580029_Plan of Action_20230119

Smithfield.
Mludge
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Survey Form
Appendix 1. Lagoon Sludge Survey Form
A. Farm or Permit Number: AWS 58-029
B. Lagoon I.D. Number: 70930 A Williamston Boar Stud
C. Person taking measurements: Staff
D. Date of Measurements: 1/19/2023
E. Methods/Devices used for measurement of:
a. Distance from the lagoon liquid surface to the top of the sludge layer: Disk
b. Distance from the lagoon liquid surface to the bottom of the lagoon: Grade Rod
c. Thickness of the sludge layer if making a direct measurement with "core sampler":NA
F. Lagoon Surface Area (using dimensions at inside top of bank): 1.333333 acres
G. Estimate number of sampling points:
a. Less than 1.33 acres: Use 8 points
b. If more than 1.33 acres, 1.333333 acres x 6 = 8 , with max. 40
H. Conduct sludge survey and record data on "Sludge Survey Data Sheet' (App. 2).
a. Start Pump Level: 19.2 inches
b. Stop Pump Level: 54 inches
c. Current Freeboard Level: 26 inches
I. Distance from the max. liquid level to the the present liquid level: 6.8 inches
J. Distance from the max. liquid level to the min. liquid level: 34.8 inches
K. Distance from the present liquid level to the min. liquid level: 2.33 feet
L. Distance from the present liquid level to the lagoon bottom: 10.73 feet
M. Distance from the present liquid level to the top of sludge: 5.48 feet
N. Average thickness of sludge layer: 5.25 feet
O. Thickness of existing Liquid Treatment Zone (M minus K): 3.14 feet
P. If Item N is greater than Item O, half treatment volumes mu be
d termined...
If Item N is less than or equal to item O, you do not e t d I n volumes.
Comoleted bv:
Print Name
Signature Date

Smithfield.
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Sludge Survey Form
Appendix 2. Sludge Survey Data Sheet
Facility Name: AWS 58-029
Lagoon I.D. Number: 70930 A Williamston Boar Stud
Grid Point
I Distance from liquid surface
Distance from liquid surface
Thickness of
Number
Ito lagoon bottom (ft.)
to top of sludge layer (ft.)
Sludge Layer (ft.)
1
12
7
5
2
11
5.5
5.5
3
11.5
5.5
6
4
10.2
5
5.2
5
9.6
4
5.6
6
9.5
4.8
4.7
7
11
5
6
8
11
7
4
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Average 10.73 5.48 5.25
of points
At pump 12 7 5
intake *if pump intake level <2.5 a plan of action is required

Appendix 3. Sludge Volume Worksheet
Lagoon ID Number: 70930 A Williamston Boar Stud
A. Distance from Top of Dike to Midpoint of
Treatment Zone 8.64 feet
B. Distance from Top of Dike to Current 7.64 feet
Sludge Level (M + H.c.) He.= 2.17
If Item A is greater than item B then a two year
sludge removal plan is required
If Item A is less than item B sludge levels are
in compliance

'�i1e1
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Annual Sludge Survey Data Sheet Form
Farm Name 70930 Date 1 /19/23
Facility Number 58-029 Lagoon ID: A
Staff Gauoe Readino 26"
Grid Point#
Water Depth
Distance from Liquid
Surface to top of Sludge
Thickness of Sludge
1
12.0
7.0
5
2
11.0
5.5
5.5
3
11.5
5.5
6
4
10.2
5.0
5
5
9.6
4.0
5.6
6
9.5
4.8
4.7
7
11.0
5.0
6
8
11.0
7.0
4
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
At Pump Intake
At Pump Intake
Retention: 5 years
12.0 7.0 5
Revision 5/21/19

PLAN OF ACTION (POA) FOR LAGOON SLUDGE REDUCTION
Facility Number:
Facility Name
Certified Operator Name:
AW S580029
70930A
Smithfield
Operator #:
County:
"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.
Martin
La oon 1
Lagoon 2
Lagoon 3
Lagoon 4
Lagoon 5
Lagoon 6
a. Lagoon Name/ Identifier
70930A
b. Total Sludge Depth (ft)
c. Sludge Depth to be
Removed for Compliance
11.92
(in)
d. Sludge Volume to be
Removed (gallons)
182,696
e. Sludge PAN
(Ibs./1000 gal) 10
f. Liquid PAN
(Ibs./l000 gal) 2
g. PAN of Sludge (Ibs.)
(d x e)/1000 1,826.96
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 DWR 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 indicatim., non-compliance. If future sludge surveys do not show improvement in sludge levels, DWR
may require the owner to develop a sludge management plan that meets the requirements of SB
Interagency Group Guidance Document 1.27.
SPOA 9-15-2016 Page 1 of 3

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 Residuals 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 #WQ0037487, or
ii) if the solids 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: 1/19/2023
Smithfield
Facilit nerlM � rint) %
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
Compliance Due Date: 1/19/2025
Phone: [phone]
Date:
State Permitted Facilities
Return this form to:
NC Division of Water Resources
at the appropriate Regional Office
(see following page)
SPOA 9-15-2016 Page 2 of 3

DIVISION OF WATER RESOURCES REGIONAL OFFICES (09/2016)
Counties served by each Regional Office
Asheville Regional Supervisor
Washington Regional Supervisor 943
Raleigh Regional Supervisor
2090 U.S. Highway 70
943 Washington Square Mall
1628 Mail Service Center
Swannanoa, NC 28778
Washington, NC 27889
Raleigh, NC 27699-1628
[phone]
[phone]
[phone]
Fax [phone]
Fax [phone]
Fax [phone]
Avery Macon
Beaufort Jones
Chatham Nash
Buncombe Madison
Berrie Lenoir
Durham Northampton
Burke McDowell
Camden Martin
Edgecombe Orange
Caldwell Mitchell
Chowan Pamlico
Franklin Person
Cherokee Polk
Craven Pasquotank
Granville Vance
Clay Rutherford
Currituck Perquimans
Halifax Wake
Graham Swain
Dare Pitt
Johnston Warren
Haywood Transylvania
Gates Tyrell
Lee Wilson
Henderson Yancey
Greene Washington
Jackson
Hertford Wayne
Hyde
Fayetteville Regional Supervisor
Mooresville Regional Supervisor
Wilmington Region Supervisor
225 Green Street, Suite 714
610 East Center Avenue, Suite 301
127 Cardinal Drive Extension
Fayetteville, NC 28301-5094
Mooresville, NC 28115
Wilmington, NC 28405-3845
[phone]
[phone]
[phone]
Fax [phone]
Fax [phone]
Fax [phone]
Anson Moore
Alexander Lincoln
Brunswick New Hanover
Bladen Richmond
Cabafrus Mecklenburg
Carteret Onslow
Cumberland Robeson
Catawba Rowan
Columbus Pender
Harnett Sampson
Cleveland Stanly
Duplin
Hoke Scotland
Gaston Union
Montgomery
Iredell
Winston-Salem Regional Supervisor
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27105
[phone]
Fax [phone]
Alamance
Rockingham
Alleghany
Randolph
Ashe
Stokes
Caswell
Suny
Davidson
Watauga
Davie
Wilkes
Forsyth
Yadkin
Guilford
SPOA 9-15-2016 Page 3 of 3