet, list dimensionsions, and surface area The lagoon may
have been built different than designed, so measurements should be made.)
G. Es'
number of sampling points
7(_ a." Less than 1.33 acres- Use 8 points
b. if more than 1 33 acres, acres x 6
with maximum of24.
(Using sketch and dimensionsdevelop 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 It. when irrigating.
L At the time of the sludge survey, also measure the distance froip 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 19 , (use lagoon management plan or other lagoon records)
K Determine the distance from the Maximum Liquid Level 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 1, 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 meastnerrent points): '7• 9
N. Record from the Sludge Survey Data Sheet the distance from t e resent liquid surface level to the top of the
sludge layer (average for all the measurement points) J
O. Record from the Sludge Survey Data Sheet the average thickness of the sludge layer. y • '( j
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 2.9�-/)-
Worksheet for Sludge Volume and Treatment Volume
If Item O is equal to or less than Item P, you -do not ave o deter a volumes. —
Completed by. w,) ):Puy 2 t^r-� „" • i � - .
Prim Name �"' ° " 2b te• t - �`%
Signature
31

a
11
Appendix 2. Sludge Survey Data Sheet*
Revised August 2008 -
Lagoon
Identification: A-- l
Completed by: e-54 '
Print Nam-- '-`�-�,-��
l
� bate:��
(A)
Si nature
Grid
Distance from liquid
( C) minus (B)
Point
No.
surface to lop of sludge
Distance from liquid surface Thickness of sludge layer
to lagoon bottom (sort)
1
Ft. & in. Ft tenths
t�
3'5
Ft. & in.
—71C)
FL tenths Ft & In. Ft tenths
2
3
—7.
3,0
`7'11
7,4
3
4
7
3' 3,0
`-7 111
71
5
2 Z3
II
-7')1
7,
9
6
7'1u
7'
11
12
16
17
24
of
X
X
0
X I X I X I X
-All Grid Points and correstiondin stud e)'a er thicknesses must be shown on a on to this Sludge Surve Data Sheet t'
See Append 4 r conversion from inches to tenths of a fool
.1
a•

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 "Pnsmoidal Equations" may be used.
1. Average Sludge Layer Thickness M
2. Depth of lagoon from top of bank
to bottom soil surface (D)
3. Slope = horizontal/vertical side slope (S)
4. Length at top inside bank (L)
5. Width at top inside bank (W)
6. Length at midpoint of sludge layer
Lin = L — 2 S (D- (T/2))
7. Width at midpoint of sludge layer
Wm = W — 2 S (D — (T/2))
8. Volume of sludge (Vs) -
Vs — Lm Wm T
9. Volume in gallons•
Vsg=V * 7.5 galifti
Example Your lagoon
2.5 ft 9
1
3
3
457 ft
3 U 0
229ft
!UO
i
3985ft. a,l114tq
170.5 ft
.10,860ft156, -7 q L7
1,273,950 gal. a S r s 1
10. Thickness of existing liquid tmt Zone (Y), 3.5 ft. 1) 01
i
I ]. Thickness of total treatment zone (Z) 6.0 ft.
Z=T+Y
(Appendix 3 continued on next page)
7..45,
t`(e xQ PS
3w— $3. I
aU4t9
/ CCU — 53, 1�

Fl
Revised August 2008
Appendix 3. Worksheet for sludge volume and treatment volume (continued)
12. Length at midpoint of total tint. 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)
Vz = Lz Wz Z
409ft 25a,3
181 ft Sa' 3
444,174 ft' / O 17 �o O q
3cro-2C3� (11�3 3b�
JJy`7,7
1CN-`i-71-7�
15. Ratio (R) of sludge layer volume to total 5C77 !
Treatment volume {� ✓ I U I1Coa y
R=Vs/Vz 0.38 ess
If the ratio exceed 0.Pon
n a sludge Plan of Action may be required. Check with
DWQ for info n filing 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:
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
1-72-/ (R' 0-0
IIte,OU0/-7I)I°(/
+o VS
lUlllO0,4

Appendix 1. Lagoon Sludge Survey Forrn Revised August 2008
A. Farm Permit or DWQ Identification Number AWS310438
8 Lagoon Identification Lagoon #1
C Person(s) Taking Measurements W. Costin / T. Killette
D Date of Measurement 9/7/2018
E. MelhodsfDevices Used for Measurement of
a. Distance from the lagoon liquid surface to the top of the sludge layer,
b Distance from the lagoon liquid surface to the bottom (soil) of the 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). 0.689 (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. 1.9 acres x 6 = 11 , with maximum of 24
(Using sketch and dmensions, 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 gnd 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 KMinus 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):
0. 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 Date,
Print Name /Signature
18
16
20
02
79
30
49
28

Appendix 2. Sludge Survey Data Sheet' Revised August 2008
Lagoon Identification Lagoon #1
Completed by, W. Costin
Print Name
Signature
Date:
(A)
(B)
(C)
(C)-(B)
Grid Point
Distance from liquid surface
Distance from liquid surface
Thickness of sludge layer
No.
to top of sludge
to lagoon bottom (soil)
Ft & in
Ft. (tenths)
Ft. & in.
Ft tenths
Ft & in.
Ft tenths
1
3 6
3.5
7 10
7.8
4.3
2
3 0
30
7 11
7.9
4.9
3
2 8
2.7
7 11
7.9
5.3
4
3 0
3.0
7 11
7.9
4.9
5
2 4
23
7 11
79
5.6
6
3 0
3.0
7 8
77
4.7
7
2 6
2.5
7 10
7.8
5.3
8
3 10
3.8
8 1
8.1
4.3
9
0.0
0.0
0.0
10
0.0
0.0
0.0
11
0.0
0.0
0.0
12
00
0.0
00
13
0.0
00
0.0
14
0.0
00
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
00
0.0
19
0.0
0.0
00
20
0.0
0.0
0.0
21
0.0
00
0.0 -
22
0.0
00
0.0
23
0.0
0.0
0.0
24
0.0
0.0
0.0
Number of points with readings
80
X X
8.0
X X
8.0
Average of
points
X X
29791667
X X
78854167
X X
4 90626
At pump
0.0
X X X X X X
intake
'Ail 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 O and P, respectively) In this example, the average sludge
layerthickness 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 Hnth 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-(f/2))
8 Volume of sludge (Vs) Vs=L,,, W, T
9 Volume In gallons, Vs9 V'7.5 gal /ft3
10. Thickness of existing liquid tmt. zone (Y)
11. Thickness of total treatment zone (Z) Z= T+Y
12 Length at midpoint of total tmL zone L, = L-2(S)(D-(Z/2)
13. Width at midpoint of total tml. Zone W, = W-2(S)(D-(Z/2)
14 Volume of total treatment zone (Vz) Vz = Lz W, Z
Example Your Lagoon
2.5 ft 4.9 ft.
11 ft 11.3 ft
3 30
457 ft. 300.0 ft
229 ft 100.0 ft.
398.5 ft. 2469 fL
170.5 ft
169,860 ft3
1,273.950 gal.
469 ft.
56,920 ft3
426,897 gal
35
ft
28 ft
6
ft
7.7 ft
409
ft
255.3 ft
181
ft
553 ft
444,174 ft3 109,182 ft3
15 Ratio( R ) of sludge layer volume to total Treatment Volume
R = VsNz 038 052
If the ratio R exceeds 0.50, than a sludge Plan of Action may be required. Check with DWQ for information
on filing the Plan of Action.
Note. If the lagoon has a designed sludge storage volume (DSSV), subtract that volume fr6m bath 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
n 52

PLAN OF ACTION (PDA) FOR LAGOON SLUDGE REDUCTION
Facility Number AWS310438 County Dupin
Facility Name: Bill Costin 14 Farm
Certified Operator Name: William J Cos6n, JR Operator#* AWA19638
Lagoon 1
Lagoon 2
La oon 3
Lagoon 4
Lagoon 5
La oon 6
a Lagoon Name / Identifier
Lagoon #1
b Total Sludge Depth ft
492
c Sludge Depth to be Removed for
Compliance
020
d Sludge Volume to be Removed
allons
17,463.39
e Sludge PAN Ibs/1000 a
WA
F Liquid PAN (lbs/1000 al)
WA
PAN of Sludge Obs) (d x e 1000

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.
�ro�le r
I hereby certify that 1 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: _q— \-I — \ Compliance Due Date: A—\—\ a0
Phone: Ol\O-oZQO. ay e
Facility Owner/Manager (print)
Date:
Facility OwneNManager (signature)
Return this form to:
SPOA 3-22-2010
Animal Feeding Operations Unit
NC Division of Water Resources
1636 Mail Service Center
Raleigh, NC 27699-1636
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