780015_Plan of Action (POA)_20191219

PLAN OF ACTION (POA) FOR LAGOON SLUDGE REDUCTION
Facility Number: AWS780015 County: Robeson
Facility Name: 74421
Certified Operator Name: Smithfield Operator#:
**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.
Lagoon 1 Lagoon 2 Lagoon 3 Lagoon 4 Lagoon 5 Lagoon 6
a.Lagoon Name/Identifier 74421
b.Total Sludge Depth(ft)
c.Sludge Depth to be
Removed for Compliance 12.32
(in)
d.Sludge Volume to be
Removed (gallons) 586,155
e.Sludge PAN
(lbs./1000 gal) 10
f. Liquid PAN
(lbs./1000 gal) 2
g. PAN of Sludge(lbs.)
(d x e)/1000 5,861.55
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 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 SB
Interagency Group Guidance Document 1.27.
SPOA 9-15-2016 Page 1 of 3

Smithfield.
`Good food. RtspoasibI
Sonar Sludge Survey Reporting Form
Farm or Permit Number: AWS780015
Lagoon I.D. Number: 74421
Person taking measurements: Staff
Date of Measurements: 12/12/2019
Methods/Devices used for measurement of: Sonar
Number of measurement data points: 348
Distance from the present liquid level to the top of sludge: 1.65 feet
A. Start Pump Level: 20.04 inches
B. Stop Pump Level: 45.6 inches
C. Current Freeboard Level: 52 inches
D. 1/2 Treatment Level: 84.12 inches
E. Average Sludge Level: 71.8 inches
If pump intake level is<2.5 ft a plan of action is required. 1.7 feet
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 586,155 Gallons
196 Dry Tons
.1.4/4* 2''‘tt(/ -
Completed by: ne./`(102.,` l 1 II 511 q
Print Name Signature Date
Retention: 5 years Original: 5/21/19

NARRATIVE:Use this section to describe the method(s)that will be used to tower 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,#WO0037487.After curing for approximately 6 months solids will be distributed
within 2 years either
i)as a Class A material in accordance with permit#WO0037487,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: 12/12/2019 Compliance Due Date: 12/12/2021
Smithfield Phone: [phone]
Facility OwnerlMa er rin)
Date: 1 V, 1 5- 1
Facility Owner/Manager(signature)
NPDES Permitted Facilities State Permitted Facilities
Return this form to: Return this form to:
Animal Feeding Operations Program NC Division of Water Resources
NC Division of Water Resources at the appropriate Regional Office
1636 Mail Service Center (see following page)
Raleigh,NC 27699-1636
SPOA 9-15-2016 Page 2 of 3

PLAN OF ACTION(PoA)FOR HIGH FREEBOARD AT ANIMAL FACILITIES
30 DAY DRAW DOWN PERIOD
I. TOTAL PAN TO BE LAND APPLIED PER WASTE STRUCTURE
1. Structure Name/Identifier(ID): S-6 Lagoon
2. Current liquid volume in 25 yr./24 hr. storm storage&structural freeboard
a. current liquid level according to marker 18.0 inches
b. designed 25 yr.I24 hr.storm&structural freeboard 19.9 inches
c. line b-line a(inches in red zone)= 1.9 inches
d. top of dike surface area according to design
(area at below structural freeboard elevation) 189000 ft2
e. line c/12 x line d x 7.48 gallons/ft° 226195 gallons
3. Projected volume of waste liquid produced during draw down period
f. temporary storage period according to structural design 180 days
g. volume of waste produced according to structural design 253780 ft3
h. current herd# 2400 certified herd# 2400
actual waste produced = current herd# x line g = 253780 fe
certified herd#
i. volume of wash water according to structural design 0 ft3
j. excess rainfall over evaporation according to design 110250 ft3
k. (lines h+i+j)x 7.48 x 30 days/line f= 453824 gallons
4. Total PAN to be land applied during draw down period
I. current waste analysis dated 5/8/2020 1.29 lbs/1000 gal.
m. ((lines e+k)/1000)x line I = 877.2 lbs. PAN
REPEAT SECTION I FOR EACH WASTE STRUCTURE ON SITE.
(Click on the next Structure tab shown below)
PoA(30 Day)2/21/00

x. Crop's remaining PAN balance(line v from section III)= 1934.9 lb.PAN
y. Overall PAN balance(w-x)= -1058 lb.PAN
Line y must show as a deficit. If line y does not show as a deficit, list course of action here including pump and
haul,depopulation, herd reduction,etc. For pump&haul and herd reduction options, recalculate new PAN based
on new information. If new fields are to be included as an option for lowering lagoon level,add these fields to the
PAN balance table and recalculate the overall PAN balance. If animal waste is to be hauled to another permitted
facility, provide information regarding the herd population and lagoon freeboard levels at the receiving facility.
NARRATIVE:
Irrigation onto existing spray fields will continue as weather and field conditions permit.Additional land is available
for pumping if needed.
PoA(30 Day)2/21/00