710042_Report_20191122

ROY COOPER
Governor
NCHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
Harley A Phillips
Phillips Partners
124 Phillips Dr
Wallace, NC 28466
Dear Harley A Phillips:
NORTH CAROLINA
Environmental Quality
November 22, 2019
RECH RED/M01EK't►/DW
NOV 2 6 2019
Water Quality Regional
Operations Section
Wilmington Regional Office
Subject: Sludge Survey Testing Dates
Certificate of Coverage No. AWS710042
Phillips Partners
Animal Waste Management System
Pender County
The Division of Water Resources (Division) received your sludge survey information on
November 13, 2019. With the survey results, you requested an extension of the sludge survey
requirement for Lagoon 1 (Back) and Lagoon 2 (Front) at the Phillips Partners facility. Due to
the amount of treatment volume available, and the rate of sludge accumulation for the lagoon,
the Division agrees that a sludge survey is not needed for both structures until December 31,
2024.
The next sludge survey for Lagoon 1 (Back) and Lagoon 2 (Front) at Phillips Partners should be
performed before December 31, 2024. Please retain this letter and keep it with your farm records
for reference.
Please call me at [phone] if you have any questions.
Sincerely,
IVWA41(
Heath C. Robinson
Animal Feeding Operations Program
cc: W�'�� M,7MiRe �,,U , aj = Water Quality Regional Operations Section
Permit File AWS710042
� �North Carolina Department of Environmental Quality I Division of Water Resources
,
512 North Salisbury Street 1 1636 Mail Service Center I Raleigh, North Carolina 27699-1636
NCx(rH rsgax+n
919.707.9000

Sludge Survey Evaluation Form
Today's Date a
11/22'/2019
Facility #
710042
710042
Owner:,.
H A Phillips___ _ _
H A Phillips
1agoon- 1. (Back).
.1agoo.n3'(front)'.
Lagoon ID
Sludge. Survey Received'
11/13/2-019
11/13/2019
Sludge 'Survey.Performed:.
10/7/2019
10/7/2019
Sludge Depth (Row O): (ft)
2.1
2.5
Existing Treatment Depth -(Row P): (ft)
6.10
5.90
Start Date:
10/20/94
10/20/94
Facility age at time of survey:(yr)
25,
25
Average Sludge Accumulation (ft/yr):
0.08
0.10
Requested Extension: (yr)
5
5
Requested Due Date
2024
2024
Sludge Accumulation during extension period: (ft)
0.42
0.50
Treatment Depth Available after Extension: (ft)
5.68
5.40
Sludge level OK?
-
Ratio Estimates Based on Depth
EXISTING
EXEMPTION
EXISTING
EXEMPTION
Ratio of Sludge layer to total trmt depth
0.26
0.31'
0.30
0.36
Ratio of Sludge depth OK?
EXISTING
EXEMPTION
EXISTING
EXEMPTION
Average Sludge layer thickness (T)
2.1
2.52
: 2.5
. 3.00
Depth of the lagoon from top of bank to bottom soil surface. (D)
". 11.9
11.7 .
11.9
11.7
Slope=Horizontal/vertical side slope (S)
2.5
: 2.5
2.5
2.5
Length at the top of inside bank (L)
310
3,10
310
310
Width at the top inside slope (W).
310
310
310
_ 310
Thickness of existing liquid treatment zone (ir)
5.68
5.40
6.10
5.90
Length at midpoint of sludge layer.(Lm)=L-2S(D-(T/2))
255.75
256.80
257.75
259.00
Width at midpoint of sludge layer (Wm)=W-2S(D-(T/2))
255.75
_ 256.80
257.75
259.00
Volume of sludge (Vs)=Lm*Wm*T
137356.93
166206.83
: 166087.66,,
201270.24
Volume in gallons (Vsg)=Vs*7.481
1027567.20
1243227.10
1242501.76
1505501.40
Thickness of total treatment zone (Z)=T+Y
8.20
8.20
8.40
. 8.40
Length at midpoint of total treatment -zone (Lz)=L-2(S)(D-(Z/2))
271.00
271.00
272.50
272.50

Width at midpoint of total treatment zone (Wz)=W-2(S)(D-(Z/2))
Volume of total treatment zone (Vz)=Lz*Wz*Z
271.00
602216.20
271.00
602216.20
272.50
623752.50
272.50
, 623752.50
Ratio(R) of sludge layer volume to total trmt volume'
0.228
. 0.276
0.266
0:323 .
Sludge Volume Ratio OK?
Maximum extension until end of permit cycle
Next survey to be done: (calendar yr)
12/31/2024
12/31/2024
Notification letter mailed:
11/22/2019
11/22/2019

Appendix 1. Lagoon Sludge Survey Form
Revised August 2008
A. Farm Permit or DWO Identification Number
B. Lagoon Identification
Top
Test Farms Start
Lagoon 1 (Back) Present
C. Person(s) Taking Measurements Amanda Hatcher & Test Farms Stop
D. Date of Measurement _ 10/7119 Bottom
F. Methods/Devices Used for Measurement of:
2.5:1 SS
a. Distance from the lagoon liquid surface to the lop of the sludge layer. 310 ft x 310 ft
Bucket lid on scaled pole 48 in FB (4.0 ft)
b. Distance from the lagoon liquid surface to the bottom (soil) of the lagoon.
Scaled pole
c. Thickness of the sludge layer if making a direct measurement with "core sampler".
WA
t
F. Lagoon Surface Area (using dimensions at inside top of bank): 2.14 (acres)
31d
(Draw a sketch of the lagoon on.a separate shoat, 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: Took 15 pts
a. Less than 1.33 acres: Use 8 points
b. If more than 1.33 ac. 2.14 acres x 6 = 13 , with maximum of 24.
(Using sketch and dmensions, develops 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 emlly 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:
0
1.7
4
4
11.9
4O S CA_i!L
+� I Z 13 N 0,
`+ $ 9 /o y
I 2 '5 q �, S
-5U
2.3
1.7
2.3
0.0
8.2
6.1
2.1
P. Calculate the thickness of the existing Liquid Treatment Zone (Item N minus item L): 6.1
0. If Item O is greater than item P, proceed to the Worksheet for Sludge Volume and Treatment Volume. 7a _1 a36) D
If Item O is equal to or less than Item P, you do not have to determine volumes. e �nr�1rN�
�C CD ✓Yyyit?
Completed by: Amanda Hatcher NCCES-Du lin 910-296-2143 Date: 10/7/19
Print Name /Signature /I , /inn ,f r, 1-171 _JU_

Appendix 2. Sludge Survey Data Sheet* Revised August 2008
Lagoon Identification Test Farms Lagoon 1 (Back)
Completed by: Amanda Hatcher
Print Name
l 4 Date:
Signature
1017119
(A)
(e)
(C)
(CHB)
Grid Point
Distance from liquid surface
Distance from liquid surface
Thickness of sludge layer
No.
to top of slud a
to lagoon bottom soil
Ft. & in.
Ft. tenths
Ft. & in.
R. tenths
R. & in.
R. tenths
1
6.3
8.5
2.2
2
6.4
8.5
2.1
3
6.3
8.0
1.7
4
6.0
8.6
2.5
5
6.0
8.0
2.0
6
6.0
8.5
2.6
7
5.8
8.5
2.7
8
6.0
8.0
2.0
9
6.0
8.6
2.5
10
5.5
8.0
2.5
11
7.0
9.0
2.0
12
6.4
8.4
2.0
13
5.9
7.7
1.8
14
6.6
8.0
1.5
15
5.5
7.5
2.0
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 Dints with readings
15.0
X X
15.0
X X
15.0
Average of
X X
6.1
X X
8.2
X X
2.1
Dints
At pump
5.0
X X X X X X
Intake
v
*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.
Example
Your Lagoon
1. Average sludge Layer Thickness (T)
2.6
ft.
2.1
ft.
2. Depth of the lagoon from top of bank to bottom soil surface (D)
11
ft.
11.9
ft.
3. Slope = HorizontaV vertical side slope (S)
3
2.5
4. Length at the top of inside bank (L)
457
ft.
310.0
ft.
5. Width at top inside slope (W)
229
ft.
310.0
ft.
6. Length at midpoint of sludge layer Lm= L-2S(a(T/2))
398.5,
ft.
255.8
ft.
7. Width at midpoint of sludge layer Wm= W 2S(D-(T/2))
170.5
ft.
255.8
ft.
8. Volume of sludge (Vs) Vs=Ln, Wm T
169.860
ft3
137,357
ft3
9. Volume In gallons: Vs9=V'7.5 gal.lft3.
1,273,950
gal.
1,030,177
gal.
10. Thickness of existing liquid tmt. zone (Y)
3.5
ft
6.1
ft
11. Thickness of total treatment zone (Z) Z= T+Y
6
ft
8.2
ft
12. Length at midpoint of total tmt. zone LZ= L-2(S)(D-(Z/2)
409
ft.
271.0
ft.
13. Width at midpoint of total tmt. Zone Wz = W 2(S)(D-(Z/2)
181
ft.
271.0
ft.
14. Volume of total treatment zone (Vz) Vz = Lz%Z
444,174
ft3
602,216
ft3
15, Ratio ( R ) of sludge layer volume to total Treatment Volume
R = Vs/Vz
0.38
0.23
If the ratio R exceeds 0.50, than a sludge Plan of Action may be required. Check with DWQ for information
on filling 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.
Then, R = (Vs-DSSV) / (Vz - DSSV)
Example: If DSSV = 85,000 113, then R = (169,860 - 85,000) / (444,174 - 85,000) = 84,860 / 359,174 = 0.24.
16. Design sludge storage volume (DSSV)
17. Ratio (R) of sludge layer volume to treatment volume adjusted
for designed sludge storage volume
85,000 0
0.24 0.23

Appendix 1. Lagoon Sludge Survey Form Revised August 2008
Top 0
A. Farm Permit or DWO identification Number Test Farms Start 1.7
B. Lagoon Identification Lagoon 2 (Front) Present 4
C. Person(s) Taking Measurements Amanda Hatcher & Test Farms Stop 3.7
D. Date of Measurement 10/7119 Bottom 11.7 y I
E. Methods/Devices Used for Measurement of: 2.5:1 SS .�( Not D S [Q L
a. Distance from the lagoon liquid surface to the top of the sludge layer. '310 ft x 310 ft
Bucket lid on scaled pole 48 in FB (4.0 ft)
b. Distance from the lagoon liquid surface to the bottom (soil) of the lagoon.
Scaled pole
c. Thickness of the sludge layer If making a direct measurement with "core sampler". Ft( N1A �+ io F. Lagoon Surface Area (using dimensions at inside top of bank): 2.14 (acres)Z(Draw a sketch of the lagoon on a separate sheet, list dimensions, and calculate surface area. The lagoo
may have been built different than designed, so measurements should be made.)
i
G. Estimate number of sampling points: Took 15 pis
a. Less than 1.33 acres: Use 8 points
b. If more than 1.33 ac. 2.14 acres x 6 = 13 , 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): 2.3
J. Determine the distance from the top of bank to the Maximum Liquid Level 1.7
(use lagoon management plan or other lagoon records)
K. Determine the distance from the Maximum Liquid to the Minimum Liquid level: 2.0
(use lagoon management plan or other lagoon records)
L. Calculate the distance from the present liquid surface level to the Minimum Liquid Level -0.3
(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) 8.1
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): 5.6
O. Record from the Sludge Survey Data Sheet the average thickness of the sludge layer. 2.5
P. Calculate the thickness of the existing Liquid Treatment Zone (Item N minus Item L): r �� i 5.9
4, 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. rA S
Completed by: Amanda Hatcher NCCES-Duplin 910-296-2143 Date: 1017/19
w
Print Name /Signatureo ,�/

Appendix 2. Sludge Survey Data Sheet*
Lagoon Identification Test Farms Lagoon 2
Completed by: Amanda Hatcher
Print Name
Revised August 2008
te:
Signature
1017119
(A)
( B )
( C )
(C)-(B)
Grid Point
Distance from liquid surface
Distance from liquid surface
Thickness of sludge lQtenths
No.
to to of slud a
to lagoon bottom soli
R. & in.
Ft. tenths
R. & in.
R. tenths
R. & in.
F
1
6.0
8.0
2.0
2
6.0
8.0
2.0
3
5.0
8.0
3.0
4
5.9
8.5
2.6
5
5.0
8.0
3.0
6
5.0
7.4
2.4
7
5.8
8.5
2.7
8
6.0
8.0
2.0
9
5.8
8.0
2.2
10
5.2
7.9
2.7
11
8.4
8.5
2.1
12
6.0
8.3
2.3
13
6.0
8.0
2.0
14
5.5
7.9
2.4
15
6.0
8.0
3.0
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 polnts with readings
15.0
X X
15.0
X X
15.0
Average of
points
X X
5.6
X X
8.1
X X
2.5
At pump
Uld
5.0
X X X X X X
intake
I
*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

Lam" A es-f Far-eyis
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 "Prismoldal Equations" may be used.
Example
Your Lagoon
1. Average sludge Layer Thickness (T)
2.5
ft.
2.5
ft.
2. Depth of the lagoon from top of bank to bottom soil surface (D)
11
ft.
11.7
ft.
3. Slope = Horizontal/ vertical side slope (S)
3
2.5
4. Length at the top of inside bank (L)
457
ft.
310.0
ft.
5. Width at top inside slope (W)
229
ft.
310.0
ft.
6. Length at midpoint of sludge layer Lm = L-2S(D-(T/2))
398.5
ft.
257.8
ft.
7. Width at midpoint of sludge layer Wm= W-2S(D-(T/2))
170.5
ft.
257.8
ft.
8. Volume of sludge (Vs) Vs=Lm Wm T
169.860
ft3
166,088
ft3
9. Volume in gallons: VsQ=V*7.5 galdit3.
1.273.950
gal.
1,245,657
gal.
10. Thickness of existing liquid tint. zone (Y)
-3.5
ft
3.9
ft
11. Thickness of total treatment zone (Z) Z= T+Y
6
ft
6.4
ft
12. Length at midpoint of total tmt. zone L== L-2(S)(D-(Z/2)
409
ft.
267.5
ft.
13. Width at midpoint of total tmt. Zone W. = W-2(S)(D-(Zl2)
161
ft.
267.5
ft.
14. Volume of total treatment zone (Vz) Vz = Lz Wz Z
444,174
ft3
457,950
ft3
15. Ratio ( R) of sludge layer volume to total Treatment Volume
R = Vs1Vz 0.38 0.36
If the ratio R exceeds 0.50, than a sludge Plan of Action may be required. Check with DiNQ for Information
on filing the Plan of Action.
Mote: 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) / (444,174 - 85,000) = 64,860 / 359,174 = 0.24.
1
16. Design sludge storage volume (DSSV) 85,000 0
17. Ratio (R) of sludge layer volume to treatment volume adjusted.
for designed sludge storage volume 0.24 0.36