310672_Application - Digester System_20240816

AFO Permit Application
ENGINEERS MANUFACTURERS CONSTRUCTORS
August 15, 2024
Christine Lawson
NCDEQ Division of Water Resources
1601 Mail Service Center
Raleigh, NC 27699-1601
Subject: Austin Farms #1 & #2
Facility # AWS310672
State Digester General Permit
Dear Ms. Lawson,
Roeslein & Associates, on behalf of the farm owner, hereby submits the following application to NCDEQ Division of Water
Resources for review of the State Digester General Permit application package for Austin Farms #1 & #2. The subject project is
located in Duplin County, North Carolina. Note there is a new owner as part of this permit application.
The digester constructed on this property will meet setback parameters as required per the Swine Farm Siting Act. The digester
is beyond 1500 ft from any occupied residence, 2500 ft. from any public building, and beyond 500 ft. from any public water
source. The new digester is 91' from the Teachey property line to the northeast which matches the current 91' setback at the
existing lagoon at Austin Farm #2.
Digester influent and effluent will be sampled from wet wells on site per the Sampling Protocol and Schedule document in this
package. The digester water level will be monitored by a level gauge installed in the digester -lagoon transfer wet well.
The digester will generate approximately 43,000 SCF of gas per day. This biogas is intended to be used within 6 months of
beginning to collect gas. A portable flare unit will be connected to an emergency vent at the digester if needed. Spare parts for
the gas upgrading systems will be kept on the shelf so readily available as needed. The digester cover will be provided with
emergency vents which are strategically located away from barns/public but still provide access for operators. Safety procedures
for venting covers are called out in the 0&M document. See Narrative for more information.
Per the Air Permit Applicability Request for Register 1 cluster of farms, submitted to NCDEQ Division of Air Quality, the annual
emission rates from the gas upgrading system associated with this farm are below the thresholds indicated in 15A NCAC
02Q.0102(d) and therefore does not require an air permit.
To facilitate your review of the enclosed documentation, the following is an itemized breakdown:
1. One (1) original "State Digester General Permit Application" application form.
2. One (1) copy of the engineering calculations.
3. One (1) copy of a detailed narrative of the Swine Digester Animal Waste Management System.
4. One (1) copy of Digester 0&M Procedures, Sampling Protocol, and Emergency Action Plan.
5. One (1) copy of the FEMA FIRM map labeled with the "proposed Digester Site".
6. One (1) copy of the permit form Section 3.6 components.
7. One (1) full-size set of the engineering plans, as well as one (1) 11x17" set.
Page 1 of 2

ENGINEERS MANUFACTURERS CONSTRUCTORS
Please note that the Surface Water Classification (Section 7 of the application) has been submitted to the appropriate regional
DWR office (or will be in the near future), and we expect to forward that approval to you in the next few weeks.
Please do not hesitate to contact me or my office if you have any questions, comments or require any additional information.
Thank you,
G . i�
Christopher Fey
Manager, Building Design & Construction
Roeslein & Associates
Attachments
Cc: Farm Owner
Page 2 of 2

State of North Carolina
Department of Environmental Quality
Division of Water Resources
Animal Feeding Operations Permit Application Form
(THIS FORM MAYBE PHOTOCOPIED FOR USE AS AN ORIGINAL)
State Digester General Permit — Farm Digester System
1. GENERAL INFORMATION:
1.1 Facility name: AUSTIN FARM #1 & #2
1.2 Print Owner's name: Beth Stallings Moore
1.3 Mailing address: PO Box 144
City, State: Wallace, NC Zip: 28466
Telephone (include area code): ( 910 ) 271 - 0152 Fax: (—)--
Email: BSTALLINGSgEMBARQMAIL.COM: matthewmoore392gamail.com
1.4 Physical address: 2205 S NC Hwy 11
City, State: ROSE HILL, NC Zip: 28458
Telephone number (include area code): ( 910 ) 271- 0152
Latitude 343843' Longitude-77.9560 (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): I-40 E. Take exit 373 for NC-
24E/NC-903. Turn right onto NC-903 S. Left onto Tracy Brown Rd. Left onto Blind Bridge. Right onto NC- 11 S.
1.7 Farm Manager's name (if different from Landowner): Matthew P. Moore
1.8 Lessee's / Integrator's name (if applicable; circle which type is listed):
1.9 Facility's original start-up date: Date(s) of facility expansion(s) (if applicable):
1.10 Design Contact name: MIKE KOTOVSKY Phone [phone] Email: [e-mail]
2. OPERATION INFORMATION:
2.1 Facility number: AWS310672
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.
Tyne of Swine No. of Animals Type of Poultry No. of Animals Type of Cattle No. of Animals
❑ Wean to Feeder ❑ Layer ❑ Beef Brood Cow
® Feeder to Finish 7,344 ❑ Non -Layer ❑ Beef Feeder
❑ Farrow to Wean (# sow) ❑ Turkey ❑ Beef Stocker Calf
❑ Farrow to Feeder (# sow)
❑ Farrow to Finish (# sow)
❑ Wean to Finish (# sow)
❑ Gilts
❑ Boar/Stud
❑ Other Type of Livestock on the farm:
❑ Turkey Poults
❑ Dairy Calf
❑ Dairy Heifer
❑ Dry Cow
❑ Milk Cow
No. of Animals:
FORM: AWO-STATE-G-DIGESTER-7/15/2022 Page 1 of 6

2.3 Acreage cleared and available for application (excluding all required buffers and areas not covered by the application
system): See attached Waste Utilization Plan
Required Acreage (as listed in the CAWMP): See attached Waste Utilization Plan
Existing Application Area (pre -construction): See attached Waste Utilization Plan
Proposed Application Area (post -construction): See attached Waste Utilization Plan
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 other PRIMARY TREATMENT: (double click on "Select" for drop -down menu box)
Treatment
Existing?
Name of
Treatment
Type of
Liner
Surface
Type of Cover
Ttl Capacity
Req'd Capacity
Unit Type
(Y/N)
Unit
Material
Area
Material
(cu. Ft.)
(cu.ft.)
Digester
N
Lagoon
Synthetic
57,800
Synthetic (80 mil)
494,016
401,093
27015
Select
Select
Select
Select
Select
Select
a.l Are engineering designs, drawings, specifications, and details attached? YES or NO (circle one)
b. SECONDARY TREATMENT/STORAGE: (double click on "Select" for drop -down menu box)
Name of Storage Unit
Existing?
(Y/N)
Type of Liner
Material
Surface Area
Ttl Capacity
cu. Ft.)
Req'd Capacity
(cu.ft.)
Lagoon 27515
Y
Clay
104,976
796,068
748,366
Lagoon 27516
Y
Clay
104,976
796,068
748,366
Select
Select
2.5 Are KNOWN subsurface drains present within 100' of any application fields?
2.6 Are KNOWN subsurface drains in the vicinity or under the waste management system?
YES or NO (circle one)
YES or NO (circle one)
2.7 Does this facility meet all applicable siting requirements? YES or NO (circle one)
2.8 Describe Water Movement between Barns, Digesters, and Storage Ponds (double click on "Select" for drop -down menu
box)
Location
Pump Station or
Gravity
Pipe Size
Minimum Pump
Ca acit
Plan Sheet
Reference
GPM
TDH
Barns to Digester
Pump Station
6"
599
34.02
RA270-00-27015
Barns to Digester
Pump Station
6"
533.5
38.3
RA270-00-27015
Digester to Secondary
Pump Station
6"
623.5
8.1
RA270-00-27015
Secondary to Tertiary
Pump Station
6"
445.5
24.53
RA270-00-27015
Select
Select
Select
Select
FORM: AWO-STATE-G-DIGESTER-7/15/2022 Page 2 of 6

3. 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.
3.1 One completed and signed original of the application for Digester Animal Waste Management
System Application Form.
3.2 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.
3.3 Documentation that new digester structure(s) meets the Swine Farm Siting Act, for swine
operations.
3.3.1 Site Map. The scale of this map shall not exceed 1 inch = 400 feet.
3.3.2 All proposed digesters to occupied residences > 1500 feet OR no closer than existing setback.
Applicant's Initials
CF
CF
CF
Existing setback = 1,500 feet
3.3.3 All proposed digesters to schools, hospitals, churches, outdoor recreational facilities, national parks, state
parks, historic properties, or childcare centers > 2500 feet OR no closer than existing setback.
Existing setback = 2,500 feet
3.3.4 All proposed digesters to property boundaries > 500 feet OR no closer than existing setback.
Existing setback = 91 feet
3.3.5 All proposed digesters to Public Water supply wells > 500 feet.
3.3.6 The map shall show the location of any property boundaries and perennial streams, or rivers located
within 75 feet of waste application areas.
3.4 One copy of all engineering documents, including, but not limited to, calculations,
equipment specifications, plan and profile drawings to scale, construction materials,
supporting equations or justifications.
3.5 A detailed narrative of the Farm Digester Animal Waste Management System.
3.6 A copy of the CAWMP which must include the following components. Some of these
components may not have been required at the time the facility was initially certified but must
be added to the CAWMP for permitting purposes:
CF
CF
CF
3.6.1 The Waste Utilization Plan (WUP) must include the amount of Plant Available Nitrogen (PAN)
produced and utilized by the facility
3.6.2 The method by which waste is applied to the disposal fields (e.g., irrigation, injection, etc.)
3.6.3 A map of every field used for land application
3.6.4 The soil series present on every land application field
3.6.5 The crops grown on every land application field
3.6.6 The Realistic Yield Expectation (RYE) for every crop shown in the WUP
3.6.7 The PAN applied to every application field
3.6.8 The waste application windows for every crop utilized in the WUP
3.6.9 The required NRCS Standard Specifications
3.6.10 A site schematic
3.6.11 Emergency Action Plan
3.6.12 Insect Control Checklist with chosen best management practices noted
3.6.13 Odor Control Checklist with chosen best management practices noted
3.6.14 Mortality Control Checklist with the selected method noted
3.6.15 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
3.6.16 Site Specific Operation and Maintenance Plan
If your CAWMP includes any components not shown on this list, please include the additional components with your
submittal. (Composting, waste transfers, etc.)
FORM: AWO-STATE-G-DIGESTER-7/15/2022 Page 3 of 6

4. ENGINEER'S CERTIFICATION:
1, Patrick L. Kullberq
(P.E. representing Owner's name listed in question 1.2),
attest that this application for Austin Farm #1 & #2 (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 packaAwill be returned t9 me as incomplete.
Signature __ �� 1. xz&— ` ,Y' _ Date 8/14/2024
Engineer's Seal
5. FARM OWNER/PERMITTEE CERTIFICATION:
(Owner/Permittee name listed in question 1.2), attest
that this application for �\,( 5 �,r, i-- 1 111 1), (Facility name listed in question I.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 inforniation and attachments are not included, this application
package will be returned as incomplete.
Signature -- l_ CxiS,. ti _ Date _ 1 ,�-L
6. MANAGER'S CERTIFICATION: (complete only if different from the Farm Owner)
tCv1 P mCU0�zC: (:Manager's name listed in question 1.7), attest that this
application for 0 U 5i 1 N i 0 ayvN %4 1 4- �k# L (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 ineomp
Signature
Date 07 — 2 ) -- ZQZ q
THE COMPLt-rFD APPVCATION PACKAGE, INCLUDF�4G 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]
ELECTRONIC SUBMISSION IS ENCOURAGED. EMAIL TO: RAMESH.RAVELLA(c,NCDENR.GOV
FORM: AWO-STATE-G-DIGESTER-7/15/2022 Page 4 of 6

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 DWR 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 6 of 6). At a minimum,
you must include an 8.5" by 11" 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 Facility Name & Number:
7.2 Name & complete address of engineering firm:
Telephone: ( )
Email:
7.3 Name of closest downslope surface waters:
Fax: ( )
7.4 County(ies) where the animal waste management system and surface waters are
7.5 Map name and date:
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:
Classification (as established by the Environmental Management Commission):
Proposed classification, if applicable:
Signature of regional office personnel:
(All attachments must be signed)
Date:
FORM: AWO-STATE-G-DIGESTER-7/15/2022 Page 5 of 6

DIVISION OF WATER RESOURCES REGIONAL OFFICES (4/2020)
Asheville Regional WQROS Supervisor Washington Regional WQROS Supervisor Raleigh Regional WQROS 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 WQROS SupervisorMooresville Regional WQROS Supervisor Wilmington Region WQROS Supervisor
225 Green Street, Suite 714
610 East Center Avenue
127 Cardinal Drive Extension
Fayetteville, NC 28301-5094
Mooresville, NC 28115
Wilmington, NC 28405-3845
[phone]
[phone]
[phone]
Fax [phone]
Fax [phone]
Fax [phone]
Anson Moore
Alexander Lincoln
Brunswick New Hanover
Bladen Richmond
Cabarrus Mecklenburg
Carteret Onslow
Cumberland Robeson
Catawba Rowan
Columbus Pender
Harnett Sampson
Cleveland Stanly
Duplin
Hoke Scotland
Gaston Union
Montgomery
Iredell
Winston-Salem Regional WQROS Supervisor
450 Hanes Mill Road, Suite 300
Winston-Salem, NC 27105
Phone [phone]
Fax [phone]
Alamance
Rockingham
Alleghany
Randolph
Ashe
Stokes
Caswell
Surry
Davidson
Watauga
Davie
Wilkes
Forsyth
Yadkin
Guilford
FORM: AWO-STATE-G-DIGESTER-7/15/2022 Page 6 of 6

ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
27015 - AUSTIN FARM 1&2 Pump Call:
wr l V;dl-
9: s6ft
P&-iae 0 psi 9
AUSTIN FARM 1 Flush
Lift Station
Monarch Bioenergy LLC — Register, NC
Swine RNG Project
A1000 Pump Calc
R&A Project RA270-23
Issued 240722
Digester
Leal. 7ft
p otal: 12. 71 prig
P Total: 14. 21 ps i c
p
H
`�
Pecs.-e B., A3 y52
Rpe 421�H0
4fih
4Ki hPr—FL rp 15HP-19
Rpe 422
9:6n
Pipe 287
pipe 288
06 ft
El: 1PTotaI�0
OP Wig
L: Lft
flP Fa�Speed�1810 rpm
pONi:
L:3R
9:6n
L: LSft
06.
Fhw: 599 gpm
1d: 7.279 FNs
Fl: 0.026651 ft
TH: 3
VA 7.279i`0s
:.I: 7.279 R•'s
F[
P Rates: -03.357 pi
NPSHa 3MI[t
FL: 0. 699 ft
F1: 1.513 ft
FL: 31,81 k
FL: 1.81 ft
P Drna�: 0357 psi
Pact Tod 3@3psi g
Pdedt Tod 13(Epp g
P.— In: —
g§ __
NP5FY:__
g,dp
EA: 99ft
P a •fse 0 Ps c
Leal: 7ft
u
AUSTIN FARM 2 Flush
Lift Station
P Total: 14.2 W i c P otd: 15.54 prig
Digester
—P
Pipe 413
6 6 in
i H
Pi424 R 290
4- Fp h Pam. a Pmrp 191P-20 g: 6 in
Pipe 291
Pess., Bo. rdary 53
9: 106 ft
PTota � 0 t 9
L: 1 R
OP: _ Speed @ i800 rpm
I: 3 ft 1LS ft
36.482
i : 6 n
Fbw: 533.5 gpn
1�1: 6.482fts
F6vr. 5335cpn
TM: 3& 33 R
L ftJs 11el: 6.482 his
L: 1700ft
%iel: 6.482 fVl
PStatr:-0.2831 P99
Ft 0.0215 ft
NPSH. 39A9 ft
FL: 0.5558 ft Fl: 1.207 ft
l: 35,54 h
n3rr�: P D,0.2831 psi
P .IT": 3.03 p3 g
Pdi hTotal: 14A4 prig
P.— In:
Ef: —
AUSTIN FARM 1 to AUSTIN
FARM 2
Wet lMtll_6X8)65
Water Transfer
Lagoon
El: 102 R
P Surface: 0 psi g
Level: 7 R
P Total: 11.8 psig P Total: 13.55 psi g
u
—
_n
L��i
PPe 459
6 in
���
4" Hog Furry 1aHP -13
►� ��
Ppe 460 Pipe 347
Pressure Boundary 72
F: 108 ft
OP: P Total @ 0
L:
L: 1 ft
OP: 1. Speed @ 1800
Fbw: 476gpm
rpm 0: 6 in 0: 6 n
3 k L: 15 R
6 n
0: 6 in
psi g
Flow: 476 gpm
Vel: 5.785 Ws
HL: 0.0175 h
TH: 2666R
V
Vd: 5.785 ft/s Vd: 5.785 ft/s
L:
L: I500 k
Vd: ft/s
P Static:-0.2254 ps g
NPSHa: 39.49ft
HL: 0.4437 ft K: 0.9667 h
ft
P Dynarric: 0.2254 psi
P sutToat 3.027 ps g
6728
HL 26.25
P disch Total: 11.99 psi g
Paver In: --
E8: --
NPSHr: —

Monarch Bioenergy LLC — Register, NC
ROESLEIN Swine RNG Project
A1000 Pump Calc
ENGINEERS a MANUFACTURERS a CONSTRUCTORS R&A Project RA270-23
Issued 240722
Digester to AUSTIN FARM 1
Water Transfer Lagoon
Wet Wall- 64
8:9Bft
P Surface: 0 pp 9
Laed: 7 ft
u
P Total: 3.18 psr 9
3 P Total: 5.072 psi g
`lC�
•ice
►�
_
Pressuxe Boundary 83
Pqe 485
0: 6 n
4- Hoe Pump 10H P -3
Ape 486
Ape 483
Pipe 484
El: 110 ft
Op: P Total @ 0 pm 9
L: 1 ft
OP: load Speed ! 1800 rpm
0: 6 in
L: 3 R
0: 0: n
L: 6 ft
0: 6 n
How: 623.5 9pm
Vel: 7.576 R/s
FL: 0.0285 ft
Flo— 623.5 9pra
TH: BA2 ft
Vel: 7.576 R/s
Vel: 7.576 R/s
L: 200 ft
Vel: 7.576 ft/s
P 5tatic: -0..3psi 9
NPSHa: 39.48 ft
P sut Total: 3.022 pc 9
M: 0.7566 R
FL: 1.635 R
FL: 5.7 ft
P Dynamic: 0.3867 psi
P dach Total: 3.101 p4 q
Power in: --
EfF: --
NPSHr: --

ROESLEIN
Digester- Volume Calculations
Project: Location:
Project No: Design By:
Date: Checked By:
Rev: nr��
Existing Configuration (For Reference)
Farm Information: Farm Population:
AUSTIN FARM 1
AUSTIN FARM 2
Total: 7344
Storm and Rainfall:
Storm (25-yr, 24-hr): 7.5 in.
"Heavy Rain": 7.5 in.
Proposed Configuration (Proposed Digester)
Flow Path: Barns -> Digester (Proposed) -> Existing Lagoon
*Note: Roeslein Digesters are designed regarding Hydraulic Retention Time, not Minimum Treatment Volume for hog farms
*Note: New digester lagoon is not providing additional evaporative treatment storage capacity, but instead serves as a steady-state
reservoir, diverting additional water volume to existing evaporative treatment lagoons
*Note: Existing AUSTIN 1 & 2 lagoons designed by Dave Elkin 1-24-1995
Volumes:
Total Capacity
r7344
Capacity I cf/head I=Total
Treatment Volume=1 73441 501 367200 cf
Capacity I Retention Time (days) = Total
Volume for Retention Time=1 73441 40.001 cf
Volume Required (cf)
Volume Provided (cf)
Lagoon Calculations
Lagoon Volumes
Desired Digester Treatment Volume
132759
282040
Sludge Storage
59127
40376
Storm Storage
0
0
"Heavy Rain":AMErho
0
Total
191885
322416
Note: "Heavy Rain" and "Storm Storage" are shown as 0 cf for the digester because the HDPE cover prevents rain from entering the
wastewater system and therefore doesn't need to be accounted for in these volume calculations. The rain water that falls on the cover is
pumped off the cover with rain water pumps.
Note: Though the 50 cuft/hd volume requirement is higher, the size of this lagoon is limited by property lines. The lagoon still surpasses
the 40 days HRT requirement.
Total Temorary Storage
Proposed Configuration (Proposed Digester)
Vol. (cf)
High Pump Elev. 291912
Low Pump Elev. 272320
Temorary Storage 19592
Digester (Proposed) Volume
Digester (Proposed) Berm Length (FT):
Digester (Proposed) Berm Width (FT): 170
Digester (Proposed) Berm Slope:
Digester (Proposed)
Stage -Storage
Elevation (ft)
Area (sf)
Incr. Vol. (cf)
Cumul. Vol. (cf)
158
18424
-
0
159
20176
19294
19294
160
22000
21082
40376
161
23896
22942
63318
162
25864
24874
88192
163
27904
26878
115070
1641
30016
28954
144024
165
32200
31102
175126
166
34456
33322
208448
167
36784
35614
244062
168
39184
37978
282040
169
41656
40414
322454
170
44200
42922
365376
Digester Treatment Volume:
at High Pump Elevation of:
at Operating Elevation of:
at Low Pump Elevation of:
Elevation (ft)
Cumul. Vol. (cf)
168.25
291912
168
282040
167.75
272320
Elevation Vol. (cf)
Top of Dike Elev. =
170
365376
Top of Storm Elev. =
168.93
319537
High Pump Elev. =
168.25
291912
Operating Elev. =
168
282040
Low Pump Elev. =
167.75
272320
Planned Sludge Elev. = 160 40376
Finished Bottom Elev. = 158 0
Historic Rainfall Event
Lagoon
Req'd Capacity*
Lagoon 27515
748366
Lagoon 27516
748366
Total
1496732
Lagoon Rainfall Volume (cuft)
Lagoon 27015 27625
Lagoon
Total Capacity*
Lagoon 27015
322454
Lagoon 27515
796068
Lagoon 27516
796068
Total
1914590
Volume (cuft)
Required
1496732
Rainfall
27625
Total Capacity
1914590
Remaining
390233
Usage
80%
*Existing lagoon capacities gathered from previous farm permit documentation - designed and signed by Dave Elkin 1-24-1995
*Req'd Capacity from previous farm permit docs already includes volume from historic rainfall events
*Note: A 25-year storm creates 27625 cuft of water. Added to the High Pump Elevation, this raises the water elevation to 168.93 ft.
This provides 12.84 in. of freeboard, meeting the standard 12 in. required per the NRCS Anaerobic Digester standard.

ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
27015 - AUSTIN FARM 1&2 Digester Narrative
Monarch Bioenergy LLC — Register, NC
Swine RNG Project
A1000 Digester Narrative
R&A Project RA270-23
Issued 240806
Farm will utilize existing barns with slotted floors over flushing pits to collect manure. The farm
operators use pull plug system and recycle water for flushing to manage the animal manure. As part of
this current project, a new anaerobic lagoon digester will be installed, and the animal manure will be
redirected to the new digester. After treatment in the in anaerobic digester, the effluent will flow into
the existing lagoon. There is no change to the existing farm operations, nor the volume of wastes
generated. The effluent water will be recycled back to the barn for pit recharge or irrigated in
accordance with the existing Waste Utilization Plan (WUP).
Upon flushing, the wastewater from the barns will be directed into a properly designed lift station
through a 12-inch diameter gravity pipe header. There will be two pumps in the lift station wet well and
each pump is designed for 100% of the design flow.
The lift station pump at Austin FARM 1 will be 15 HP GEA pump, designed for a flow of 599
gallons/minute, through 6-inch diameter, HDPE SDR 17 force -main into the new anaerobic lagoon
digester.
The lift station pump at Austin FARM 2 will be 15 HP GEA pump, designed for a flow of 533
gallons/minute, through 6-inch diameter, HDPE SDR 17 force -main into the new anaerobic lagoon
digester.
The approximate dimensions of the new anaerobic lagoon digester are 340 feet by 170 feet with a total
volume of 494,016 cubic feet and a treatment capacity of 384,440 cubic feet at operating level.
Before the excavation, the project area is stripped approximately 6 inches of topsoil and will be
stockpiled. Embankment material will be free of sod, roots, and other objectionable material. The
maximum thickness of each compacted layer will be 6-inches and compacted to 95% of Standard Proctor
at -1 to +3 percent of optimum moisture content per ASTM D698. Each lift shall be tested for moisture
and density. The stockpiled topsoil will be spread on the outside bank.
After the construction the lagoon, and all required pipe penetrations, the inside walls of the lagoon will
be smooth rolled prior to the installation of the baseliner. The baseliner will be 60-mil think HDPE
synthetic liner. After the liner is installed, it will be tested for leaks prior to filling the lagoon with
wastewater.
There will be an outlet structure with a transfer pump (level control) that keeps the water level inside
the digester at a constant level. The effluent will gravity flow through a 12-inch diameter digester outlet
pipe to the level control wet well and be transferred by pumped into the existing lagoon through a 6-inch
diameter pipe.
The transfer pump will be 10 HP GEA pump, designed for a flow of 623 gallons/minute, through 6-inch
diameter, HDPE SDR 17 force -main to existing lagoon.

ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Monarch Bioenergy LLC — Register, NC
Swine RNG Project
A1000 Digester Narrative
R&A Project RA270-23
Issued 240806
Water will be transferred back to the existing lagoon at Austin Farm 2 by floating transfer pump in
existing lagoon at Austin FARM 1. The transfer pump at Austin FARM 1 will be 10 HP Flygt pump,
designed for a flow of 445 gallons/minute, through 6-inch diameter, HDPE 5DR 17 force -main into the
existing lagoon at Austin Farm 2.
Once the lagoon is within in 2 feet of the normal operating level, a floating cover will be installed to
capture the biogas produced by the anaerobic digestion of the organic wastes in the wastewater. The
captured biogas will be treated to produce renewable natural gas (RNG) by a micro -gas cleaning skid
(micro-GUS). Tail gas from micro-GUS will be vented to atmosphere, with levels documented in PAD
letter.

ROESLEIN.
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Anaerobic Digester System O&M
Table of Contents
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
Definitions.............................................................................................................................................
Introduction...........................................................................................................................................
Description of the Operational Components.........................................................................................
GravityCollection Pipe.....................................................................................................................
Lift Pump Station (where necessary)................................................................................................
AnaerobicDigester...........................................................................................................................
MixingPump....................................................................................................................................
SecondaryLagoon............................................................................................................................
TransferPump...................................................................................................................................
RainwaterCover Pump.....................................................................................................................
OxygenInjection System..................................................................................................................
Description of Anticipated Maintenance...............................................................................................
Routine System Maintenance Instructions........................................................................................
Troubleshooting................................................................................................................................
Emergency Protocols, Repair, and Replacement..............................................................................
Safety....................................................................................................................................................
BiogasHazards.................................................................................................................................
EquipmentSupplies..........................................................................................................................
Proper Protective Equipment (PPE)..................................................................................................
Provisions for Safety Measures.........................................................................................................
Restrictionof Access.....................................................................................................................
EmergencyContacts.....................................................................................................................
Equipment Safety Guards, Warning Labels, & Alarms.................................................................
Clearances.....................................................................................................................................
Open Flames & Combustion Sources...........................................................................................
Spill Prevention & Control Provisions..................................................................................................
Response to Upsets and Bypasses Including Control Containment and Remediation ......................
Contact Information for Emergency Responders and Regulatory Agencies .....................................
FacilityControl Valves......................................................................................................................
Warranty............................................................................................................................................... .
Appendix A: Inflation Rating Guide.....................................................................................................
Appendix B: Digester Operation SOP..................................................................................................
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ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
Definitions
Anerobic Digestion — The process of decomposing organic waste material through the use of bacteria in the
absence of oxygen to produce Biogas and Digestate.
Anerobic Digester- A sealed basin or tank designed contain the waste and capture the Biogas during
anerobic digestion.
Biogas- A product of Anerobic Digestion, produced by fermentation of organic materials. It typically has a
composition of mainly methane and carbon dioxide, with traces of nitrogen, oxygen, hydrogen sulfide, and
water.
Digestate — liquid/solid digester effluent.
Introduction
The Project uses anerobic digestion of swine waste to produce biogas. The biogas is captured, upgraded to
RNG, and combined with other swine site RNG before being ultimately injected into a utility's natural gas
pipeline.
The Project includes manure influent piping from the swine barns, an anerobic digester, biogas take -off
pipe going to the Micro Gas Cleaning System (µGCS), and digestate transfer system to open storage lagoon.
The barn waste stream contains two types of solids: organic and inorganic. A portion of the organic solids
are broken down (digested) to produce biogas. The digestion of organic solids occurs as a result of several
"types" of microbes, which exist in a symbiotic relationship. The naturally occurring microbes are one of
nature's ways of breaking down organic material. The digester provides an ideal environment for the
microbes to thrive. The inorganic solids either settle at the bottom of the digester or exit in the digestate
stream as a dissolved solids or suspended solids.
In addition to the information provided in the document, the operator should familiarize themselves with
the local, state, and federal laws that may apply to operation of this site.
Description of the Operational Components
Below are listed the major component operations.
Gravity Collection Pipe
The gravity collection pipe receives waste from the hog barns and directs that waste to either an
influent lift station or directly to the earthen lagoon digester. Typically, the diameter of the pipe is
8" (min) to 12 inches (max).
The gravity collection pipe includes several clean -outs that provide access to the gravity collection
pipe for removal of a clogs or blockage via use of a sewer snake or similar apparatus as needed.
Typically, there will be at least one cleanout every 200 feet. During normal operation, the pipe
should be free flowing, without obstructions, to transport waste to the lift pump station or directly
to the anaerobic digester.
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ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
The barn operator is responsible for sending barn waste to the gravity collection pipe. The
digester/biogas operator should check weekly, each hog barn waste outlet to ensure that there are
no overflows, clogs, etc.
Lift Pump Station (where necessary)
The lift pump station receives wastewater from the gravity collection pipe and pumps that
wastewater to the anaerobic digester via buried forced main. The waste enters the digester at the
opposite end of the digester outlet. During normal operation, the pump station will automatically
cycle on and off based on the liquid level in the wet well, which is triggered by float switches.
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 via 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, 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).
In the event of a pipe clog or lift 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 a Lift Pump Station, the
waste flows from the barns directly to the anaerobic digesters.
Anaerobic Di eg ster
The anaerobic lagoon is constructed outside of the 100-year flood plain and any wetlands. The
treatment volume is designed utilizing a minimum volume of 50 cubic feet/head and with a
minimum HRT of 40 days. The construction approach will be a cut and fill balance. The excavated
material will be utilized to build the embankments. The berm fill material for the lagoon will be
placed in 6-inch-thick lifts to a minimum of 95% of standard proctor at -1% to +3% of optimum
moisture. Each lift fill be tested for moisture and density. The excavated material used for the
lagoon berm construction will be free of sod, roots, and other objectionable materials. The
minimum top width of the lagoon digester will be 15 feet with a minimum inside and outside slope
of 3:1.
After the construction of the embankment and after the installation of all pipes penetrating the
berms, the inside of the lagoon will be smooth rolled and a 60-mil thick HDPE liner will be installed
as the baseliner. Edges of the baseliner will be secured in an anchor trench at the top of the berm.
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ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
The anaerobic digester receives all raw waste 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, biogases (including methane, carbon dioxide, and hydrogen sulfide) are produced. These
gases are captured under an impermeable cover (80-mil thick HDPE liner) and then directed to the
biogas cleaning system. biogas blower or biogas dehydration system.
Biogas captured and stored under the cover supplies the biogas draw off piping. All berm
penetrations (gravity sewer, forced main, effluent to wet well, sludge removal piping must always
remain submerged to create a liquid seal to prevent biogas from escaping. Perforated piping
underneath the cover connects all sections of the lagoon to the draw off connection. The liquid
waste is digested for a minimum of 40 days.
The digester liquid effluent is either pumped or gravity fed to an existing storage lagoon. The
lagoon digester cover should be supported by the lagoon liquid when not inflated. Dropping the
lagoon liquid level too low may lead to an unsupported cover and possible cover stretching and
cover damage. Recommended operation level is 3-4 ft below top of berm to ensure adequate
digester biomethane production and ensure that the level does not exceed 2 ft below top of berm at
any time during operational deviances. The digester liquid level should be monitored daily.
Any settleable solids and microbes (i.e. "Sludge") build up slowly over months/years at the bottom
of the digester. These solids can be periodically removed by connecting portable pipes and pumps
to the sludge removal pipes in the digester and disposed of through permitted means on the farm or
by a contract sludge hauler.
There will be a total of eight 6-inch diameter sludge removal pipes installed near the bottom
elevation the lagoon and terminated near the top of the berm. Four installed on each side of the
central ballast pipe, staggered every other lateral. These pipes will be utilized for the periodic
removal from the lagoon.
Ballast piping on top of the cover control the cover inflation and direct rainwater to center rainwater
trenches to be pumped to natural water shed (if uncontaminated). The cover should be free of
excessive accumulation of rainwater and should not show signs of any damage or leaks.
The effluent of the anaerobic digester flows from the anaerobic digester through an outlet structure
and flows by gravity into the secondary lagoon. The outlet structure is equipped with a level gauge
with 1-foot markings. The outlet structure has an overflow weir to keep a constant freeboard of 2'
inside the lagoon digester. The effluent overflowing the weir will be directed to the secondary
lagoon by gravity.
During normal operation, the digester cover will inflate like a balloon from the biogas trapped
beneath, an inflation guide can be found in Appendix A. Proper inflation of the digesters is critical
to the reliable operation of the plant. A low level of inflation ensures that ingress of air doesn't
occur into the biogas which would contaminate the gas with nitrogen and oxygen. 100% full
inflation ensures that the covers are in an optimal state for 24-hour net heat gain by the digester and
prepared for normal atmospheric wind conditions. The pressure under the cover will typically range
from 0-0.3" w.c., a pressure of 0.4" w.c. can be dangerous.
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y� Register, NC RA270-22
RO E S L E I N Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Typical digester operation can be found in Appendix B.
Mixing Pump
A dry well will house a mixing pump which draws the water from the lagoon near the bottom
elevation and discharges the water near the influent side of the digester. This pump will be operated
on a regular interval. This pump is typically operated for approximately 4 hours a day, five days a
week.
Secondary Lagoon
The effluent of the anaerobic digester flows from the anaerobic digester outlet pipe to the secondary
lagoon. The secondary lagoon is used to store the treated effluent after anaerobic digestion until it
can be land applied.
There is an ammonia reduction unit installed on these secondary lagoons.
The farm operator is responsible for the operation and maintenance of the secondary lagoons.
Digestate liquid stored in the secondary lagoon is used for pit pre -charge and flush tank recharge.
The secondary lagoon is a critical part of the integrated system, the Digester/Biogas 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 or pump.
The outlet pipe from the anaerobic digester into the storage lagoon must remain submerged in the
digester to provide a liquid seal and prevent biogas from escaping from beneath the digester cover.
As such, it is not uncommon for the pipe to turn down and follow the direction of the inner slope
of the lagoon to ensure submergence during times when the lagoon liquid level may be low due to
normal pumping and irrigation activities.
Transfer Pump
The transfer pump transfers accumulated effluent among available secondary lagoons as the farm
owner desires to optimize effluent storage. The transfer pumps are manually operated through the
local disconnect. Under normal circumstances, the transfer pump will only be used periodically by
the farm owner. Typically, the transfer pump is used to draw down the digester liquid level in the
fall to make room in the digester to store lagoon liquid during the colder winter months.
Rainwater Cover Pump
Two rainwater cover pumps are installed on end of the digester to remove accumulated rainwater
from the digester cover. There will be a 3-inch suction line to each of these stormwater removal
pumps. Erosion control measures, such as rip rap will be placed at the discharge point.
Oxygen Injection System
An oxygen injection system will be installed to limit the amount of hydrogen sulfide in the biogas.
The oxygen injection system consists of an oxygen generation unit which produces 95% purity
oxygen from air, and it will be injected under the cover at two locations. Calibrated Oxygen
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ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
monitoring instrument continuously monitors the concentration of oxygen in the head space under
the cover. The maximum allowable oxygen concentration in the biogas will be 0.5%.
Description of Anticipated Maintenance
The system is designed to require as little maintenance as possible once it has been started up and is in
operation. Sample tests should be performed periodically and to permitting requirements, to allow
evaluation of the composition of the wastewater. System components should be visually inspected regularly
and as recommended by the equipment manufacturer. If the system is well operated, it will display the
following signs of being maintained properly:
• All pipes should be intact and watertight.
• The pumps should operate with little to no vibration and without excessive noise.
• The anaerobic digester should be free of excessive accumulation of rainwater on the cover. The
accumulated rainwater will be pumped off the cover via the Rainwater Pumps. The rainwater must
be tested to determine the discharge location for the pumps. If contaminated the rainwater must be
discharged back into the digester, otherwise it may be discharged safely on nearby vegetated areas.
• The anaerobic digester cover should be free of any tears, punctures, or failures.
• There should be no strong odors coming from the digester.
• The secondary lagoon should be clean and free of floating debris. The liquid should be clean an
clear.
Routine System Maintenance Instructions
For optimum operation and maximum efficiency maintenance should be performed daily.
mechanical equipment should be cleaned weekly and lubricated as required. Equipment cleaning
and lubrication should be done as specified in the O&M manuals provided by each equipment's
manufacturer.
Periodically, the sludge accumulated at the bottom of the digester will need to be removed, this will
be done by following the existing Waste Utilization Plan (WUP). The sludge may be removed
through the use of the sludge removal pipes utilizing a temporary pump. All application of the
removed sludge should be done in accordance with the farms approved WUP & Nutrient
Management Plan.
Typically, a portion of sludge will be removed from the digester every other year. Sludge
accumulation can be monitored by the site's operator through the use of inspections ports installed
on the top of the digester cover and should be assessed annually. When assessing the sludge
accumulation, the operator should aim to have as much biogas removed as possible prior to opening
the inspection port to limit release of biogas into the atmosphere. Due to biogas production
declining in cold weather, it is recommended to take sludge measurements during winter. To get a
measurement of the sludge depth, the site operator will use the inspection ports and insert a pipe or
gauge with graduated markings will be used to assess the depth of the sludge in the digester. When
inserting the pipe or gauge caution should be used to avoid applying excessive pressure or even
puncturing the liner of the digester. After sludge removal has been concluded, the operator should
reconnect all fittings from the sludge removal pipes and piping as it was prior to the sludge removal.
Page 6 of 17

y� Register, NC RA270-22
RO E S L E I N Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Safe
Troubleshooting
Refer to equipment O&M manuals as necessary, summarized below:
Emergency Protocols, Repair, and Replacement
The O&M Manuals provided by the equipment manufacturers should be kept onsite in a centralized
location, known to all who work around the equipment. The O&M manuals should provide
instructions for possible field repairs or how to secure a piece of equipment until qualified repair
personnel are able to arrive.
Biogas Hazards
Biogas and oxygen in air can potentially form a flammable mixture.
Methane (CH4) is an odorless, flammable gas. CH4 is lighter than air and tends to rise and dissipate
quickly outdoors.
In addition to being primarily comprised of methane (55 — 60%), biogas is also comprised of carbon
dioxide (35 — 40%), and trace amounts of hydrogen sulfide (H2S), nitrogen (< 2%), oxygen (< 1%),
and water vapor (<8%) which are hazardous.
Hydrogen Sulfide (H2S) has a distinct "rotten egg" odor at low concentrations. However, at higher
concentrations, it overwhelms the sense of smell and cannot be detected. At concentrations > 1000
ppm, it can cause immediate unconsciousness and death through respiratory paralysis. Hydrogen
Sulfide compositions in the biogas feed supply can be at 1500 to 2500 ppm/vol.
Carbon Dioxide (CO2) is a colorless, odorless, tasteless, non -irritating, non -toxic gas. However,
it can act as a simple asphyxiant by displacing oxygen present in air to levels below that required
to support life. In environments with low concentrations of oxygen, confusion and reduced mental
capacities can lead to poor judgement and increase the risk of safety events.
Nitrogen (N2) gas is a colorless, odorless, tasteless, non -irritating, non -toxic, inert gas. However,
it can act as a simple asphyxiant by displacing oxygen present in air to levels below that required
to support life. In environments with low concentrations of oxygen, confusion and reduced mental
capacities can lead to poor judgement and increase the risk of safety events.
Equipment Supplies
All equipment used around the digesters should be qualified to be used in Class Div2 areas.
Proper Protective Equipment (PPE)
All personel working around anerobic digesters should refer to local HSE officer for job specific
PPE requirements and need. At a minimum, the following PPE should be used whenever in the
vicinity of biogas.
0 4-gas personal monitor should be worn when in the vicinity of biogas
o Safety glasses, safety shoes, gloves.
o Personal Floatation Devices — when working on the cover.
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ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Provisions for Safety Measures
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
Restriction of Access
No one should enter any section of the wastewater treatment system unless accompanied
by another person who is able to perform live -saving techniques and should only be done
to perform routine maintenance or a required repair. Before entering a waste collection pit,
lift station well, or any section of the anaerobic digester, all biogas should be removed and
sufficient airflow has been directed into the workplace. Proper airflow can be directed into
the workspace through fans, blowers, or other means. The responsibility of personal safety
is on the person or organization performing the work, and not on the farm owner, associated
equipment providers, or construction contractors.
Emergency Contacts
Emergency contact information is required to be posted at any gates and in the operation
control room.
Equipment Safety Guards, Warning Labels, & Alarms
All safety guards, warning labels, safeties, and alarms for all the equipment shall always
be operational and maintain their location.
Clearances
Keep and maintain all clearances as required by law and as recommended by the
equipment's manufacturers.
Open Flames & Combustion Sources
Ensure that all open flames and combustion sources are kept away from any location where
gas can accumulate. A minimum separation distance of 50 ft is recommended to keep
between any ignition point and the cover of the anaerobic digester. There will be no
smoking near any of the gas treatment systems.
Spill Prevention & Control Provisions
Response to Upsets and Bypasses Including Control Containment and Remediation
All control stations will be equipped with audible alarms. Remote alarms will be provided by a
control system to alert the operator of any problems should they occur.
Contact Information for Emergency Responders and RegulatoryAgencies
All phone numbers for Emergency Responders and Remediation Agencies will be located in an
unobstructed centralized location in the control room.
Facility Control Valves
Control valves installed will allow for operators to isolate sections of the system if a problem were
to occur.
Waffanjy
All Roeslein and its subcontractor/vendor-supplied equipment or parts are warranted to be free from
defective material and workmanship, under normal use and service. Roeslein is responsible for the
operation and maintenance of the treatment system. In the event of any defects developing during the
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ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
normal operation of the system, Roeslein will notify the supplier/vendor in writing, and upon receipt of
their written consent, the parts will be returned promptly to vendor's factory.
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ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
Appendix A: Inflation Rating Guide
Inflation Rating - Lagoon cover inflation should be rated on a scale from 0 to 10. The purpose of this guide
is to provide advice when grading inflation level. Levels that fall in between these defined ratings should
be interpolated.
0: Cover is completely flat, resting on the water.
a-
1: Cover is mostly flat, with pillows around the outside or in some areas.
3: Cover is inflated but center rain trench and laterals are still on water.
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ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
5: Center rain trench is on water but laterals on one side are off the water.
.1'
7: Center rain trench is on water but all laterals are off the water.
r -
9: All laterals and some parts of the center rain trench are off the water.
i
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ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Appendix B: Digester Operation SOP
1. Overview:
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
A Standard Operating Procedure (SOP) is a set of written instructions that document a routine or repetitive
activity followed by an organization. The development and use of SOPS are an integral part of a successful
quality system as it provides individuals with the information to perform a job properly and facilitates
consistency in the quality and integrity of a product or end -result.
The Operations Team should follow the Digester Operation Procedure when operating equipment at the
digester and managing liquid level. For additional information refer to Cover Installer's Operations and
Maintenance Manual.
2. Purpose
The Digester Operation Procedure provides guidance on how to manage digester water level seasonally,
manage cover inflation, and perform surveillance of cover integrity.
3. Scope and Applicability
This procedure is applicable to the Digester Transfer pumps, Mixing Pumps, and digester covers installed
by Roeslein and Associates.
4. Procedure Summary
Transfer Pump Operation
Digester Cover Operation
Daily Checks
Weekly Checks
5. Guidelines/Authority
The Procedure does not strictly fall under any regulated authority.
6. Health/Safety
Refer to Site owners' safety requirements regarding PPE assessment for additional details.
OOOF Biogas and oxygen in air can potentially form a flammable mixture.
Methane (CH4) is an odorless, flammable gas. CH4 is lighter than air and
tends to rise and dissipate quickly outdoors.
c*�r,M Flartmeble Biogas contains primarily methane (55 — 60%), and carbon dioxide (35 —
40%). However, biogas also contains hazardous trace amounts of hydrogen
sulfide (H2S), nitrogen (< 2%), oxygen (< 1%), and water vapor (<8%).
Hydrogen Sulfide (H2S) has a distinct "rotten egg" odor at low concentrations.
However, at higher concentrations, it overwhelms the sense of smell and
cannot be detected. At concentrations > 1000 ppm, it can cause immediate
unconsciousness and death through respiratory paralysis.
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Anaerobic Digester O&M
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Hydrogen Sulfide compositions in the biogas feed supply can be at 1500 to
2500 ppm/vol, however the tail gas/permeate from the membrane routing to
the thermal oxidizer can be in the 10,000 ppm/vol range.
/ Carbon Dioxide (CO2) is a colorless, odorless, tasteless, non -irritating, non-
toxic gas. However, it can act as a simple asphyxiant by displacing oxygen
present in air to levels below that required to support life. In environments
with low concentrations of oxygen, confusion and reduced mental capacities
\� can lead to poor judgement and increase the risk of safety events.
v Nitrogen (N2) gas is a colorless, odorless, tasteless, non -irritating, non -toxic,
a+9o9► NbHKWd inert gas. However, it can act as a simple asphyxiant by displacing oxygen
present in air to levels below that required to support life. In environments
with low concentrations of oxygen, confusion and reduced mental capacities
can lead to poor judgement and increase the risk of safety events.
7. Equipment/Supplies
• Adjustable wrench (standard metal okay to use in Class 1 Div2 areas)
• (PPE) proper protective equipment
0 4-2as personal monitor should be worn when in the vicinity of biogas
o Safety glasses, safety shoes, gloves.
o Personal Floatation Devices — when working on the cover.
• Refer to local HSE officer for job specific PPE requirements and needs.
8. Procedure
No.
Procedural Step Description
Transfer Pump Operation
8.0.1
Transfer pumps transfer water from the covered lagoon digester to evaporative lagoons
to maintain the desired liquid level in the digester.
Lagoon digesters high level is limited to two (2) feet below top of berm (or freeboard).
Lagoon digester low pump level is limited to one (1) foot above the sewer inlet pipe
exit to maintain gas seal. All pipe -berm penetrations must remain sealed with liquid to
avoid allowing biogas escaping through unsealed headers. The low pump level is — 9
ft below top of berm. The lagoon digester cover should be supported by the lagoon
liquid when not inflated. Dropping the lagoon liquid level too low may lead to an
unsupported cover and possible cover stretching and cover damage. Recommended
operation level is 3-4 ft below top of berm to ensure adequate digester biomethane
production and ensure that the level does not exceed 2 ft below top of berm at any time
during operational deviances.
The digester liquid level should be monitored daily. Transfer pumps can be operated
manually or in timer mode. Normally, timer mode should be used as the pumps will
not normally run continuously. During the biogas production season, the liquid level
should be maintained at a higher level. As the production season slows down in the fall,
Page 13 of 17

s1
ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
the digester liquid level should be pumped down slowly to low pump level. This will
allow the maximum amount of manure to be stored during the off season and should be
allowed to fill back up to high level, before starting the transfer pump and discharging
liquid to evaporative lagoons.
Digester Cover Operation
8.1.1
The digester covers are a fully welded system that is integral with the lagoon liners.
Because of soil permeability, the 60-mil liner is utilized and fully welded to the 80-mil
lagoon cover at the perimeter. All cover, liner, and anchor trench sheet material is
HDPE which provides material toughness, flexibility, UV resistance, and water/gas
impermeability. The cover uses 6" grout filled HDPE piping at both the laterals and
center anchor trench. The Laterals are spaced on the order of 42-44 ft apart along the
entire length of the cover and are used to restrain gas movement from one side of the
cover to the other and avoid fast movement of the cover. Laterals are only effective
when they are substantially laying on the digester water operating level. The center
trench is comprised of two parallel pipes that run the center axis along the length. The
center trench is used to both restrain the cover upward movement and to provide an
area in which incident rainwater collects for easier pumping. An 8" corrugated
perimeter biogas collection header is installed around the entire circumference of the
digester cover to ensure generally equal gas inflation around the perimeter during low
gas production and low cover inflation.
The digester cover is a volumetric storage vessel, not a pressure vessel. The cover is
designed to contain the biogas emanating from the digester surface for collection into
the perimeter biogas header. The pressure under the cover operates at 0.0" w.c. (Water
column) to approximately 0.3" w.c. Pressure is not measured as it is immaterial to
operations.
In the event of power outage or emergency, there are two (2) 6" flanged emergency vent
ports directly on the cover, opposite of the swine barns. These ports have lug butterfly
valves and should be used with proper venting apparatus to ensure that the biogas is
vented at an elevation high enough to support safe operator opening and closure of the
valves.
Proper inflation of the digesters is critical to the reliable operation of the plant. A low
level of inflation ensures that ingress of air doesn't occur into the biogas which would
contaminate the gas with nitrogen and oxygen. 100% full inflation ensures that the
covers are in an optimal state for 24-hour net heat gain by the digester and prepared for
normal atmospheric wind conditions. This site has an annual hurricane season which
will involve strong storms and large amounts of rain. The direction below, addresses
normal, winter season, and hurricane season that are predicted. It is ultimately important
to continually monitor weather forecasts at least 5 days out and make any adjustments
in cover inflation in advance.
Page 14 of 17

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ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
The operations group should keep in mind the following items that affect the
performance of the cover.
• Laterals and center anchor trench piping is designed to control the movement
of the cover in all wind conditions. The grid of piping reinforces the cover in
both directions and also acts as a labyrinth in which gas has to pass when
moving during wind conditions, thus slowing the gas velocity and cover
movement.
• More cover contact with the water allows the cover to survive high wind
conditions due to the fact that water surface tension anchors the cover and there
is less volume of gas to move around the cover. Taut cover material also allows
the cover to withstand higher wind conditions.
• Less cover rise above the top of berm reduces the area of cover that wind exerts
force on. Less cover rise around the perimeter also reduces the cover profile
which in turn reduces the Bernoulli lifting mechanism on the cover in high
wind conditions (similar to a plane wing profile)
• HDPE has a relatively large coefficient of thermal expansion. The cover will
be much hotter during the day with sunlight exposure than at nighttime. Also,
radiant heat loss at night will condense water in the biogas space under the
cover, also reducing the total volume of gas under the cover. Methane, Carbon
Dioxide, and Hydrogen Sulfide do not condense but do decrease in volume as
an ideal gas. The volumetric difference in gas over a 24-hour period day to
night is due to the molar water volume in the biogas and biogas temperature
under the cover. The cover and laterals are designed for expansion and
contraction over all biogas ambient dry bulb temperatures between high and
low pump digester levels.
• As the perimeter of the digester is inflated less, less water will run off the cover
around the perimeter. This is beneficial to reduce the possibility of erosion of
the digester berms. Covers are easily pumped off with the Mixing Pumps to a
location several hundred feet from the berm.
The following digester cover operating guidance should be followed by plant operations
group:
1. In all operating conditions, the center rain trench piping shall be fully, 100%,
laying on the digester water surface.
2. In all operating conditions, the laterals shall be at minimum, substantially
laying on the digester water surface. Per operating modes below, maximum
15' of lateral at either end shall be suspended above the surface of the cover.
3. Digesters will produce gas at different rates. The blowers and A2000 piping is
designed to transfer gas between covers to maintain cover inflations within the
cover operating modes below while conserving biogas.
4. Anemometers are installed on the plant and accessible through Ignition. Each
Anemometer indicates wind speed up to 90mph and wind direction. Data is
recorded in the historian. Operators will monitor wind speed and use as
Page 15 of 17

s1
ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
necessary to refine operations compared with predicted winds at remote towns
based on the actual farm surrounding geography.
5. With A3000 fully operational, there is no reason to inventory biogas under the
covers beyond the operating modes detailed below.
Operating Modes:
1. Normal Operation:
a. Cover inflation around the perimeter is no higher than 6' above top of
berm. Inflation will generally vary between 3' to 6' based on wind
speed and direction.
b. Laterals are substantially on the digester water surface with end 10-15'
suspended and end cap at —2' off of liquid surface.
c. Gas cover between laterals is pillowed at nominal 2-4' above water
surface at peaks between the laterals.
d. Cover is tensioned but not tight. The cover will incrementally move in
the wind but with gentle local rolling effect.
e. This mode is applicable for winds sustained and gusts up to 50 mph
from all directions.
2. Winter Season Operation:
a. Cover inflation around the perimeter is no higher than 6' above top of
berm. Inflation will be generally 3' to 5' based on wind speed and
direction.
b. Laterals are fully on the digester water surface, including end cap.
c. Gas cover between laterals is not pillowed and flat on the water with
the exception of naturally occurring and sporadic cover rolls/channels.
d. Cover is tensioned but not tight. The cover will incrementally move in
the wind but with gentle local rolling effect.
e. This mode is applicable for winds sustained and gusts up to 65 mph
from all directions.
3. Hurricane / High Wind / Intense Storm Predicted:
a. Cover inflation around the perimeter is no higher than 3' above top of
berm. Nominal inflation above top of berm is 1.5' to 2'.
b. Laterals are fully on the digester water surface, including end cap.
c. Gas cover between laterals is not pillowed and flat on the water with
the exception of naturally occurring and sporadic cover rolls/channels.
d. Cover is tensioned but not tight. The cover will incrementally move in
the wind but with local rolling effect.
e. Cover will be flat extending from the ends of the laterals towards the
anchor trench for at least 20'.
f. This mode is applicable for winds sustained and gusts above 65 mph
from all directions. If winds are expected to exceed 75 mph, the
blowers (preferentially) and or emergency vents (if required) should be
used to evacuate substantially all gas.
Page 16 of 17

s1
ROESLEIN
ENGINEERS • MANUFACTURERS • CONSTRUCTORS
Register, NC RA270-22
Anaerobic Digester O&M
Revision: 0
Effective Date: 4/15/2024
Daily Checks
8.2.1
• Visually inspect the digester water operation level to ensure 3-4 ft of freeboard.
Work with the farm to adjust timers if required to bring the level back into target
range.
• Visually inspect the digester cover and quantify inflation level and laterals
position.
• Visually inspect and quantify area of digester cover occupied by water. Utilize
pumping systems to remove surface water from the center anchor trench.
Weekly Checks
8.3.1
Walk perimeter of digester checking for:
• Leaks via a gas monitor or methane detection device around the base of the
cover and the anchor trench. Use of soapy water from an orchard sprayer may
also be used to detect leaks during cool cover conditions and still wind.
• Torn ballast straps or laterals that are not aligned straight.
• Settling or erosion around berm
• Any running equipment for an uncharacteristic operating state (noise/vibration)
• Sample cover rainwater to determine if it is "hot" aka contains dissolved
ammonia because contaminated cover water is an indication of a possible
digester cover leak and will need to be pumped under the cover.
• Trash and foreign matter on the cover can cause problems with normal
operation. If debris becomes wedged between the ballast weight and cover it is
possible for punctures to occur. Additionally, foreign matter can cause the rain
collection channels to become blocked and disrupt flow of the rainwater. All
operators and contractors working on top of the digester should be cognizant
of the perimeter rock and make sure not to kick the rock into the digester.
Furthermore, a yearly pre -season inspection should occur to inspect for and
remove any debris along the entire length of ballasts.
Page 17 of 17

Sampling protocol and schedule for Monarch sites
Date: 04/09/2024
Sample collection at all sites should be done using the sampling protocol outlined below. A submittal sheet will be sent to the person in charge
of sampling prior to sampling. The respective person is responsible for print submittal forms, conducting sampling, label samples as per submittal
form, safely storing (refrigerated containers during storage) and shipping samples to the respective lab (instructions on submittal form)
Required accessories:
1. Telescopic sampler extendable to 18 feet and the pendulum beaker
2. Gloves and sampling containers
3. Ice packs.
4. Sampling submittal forms
5. Safety supplies
During sampling event two people should be responsible while supporting tasks (shipping etc.) can be conducted by the person in charge alone.

Sampling protocol for digester samples
1. Effluent samples are intended to be collected for all sites from shortlisted digesters on a quarterly basis. Sampling to be conducted by
two persons at the site.
2. Label all sampling containers with respective sampling ids. (Refer sample list for Sample IDs)
3. The sample must be collected from the crossover pipe/wet well using the telescopic sampler and 5-gallon bucket while following all site -
specific safety policies, including Lagoon Access Safety Procedure
4. Sampling from a Cross over pipe
a. On opening the valve on cross over pipe it is recommended to allow enough time to pass such that the standing debris in the
pipe is flushed out and a good representative sample can be collected.
b. Collect 3 x 500 mL samples using the sampler into a clean 5-gallon bucket.
c. Repeat this procedure 2 more times, while collecting all the samples into the same 5-gallon bucket.
d. Allow sufficient time between two collection events such that pipe contents are flushed.
e. At the end of the sampling event, you may have — 1.3-1.5-gallon sample, homogenize the contents of the bucket gently mixing
using the sampler and the pendulum beaker on the sampler.
5. Sampling from a wet well
a. Using the telescopic sampler (beaker attached to the rod) gently homogenize contents of the wet well.
b. Collect 6-8 beakers of sample into a 5-gallon bucket from different areas of the wet well to get a representative sample.
c. Gently homogenize the contents of the bucket.
6. Grab a sample from the homogenized mixture to fill the labeled sampling container and put the container cap tightly ensuring a
watertight seal.
7. If the samples are to be stored for more than 2 hours before shipping, store them in a refrigerator preferably 4C or lower.
8. If refrigeration is not available use frozen icepacks to cool the samples and replace icepacks at regular intervals., store the samples in a
well -ventilated space.
9. DO NOT STORE SAMPLES IN REFRIGERATORS MEANT FOR FOOD STORAGE
10. Ship samples to the lab (details in the submittal form) to deliver overnight. Include ice packs in the shipping box to keep samples cool
during transit.

Sampling protocol for lagoon liquid samples (EVAPI
1. Lagoon liquid samples are intended to be collected from all the open lagoons at every site on a quarterly basis.
2. Label all sampling containers with respective sampling ids. (Refer sample list for Sample IDs)
3. The sample must be collected from the multiple spots (6-8) in the open lagoon using the telescopic sampler and 5-gallon bucket while
following all site -specific safety policies, including Lagoon Access Safety Procedure
4. Use the 18 feet telescopic sampler to reach lagoon water surface from the berm, it is needed that the sampling in charge is accompanied
by another operator onsite for this sampling for ease of equipment handling and safety.
5. Collect 2 x 500 mL samples at each spot, using the sampler into a clean 5-gallon bucket.
6. Repeat this procedure at all 6-8 randomly chosen spots along with periphery of the lagoon, collect all the samples into the same 5-gallon
bucket.
7. At the end of the sampling event, you may have — 1.3-1.5-gallon sample, homogenize the contents of the bucket gently mixing using the
sampler and the pendulum beaker on the sampler.
8. Grab a sample from the homogenized mixture to fill the labeled sampling container and put the container cap tightly ensuring a
water/airtight seal.
9. If the samples are to be stored for more than 2 hours before shipping, store them in a refrigerator preferably 4C or lower or use frozen
icepacks to cool the samples in a small container and replace icepacks at regular intervals, store the samples is a well -ventilated space.
10. DO NOT STORE SAMPLES IN REFRIGERATORS MEANT FOR FOOD STORAGE
11. Ship samples to the lab (details in the submittal form) to deliver overnight. Include ice packs in the shipping box to keep samples cool
during transit.

Sludge survey and sampling from secondary lagoon
1. The secondary lagoon, source of sludge, will be sampled for sludge levels once every year.
2. The sludge sampling will be conducted once every four years to determine sludge composition especially Nitrogen, Phosphorus,
potassium, and other micronutrients.
3. This sampling protocol is intended to help evaluate progression of sludge level in the secondary lagoon and its composition for its
agronomic management.
4. Sludge sampling will be conducted using a sludge judge, while sludge surveys will be conducted using sonar devices that can be
remotely controlled from the berm following all site -specific safety policies, including Lagoon Access Safety Procedure

Recommended analysis
Table 1 Recommended tests for lagoon/digester effluent sampling
Digester effluent, secondary lagoon effluent and sludge testing
Manure package
Eff-MMDDYY
Inff-MMDDYY
Nitrogen, Ammonium Nitrogen,
Organic Nitrogen, Phosphate, Potash,
Calcium, Copper, Iron, Magnesium,
Manganese, Sodium, Sulfur, Zinc,
Moisture/Total Solids, Total Salts, pH
VS
Alkalinity
Volatile organic acids
COD
BOD5
Total testing cost
Amongst the manure package TS, Ammonium nitrogen, pH are mandatory tests and if done separately cost more than the package.
Table 2 Optional tests for lagoon/digester effluent sampling
Orthophosphate
Sulfate
Sulfide
EC
Carbon

ROESLEIN
Location — Monarch Bioenergy — Farm Name, City, State
In the event of an environmental release, there are four critical steps to follow:
1. Stop the flow— attempt to stop the source of the release.
DOCUMENT WILL BE FILLED OUT
AS PART OF AS -BUILT SUBMISSION
Policy
Spill Response —Policy
Revision: 1
Effective Date: 11/21/2023
• Try to keep the spill from becoming worse. If there is a way to stop the spill or minimize it becoming worse,
take those actions. These may be actions such as closing valves or shutting down a system, depending on
the source.
2. Contain the release.
• Take steps to keep the spill from spreading to other areas or entering ditches or freshwater.
• Depending on the situation, this may mean using equipment to create a barrier/berm; putting down some
type of absorbent material or neutralizer; or other materials to create a perimeter.
3. Report the release immediately to the following:
Name
Title
Phone Number
-
Owner Operator —Farm Name
-
Seth Renfro
Director of Operations
660-654-1656
TBD
On -site Operations Manager
TBD
Jerri Ann Garrett
EHS Manager
660-425-4861
Be prepared to provide the following information when you call:
• Where is the release located (be specific)?
• What kind of release is it (be specific)?
• Approximately how much was released.
• Has the release left the property?
• Has the release encountered surface water, ground water, a drainage tile or intake, or other potentially
freshwater areas?
• Has the source of the release been stopped?
• Is the release contained?
An environmental spill is a discharge of one or more hazardous substances that adversely impact, or threaten to
adversely impact human health, welfare, or the environment and requires and immediate response.
Ensure all discovered environmental releases are reported immediately to Roeslein and Conine Farms.
Hazardous substance releases in which will reach waters of the state must be reported to the state within 8
hours, therefore, it's important to ensure Roeslein and Conine Farms are notified immediately.
4. Cleanup the spill —if the spill was not caused by Roeslein, Conine Farms will be responsible forcleanup.
*Note: There is a passive overflow line from the water management wet well to the evaporation lagoon at 1.5'
freeboard. If the water management pumps are not working, the lagoon effluent will overflow into the
evaporation lagoon.
S. ALL ON -SITE EMPLOYEES SHALL FOLLOW APPLICABLE SECTIONS OF 'COMMON SITE PRACTICES FOR ON FARM
ANAEROBIC DIGESTION SYSTEM'— SEE ATTACHED
Page 1 of 1
https://prideconveymcesys.sharepoint.com/sites/RAESafetyGroup/Shaved Documents/Envim cntal/Milford SFLocations Spill Response Procedures 091423.docx Printed: 9/15/20237:23 AM

Common Safety Practices
for On -Farm Anaerobic
Digestion Systems
December 2011

Safety Practices for On -Farm Anaerobic Digestion Systems
TABLE OF CONTENTS
1.0 INTRODUCTION.......................................................................................................................... I
2.0 SAFETY HAZARDS FOR ANAEROBIC DIGESTION...........................................................1
2.1 GENERAL SAFETY PRECAUTIONS............................................................................. 2
2.1.1 Drowning............................................................................................................... 2
2.1.2 Fall protection........................................................................................................ 2
2.1.3 Burns...................................................................................................................... 3
2.1.4 Entanglement hazard.............................................................................................. 3
2.1.5 Feedstock and digestate spills................................................................................ 4
2.1.6 Mechanical failures................................................................................................ 4
2.1.7 Lockout/Tagout......................................................................................................5
2.1.8 Ignition sources...................................................................................................... 5
2.1.9 Noise levels............................................................................................................6
2.2 CONFINED SPACE ENTRY............................................................................................. 7
2.2.1 Definition............................................................................................................... 8
2.2.2 Confined space training, certification, and rescue plan ......................................... 8
2.2.3 Inspect atmosphere prior to entry........................................................................... 9
2.2.4 Safety equipment.................................................................................................... 9
2.3 HAZARDS ASSOCIATED WITH BIOGAS...................................................................10
2.3.1 Asphyxiants ...........................................
10
2.3.2 Immediately dangerous to life and health............................................................11
2.3.3 Explosion potential.............................................................................................. 11
2.4 ELECTRICAL SYSTEM HAZARDS..............................................................................12
2.4.1 High voltage.........................................................................................................12
2.4.2 Low voltage.........................................................................................................12
2.4.3 Electrical fires...................................................................................................... 13

Safety Practices for On -Farm Anaerobic Digestion Systems
3.0 MAINTAINING A SAFE WORKING ENVIRONMENT.......................................................13
3.1 EMERGENCY ACTION PLAN......................................................................................13
3.1.1 Directions to AD facility......................................................................................14
3.1.2 Contact information.............................................................................................14
3.1.3
Site map...............................................................................................................15
3.1.4
State and local health and safety requirements....................................................15
3.1.5
Equipment vendor manuals..................................................................................15
3.2 SAFETY AND EMERGENCY EQUIPMENT................................................................15
3.2.1
Anaerobic digester facility(onsite)......................................................................15
3.2.2
Locally (able to be onsite within a few hours) .....................................................
16
3.2.3 Baseline environmental conditions......................................................................16
3.3 ELECTRICAL.................................................................................................................. 17
3.3.1 Daily inspections.................................................................................................. 17
3.3.2 Switches, controllers, fuses, and breaker panels..................................................17
3.3.3 Roles of operators................................................................................................18
3.3.4 Visitors on site..................................................................................................... 18
3.4 PERSONAL PROTECTIVE EQUIPMENT.....................................................................18
3.5 ACCIDENT PREVENTION SIGNS AND TAGS...........................................................18
3.6 PERSONNEL TRAINING REQUIREMENTS...............................................................19
4.0 CONCLUSION.............................................................................................................................19
5.0 REFERENCES.............................................................................................................................20

Safety Practices for On -Farm Anaerobic Digestion Systems
1.0 INTRODUCTION
Several safety hazards exist when converting manure and organic residuals (non -farm
feedstock) into energy using anaerobic digestion (AD) technology. These hazards can cause
serious bodily harm and in some
circumstances, can be fatal. Common hazards
associated with AD systems include drowning,
electric shock, and noise exposure. However,
biogas and its constituents, many of which are
colorless and odorless, can unknowingly
expose operators and visitors to hazards such
as asphyxiation and burns due the flammable
nature of methane. Workers must take
proper precautions when handling and storing
organic material and managing the
production of electricity and combustible
gases.
The purpose of this document is to identify
the major hazards associated with an AD
facility and outline basic practices that will
help maintain a safe and successful working
environment. The intended audience for this
guide is owners and operators, and the guide
is not intended to replace safety training or
instruction, but rather enhance it.
2.0 SAFETY HAZARDS FOR
ANAEROBIC DIGESTION
Figure 1: Safety signage on AD feed system
A A-
A0Oy
The following sections identify major hazards that can exist with an AD facility. These include:
• General safety precautions
• Hazards associated with biogas
• Confined space entry
• Electrical system hazards
Figure 1 shows a feed hopper for an anaerobic digester with a dozen warning signs, including
fall, entanglement, and explosion potential.
1

Safety Practices for On -Farm Anaerobic Digestion Systems
2.1 GENERAL SAFETY PRECAUTIONS
The following sections describe general safety concerns associated with AD facilities.
2.1.1 Drowning
Liquid tanks and ponds for storage pose a drowning threat.
Whenever a drowning potential exists, ring buoys, ropes, or
ladders should be readily available for rescue purposes
(Occupational Safety and Health Administration [OSHA],
2002). The drowning risk is highest when employees are
servicing equipment located in digester or storage tanks.
Accidental drowning can occur when people unfamiliar with
the farm and manure handling system mistakenly enter
storage structures. Slipping on a synthetic liner or walking
on crusted manure storage are examples of situations that
can lead to accidental drowning. OSHA suggests posting
signs similar to the one shown in Figure 2 and erecting
fences around manure storage structures to reduce the
potential of an individual or animal unknowingly entering
one.
Figure 2: Manure storage
warning sign in English and
Spanish
LIQUID
MANURE
STORAGE
ALMA. ERAJE
DE ETIILROL
L QU.10
If an individual is drowning, the first step should be to call 911, followed by a rescue attempt
using a life preserver, rope, or ladder. The presence of biogas—an asphyxiant that can cause a
person to pass out —can increase the potential of manure storage drowning. (Biogas hazards
are discussed in greater detail in Section 2.3.) Individuals attempting to rescue a drowning
individual should never enter a manure storage structure because they could also be overcome
by the poor air quality.
2.1.2 Fall protection
Serious injuries can result from falls of any distance. When possible, employees should perform
maintenance work from the ground. At most AD facilities, however, multiple elevated locations
are present. For example, equipment on the top of aboveground AD tanks are 10 to 25 feet off
the ground. According to the OSHA general industry standard any "time a worker is at a height
of four feet or more, the worker is at risk and needs to be protected" (OSHA, 2008A). Fall
protection, such as guardrails, a safety harness (also discussed in Section 2.2.4), and self -
retracting lifelines, should be used when an employee is above the 4-foot threshold (API, 2006).
The enclosed fixed ladder and guardrail system on the feedstock storage tank shown in Figure 3
complies with OSHA fall protection standards.

Safety Practices for On -Farm Anaerobic Digestion Systems
Another common example of a fall risk is shown in
Figure 4, where a ladder is leaned against a feedstock
storage tank. The two concerns with the situation
presented in Figure 4 are: (1) the tank height is
approximately 10 feet and (2) there are no securing
devices or slip resistant feet on the ladder, nor is
there a rope to secure the top. When ladders are
used to access elevated equipment, they should be
secured and supervised at all times. Once the ladder
is no longer needed, it should be removed.
2.1.3 Burns
Throughout an AD facility, pipes containing hot fluids
or exhaust gas can pose potential burn hazards.
Other potential sources of burns are heat exchangers,
boilers, pumps, or engine generators, where
temperatures can exceed 160°F. Simply rubbing up
against a heat exchanger or accidently placing a hand
on a hot pipe can result in serious burns. All
employees and visitors to the AD facility should be cautioned not to touch any equipment or
pipelines.
Figure 3: Permanent ladder and
guardrail on feedstock storage tank
When possible, hot surfaces should be identified as burn hazards, and all pipes should be
clearly labeled to indicate the contents,
Figure 4: Ladder leaning on feedstock storage flow direction, temperature, and pressure.
tank
Insulation should be used to encase the
pipe and reduce the potential for
accidental burns. Figures 5 and 6 provide
examples of pipeline insulation and
labeling.
2.1.4 Entanglement hazard
Pumps, augers, impeller mixers, chains,
drive shafts, and other machinery pose
entanglement hazards due to pinch points
and other moving parts. In most AD
systems, the primary exposure to
entanglement is the unguarded driveshaft
3

Safety Practices for On -Farm Anaerobic Digestion Systems
of a pump. To reduce the entanglement risk,
all equipment safety guards should be in
place and individuals should tie back long
hair and avoid wearing loose -fitting clothing
and jewelry.
2.1.5 Feedstock and digestate spills
Figure 5: Insulated and labeled hot water
pipes
Feedstock (any organic material entering the TURN
ar.
digester) and digestate (any material exiting
the digester) should be carefully transferred
and contained. In the event of a major I r'
feedstock or digestate spill, workers should a
exercise caution when containing the F! N
material. The first stepshould be to control
the source causing the spill. Once this is %i5 SIDE up
achieved, workers should contain the spill by;
constructing temporary containment
structures around the affected area. Excavation equipment such as bulldozers and backhoes
should be readily available for this purpose. Isolating the spill reduces potential damage to
nearby buildings and contamination of surface
Figure 6: Biogas pipeline indicating waters and sensitive areas. After containing the
temperature and flow direction spill, the facility should notify the proper
authorities (as defined by state -specific permits), to
'I
comply with all applicable local, state, and federal
regulations. For non -farm feedstocks, such as food
waste, the spill -reporting agency should be clearly
identified on all records related to the material,
including material safety data sheets (MSDS) and
manifest logs indicating the date, quantity, and
material (feedstock) brought onto the farm. The
final step in spill response is site cleanup and
restoration.
2.1.6 Mechanical failures
In the event of a mechanical failure, workers should reference the vendor manuals to
troubleshoot the issue. Vendor manuals for mechanical machinery should be organized and
included in the emergency action plan, which is discussed in Section 3.1. Only trained staff
4

Safety Practices for On -Farm Anaerobic Digestion Systems
should be permitted to repair digester equipment. Operators should use lockout/tagout
procedures (see Section 2.1.7) during all mechanical equipment repairs.
To avoid mechanical failures, the system operator, with support from the technology provider,
should develop a preventative maintenance manual for the site.
2.1.7 Lockout/ragout
According to OSHA standard 29 CFR 1910.147,
lockout/tagout refers to the specific "practices and
procedures to safeguard employees from the
unexpected energization or startup of machinery and
equipment, or the release of hazardous energy during
service or maintenance activities" (OSHA, 2007A).
Simply stated, before an employee services a piece of
electrical equipment, the power supply should be
turned off and the employee should place a padlock on
the power supply. The padlock serves to prevent
someone else from accidently re -energizing the
equipment being serviced. The lock should have a tag
on it identifying the individual who locked out the
Figure 7: Electrical panel turned off
and locked out
equipment. In Figure 7, one of the four electrical breakers shown is turned off (disengaged) and
locked out. Once a piece of equipment has been locked out, the only individual with the
authority to unlock that piece of equipment is the person who initially locked it out.
Employees should follow this practice every time they service any electrical or electrically
powered equipment. OSHA estimates that compliance with lockout/tagout procedures
prevents an estimated 120 fatalities and 50,000 injuries each year in the United States (2007A).
2.1.8 Ignition sources
Biogas generated during anaerobic digestion is flammable. Over the past couple of years,
several AD systems have been damaged or destroyed by fires fueled with biogas. While no
specific setbacks or standards have been established for biogas, facilities should observe
standards for similar systems. The National Fire Protection Association (NFPA) has established a
range of setback distances for liquid propane (LP) fuel based on storage capacity (2009). For LP
gas, the setback ranges from 10 feet for small storage devices (<500 gal water capacity) to 100
feet for large storage systems (>70,000 gal water capacity).

Safety Practices for On -Farm Anaerobic Digestion Systems
Smoking and open flames should be prohibited in
the general vicinity of the digester and a setback
distance of 25 to 50 feet is suggested for all
possible ignition sources to reduce the potential
for fire or explosion. Ignition sources can include
(but are not limited to) light switches, electric
motors, pilot flames, and cell phones. Facilities
should designate smoking areas at least 50 feet
from the digester system to ensure that visitors
and employees do not inadvertently create an
ignition source. Signs, like the one shown in Figure
8, should also be used to warn all individuals of
the explosion or fire risk associated with AD
systems.
The National Electric Code (NEC, 2005) dictates
that electrical wiring near combustible gas must
conform with the Class 1, Division 1 hazardous
location standard. Biogas is combustible, so the
Figure 8: Explosion potential sign
hazardous location standard should be applied to AD systems' electrical wiring.
For repairs requiring open flames or electric spark, ventilation should be provided such that
methane levels are maintained below a safe level, as discussed in Section 2.3.3.
Figure 9: Gen set enclosure with hearing
protection warning sign
2.1.9 Noise levels
Exposure to high levels of noise can
result in discomfort or short-term
hearing loss. In extreme cases, or if the
noise exposure occurs over a long
period of time, permanent hearing loss
can occur. The main source of high
noise levels is the engine generator set
(gen set). Actual decibel (dB) levels
produced at an AD facility will differ due
to varying acoustical settings, but a gen
set can produce between 100 —140 dB
(Fenton, 2011). The facility is required
to supply noise protection devices, such
N.

Safety Practices for On -Farm Anaerobic Digestion Systems
as earplugs, to employees and visitors who are exposed to high noise levels (OSHA, 200813) (See
Table 1). Handheld decibel meters are widely available and provide an inexpensive method to
quickly determine the noise level. Also, OSHA encourages posting signs indicating "hearing
protection is required in this area." (See Figure 9).
Table 1: Safe maximum allowable decibel level (OSHA, 2008B)
Duration per day (hours)
Sound level (dB)
(as measured with a sound level meter set on slow response
8
90
6
92
4
95
3
97
2
100
1.5
102
1
105
0.5
110
0.25
115
2.2 CONFINED SPACE ENTRY
Constituents of biogas, including carbon dioxide, methane, and hydrogen sulfide, present the
potential for both asphyxiation and fire or explosion in confined spaces. It is important to
remember that even a few gallons of manure or other organic material in a tank or confined
space can pose a serious health risk under
Figure 10: Basic confined space warning sign
the right conditions. A recent example of
confined space entry fatality occurred in
July of 2010 when two farm employees died
while cleaning a storage tank similar to the
one shown in Figure 4 (Michigan
Department of Energy, Labor and Economic
Growth [MEDLEG]). Signs should be used to
alert employees and visitors when confined
space entry risks exist. Figure 10 shows an
example of a standard confined space
warning sign. The following background
PELIGR
"Elm:
CONFINED
SPACE
ESPACIO LIMATADO
information and guidelines are intended to promote a safe working environment when
confined space is involved.
7

Safety Practices for On -Farm Anaerobic Digestion Systems
2.2.1 Definition
"Confined space" is defined by OSHA as "having a limited or restricted means of entry or exit;
large enough to bodily enter and perform tasks; and lastly, not designed for continuous
occupancy." Currently, state -by -state standards vary for permit -required confined spaces
training for agriculture; however, confined spaces are widely recognized as a common hazard.
Confined spaces include, but are not limited to, tanks, pits, silos, underground vaults, storage
bins, and manholes (MDELEG, 2010).
2.2.2 Confined space training, certification, and rescue plan
Employees associated with AD systems or who manage organic residuals MUST be trained in
confined space entry to maintain a safe working environment (Gould, 2010). Several cases have
resulted in fatalities due to a lack of understanding of the hazards associated with confined
spaces. As discussed earlier, two farm employees died when they were overcome by a lack of
oxygen while cleaning a feedstock storage tank (MDELEG, 2010). The employees were power
washing a tank that contained only 6 to 8 inches of molasses residue, which had sat unused for
five to six months. By conducting basic employee education and strictly adhering to OSHA
confined space entry guidelines, facilities can provide a safe working environment for farm
employees.
Currently, OSHA does not require farms to offer
specific training for confined space entry;
however, it is the employer's responsibility to
educate employees in order to maintain a safe
working environment. When entering a confined
space, the "buddy system" should be used, in
which any person entering a confined space is
monitored from a safe distance by a second
person. The employee entering the confined
space must wear a harness attached to a
retraction device that the second employee can
activate to pull the individual to safety in an
emergency.
The facility should develop a rescue plan for
emergency confined space entry situations. This
plan should describe the use of the safety
Figure 11: Handheld multi -gas detectors
d D
a
19
Irnagesfrorn Goo•gle irnages
equipment in emergency situations, the actions to be taken, and the personnel responsible for
each action. The plan may also include training and certification information.
RI

Safety Practices for On -Farm Anaerobic Digestion Systems
2.2.3 Inspect atmosphere prior to entry
Before entering a confined space, a worker must test the atmosphere inside the space, as
required by OSHA general industry standard 1910.146 (1998). The person can perform this
testing using a handheld multi -gas detector capable of detecting oxygen, carbon monoxide,
hydrogen sulfide, and lower explosive limits (LEL) levels. Several models of multi -gas detectors
are shown in Figure 11. When testing the atmosphere within a confined space, the employee
should remain outside in a safe location. Many multi -gas detectors are equipped with an
extension hose for this purpose.
In compliance with standards (OSHA, 1998), the employee should test for the following:
Oxygen level: above 19.5 percent by volume air
2. Methane: below 5 percent by volume of air
3. Hydrogen sulfide level: below 20 parts per million (ppm)
If any of the above conditions are not met, the atmosphere is deemed hazardous and should
not be entered by any personnel until forced ventilation has eliminated the hazardous
conditions. During entry, continuous ventilation with an explosion -proof blower will ensure that
fresh air is displacing any hazardous air that may be trapped in the confined space. Workers
must maintain and calibrate this equipment
according to the manufacturer's
recommendation in order to effectively monitor
atmospheric conditions.
2.2.4 Safety equipment
When entering a confined space, an employee
should wear a safety harness attached to a
winch or pulley outside of the pit. Examples of
safety harnesses and a winch are shown in
Figure 12. This safety precaution, allows a
coworker to assist a trapped employee without
having to enter the space in the event of an
emergency.
A self-contained breathing apparatus (SCBA)
should be used only in emergency situations.
Figure 12: Safety harnesses, ropes, and a
chain fall at an AD facility

Safety Practices for On -Farm Anaerobic Digestion Systems
Figure 13 shows a basic backpack -style SCBA with fitted facemask. Any employee using a SCBA
must be properly trained and fitted for using the equipment. For an individual to become
certified in confined space entry, they should consult the
State approved OSHA administration.
2.3 HAZARDS ASSOCIATED WITH BIOGAS
AD biogas is composed of three main constituents:
methane, hydrogen sulfide, and carbon dioxide. Each of
these gases can be dangerous under certain circumstances.
Common hazards associated with biogas include
asphyxiation and fire or explosion potential.
Overall, it is always a good idea to test the atmosphere
when biogas may be present as well as maintain proper
ventilation. Workers can use a handheld multi -gas detector,
similar to one of those shown in Figure 11, to determine if
hazardous levels of biogas are present. Low-cost detectors
will simply identify dangerous level of biogas, while higher
end detectors can report specific concentrations of the
primary biogas components.
2.3.1 Asphyxiants
Gases that prevent the uptake of oxygen into human cells
are referred to as asphyxiants. There are two categories of
Figure 13: Self-contained
breathing apparatus
Imagefrom httl;:;';':r::::.envisupl;lV.com/
asphyxiants: simple and chemical. A simple asphyxiant displaces oxygen, and chemical
asphyxiants "reduce the body's ability to absorb, transport, or utilize inhaled oxygen.
Asphyxiants are often active at very low concentrations (a few ppm)" (Lawrence Berkeley
National Laboratory, 2008). Asphyxiant gases are present wherever there is storage of an
organic material; therefore, manure pits or any other areas for organic material storage
become potentially dangerous. Following are the various asphyxiants that are typical
constituents of biogas.
• Simple asphyxiants —carbon dioxide and methane
• Chemical asphyxiants — ammonia and hydrogen sulfide
10

Safety Practices for On -Farm Anaerobic Digestion Systems
2.3.2 Immediately dangerous to life and health
Within confined spaces and other covered areas, the potential exists for atmospheric
concentrations to develop that become immediately dangerous to life and health (IDLH). An
IDLH condition can be defined as an atmospheric concentration of any toxic, corrosive, or
asphyxiant substance (simple or chemical) that "poses an immediate threat to life or would
cause irreversible or delayed adverse health effects or would interfere with an individual's
ability to escape from a dangerous atmosphere" (OSHA, 2008C). Following are the main IDLH
concerns when handling the production of biogas (Center
for Disease Control and Prevention, 1995).
• Oxygen deficiency — less than 19.5 percent by
volume air
• Hydrogen sulfide — more than 100 ppm
• Ammonia — more than 300 ppm
• Carbon dioxide — more than 40,000 ppm
Signs similar to the one shown in Figure 14 should be used
to alert employees and visitors of the potential for IDLH
conditions. Areas prone to these conditions include
structures housing the gen set or boiler, below grade pump
chambers, and biogas storage devices.
Figure 14: Sign indicating IDLH
potential
DEADLY MANURE GASES POSSIBLE
DEATH
MAY BE IMMEDIATE!
ENTER PITONLY WITH:
• SELF-CONTAINED AIR SUPPLY
• VENTILATION
• RESCUE HARNESS, MECHANICAL
LIFT, STAND-BY PERSON
A simple and convenient way to ensure the safety of an area's atmosphere is by installing a
wall -mounted sensor that can detect hazardous gases (e.g., methane, LEL, hydrogen sulfide,
carbon monoxide). In the event that a hazardous gas sensor is triggered, the emergency action
plan (see Section 3) should be implemented.
2.3.3 Explosion potential
Methane, the main component of biogas, is flammable
when it mixes with air. Upper and lower explosive limits
(LEL) are established to provide an identifiable range of
concentrations that will produce a flash fire when an
ignition source is presented. The LEL is often referred to as
a flammable limit. For methane, the lower and upper
explosive limit is 5 percent and 15 percent by volume of
air, respectively (Linde Gas LLC, 1995).
Figure 1S: Safety signs posted
at AD facility
11

Safety Practices for On -Farm Anaerobic Digestion Systems
2.4 ELECTRICAL SYSTEM HAZARDS
The generation of large quantities of electricity at an AD facility creates electrical hazards, most
of which can be found near the gen set, transformer, and electrical panels. The only personnel
with the authority to service and repair electrical systems are licensed electricians. In addition,
the facility should post signs identifying general electrical hazards near the electrical generation
system (see Figure 15 for an example of basic signage).
2.4.1 High voltage
Any electrical source above 600 volts is
considered high voltage (NEC, 2005). Typically,
transmission lines from the transformer are the
source of the highest voltage on a farm. A
transformer is a piece of machinery used to
increase the voltage, allowing for more efficient
transport of the electricity. When dealing with
such high voltage, the main hazard is contact
with exposed leads, which could be fatal. Figure
16 shows exposed lead transformers commonly
used on utility poles. Ground -mounted
transformers used on farms and at AD facilities
are typically enclosed like the one shown in
Figure 16: Standard electrical
transformer with exposed leads
Figure 17. Enclosed transformers should remain sealed
Figure 17: Enclosed electrical and locked at all times, and only a licensed electrician
transformer should perform transformer maintenance.
'� 1l
2.4.2 Low voltage
All electrical sources less than 600 volts are considered
low voltage (NEC, 2005). Typically, switches,
_ - controllers, fuses, breakers, wall outlets, and electrical
panels are considered low -voltage devices. One major
hazard associated with electrical panels is arcing, which
occurs when electricity from an energized source
jumps a gap of air and discharges into an adjacent conductive surface, typically metal. If an
individual happens to be in the pathway of the arc, they can be seriously burned or killed. Cover
plates are used to contain arcing by shielding the employee from any potential harm.
Therefore, the facility should ensure that the proper cover plates are intact and correctly in
place on the panel or outlet.
12

Safety Practices for On -Farm Anaerobic Digestion Systems
2.4.3 Electrical fires
In the event of an electrical fire, the person fighting the fire should use an ABC classified multi-
purpose fire extinguisher rather than a water -based fire extinguisher, which could result in
electrocution. If possible, the electricity should be shut off to the facility before fighting the fire.
The facility should train operators to identify the difference between electrical fires and
ordinary combustible fires (Wallenwine, 2011).
3.0 MAINTAINING A SAFE WORKING ENVIRONMENT
AD facilities can provide a safe working environment, as long as proper safety measures are
taken. The following sections present recommended steps for maintaining a safe working
environment at AD facilities, adapted from the self -assessment guide prepared by Nellie Brown
(2007), titled "Conducting a Safety Walk-through on a Farm: Hazards of the Manure Handling
System, Anaerobic Digester, and Biogas Handling System" and the emergency action plan
requirements of the National Pollution Discharge Elimination System (NPDES) program.
3.1 EMERGENCY ACTION PLAN
In most states, AD facilities are required to have emergency action plans (EAP) as part of their
NPDES permits. A major objective of an EAP is to develop response protocols to specific
emergencies so that if an accident occurs the facility will conduct the appropriate actions in the
correct sequence. As a general recommendation, each situation should be broken down into
the following components.
Assess the extent of damage in the following order:
a. Human health
b. Environmental health
C. Mechanical integrity
2. Correct the problem immediately if possible.
3. Contact the appropriate agencies and personnel to resolve the problem.
The contents of an EAP should be well organized in a binder or an electronic file and distributed
to all employees so that they are informed of the proper safety protocols. The facility should
provide local emergency departments with a copy of the EAP and invite them for a tour of the
operation so they can become familiar with the facility. Also, the facility should post a copy in a
highly visible area where visitors enter the facility.
13

Safety Practices for On -Farm Anaerobic Digestion Systems
To maintain an effective EAP, the facility should perform an annual review of the document to
keep it up to date. Conducting annual training sessions will ensure that employees have a basic
understanding of the EAP. The following sections present the recommended content to be
included in an EAP.
3.1.1 Directions to AD facility
Often, the AD facility is not clearly visible from the main road, especially if it is located in an
agricultural setting. Therefore, detailed driving directions from the closest major road,
intersection, or town to the physical location of the AD facility should be included in the EAP.
3.1.2 Contact information
The EAP should provide a list of emergency and non -emergency contacts, including the job title
and cell phone number of each person. Recommended contacts are:
• Farm or AD owner
• AD operators
• Emergency and nonemergency responders
o Fire department
o Poison control
o Law enforcement
o Hospital
• Electric and gas utilities
• Contractors
o Electrical
o Excavation
o Mechanical
• State health and safety officials
Contact information should identify the appropriate after-hours emergency contact
information as well. The contact list should be posted in multiple locations throughout the AD
facility and farm so that in the event of an emergency, there is quick and easy access to this
information. It is important that the contact list be updated routinely to make sure all
information is current.
14

Safety Practices for On -Farm Anaerobic Digestion Systems
In many rural locations, calling 911 may not be the best method for reaching emergency
responders. On an annual basis, the AD operator or owner should host a site tour with the local
fire, ambulance, and sheriff departments. The purpose of this tour would be to familiarize
emergency responders with the site and system, as well as identify the most direct contact
method in the event of an emergency.
3.1.3 Site map
The EAP should include a detailed site map that identifies and labels relevant structures and
major equipment (e.g., flare, gen set, boiler) at the AD facility, as well as the location of
emergency equipment. It should also clearly identify the locations of biogas supply shutoff
valves and the primary electrical disconnect and control panel.
3.1.4 State and local health and safety requirements
The EAP should include the federal and state health and safety regulations for the facility, as
well as all OSHA documents, guidelines, and certifications, including confined space entry
training documents. In addition, MSDS for non -farm feedstock and any chemical or biological
additives should be included in the EAP and posted at the facility so that employees can have
quick access to the information.
3.1.5 Equipment vendor manuals
The EAP should include the vendor manuals for all equipment at the AD facility. These materials
should be well organized so that in the case of a mechanical failure, an operator can locate and
reference a specific vendor manual quickly and easily.
3.2 SAFETY AND EMERGENCY EQUIPMENT
The following sections list recommended supplies and equipment an AD facility should have
available for normal daily operation or in the event of an emergency. The list is divided into
supplies and equipment to be maintained on site, so employees can access it within minutes,
and equipment that should be locally available and could be delivered to the site within a few
hours. A logbook of equipment inspections and expiration dates and the equipment manuals
should be located with the safety equipment.
3.2.1 Anaerobic digester facility (onsite)
• Personal protective equipment
o Gloves
o Safety glasses
15

Safety Practices for On -Farm Anaerobic Digestion Systems
o Hearing protection
o SCBA (provided employees are properly trained and fitted for using the
equipment).
• First aid kit
• Fire extinguishers (ABC)
• Explosion -proof instruments (e.g., flashlight, ventilation blower, hand tools)
• Rigging equipment for rescue of a person
o Hoist, winch, or pulley
o Safety harness
• Multi -gas detector with extension hose
• Ring buoy
• Shovel
3.2.2 Locally (able to be onsite within a few hours)
• Excavation equipment (e.g., bull dozer, backhoe, excavator)
• SCBA and trained individual
3.2.3 Baseline environmental conditions
During startup and for the first 6 to 12 months of use, operators should collect operational
parameters and air quality measurements around the AD facility on a weekly basis to establish
baseline/normal operating conditions. Basic operational parameters should include pressure
and temperature readings on pipelines where gauges are installed. Using a handheld multi -gas
meter, employees should check the air quality inside all structures or rooms, along with the
conditions in below -grade pump chambers, near the base of digester tanks, and along biogas
pipelines. At a minimum, the concentration levels of hydrogen sulfide, carbon monoxide, and
methane should be measured and recorded. By establishing baseline operating conditions, the
AD operator has a point of reference for troubleshooting operational problems and
determining when hazardous conditions are developing or already exist.
16

Safety Practices for On -Farm Anaerobic Digestion Systems
3.3 ELECTRICAL
The following section provides common practices to help maintain safety by reducing the
potential for electrical hazards that may occur at an AD facility.
3.3.1 Daily inspections
The AD facility should instruct operators to perform
daily inspections of the electrical system. This
inspection should include, but not be limited to, the
following:
• Conduit connections to panels
• Panel cover integrity
• Conduit integrity
• Exposed and damaged wires
• Corrosion of wires
• Signs of electrical overheating
If there is any sign of the aforementioned problems,
operators should contact the site manager or a
licensed electrician to resolve the issue. Figure 18
shows a corroded electrical control panel that an
Figure 18: Corrosion on an electrical
control panel
operator should identify for repair during daily inspections. The operator should not attempt to
fix the problem unless he or she is the appointed licensed electrician for the facility.
3.3.2 Switches, controllers, fuses, and breaker panels
Electrical panels should not be obstructed by any object that would impede the accessibility of
the panel itself. For example, temporarily placing a 55-gallon drum below a circuit breaker or
installing a pump below a control panel would impede accessibility. Moreover, electrical panels
should always be visible so that emergency responders can locate them easily. This becomes
imperative when an electrician unfamiliar with the facility needs to turn off the power quickly
in an emergency situation.
All electrical panels should be well labeled and include an accurate, up-to-date copy of the
wiring diagram (Wallenwine, 2011). Additional copies of the wiring diagram should be
maintained off site and digitally in the event that a copy is lost, damaged, or destroyed. The
facility should check the local electrical code to determine the clearance required around the
electrical panel.
17

Safety Practices for On -Farm Anaerobic Digestion Systems
3.3.3 Roles of operators
An operator inspects and observes any defective electrical problems but does not perform any
electrical maintenance. A licensed electrical engineer appointed by the AD facility is responsible
for maintenance and repair of electrical problems.
3.3.4 Visitors on site
Unattended facilities associated with the AD system should be locked to limit risk to individuals
unfamiliar with the surroundings and to ensure that the system continues to operate efficiently.
Employees familiar with the AD system should escort visitors at all times. Visitors to an AD
facility are not to operate any switches, controllers, or other electrical functions, including light
switches.
3.4 PERSONAL PROTECTIVE EQUIPMENT
Personnel at an AD facility should be provided with proper -fitting personal protective
equipment (PPE). The employer is responsible for communicating and educating the employees
on the proper use of PPE (OSHA, 20076). At a minimum, OSHA recommends protective gloves,
splash -proof goggles, hearing protection, and steel toe shoes for employees associated with the
digester system. For visitors to the facility, safety glasses and hearing protection should be
available and worn while on site.
3.5 ACCIDENT PREVENTION SIGNS AND TAGS
Accident prevention signs and tags should be visible at all times when work is being performed
where a hazard may be present and should be removed or covered promptly when the hazards
no longer exist. Also, caution signs should be designed to be understood by non-English
speakers. The EAP should include resources documenting where proper signs or tags can be
obtained for potential facility hazards. A variety of OSHA -approved accident prevention signs
are shown in Figure 19.
Figure 19: OSHA accident prevention signs
i
,
•
1
AUTHORIZED
RHCH POINT
KEEP HANDS
SMOKING
EYE PROTECTION
REQUIRED
aUI=
CLEAR
NONO
OP N FLAMES
PERSONNEL ONLY
PERSONNEL ONLY
NO SPARKS
18

Safety Practices for On -Farm Anaerobic Digestion Systems
3.6 PERSONNEL TRAINING REQUIREMENTS
Annually, the facility should review the EAP with all employees associated with the AD system
and new hires should go through safety and system operation training before being permitted
to work at the AD facility. In addition, owners of systems should be aware of OSHA
requirements and comply with employee training requirements.
4.0 CONCLUSION
Anaerobic digestion provides a real opportunity to address farm -related environmental
concerns, generate renewable energy, and diversify farm products. It is important to realize,
however, that AD systems pose unique challenges and safety risks not experienced on typical
farms. These risks can be mitigated by practical measures, including educating employees about
the risks associated with the system, implementing strict safety procedures, and having a
detailed and up to date EAP that employees are familiar with. Ensuring a safe environment
around the AD facility will protect employees and visitors while enhancing the overall
performance of the digester.
19

Safety Practices for On -Farm Anaerobic Digestion Systems
5.0 REFERENCES
American Petroleum Institute (API). 2008. "Fall Protection for Above Ground Storage
Tanks".
http://www.api.org/ehs/health/safetank/Ioader.cfm?urI=/commonspot/security/getfile.cf
m&amp;Pagel D=31330. Date accessed: May 19, 2011.
2. Brown, Nellie. 2007. Conducting a Safety Walk-through on a Farm: Hazards of the Manure
Handling System, Anaerobic Digester, and Biogas Handling System (A Self -Assessment
Guideline for Farmers). Cornell University. Manuals and Users Guides. Paper 13.
http://digitalcommons.ilr.cornell.edu/cgi/viewcontent.cgi?article=1012&context=manuals
. Date accessed: May 10th, 2011.
3. Center for Disease Control and Prevention. 1995. "Documentation for Immediately
Dangerous To Life or Health Concentrations (IDLHs), Chemical Listing and Documentation
of Revised IDLH Values." http://www.cdc.gov/niosh/idIh/intrid14.htm1. Date accessed:
May 16, 2011.
4. Fenton, Mike. Email correspondence. Michigan Caterpillar Power Systems. May 18, 2011.
5. Gould, C. and M. Crook. 2010. "Michigan On -farm Anaerobic Digester Operator
Handbook." Michigan State University Extension. Pages 75-77.
6. Lawrence Berkeley National Laboratory. 2008. "Chemical Toxicology Overview."
http://www.lbl.gov/ehs/chsp/html/toxicology.shtml. Date accessed: May 16, 2011.
7. Linde Gas LLC. "Methane, Compressed Material Safety Data Sheet." Date accessed: May
12, 2011. http://www.orcbs.msu.edu/msds/linde_msds/pdf/040.pdf
8. Michigan Department of Energy, Labor and Economic Growth (MEDLEG). 2010. MIOSHA
Inspection #308878636: General Industry Safety and Health Division Yankee Springs Dairy
Inc. (Double Fatalities 7/12/10).
9. Michigan State University Extension. Emergency Action Planning for Michigan For -Hire
Manure Applicators.
10. National Electric Code (NEC). 2005. National Electric Code Handbook.
11. National Fire Protection Association (NFPA). 2009. Fire Safety Analysis Manual for LP -Gas
Storage Facilities. Based on the 2008 Edition of NFPA 58 Liquefied Petroleum Gas Code
12. Occupational Safety and Health Administration (OSHA). 2008A. "Fall Protection."
http://www.osha.gov/SLTC/fallprotection/index.html.
13. Occupational Safety and Health Administration (OSHA). 2008B. "Occupational Noise
Exposure." Standard 1910.95.
http://www.osha.gov/pIs/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id
=9735.
20

Safety Practices for On -Farm Anaerobic Digestion Systems
14. Occupational Safety and Health Administration (OSHA). 2008C. "Respiratory Protection".
Standard 1910.134.
http://www.osha.gov/pIs/oshaweb/owadisp.show document?p table=STANDARDS&p id
=12716.
15. Occupational Safety and Health Administration (OSHA). 2007A. "Control of Hazardous
Energy." Standard 1910.147.
http://www.osha.gov/SLTC/controlhazardousenergy/index.html.
16. Occupational Safety and Health Administration (OSHA). 2007B. "Personal Protective
Equipment." Standard 1910.132.
http://www.osha.gov/pIs/oshaweb/owadisp.show document?p table=STANDARDS&p id
=9777.
17. Occupational Safety and Health Administration (OSHA). 2002. "Accident Prevention Signs
and Tags." Standard 1926.200.
http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_id=10681&p_table=STA
N DARDS.
18. Occupational Safety and Health Administration (OSHA). 1998. "Permit -Required Confined
Spaces." Standard 1910.146.
http://www.osha.gov/pIs/oshaweb/owadisp.show document?p table=STANDARDS&p id
=9797.
19. Wallenwine, Steve. Personal correspondence. Consumers Energy. May 20, 2011.
21

EPA United States
Environmental Protection
Agency
Office of Air and Radiation, Mail Code 6207J
www.epa.gov
EPA-xxx-x-xx-xxx
December 2011

I STATE OF NORTH CAROLINA FIRM PANEL LOCATOR DIAGRAM
77°59' 00"
JOINS PANEL 3402
77°58' 00"
77*57' 00"
LEGEND
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DATUM INFORMATION
The projection used in the preparation of this map was the North Carolina
State Plane (FIPSZONE 3200). The horizontal datum was the North American
Datum of 1983, GRS80 ellipsoid. Differences in datum, ellipsoid, projection, or
Universal Transverse Mercator zones used in the production of FIRMS for adjacent
jurisdictions may result in slight positional differences in map features across
jurisdictional boundaries. These differences do not affect the accuracy of this
FIRM. All coordinates on this map are in U.S. Survey Feet, where
1 U.S. Survey Foot = 1200/3937 Meters.
Flood elevations on this map are referenced to the North American Vertical
Datum of 1988 (NAVD 88). These flood elevations must be compared to structure
and ground elevations referenced to the same vertical datum. An average
offset between NAVD 88 and the National Geodetic Vertical Datum of 1929
(NGVD 29) has been computed for each North Carolina county. This offset was
then applied to the NGVD 29 flood elevations that were not revised during the
creation of this statewide format FIRM. The offsets for each county shown on
this FIRM panel are shown in the vertical datum offset table below. Where a
county boundary and a flooding source with unrevised NGVD 29 flood elevations
are coincident, an individual offset has been calculated and applied during the
creation of this statewide format FIRM. See Section 6.1 of the accompanying
Flood Insurance Study report to obtain further information on the conversion
of elevations between NAVD 88 and NGVD 29. To obtain current elevation,
description, and/or location information for bench marks shown on this map,
please contact the North Carolina Geodetic Survey at the address shown below.
You may also contact the Information Services Branch of the National Geodetic
Survey at [phone], or visit its website at.www.nqs.noaa.go .
North Carolina Geodetic Survey County Average Vertical Datum Offset Table
121 West Jones Street County Vertical Datum Offset (ft)
Raleigh, NC 27601 Duplin - 0.94
[phone]
www.nccis.state.nc.us
I Example: NAVD 88 = NGVD 29 + (-0.94) I
All streams listed in the Flood Hazard Data Table below were studied by
detailed methods using field survey. Other flood hazard data shown on this
map may have been derived using either a coastal analysis or limited detailed
riverine analysis. More information on the flooding sources studied by these
analyses is contained in the Flood Insurance Study report.
2 300 000 FEET
226 000 M
420 000 FEET
3866 000 M
4
34° 53' 0
3864 000 M
C
Maxwell Crec
ZONE X
34' 52' 0
3862 000 M
405 000 FEE
34° 5 1' 0
3860 000 M
400 000 FEE
2 30(
77
76
ZONE X
V
"- LVIYt At '
..a
_ 165
* r L•
HAMILTON RD ��`+
#'• Cl!
4 b
. cga4
13,
^ 130
126 CRFE�CS/pf pR O
ro
OAK NILL CT 1
1
9 111 �b
106
- Elder Branch o97
J •• r
D
4 490 •�
- 6a 479 ZONE -
396
a
473
Maxwell Creek 401 y
{ ZO E AE
66
(0 71f
063
074
•'' '• 'L U � •n�o�rpo� a�'ed Areas
63
9,12 ONE
62
MIN
61 - ..A 1 • `.�
60� ZONE X.
4��
T )
EjQ'er &
$hey
I �r ZONE AE
•,}� \ � 7 .347.����r
rn
W 3
390 358 11 312
410
� 364
L 386
w -
2 320 000 FEET
ZONE X 77°56' 00"
232 000 M
n42U 000 FEET
• �� 9Q ZONE A/E.,r 6�
Creek
422
416
a ZONE X
x
V
Z iJ
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O
0
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4
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3,
- 0,6 '_
- 1
c
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O �
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0
ll
3,
\\/ 246
257
232
268
56 ZONE AE
ZONE X
42, 4,5 t � � SON • • •_.._ ' - - - _ - - -} • _ -
J h
SOLON a
CARROLL LN r
I •._ ,
31
ram_
. f
_ PROPOSED
DIGESTER SITE
� .. 4.
C►J�'e¢ r RO.B€RT PER ' ..J.� • -
AM-M
15 000 FEET
1°53' 00"
3864 000 M
1° 52' 00"
3862 000 M
I°51' 00"
3860 000 M
)0 000 FEET
FEET
78°00' 00" 7759' 00" 77158' 00,, 77°57' 00,,
JOINS PANEL 3308
NOTES TO USERS
This map is for use in administering the National Flood Insurance Program. It does not Certain areas not in Special Flood Hazard Areas may be protected by flood control This map reflects more detailed and up-to-date stream channel configurations than MAP REPOSITORY
necessarily identify all areas subject to flooding, particularly from local drainage sources structures. Refer to Section 4.4 "Flood Protection Measures" of the Flood Insurance those shown on the previous FIRM for this jurisdiction. The floodplains and floodways Refer to listing of Map Repositories on Map Index or visit vwvw.ncfloodmaps.com.
�YAIx1 of small size. The community map repository should be consulted for possible Study report for information on flood control structures in this jurisdiction. that were transferred from the previous FIRM may have been adjusted to conform to
�•� T updated or additional flood hazard information. these new stream channel configurations. As a result, the Flood Profiles and Floodway
b'
0
Base map information and geospatial data used to develop this FIRM were obtained from Data tables in the Flood Insurance Study report (which contains authoritative hydraulic EFFECTIVE DATE OF FLOOD INSURANCE RATE MAP PANEL
To obtain more detailed information in areas where Base Flood Elevations (BFEs) various organizations, including the g g participating local community(ies), state and federal data) may reflect stream channel distances that differ from what is shown on this map. FEBRUARY 16, 2oos
and/or floodways have been determined, users are encouraged to consult the Flood
FEh1A'SCOOPER4TING TECHIVIC,vL'.4RTr�lER ��. �� agencies, and/or other sources. The primary basis for this FIRM is aerial imagery acquired by
�•„,�Y` LgyD Sic Profiles, Floodway Data, Limited Detailed Flood Hazard Data, and/or Summary of Stillwater Duplin County. The time period of collection for the imagery is 1999. Information and Please refer to the separately printed Map Index for an overview map of the county
Elevations tables contained within the Flood Insurance Study (FIS) report that accompanies geospatial data supplied by the local community(ies) that met FEMA base map specifications showing the layout of map panels, community map repository addresses, and a Listing of EFFECTIVE DATE(5) OF REVISION(S) TO THIS PANEL
this FIRM. Users should be aware that BFEs shown the FIRM represent rounded were considered the preferred source for development of the base map. See geospatial Communities table containing National Flood Insurance Program dates for each community
This digital Flood Insurance Rate Map (FIRM) was produced through a unique only and
d should not be used as the sole source of flood elevation information. Accordingly,
wholeelevations. These BFEs are intended for flood insurance rating purposes metadata for the associated digital FIRM for additional information about base map as well as a listing of the panels on which each community is located.
cooperative partnership between the State of North Carolina and the Federal flood elevation data presented in the FIS report should be utilized in conjunction with preparation.
Emergency Management Agency (FEMA). The State of North Carolina has the FIRM for purposes of construction and/or floodplain management. If you have questions about this map, or questions concerning the National Flood
implemented a long term approach of floodplain management to decrease Base map features shown on this map, such as corporate limits, are based on the Insurance Program in general, please call 1-877-FEMA MAP (1-877-336-2627) or visit the
the costs associated with flooding.This is demonstrated b the State's com- Boundaries of regulatory floodways shown on the FIRM for flooding sources studied most up-to-date data available at the time of publication. Changes in the corporate FEMA website at www.fema.gov. For community ma revision history prior to statewide mapping,refer to the Community Ma
Y tY P ry P tY p
limits may have occurred since his ma was published- Ma users should
b detailed methods were computed at cross sections and interpolated between cross
t t
mitment to map floodplain areas at the local level. As a part of this effort, the Y P p y p p p History table located in the Flood Insurance Study report for this jurisdiction.
State of North Carolina has joined in a Cooperating Technical State agreement sections. The floodways were based on hydraulic considerations with regard to requirements consult the appropriate community official or website to verify current conditions of An accompanying Flood Insurance Study report, Letter of Map Revision (LOMR) or Letter
jurisdictional boundaries and base ma features. This ma may contain roads that were of Ma Amendment LOMA revising onions of this panel, and digital versions of this
To determine if flood insurance is available in this community, contact our insurance agent, the
with FEMA to produce and maintain this digital FIRM. of the National Flood Insurance Program. Floodway widths and other pertinent floodway 1 p P Y P ( ) 9 P P 9 tY Y
data for flooding sources studied by detailed methods as well as non -encroachment widths not considered in the hydraulic analysis of streams where no new hydraulic model was FIRM may be available. Visit the North Carolina Floodplain Mapping Program website North Carolina Division of Emergency Management or the National Flood Insurance Program at the
for flooding sources studied by limited detailed methods are provided in the FIS report created during the production of this statewide format FIRM. at www.ncfloodmaps.com, or contact the FEMA Map Service Center at 1-800-358-9616 following phone numbers or websites:
VVWW.nefloodmaps.eom for this jurisdiction. The FIS report also provides instructions for determining a floodway for information on all related products associated with this FIRM. The FEMA Map Service NC Division of Emergency Management National Flood Insurance Program
using non -encroachment widths for flooding sources studied by limited detailed methods. Center may also be reached by Fax at 1-800-358-9620 and its website at www.msc.fema.gov. [phone] www.nccrimecontrol.org/nfip 1 800 638 6620 www.fema.gov/nfip
Ny •�y t
r •: o �
000 FEET 226 000 M
_SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO
INUNDATION BY THE 10, ANNUAL CHANCE FLOOD
The 1 % annual chance flood (100-year flood), also known as the base flood, is the flood
that has a 1 % chance of being equaled or exceeded in any given year_ The Special
Flood Hazard Area is the area subject to flooding by the 1 % annual chance flood. Areas
of Special Flood Hazard include Zones A, AE, AH, AO, AR, A99, V, and VE. The Base
Flood Elevation is the water surface elevation of the 1% annual chance flood.
ZONE A No Base Flood Elevations determined.
ZONE AE Base Flood Elevations determined.
ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood
Elevations determined.
ZONE AO Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain);
average depths determined. For areas of alluvial fan flooding, velocities
also determined.
ZONE AR Special Flood Hazard Area formerly protected from the 1% annual
chance flood by a flood control system that was subsequently
decertified. Zone AR indicates that the former flood control system is
being restored to provide protection from the 1% annual chance or
greater flood.
ZONE A99 Area to be protected from 1 % annual chance flood by a Federal
flood protection system under construction; no Base Flood Elevations
determined.
ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevations
determined.
® FLOODWAY AREAS IN ZONE AE
The floodway is the channel of a stream plus any adjacent floodplain areas that must be
kept free of encroachment so that the 1% annual chance flood can be carried without
substantial increases in flood heights.
OTHER FLOOD AREAS
ZONE X Areas of 0.2% annual chance flood; areas of 1 % annual chance flood
with average depths of less than 1 foot or with drainage areas less than
1 square mile; and areas protected by levees from 1 % annual chance
flood.
OTHER AREAS
ZONE X Areas determined to be outside the 0.2 % annual chance floodplain.
ZONE D Areas in which flood hazards are undetermined, but possible.
COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS
\\ \ OTHERWISE PROTECTED AREAS (OPAs)
CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas.
1% annual chance floodplain boundary
0.2 % annual chance floodplain boundary
Floodway boundary
- - Zone D Boundary
•••••••••••••••••••• CBRS and OPA boundary
Boundary dividing Special Flood Hazard Area Zones and
44 boundary dividing Special Flood Hazard Areas of different
Base Flood Elevations, flood depths or flood velocities.
513 Base Flood Elevation line and value; elevation in feet*
(EL 987) Base Flood Elevation value where uniform within zone;
elevation in feet*
*Referenced to the North American Vertical Datum of 1988
o,z Cross section line
23 - - - - - - 23 Transect line
97°07'30", 32°22'30" Geographic coordinates referenced to the North American
Datum of 1983 (NAD 83)
4276000M 2000-meter Universal Transverse Mercator grid ticks, zone 18
1 477 500 FEET 5000-foot grid values: North Carolina State Plane coordinate
system (FIPSZONE 3200, State Plane NAD 83 feet)
BM5510 North Carolina Geodetic Survey bench mark (see explanation
X in the Datum Information section of this FIRM panel).
BM5610 National Geodetic Survey bench mark (see explanation in
® the Datum Information section of this FIRM panel).
• M1.5 River Mile
lb -
GRID NORTH
MAP SCALE 1" = 1000' (1 : 12,000)
500 0 1000 2000
FEET
METERS
300 0 300 600
�
PANEL 3400J
FIRM
®
FLOOD INSURANCE RATE MAP
®
NORTH CAROLINA
0
m
PANEL 3400
(SEE LOCATOR DIAGRAM OR MAP INDEX FOR FIRM
PANEL LAYOUT)
CONTAINS:
COMMUNITY CID No. PANEL SUFFIX
DUPLIN COUNTY 370083 3400 J
O
r7T)
Notice to User: The Map Number shown below should be used
when placing map orders; the Community Number shown
above should be used on insurance applications for the subject
community.
EFFECTIVE DATE MAP NUMBER
FEBRUARY 16, 2006 3720340000J
�, �•�E �QART,yj
E
�1 T
Y�O
rL
n
i!I �
_ 1
State of North Carolina
Federal Emergency Management Agency

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
Margaret Stallings
Austin Farm 41 & 92
PO Box 144
Wallace, NC 28466
Dear Margaret Stallings:
NORTH CAROLINA
Environmental Quality
September 23, 2019
Subject: Certificate of Coverage No. AWS310672
Austin Farm A & #2
Swine Waste Collection, Treatment,
Storage and Application System
Duplin County
In accordance with your renewal request, we are hereby forwarding to you this Certificate of Coverage
(COC) issued to Margaret Stallings, authorizing the operation of the subject animal waste management
system in accordance with General Permit AWG100000. Please read this COC and the enclosed State
General Permit carefully.
This approval shall consist of the operation of this system including, but not limited to, the management
and land application of animal waste as specified in the facility's Certified Animal Waste Management Plan
(CAWMP) for Austin Farm #1 & 92, located in Duplin County, with a swine animal capacity of no greater
than the following annual averages:
Wean to Finish: Feeder to Finish: 7344 Boar/Stud:
Wean to Feeder: Farrow to Wean: Gilts:
Farrow to Finish: Farrow to Feeder: Other:
If this is a Farrow to Wean or Farrow to Feeder operation, there may be one boar for each 15 sows. Where
boars are unnecessary, they may be replaced by an equivalent number of sows. Any of the sows may be
replaced by gilts at a rate of 4 gilts for every 3 sows.
This COC shall be effective from October 1, 2019 until September 30, 2024 and shall hereby void
Certificate of Coverage Number AWS310672 that was previously issued to this facility. Pursuant to this
COC, you are authorized and required to operate the system in conformity with the conditions and
limitations as specified in the General Permit, the facility's CAWMP, and this COC. An adequate system
for collecting and maintaining the required monitoring data and operational information must be established
for this facility. Any increase in waste production greater than the certified design capacity or increase in
number of animals authorized by this COC (as provided above) will require a modification to the CAWMP
and this COC and must be completed prior to actual increase in either wastewater flow or number of animals.
You are encouraged to update your Swine Odor Control Checklist using the enclosed form. If you do so,
you must send a copy of the updated form to the Animal Feeding Operations Program at the address below.
Please pay careful attention to the record keeping and monitoring conditions in this permit. Stocking and
Mortality Form (STOCK-1) has been updated, all other record keeping forms are unchanged with this
General Permit. Please use the most current record keeping forms.
D E Q North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1636 Mail Service Center I Raleigh, North Carolina 27699-1636
NORTH CAROIINA ��
oevanmammema��ma auei� /'� 919.707.9000

If your Waste Utilization Plan (WUP) has been developed based on site -specific information, careful
evaluation of future samples is necessary. Should your records show that the current WUP is inaccurate
you will need to have a new WUP developed.
The issuance of this COC does not excuse the Permittee from the obligation to comply with all applicable
laws, rules, standards, and ordinances (local, state, and federal), nor does issuance of a COC to operate
under this permit convey any property rights in either real or personal property.
Per 15A NCAC 02T .1304 and NRCS standards a 100-foot separation shall be maintained between water
supply wells and any lagoon, storage pond, or any land application of waste.
Please be advised that any violation of the terms and conditions specified in this COC, the General Permit
or the CAWMP may result in the revocation of this COC, or penalties in accordance with NCGS 143-
215.6A through 143-215.6C including civil penalties, criminal penalties, and injunctive relief.
If any parts, requirements, or limitations contained in this COC are unacceptable, you have the right to
apply for an individual permit by contacting the Animal Feeding Operations Program for information on
this process. Unless such a request is made within 30 days, this COC shall be final and binding.
In accordance with Condition IL23 of the General Permit, waste application shall cease within twelve (12)
hours of the time that the National Weather Service issues a Hurricane Warning, Tropical Storm Warning,
or a Flood Watch/Flash Flood Watch associated with a tropical system for the county in which the facility
is located. You may find detailed watch/warning information for your county by calling the
Newport/Morehead City, NC National Weather Service office at [phone], or by visiting their
website at: www.weather.gov/mhx//mhx/
This facility is located in a county covered by our Wilmington Regional Office. The Regional Office staff
may be reached at 910-796-7215. If you need additional information concerning this COC or the General
Permit, please contact the Animal Feeding Operations Program staff at [phone].
Sincerely,
for Linda Culpepper
Director, Division of Water Resources
Enclosures (General Permit AWG100000)
cc: (Certificate of Coverage only for all ccs)
Wilmington Regional Office, Water Quality Regional Operations Section
Duplin County Health Department
Duplin County Soil and Water Conservation District
Central Files (Permit No. AWS310672)
Murphy -Brown LLC

Oct 31 14 03:04p Beth 9102855233 p.2
�a vet P� C Foe. 4As'� v�c.1Z,*7i� ,P Al 0�-M0 2/J/9/
Nutrient Management Plan For Animal 'Waste Utilization
10-24-2014
This plan has been prepared for:
Austin Farms 41 & 92
. fargaret "Pegg" Stallings
PO Box 144
Wallace. NC 28466
[phone]
Type of Plan: Nitrogen Only with
This plan has been developed by:
Ronnie G. Kennedy Jr.
Agriment Services, Inc.
PO Box 1096
Beulaville, NC 28518
25
Signature
nure Only
Owner/Manage.-r/Producer Agreement
I (we) understand and agree to the specifications and the operation and maintenance
procedures established in this nutrient management plan which includes an animal
waste utilization plan for the farm named above. I have read and understand the
Required Specifications concerning animal waste management that are included with
this plan.
Sig ure (cHner) Date
Signature (rianager or producer) Date
This plan meets the minimum standards and specifications of the U.S. Department of
Agriculture - Natural Resources Conservation Service or the standard of practices
adoF)ted by the Soil and Water Conservation Commission.
Plan Approved B,
Date
340528 Database Version 4.1 Date Printed: 10-24-2014 Cover Page 1

PRODUCER:
LOCATION:
TELEPHONE:
TYPE OPERATION:
NUMBER OF ANIMALS
(Design Capacity)
WASTE UTILIZATION PLAN
Austin Farms
PO Box 144
Wallace, NC 28466
[phone]
Feeder - Finish
7344
The waste from your animal facilitymust be land applied at a specified rate to prevent pollution
of surface and/or groundwater. The plant nutrientD-in tthe
animal
in the fields where tbhe waste is
e used to
reduce the amount of commercial fertilizer required frhecrops Waste
to be applied. This waste utilization plan uses nitrogen as the rlimiting nut lent.encoaged so tuldt all
analyzed before each application cycle. Annual soil tests re be
plant nutrients can be balanced for realistic yields of the crop grown.
mize
Several factors are important in implementing your waste t s utilization
i plan in order to an environmentally safe
a" the fertilizer value of the waste and to ensure that i applied
manner. Always apply waste based an the needs of the crap to be grown and the nutrient
content of the waste. Do not apply more nitrogen than the crop can utilize. Soil types are
important as they have different infiltration rates,hing wasteoshallanot be applied to lanls, cation d
capacities, and available water holding capacities. Normally
eroding at greater than 5 tons per acre per year. of apply spe`cNial, precautions, at� rated soils, when b t
applied to land eroding at up to 10 tons per year. Don
is raining, or when the surface is frozen. Either of these conditions
onditiWind on a o result
in r aloof be
to
surface waters which is not allowed under DEM regulations.
considered to avoid drift and downwind odor problems. To aximiiztethe
value
be of
nutrienttofor
crop production and to reduce the potential for pollution, mBriar to planting. Injecting the
growing crop or applied to bare ground not more than 30 days E
waste or disking will conserve nutrients and reduce odor problems.
nt
The estimated acres needed to apply the animal waste is based o waste typical nutrienalysst onereport from
for
this type of facility. Acreage requirements should be based
your waste management facility. Attached You willoind lab for analysis. ion on proper sampling
techniques, preparation, and transfer of waste sample
This waste utilization plan, if carried out, meets the requirements signor compliance with 15A NCAC
2H.0217 adopted by the Environmental Management
Page I

?Poll WASTE, UTILIZATION PLAN
m t
7,344 animals X 1-9 (tons) wastelanimallyear = 13,954 (tons) wastelyear.
Amount of Plant Available Nitrogen (PAN) Produced Per Year
lbs. PANlanimallyear = 16,891 lbs_ PAN/year. (PAN from N.C.
7,344 animals X 2-a Tech
Guide Std. 633)
Applying
an 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
The following acreage will be needed for waste application based on the crop to be grown and
surface application:
ACRES OWNED BY PRODUCER
Table 1:
Soil
Crop
Ip
Lbs. N Acres
Lbs. N Month of
Tract
Field*
Per Acre
Utilized Application
##
No.
Type
170 29.33
4986.1 March - Sept.
T71835
1
Ln
Bermuda(G)
Bermuda(G)
170 18.47
3139.9 March -Sept.
AlMk T71835
2
Ln
Bermuda(G
170 13.42
2281.4 March -Sept.
T71835
3
Ln
Bermuda G)
170 38.06
6470.2 March -Sept.
T71835
4
Ln
50 '10*
500 Sept -April
T71835
An
Ln
Small Grain
* rower must
seed at least
10 acres but may
seed all if desired
Total 99.28
17,377.60
*This N is from anima! waste only. !f nutrients from other sources such as commercial fertilizer are
tic yieLd-ax9kdffU9-M
applied, they must be accounted for.
meeting
he N
NOTE: The applicator is cautioned that P ��� Management Act may be over lwillerequirewhile
farmers in tsome
requirements. Beginning in 1996 the Coastal Zone
eastern counties of North Caroline to have a nutrient management plan that addresses all nutrients.
This plan only addresses Nitrogen.
Page 2

WASTE UTILIZATION PLAN
Table 2: ACRES WITH AGREEMENT OR LONG TERM LEASE
(Agreement with adjacent landowner must be attached)
(Required only if operator does not own adequate land [see
Required specification 21)
. --!I r_rr%r% Lbs. N Acres Lbs. N Month of
,*am
See footnote for Table 1.
Totals from above Tables
Acres
Lbs. N
Utilized
99.28 17,378
Table 1
Table 2 0.00
-
Total 99.28
17,378
Amount of N Produced
16,891
Surplus or Deficit
486
NOTE: 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 nutrient or other elements.
Page 3

WASTE UTILIZATION PLAN
See attached map showing the fields to be used for the utilization of waste water.
Application of Waste by Irrigation
_. r.- f..rnn Application Application
THIS 'TABLE IS NOT NEEDED IF WASTE IS NOT BEING APPLIED BY IRRIGATION, HOWEVER A SIMILAR TABLE
WILL BE NEEDED FOR DRY LITTER OR SLURRY.
Your facility is designed for M days of temporary storage and the temporary storage must
be removed on the average of once every ei MONTHS. In no instance should the volume of
waste being stored in your structure exceed Elevation n.
Call the local Natural Resources Conservation Service (formerly Soil Conservation Service) or Soil
and Water Conservation District office after you receive the waste analysis report for assistance in
determining the amount per acre to apply and the proper application rate prior to applying the
waste.
Narrative of operation:
Acres shown are 'wetted' acres for this facility. Grower may graze all land if desired. if cut for
flay exclusively, grower should use 200 lb. PAN rate.
Page 4

WASTE UTILIZATION PLAN
REQUIRED SPECIFICATIONS
1 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.
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 waste, he/she shall provide a copy 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 facility to
secure an update of the Waste Utilization Plan when there is a change in the operation,
increase in the number of animals, method of utilization, or available land.
3 Animal waste shall be applied to meet, but not exceed, the nitrogen needs for realistic crop
yields based on soil type, available moisture, historical data, climatic conditions, and level
of management, unless there are regulations that restrict the rate of application 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 that is eroding at 5 or more tons, but less than 10 tons per acre per
year providing grass filter strips are installed where runoff leaves the field. (See FOTG
Standard 393 - Filter Strip).
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 irrigation field.
When animal waste is to be applied on acres subject to flooding, it will be soil incorporated
on conventionally tilled cropland. When 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 or flies.
8 Animal waste shall not be applied to saturated soils, during rainfall events, or when the
surface is frozen.
Page 5

WASTE UTILIZATION PLAN
REQUIRED SPECIFICATIONS
(continued)
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 Waste nutrients 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 from any perennial stream or river (other than an irrigation ditch or canal. Animal
waste other than swine waste from facilities sited on or after October 1, 1995), shall not be
applied closer than 25 feet to perennial waters. (See Standard 393 - Filter Strips).
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 wetlands
provided they 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 courses 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.
Page 6

l- WASTE UTILIZATION PLAN
REQUIRED SPECIFICATIONS
(continued)
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
-,ON, 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 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
element. Zinc and copper levels in the soil shall be monitored and alternative crop sites
shall be used when these metal approach excessive levels. pH shall be adjusted for
optimum crop production and maintained. Soil and waste analysis records shall be kept
for five years. Poultry dry waste application records shall be maintained for three (3)
years. Waste application records for all other waste shall be maintained for five (5) years.
23
Dead animals will be disposed of in a manner that meets North Carolina regulations.
Page 7

WASTE UTILIZATION PLAN
WASTE 1TI ZAT1 N AGREE ENT
Name of Farm: Austin Farm
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 utilization plan for the
farm named above. 1 (we) know that any expansion to the existing design capacity of the
waste treatment and storage system or construction of new facilities will require a new
certification to be submitted to the Division of Environment Management (DEM) before the
new animals are stocked. 1 (we) also understand that there must be no discharge of
animal waste from this system to surface waters of the state from a storm event less
severe than the 25-year, 24-hour storm. The approved 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 DEM upon request.
Name of Facility Owner: Dewey Stallings
,^ (Please print)
Date:
Signature:
Name of Manager (if different from owner):
Signature:
Name of Technical Specialist: (Please print)
Affiliation: Murphy Family Farms
Address (Agency): P,O. Box 759
Rose Hiil, NC
Signature:
Date:
Kraig A. Westerbeek
Date: a I FI b )
Page 8

LEMNO
0 RISM
O�-
9
:' ! >,: �`+T:• ... \ A3 Ali ��
GRAPHIC SCALE
J tAsj
��MURPHYmmm-w- A USTIN FARMS
FARMS mmmmh--
SPRAY FIELD LOCATION

4
Iso,
fcof
J vio,
100,
I
q3
S. -�6
')IS3
A\
.45
114U 15 cc,
NO
Ila
1 'to .15
5 ,sS 3 i3 .4
Alut VAU,
NA
jv A
S
530'

q I A
GRAPHIC SCALE
o 200 400 ow
( IN FEET )

w

�I -
LAGOON
PAII C

ti
Cti

Sheet1
IRRIGATION SYSTEM DESIGN PARAMETERS
Landowner/Operator Name: Austin Farms
County: Duplin
Address: PO Box 144 Date: 2/8/01
Wallace, NC 28466
Telephone: [phone]
Table 1 - Field Specifications
Approximate
Maximum
Useable Size
Field of Field Crop(s)
,__--% Cnil Tvna RInne %
Maximum
Maximum Application
Application per Irrigation
Rate Cycle _

Sheet2
TABLE 2 - Travelling Irrigation Gun Settings
Make. Model and Type of Equipment:
3"
Field No.
Travel
Application
TRAVEL LANE
Wetted
Nozzle
Operating
Operating
Pressure
Arc
Speed
Rate
Effective
ctive
EffLen
Diameter
Diameteraches
reel
Pattern Comments
- Acres e
and
H drant No.
ftlmin
in/hr.
Width
tti ft
atGunure
at
95
220 3.36
F1,H1
2.39
0.56
150
850
300
1.18
50
95
180
2.36
F1,H2
3.99
0.69
100
870
300
1.18
1.18
50
95
330
4.61
F1,H3
1.99
0.41
200
870
300
1.18
95
330
5.03
F1,H4
1.99
0.41
200
960
300
1.18
50
95
330
4.19
F1,H5
1.99
0.41
240
630
300
1.18
95
330
5.17
F1,H6
1.99
0.41
200
970
300
1.18
•`�
95
220
0.70
F1,1-17
2.39
0.56
420
300
300
1.18
50
95
330
3.91
2.80
F1,H8
1.99
0.41
280
260
240
300
1.18
50
95
330
330
2.99
F2,H9
1.99
0.41
160
600
300
1.18
95
4.16
F2,H10
2.39
0.56
180
790
300
1.18
50
g5
330
6.08
F2,H11
1.99
0.41
260
790
300
1.18
50
95
330
5.35
F2,H12
1.99
0.41
255
850
300
1.18
95
330
5.57
F3,H13
1.99
0.41
210
1000
300
1.18
50
95
220
1.25
,H14
E�F3,1-115
2.39
0.56
260
120
300
1.18
50
95
330
1.25
1.99
0.41
210
150
300
1.18
95
220
4.53
F3,H16
2.39
0.56
260
530
300
1.18
50
95
330
3.93
F4,H17
1.99
0.41
220
530
300
1.18
50
95
330
3.93
F4,H18
1.99
0.41
220
530
300
1.18
50
95
330
3.93
F4,H19
1.99
0.41
220
530
300
118
.
50
95
330
3.93
F4,H2O
1.99
0.41
220
530
300
1.18
95
330
3.93.
F4,H21
1.99
0.41
220
530
300
1.18
50
95
330
3.32
F4,H22
1.99
0.41
220
410
300
1.18
50
95
330
3.52
F4,H23
1.99
0.41
0.41
220
450
300
1.18
50
95
330
_- 3.57
F4,H24
1.99
220
460
300
1.18
50
95
330
2.56
F4,H25
1.99
0.41
220
260
300
1.18
95
330
180
0.91
0.41
F4,H26
1.99
110
90
300
1.18
50
95
330
2•44
3.99
0.69
F4,H27
260
180
300
1.18
50
95
1 1.99
1 0.41
F2,H28

Sheet?
CALCULATIONS
rink) �ffications
Sprinkler Type: Nelson 150
Nozzle Size:
1.18 inches
Sprinkler Pressure:
50 psi
Flowrate(GPM):
205 gpm
Wetted Diameter:
300 feet
Lane Spacinga
Desired Spacing (%):
Design Spacing(feet):
70 %
210 "PVC irrigation pipe normally comes in 20' pieces,
so round to the nearest multiple of 20.
Actual Spacing (feet):
220 feet
Actual Spacing (%):
73 %
Application Rate
Application Rate =(96.3xFlowrate)/(3.1415x(.9xradius)squared)
Design App. Rate =
0.34 in/hr
300 degree arc =
0.41 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.) = 0.75 inches
300 degree arc = 1.99 ft/min
220 degree arc = 2.39 ft/min
180 degree arc = 3.99 ft/min
Mainline Velocity
Velocity = .408 x Flowrate / pipe diameter squared feet/sec.""
"For buried pipelines, velocity should be below 5 feet per second
Pipe size: inches
Velocity= #DIV/01 ft/sec.
Page 1

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:�r 1

IF-r-'or:DEWEY STALLINGS' / CaL_rnty: DUPLIN
ance to nearest residence (other than owner):
AVERAGE LIVE WEIGHT (ALW)
Date: 01/E5/95
1500.0 feet
a-F vi
0
sows
(farrow to
finish)
x 1417
lbs.
- 0
lbs
0
sows
(farrow to
feeder)
x 522
lbs.
= 0
lbs
3672
head
(finishing
only)
x 135
lbs.
- 495720
lbs
0
saws
(farrow to
wean)
x 43'3
lbs.
= 0
lbs
0
head
(wean to feeder)
x 30
lbs.
- 0
lbs
Describe other :
0
Total Average Live Weight = 495720 lbs
MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON
Volume = 4957;20 lbs. ALW x Treatment VolLrme (CF) /lb. ALW
Treatment Volume (CF) /lb. ALW = 1 CF/lb. ALW
Volume = 49572'0 cubic feet
STOF,rGE VOLUME FOR SLUDGE ACCUMULATION
Volume = 0.0 cl_cbic feet
TOTAL DESIGNED VOLUME
Inside top length (feet)--------------------- .3C0.01
Inside top width (feet)----------------------- 330.0
Top of dike elevation (feet)----------------- 9E.5
Bottom of lagoon elevation (feet')-------------- 86.5
Freeboard (feet)----------------------------- 1.0
Side slopes (inside lagoon)------------------ G.0. : 1
Total design volLLme wising prismoidal formula
SS/END1 SS/ENDL SS/SIDE1 SS/SIDE' LENGTH WIDTH DEPTH
3.0 .0 S.0 0 3E4.0 324.0 9.0
AREA OF TOP,
LENGTH * WIDTH
=
�- c 4. 0324.0
AREA OF BOTTOM
LENGTH * WIDTH =
270. 0 270.0
104976 (AREA OF TOP)
75900 (AREA OF BOTTOM)
AREA OF MIDSECTION
LENGTH * WIDTH * 4
297,0 297.0 358836 ( AREA OF MIDSECTION * 4 )
CU. FT. = [AREA TOP' A- (4*AREA MIDSECTIONd) + AREA BOTTOM] f DEP'TH/6
104976.0 352*836. 0 72900. 0 1 •
Total Designed Volume Available = 796068 CU. FT.

0
DRAINAGE AREA:
Lagoon (top of dike)
Length * Width =
330.0 330.0 108900.0 square feet
Buildings (roof and lot water)
0.0 square feet
TOTAL DA 108900.0 square feel:
Design temporary storage period to be
Volume of waste produced
Describe this area.
180, clays.
Feces &- urine production in gal. /day per, 135 lb. ALW 1.37
Jol�_sme 495720 lbs. ALW/13' lbs. ALW * 1.37 gai/o-y 180 days
A60h, Volume = 905515 gals. or 121058.2 cubic feet
volume of wash water,
This is the amount of fresh water used for washing flaar^s or' v01Z_Lme
of fresh water, used for a flL_Ish system. Flesh systems that recirculate
the lagoon water are accounted for in 5A.
volume = 0.0 gallons/day
Volume = 0.0 cubic feet
180 days str_-rage/7.48 gallons
per CF
Volume of rainfall in excess of evaporation
Use period of time when rainfall exceeds evaporation by largest amount.
180 days excess rainfall = 7.0 inches
Volume = 7.0 in * DA / 12 inches per foot
'Jolume = 63585.0 cubic feet

lame of 25
year — 24 hour
storm
Volume =
7.5 inches
/ 12 inches per foot * DA
Volume =
68062.5 cubic
feet
TOTAL REQUIRED TEMPORARY STORAGE
SA.
121058
cubic
feet
5H.
0
cubic
feet
15C.
63525
cubic
feet
5D.
6806.E
cubic
feet
TOTAL 252646 cubic feet
4i1'uI09-tr1
Temporary storage period====================)
180
days
Rainfall in excess of evaporation===========)
7.0
inches
25 year - 24 hour rainfall==================)
7.5
inches
Fr•eeboard===================================)
1.0
feet
Side slopes_________________________________)
3.0
: 1
Inside top length___________________________)
330.0
feet
Inside top width____________________________)
330.0
feet
Top of dike elevation=======================)
96.9
feet
Bottom of lagoon elevation==================)
86.9
feet
Total required volume============.===========)
748366
cu.
ft. �
Actual design volume========================)
796068
cu.
ft.
Seasonal high watertable elevation (SHWT)===)
93.k=
feet
Stop pumping elev.__________________________)
93.1
feet
Must be ) or = to the SHWT elev.==========)
93.0
feet
Must be ) or = to min. req. treatment el. =)
92.9
feet
.Required minimum treatment volume===========)
495722
cLt.
ft.
Volume at stop pumping elevation============)
517113
cu.
ft.
Start pumping elev._________________________)
95.1
feet
Must be at bottom of freeboard & 25 yr. rainfall
Actual volume less 25 yr.— 24 hr. rainfall==)
72800E
cu.
ft.
Volume at start pumping elevation===========)
713325
cu.
ft.
Required volume to be pumped================)
184583
cu.
ft.
Actual volume planned to be pumped==========)
196212
cu.
ft.
Min. thickness of soil liner when required==)
1.5
feet
DESIGNED BY: Zro. CX� APPROVED PY
DATE: 112- f/c/s DATE: vlj l pf q
VOTE: SEE ATTACHED WASTE UTILIZATION PLAN
COMMENTS:

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M I F E N D E R
4
50

LAGOON SITE SOILS INVESTIGATION
PROJECT: DaWgt SrHc��N�s 5� '``/
COUNTY: 17uPC /�
FIELD wESTIG nON BY: x(a1
if DATE:
SITE SKE
v©
DRING
EPTH
WT
BORING NUMBER AND PROFILE
CALF
Jv—
D — L
z
s ,
Z •
Z • 1�,.�re� ago /. s'- G, .� "
MltfA hN
�
/IM� -'
A." SAwo C )
- ZD
A-7
p+cr�Ro
'
fA'"po" L D S.4 NO ,� Q
iAr.,RNrin t0� !.
9/'J NA AD�+
uN,sc banr &,✓o
IA74rR c� AJIFT JW"0
X� ,vN,,,c ,., a J. t - 2 '
?ING/SAMPLING METHOD: PSIGNATURF: �% _�

srator:DEWEY STALLINGS County: DUALIN Date: 01/25/95
fince to nearest residence (other than owner): 1500.0 feet
AVERAGE LIVE WEIGHT (ALW)
0 sows (farrow to finish)
x 1417
lbs. =
0
lbs.
0 sows (farrow to feeder)
3672 head (finishing
x 522
lbs.
0
lbs
only)
0 sows (farrow to wean)
x 135
x 433
lbs. =
lbs. =
495720
lbs
0 head (wean to feeder)
x 30
lbs. =
0
0
lbs
lbs
Describe other :
0
Total
Average Live Weight =
495720
lbs
MINIMUM REQUIRED TREATMENT VOLUME
OF LAGOON
Volume = 495720 lbs. ALW x
Treatment Volume
(CF) /lb.
ALW
Treatment Volume(CF)/lb. ALW
=
1 CF/lb. ALW
Volume = 495720 cubic feet
STORAGE VOLUME FOR SLUDGE ACCUMULATION
Volume = 0.0 cubic feet
TOTAL DESIGNED VOLUME
Inside top length (feet)--------------------- 330.0
Inside top width (feet)---------------------- 330.0
Top of dike elevation (feet)----------------- 96,19
Bottom of lagoon elevation (feet)------------ 86,19
Freeboard (feet)----------------------------- 1.0
Side slopes (inside lagoon)------------------ 3.0
Total design volume using prismoidal formula
SS/END1 SS/END2 SS/SIDE1 SS/SIDE2 LENGTH WIDTH DEPTH
3.0 3.0 3.0 3.0 324.0 324.0 9.0
AREA OF TOP
LENGTH * WIDTH =
324.0 324.0 104976 (AREA OF TOP)
AREA OF BOTTOM
LENGTH * WIDTH =
270.0 270.0 72900 (AREA OF BOTTOM)
AREA OF MIDSECTION
LENGTH WIDTH * 4
297.0 297.0 352836 (AREA OF MIDSECTION * 4)
CU. FT. = LAREA TOP + (4*AREA MIDSECTIONJ) + AREA BOTTOM? * DEPTH/c
104976.0 352836.0 72900.0 1.5
Total Designed Volume Available = 796068 CU. FT.

EMPORARY STORAGE REQUIRED
DRAINAGE AREA:
Lagoon (top of dike)
Length * Width =
330.0 330.0 108900.0 square feet
Buildings (roof and lot water)
0.0 square feet
TOTAL DA 108900.0 square feet
Design temporary storage period to be
Volume of waste produced
Describe this area.
1801 days.
Feces & urine proauction in gal./day per 135 lb. ALW i.37
Volume = 495720 lbs. ALW/135 lbs. ALW * 1.37 gal/aa.y 180 days
Volume = 905515 gals. or 121058.2 cubic feet
olume of wash water
This is the amount of fresh water used for washing floors or, volume
of fresh water used for a flush system. Flush systems that recirculate
the lagoon water are accounted for in 5A.
Volume = 0.0 gallons/day * 180 days storage/7.48 gallons
per CF
Volume = 0.0 cubic feet
Volume of rainfall in excess of evaporation
use period of time when rainfall exceeds evaporation by largest amount.
180 days excess rainfall = 7.0 inches
Volume = 7.0 in * DA / 12 inches per foot
Volume = 63525.0 cubic feet

Volume of 25 year — 24 hour storm
Volume = 7.5 inches / 12 inches per foot * DA
Volume = 68062.5 cubic feet
TOTAL REQUIRED TEMPORARY STORAGE
5A.
121058
cubic
feet
5B.
0
cubic
feet
5C.
63525
cubic
feet
5D.
68063
cubic
feet
TOTAL 252646 cubic feet
SUMMARY
Temporary storage period====================>
180
days
Rainfall in excess of evaporation===========>
7.0
inches
25 year, — 24 hour rainfall===----===========>
----
7 .5
inches
Freeboard=============================------>
1.0
feet
Side slopes=================================>
3.0
1
Inside top length==============--------=====>
330.0
feet
Inside top width____________________________>
330.0
feet
Top of dike elevation=======================>
96.9
feet
Bottom of lagoon elevation==================>
86.9
feet
Total required vole_ime_______________________>
748366
cu. ft.
Actual design volume========================>
796068
cu. ft.
Seasonal high watertable elevation (SHWT)===>
93.0
feet
Stop pumping e l e v. __________________________>
93.1
feet
Must be > or = to the SHWT elev.==========>
93.0
feet
Must be > or = to min. req. treatment el.0
92.9
feet
Required minimum treatment volume===========>
495720
cu. ft.
Volume at stop pumping elevation============>
517113
cu. ft.
Start pumping elev.=______—___ ------------------>�
95.1
feet �
Must be at bottom of freeboard & 25 yr. rainfall
Actual volume less 25 yr.— 24 hr. rainfall==>
728006
cu. ft.
Volume at start Pumping elevation===========>
713325
cu. ft.
Required volume to be pumped================>
184583
cu. ft.
Actual volume planned to be pumped==========>
196212
cu. ft.
Min. thickness of soil liner when required==>
1.5
feet
DESIGNED BY:KAIZ 4 QQL APPROVED BY
DATE: 1 /2 1,115 DATE: W
NOTE: SEE ATTACHED WASTE UTILIZATION PLAN
COMMENTS:

OPERATION AND MAINTENANCE PLAN SHEET 1 OF E
-------------------------------
This lagoon is designed for waste treatment (permanent storage) and
180 days of temporary storage. The time required for the planned
luid level (permanent and temporary storage) to be reached may vary
due to site conditions, weather, flushing operations, and the amount
of fresh water added to the system.
The designed temporary storage consists of 180 days storage for:
(1) waste from animals and (2) excess rainfall after evaporation. Also
included is storage for the 25 year - 24 hour storm for the location.
The volume of waste generated from a given number of animals will be
fairly constant throughout the year and from year to year, but excess
rainfall will vary from year to year. The `S year rainfall will not
be a factor to consider in an annual pumping cycle, but this storage
volume must always be available.
A maximum elevation is determined in each design to begin
pumping and this is usually the outlet invert of pipe(s) from
building(s). If the ol_ttlet pipe is not installed at the elevation to
begin pumping, a permanent marker must be installed at this elevation
to indicate when pumping should begin. An elevation must be established
to stop pumping to maintain lagoon treatment depth.
Pumping can be started or stopped at any time between these two
elevations for operating convenience as site conditions permit, slich as
weat per, soils, crop, and equipment in order- to apply waste without
r^ljncff or leaching.
Land application of waste water is recognized as an acceptable
ethod of disposal. Methods of application include solid set,
renter pivot, guns, and traveling gun irrigation. Care sholild be
taken when applying waste to prevent damage to crops.
The Following items are to be carried alit:
1. It is strongly recommended that the treatment lagoon be pre -
charged to 1/2 its capacity to prevent excessive odors during
sta r^:-uP. Pre -charging reduces the concentration of the initial
wash entering the lagoon thereby reducing odors. Solids should be
covered with effluent at all times. When precharq_ing is complete,
flush buildings with recycled lagoon liquid. Fresh water should not
be used for flushing after initial filling.
2. The attached waste utilization plan shall be followed. This
plan recommends sampling and testing of waste (see attachment)
before land appl ic:at ior,.
3. Begin temporary storage pump -out of the lagoon when fluid level
rea---hes the elevation 95. 1 as marked by permanent marker. Stop plimp-
olst when the fluid level reaches elevation 93.1 . This temporary
storage, less 25 yr- 24 hr^ storm, contains 18458?. clibic feet or
1380682 gallons.

SHEET 2 OF 2
4. The recommended maximum amount to apply per irrigation is
one (1) inch and the recommended maximum application rate is 0.3
inch per hour. Refer to the waste utilization plan for further, details.
5. Keep vegetation on the embankment and areas adjacent to the
lagoon mowed annually. Vegetation should be fertilized as needed
to maintain a vigorous stand.
E. Repair any eroded areas or areas damaged by rodents and
establish in vegetation.
7. All surface runoff is to be diverted from the lagoon to stable
outlets.
8. Keep a minimum of 25 feet of grass vegetated buffer around
waste utilization fields adjacent to perennial streams. Waste will
not be applied in open ditches. Do not pIAmp within 200 feet of a
residence or within 100 feet of a well. Waste shall be applied in a
manner not to reach other property and public right—of—ways.
9. The Glean Water Act of 1977 prohibits the discharge of
pollutants into waters of the United States. The Department of
Environment, Health, and Natural Resources, Division of Environ—
mental Management, has the responsibility for enforcing this law.

SHEET 1 OF w
SPECIFICATIONS FOR CONSTRUCTION OF WASTE TREATMENT LAGOONS
----------------------------------------------------------
FOUNDATION PREPARATION:
-----------------------
The foundation foundation area of the lagoon embankment and building pad shall be
cleared of trees, logs, stumps, roots, brush, boulders, sod and rubbish.
Satisfactory disposition will be made of all debris. The topsoil from
the lagoon and pad area should be stripped and stockpiled for use on
the dike and pad areas. After stripping, the foundation area of the
lagoon embankment and building pad shall be thoroughly loosened prior
to placing the first lift of fill material to get a good bond.
EXCAVATION AND EARTHFILL PLACEMENT:.
-----------------------------------
The completed excavation and earthfill shall conform to the lines,
grades, and elevations shown on the plans. Earthfill material shall
be free of material such as sod, roots, frozen soil, stones over,
6 inches in diameter, and other objectionable material. To the extent
they are suitable, excavated materials can be used as fill. The fill
shall be brought LIP in approximately horizontal layers not to exceed G
inches in thickness when loose and pr-ior to compaction. Each layer
will be compacted by complete coverage with the hauling and spreading
equipment or' standard tamping roller or other equivalent method.
Compaction will be considered adequate when fill material is observed
to consolidate to the point that settlement is not readily detectible.
NOTE THE SPECIAL REQUIREMENTS FOR PLACEMENT OF LINERS IN THE LINER
:ECT:0N OF THIS SPECIFICATION. The embankment of the lagoon shall b_e
installed using the more impervious materials from the required
excavations. Construction of fill heights shall include 5 percent for
settlement. Dikes over 15 feet in height and with an impoundment
capacity of 10 acre—feet or more fall under- the .jurisdiction of the NC
Dam Safety Law. The height is defined as the difference in elevation
from ;he constructed height to the downstream toe of the dike.
Precautions shall be taken during construction to prevent excessive
erosion and sedimentation.
LINER: THE MINIMUM REQUIRED THICKNESS SHALL BE 1.5 ft.
---------------------------------------------
NOTE: LINERS (PARTIAL OR FULL) ARE REQUIRED WHEN THE ATTACHED SOILS
INVESTIGATION REPORT SO INDICATES OR WHEN UNSUITABLE MATERIAL_ IS
ENCOUNTERED DURING CONSTRUCTION. A TYPICAL CROSS SECTION OF THE LINER
IS INCLUDED IN THE DESIGN WHEN LINERS ARE REQUIRED BY THE SOILS REPORT.
When areas of unsuitable material are encountered, they will be over —
excavated below finish grade to the specified depth as measured
perpendicular to the finish grade. The foundation shall be backfil.l.ed
as specified to grade with a SCS approved material tie — CL,SC,CH).
REFER TO THE SOILS INVESTIGATION INFORMATION IN THE PLANS FOR SPECIAL
CONSIDERATIONS.

SHEET ` OF E
Soil liner, material shall come from an approved borrow area. The
minimum water content of the liner material shall be optimum moisture
content which r^elates to that moisture content when -the soil is kneaded
in the hand it will form a ball which does not readily separate. Water
shall be added to borrow as necessary to insure proper moisture content
during placement of the liner. The moisture content of the liner
material shall not be less than optimum water content during placement.
The maximum water content relates to the soil material being too wet
for efficient use of hauling equipment and proper compaction. Proper
compaction of the liner includes placement in 9 inch lifts and
compacted to at least 90 percent of the maximum ASTM DE98 Dry Unit
Weight of the liner material. When smooth or hard, the previous lift
shall be scarified and moistened as needed before placement of the next
lift.
The single most important factor affecting the overall compacted perme-
ability of a clay liner, other than the type of clay used for the
liner, is the efficient construction processing of the compacted liner,.
The sequence of equipment use and the routing of equipment in an estab-
lished pattern helps assure uniformity in the whole placement and
compaction process. For most clay soils, a tamping or sheepsfoot
roller is the preferable type of compaction equipment.
The soil liner shall be protected from the discharge of waste outlet
pipes. This can be done by using some type of energy dissipatorirocks,
or using flexible oi_tlets on waste pipes.
Alternatives to soil liners are synthetic liners and bentonite seala:it.
When these are specified, additional construction specificatio s arF�
ncluded with this Construction Specification.
CUTOFF TRENCH:
--------------
A cutoff trench shah be constructed under the embankment area whey,
srown on a typical cross section in the plans. The final depth of biiE
cutoff trench shall be determined by observation of the foundation
materials.
VEGETATION:
";ll exposed embankment and other bare constructed areas shall be seeded
to the planned type of vegetation as soon as possible after construc-
tion according to the seeding specifications. Topsoil should be placed
or, areas of the dike and pad to be seeded. Temporary seeding or mulch
shall be used if the recommended permanent vegetation is out of sea�;c)n
dates for seeding. Permanent vegetation should be established as s0071
as possible during the next period of approved seeding dates.
REMOVAL OF EXISTING 71LE DRAINS
-------------------------------
When tile drains are encountered, the tile will be removed to a minimum
.,f 10 feet beyond the olttside toe of slope of the dike. The tile
r•ench shall be backfilled and compacted with good material such as
SC, CL, or CH.

r%DEWEY STALLINGS Z County: DUPLIN
ince to nearest residence (other than owner):
Date: 01/25/95
1500.0 feet
AVERAGE LIVE WEIGHT
(ALW)
0
sows
(farrow to
finish)
x
1417
lbs. _
0
sows
(farrow to
feeder)
x
522
lbs. _
3672
head
(finishing
only)
x
135
lbs. _
0
sows
(farrow to
wean)
x
433
lbs. _
0
head
(wean to feeder)
x
30
lbs. _
Describe other
Total Average Live Weight =
MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON
0
lbs
0
lbs
495720
lbs
0
lbs
0
lbs
0
495720 lbs
Volume = 495720 lbs. ALW x Treatment Volume(CF)/lb. ALW
Treatment Volume(CF)/ib. ALW = 1 CF/lb. ALW
Volume = 495720 cubic feet
STORAGE VOLUME FOR SLUDGE ACCUMULATION
Volume = 0.0 cubic feet
TOTAL DESIGNED VOLUME
inside top length (feet) -------------------=— 330.0
Inside top width (feet)---------------------- 330.0
Top of dike elevation (feet)----------------- 98.7
Bottom of lagoon elevation (feet)------------ 88.7
Freeboard (feet)----------------------------- 1.0
Side slopes (inside lagoon)------------------ 3.0 : 1
Total design volume using prismoidal formula
SS/END1 SS/END2 SS/SIDE1 SS/SIDE2 LENGTH WIDTH
3.0 3.0 3.0 3.0 324.0 324.0
AREA OF TOP
LENGTH * WIDTH =
324.0 324.0
AREA OF BOTTOM
LENGTH * WIDTH =
270.0 270.0
104976 (AREA OF TOP)
72900 (AREA OF BOTTOM)
DEPTH
9.0
AREA OF MIDSECTION
LENGTH * WIDTH * 4
297.0 297.0 352836 (AREA OF MIDSECTION * 4)
CU. FT. = EAREA TOP + (4*AREA MIDSECTION) + AREA BOTTOM) * DEPTH/6
104976.0 352836.0 72900.0 1.5
Total Designed Volume Available = 796068 CU. FT.

RARY STORAGE REQUIRED
DRAINAGE AREA:
Lagoon (top of dike)
Length * Width =
330.0 330.0 108900.0 square feet
Buildings (roof and lot water)
0.0 square feet Describe this area.
TOTAL DA 108900.0 square feet
Design temporary storage period to be 180 days.
- �lzme of waste produced
Feces & urine production in gal./day per 135 lb. ALW 1.37
Volume = 495720 lbs. ALW/135 lbs. ALW * 1.37 gal/day 180 days
Volume = 905515 gals. or 121058.2 cubic feet
ja�luze of wash water
This is the amount of fresh water used for washing floors or volume
of fresh water used for a flush system. Flush systems that recirculate
the lagoon water are accounted for in 5A.
Volume = 0.0 gallons/day * 180 days storage/7.48 gallons
per GF
Volume = 0.0 cubic feet
volume of rainfall in excess of evaporation
Use period of time when rainfall exceeds evaporation by largest amount.
180 days excess rainfall = 7.0 inches
Volume = 7.0 in * DA / 12 inches per foot
Volume = 63525.0 cubic feet

�Qe Of ES year- -- L4 hour storm
volume = 7.5 inches / 1S inches per foot DA
Volume 6Sk6�.J cubic
_ _ feet
-
TOTAL REQUIRED TEMPORARY STORAGE
;A, 121058 cubic feet
5B. 0 cubic feet
63522, , cubic feet
5D. 68063 cubic feet
TOTAL ' 5"F,4c cubt feet
�J"_
iI IMMARY
--�
Tempor-al-y storage
iBO � days
7,0. inche_
Rainfall in excess of evaporation=====-_____
7.5
inches
5 year - 24 hour rainfall===_______________)
-__)
i. �
feet
reeboar-d-____�________________ ----
wide
7.0.e
feet
Inside top )
330.0
feet
inside top width=====_=_______--- _-
98.7
feet
Top of dike elevation_____________
88.7
feet
_-_-__=)
elevation=======-_
Bottom of lagoon
-------
7433.66
c". ft.
Total req�_tired vol�_�me=====__=__--____---_.
796k�6 J
cj_�. ft.
Actual design Vol
9�,.
feet
Seasonal high watertable elevation (SHWT)===>
94.9
feet
Stop pumping elev.==______________)
0
feet
Must be ) or' = t o the SHWT elev. ==========>
93.
94.7
feet_�-,
MUst be 1 or = to min. req. treatment el.=)
4557-20
cu. ft.
Required minimL_1m treatment volume===========�
517113
cl_i. ft.
Volume at stop pl_tmping elevation============>
96.9
feet
art pumping
M'Sst be at bottom of freeboard & 25 yr. rainfall
24 hr. rainfall==)
72251-4106
CLl. ft.
Actual vol,_Lme Tess 25 yr.-
7133E5
cu. ft.
Volume at start pumping elevation===========)
to be
184583
c1_t. ft.
Required voli_Lme pumped================)
to be p'AMped==========)
196c12
CI.L. ft.
Act+jal v011Ame planned
train. thickness of soil liner when required==)
1�.5
feet
��� APPROVED LY�+
CAE
r C, ���-.
DATE: /�Z�/�`f� DATE . VA
NOTE: SEE ATTACHED WASTE UTILIZATION FLAN
COMMENTS:

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50

LAGOON SITE SOILS INVESTIGATION
PROJECT: �E,,,cY Srft�.;-�rs&3 COUNTY:
FIELD INVESTIGATION BY: p(0 DATE:
BORING
DEPTH WT
SCALE v
s,
zo /- /3
BORING NUMBER.AND PROFILE
Tfvqwrjro rN
S�.
JW,rc %L,�• fA�+p /
SAT.
y 8
'r MA&
v,�ru� pQA.�c .jo
� fj.r ff-
pqf -Wee- Iado Q Ao
/d.,.. D.CA,+cf, Sari
BORING / SAMPLING METHOD:
SIGNATURE:

ator•DEWEY STALLINGS 2, County: DUPLIN
istance to nearest residence (other, than owl:er) :
AVERAGE LIVE WEIGHT" (ALW)
0 sows (farrow to finish)
0 sows (farrow to feeder)
3672 head (finishing only)
0 sows (farrow to wean)
0 head (wean to feeder)
Describe other
Date: 01/'25/95
1500.0 feet
1.417
lbs. -
_ 0
]. b s0
h
x 52'c_
lbs.
- _
495720
lbs
lbs
x 135
lbs.
=
0
lbs
x 433
lbs.
-
30
lbs.
= 0
lbs
x
Total Average Live Weig
t,t = 495720 lbs
MINIMUM REQUIRED TREATMENT VOLUME OF LAGOON
Volume = 495720 lbs. ALW x Treatment Voluie'(CF1/1b. ALW
Treatment Volume (CF) /lb. ALW = -'
Volume = 495720 cubic feet
3. STORAGE VOLUME FOR SLUDGE ACCUMULATION
volume = 0.0 cubic feet
rE TOTAL_ DESIGNED VOLUME
Inside top length (feet)-------- _____________
330.0
1330. 0
Inside top width (feet)-----------" _____
98.7
Top of dike elevation (feet)------------- -_-
88.7
Bottom of lagoon elevation (feet) ---------- --
1.0
Freeboard (feet) ------------------
3.0 : 1
Side slopes (inside lagoon) ----'--"---_---___--
Total design volume using prismoidal formula
SS/END1 SS/END2 SS/SIDE1 SS/SIDEc LENGTH
WIDTH DEPTH
324.0 9.0
3.0 3.0 3.0 3.0 324.0
AREA OF TOP
LENGTH * WIDTH =
324.0 324.0
AREA OF BOTTOM
LENGTH * WIDTH =
`70. 0 270. 0
10497E (AREA OF TOP)
72900 (AREA OF BOTTOM)
AREA OF MIDSECTION
LENGTH * WIDTH * 4 * 4)
`97.0 `97.0 35c�� 86 (AREA OF MIDSECTION
CU. FT. = [AREA TOP + (4*AREA MIDSECTION) + AREA BOTTOM] * DEPTH/6
104976.0 35�
�'836. 0
72900.0 j'
Total Designed Volume Available = 796068 CU. FT.

eMSEMPORARY STORAGE REQUIRED
DRAINAGE AREA:
Lagoon (top of dike)
Length * Width =
330.0 330.0 108900.0 square feet
Buildings (roof and lot water)
0.0 square feet
Describe this area.
TOTAL_ DA 108900.0 square feel;
Design temporary storage period to be
180 days.
5A.
Volume of waste produced
Feces R urine production in gal. /day per
135 lb. ALW 1.37
Volume = 495720 lbs. ALW/135 lbs. ALW *
1.37 gal/day 180 days
Volume = 905515 gals. or 121058.2 cubic
feet
_�.
Volume of wash water
This is the amount of fresh water used for
washing floors or volume
that recirculate
of fresh water used for a flush system.
Flush systems
the lagoon water are accounted for in 5A.
0.0 gallons/day *
9 y
.i80 days vtor agwi7.45 gallons
per CF
Volume = 0.0 cubic feet
5c.
Volume of rainfall in excess of evaporation
Use period of time when rainfall exceeds
evaporation by largest amount.
180 days excess rainfall =
7.0 inches
Volume = 7.0 in * DA / 12 inches per foot
Volume = E3525.0 cubic feet

�. Volume of 25 year - c4 hour- storm
Volume = 7.5 inches / 12 inches per, foot * DA
Volume = 68062'.5 cubic feet
TOTAL REQUIRED TEMPORARY STORAGE
5A.
121058
cubic
feet
5B.
0
cubic
feet
5C.
63525
cubic
feet
5D.
68063
cubic
feet
TOTAL 252646 cubic feet
. SUMMARY
Temporary storage period====================>
180
7.0
days
inches
tr
Rainfall in excess of evapo•r,ation==== ======>
7•
inc s
- 24 hour rainfall====__________
�
25 year
Side
Inside top t etigth===== __ _______ _ _______:_____�
?0. 0
`;,.:,0. 0
feet
feet
Inside top width=__________________ ___ __-
Top of dike elevation ======= ======= =======`===>
�8. 7
feet
feet
___}
Bottom of lagoon elevation_
74836C
cft.
Total required vole-tme======--__- _-_---- ---1
79CQ►C8
c+_t.
ft.
Actual design volume===================-------
93j�
feet
Seasonal high watertab.le elevation (SHWT)===>
94.9
feet
----------------------}
Stop pumping elev.=-==-----------
94.9
feet
---- _-_>
Must be > ;,r - to the GHWT elr��: __----_--
Must be } or = to min. r-eq. treatment el.=>
9-,+.7
495720
feet
c+_t.
ft.
Required minimum treatment vol+_tme=====____-=>
}
51711�
cu.
ft.
Volume at stop pumping elevation==__==_
96.9
feet
Start pumping elev.________________
be bottom of freeboard & 25 yr. rainfall
Must at
Actual volume less 25 yr. - E4 hr. rainfall==}
728006
cu.
ft.
ft.
Volume at start pumping elevation===========>
71.:325
cu.
ft. #
Required volume to be pumped================>
184583
cu.
Actual volume planned to be pumped==========>
196212
cu.
ft.
Min. thickness of soil liner, when required==}
1.5
feet
E&Z APPROVED BY 4 -GX--WA
7. DESIGNED BY: eo-4,1�
DATE: //Zi/ifs DATE: Thplo
NOTE: SEE ATTACHED WASTE UTILIZATION PLAN
COMMENTS:

! Z
EMERGENCY ACTION PLAN*
PHONE NUMBERS
DIVISION O; WATER QUALITY (DWO)
EMERGENCY NlANACEMN i SERVICES (EMS) © q6'3
SOIL AND Wr,Tc9 CONSE,9VATION DISTRICT (SWCD) r
NATURAL RESOURCES CONSERVATION E ���COOPERAIVE EXTERSiON SE -VICE (CES}cRVICE (NRCS) a
This plan will be implemented L!21 i :o�, �
overflowing p emented in he event that wastes from our Operation
g or running o„ site• you should not wait until wastere ch sur,'aceawnatters
or Leave you property to consider that
effort to ensure that this does not happen.You have a problem. You should make every
location for air employees at the faci::tThe_rnis ilowing are an should
ome action items in a accessible
take.
YOU should
i • Stop the release Of wales- Dependin a on the s,�ation, this may ore no
possible. Suggested responses to some possible problems are listed belwo,
may r be
A. Lagoon overlow-possible solutions are:
E.
C.
is
E.
b. =red soil to berm to increase elevation or dam.
cumP wastes t0 fle:ds at an acceptable rate.
C. ..pop all �,ows :o the lacoon it rnediate:y.
d. Call a pumcinc col-Mactor.
�. rya<a sur re s;.:,;ace water is enter:- laceon.
ta•asta -
acciication yield -actions inc-lude:
2. I.mr„ediateiv STOP vvcS-
" �e cplication.
b C,-eGt= a Ernporary diversion to contain was,
C. Incorporate waste to reduce rLmo <— . e.
C. -Val�•'a:e aid ei:m:rate r the reason (s) t; ;F-t Car -Ise the runo+".
� ra•uate the apciication rates for the rf7 --
..s where run occ:.�rad.
Leak -ace from the waste pipes and sprinklers -action include: .
a- Stop recycle pump.
b• Stop irrigation pur,-10.
c- Close valves to eliriirate further discharge.
d• Repair all teaks prior to restarting
p pumps.
Leakage from fIL'sh systerns, houses, solid separators -action include:
c'- Stop recycle pump.
b- Stop irrication pur„p.
C. Make sure siphon occurs.
d- Stop all flows in the house,
I ILSh sys ze.nns, or solid separ=►ors.
Leakage from base or sidevvall of la -coon.
to ,"lowing teaks -possible action:
O A ►en this is seepage as opposed
djg a s---,all sump or ditch from The embankment to catch all
see�a�e, put in a submersible
b. if ;;.,IA pump, and pu.-mp back to lagoon.
s are cP_�sej by burrowing animals, Trap or remove animals a
holes ai;d co•mpac, :vir-' a clay type soil. nd tilt
c- i"'E'ze 2 professional evaluate the condition of -the side walls and.lagoon-
bo t-:c. ; , as soon as possible.
1'

2. Assess the extent of the spill and note any obvious damages.
a. Did the waste reach any Surface +%raters?
b• %�rproximazely how much was released and for what duration?
C. ^
d. ry carnage notes, Such as employee injury, tish kilts, or propery damage?
Did the spill leave the property?
f. e. Does the spill have the potential to reach Sur, -ace waters?
Could a future rain event cause the spilt to reach surface wafers?
g. Are potable water wells in danger (either on or or the propery)?
h. f'ow much reached surface waters?
3. Conm-c appropriate agencies.
4.
S.
a. During normal business hours call your DWC regional office; phone -
hours, emergency number: c 1 S_ '� a After
name, , ccility number, telephone number,
the details on the inc dee call r ;r crude: your
above, the exact location of the facility, from Rem 2
the s-i i, weather and wind conditions he coor?ec� ermeasurzs directio �-, movement
been
uncer tc{en, and the seriousness of the sitution.
b. If spill Ieaves properly or enters surface water
c.- Ins: uct ;: S to contact local Helath Depar-tme�tcaii local I✓�S p;;ene number.
d. C^ ^-= - C=s
, phone nurnber - , local SWCD o ; : icy phony nu,„b=- -
N"C� c� �,�... for advice!tec;;nice! assistance o „ -. an local
Phone nurnber - -.
cf ;1e works above w s call c i i or the Sheri;i f, -r-
prc^Ie::, o uier,. arid ask DePar,'M= ,� ar,C �:�ia;n you
< I= Person to ccrtact zhe proper agencies fcr vcu.
s °`�cc::•cr^•cort;actor of your choice to begin repair or proble --
m to ,�:i,;.izs o,�-
a. Ca ,, : _. actors Name:
b. Cc..;: a=zorS Addres
c. C;,r.� =��ors Phone:
Car. =-- technical spec
Enci^ .ails who certified the racoon (MRCS, Cons;:;na
...
b.
7. Implar;,ent procedures as -advised by DWQ and reC:iT� �;;3 Cama � � te'C.^i.^I1CaI aSSlStanC° aCenC:eS t0
ge, repair the system, and reassess the waste manac^ant plan to
keep rrc�lerms with release of wastes fron happening again.
Z

', .
INSECT CONTROL CHECKLIST r0-
ANIMAL OPERATIONS
Sourer Cause
8&AP's .0 Minimize Odor
.
Sim Scec:ilc Prac:ices
(liquid Systems)
Flush Gut'ars Aaumulation of soGds
l nusn
aystom is 00mCnod and operated
sufficiont:y to remove accumulated
s Ids from g's;;ars as designed.
Rs-mccve bridging of accurnulatad sorids at
discharge
Lagoons and pits Crusted Sordr
( Maintain lagoons, ratting basins and
Pits whore post brooding is aPParant to
mirsimize the crusting of solids to a depth
of no more than 6-a inchas over more than
30% of surface.
?xcessivo vogetative Decaying vegetation
Growth
( Maintain vegetative control along banks of
lagoons and otn=r irr-=Oundmants to proven;
.
accurn-uladon of d0_sying vagatativa
aiong water's edge on imocundmart's
(Dry Sys:e.—.:st
_
'-oars i-aod Spillage
(l Gesi;r-. cae:a:e arc r..ain;ain feed
bunkerz end z.-O-7ns1 ,-- rrini.-ai._ vnt 'z— S• `_ ca
Y ^ --
Of decaying wastage.
(i Caen va sciiiage or, a rsudne basis (c.,, i-iC dry
"nod Storage
intarvai du ;nc su.-rmer; I :-30 day interval d is q wines;.
%tee=t:nu.atio
' ns of food residuas
( i Reduce rr-cis :'re ac
=rnuiaton wit .in ar
id er-L•x
ir_-tecia:s �erimnte: of feed s;srege arees:y
insuring d: ainace away': am rice antler =vi ::;
adogt:ate ccr.:airmar- (e.g., covered bin fc:
brewer's g: ain anc s.-iiar ; ig
•
; pis; ;e grain
proauc_:).
(l lnsaaC: for and ramov_ or break ua ae=r nulated
rime! Holding Arass
solids in filter st.:�� around feed storage as needed.
Ac:.,trrsu(apens of animal wastes
(l lrtminate low area ;Piet »
and food w°�°Q°
n-m
ao oirrs along fen,.-=
and otner locations wnere weza ae� :ttulater arid
and di. romance by erinZais is minimal.
l i Maintain fence rows and filter
strios around artin:
holding areas :o
aeeumulations of warns
Cr.e, inzoac: fcr and', rernOVn or break up ac_umtaatx'
solids as noeded).
•'en'bor 1t. t996

71
Dry Manure Handling Aommulacions of animal wastas () Romovo ill sp' ego on Systems o routine basis (e.g.7.10 day
into during - C sxr nxner, i 5.30 days intorvd during
wintor) whore marfure is loaded for land app;crdon
or dimposal.
() Provide for adeCuata drainage &round mamu, stoaj:; &s_
(} IeC; for and n undo . or break up ae d %axis:
in.filter stripes around stodcpi7os and n'.a m heads,,
areas as noedod_
The issues c�leciced () pertain to this open don. The Ian down errnt
inset: control measures as practical. gyrator agrees to Use sound jud„menr in -applying
l certify the of na-mentioned insect cantrol Ber Management- Practices have been reviewed with me.
igr:a:,:re}
For more information eorrac:fie Cooperative Erendon Sarvice, Depart -spent of Enrorr;04 , Box 7613,.Noert Carona Seto Univer.:.y, Raleigh. NC
27695-76i3.
AMIC—Novanvtem 11. 1296

47
SWINE FARM WA=c MANAC=MENr 7 ODO^n CONT ROL CHECKUST
Source Cause SMP's ;o Minimize Odor Ste SpecH-ic Ptac:ices
Farmstead Swine production ( vacoraavc or w0000d buffers;
(vr Roccmmoneed best management
�/�prae�cos;
(zGcad judo -non- and consmon sense
Animal body surfacars Dirty manure covemd ananals (.,{ Dri floors
F,00r surfaces Wet manuro-covared floors (%( a-od floors.
(7aterers located over slotted floors;
(�r�joeders at high and of solid floors;
( Scraoe manure buildup from floors;
(3 Undar loor vontilation for drying
Manure collecion pia Unna ( Frequent manure removal by flush,pit
rechargo.or scrape
Farml micorbial decomposition () Underfloor ventilation
Ventilation exSust=-. fans Volatiia gases, ( r n maintenance:
Dust (v) =ancient air r.,ovem..ent
c..
indoor surfaces Dust (,was: Gown between groups of animals
() Fez eddiCves;
() Peaces :ovc �:
(J F-ee deiivery r'awrszout ezz enders to
feeeer covers
tanks Ag-3Zon of recyaag lagoon () Fiucn tank covers
rre.:id wi ile^. tank: are `:Tin; () E.ard fill lines to near bottom of
tanks with ana-si=ncn verrs
=ush alleys Agitation curing wastewater () Unean'loor flus:z win _ �deriloor
eornreyananee ven-ia-on
? recharge peirtt:
A7^st9an of recycled lagoon
{) Ex,enC rec^ard lines ;o near Dot om of
liCr,:id wivle pits are MUng
pits with end-sicncn "rs-s
:i`; s aborts
Ag:r3tion during surr;i tarx `IGng
() Sup ;anK cover
and drawdown
:)utsida drain collea-don
Astation during wastewater
() Ux covers
:r junction bozos
comrvyanca
::Id of drainpipes at lagoon
Agitation during westawate:
() `Y.end d)scnarge point of pipes
undornoa;:t lagoon iicuid level
.moon surfaces
Volatile gal crrlizrions
ilalogical
( .roper IaCoon tic -.:id eacacity
m Wng
(r( Correct lagoon star•, procedures
AC"-acan
( )Mir�mum zur`ace area -to -volume ratio
/
(�T "rvmum aci:anion wnen cunping
() Mecmanical aeratiarn
(1 Proven Ciolocical oe:i�ves
..atron spnnklor no—eG Hign proare a;itauon ( r 'gate an cr,, der vnt, li ra or no wind
Yrnd drat, ( rimum recommenced eooraoon pressure
(rl Wr-o intaco near lagoon (ic.:id surface
I ) Pum= from seconG .:ago lagoon
ven:par 17, 7996

StoraCa tanit or 'Satin Perdal nuc.chial deca=ositian () somorn or nidlav-ei loading
surface !.Siring while filrinQ () Tank covers
At~taaon wnan emptying () S.an surfacer mats of solids
( ) Proven biological additives or oxidants
So Wing Cosin sur:aea Parael micobial decornposadon {) Extend drainpipe ovvets undarneerl liquid
Ne)dng whiie filling level
Agitation when emptying (j Remove served s:.olids regularly
Manure. slurry or sivago Agitation when spreading () Soil injeadon of slurry/sludges
spreader outlets Voloele gas emissions () Wash rasidual rnanuro from sproader attar use
( ) Proven biological addttives or o ddants
Uncovered manure. slurry Votaoie gas emissions white drying {) Soil infeadon of slurry/sludges
or studgo on field surfac s {) Soil inearporirdon within 48 hours
(} Sproad in thin useiform layers for rapid drying
(} Provers biological additives or oxdants
woad animals Car -..ass decomposition (} Proper disposition of car- as
Ocad animal disocsal Car. -ass oecoraoosition (} Complete cc —ring of carcasses in burial ;its
ci;s (} Proper locationicor=-action of disposal ;i=
Incinerators lnooataiets =n2ustcn (} Secondary st: eic burners
::ending wave., arctznd lr -:oCcr eainags ( Gr&c& and lancssoe sscri :~.at water trans
:aciii sex r`+fit::bial decompositien cf away `.rorn .`chides
o ,sru::tio::a:
ro trackcc ont= pub-iic Fncry rnoirtained cccsss macs Farm access road maintenance
from farm across
A:Ididonol lnfer-:sdcn: Avas'ab ie i'-., :
Twine Manure Maragerre, 122^= nuhar_M? Poeicst NCSU-wu.^,+Z=:naon Canter
Swina Production Farm ?aterdaI CdorSourcas and Remedies. MAS Fact Shoot N=_:AE
Swine Procuedon Fae::rCr Manure Managemen= Pit Ree:.arye-(,agoon Troam-nan.; ZZAE S s-ao h.:.a:/--B
Swine Produe--on Facliiirr IAarxrre Managarnan- Under. *cr ruse -Lagoon Ts roet:nor 2::5-33 N=:;_ : E
.s;oon QosiC and Mar.a;,cr::en-.for.UvestodcManure areacriont and Storage; EBABE iCS-c3 NCSU_&AE
:aiiorotion of Manure and WasCowater Ap.r7cadon c'.=; t>arcrt EBAE Fact Sheet NCS _SAE
:ant:olling Cdorr !rows Swine 8- ftgc: PIN -SS NCSL'-Swine mansion
vironmental A:.-uranc Pratpw. N?n Manual NC Park ° odlucas Assoc
-tons tar Managing Cdor-, a reran, from the Swine Cdor 7esk Ferree NCSCJ Atr i C,-r.at:unications
%�isanee Coneems in Arirnal Manure Management: Odors and F7es: PRC3107. t 996 Conference Prose-fings (;..rids C�on.r.tiv Cason.wn
-le issues checked ( ) re ain to this oRert,;cn. The landownerirr,.e9. accr agre-es to use sound jw;.n. err: in applying
:0., Conv-01 measures as p.ac ical.
:ar:ify t:ie a.cremer cned odor con4ol Be= Managment lona=ices have beers reviewed with me.
(I owner Signature)
-__Novomoer 1 S. 1225

Mar 1819.12:31 p stallings florist 9102855233 p.3
Version —November 2s, 2018
Mortality Management Methods
Indicate which method(s) 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 Mortallty
D Q 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.
Q Landfill at municipal solid waste facility pemutted by NC DEQ under GS 15A NCAC
13B .0200.
21 Rendering at a rendering plant licensed under G.S. 106-168.7.
QComplete incineration according to 02 NCAC 52C .0102.
QA composting system approved and permitted tip 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.
In the case of dead poultry only, placing in a disposal pit of a size and design approved by the
u NC Department of Agriculture & Consumer Services (G.S. 106-549.70).
QAny method which, in the professional opinionof 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).
QMass 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).
• to 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.
Signatur of Farm Ow er/Manager
`TT —
Date
Date

SHEET 1 OF c'
SPECIFICATIONS FOR CONSTRUCTION
-------------------------------
FOUNDATION PREPARATION:
-----------------------
OF WASTE TREATMENT LAGOONS
----------------------------
The foundation area of the lagoon embankment and building pad dshall be
cleared of trees, logs, Stumps, roots, brush, boulders,sod
Satisfactory disposition will be made of all debris. The topsoil from
the lagoon and pad area should be stripped and stockpiled for use on
the dike and pad areas. After stripping, the foundation area of the
lagoon embankment and building pad shall be thoroughly loosened prior
to placing the first lift of fill material to get a good bond.
EXCAVATION AND EARTHFILL PLACEMENT:
-----------------------------------
The completed excavation and earthfill shall conform to the lines,
grades, and elevations shown on the plans. Earthfill material shall
be free of material such as sod, roots, frozen soil, stones over,
6 inches in diameter, and other objectionable material. To the extent
they are suitable, excavated materials can be used as fill. The fill
shall be brought Up in approximately horizontal layers'not to exceed 9
inches in thickness when loose and prior to compaction. Each layer
will be compacted by complete coverage with the hauling and spreading
equipment or standard tamping roller or, other, equivalent method.
Compaction will be considered adequate when fill material is observed
to consolidate to the point that settlement is not readily detectible.
NOTE THE SPECIAL REQUIREMENTS FOR PLACEMENT OF LINERS IN THE LINER
SECTION OF THIS SPECIFICATION. The embankment of the lagoon shall be
installed using the more impervious materials from the required
excavations. Construction of fill heights shall include 5 percent for
settlement. Dikes over 15 feet in height and with an impoundment
capacity of 10 acre-feet or more fall under the jurisdiction of the NC
Tj:,7 Sr3': y as the difference in elevation
Law. The height is defined
from the constructed height to the downstream toe of the dike.
Precautions shall be taken during construction to prevent excessive
erosion and sedimentation.
LINER: THE MINIMUM REQUIRED THICKNESS SHALL BE 1.5 ft.
------ -----------------------------------
NOTE: LINERS (PARTIAL OR FULL) ARE REQUIRED WHEN THE ATTACHED SOILS
INVESTIGATION REPORT SO INDICATES OR WHEN UNSUITABLE MATERIAL IS
ENCOUNTERED DURING CONSTRUCTION. A TYPICAL CROSS SECTION OF THE LINER
IS INCLUDED IN THE DESIGN WHEN LINERS ARE REQUIRED BY THE SOILS REPORT.
When areas of unsuitable material are encountered, they will be over -
excavated below finish grade to the specified depth as measured
perpendicular to the finish grade. The foundation shall be backfilled
as specified to grade with a SCS approved material (i.e - CL,SC,CH).
REFER TO THE SOILS INVESTIGATION INFORMATION IN THE PLANS FOR SPECIAL
CONSIDERATIONS.

SHEET L OF
Soil liner material shall come from an approved borrow area. The
minimum water content of the liner material shall be optimum moisture
content which relates to that moisture content when the soil is kneaded
in the hand it will form a ball which does not readily separate. Water
shall be added to borrow as necessary to insure proper moisture content
during placement of the liner. The moisture content of the liner
lacement.
material shall not be less than optimum water content during p
The maximum water- content relates to the soil material being too wet
for efficient use of hauling equipment and proper compaction. Proper
compaction of the liner includes placement in 9 inch lifts and
Unit
compacted to at least 90 percent of the maximum ASTM D698 Dry
Weight of the liner material. When smooth or hard, the previous lift
shall be scarified and moistened as needed before placement of the next
lift.
The single most important factor affecting the overall
compacted
perme—
ability of a clay liner, other than the type of clay used
liner, is the efficient construction processing of the compacted liner.
The sequence of equipment use and the routing of equipment in an estab—
lished pattern helps assure uniformity in the whole placement and
compaction process. For most clay soils, a tamping or sheepsfoot
roller is the preferable type of compaction equipment.
The soil liner shall be protected from the discharge of waste outlet
pipes. This can be done by using some type of energy dissipator(rocks)
or using flexible outlets on waste pipes.
Alternatives to soil liners are synthetic liners and bentonite sealant.
When these are specified, addiil-ional construction specifications are
included with this construction Specification.
CUTOFF TRENCH:
--------------
A cutoff trench shall be constructed under the embankment area when
shown on a. tyPic2c,! cross section in the plans. The final depth of the
cutoff trench shall be determined by observation of the foundation
materials.
VEGETATION:
All exposed embankment and other bare constructed areas shall be seeded
to the planned type of vegetation as soon as possible after construc—
tion according to the seeding specifications. Topsoil should be placed
on areas of the dike and pad to be seeded. Temporary seeding or mulch
,shall be used if the recommended permanent vegetation is out of season
dates for seeding. Permanent vegetation should be established as soon
as possible during the next period of approved seeding dates.
REMOVAL OF EXISTING TILE DRAINS
-------------------------------
When tile drains are encountered, the tile will be removed to a minimum
of 10 feet beyond the outside toe of slope of the dike. The tile
trench shall be backfilled and compacted with good material such as
SC, CL, or CH.

SEEDING SPECIFICATIONS
AREA TO BE SEEDED: 4.5 ACRES
USE THE SEED MIXTURE INDICATED AS FOLLOWS:
A. k� LBS. FESCUE GRASS AT 60 LBS. /ACRE
(REST SUITED ON CLAYEY OR WET SOIL CONDITIONS)
SEEDING DATES: SEPTEMBER 1 TO NOVEMBER 3'0
FEBRUARY 1 TO MARCH 30
0.0 LBS. RYE GRAIN AT 30 LBS./ACRE (NURSERY FOR FESCUE)
270.0 LBS. ' PENSACOLA' BAHIA GRASS AT 60 LBS. !ACRE
(SEE FOOTNOTE NO. 1)
SEEDING DATES: MARCH 15 TO JUNE 15
6.0 LBS. HULLED COMMON BERMUDA GRASS AT 8 LBS./ACRE
(SUITED FOR MOST SOIL CONDITIONS)
SEEDING DATES: APRIL 1 TO JULY 31
0.0 LBS. UNHULLED COMMON BERMUDA GRASS AT 10 LBS./ACRE
SEEDING DATES: JANUARY 1 TO MARCH 30
180.0 LBS. RYE GRASS AT 40 LBS./ACRE (TEMPORARY VEGETATION)
SEEDING DATES: DECEMBER 1 TO MARCH 30
LBS.
APPLY THE FOLLOWING:
4500.0 LBS. OF 3.0-10-10 FERTILIZER (1000 LBS./ACRE)
9.0 TONS OF DOLOMITIC LIME (c TONS/ACRE)
450.0 #CAI. FS OF ^MALL. GRAIN STRAW (100 BALES/ACRE)
ALL SURFACE DRAINS SHOULD BE INSTALLED PRIOR TO SEEDING. SHAPE
ALL DISTURBED AREA IMMEDIATELY AFTER EARTH MOVING IS COMPLETED.
APPLY LIME AND FERTILIZER THEN DISK TO PREPARE A 3 TO 4 INCH
SMOOTH SEEDBED. APPLY SEED AND FIRM SEEDBED WITH A CULTIPACKER
OR SIMILAR EQUIPMENT. APPLY MULCH AND SECURE WITH A MULCH
ANCHORING TOOL OR NETTING.
1. PENSACOLA BAHIAGRASS IS SLOWER TO ESTABLISH THAN COMMON
BERMUDA GRASS. WHEN USING BAHIA, IT IS RECOMMENDED THAT 8
LBS./ACRE OF COMMON BERMUDA BE INCLUDED TO PROVIDE COVER
UNTIL BAHIAGRASS IS ESTABLISHED.

0PERAn0N & I1,LA r. q- FN;�NCE PLATY
�OPer L=:001 liquid r..z-�a�e;nezV should be a v�r-round p;iorty, It is espe„�:slly
impor�.*zt to r..a;.age levels so Ell= you do not have problems during ext`nded rain and
wet pe-iocz, y
Maxi . t1111 storage capaciy should be available in the lz Oon for e
receiving C -op is dormant(sucz zs periods wh„z e
le xtendea j� ,�y rt wintertime for b�e.^nudagmass) or when there Spe�s such as the tht:.•nderstorm soon in the summertime. This means
that at the ;t signs or plant o ow•t1 in the later winter/ea-zl Qirrigationaccording-
21 1 waste management plan should be done wh.--lever the land is dry enough to a
r......ve lagoon liquid. This will make sroraae space available in the lagoon for future wet
Periods. L*1 the late summer/early ir1t the lagoon should be pumped down to the low
In2r" (see Figure 2-I) to allow for w
maze=air tt�:e oon close to ti'inter storage. Every efro;-t should be a
made to
lagie M nir:,um liquid level as long as the weath, m
_.
utilization Diawii. allow it. er ar
Waiting Until the lagoon has r�:c,%-,4 its maximum storage capae:'ty before s�^�; to
i�gztr Ices not le ve room for ston:nz
Overpow from the lagoon excess water during extended wet perods.
moon for any reason except a 25-yea;, 2=-hour storm IS a VioI2'?Ort of
smote law and_ Subrwt to Denary acao. .
Tne routine .--n.-. A a^.ce of I`� .
a _:�" -•evolves tine =o ,owL-ia:
• ��G•'�tte..a:, a OI a vez=.—;V. cover 1(i: n
-s:, o: car::.c� ce.;.:t,:da_P1�ss a:-e the yn_s a mos: C-0m.":jon veg�•--. e
Tr: vege:a�o;; si.ould be e-'n•
•=.=i=::a:.1 a vigrus s:_ .�_-, y..�., i+ n�.. e_-. to
ooa.Lc. T"ne am, OI ie..,2,,. ;ice
'' applied sa'lould be
b2sed onn. .a soils tes:. our i ti�le eve ,,� .
a soils teS a.... `" rlt that I. clot Dt GcO�..:.LC to ob:2
`e.:ch Yea:, ti�e�I�oon e—bar�ent a. -id Sui►oun •' .c a"c
5c;otrid be fe:—c w:_: - - a:, ..
pOL'nCS c:$: aore c_ 1 0-10-10, or
7=:r:iS:: and Cif;S 0 L•Ze 0�*IKn1e:It Ii?LS' be c0`=o lei be
core by nowirE s?:may, ..._. T'nis r.,av
Win_, °bZ- rng, chopping, or a carbinauoA of
p.aCu�,rS. lr s sa':O �jd be done at least On ce a Ve,�r and
uoss:oly twice in yam; ti.ai weather conditions Faze: -' -abl. for
r',-' 7q ve,etadv- �-ow
NOT'.c: L vege=—;or' is contrOle by sp.2ving, LlIe he: oicide must not be allowed to enter
the lagoon v.�-�:. Such che.;ji�ls caulc rarnn the bac- :a in the lagoon that ale L_ ,=.
the waste.
Mainter.ar.ce �-;s-,rw-�ons or the I2Qeon should be made CL'':eg the initial 2'j:.:Ina of
i�� mor.L ly and after major rzirj�—�jI and stc.:.e events. Ice;ns to be
Cher shourc:crude, as a , • ;.;tug;;, tije following:
tii ate L'Ilet Pipes, R�e ciinc. Pines, and Over;•:o�,.• pi�.s—look ror.
'- • s-paration or ioi,;ts
2• cracks or bre- ks
a"=Lm ation o s !s or m rie:z s
overall conci:=on o: Dioes

• Iz;oon sur,'ace—look for:
I • undesirable vegetative growth
floating or lodged debris
Embankment—loob for:
I• settlement, c.,-ctdna, or "iva" holes
7• side slope stability or bulges
43 • wet or damp areas on the back slope
erosion due to lack a result of vegemtion or as of wave action
D. rodem
rodent daage
Large: Iagc-ors may be subject to liner damage due to wave action caused by Song
winds. Tnese waves can erode the lagoon sidewalls, thereby w
A good s—mod of veae.- T o y e�k..nin0 the lagoon dam.
wave action motion wi.I reduc,. the potrztial dam2;e caused by wave action. Ir "uses Se:iouS damage to a lagoon sidewall, baffles in the.Iagoon may be
used to reduce the wave impacts. Y
Any of &.es, =eatures could Iead to erosion and weake:u.*tg of the r ,.
any of tsetse fezMres, you Should � an anpropriatz e,. -- = L' your
Iagooa has
�' You ` e ja-*n:jia. with d.sg1 and
cons cc`on Or wsw lagoons. "
' ray need to provide a te.� _porgy fi,; i tiis a
or a w�r� cis:;a:-•g�, loweve:, a De.�^anent solution should 't
Any digging _.to a be revlewe.. by th..
untie_—. _i a a lagoon dam wlt:•i heavy eruiOment is a s"�o,s
r...or^e::ced ^fr ari
pote�dz:ly se ;,• s^canseOuences a_:d should not be conduc•---:
• :.:�:sle: P:�;,Ds ;.:le ; for prove= -
- ovrr�:or.
• rw� c � DualDs
• 1:+:mac ion--Du.'II S
C•"•e =or ==ks, loose rIr- as, a7d ove_ 1? pump Ore.won.
An unust:aliy Ioud or �-=:di�g
noise, (^+= � .�" t c:�2Qt.^.i Oi •4'ZO ^III, 1—.2v lll:^Ica'� t::ci uIe-'v::.T.� IS L^t n= or ra-a= o
replace-:- _ - .
NO'I=: - _gig srsw:ns s:�ouic be itspw^t and. o era:.,.
`"' ue."tly enoug:t So t:,a* you
are not e•.�:y "su:p sue" by eruipment fal1L're. You would pP...lorri2 you- _
eL-.:mow w-:ta-i� at a t+:;ze khe., vou: Lagoon is at its low le��e?. Tnis all Dina
ty time s*-oWd . alor rep' a •• , wvl OS;. SOII
sir; br�:L -- Ravines a nearly fuL boon is not the time
to thili aboi. s rtc:li,Z;, a or bo-ro
Our nei� t c r..�ai.*'u•:a° , wIIIb pLi:ipS. Probably, if your lagoon isfu'll,
Y Saco: s lagoon is i�II also. You should consider ma ; to nin? an inventory o1 s, ^s parts or"
Su..Iacz water diversion fe: tures are designed to carry all SurI2ce
C ZZ'age Waters (such as rainfall runoff roof d_c iaage, gutter oudes,
parlcng lot mnoi) away from your Izgoon and other waste
4 ?neat or Storage soz:c;u,-=. T"ne only watr: that should be
COrn.ing from your lz;oon is that wrath comes yoM you: flushing
(washing) s.sce:n pipes and the rair,fa l that hits t:,a boon dirert!y.
YOU should•insDzrt your diversion system for d e following:
I. $decuate vegetation
?. diversion capacity
3. ridge ben he:ght

Ideat+.ned p:�blems should be carr r-ted promptly. It is advisable to in
duaIIg or i+m.-nceIY iolIowuz� a hea _ _ sue: your rys2
d.:�--xn:.ue p-Oper solutions Consul, t"" � a `mac' u R=� �' "
with zppropr.
You should : e-. ,.ord e Ie'/el Or the �9
the level z �aot just prior to when rain is predic", and th=
m again + LO 0 hots; a.r-�- the rain (assumes the is n0 pL...DinQ .
give you an idea or how muc ;you; lagoon level „� .� T� cm
ou mtst be r=rdinP v will rase with a ceMM Min. lj amount
(Y a.sa Your r�.nrraiI for this to worn Q ,
)- Knowinb &-is should � in
P � ' a ��CaLIOn aDDLCat^.OnS and s"u0:?..ge
have an is=►Ow proble:u i-om a stL; warms•-� y°L" lagoon rises exc velY, you uay
�°On 27orn the suroundin; land. diversion or th:� may be s,,--p�;e into the
Iagoon Ope.-adon
Start=:
I. ItrmeiatelY Wns ;t;Ction es-m-b s:1 a c0 .._ le,' sod cover on ba-r sou
surds to avoid meson.
17- FM new Ia°oo; des zz. �,,; tmen* voiu ,Z_at lit hall fuL of w -
�'aStr Ioaci.*i; be S, t� +drz; c. _re n cr to e: cde ii.. C zae:ore
rli.ri, or. barn sioc,.,,.
3. D r-arpices o oor.
'C - , int Z-c should lave ile.;.. _1- �••t
_ . :0 es,...ar-e ne--
.,Q cr a.o�.e- -;� , ....: the borLor_-: c_ t:-:e i_oon e}r�_, *=mot
.. :S OI slowLic t!.e LrjcO -._ t0 ct02C ^ro;:Oi
4: tiYPen possible. V.':-;.t loading new !a OOns im. the SJ�nc t0
b<�.e 2l :Si: r1i�� Tv ii.L='""v
..�:..: �dL to w cT� e� wea
t 1z`oon
�-I s,;:n,. �r :a: a hew b_ see: r^' wiu-± sludge 3"'7`',7
-,-dL L t:. 2iIOLL'Ii. Of 0.�{ c:e:..e:at Of tP�-L.la�i;L
=-tC'�?;G' Y_tti':I-
. iLS s2edILI should c<=- u►r' c_ ��t two w,,.,.i ' -
6- _'-((Main a .Zc.ic c n the T� T �j�
/.V add �4-'T`'.�+•_! w.> Q `L I�QQ=1 11QL:�► L7 tL' the a� 1G�.jS 17��M
ume at the r?G.t- 01 ? iQt�uC �r I000 ti'.I.�I••. iw: of
Loon liquid volume, until the pH rises above 7.0. fJptimu:-i ia;ocii iecia.
p" s berwmn 7.5 and 8.0.
7. ?_ da_-- coIor, Iac: of bubbling, and excessive odor signals iraeert;,-w
ololo l aC hvirt. Consultation wit: a te::1rd�l 5; '.atiSt Is r...omrl,-_^.d�2
t:���e cand...ors ce: ; fo= prolorgw pe:.oc.:, espe�: lly tx wc.,^Ii
T"he mOrr ,`e�`�
v y and _'I � &a" w-_5tz' r ate" '.s add--; to a lagoon, the t-- tre
I�OOII will Yi.-1C; OR. Fusr, SV zems w I� oo be....
ash waste into the la-II�OOA SeVe.cl tr.:es '-iiy ct'�..
OptIIrltZ:u fOi' i`°;;.i;e:IL Pit rer :: _e SS'SL'.;IS, L'1 �%'t'.i.^.:i One 0= mom buildL'l�s =- d=in-4
and r':aa-e day, aso w•ors w•e:.I.

_�,aiGuCr Ovate: cozservtdon—min:. 7 A b ,: tUng, w^ o,- ,
-7 at., LScgc and
s?' -r2 from I'._ l:in waterers, broken pig and %ashdow:t dzroegz pipe: mintre..^.z�ce a.watr: cone: v-�on.
ie-4 WaM cr,- and spi?I2 ac by Is'woincre e.-s ad' ,
will =dtuce the a.atou:at or solids enLe:Inc the l2.-�,oOn Jet-... mis
Maincin Lagoon i-ia L?d level be;wern the sLor�;e I�:e? d
the roll ✓ mm ;0= storage level_
• PL visible ma:k=s or stakes on the Iagoon bank to show L�-
minimum liquid Iev-i and the ma :imurn liquid. Iever (gtLre
S,rc it do r at tie a Truest possible ciarr in the spring baste on
numelc require~-.-s and soil mo'
Will bA �..� �='t:�porary sLorz;e
rar u�ie summer thund,_--sro= soon. Su;,,,a;y
in the 1= su..,nmeeaTly &17 tO piOViC.. c �
storage or the w .-:t=. o r�r:tura L�eor
• iae I� o0r+ LTcu:c :sve? S,;Xu%d rXver be close, - _ o .
7cirl: 0r ' -- c !:: e �u.l root to L:..0
L. O: .i,va:-i.�:a11—.1iL.
• Do n0c �;::� the lazoor, L; te.
cold �,. low... .= the :="a:•:e::: S:^-
Iw LIMa,S; VOU a:ro
:.o ate LOa: pu: - ate:y 18
;_:�..s appro.,ir �.lches rnde:ne= I= c�...d
s z-- and as a;;-�r frorn lire dr�ir:p:pe +^ os as uossibic.
L• ~v�:.. aL GP. �-.O::S O: be'din m, aze.'-^ C IOri C...S ir�...•'.ZLI°w Ca �- w.n.��+'
:_
o- O t.: e. O= c.' 1 j • ^ `o into
$Oil
`^� L.� .....IOD• C.S lrollZtia ins a:. .e=d o: �I�}�}'. }� /� fr�v
tt'l.•.V�yff V. Lia�rJ amw
w.
veP-zZdor►, rodent, and v--�:;, c„^a�I ne : L=._c�:, �.
Do not a -How L _ 0_-Ia.�e bushes to row on :lagoon dare or Vr1Y�-'�-...•t:
• Rem, ove sludge i:,,m, the lagoon either when ^e slu ge
• the d� stor`„ czr -=:f is
i -'i Or De:Ore it i._:S j0 per�.e;Tt of LCie a
p'e=lna.'1e.:L S-ioic�,. VOIL'Ine.
l a:�.f r;,21 production is to be te.-mi.rat-zd, the o w-Ze�is r�..s0ons<ble 0r
ob.�i:tir; a=:d immle::te:idng a closu.- DI ,n to a-.:::�:,zam the possioi�; o a.
01 F,:�;,t dis b ��r�w
SIUCI,-e.Re nov2I:
Rare oA.f la�oo:z sled builldcp c: be rtduc---4 by:

• proper lazo0:t S:i,-;v
me ;zanic:! SOU S S=amdon of zic:s^e~ �; ;S•„e,
• 912-virl Se:•i .'2^ of zll�S+;Z�..;��j�/ZSL �{�. - �y�^ �� �,} /��
�r1:1 ML-•.i 1Mn-'A aJ nQv �J♦Vi spill:,:--.
Q :r♦ .:..: wvJiV✓li.i L...�y CeJ•nw Y/� �Vi.i, VJ.
.,..
Lag
Ofli Ze that LS Ie::1oVe4 crii'.'2-2i j/ lathe: LiL-I s:ort.^_' lCil� Lr.Til wL1i,:
have more nuHent.,
have more odor, and
r-^.uire more h-nd to prot}e:ly use the nut e.^s.
Remov c : te," �.•1IQLeS:
• Mre a custom ar=, i�tor.
• ti•Ie Siudze and lagoon liquid w in a chouve: azimco►r. impelie:
pL:ap th;ouall 1- ,;e-bore spririUe_- C ;o;. sy s�::I onto n
and soil il.z. y
• �e•:.•��:e: ule Tu��e: ,
of Tammoon by no:. or, ne:_-bv ro,ia::d
:OiSelaZdi I::.::e:.:- :±: siudze7 7L•:ZZe7 L^:O 1"'.�i �rico ^ . OI
z:Q S'JI. d 0%t0 - - quid' sli...^. at1_ i�^�.*':,
•.. �. J:G: C of SO1G`u." .C? a:., 5V—' T1='-L% :GrI
0: la` 00r: byC, Ci1:o nC.-O-C C:
:1 w:.... C-=t^.� 0: '•erica• Oi
i..:•Ie sludge so �.` !.ICLUCS C21 C- v?GCS
:_Z0 izzoon• a:low si'..0 !�....
C :J C:ODl� =- to de':v a , haul and -d tie t:Z I.'.�.',L�
ZC Ci �?_: ^oi�:Cj a:"Id sO=i ;"Co rV.
.+�G
-,-_C z YOU ..,s ^ave the siudze .::ate�< <=i� �� or was•,
z: You would yo= =aron water. ,;c--.o,.-. P.. -.-•-3-;iL�...nS :;- 7iwu:e .. :ie SiL
cLri!j COnd _t _n C"=.IIT ~:C OLlnl-.t=Qstuds' t0 ilelL'; w''-
!'' betS aS w :-s :_v previou's w e See a=.=cz^OIIS t0 t:;<' held --Z C3-0
be disc:==,--.^.. I:^ Ce:: ;'1 CC27t.: .7.
Wnea r � siudze you 1�.'_ s: i -
at*.eat`on by ' e ,.-, ' .. asp pay at�:Itrori to the re_ o 'breve cr.:;� • CIO=
t 'Dumnve: or drs 0 :,t '
Z cu see o .motor wiil e:;sure tl-.a: th Iagoon line: A.e^^•nc
intac• y soi? rrlaw;;� or :.ze svnL`Ietic I.Lrie::—A ate:"? being disc: ro , you s::ocId
stop the a.,v_� i,:,mrci-e.y z:d r:ot reSL'iTie until you a�-e s.-r the sIL'dPe: be
�o�snl v•�u.A. i.n-- injury. Z lip darage:a it r,I�:s_ be : ai:�oa as scor. ar
Sludge rr.^ove^ •om L'Ie lazeoll has a /�I'�c h hi-h phosp.:c:us znd.heavy me•"i cr+te t
thaa liq�: id- Betz e of taus it mculid o;ojabIy be a�pser to i.a=d. with low vhoso7 cr-*s
end me2l ^eveis, z iliCiC::te.^, by a soil test, and inco :.orates.^ to : e L^.� L`�e c:I�., ; of
e.-osion.- ?vote r L the s:cca_ is app;;w t ae?
should be ~0 o i ds w Lz ve_-• ±` : scL-�,x phosp;:c: , it:
rr/VL�.,^. ::.y o:1';:•ms ec .1 to the c.oa r--Ovzl Or pa•Io5'JnO1L5. AS Wlt:�. (.t i�
w•cS-eS, c::+'nV5 icve yOL: i2z00A S L.^.,e a=:aly� r itS nL'� -^.t VZ!L'e.
lne z=lff ca--- on of Siudge wl:l i:.,c .' .,t tt e amount of odor aS ih= 4:^ r r+ C:
cste a17DLC3..OQ
C Id �Di -" vC:� s;:oLid be Lse^; CD 0.^,Se:Ve G`le W'Ind d:� V.._^.O.'. a::.. Other COi]QtaOIiS Wt'.t:..
Ii. �S" t. CafIG':Tl Of P.�:�'30.-5.

POSS%le Causes orla;oon Failure
I.zaon fault=rsultin theuIIplanned discharae of wasmwater Of fa t:z-,.s include Ie3�2;e through the bottom or sides ova from the =C=-� TYPCS
dam. Asst=ing Probe- PP and bra ;1 or the
design and cousatiction, the owns has the responza) u for
safety. It:s1,s which may Iead to lagoon failures inciud;:
Modinc;3Iion of the lagoon struct=e—an a nIe is the plao,==t or avi_ac
in the dam withour grope~ design and conga=:ion. Consultaa lagoon design before placing any pipes in dams.) �'- in
Lagoon liquid levels —high leve?s.are. a safety ask
• Failure to ins- ecZ and maintain the dam.
• IM-lems sur'ac.' W4-t= flowing into the lagoon-
• L:ner in�ry prot.t:� ;t from role: Pipe s==:ing, damage dming
dodg—em3 oval, or'-L*pn:*r from lowe+in? on lagolimed level bellow COL dw� tall...
NO ice_ l Izoon wale,- :s at,owo
_4 .
auli.ies to fC::u in the dart. Once ;` overtop the dam, the rnOvin r w-ate^wLT seen ear*se
CzznOf wcSw and possible ca:-3 `iz" s �s, it quickly. mouse a lam; a;,::=;e