310035_Plan of Action_20210923

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Sonar Sludge Survey Reporting Form
Farm or Permit Number:
Lagoon I.D. Number:
Person taking measurements:
Date of Measurements:
Methods/Devices used for measurement of:
Staff
Sonar
Number of measurement data points:
Distance from the present liquid level to the top of sludge:
A. Start Pump Level:
B. Stop Pump Level:
C. Current Freeboard Level:
D. 1/2 Treatment Level:
E. Average Sludge Level:
If pump intake level is <2.5 ft a plan of action is required.
If value for E is greater than D then sludge levels are in Compliance.
If value for E is equal to or less than D then a Plan of Action is required.
Volume of sludge to be removed to reach compliance
Completed by: Michael Cudd
Print Name
Signature
AWS310035
2748
2/9/2021
248
5.46 feet
21.60 inches
62.40 inches
22 inches
95.40 inches
87.52 inches
4.4 feet
505,215 Gallons
169 Dry Tons
Retention: 5 years Original: 5/21/19

PLAN OF ACTION (POA) FOR LAGOON SLUDGE REDUCTION
Facility Number.
Facility Name:
AWS310035
2748
Certified Operator Name: Smithfield
Operator #:
County: Duplin
"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.
Lagoonl
Lagoon 2
Lagoon 3
Lagoon
Lagoon 5
Lagoon 6
a. Lagoon Name/ Identifier
2748
b. Total Sludge Depth (ft)
c. Sludge Depth to be
Removed for Compliance
7.88
(in)
d. Sludge Volume to be
Removed (gallons)
505,215
e. Sludge PAN
(Ibs./1000 gal)
10
f. Liquid PAN
(lbs./l000 gal)
2
g. PAN of Sludge (lbs.)
(d x e)/1000
5,052.15
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 MRCS
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 indicating 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 SIB
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 agitatedimixed 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: 2/9/2021
Smithfield
Facili wne Man er ( nt)
m
Facility Owner/Manager (signature)
NPDES Permitted Facilities
Return this form to:
Animal Feeding Operations Program
NO Division of Water Resources
1636 Mail Service Center
Raleigh, NO 27699-1636
Compliance Due Date: 2/9/2023
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