310039_Application_20191223

Smithfield.
600A food. IZUP0 ,3N8®
PO Box 856
Warsaw, NC 28398
December 19, 2019
Ms. Christine Lawson
Water Quality Permitting Section
Animal Feeding Operations Program
1636 Mail Service Center
Raleigh, NC 27699-1636
Re: Benson Farm (31-039) Site Plan Review
Dear Ms. Lawson:
Smithfield Hog Production is seeking a permit modification of AWS310039 to construct a covered
anaerobic digester and biogas collection system on this site. The farm is on Veachs Mill Road
approximately 7.5 miles northeast of Warsaw, North Carolina. This site abuts the Goshen Swamp.
This project will involve construction of a covered digester, lift station, and mixing well.
This package is being submitted for permit plan approval by NCDWR for the proposed digester. The
following items are included in this package:
• New Swine Digester Animal Waste Management System Permit Application
• Engineering documents
• Construction Narrative
• CAWMP
• Location & Setback Map
• Site plans and Details
Thank you for taking the time to review this project. Please contact me at [phone] or
[e-mail] if you have any questions or need additional information.
Sincerely,
Kend I Williams
Project Engineer
DEC 2 8 2019

1
2.
New Swine Digester Animal Waste Management System
GENERAL INFORMATION:
1.1 Facility name: Benson Farm
1.2 Print Land Owner's name: Murphy Farms Inc.
1.3 Mailing address: PO Box 856
City, State: Warsaw. NC Zip: 28398
Telephone (include area code): (9_LO) 293-3434 Fax: [phone] Email: kwilliams(a�smithfield.com
1.4 Physical address: 956 Veachs Mill Rd
City, State: Warsaw, NC Zip: 28398
Telephone number (include area code): 910 293-3434
Latitude 35.06171' Longitude-77.99453' (Decimal Degrees From Google Earth)
1.5 County where facility is located: Duplin
1.6 Facility location (directions from nearest major highway, using SR numbers for state roads): From Warsaw take HM117N
N Plank St 0.14mi to E Hill St turn right. take E Hill St 0.84mi until it turns into Revell Rd. Continue on Revelle Rd. for
3.24mi until it turns into Veachs Mill Rd. Follow Veachs Mill Rd 2 9mi to farm entrance on left
1.7 Farm Manager's name (if different from Land Owner):
1.8 Lessee's / Integrator's name (if applicable; circle which type is listed): Smithfield Hog Production (company owned farm
1.9 Facility's original start-up date: 1-1-1984 Date(s) of facility expansion(s) (if applicable): N/A
1.10 Design Contact name: Kendal Williams Phone [phone] Email: kwilliams(a smithfield.com
OPERATION INFORMATION:
2.1 Facility number: 31-039
2.2 Operation Description:
Please enter the Design Capacity of the system. The "No. of Animals" should be the maximum number for which the
current swine waste management system is permitted.
Type of Swine No. of Animals
❑ Wean to Finish
® Feeder to Finish 6120
i Farrow to Wean sow)
Farrow to Feeder (# sow)
Farrow to Finish (T sow)
Wean to Feeder
Gilts
❑ Boar/Stud
6101 967 330
2.3 Acreage cleared and available for application (excluding all required buffers and areas not covered by the application
system):
Required Acreage (as listed in the CAWMP): Acres (*From 2007)
Existing Application Area (pre construction): 87.13 Acres
Proposed Application Area (after construction): 83.43 Acres
Page 1 of 6

New Swine Digester Animal Waste Management System
Is there a change to the existing WUP? YES or NO (circle one)
Is the Existing WUP attached? YES or NO (circle one)
Is the New (if applicable) WUP attached? YES or NO (circle one)
2.4 List and Describe all Storage/Treatment Structures Below:
a. DIGESTER or PRIMARY TREATMENT:
Treatment
Existing?
/N)
Name of
Type of
Surface
Type of Cover
Ttl Capacity
Req'd
Unit Type
Treatment Unit
Liner
Material
Area
(s.f.)
Material
() cu. ft.
Capacity
(cu. ft.)
Digester
N
Digester 1
Synthetic
31250
Synthetic (80 mil)
226,342
195,840
Select
Select
Select
Select I I I Select
b. SECONDARY STORAGE:
tin
Name of Storage Existing? Type of Liner
(Y
Unit Material
Benson Waste Storage Y
Soil Improved
Pond
Select
Select
Select
Select
Surface Area Ttl Capacity Req'd Capa
(cu. ft.) I (cu. ft.)
151,862 1 1,321,687 1 385,264
2.5 Are KNOWN subsurface drains present within 100' of any application fields? YES or NO (circle one)
2.6 Are KNOWN subsurface drains in the vicinity or under the waste management system? YES or NO (circle one)
2.7 Does this facility meet all applicable siting requirements? (See 3.3 for checklist) YES or NO (circle one)
2.8 Describe Water Movement between Barns, Digesters, and Storage Ponds
Location
Pump Station or pipe Size
Gravity
Minimum Pump
Capacity
Plan Sheet
Reference
GPM
TDH
Barns to Digester
Pump Station
6"
255
40
2
Digester to Secondary
Gravity
8"
4
Select
Select
Select
Select
Select
Select
Page 2 of 6

3.
New Swine Digester Animal Waste Management System
REQUIRED ITEMS CHECKLIST:
Please indicate that you have included the following required items by signing your initials in the space provided next to each
item.
Applicants Initials
3.1 One completed and signed original of the application for Swine Digester Animal Waste
Management System Application Form. KW
3.2 One copy of a general location map indicating the location of the animal waste facilities and
field locations where animal waste is land applied and a county road map with the location of
the facility indicated. KW
3.3 Documentation that proposed swine treatment/storage structures (NEW) meet the Swine Farm
Siting Act, including a site map. The scale of this map shall not exceed 1 inch = 400 feet. Site
Map included? YES or NO
All proposed digesters to occupied residences > 1500 feet OR no closer than existing setback.
Existing setback = 1575 feet YES or NO
All proposed digesters to schools, hospitals, churches, outdoor recreational facilities, national
parks, state parks, historic properties, or child care centers > 2500 feet OR no closer than
existing setback. Existing setback = >2500 feet YES or NO
All proposed digesters to property boundaries > 500 feet OR no closer than existing setback.
Existing setback = 100 feet YES or NO
All proposed digesters to Public Water supply wells > 500 feet. YES or NO
The map shall show the location of any property boundaries and perennial streams or rivers
located within 75 feet of waste application areas. YES or NO
3.4 One copy of all engineering documents, including, but not limited to, calculations, KW_
equipment specifications, plan and profile drawings to scale, construction materials,
supporting equations or justifications. Drawings shall be submitted (1) copy 2406
AND (1) Copy l 1x17.
3.5 One copy of a detailed narrative of the Swine Digester Animal Waste Management System. KW
3.6 One copy of the CAWMP. The CAWMP must include the following components. Some of
these components may not have been required at the time the facility was certified but should be
added to the CAWMP for permitting purposes:
3.6.1 The Waste Utilization Plan (WUP) must include:
• The amount of Plant Available Nitrogen (PAN) produced and utilized by the facility
• The method by which waste is applied to the disposal fields (e.g. irrigation, injection, etc.)
• A map of every field used for land application
• The soil series present on every land application field
• The crops grown on every land application field
• The Realistic Yield Expectation (RYE) for every crop shown in the WUP
• The PAN applied to every application field
• The waste application windows for every crop utilized in the WUP
• The required NRCS Standard Specifications for WUPs.
3.6.2 A site schematic. See Plan Sheet 1
3.6.3 Emergency Action Plan
3.6.4 Insect Control Checklist with chosen best management practices noted
3.6.5 Odor Control Checklist with chosen best management practices noted
3.6.6 Mortality Control Checklist with the selected method noted
Page 3 of 6

New Swine Digester Animal Waste Management System
3.6.7 Lagoon/storage pond capacity documentation (design, calculations, etc.); please be
sure to include any site evaluations, wetland determinations, or hazard classifications
that may be applicable to your facility
3.6.8 Operation and Maintenance Plan
3.6.9 Most recent annual Sludge Survey
If your CAWMP includes any components not shown on this list, please include the additional components with your
submittal. (Composting, waste transfers, etc.)
4. ENGINEER'S CERTIFICATION:
I, David S. Elkin (P.E. representing Owner's name listed in question 1.2), attest that this
application for Benson Farm (Facility name listed in question 1.1) has been reviewed by me and is accurate and complete to the best
of my knowledge. I understand that if all required parts of this application are not completed and that if all required supporting
information and ients.ap�-n1�r
this application package will be returned to me as incomplete.
Signature Date
Engineer's Seal
``•� ``

5. FARM OWNER/PERMITTEE CERTIFICATION:
Krai, Westerbeek (Owner/Permittee name listed in question 1.2), attest that this
application for Benson Farm (Facility name listed in question 1.1) has been reviewed by me and is accurate and complete to the best
of my knowledge. I understand that if all required parts of this application are not completed and that if all required supporting
information anjattachmetjts are not included, this application package will be returned as incomplete.
Signature r� Date
6. MANAGER"1 CERTIFICATION: (complete only if different from the Farm Owner)
I,
(Manager's name listed in question 1.7), attest that this application for
(Facility name listed in question 1.1) has been reviewed by me and is accurate and complete to the best of my knowledge. I
understand that if all required parts of this application are not completed and that if all required supporting information and
attachments are not included, this application package will be returned as incomplete.
Signature _ , Date
DEC 2 3 2019
Page 4 of 6

New Swine Digester Animal Waste Management System
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALL SUPPORTING INFORMATION AND MATERIALS,
SHOULD BE SENT TO THE FOLLOWING ADDRESS:
NORTH CAROLINA DIVISION OF WATER RESOURCES
WATER QUALITY PERMITTING SECTION
ANIMAL FEEDING OPERATIONS PROGRAM
1636 MAIL SERVICE CENTER
RALEIGH, NORTH CAROLINA 27699-1636
TELEPHONE NUMBER: [phone]
FAX NUMBER: [phone]
7. SURFACE WATER CLASSIFICATION:
This form must be completed by the appropriate DWR regional office and included as a part of the
project submittal information.
INSTRUCTIONS TO NC PROFESSIONALS:
The classification of the downslope surface waters (the surface waters that any overflow from the facility would flow toward) in
which this animal waste management system will be operated must be determined by the appropriate DWQ regional office.
Therefore, you are required, prior to submittal of the application package, to submit this form, with items 1 through 6
completed, to the appropriate Division of Water Resources Regional Operations Supervisor (see page 5 of 5). At a minimum,
you must include an 8.5" by I I" copy of the portion of a 7.5 minute USGS Topographic Map which shows the location of this
animal waste application system and the downslope surface waters in which they will be located. Identify the closest
downslope surface waters on the attached map copy. Once the regional office has completed the classification,
reincorporate this completed page and the topographic map into the complete application form and submit the
application package.
7.1 Farm Name: Benson Farm
7.2 Name & complete address of engineering firm: Smithfield Hog Production En ineerin
Telephone: [phone] Fax: [phone] Email: kwilliamsCwsmithfield.com
7.3 Name of closest downslope surface waters: Goshen Swam
7.4 County(ies) where the animal waste management system and surface waters are located: Duplin
7.5 Map name and date: Summerlins Crossroads 2019 Quad
7.6 NC Professional's Seal (If appropriate), Signature, and Date:
TO: REGIONAL OPERATIONS SUPERVISOR
Please provide me with the classification of the watershed where this animal waste management facility will be or has been
constructed or field located, as identified on the attached map segment(s):
Name of surface waters: Goshen Swami)
Classification (as established by the Environmental Management Commission): C;Sw
Proposed classification, if applicable:
Signature of regional office personnel: Date:
(All attachments must be signed)
Page 5 of 6

New Swine Digester Animal Waste Management System
DIVISION OF WATER RESOURCES REGIONAL OFFICES (09/2016)
Asheville Regional Supervisor
Washington Regional Supervisor
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
Bertie 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
225 Green Street, Suite 714
Fayetteville, NC 28301-5094
[phone]
Fax [phone]
Anson
Moore
Bladen
Richmond
Cumberland
Robeson
Harnett
Sampson
Hoke
Scotland
Montgomery
Winston-Salem Regional Supervisor
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27105
[phone]
Fax [phone]
Alamance
Rockingham
Alleghany
Randolph
Ashe
Stokes
Caswell
Surry
Davidson
Watauga
Davie
Wilkes
Forsyth
Yadkin
Guilford
Mooresville Regional Supervisor
610 East Center Avenue, Suite 301
Mooresville, NC 28115
[phone]
Fax [phone]
Alexander
Lincoln
Cabarrus
Mecklenburg
Catawba
Rowan
Cleveland
Stanly
Gaston
Union
Iredell
Wilmington Region Supervisor
127 Cardinal Drive Extension
Wilmington, NC 28405-3845
[phone]
Fax [phone]
Brunswick New Hanover
Carteret Onslow
Columbus Pender
Duplin
Page 6 of 6

Benson Farm (31-039)
956 Veachs Mill Rd
Warsaw, Duplin County
North Carolina
Anaerobic Digester Construction Narrative
Prepared by: Kendal Williams
December 11, 2019
Smithfieldu
Good tOOA. 1ZespoH.sibl8'.
PO Box 856
2822 Hwy 24 West
Warsaw, NC 28398
Phone [phone]
Fax [phone]
Email: [e-mail]

TABLE OF CONTENTS
SECTION
PAGE
1.0 PROJECT DESCRIPTION.......................................................................................................3
2.0 SITE DESCRIPTION............................................................................................................3
3.0 PLANNED SITE CONSTRUCTION ... .............................................................. 3

1.0 PROJECT DESCRIPTION
Smithfield Hog Production is proposing to construct a covered anaerobic digester and biogas collection
system on this 231.32 acre farm. The farm is in north central Duplin County approximately 7.5 miles
northeast of Warsaw, North Carolina. The site will continue to raise finisher pigs and will add the biogas
collection portion to the existing system. The project consists of a synthetic lined, synthetic covered
digester, a lift station to collect the waste from barns and transport to the digester, a gravity overflow
from the digester to the existing lagoon, a wet well mixing station, a biogas conditioning skid, and buried
biogas pipeline to transport the biogas to the off -site cleaning station. The purpose of this narrative is to
describe the anaerobic digester system that will be added to this site in addition to the permitted
anaerobic lagoon and spray field.
2.0 SITE DESCRIPTION
The Benson Farm is a Smithfield Hog Production/Murphy-Brown LLC company owned finisher. It is
permitted for 6,120 head feeder to finish and consists of (5) 1,224 head finishing barns. The farm
currently has one single stage anaerobic waste lagoon. The lagoon is 151,862 square feet of surface area
and 1,321,687 cubic feet of volume. The liner is clay. The farm has been in operation since 1984.
3.0 PLANNED SITE CONSTRUCTION
1. The first part of the construction is to collect waste water from the 5 barns. Each barn has two
discharge pipes coming out of the low end. A 12" double wall corrugated plastic pipe will be run on
grade as a header pipe. Each discharge pipe from the five barns will flow into this header pipe and
then to a lift station. (See Plan Sheet 1)
2. The lift station is a concrete tank buried sufficiently deep to allow discharge from the header pipes.
The lift station will have two GEA 4" Hog Manure Pumps. This lift station will have two failsafes after
the highwater alarm. The first failsafe is a gravity overflow that will flow into the existing lagoon if
water levels are not adequately controlled by the pump(s) or there is a power outage. The second
failsafe is that the top of the lift station will be above the lowest buildings finished floor elevation. If
the pumps do not control the water AND if the overflow becomes plugged, the water would then
seek level inside of the buildings using the pits as storage. No water would go over the top of the lift
station before it was visible in the barns to the employees. (See Plan Sheet 2) Wastewater collected
in the lift station is pumped through a 6" DR 17 high density polyethylene (HDPE) force main into
the digester.

3. The digester is an earthen basin constructed near the existing lagoon. The digester is designed at
31,250 square feet of surface area and 226,342 cubic feet of volume. The basin will be synthetically
lined with 60 mil HDPE. After installing, testing and certifying the liner; water will be pumped from
the existing lagoon into the digester basin to the level requested by the cover installer. The cover
will be constructed from 80 mil HDPE and will be secured into an anchor trench at the top of the
berm. The cover will have weighted pipes on top for ballast and to channel rainwater into
manageable areas. The rainwater will be pumped off the cover into the adjoining field.
Inside of the digester will be two (2) baffles subsequently creating three (3) chambers. The
chambers are not water tight, their primary purpose is to increase solids retention time. The first
baffle will be at approximately 105 feet from the east end of the digester. This will be an underflow
baffle, meaning the top will float with the water level and flow will go to the bottom and under the
baffle into the second chamber. This first chamber will serve to concentrate the solids as they come
into the digester.
Once the water has made its way under the first baffle, the middle chamber's purpose is to further
settle solids. Since it is possible that undigested waste made it into the second chamber, a mixing
well is used to pull water from chamber 2 and direct it back into chamber 1. A wet well will be
installed on the south side of the digester at approximately the midpoint. The wet well will have a
12" gravity flow pipe from under the cover leading into the concrete tank. The wet well level and
the water level in the digester will be the same elevation. The wet well will have a GEA 8" Flush
Pump in the tank and will be operated on a timer. The pump will run for the number of hours
required to turn the volume over in 48 hours. Field testing of the flow will be required to calculate
this time. It is estimated that the pump will not run for more than 12 hours in a 24-hour time
period. The pump will pull water from the second chamber and discharge it into the first chamber. If
the pump does not turn on due to a failure, no wastewater can leave the system.
The second baffle is approximately 50 feet from the west end of the digester and is an overflow
baffle. Solids in the water have now been settled in the east and middle chambers and only low
solids water will be able to flow over the second baffle and into the west chamber. The liquid level
of the digester will be maintained at 24" of freeboard by a 12" outlet pipe. Water in this third
chamber will use gravity to flow out of the 12" pipe into the existing lagoon for storage.
The required waste treatment is in the digester so the existing lagoon will now run as a waste
storage pond. The waste storage pond will be used for secondary storage volume. In the event the
digester fails or other unforeseen catastrophic events occur, the waste storage pond can revert to
its originally permitted single stage lagoon status. The CAWMP will manage the land application of
nutrients stored in the waste storage pond.
4. Biogas will be collected under the 80 mil HDPE cover. To remove the gas there will be a perforated
pipe at the top of the berm under the cover to provide a pathway for the gas. The pipe will be
buried under the anchor trench and come out on the outside of the digester dike. The gas will be
piped to the skid mounted biogas conditioning pad. (See Plan Sheet 6) The on farm biogas
conditioning pad removes moisture from raw biogas. This clean condensate will be pumped into the
adjoining field. The dry biogas will now enter the on farm pipeline to be carried to the centralized
gas cleaning station.

Northing: = 480,565, Easting = 2.299,580 Northing: = 480,565, Easting = 2,303,048
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CONTAINS:
C COMMUNITY CID
DUPLIN COUNTY 370083
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Notice to User: The Map Number(s) shown below
should be used when placing map orders; the
Community Number(s) shown above should he used on
insurance applications for the subject community.
SELECTED PANELS:
C MAP NUMBER EFFECTIVE DATE
140051, 37202486003 2/16/2006
Z 37203406003 2%/16-f2006
37202488003 2/16/2006
37203408003 2/16/2006
�1d

Benson Farm 31-039Hydraulic
& Solids Retention Calculations
Digester volume full
198,368 cf
1,483,793 gal
WASTE WATER
RECYCLE VOLUME
1224 hd
tanks
5
5 bldg
gal/tank
800
6120 head total
time/day
16
2.3 gal/h/day
gal/Day total
64,000
14,076 gal/day
pump (gpm)
133
7.00% solids
run (hr)
8
8,217.6 Ibs of solids per day
gal/Day total
64,000
Volume into the Digester
78,076 gal/day (total)
651,154 Ibs of waste total
1.26% solids percentage
19.0 hydraulic retention (Days)
105.4 solids retention (Days)
50% Efficiency
52.7 Effective solids retention (Days)

Facility Number: 31-039
Grower: Benson Farm
Address: PO Box 856
Warsaw, NC 28398
Countv: Duplin
Designed By: BHW
Checked By- DSF
Date: 12/20/19
Sheet 1 of 12
ANAEROBIC DIGESTER DESIGN
FARM INFORMATION
Wean to Finish:
Finishing:
Recycle Flush Water Volume:
DIGESTER INFORMATION
Is Digester Designed as an Irregular Shape?
Was This Facility Built Prior to 9/96?
Is Drain Tile Req'd to Lower SHWT?
Seasonal High Water Table Elev:--------
Freeboard:--------
Side Slopes:
Inside Top Length:
Inside Top Width:
Top of Dike Elevation:
Finished Bottom Elevation:
Start Pump Elevation:
Stop Pump Elevation:
DIGESTER VOLUMES REQUIRED VOL.
Freeboard = 0 (Cu.Ft.)
Temporary = 0 (Cu.Ft.)
Treatment = 195840 (Cu.Ft.)
Total Volume = 195,840 (Cu.Ft.)
Lagoon Surface Area: (Inside TOD)
Smithfield Hog Production Engineering
Farm Population:
(YIN)
(Y/N)
(Y/N)
Depth
15.00 Ft.
24 In.
24 In.
DESIGN VOLUMES
27,974 (Cu.Ft.)
0 (Cu.Ft.)
198,368 (Cu.Ft.)
226,342 (Cu.Ft.)
P.O. Box 856, Warsaw, NC 28398
N
Y
N
UNK
m
L
1.0
Ft.
3
:1 (H:V)
250.0
Ft.
125.0
Ft.
136.50
Ft.
121.50
Ft.
134.50
Ft.
134.50
Ft.
% REQ'D.
101.29%
115.57%
31,250 S.F.
[phone]

Facility umber:31-039
Grower: Benson Farm Designed By: BHW
Address: PO Box 856 Checked By: DSE
Warsaw, NC 28398 Date: 12/20/19
County: Duplin Sheet 2 of 12
ACTUAL DESIGN VOLUME CALCULATIONS
BASE VOLUME: OCu. Ft.
DIGESTER STAGE -AREA VOLUMES
Contour
Elevation ( FT I Area SF Incr. Vol. Cu. FT
121.50
5,600
122.00
6,194
123.00
7,436
124.00
8,750
125.00
10,136
126.00
11.594
127.00
13,124
128.00
14,726
129.00
16,400
130.00
18,146
131.00
19,964
132.00
21,854
133.00
23,816
134.00
25,850
135.00
27,956
136.00
30,134
136.50
31,250
2,949
6,815
8,093
9,443
10.865
12,359
13,925
15,563
17,273
19,055
20,909
22,835
24,833
26,903
29,045
15,346
Cumul. Vol. C( u. FT)
0
2,949
9,764
17,857
27,300
38,165
50,524
64,449
80,012
97,285
116,340
137,249
160,084
184,917
211,820
240,865
256,211
These volumes were calculated using the vertical average end area method
TOTAL REQD VOL
195,840
CF
CUMULATIVE
VOL.
ZONE VOL. 115.57%
END PUMP = = = =
134.50
FT
198,368 CF
TR'MT
198,368 101.29%
START PUMP = =:
134.50
FT
198,368 CF
TEMP
0
MAX STORAGE =
135.50
FT
226,342 CF
STORM
27,974
Smithfield Hog Production Engineering P.O. Box 856, Warsaw, NC 28398 [phone]

Grower: Benson arm Designed -By: BHVV
Address- PO Box 856 Checked By: DSE
Warsaw, NC 28398 Date: 12/20/19
County: Duplin Sheet 3 of 12
WASTE STORAGE POND DESIGN 2nd STAGE
FARM INFORMATION
Farm Population:
Wean to Finish: ------------------- 0
Finishing: ------------------- 6120 Hd.
Storage Period: ------------------- Days
25 Yr. / 24 Hr Storm Event ------------------- 7.5 In.
"Heavy Rain" Factor Applicable Even if Value Shown 0
Rainfall in Excess of Evaporation ------------------- 7 In.
Additional Water Usage: — ----------------- 0
Additional Drainage Area.- ------------------- 0
STORAGE INFORMATION
Is Storage Pond Designed as an Irregular Shape? (Y/N)------------
Y
Does Operator Want Emergency Spillway?
(Y/N)------------
N
Was This Design Built Prior to 9/96?
(Y/N)------------
Y
Is Drain Tile Req'd to Lower SHWT?
(Y/N)-----------
N
Seasonal High Water Table Elev:
-------------------
LINK
Freeboard:
-------------------
Ft.
Emergency Spillway Flow Depth:
Not Applicable Even if Value Shown
0.3
Ft.
Side Slopes:
-------------------
.
:1 (H:V)
From Lagoon Volume Check Contours
0.0
contour areas see sheet 2 of 7 ..
0.0
Top of Dike Elevation:
---------------- Depth
99.40
Ft.
Finished Bottom Elevation:
---------------- 11.90 Ft.
87.50
Ft.
Start Pump Elevation:
---------------- 19.92 In.
97.74
Ft.
Stop Pump Elevation:
----- ---------- 50.4 In.
95.20
Ft.
STORAGE VOLUME REQUIRED
VOL. DESIGN VOLUMES
% REQ'D.
Storm Stor =
94914
(Cu.Ft.)
95,979
(Cu.Ft.) 101.12%
Temporary =
290350
(Cu.Ft.)
349,176
(Cu.Ft.) 120.26%
Permanent =
0
(Cu.Ft.)
876,533
(Cu.Ft.)
Total Volume =
385,264
(Cu.Ft.)
1,321,687
(Cu.Ft.) 343.06%
90 Temporary Storage Volume Elevation =
97.04
Ft. 28.33 In.
Lagoon Surface Area: (Inside TOD)------------------- 151,862 S.F
Smithfield Hog Production Engineering P.O. Box 856 Warsaw, NC 28398 [phone]

Grower: Benson Farm Uesigned y: BHVV
Address: PO Box 856 Checked By: DSE
Warsaw, NC 28398 Date: 12/20/19
County: Duplin Sheet 4 of 12
ACTUAL DESIGN VOLUME CALCULATIONS
BASE VOLUME: Cu. Ft.
STORAGE POND STAGE -AREA VOLUMES
Contour
Elevation (FT)
Area SF
Incr. Vol. (Cu. FT)
87.50
96,923
88.00
99,031
48,989
89.00
103,299
101,165
90.00
107,638
105,469
91.00
112,047
109,843
92.00
116,526
114,287
93.00
121,076
118,801
94.00
125,696
123,386
95.00
130,387
128,042
96.00
135,148
132,768
97.00
139,979
137,564
98.00
144,881
142,430
99.00
149,853
147,367
99.40
151,862
60,343
Cumul. Vol. (Cu. FT
0
48,989
150,154
255,622
365,465
479,751
598,552
721,938
849,980
982,747
1,120,311
1,262,741
1,410,108
1,470,451
These volumes were calculated using the vertical average end area method.
TOTAL REQD VOL
195,840
CF
CUMULATIVE
VOL.
ZONE VOL
END PUMP = = = =
95.20
FT
876,533 CF
TR'MT
876,533
START PUMP = =:
97.74
FT
1,225,709 CF
TEMP
349,176
MAX STORAGE =
98.40
FT
1,321,687 CF
STORM
95,979
343.06%1
120.26%
101.12%
Smithfield Hog Production Engineering P.O. Box 856 ,Warsaw, NC 28398 [phone]

Grower: Benson Farm Designed By: BHW
Address: PO Box 856 Checked By: DSE
Warsaw, NC 28398 Date: 12/20/19
County: Duplin Sheet 5 of 12
MINIMUM REQUIRED VOLUME CALCULATIONS DIGESTER
Permanent Storage:
Required Treatment Volume:
Animal Type Capacity (cu.ft./hd) = Total
Nursery
0
0
Wean to Finish
0
32.00
0
Finishing
6,120
32.00
195,840
Farrow to weanling
0
0
Farrow to feeder
0
Farrow to
0
.00
0
Boars
0
1
0
Total Required Treatment Volume (cu. ft.)=
Sludge Storage Volume:
195,840
nimal Type Capacity ALW (cu.ft./lb) = Total
Nursery
0
30
0.00
0
Wean to Finish
0
115
0.00
0
Finishing
6,120
135
0.00
0
Farrow to weanling
0
433
0.00
0
Farrow to feeder
0
522
0.00
0
Farrow to finish
0
1,417
0.00
0
Boars
0 1
400
0.00
0
Total Required Sludge Storage Volume (cu. ft.)=
No Storm Storage Unless a Partial Cover Digester:
Vol.=(Digester Surf. Area + Addt'I Drainage Area) * 25Yr./24Hr. Storm(in) / 12in./ft.
Vol.= (31250 sq.ft + 0 sq.ft.) * 0.0 in. /12 in./ft.
Total Required Volume for 25Yr./24Hr. Storm Event (cu.ft)=
No "Heavy Rain" Storage Unless a Partial Cover Digester:
Vol.=(Digester Surf. Area + Addt'I Drainage Area) * "Heavy Rain" Factor (in) / 12in./ft.
Vol.= (31250 sq.ft + 0 sq.ft.) * 0.0 in. /12 in./ft.
Total Required Volume for "Heavy Rain" (cu.ft.) _
(for Extended Periods of Chronic Rainfall)
Smithfield Hog
Total Required Storm Storage
(25Yr. / 24Hr. Storm +'Heavy Rain')=
Total Required Permanent Storage
(Treatment + Sludge) _
0
0 (CU.FT)
195,840 (CU.FT)
TOTAL REQUIRED DIGESTER VOLUME = 195840 (CU.FT.)
P.O. Box 856, Warsaw NC 28398
0
0

Grower: Benson Farm Designed By: BHW
Address: PO Box 856 Checked By: DSE
Warsaw, NC 28398 Date: 12/20/19
Countv: Duolin Sheet 6 of 12
Tem ora Storage Volume:
Manure Production:
Animal Type Capacity Sto. Period = Total
Nursery
Wean to Finish
0
180
1.17
_
0
Finishing
6,120
180
1.37
1,509,192
Farrow to
0
Boars
0
Total Manure Production (gals.)= 1,509,192
Total Manure Production (cu.ft.)= 201,764
Excess Fresh Water:
Animal Type rapacity Sto. Period = Total
Nursery
0
0
0.00
0
Wean to Finish
0
180
0.00
0
Finishing
6,120
180
0.00
0
Farrow to weanling
0
0
0.00
0
Farrow to feeder
0
0
0.00
0
Farrow to finish
0
0
0.00
0
Boars
0
0
0.00
0
Total Fresh Water Excess (gals.)= 0
Total Fresh Water Excess (cu.ft.)= 0

Grower: Benson Farm
Address: PO Box 856
Warsaw, NC 28398
County: Duplin
Temporary Storage Volume: Cont.)
Designed By: BHW
Checked By: DSE
Date: 12/20/19
Sheet 7 of 12
Rainfall in Excess of Evaporation: Only in Waste Storage Pond since digester is covered
Vol.=(Digester Surface Area + Waste Storage Pond Area + Additional Drainage Area) * Rainfall / 12in./ft
Vol.= (0.0 sq.ft. + 151862 sq.ft. + 0 sq.ft.) * 7.0 in. /12 in./ft.
Total Required Volume for Rainfall in Excess of Evap. (cu.ft.)= 88,586
Storm Storage: Only in Waste Storage Pond since digester is covered
Vol.=(Digester Surface Area + Waste Storage Pond Area 1 * 25Yr./24Hr Storm (in.)/12in./ft.
Vol.= (0.0 sq.ft. + 151862 sq.ft. + 0 sq.ft.) * 7.5 in. /12 in./ft.
Total Required Volume for 25Yr./24Hr. Storm Event (cu.ft)= 94,914
"Heavy Rain" Storage: Only in Waste Storage Pond when required since digester is covered
Vol.=(Digester Surface Area + Waste Storage Pond Area + Additional Drainage Area) * Heavy Rain Factor(in) / 12in./ft.
Vol.= (0.0 sq.ft. + 151862 sq.ft. + 0 sq.ft.) * 7.5 in. /12 in./ft.
Total Required Volume for "Heavy Rain" (cu.ft.) = 0
(for Extended Periods of Chronic Rainfall)
Additional Water Storage:
No Additional Water Storage is Required
0
Total Required Storm Storage
(25Yr. / 24Hr. Storm +'Heavy Rain')=
Total Required Temporary Storage
(Manure Prod. + Excess Fr. Water + Rainfall Excess + Additional Water Storage)=
Total Required Permanent Storage
(Treatment + Sludge) _
94,914 (CU.FT)
290,350 (CU.FT)
0 (CU.FT)
TOTAL REQUIRED 2nd STAGE VOLUME = 385264 (CU.FT.)
P.O. Box 856, Warsaw NC 28398 [phone]
0

Grower: Benson Farm
Address: PO Box 856
Warsaw, NC 28398
County: Duplin
Designed By: BHW
Checked By: DSE
Date:
Sheet 9 of 12
STORAGE POND DESIGN SUMMARY 2nd STAGE
12/20/19 1
Top of Dike Elevation — -----------------
99.40
FT.
Emergency Spillway Crest Elevation -------------------
Not
Applicable
Top of 25Yr. / 24Hr. Storm Storage -------------------
98.40
FT.
Top of "Heavy Rain" Storage -------------------
Not
Applicable
Start Pump Elevation -------------------
97.74
FT.
End Pump Elevation -------------------
95.20
FT.
Top of Sludge Storage -------------------
Not
Applicable
Seasonal High Watertable Elev-------------------
LINK
Finished Bottom Elevation -------------------
87.50
FT.
Inside Top Length -------------------
Not
Applicable
Inside Top Width ------------------
Not
Applicable
Side Slopes — -----------------
3.0:1
H:V
Lagoon Surface Area -------------------
151,862
SF
Freeboard Depth — -----------------
1.00
FT,
Temporary Storage Period -------------------
180
Days
TOTAL DESIGN VOLUME = 1321687 (CU.FT.)
Zone Depths:
Treatment / Sludge Storage Zone Depth
Temporary Storage Zone Depth
Freeboard / Storm Storage Zone Depth
c�.....:c� X.'— —
Total Storage Pond Depth
7.7 FT.
2.5 FT.
1.7 FT.
11.9 FT.
I twy r I ULJUL uvji cnynrcCnny r v mx coo, Warsaw IVG zu39S [phone]

� - - -� � ...+ v • v

Grower: Benson Farm
Address: PO Box 856
Warsaw, NC 28398
Designed By: BHW
Checked By: DSE
Date: 12/20/19
Sheet 12 of 12
This Anerobic Digester is designed in accordance with the North Carolina Natural Resources Conservation
Service PRACTICE STANDARD 366- ANEROBIC DIGESTER, revised in September, 2018.
The Waste Storage Pond is designed in accordance with the North Carolina Natural Resources Convservation
Service PRACTICE STANDARD 313- WASTE STORAGE FACILITY, revised in December, 2017.
�

DATE:
COMMENTS:
r�
Smithfield Hog Production Engineering P.O. Box 856, Warsaw NC 28398 [phone]

18 • ELECTRIC PUMPS
-�V4" hog manure pur---
An ideal pump to transfer low-c
liquid when a high flow rate an(
pressure are needed.
Agitates and transfers hog slurry or dairy wastewater
from the reception pit to the main storage.
4" (ioo mm) diameter discharge;
Available motors: 5, 7.5 or to HP (3.7, 5.5 and 7.5 kW);
For pit depths of 4 to 18 feet by two -feet increments
(1.2 to 5.5 m by o.6 m increments);
Steel impeller with four curved blades;
5" (127 mm) intake;
Agitation nozzle with 235° horizontal rotation and up-and-down arti
The nozzle is easily removed for maintenance while leaving pump h
Pump discharge available below ground level at a minimum of 36" (!
from the bottom of the pit.
Manure with no bedding and dairy wastewater
Maximum consistency
Performance charts
60-Hz motor
m
16-
14
12
a
= 10
o,
c
E 8-
E
6
4
2
3/8" (10 mm)
m-
16
14
12
10
8-
6
4
2
0
Duu WU US gpm
0 100 200 300 400 500 0 100 _. I 200 300 400 500 MP9pm
0 500 1 000 1 500 2 000 2 500 0 560 1 000 1 500 2000 2 500 Ipm
Flow Rate Flow Rate
Performance charts are based on tests in water. Performance may vary depending on pump configuration and application.

10 ELECTRIC PUMPS
8" flush pump *k
Low -rpm pump offering a high flow rate.
The 8" flush pump is. used to force feed a power flume system or a flush valve system used
to clean out the alleys or holding area.
8" (2oo mm) diameter discharge;
Available motors: 7.5,10,15, 20, 25, 30, 40, 5o and 6o HP
(5.5, 7.5, rr,15, 18.5, 22, 30, 37 and 45 kW);
For pit depths of 6 to 20 feet by two -feet increments
(1.8 to 6.1 m by o.6 m increments);
16" (4o6 mm) ductile iron impeller with four curved blades;
91/2" (241 mm) intake;
Optional 6" (150 mm) nozzle with cast-iron valve to recirculate the manure in the pit.
Pump specifically designed for dry pit installation. This model manages
the same type of material as the original and pontoon -mounted models.
Liquid manure with no bedding and flush liquid
Maximum consistency 1/8" (3 mm)
41
IL,

ELECTRIC PUMPS 11
Performance charts
60-Hz motor
Max. Flow Rate Configuration
M ft
30F 100 50 HP
28[ 40 HP —
go —30,HP-
26
24 80 20 HIP
22 70
20
18 60
16 50 7.5 HP
14
E 12 40
10-
30
61 20
4 10 -
2
"I
Max. Pumping Head Configuration
1000 1 500 2000 2 500 3000 1000 1 500 2000 US gpm
......... I ....... �, o4t ......
1000 1500 0 2 500 1000 1 500 Imp gpm
4000 6000 8000 16 l000, , 1 —1,5 000 4 000 6000 8600 ipm
Flow Rate
50-Hz motor
Max. Flow Rate Configuration
M ft
30-100 37 kW
- 30 kW
28- 90
26-
24- 80
- 15 kW22- 70
20-
18- 60
im 16-
.S - 50
M 14-
E 12 40
0- 10 30
8
6 20
4
10 -- ----- -
Max. Pumping Head Configuration
0. 1000 1 500 2000 2500 3000 1000 1 500 2000 US gpm
1 Z ...... 1 560 2 OVO 25100 1000 1500 lmpgpm
4000 6000 8000 10000 120004000 6000 8 000 1pm
Flow Rate
Performance charts are based on tests in water. Performance
may vary depending on pump configuration and application.

Murphy -Brown, LLC 10/15/2019 2822 Hwy 24 West
P.O. Box 856
Warsaw, NC 28398
NUTRIENT UTILIZATION PLAN
Grower(s):
Farm Name:
Murphy -Brown, LLC dba smithfield Hog Production
Benson Farm, AWS310039
County Du lin
Permit Capacity:
Farrow to Wean
Farrow to Feeder
Farrow to Finish
Wean to Feeder
Wean to Finish
Feeder to Finish 6120
Gilts
Boars
Storage Structure:
Storage Period:
Application Method:
Anaerobic Lagoon
>180 days
Irrigation
DEC 2 3 2019
The waste from your animal facility must be land applied at a specified rate to prevent pollution
of surface water and/or groundwater. The plant nutrients in the animal waste should be used
to reduce the amount of commercial fertilizer required for the crops in the fields where the waste
is to be applied.
This waste utilization plan uses nitrogen as the limiting nutrient. Waste should be analyzed
before each application cycle. Annual soil tests are strongly encouraged so that all plant
nutrients can be balanced for realistic yields of the crop to be grown.
Several factors are important in implementing your waste utilization plan in order to maximize
the fertilizer value of the waste and to ensure that it is applied in an environmentally safe manner:
1. Always apply waste based on the needs of the crop to be grown and the nutrient
content of the waste. Do not apply more nitrogen than the crop can utilize.
2. Soil types are important as they have different infiltration rates, leaching potentials,
cation exchange capacities, and available water holding capacities.
3. Normally waste shall be applied to land eroding at less than 5 tons per acre per
year. Waste may be applied to land eroding at 5 or more tons per acre annually, but
less than 10 tons per acre per year providing that adequate filter strips are established.
4. Do not apply waste on saturated soils, when it is raining, or when the surface is frozen
Either of these conditions may result in runoff to surface waters which is not allowed
under DWR regulations.
5. Wind conditions should also be considered to avoid drift and downwind odor
problems.
6. To maximize the value of the nutrients for crop production and to reduce the potential
for pollution, the waste should be applied to a growing crop or applied not more than
30 days prior to planting a crop or forages breaking dormancy. Injecting the waste or
disking will conserve nutrients and reduce odor problems.
1 of 11

This plan is based on the waste application method shown above. If you choose to change
methods in the future, you need to revise this plan. Nutrient levels for different application
methods are not the same.
The estimated acres needed to apply the animal waste is based on typical nutrient content
for this type of facility. In some cases you may want to have plant analysis made, which could
allow additional waste to be applied. Provisions shall be made for the area receiving waste to
be flexible so as to accommodate changing waste analysis content and crop type. Lime must
be applied to maintain pH in the optimum range for specific crop production.
This waste utilization plan, if carried out, meets the requirements for compliance with 15A NCAC
2H .0217 adopted by the Environmental Management Commission.
AMOUNT OF WASTE PRODUCED PER YEAR ( gallons, W, tons, etc.):
capacity Tyee Waste Produced per Animal Total
Farrow to Wean
3203 gal/yr
gallyr
Farrow to Feeder
3861 gallyr
gallyr
Farrow to Finish
10478 gallyr
gallyr
Wean to Feeder
191 gallyr
gallyr
to Finish
776 gallyr
gallyr
6120fWean
Feeder to Finish
927 gallyr
5,673,240 gallyr
Gilts
1015 gallyr
gallyr
Boars
2959 gal/yr
al/yr
Total 5,673,240 gallyr
AMOUNT OF PLANT AVAILABLE NITROGEN PRODUCED PER YEAR (Ibs):
CapacityCapacfty Ty pe Nitrogen Produced perAnimal Total
Farrow to Wean
3.84 Ibs/yr
Ibs/yr
Farrow to Feeder
6.95 Ibs/yr
Ibs/yr
Farrow to Finish
18.86 Ibs/yr
Ibs/yr
Wean to Feeder
0.34 lbs/yr
Ibslyr
Wean to Finish
1.4 Ibs/yr
Ibs/yr
6120
Feeder to Finish
1.67 Ibs/yr
10,220 Ibs/yr
Gifts
1.83 Ibs/yr
Ibs/yr
Boa rs
5.33 Ibs/yr
Ibs/yr
Total 10,220 Ibs/yr 71
Applying the above amount of waste is a big job. You should plan time and have appropriate
equipment to apply the waste in a timely manner.
LAND UTILIZATION SUMMARY
The following table describes the nutrient balance and land utilization rate for this facility
Note that the Nitrogen Balance for Crops indicates the ratio of the amount of nitrogen produced
on this facility to the amount of nitrogen that the crops under irrigation may uptake and utilize
in the normal growing season.
Total Irrigated Acreage: 83.43
Total N Required 1st Year: 23145.80
Total N Required 2nd Year: 0.00
Average Annual Nitrogen Requirement of Crops: 23,145.80
Total Nitrogen Produced by Farm: 10,220.40
Nitrogen Balance for Crops: (12,925.40)
The following table describes the specifications of the hydrants and fields that contain the crops
designated for utilization of the nitrogen produced on this facility. This chart describes the size,
soil characteristics, and uptake rate for each crop in the specified crop rotation schedule for this
facility.
2of11

Reception
Tract
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Benson
Area Specifications
Field
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
Irrigated
Arrea e
3.87
1-60
1.88
3,46
3.49
3.44
3.48
3.92
4.23
4,23
2.84
3.51
3.97
5.48
3.07
3.52
Soil
Type
j Autryville
Au isle
Autryville
Autryville
Autryville
Autryville
Aut 'Ile
Autryville
Autryville
Aut ills
Autryville
Autryville
Autryville
Autryville
1 Autryville
Autryville
1st Crop
Code
B
B
B
B/C
a/C
B/C
B/C
B/C
B/C
B/C
Q [GApr-Se
Q G
0 (G)
0 (G
Q SG)
Q G)
Time to
Apply
Mar -Sept
Mar -Sept
Mar -Sept
Mar -Se
Mar -Sept
Mar -Set
Mar -Sept
Mar -Sept
Mar -Sept
Mar-Seot
15
A Sept15
Apr-Sept15
Apr -Se t15
Apr -Se t15
r-Sepr15
1st Crop
Yield
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
5.0
5.0
5.0
5.0
5.0
5.0
1st Crop
Ibs N/Unit
36,75
36.75
36.75
42,88
42.88
42,88
42.88
42.88
42.88
42.88
40.50
40.50
4D.50
40.50
40.50
40.50
Lbs N/Ac Lbs N Total Ibs N
Residual /Ac Utilized
202.13 782.22
202.13 323.40
202.13 380.00
235.81 815.91
235.81 822.99
235.81 811.20
235.81 815.91
235.81 924.39
235.81 997.49
235.81 997.49
202.50 575.10
202.50 710.78
202.50 803.93
202.50 1109.70
202.50 621.68
202.50 712.80
2nd Crop Tlme to 2nd Crop 2nd Crop Lbs N/Ac Lbs N Total Ibs N
Code Apply Yield Ibs N/Unit Residual /Ac Utilized
K Sept -Apr 1 50 50 193.50
K Sept -Apr 1 50 50 80.00
K Se -Apr 1 50 50 94.00
K Sept -Apr 1 50 50 173.00
K Sept -Apr 1 50 50 174.50
K Se -Apr 1 50 50 172.00
K S® t-A r 1 50 50 173.00
K Sept -Apr 1 50 50 196.00
K Se -A r 1 50 50 211.50
K sw.AE 1 50 50 211.50
S Sept -Apr 1 75 1 75 213.00
S Se -A r 1 75 75 263.25
S Se -A r 1 75 75 297.75
S Sept -Apr 1 75 75 411.00
S Sept -Apr 1 75 75 230.25
S Sept -Apr 1 75 75 264,00
Total Total Ibs N
Lbs N/Ac Utilized
252.13
252.13
252.13
285.81
285.81
285.81
285.81
285.81
285.81
285.81
277.50
277.50
277.50
277.50
277.50
277.50
975.72
403.40
474.00
988.91
997.49
983.20
988.91
1120.39
1208.99
1208.99
788.10
974.03
1101.68
1520.70
851.93
976.80
Benson
Benson
Benson
Benson
Benson
Benson
19
20
Sub1
Sub2
Sub3
Sub4
'4.59
3.52
3.64
1.64
7.01
7.06
Norfolk
Autryville
Autryville
Autryville
Autryville
Autryville
B/C
Q G
B
B
B/C
Q G
Mar -Set
rS t15
Mar -Sept
Mar -Sept
Mar -Sept
Apr-Sept15
5.5
5.0
5.5
5.5
5.5
5.0
42.88
40.50
36.75
36-75
42.88
40.50
235.81
202.50
202.13
202.13
235.81
202.50
1082,38
712.80
735.74
331.49
1653.05
4429.65
K
S
K
K
K
S
I Sept -Apr
Sept -Apr
Sa t-Apr
Sa t-Apr
-Sept-Apr
Sept -Apr
1
1
1
1
1
1
50
75
50
50
50
75
50
75
50
50
50
75
229.50
264.00
182.00
82.00
350.50
529.50
285.81
277.50
252.13
252.13
285.81
277.50
1311.88
976.80
917.74
413.49
2003.55
1 1959.15
Totals: 83.43 18150.05 4995.75 23145.80
3(a) of 11

3(b) of 11

This plan does not include commercial fertilizer. The farm should produce adequate plant
available nitrogen to satisfy the requirements of the crops listed above.
The applicator is cautioned that P and K may be over applied while meeting the N requirements
In the future, regulations may require farmers in some parts of North Carolina to have a nutrient
management plan that addresses all nutrients. This plan only addresses nitrogen.
In interplanted fields ( i.e. small grain, etc, interseeded in bermuda), forage must be removed
through grazing, hay, and/or silage. Where grazing, plants should be grazed when they
reach a height of six to nine inches. Cattle should be removed when plants are grazed to a
height of four inches. In fields where small grain, etc, is to be removed for hay or silage, care
should be exercised not to let small grain reach maturity, especially late in the season (i.e.
April or May). Shading may result if small grain gets too high and this will definitely interfere
with stand of bermudagrass. This loss of stand will result in reduced yields and less nitrogen
being utilized. Rather than cutting small grain for hay or silage just before heading as is
the normal situation, you are encouraged to cut the small grain earlier. You may want to
consider harvesting hay or silage two to three times during the season, depending on the
time small grain is planted in the fall.
The ideal time to interplant small grain, etc, is late September or early October. Drilling is
recommended over broadcasting. Bermudagrass should be grazed or cut to a height of
about two inches before drilling for best results.
CROP CODE LEGEND
Crop Code
Crop
Description -Harvested As
A
- Barley
Grain Crop
B
Grazed Hybrid Bermudagrass
Pasture/Grazed
C
Hybrid Bermudagrass Hay
Hay
BIG
Comb_ Hybrid Bermudagrass
Graze/Hay Combination
D
Corn - Grain
Grain Crop
E
Corn - Silage
Silage
F
Cotton
Cotton Lint
G
Grazed Fescue
Pasture/Grazed
H
Fescue Hay
Hay
I
Oats
Grain Crop
J
Rye
Grain Crop
K
Grazed Overseed
Pasture/Grazed (Seeded in Bermudagrass)
L
Overseed Hay
Hay (Seeded in Bermudagrass)
M
Grain Sorghum
Grain Crop
N
Wheat
Grain Crop
O
Soybean
Grain Crop
P
Pine Trees
Pine Trees
S
Small Grain
Grain Crop/ Hay (After Grain Crop)
CC
Cover Crop
Not Harvested; Bumed/Disked In
Q
Millet
Hay (H) or Grazed (G)
Acres shown in the preceding table are considered to be the usable acres excluding
required buffers, filter strips along ditches, odd areas unable to be irrigated,
and perimeter areas
not receiving full application
rates due to equipment limitations. Actual total acres in the fields
listed may, and most likely will be, more than the acres shown in the tables.
See attached map showing the fields to be used for the utilization of animal waste.
4of11

SLUDGE APPLICATION:
The following table describes the annual nitrogen accumulation rate per animal
in the lagoon sludge
PAN/yr/animal
Farm T
Farrow to Wean
0.8
Farrow to Feeder
0.96
Farrow to Finish
3.9
Wean to Feeder
0.07
Wean to Finish
0.27
6120 Feeder to Finish
0.34 2080.8
Gilts
0.39
Boars
0.55
The waste utilization plan must contain provisions for periodic land application of sludge at
agronomic rates. The sludge will be nutrient rich and will require precautionary measures to
prevent over application of nutrients or other elements. Your production facility will produce
approximately 2080.8 pounds of plant available nitrogen per year and will accumulate in the lagoon
sludge based on the rates of accumulation listed above.
If you remove the sludge every 5 years, you will have approximately 10404 pounds of plant
available nitrogen to utilize. Assuming you apply this PAN to hybrid bermuda grass hayland at the
rate of 300 pounds of nitrogen per acre, you will need 34 acreas of land. If you apply the sludge
to corn at a rate of 125 pounds per acre, you will need 83.232 acres of land. Please note that these
are only estimates of the PAN produced and the land required to utilize that PAN. Actual values
may only be determined by sampling the sludge for plant available nitrogen content prior to application
Actual utilization rates will vary with soil type, crop, and realistic yield expectations for the specific
application fields designated for sludge application at time of removal.
APPLICATION OF WASTE BY IRRIGATION:
The irrigation application rate should not exceed the intake rate of the soil at the time of irrigation
such that runoff or ponding occurs. This rate is limited by initial soil moisture content, soil
structure, soil texture, water droplet size, and organic solids. The application amount should not
exceed the available water holding capacity of the soil at the time of irrigation nor should the
plant available nitrogen applied exceed the nitrogen needs of the crop.
If surface irrigation is the method of land application for this plan, it is the responsibility of the
producer and irrigation designer to ensure that an irrigation system is installed to properly
irrigate the acres shown in the preceding table. Failure to apply the recommended rates and
amounts of nitrogen shown in the tables may make this plan invalid.
*This is the maximum application amount allowed for the soil assuming the amount
of nitrogen allowed for the crop is not over applied. In many situations, the application
amount shown cannot be applied because of the nitrogen limitation. The maximum
application amount shown can be applied under optimum soil conditions.
Your facility is designed for >180 days of temporary storage and the temporary storage must
be removed on the average of once every 6 months. In no instance should the volume of the
waste stored in your structure be within the 25 year 24 hour storm storage or one foot of
freeboard except in the event of the 25 year 24 hour storm.
It is the responsibility of the producer and waste applicator to ensure that the spreader equipment
is operated properly to apply the correct rates to the acres shown in the tables. Failure to apply
the recommended rates and amounts of nitrogen shown in the tables may make this plan invalid.
Call your technical specialist after you receive the waste analysis report for assistance in
determining the amount of waste per acre and the proper application prior to applying the waste.
5of11

Application Rate Guide
The following is provided as a guide for establishing application rates and amounts.
Soil Application Rate Application Amount
Tract Hydrant Type __Crop in/hr *inches
Benson
3
Autryville
B
0.6 1
Benson
4
Autryville
B
0.6 1
Benson
5
Autryville
B
0.6 1
Benson
6
Autryville
B/C
0.6 1
Benson
7
Autryville
B/C
0.6 1
Benson
8
Autryville
B/C
0.6 1
Benson
9
Autryville
B/C
0.6 1
Benson
10
Autryville
B/C
0.6 1
Benson
11
Autryville
B/C
0.6 1
Benson
12
Autryville
B/C
0.6 1
Benson
13
Autryville
Q (G)
0.6 1
Benson
14
Autryville
Q (G)
0.6 1
Benson
15
Autryville
Q (G)
0.6 1
Benson
16
Autryville
Q (G)
0.6 1
Benson
17
Autryville
Q (G)
0.6 1
Benson
18
Autryville
Q (G)
0.6 1
Benson
19
Norfolk
B/C
0.5 1
Benson
20
Autryville
Q (G)
0.6 1
Benson
Subl
Autryville
B
0.6 1
Benson
Sub2
Autryville
B
0.6 1
Benson
Sub3
Autryville
B/C
0.6 1
Benson
Sub4
Autryville
Q (G)
0.6 1
6 of 11

Additional Comments:
This plan revised to show a crop chan,e from milletlsmall grain grazed to a
bermudaMrass hay/graze combination followed by overseed grazed for pulls
6-12, 19 and Sub 3.
All subfield acres are optional.
The overseed and small grain crops are to be grazed and are optional, however
some should be planted each year to allow for applications during the winter.
The bermudaq rass and the millet are both to be harvested by grazing.
The production and application rates were previously updated to reflect the
current rates as listed on the NCSU Nutrient Management website.
10-15-2019 NUP updated to remove pull 2 from the map
7 of 11

NUTRIENT UTILIZATION PLAN CERTIFICATION
Name of Farm: Benson Farm; AWS310039
Owner: Murphy -Brown, LLC dba smithfield Hog Production
Manager:
Owner/Manager Agreement:
Itwe understand and will follow and implement the specifications and the operation and
maintenance procedures established in the approved animal waste nutrient management
plan for the farm named above. Itwe know that any expansion to the existing design capacity
of the waste treatment and/or storage system, or construction of new facilities, will require a
new nutrient management plan and a new certification to be submitted to DWR before the new
animals are stocked.
Itwe understand that I must own or have access to equipment, primarily irrigation equipment,
to land apply the animal waste described in this nutrient management plan. This equipment
must be available at the appropriate pumping time such that no discharge occurs from the lagoon
in the event of a 25 year 24 hour storm. I also certify that the waste will be applied on the land
according to this plan at the appropriate times and at rates which produce no runoff.
This plan will be filed on site at the farm office and at the office of the local Soil and Water
Conservation District and will be available for review by NCDWR upon request.
Name of Facility Owner: Murphy -Brown, LLC dba smithfield Hog Production
Signature: NiLy - 22.. - �
IfIOVV7�4'�l Date
Name of Manager (if different from owner):
Signature:
Date
Name of Technical Specialist: Toni W. Kin
Affiliation: Smithfield Hog Production Division
Address: 2822 Hwy 24 West, PO Drawer 856 W
Warsaw, NC 28398
Telephone: [phone]
Signature: Ls-� - W.'.,... "
Date
8 of 11

NUTRIENT UTILIZATION PLAN
REQUIRED SPECIFICATIONS
Animal waste shall not reach surface waters of the state by runoff, drift, manmade
conveyances, direct application, or direct discharge during operation or land application.
Any discharge of waste which reaches surface water is prohibited.
2 There must be documentation in the design folder that the producer either owns or has an
agreement for use of adequate land on which to properly apply the waste. If the producer
does not own adequate land to properly dispose of the waste, he/she shall provide
evidence of an agreement with a landowner, who is within a reasonable proximity,
allowing him/her the use of the land for waste application. It is the responsibility of the
owner of the waste production facility to secure an update of the Nutrient Utilization Plan
when there is a change in the operation, increase in the number of animals, method of
application, recieving crop type, or available land.
3 Animal waste shall be applied to meet, but not exceed, the nitrogen needs for realistic
crop yields based upon soil type, available moisture, historical data, climatic conditions,
and level of management, unless there are regulations that restrict the rate of applications
for other nutrients.
4 Animal waste shall be applied to land eroding less than 5 tons per acre per year_ Waste
may be applied to land eroding at more than 5 tons per acre per year but less than 10 tons
per acre per year provided grass filter strips are installed where runoff leaves the field
(See USDA, NRCS Field Office Technical Guide Standard 393 - Filter Strips).
Odors can be reduced by injecting the waste or disking after waste application_ Waste
should not be applied when there is danger of drift from the land application field.
6 When animal waste is to be applied on acres subject to flooding, waste will be soil
incorporated on conventionally tilled cropland. When waste is applied to conservation tilled
crops or grassland, the waste may be broadcast provided the application does not occur
during a season prone to flooding (See 'Weather and Climate in North Carolina" for
guidance).
7 Liquid waste shall be applied at rates not to exceed the soil infiltration rate such that runoff
does not occur offsite or to surface waters and in a method which does not cause drift
from the site during application. No ponding should occur in order to control odor and
flies,
Animal waste shall not be applied to saturated soils, during rainfall events, or when the
surface is frozen.
9of11

NUTRIENT UTILIZATION PLAN
REQUIRED SPECIFICATIONS
9 Animal waste shall be applied on actively growing crops in such a manner that the crop is not
covered with waste to a depth that would inhibit growth. The potential for salt damage from
animal waste should also be considered.
10 Nutrients from waste shall not be applied in fall or winter for spring planted crops on soils with a
high potential for leaching. Waste/nutrient loading rates on these soils should be held to a
minimum and a suitable winter cover crop planted to take up released nutrients. Waste shall
not be applied more than 30 days prior to planting of the crop or forages breaking dormancy.
11 Any new swine facility sited on or after October 1, 1995 shall comply with the following: The
outer perimeter of the land area onto which waste is applied from a lagoon that is a component of
a swine farm shall be at least 50 feet from any residential property boundary and canal. Animal
waste, other than swine waste from facilities sited on or after October 11 1995, shall not be
applied closer than 25 feet to perennial waters.
12 Animal waste shall not be applied closer than 100 feet to wells.
13 Animal waste shall not be applied closer than 200 feet of dwellings other than those owned by
the landowner.
14 Waste shall be applied in a manner not to reach other property and public right-of-ways.
15 Animal waste shall not be discharged into surface waters, drainageways, or wetlands by discharge
or by over -spraying. Animal waste may be applied to prior converted cropland provided the fields
have been approved as a land application site by a "technical specialist". Animal waste shall not
be applied on grassed waterways that discharge directly into water courses, and on other grassed
waterways, waste shall be applied at agronomic rates in a manner that causes no runoff or drift
from the site.
16 Domestic and industrial waste from washdown facilities, showers, toilets, sinks, etc., shall not be
discharged into the animal waste management system.
10of11

NUTRIENT UTILIZATION PLAN
REQUIRED SPECIFICATIONS
17 A protective cover of appropriate vegetation will be established on all disturbed areas (lagoon
embankments, berms, pipe runs, etc.). Areas shall be fenced, as necessary, to protect the
vegetation. Vegetation such as trees, shrubs, and other woody species, etc., are limited to areas
where considered appropriate. Lagoon areas should be kept mowed and accessible. Berms and
structures should be inspected regularly for evidence of erosion, leakage, or discharge.
18 If animal production at the facility is to be suspended or terminated, the owner is responsible for
obtaining and implementing a "closure plan" which will eliminate the possibility of an illegal
discharge, pollution and erosion.
19 Waste handling structures, piping, pumps, reels, etc., should be inspected on a regular basis to
prevent breakdowns, leaks and spills. A regular maintenance checklist should be kept on site.
20 Animal waste can be used in a rotation that includes vegetables and other crops for direct human
consumption. However, if animal waste is used on crops for direct human consumption, it should
only be applied pre -plant with no further applications of animal waste during the crop season.
21 Highly visible markers shall be installed to mark the top and bottom elevations of the temporary
storage (pumping volume) of all waste treatment lagoons. Pumping shall be managed to
maintain the liquid level between the markers. A marker will be required to mark the maximum
storage volume for waste storage ponds.
22 Waste shall be tested within 60 days of utilization and soil shall be tested at least annually at crop
sites where waste products are applied. Nitrogen shall be the rate -determining nutrient, unless
other restrictions require waste to be applied based on other nutrients, resulting in a lower
application rate than a nitrogen based rate. Zinc and copper levels in the soil shall be monitored
and alternative crop sites shall be used when these metals approach excessive levels. pH shall be
adjusted and maintained for optimum crop production. Soil and waste analysis records shall be
kept for a minimum of five years. Poultry dry waste application records shall be maintained for a
minimum of three years. Waste application records for all other waste shall be maintained for a
minimum of five years.
23 Dead animals will be disposed of in a manner that meets North Carolina regulations.
11 of 11

Benson Farm
A WS310039
Sprayfields
Pull# Acres
2 2.46
3 3.87
4 1.60
5 1.88
6 3.46
7 3.49
8 3.44
9 3.46
10 3.92
11 4.23
12 4.23
13 2.84
14 3.51
15 3.97
16 5.48
17 3.07
18 3.52
19 4.59
20 3.52
Total 66.54
Total Fld 3 = 37.83 Ac.
Wetted = 30.82 Ac.
Sub 3 = 7.01 Ac.
6
-y", 7x/*� \\N
ecificationS: Pulls
3 Travelers w/Nelson 150
w/1.18" Nozzle ®50 PSI
205 GPM; 300' WD
Total Fld 2 = 5.12 Ac.
Wetted = 3.48 Ac.
Sub 2 = 1.64 Ac.
/ Hog
Houses Lagoon
IU W.
4 Digester
O
�L�
10
15
v
3
�p
ti
11
14
�p0
12
13
�O
19
ti
17
18
c� h
GRAPHIC SCALE
400 0 200 400
( IN FEET )
1 inch = 400 ft~
Total Fld 1 = 9.27 Ac.
Wetted = 6.33 Ac.
Sub 1 = 2.94 Ac.
y Total Fld 4 = 32.97 Ac.
j Wetted = 25.91 Ac.
Sub 4 = 7.06 Ac.
9-revised to reflect propos
addition

Sheet)
IRRIGATION SYSTEM DESIGN PARAMETERS
Landowner/Operator Name: Murphy -Brown, LLC - Benson Farm; AWS310039 County: Duplin
Address: P.O. Box 856 Wetted Acre
Warsaw, NC 28398 Recalculation Date: 5/30/2018
Telephone: [phone] Digester Add't. Revised: 10/2112019
Table 1 - Field Speclflcations
Approximate Maximum
Maximum Maximum Application
Useable Size Application per Irrigation
Field of Field Rate Cycle
Number (acres) Soil Tvoe Slone % Crnn(m IIn/hrl linMft­"
1
2
3
4
6.33
3.48
30.82
25.91
Aut ills
Aut ille
Aut ille
Aut ille
0-3
0-3
0-3
0-3
Bermuda / Overseed
Bermuda / Overseed
Millet / Small Grain
Millet / Small Grain
0.5
0.5
0.5
0.5
1
1
1
1
Pulls 2, 3
Pulls 4, 5
Pulls 6-12, 19
Pulls 13-18, 20
66.54

Sheet2
TABLE 2 - Travelling Irrigation Gun Settings
Make, Model and Type of Equipment: 3" Travelers w/Nelson 160 Big Gun Sprinklers
Field No.
and
Travel
Speed
Application
Rate
TRAVEL LANE
Effective Effective
Wetted
Diameter
Nozzle
Diameter
Operating
Pressure
Operating
Pressure
Arc
Hydrant No.
2
ft/min
2.99
in/hr.
0.38
Width ft
270
Len th ft
201
feet
300
inches
1.18
at Gun(psi)
50
at reel(psi)
90
Pattern Comments - Acres per pull
330 2.46
3
5.4812.99
0.6910.38
207/270
290/295
300
1.18
50
90
180/330
3.87
4
3.59
0.38
250
So
300
1.18
50
90
330
1.60
5
5.26
0.58
151
330
300
1.18
50
90
220
1.88
6
2.99
0.38
270
332
300
1.18
50
90
330
3.46
7
2.99
0.38
270
337
300
1.18
50
90
3$0
3.49
8
2.99
0.38
270
329
300
1.18
50
90
330
3.44
9
2.99
0.38
270
333
300
1,18
50
90
330
3.46
10
2.99
0.38
270
407
300
1.18
50
90
330
3.92
11
2.99
0.38
240
528
300
1.18
50
90
330
4.23
12
2.99
0.38
240
529
300
1.18
50
90
330
4.23
13
5.48/2.99
0.69/0.38
120/270
2581118
300
1.18
50
90
1801330
2.84
14
2.99
0.38
240
398
300
1.18
50
90
330
3.51
15
2.99
0.38
240
481
300
1.18
50
90
330
3.97
16
2.99
0.38
270
658
300
1.18
50
90
330
5.48
17
3.59
0.38
250
305
300
1.18
50
90
330
3.07
18
5.26/3.59
0.5610,38
1671250
150/283
300
1.18
50
90
2201330
3.52
19
2.99
0.38
270
514
300
1.18
50
90
330
4.59
20
2.99
0.38
270
372
300
1.18
50
90
330
3.62
f
TOTAL
66.54

Sheet3
TABLE 3 - Solid Set Irrigation Gun Settings
�. N..and Type of Equipment NIA
• . -• . _ •_ • •. • . 4• • ••

Sheet4
TABLE 4 - Irrigation System Specifications
Traveling
Solid Set
Irrigation Gun
Irrigation
Flow Rate of Sprinkler m
205
0
Operating Pressure at Pum(psi)
90.9
#DIV/01
Design Precipitation Rate in/hr
0.34
0.00
Hose Length feet
1000
XXXXXXXX
TYPe of Speed Compensation
Mechanical
XXXXXXXX
Pump T PTO, Engine, Electric
En ine
Engine
�Pump Power RequIrement h
#DIV/01
#DIV/0I
TABLE 5 - Thrust Block Specifications
6
4"
2"
THRUST BLOCK
THRUST BLOCK
THRUST BLOCK
LOCATION
AREA (sq. ft.
AREA W. ft.
AREA (sq. ft.
90 deqree bend
8.8
4.3
1.1
Dead End
6.2
3.0
0.8
Tee
4.4
2.1
0.5
Gate Valve
6.2
3.0
0.8
45 d ree bend
4.7
2.3
0.6
Page 1

Sheets
IRRIGATION SYSTEM DESIGNER
Name: Micah Kevin Weston, CID
Company: Murphy -Brown, LLC dba Smithfield Hog Production
Address: 2822 Hwy 24 West, P.O. Box 856 Warsaw, NC 28398
Phone: [phone]
Required Documentation
The following details of design and materials must accompany all irrigation designs:
1. A scale drawing of the proposed Irrigation system which includes hydrant locations, pipelines, thrust block locations and buffer areas where applicable.
2. Assumptions and computations for determining total dynamic head and horsepower requirements,
3. Computations used to determine all mainline and lateral pipe sizes.
4. Sources and/or calculations used for determining applicatlon rates.
5. Computations used to determine the size of thrust blocks and illustrations of all thrust block configuratlons required in the system
6. Manufacturer's specifications for the irrigation pump, traveler and sprinkler(s).
7. Manufacturer's specifications for the inigation pipe and/or USDA-NRCS standard for IRRIGATION WATER CONVEYANCE.
8. The information required by this form are the minimum requirements. It is the responsibility of the designer to consider all relevant factors at a particular site and
address them as appropriate.
9. Irrigation pipes should not be installed in lagoon or storage pond embankments without the approval of the designer.
NOTE: A buffer strip of 25' or wider must be maintained between the limits of the irrigation system and all
perennial streams and surface waters per NC Statutes.

Sheet6
Narrative of Irrigation System Operation
This design is a "wetted acreage" determination for an existing facility. The acres were calculated based on
the equipment specified and the charts created by NCSU for calculating Area Allowances for Hard Hose
Traveler Systems.
This recalculation of wetted acres dated 5/30/2018 is done due to obtaining a new GPS map of the fields,
Refer to owner's manual and irrigation dealer for Information on maintenance, winterization, and operation of
system.
This revision dated 1 0/21/2019 done to reflect the shortening of pull 2 due to the proposed installation of a
digester.

Sheet7
CALCULATIONS
Sprinkler S ecific#ions
Sprinkler Type: Nelson 150
Nozzle Size:
1.18 inches
Sprinkler Pressure:
50 psi
Flowrate(GPM):
205 gpm
Wetted Diameter:
300 feet
Lane Spacings
Desired Spacing (%):
70 %
Design Spacing(feet):
210 'PVC irrigation pipe normally comes in 20' pieces,
so round to the nearest multiple of 20.
Actual Spacing (feet):
240 feet
Actual Spacing (%):
80 %
Application Rate
Application Rate =(96.3xFlowrate)/(3.1415x(.9xradius)squared)
Design App. Rate =
0.34 in/hr
300 degree arc =
0.41 in/hr 330 degree are = 0.38 in/hr
220 degree arc =
0.56 in/hr
180 degree arc =
0.69 in/hr
Traveller Speed
Travel speed = 1.605 x Flowrate / Desired application amount x Lane Spacing
Desired app. (in.) = 0.5 inches 360 degree arc = 2.74 ft/min
300 degree arc = 3.29 ft/min 330 degree arc = 2.99 fUrnin
220 degree arc = 4.39 ft/min
180 degree arc = 6.48 ft/min
Mainline Velocity
Velocity = .408 x Fiowrate / pipe diameter squared feet/sec."
"For buried pipelines, velocity should be below 5 feet per second
Pipe size: 6 inches
Velocity-- 2.32 ft/sec.
Page 1

Sheet?
CALCULATIONS
SvrinklerSpecifications
Sprinkler Type: Nelson 150
Nozzle Size:
1.18 inches
Sprinkler Pressure:
50 psi
Flowrate(GPM):
205 gpm
Wetted Diameter:
300 feet
Lane Soacinas
Desired Spacing (%):
70 %
Design Spacing (feet).
210 `PVC ifrigation pipe normally comes in 20' pieces,
so round to the nearest multiple of 20.
Actual Spacing (Beet):
200 feet
Actual Spacing (%):
67 %
Application Rete
Application Rate =(96.3xFlowrate)/(3.1416x(.9xradius)squared)
Design App. Rate =
0.34 in/hr
300 degree are =
0.41 in/hr 330 degree arc = 0.38 in/hr
220 degree arc =
0,56 in/hr
180 degree arc =
0.69 in/hr
Traveller Speed
Travel speed = 1.605 x Flowrate / Desired application amount x Lane Spacing
Desired app. (in.) = 0.5 inches 360 degree arc = 3.29 ft/min
300 degree arc = 3.95 ft/min 330 degree arc = 3.59 ft/min
220 degree arc = 5.26 ft/min
180 degree arc = 6.58 ft/min
Mainline Velocity
Velocity = .408 x Flowrate / pipe diameter squared feet/sec.**
"For buried pipelines, velocityshould be below 5 feet per second
Pipe size: 6 inches
Velocity= 2.32 ft/sec.
Page 1

Sheet8 (2)
Benson Farm;
Acrt2gR Calculations
AWS310039
5/3=018
Total
Pull Acres
Width
270 j
Start End
Revised 10/2112019
Stop End
Acres
Total Acres
Pull #
2
Length
midsec' n
�mldsection
N�
lici
201
296
1.246
--
1.246
0.880
D. 550
6.000
0.000
2.46
3-8
3
270
250
1.378
3.207
0.660
0.000
1.829
0,000
0.287
0-00
1.60
1.88
3.46
4
5
6
.7
8
9
10
._211
50
0,287
1.144
2.058
0.728
0.588
151
330
1.144
2.058
0.440
0.294
0.630
0.630
0.630
270
270
332
0.770
0.770
337
2.089
2.089
2,039
3.49
270
329
2.039
0.770
3.44
3.46
3.92
4.23
4.23
2.84
0.00
270
333.
407
528
i� 26
258
2.064
2.523
2.909
2.915
0.711
2.064
0.770
0.770.
0.730
0.630
270
2.523
0.630
11
240
2.909
0.590
0.590
12
240
2.915
0.730
13
120
270
1.442
0.770
6.-6-3-0
0.000
118
0.731
0.000
0.000
14
15
16
17
240
iF8--
1 93
2.193
2.650
2.193
0.730
0.590
0.590
1 0.630
3.51
240
270
481
658
2.650
0.730
0.770
3.97
4.079
4.079
1.750
5.48
3.07
305
1.750
0.728
0,588
150
0.575
1.624
... ..... . .. ....
2.199
D.728
0.588
3.52
250
283
0,000
0.000
10.00
4.59
19
270
3.186
0.770
.0.000
0.630
-20
0
0
37-2
0
0
2,306
2.306
0.660
0.000
0.D00
0.000
0.000
0.550
3.52
0.000
0.000
0.000
0.000
0.00
0.000
0.000
0.00
0
0.000
0.000
0.000
0.000
0.00
0
0
0.000
0.000
0.666
0.D0O
0.00
0
0
0.000
0.000
0.000
0.000
0
0
0.0000.000
10.01)
0.00
0.00
66.54
0.000
0.000
0,000 0.000
O.Oop
0.000
0.000
0.000
0.000
0
0.000
0.000
0.000
I
Total Acres
Page 1

EMERGENCY ACTION PLAN
PHONE NUMBERS
DIVISION OF WATER QUALITY (DWQ) It) _—_-29 (C _1A 15-
EMERGENCY MANAGEMENT SERVICES (EMS) '-1 t7 - to - La Q�
SOIL AND WATER CONSERVATION DISTRICT (SWCD) q t5� �0 - ata0
NATURAL RESOURCES CONSERVATION SERVICE (NRCS) C-1 lG 1p-a.I0-d
COOPERATIVE EXTENSION SERVICE (CES) q t 0 -- actto _ a11AS
This plan will be implemented in the event that wastes from your operation are leaking,
overflowing or running off site. You should not wait until wastes reach surface waters or
leave your property to consider that you have a problem. You should make every effort to
ensure that this does not happen. This plan should be posted in an accessible location
for all employees at the facility. The following are some action items you should take.
1.
Stop the release of wastes. Depending on the situation, this may or may not be possible. Suggested
responses to some possible problems are listed below.
A.
Lagoon overflow - possible solutions are:
a)
Add soil to berm to increase elevation of dam.
b)
Pump wastes to fields at an acceptable rate.
c)
Stop all flow to the lagoon immediately.
d)
Call a pumping contractor.
e)
Make sure no surface water is entering lagoon.
B.
Runoff from waste application field -actions include:
a)
Immediately stop waste application.
b)
Create a temporary diversion to contain waste.
c)
Incorporate waste to reduce runoff.
d)
Evaluate and eliminate the reason(s) that cause the runoff_
e)
Evaluate the application rates for the fields where runoff occurred.
C.
Leakage from the waste pipes and sprinklers - action include:
a)
Stop recycle pump.
b)
Stop irrigation pump.
c)
Close valves to eliminate further discharge.
d)
Repair all leaks prior to restarting pumps.
D.
Leakage from flush systems, houses, solid separators - action include:
a)
Stop recycle pump.
b)
Stop irrigation pump.
c)
Make sure siphon occurs.
d)
Stop all flow in the house, flush systems, or solid separators.
E.
Leakage from base or sidewall of lagoon. Often this is seepage as opposed to flowing leaks -
possible action:
a)
Dig a small sump or ditch from the embankment to catch all seepage, put in a submersible
pump, and pump back to lagoon.
b)
If holes are caused by burrowing animals, trap or remove animals and fill holes and
compact with a clay type soil.
c)
Have a professional evaluate the condition of the side walls and the lagoon bottom as soon
as possible.

2. Assess the extent of the spill and note any obvious damages.
a. Did the waste reach surface waters?
b. Approximately how much was released and for what duration?
c. Any damage notes, such as employee injury, fish kills, or property damage?
d. Did the spill leave the property?
e. Does the spill have the potential to reach surface waters?
f. Could a future rain event cause the spill to reach surface waters?
g. Are potable water wells in danger (either on or off the property)?
h. How much reached surface waters?
3. Contact appropriate agencies.
a. During normal business hours call your DWQ regional office; Phone #, After hours,
emergency number: [phone]. Your phone call should include: your name, facility
number, telephone number, the details of the incident from item 2 above, the exact
location of the facility, the location or direction of the movement of the spill, weather and
wind conditions. The corrective measures that have been under taken, and the
seriousness of the situation.
b. If the spill leaves property or enters surface waters, call local EMS phone number.
c_ Instruct EMS to contact local Health Department.
d. Contact CE's phone number, local SWCD office phone number and the local NRCS
office for advice / technical assistance phone number.
4. If none of the above works call 911 or the Sheriffs Department and explain your problem to
them and ask the person to contact the proper agencies for you.
5. Contact the contractor of your choice to begin repair or problem to minimize offsite damage.
a. Contractors Name: Murphy Brown LLC
b. Contractors Address: P.O. Box 856, Warsaw, NC 28398
c . Contractors Phone: [phone]
6. Contact the technical specialist who certified the lagoon (NRCS, Consulting Engineer, etc.)
a. Name: Kraig Westerbeek
b. Phone: r910i 293 - 5330
7. Implement procedures as advised by DWQ and technical assistance agencies to rectify the
damage, repair the system, and reassess the waste management plan to keep problems
with release of wastes from happening again.

INSECT CONTROL CHECKLIST FOR ANIMAL OPERATIONS
Source Cause
BMP's to Minimize Odor Site Specific Practices
(Liquid Systems)
Flush Gutters Accumulation of solids
(✓) Flush system is designed and operated
sufficiently to remove accumulated
solids from gutters as designed.
() Remove bridging of accumulated solids at
discharge
Lagoons and Pits Crusted Solids
(✓) Maintain lagoons, settling basins and
pits where pest breeding is apparent to
minimize the crusting of solids to a depth
of no more than 6-8 inches over more than
30% of surface.
Excessive Decaying vegetation
Vegetative Growth
()Maintain vegetative control along banks of
lagoons and other impoundment's to prevent
accumulation of decaying vegetative matter
along water's edge on impoundment's perimeter.
(Dry Systems)
Feeders Feed Spillage
() Design, operate and maintain feed systems (e.g.,
bunkers and troughs) to minimize the accumulation
of decaying wastage.
() Clean up spillage on a routine basis (e.g. 7-10 day
interval during summer; 15-30 day interval during winter).
Feed Storage Accumulation of feed
() Reduce moisture accumulation within and around
residues
immediate perimeter of feed storage areas by
insuring drainage away from site and/or providing
adequate containment (e.g., covered bin for
brewer's grain and similar high moisture grain
products).
() Inspect for and remove or break up accumulated
solids in Filter strips around feed storage as needed.
Animal Holding Accumulation of animal
Areas wastes and feed wastage
(} Eliminate low area that trap moisture along fences
and other locations where waste accumulates and
disturbance by animals is minimal.
() Maintain fence rows and filter strips around animal
holding areas to minimize accumulations of wastes
(i.e. inspect for and remove or break up accumulated
solids as needed).
MIC — November 11. 1996
10

Dry Manure Handling Accumulations of animal () Remove spillage on a routine basis (e.g. 7-10 day
Systems wastes interval during summer; 15-30 days interval during
Writer) where manure is loaded for land application
or disposal.
() Provide for adequate drainage around manure stockpiles
() Inspect for and remove or break up accumulated wastes
in filter strips around stockpiles and manure handling
areas as needed.
The issues checked () pertain to this operation. The landowner -integrator agrees to use
sound judgment in applying insect control measures as practical.
I certify the aforementioned insect control Best Management Practices have been
reviewed with me.
(Landowner Signature)
For more information contact the Cooperative Extension Service, Department of Entomology, Box
7613, North Carolina State University, Raleigh, NC 27695-7613.
AMIC -- November 11, 1996
11

SWINE FARM WASTE MANAGEMENT ODOR CONTROL CHECKLIST
Source Cause BMP's to Minimize Odor Site Specific Practices
Farmstead Swine production (-)Vegetative or wooded buffers:
(-')Recommended best management
practices;
(✓)Good judgment and common sense
Animal body Dirty manure ( )Dryfloors
surfaces covered animals
Floor surfaces Wet manure -covered
floors
Manure collection Urine
pits
Partial microbial
decomposition
(✓)Slotted floors;
(V)Waterers located over slotted floors;
(✓)Feeders at high end of solid floors;
(v)Scrape manure buildup from floors;
( )Underfloor ventilation for drying
(✓)Frequent manure removal by flush, pit
recharge or scrape
( )Underfloor ventilation
Ventilation
Volatile gases
(-)Fan maintenance;
exhaust fans
Dust
(✓)Efficient air movement
Indoor surfaces
Dust
(✓)Washdown between groups of animals
( )Feed additives;
( )Feeder covers;
( )Feed delivery downspout extenders to
feeder covers
Flush Tanks
Agitation of recycled
( )Flush tank covers
lagoon liquid while tanks
( )Extend fill lines to near bottom of tanks
are filling
with anti -siphon vents
Flush alleys
Agitation during waste
( )Underfloor flush with underfloor
water conveyance ventilation
Pit recharge
Agitation of recycled
( )Extend recharge lines to near bottom of
points
lagoon liquid while pits
pits with anti -siphon vents
are filling
Lift stations
Agitation during sump
( )Sump tank covers
tank filling and drawdown
Outside drain
Agitation during waste
( )Box Covers
collection or
water conveyance
junction boxes
End of drain
Agitation during waste
( )Extend discharge point of pipes
pipes at Lagoon
water
underneath lagoon liquid level
Lagoon surfaces Volatile gas emissions
Biological mixing
Agitation
Irrigation sprinkler High pressure agitation
nozzles Wind draft
AMOC — November 11, 1996
(-')Proper lagoon liquid capacity
(✓)Correct lagoon startup procedures
( )Minimum surface area -to -volume ratio
(-')Minimum agitation when pumping
( )Mechanical aeration
( )Proven biological additives
(✓)Irrigate on dry days with little or no wind
(V)Minimum recommended operation pressure
(✓)Pump intake near lagoon liquid surface
( )Pump from second -stage lagoon
12

Storage tank or Partial microbial _(_)Bo
ttom or midlevel loading
basin surface decomposition Mixing while ( )Tank covers
filling Agitation when emptying( )Basin surface mats of solids
( )Proven biological additives or oxidants
Settling basin Partial microbial deoom- ( )Extend drainpipe outlets underneath liquid
surface position Mixing while filling level
Agitation when emptying ( )Remove settled solids regularly
Manure, slurry or
sludge spreader
outlets
Agitation when spreading
Volatile gas emissions
Dead animals Carcass decomposition
ueac animal
Carcass decomposition
disposal pits
Incinerators
Incomplete combustion
Standing water
improper drainage
around facilities
Microbial decomposition of
organic matter
Manure tracked Poorly maintained access
onto public roads roads
from farm access
Additional Information:
( )Soil injection of slurry/sludges
( )Wash residual manure from spreader after use
( )Proven biological additives or oxidants
( )Proper disposition of carcasses
{ )Complete covering of carcasses in burial pits
( )Proper location / construction of disposal pits
( )Secondary stack burners
(-')Farm access road maintenance
away from facilities
(V)Farm access road maintenance
Available From:
Swine Manure Management 0200 Rule / BMP Packet NCSU-County Extension Center
Swine Production Farm Potential Odor Sources and Remedies, EBAE Fact Sheet NCSU-BAE
Swine Production Facility Manure Management:Pit Recharge --Lagoon Treatment: EBAE 128-88NCSU-BAE
Swine Production Facility Manure Management: Underfloor Fluse-Lagoon Treatment 129-88NCSU-BAE
Lagoon Design and Management for Livestock Manure Treatment and Storage; EBAE103-83NCSU-BAE
Calibration of Manure and Wastewater Application Equipment EBAE Fact Sheet NCSU-BAE
Controlling Odors from Swine Buildings; PIH-33 NCSU-Swine Extension
Environmental Assurance Program: NPPC Manual NC Pork Producers
Assoc
Options for Managing Odor; a report from the Swine Odor Task Force NCSU Agri Communication
Nuisance Concerns in Animal Manure Management: Odors and Flies; PR0101, Florida Cooperative Extension
1995 Conference Proceedings
The issues checked ( ) pertain to this operation. The landowner / integrator agrees to
use sound judgment in applying odor control measures as practical.
I certify the aforementioned odor control Best Management Practices have been reviewed
with me.
II �1-
' (Landowner Signature)
13

Version ---November 26, 2018
Mortality Management Methods
Indicate which methods) will be implemented.
When selecting multiple methods indicate a primary versus secondary option.
Methods other than those listed must be approved by the State Veterinarian.
Primary Secondary Routine Mortality
Burial three feet beneath the surface of the ground within 24 hours of knowledge of animal
death. The burial must be at least 300 feet from any flowing stream or public body of water
(G.S.106-403). The bottom of the burial pit should be at least one foot above the seasonal
high water table. Attach burial location map and plan.
El ® Landfill at municipal solid waste facility permitted by NC DEQ under GS 15A NCAC
13B .0200.
XRendering at a rendering plant licensed under G.S. 106-168.7
Complete incineration according to 02 NCAC 52C .0102.
D a A composting system approved and permitted by the NC Department of Agriculture & Con-
sumer Services Veterinary Division (attach copy of permit). If compost is distributed off -farm,
additional requirements must be met and a permit is required from NC DEQ.
D a In the case of dead poultry only, placing in a disposal pit of a size and design approved by the
NC Department of Agriculture & Consumer Services (G.S. 106-549.70).
❑ Any method which, in the professional opinion of the State Veterinarian, would make possible
the salvage of part of a dead animal's value without endangering human or animal health.
(Written approval by the State Veterinarian must be attached).
Mass Mortality Plan
Mass mortality plans are required for farms covered by an NPDES permit. These plans are
also recommended for all animal operations. This plan outlines farm -specific mortality man-
agement methods to be used for mass mortality. The NCDA&CS Veterinary Division sup-
ports a variety of emergency mortality disposal options; contact the Division for guidance.
• A catastrophic mortality disposal plan is part of the facility's CAWMP and is activated
when numbers of dead animals exceed normal mortality rates as specified by the State
Veterinarian.
• Burial must be done in accordance with NC General Statutes and NCDA&CS Veterinary
Division regulations and guidance.
• Mass burial sites are subject to additional permit conditions (refer to facility's animal
waste management system permit).
• In the event of imminent threat of a disease emergency, the State Veterinarian may enact
additional temporary procedures or measures for disposal according to G.S. 106-399.4.
Signature of Farm Owner/Manager
Signature of Technical Special
Date
Date

Place holder for:
Operation &
Maintenance
Plan
Will be sent at later date.
Kendal Williamsr

Smithfield.
600A food. 'Rmponib(�'
PO Box 856
Warsaw, NC 28398
January 2, 2020
Ms. Christine Lawson
Water Quality Permitting Section
Animal Feeding Operations Program
1636 Mail Service Center
Raleigh, NC 27699-1636
Re: Benson Farm (31-039) Site Plan ADDENDUM
Dear Ms. Lawson:
Smithfield Hog Production had previously submitted a Swine Digester Application for the Benson Farm.
Due to an oversight (2) documents were missing. They are listed below and included via attachment.
The following items are included in this package:
• NUP Certification signature page
• O&M Plan
Thank you for taking the time to review this project. Please contact me at [phone] or
[e-mail] if you have any questions or need additional information.
Sincerely,
rL
Kendal Williams
Project Engineer

NUTRIENT UTILIZATION PLAN CERTIFICATION
Name of Farm: Benson Farm; AWS310039
Owner: Murphy -Brown, LLC dba smithfield Hog Production
Manager:
Owner/Manager Agreement:
I/we understand and will follow and implement the specifications and the operation and
maintenance procedures established in the approved animal waste nutrient management
plan for the farm named above. Ilwe know that any expansion to the existing design capacity
of the waste treatment and/or storage system, or construction of new facilities, will require a
new nutrient management plan and a new certification to be submitted to DWR before the new
animals are stocked.
I/we understand that I must own or have access to equipment, primarily irrigation equipment,
to land apply the animal waste described in this nutrient management plan. This equipment
must be available at the appropriate pumping time such that no discharge occurs from the lagoon
in the event of a 25 year 24 hour storm. I also certify that the waste will be applied on the land
according to this plan at the appropriate times and at rates which produce no runoff.
This plan will be filed on site at the farm office and at the office of the local Soil and Water
Conservation District and will be available for review by NCDWR upon request.
Name of Facility Owner: Murphy -Brown, LLC dba smithfield Hog Production
Signature: — k C1
Date
Name of Manager (if different from owner):
Signature: _
Date
Name of Technical Specialist: Toni W. King _
Affiliation: _ Smithfield Hog Production Division
Address: 2822 Hwy 24 West, PO Drawer 856 _
Warsaw, NC 28398
Telephone: [phone]
Signature: 2- u3. W'. k
Date
8of11

Anaerobic Digester System O&M
Table of Contents
I. Definitions.............................................................................................................................................2
II. Introduction...........................................................................................................................................3
III. Description of the Operational Components....................................................................................3
1) Gravity Collection Pipe..................................................................................................................4
2) Influent Pump Station (where necessary).....................................................................................4
3) Anaerobic digester........................................................................................................................5
4) Mixing Pump Station.....................................................................................................................6
5) Effluent Pump Station (where necessary).....................................................................................6
6) Storage Basin.................................................................................................................................7
7) Unison Conditioning System.........................................................................................................7
8) Flare..................................................................................................................:............................8
9) Transfer Pump...............................................................................................................................8
10) Stormwater Removal Pump......................................................................................................8
IV. Description of Anticipated Maintenance..........................................................................................9
A. Routine System Maintenance Instructions.......................................................................................9
B. Troubleshooting................................................................................................................................9
C. Emergency Protocols, Repair, and Replacement............................................................................10
D. Warranty Information.....................................................................................................................10
1) Farm Site......................................................................................................................................10
V. Provisions for Safety Measures...........................................................................................................11
VI. Spill Prevention and Control Provisions..........................................................................................11
Appendix A: Contact Information.............................................................................................................12
Appendix B: Farm Operations and Maintenance Checklist......................................................................14
Anaerobic Digester System O&M Page 1 of 15

Definitions
Anaerobic Diriestion - A method of wastewater treatment that utilizes the natural
decomposition of the waste by bacteria in the absence of oxygen to produce gases commonly
referred to as biogas.
Anaerobic Digester - A basin or tank that holds the wastewater for anaerobic digestion.
Biogas - Produced by anaerobic digestion, and is typically comprised of approximately 55%
methane (the primary constituent of natural gas), with the remainder being mostly carbon
dioxide (CO2).
Tailgas - The "waste" or residual gas that is removed by the PSA system, which includes carbon
dioxide (CO2) and hydrogen sulfide (HzS).
Anaerobic Digester System O&M Page 2 of 15

II. Introduction
The proposed swine manure biogas project uses anaerobic digestion of hog barn waste to
produce biogas (consisting of approximately 65% methane, which is the primary constituent of
natural gas) which is collected, conditioned, and ultimately injected into the utility's natural gas
pipeline. Each hog farm site includes influent collection piping from the hog barns, an anaerobic
digester or covered lagoon, a digester mixing system, a biogas conditioning system to remove
moisture, a back-up flare unit, and a biogas transfer pipe leading to the Gas Upgrading System
(GUS).
The anaerobic digesters at each farm site include an HDPE membrane cover to capture the
biogas generated by the anaerobic digestion process. The anaerobic digester is partially mixed
by pumping, and provides sufficient detention time to effectively reduce the volatile suspended
solids in the raw waste by anaerobic digestion. The reduction of volatile solids through
microbial processes produces an energy -rich biogas, which is a valuable commodity.
There are two (2) types of solids found in liquid waste: organic and inorganic. The inorganic
solids are "non -treatable," but they are normally present in such small quantities that they are
considered insignificant in the treatment process. However, excessive quantities of sand, grit,
clay, etc. can cause the need to pump out the lagoons more often.
The organic solids will break down and decompose by biochemical reduction. The bacteria that
is grown and maintained in the system are harmless anaerobic and aerobic bacteria. Bound
oxygen can be found in nitrates, a compound that results from the aeration process. These
same bacteria are provided by nature and are found in streams, lakes, and in the soil to destroy
dead plants and animals. The difference is that in the treatment process, man has provided an
ideal environment for a concentration of these bacteria to feed and grow; thus, the biological
action is greatly accelerated. Raw wastes are the food for the bacteria in the system. The
anaerobic digester contains certain populations of bacteria that do not require the presence of
oxygen.
In addition to the information covered by this manual, the system operator should become
familiar with the characteristics of the wastewater being treated and with local, state, and
federal laws which may apply to the operation of the system.
Design Flow - The waste collection system, influent pump station (where necessary), and
anaerobic digester systems have been designed to handle the Average Daily Flow Rate (ADF) of
the farms in which they are connected, including the manure and wastes generated by the
animals, flushing liquids, and other wastes typical of confined swine animal housing. All
treatment units were designed for the Design Flow for continuous, seven (7) days per week
operation.
III. Description of the Operational Components
Below are listed the major component operations.
Anaerobic Digester System O&M Page 3 of 15

1) Gravity Collection Pipe
The gravity collection pipe receives the flushed waste from the hog barns and directs
that waste to the influent pump station (or mixing pump station, where applicable).
During normal operation, the pipe should be free -flowing, with no clogs present, in
order to transport waste to the influent pump station. The gravity collection pipe
includes a series of clean -outs that provide access to the gravity collection pipe for
removal of a clog or blockage via use of a sewer snake or similar apparatus should the
need arise.
Sending flushed waste from the hog barns to the gravity collection pipe is the farmer's
responsibility. The operator of the biogas system should periodically check each hog
barn waste outlet to ensure that there are no overflows, clogs, etc. The influent pump
station includes an analog run-time meter for each pump, which can be monitored by
the operator to ensure the pumps are operating for sufficient times to indicate proper
flushing by the farm owner.
2) Influent Pump Station (where necessary)
The influent pump station receives waste from the gravity collection pipe and pumps
that waste to the anaerobic digester via buried forced main. The waste enters the
digester at the opposite end of the digester outlet (so "new" waste must flow through
the curtain baffle system of the digester, resulting in effective treatment of the waste).
During normal operation, the pump station will run based on the liquid level in the wet
well, which is triggered by 4 floats.
The lowest float is the "pump off" float, and is set at approximately 12" above the
bottom of the wet well. The pump station should not run if the liquid level is below this
float.
The 2"d lowest float is the "lead pump on" float, and is set at an elevation approximately
2" below the inlet pipe invert, and above the "lead pump off" float. When the liquid
level is above this float, only one pump will run at any given time, where the pumps will
alternate between cycles (Pump 1 will run while Pump 2 is off, and in the next cycle
Pump 2 will run while Pump 1 is off, and so on).
The 3rd lowest float is the "lag pump on" float, and is set approximately 6" above the
"lead pump on" float. If the liquid level fills above this float, then both pumps will run
until the "pump off" float is disengaged.
The 4th and highest float is the "high level alarm" float. When the liquid level is above
this float, an audible and visual alarm is triggered to alert the operator via telemetry
system that there is a problem that has prevented pump operation.
The pipe from each of the two pumps goes through a check valve (which only allows the
liquid to travel in one direction) and a plug valve (normally open, but can be closed
Anaerobic Digester System O&M Page 4 of 15

when needed, such as when servicing the upstream pump). The two pipes join together
by a tee, and the downstream pipe leads to the inlet of the digester.
During normal operation, the pumps may run several times an hour to pump waste to
the anaerobic digester. Only one pump will run at any given time, normally, where the
pumps will alternate between cycles (Pump 1 will run while Pump 2 is off, and in the
next cycle Pump 2 will run while Pump 1 is off, and so on). It is not uncommon,
however, for both pumps to operate during higher inlet flows.
The pumps can also be controlled manually, if desired, or in times of troubleshooting,
etc. The control panel next to the pump station includes toggle switches for each pump,
which can be set to either (1) Auto (for normal float -based operation), (2) Off, or (3)
"Hand" (i.e., manual operation).
The alternating of pumps can also be changed within the control panel, where a toggle
switch allows the operator to choose "Lock 1", "Alternate", or "Lock 2". During normal
operation, the toggle switch will remain at "Alternate" in order to alternate the pumps
between pumping cycles, but the operator can choose to lock the use of Pump #1 or
lock the use of Pump #2 if needed.
In the event of a pipe clog or pump failure, the waste will flow through the gravity
"digester bypass" pipe connecting the interior of the pump station to the existing lagoon
at an elevation below the top of the wet well, which will avoid overflow of the pump
station.
Note: Some farms do not have Influent Pump Stations; rather than using an Influent
Pump Station, the waste flows from the barns to the Mixing Pump Station or flows
directly into the digester via gravity.
3) Anaerobic digester
The anaerobic digester receives all raw wastes from the hog barns. The complex organic
wastes are broken down to simpler compounds by the anaerobic digestion process. As
a part of the anaerobic process, bio gases (including methane, carbon dioxide, and
hydrogen sulfide) are produced. These gases are captured by an impermeable cover
and then directed to the Unison conditioning system. The gases are collected in
perforated piping underneath the cover, which are connected to a main pipe that
connects to the conditioning system. The wastes are held for about 45 days to allow the
biological process to complete. The sludge that settles at the bottom of the digester is
periodically removed by connecting portable pipes and pumps to the sludge removal
pipes in the digester, and disposed of by permitted means on the farm or by a contract
sludge hauler.
During normal operation, the digester cover will likely be "inflated" like a balloon due to
the biogas that's trapped beneath. The cover should be free of excessive accumulation
of rainwater, and should not show signs of any damage or leaks. The presence of foul
odor, a strong wastewater smell, or "dirty" water on the cover may indicate that there is
a leak. If such odors or dirty water are observed, the operator should carefully inspect
Anaerobic Digester System O&M Page 5 of 15

the cover for leaks, and take action to repair the cover temporarily with adhesive tape.
Temporary repairs should be followed with a permanent repair or patch as soon as
possible.
4) Mixing Pump Station
The mixing pump station slowly mixes the waste that has been collected in the
anaerobic digester, which provides for more efficient methane production than would
be achievable without any mixing.
During normal operation, the pumps will run at the same time for several hours per day
to mix the waste in the anaerobic digester. A common schedule for the pumps would
be 6 hours on, then 6 hours off, and so on.
The pumps can also be controlled manually, if desired, or in times of troubleshooting,
etc. The control panel next to the pump station includes toggle switches for each pump,
which can be set to either (1) Auto (for normal operation), (2) Off, or (3) "Hand" (i.e.,
manual operation).
5) Effluent Pump Station (where necessary)
The effluent pump station receives waste from the anaerobic digester and pumps that
waste to the lagoon via buried force main. The waste enters the effluent pump station
at the opposite end of the digester inlet (so "new" waste must flow through the curtain
baffle system of the digester, resulting in effective treatment of the waste).
During normal operation, the pump station will run based on the liquid level in the wet
well, which is triggered by 4 floats.
The lowest float is the "pump off" float, and is set at approximately 12" above the
bottom of the wet well. The pump station should not run if the liquid level is below this
float.
The 2nd lowest float is the "lead pump on" float, and is set at an elevation approximately
2" below the inlet pipe invert, and above the "lead pump off" float. When the liquid
level is above this float, only one pump will run at any given time, where the pumps will
alternate between cycles (Pump 1 will run while Pump 2 is off, and in the next cycle
Pump 2 will run while Pump 1 is off, and so on).
The 3rd lowest float is the "lag pump on" float, and is set approximately 6" above the
"lead pump on" float. If the liquid level fills above this float, then both pumps will run
until the "pump off" float is disengaged.
The 4th and highest float is the "high level alarm" float. When the liquid level is above
this float, an audible and visual alarm is triggered to alert the operator via telemetry
system that there is a problem that has prevented pump operation.
Anaerobic Digester System O&M Page 6 of 15

The pipe from each of the two pumps goes through a check valve (which only allows the
liquid to travel in one direction) and a plug valve (normally open, but can be closed
when needed, such as when servicing the upstream pump). The two pipes join together
by a tee, and the downstream pipe leads to the inlet of the digester.
During normal operation, the pumps may run several times an hour to pump waste to
the lagoon. Only one pump will run at any given time, normally, where the pumps will
alternate between cycles (Pump 1 will run while Pump 2 is off, and in the next cycle
Pump 2 will run while Pump 1 is off, and so on). It is not uncommon, however, for both
pumps to operate during higher inlet flows.
The pumps can also be controlled manually, if desired, or in times of troubleshooting,
etc. The control panel next to the pump station includes toggle switches for each pump,
which can be set to either (1) Auto (for normal float -based operation), (2) Off, or (3)
"Hand" (i.e., manual operation).
The alternating of pumps can also be changed within the control panel, where a toggle
switch allows the operator to choose "Lock 1", "Alternate", or "Lock 2". During normal
operation, the toggle switch will remain at "Alternate" in order to alternate the pumps
between pumping cycles, but the operator can choose to lock the use of Pump #1 or
lock the use of Pump #2 if needed.
The gravity outlet of the anaerobic digester leads to the inlet of the effluent pump
station, and the invert is set at the freeboard of the digester so that the digester
maintains a constant level
Note: Some farms do not have Effluent Pump Stations; rather than using an Effluent
Pump Station, the waste gravity flows from the anaerobic digester to the lagoon.
6) Storage Basin
The effluent of the anaerobic digester flows from the anaerobic digester outlet pipe to
the storage basin. The storage basin is used to store the treated effluent subsequent to
anaerobic digestion. The individual farm owners are responsible for the operation and
maintenance of the storage basins. However, as this is a critical part of the integrated
system, the Operator should note any abnormal operation of the storage basin, such as
leaks or excessive liquid level, and communicate such observations to the farm owner.
During normal operation, the storage basin will most often appear to be inactive. Waste
will periodically flow from the anaerobic digester outlet pipe into the storage basin via
gravity.
7) Biogas Conditioning System
The Biogas conditioning system receives biogas from the anaerobic digester and
removes moisture from the biogas by means of compression and heat exchangers.
Anaerobic Digester System O&M Page 7 of 15

This system will be managed by a 3" party, but the information is included in this O&M
for reference.
The biogas from the anaerobic digester is commonly at 100% relative humidity; the
biogas is purported to be near 6% relative humidity after going through the conditioning
system.
During normal operation, the conditioning system should run without any need for
input from the system operator. Audible and visual alarms will indicate issues with the
system. The discharge pressure and flow rate can be manipulated by the operator
through adjustment of the pressure regulator on the bypass line and through
adjustment of the variable frequency drive. The automatic shutoff feature, whereby the
operator can set the vacuum pressure shutoff point. As the Unison skid approaches this
setpoint, it will automatically reduce compressor speed to seek a flowrate that matches
the biogas production. If the vacuum pressure exceeds the setpoint, the Unison skid will
shutdown and trigger an alarm to the operator via telemetry system.
8) Flare
During normal operation, the flare located at each farm should not be necessary. In
times of need, such as catastrophic failure of the biogas conveyance pipeline, the flare
may need to be operated to consume excess accumulated biogas from the digester.
The flare is not an automated system, and the Operator must articulate the biogas
piping control valving to direct biogas from the digester to the flare, and ignite the flare.
Care must be taken by the Operator in igniting the flare, as biogas is highly flammable.
Each flare also has a condensate trap manhole. Contained inside is a small PVC drain
pipe and PVC drain valve. The PVC drain valve should remain closed at all times unless
the Operator is removing condensate. Should the valve be left open, biogas will escape
from the piping. Periodically, and at a frequency determined appropriate by the
Operator, these condensate traps will be opened momentarily to drain and remove any
condensate collected in the piping. It is recommended that the condensate drain valve
only be opened when the biogas piping is pressurized, as should the valve be opened
under no pressure, ambient air may enter the biogas piping and challenge biogas
upgrading by the GUS.
9) Transfer Pump
The transfer pump transfers accumulated effluent among available storage basins as the
farm owner deems necessary to optimize effluent storage. The transfer pumps are
simple and manually operated through use of a local disconnect. Under normal
circumstances, the transfer pump will only be used periodically and infrequently by the
farm owner.
10) Stormwater Removal Pump
A stormwater removal pump is kept at each digester site in order to remove
accumulated rainwater from the top of the basin cover. The pump can be powered by
Anaerobic Digester System O&M Page 8 of 15

any standard 120v outlet that's available nearby, such as the accessory outlet installed
adjacent to the digester mixing pump station. The pump should be placed in a low spot
on top of the cover, and the pump outlet should lead to an appropriate area for
stormwater discharge (on some sites, pipes have been placed to easily receive the pump
outlet pipe, which leads to the natural stormwater drainage swales on the property).
IV. Description of Anticipated Maintenance
Once the system has been started up and is operating efficiently, very little maintenance will be
required. Simple tests should be periodically performed to evaluate the performance of the
wastewater treatment components, and the system components visually inspected daily.
A well -operated, properly adjusted, system will exhibit the following visible signs of proper
maintenance:
• All pipes should be intact and watertight.
• The pumps should be nearly silent with little to no vibration.
• The anaerobic digester should be free of excessive accumulation of rainwater.
• Accumulated rainwater may be removed with a portable sump pump. The pumped water
may be discharged safely on adjacent vegetated areas, or used for a more beneficial
purpose as permitted.
• The anaerobic digester cover should be free of any tears, punctures, or failures.
• There should be no strong odors coming from the digester or flare.
• The storage basin should be clean and free of floating debris. The liquid should be clean and
clear.
A. Routine System Maintenance Instructions
For optimum system operation and maximum treatment efficiency, daily maintenance is
necessary. In addition to the daily maintenance, all mechanical equipment should be
cleaned weekly and lubricated as often as needed.
See Appendix B of this document for an operations and maintenance checklist (daily,
monthly, quarterly, semi-annually, annually).
B. Troubleshooting
Refer to equipment O&M manuals as necessary, summarized below:
1. Influent Pump Station
2. Mixing Pump Station:
3. Effluent Pump Station:
4. Unison Conditioning System
5. Transfer Pump:
4" Hog Manure Pump or 4" High Pressure Pump
(Electric Pumps)
8" Flush Pump (Electric Pump)
4" Hog Manure Pump or 4" High Pressure Pump
(Electric Pumps)
N/A
3" Pump (Electric Pumps)
Anaerobic Digester System O&M Page 9 of 15

See Appendix A for contact information for each system component.
C. Emergency Protocols, Repair, and Replacement
The O&M Manual kept onsite in the farm office building (or wherever farm records are kept
for each farm) provides step-by-step instructions for field repair or securing the piece of
equipment until qualified repair personnel arrive.
This Manual contains emergency contact numbers for the repair or replacement of the
supplied equipment in Appendix A.
D. Warranty Information
1) Farm Site
(1) Influent Pump Station: "GEA Farm Technologies... warrants to the original buyer and
end user... that the parts of all equipment sold under the Company trademark are free
from defects in material or workmanship for a period of twelve (12) months from the
date of delivery of the equipment to the Purchaser... Any equipment used for commercial
usage, commercial lease on one or more farms is warranted for a reduced period of
thirty (30) days only."
(2) Anaerobic Digester Liner and/or Cover:
Workmanship: "Plastic Fusion Fabricators, Inc. hereby warrants that the linings
installed by Plastic Fusion Fabricators, Inc. under this warranty shall be installed
free from defects in Plastic Fusion Fabricators' workmanship. The warranty set
forth in the preceding sentence (the "Workmanship Warranty") shall commence
upon acceptance of the work and shall expire on the last day of a period of 1
year from said date..."
Material: "AGRU AMERICA, Inc. (AGRU) warrants its material for a period of
FiVE(S) Years, prorated, from the final project ship date when subsequently
properly installed..."
(3) Mixing Pump Station: "GEA Farm Technologies... warrants to the original buyer and end
user... that the parts of all equipment sold under the Company trademark are free from
defects in material or workmanship for a period of twelve (12) months from the date of
delivery of the equipment to the Purchaser... Any equipment used for commercial usage,
commercial lease on one or more farms is warranted for a reduced period of thirty (30)
days only."
(4) Effluent Pump Station: "GEA Farm Technologies... warrants to the original buyer and
end user... that the parts of all equipment sold under the Company trademark are free
from defects in material or workmanship for a period of twelve (12) months from the
date of delivery of the equipment to the Purchaser... Any equipment used for commercial
usage, commercial lease on one or more farms is warranted for a reduced period of
thirty (30) days only."
(5) Biogas Conditioning System (managed by 3d party)
(a) Biogas skid: "This warranty is valid for 30 months from the time the equipment is
shipped from Unison's factory or 24 months from the date of startup, whichever
occurs first."
(b) Biogas Blower / Compressor:
"The goods will be free of defects in material and workmanship for a period of twelv
Anaerobic Digester System 0&M Page 10 of 15

e (12) months from the date the goods are placed in use by the buyer or eighteen (18
) months from the date of shipment, whichever shall occur first."
(c) Chiller: "24 months from startup, not to exceed 30 months from shipping."
(6) Transfer Pump: "GEA Farm Technologies... warrants to the original buyer and end user...
that the parts of all equipment sold under the Company trademark are free from defects
in material or workmanship for a period of twelve (12) months from the date of delivery
of the equipment to the Purchaser... Any equipment used for commercial usage,
commercial lease on one or more farms is warranted for a reduced period of thirty (30)
days only."
V. Provisions for Safety Measures
A. Restriction of Access: No persons should enter any portion of the wastewater treatment system
unless performing a repair or routine maintenance, and only then if accompanied by another
person capable of performing life-saving activities should the need arise.
B. Emergency Contacts: Information shall be posted at the gate and in the control room. (There
will be no harmful chemicals used for the anaerobic digestion system).
C. All equipment safety guards, warning labels, safeties, and warning alarms shall be kept in place
and operational at all times.
D. Keep and maintain all clearances as recommended by equipment manufacturers and as required
by law.
E. Keep all open flames and sources of combustion away from gas accumulations. Do not smoke
near the gas collection, conveyance, or combustion components.
VI. Spill Prevention and Control Provisions
A. Response to Upsets and Bypasses Including Control Containment and Remediation: Audible
alarms will be provided at all controls stations. The Control System will provide remote alarms
to alert operator of a problem should one occur.
B. Contact Information for Operational Personnel, Emergency Responders, and Regulatory
Agencies: Phone numbers for Emergency Responders and Remediation Agency numbers will be
located by the computers and control systems in the control room.
C. Facility Control Valves will allow operator to isolate Systems if a problem occurs.
Anaerobic Digester System 0&M Page 11 of 15

Appendix A: Contact Information
Project Management and Equipment Service Providers:
r PYgjW Maniagement & Equipme
Anaerobic Digester Cover
Mixing Pump Station
Transfer Pump
Flare
Mechanical Installation & Controls
Lee Brock
Brock Equipment Company
ieeLwDrocKequipment.com
[phone]
Plastic Fusion Fabricators, Inc.
Larry Hice
[phone]
Lee Brock
Brock Equipment Company
lee(a)brockequipment.com
[phone]
and/or
Unison Solutions, Inc.
Don Weeden
Cell: [phone]
Office: [phone]
aon.weeaenunisonsolutions.com
Lee Brock
Brock Equipment Company
r, , cilbroc; . , .ient.com
[phone]
ProPump & Controls Inc.
Jeff McGuire
Work: [phone]
Cell: [phone]
ProPump & Controls Inc.
Jeff McGuire
Work: [phone]
Cell: [phone]
Anaerobic Digester System O&M Page 12 of 15

Regulatory and other Agencies:
Christine Blanton DWQ, AFO Permitting
Lawson and Compliance
Raleigh, NC [phone]
Anaerobic Digester System O&M Page 13 of 15

Appendix B: Farm Operations and Maintenance
Checklist
Operator Present:
Time/Date:
Farm System Checklist: Mark Yes/✓ or No/X as applicable, fill in blanks where specified
Manure Collection / Feedstock System
Perform visual appraisal of waste collection system.
Any visible signs of overflow or malfunctioning?
Check influent pump stations. Any Alarms?
Put each influent pump in "Hand". Operating
normally?
Any rattling or unusual noises from influent pumps?
Any observed leaks or spills from pipes, fittings, or
well?
Test the alarm. Functioning?
Excessive accumulation of solids or debris in well?
Agitation system in need of operation?
RECORD THE RUN HOURS FOR PUMP 1
RECORD THE RUN HOURS FOR PUMP 2
RECORD THE RUN HOURS FOR PUMP 3
RECORD THE RUN HOURS FOR PUMP 4
Digester System
Perform visual appraisal of digester (walk around).
Any visible signs of overflow or malfunctioning?
Does the cover appear to be leaking gas / odorous?
Any visible tears, rips, or holes observed in the cover?
>10% cover area under stormwater/rainwater?
Check mixing pump stations. Any Alarms?
Put each mixing pump in "Hand". Operating
normally?
(not necessary if mixing pumps running during visit)
Any rattling or unusual noises from mixing pumps?
Any observed leaks or spills from pipes, fittings, or
well?
Excessive accumulation of solids or debris in well?
Agitation system in need of operation?
RECORD THE RUN HOURS FOR PUMP 1
RECORD THE RUN HOURS FOR PUMP 2
RECORD THE RUN HOURS FOR PUMP 3
RECORD THE RUN HOURS FOR PUMP 4
Biogas Skid
Are there any alarms?
Are there any fluid leaks observed?
Check oil level — oil needed?
Anaerobic Digester System 0&M Page 14 of 15

Excessive vibration of noise?
Are there any visible fluid leaks on skid or chiller?
RECORD THE RUN HOURS FOR GAS COMPRESSOR
Notes
Anaerobic Digester System O&M Page 15 of 15