310095_Application - Digester Gen Permit_20241014

41mm* AFO Permit Application
FWNEFM • VANUrAC:TiSEM • LX]FtSTMX T0M
October 14, 2024
Christine Lawson
NCDEQ Division of Water Resources
1601 Mail Service Center
Raleigh, NC 27699-1601
Subject: Price Farms
Facility # AWS310095
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 Price Farms. The subject project is located in
Duplin County, North Carolina. In coordination with this digester permit application, please withdraw the request for renewal of
existing AWS permit associated with this facility.
The digester constructed on this property will meet setback parameters as required per the Swine Farm Siting Act. The digester
is beyond 2500 ft. from any public building, 1500 ft. beyond any occupied residence, no closer than the existing property line
setbacks, and beyond 500 ft. from any public water source.
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 24,500 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 provided as needed. See plans for location. Spares 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. Off -spec product gas from the upgrading skid is recycled to the digester for
reprocessing. 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 the FEMA FIRM map labeled with the "proposed Digester Site".
5. One (1) copy of the permit form Section 3.6 components.
6. One (1) full-size set of the engineering plans.
Page 1 of 2

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,
6
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: Price Farms
1.2 Print Owner's name: Tyler Benjamin Price
1.3 Mailing address: 1018 N NC 11 and 903 Hwy
City, State: Kenansville, NC Zip: 28349
Telephone (include area code): ( 910 ) 271 - 4463 Fax: (_) -
Email: pricetb2002kgmail.com
1.4 Physical address: 1174 NC Hwy 11
City, State: Kenansville, NC Zip: 28349
Telephone number (include area code): ( 910 ) 271 - 4463
Latitude 35.006' Longitude-77.885' (Decimal Degrees from Google Earth)
1.5 County where facility is located: Duplin
1.6 Facility location (directions from nearest major highway, using SR numbers for state roads): From Exit 373 on I-40, head
east on NC-24 E for 5.9 miles, continue onto NC-903 N for 5.2 miles, turn right onto gravel road and follow to the farm.
1.7 Farm Manager's name (if different from Landowner):
1.8 Lessee's / Integrator's tor's name (if applicable; circle which type is listed): Prestage Farms Inc
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: mkotovskykroeslein.com
2. OPERATION INFORMATION:
2.1 Facility number: AWS310095
2.2 Operation Description:
Please enter the Design Capacity of the system. The "No. of Animals" should be the maximum number for which the
current swine waste management system is permitted.
Type of Swine No. of Animals Type of Poultry No. of Animals Type of Cattle No. of Animals
❑ Wean to Feeder ❑ Layer ❑ Beef Brood Cow
® Feeder to Finish 4,340 ❑ 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 Acres
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
Digester
Synthetic
37,800
Synthetic (80 mil)
226,440
217,000
27101
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 27601A
Y
Clay
48,814
418,212
371,403
Lagoon 27601B
Y
Clay
53,941
435,611
435,408
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?
2.7 Does this facility meet all applicable siting requirements?
YES or NO (circle one)
YES or NO (circle one)
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
TDIJ
Barns to Digester
Pump Station
6"
600.2
15.76
RA270-00-27101-5
Barns to Digester
Pump Station
6"
497.8
20.68
RA270-00-27101-5
Digester to Secondary
Gravity
12"
N/A
N/A
RA270-00-27101-5
Secondary to Tertiary
Pump Station
6"
499.3
15.07
RA270-00-27101-5
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.
Applicant's Initials
3.1 One completed and signed original of the application for Digester Animal Waste Management CF
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 CF
indicated.
3.3 Documentation that new digester structure(s) meets the Swine Farm Siting Act, for swine
CF
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.
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 = 135 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,
CF
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.
CF
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
CF
added to the CAWMP for permitting purposes:
3.6.1 The Waste Utilization Plan (WUP) must include the amount of Plant Available Nitrogen (PAN)
produced and utilized by the facility
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. ENC:INFER'S CF.R,rIFICATION:
i, Patrick L. Kullberg
attest that this application for Price Farms
(P.F. representing Owner's name listed in question 1.2),
(Facility name listed in
gueslionA-. Whfls bccn-revir► cd by mt-andis iccmadc ai d-complctc-tn--thc-best afmy imowledge�-l-tndcrstand-that ifall-required
pans of this application are not completed and that if aft required supporting information and attachments are not included, this
application package 11 be iviurned to i as i complete.
Sigrunure Date 9/27/2024
Engineer's Seal
0%11ttttur11i
•` ,� CAR �.
ESS /
e SE i
Z6059
����r�r►itimK����
09/27/2024
5. 1`ARAI G%VNERIPERNRTTEE CERTIFICATION:
I, Tyler Price (OvvneVPermittcc name listed in question 1.2), attest
that this application for Price Farms (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 returnod as incomplete.
Signature .rt.Q,ea- Datc 7/30/24
6. MANAGER'S CERTIFICATION: (complete only if different from the Farm Owner)
(Manager's name listed in question 1.7). attest that this
application fox (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 rctumcd as incomplete.
Signature
Date
THE COMPLETED APPLICATION PACKA(;F., INC] UDING 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 FNCOVRAGED, EMAIL TO. KAMI;[e-mail]
FO R N1: AWO-STATE-G-DIC ES'I'E R-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

•� R�ESLEIN
27101— Price Farms Puma Calc
Monarch Bioenergy LLC — Register, NC
Swine RNG Project
A1000 Pump Calc
R&A Project RA270-23
Issued 240913
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ENGINEERS • NIPNUFA TURERS • CONSTRUCTORS
Digester - Volume Calculations
Project: Price Farms
Project No: RA270
Date: 2024-09-13
Rev: 0
Existing Configuration (For Reference)
Farm Information: Farm Population:
Price Farms 4,340 GF
Total: 4,340
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
Location: Duplin County, NC
Design By: JRE
Checked By: MWK
*Note: Roeslein Digesters are designed regarding Hydraulic Retention Time, not NCDEQ Minimum Treatment Volume for hog farms
*Note: New digester is NOT providing additional treatment storage capacity in accordance with NCDEQ standards (135 cult/lb*lb/hog), but instead serves as a
steady-state reservoir, diverting additional water volume to existing treatment lagoons for storage and land application.
*Note: Existing Price Farms lagoons sized by others - No indentification provided on existing documents
Volumes:
Total Capacity
4,340
Capacity I cf/head I=Total
Treatment Volume=1 4,340 1 501 217,000 cf
Capacity I Retention Time (days) I=Total
Volume for Retention Time= 1 4,340 1 40.001 78,448 cf
Volume (cf) I Days of HRT Storage
Provided Retention Time (days)= 1 226,440 1 155.05
Desired Digester Treatment Volume:
Sludge Storage:
Storm Storage:
Heavy Rain:
Tota I:
Volume Required (cf)
Volume Provided (cf)
Lagoon Calculations
Lagoon Volumes
217,000
226,440
0
0
0
0
0
0
217,000
226,440
Note: Sludge storage value is shown as 0 because seed sludge volume is negligible and influent sludge volume is accounted for in the 50
cult/hd and 40 days HRT values.
Note: Both Rainfall values set to 0 because no rainfall will enter the sealed digester. Excess will be pumped off of cover.
Note: Per Conservation Practice Standard Waste Treatment Lagoon (Code 359) "General Criteria for All Lagoons", the digester storage
volume does not need to account for rainfall for completely covered digesters.
Total Temorary Storage
Proposed Configuration (Proposed Digester)
Digester (Proposed) Volume
Vol. (cf)
High Pump Elevation: 234,769
Low Pump Elevation: 218,256
Temorary Storage: 16,512
Digester (Proposed) Berm Length (FT): 270
Digester (Proposed) Berm Width (FT): 140
Digester (Proposed) Berm Slope: 3
Digester(Proposed)Stage-Storage
Elevation (ft)
Area (sf)
Incr. Vol. (cf)
Cumul. Vol. (cf)
74.2
13,464
-
75.2
15,096
14,274
14,274
76.2
16,800
15,942
30,216
77.2
18,576
17,682
47,898
78.2
20,424
19,494
67,392
79.2
22,344
21,378
88,770
80.2
24,336
23,334
112,104
81.2
26,400
25,362
137,466
82.2
28,536
27,462
164,928
83.2
30,744
29,634
194,562
84.2
33,024
31,878
226,440
85.21
35,376
34,194
260,634
86.21
37,800
36,582
297,216
Digester Treatment Volume:
at High Pump Elevation of:
at Operating Elevation of:
at Low Pump Elevation of:
Elevation (ft)
Cumul. Vol. (cf)
84.45
234,769
84.2
226,440
83.95
218,256
Elevation
Vol. (cf)
Top of Dike Elev. =
86.2
297,216
High Pump Elev. =
84.45
234,769
Start Pumping Elev. =
84.20
226,440
Low Pump Elev. =
83.95
218,256
Min. Operating Elev. =
82.2
164,928
Planned Sludge Elev. = 76.2 30,216
Finished Bottom Elev. = 74.2 -

ROESLEIN
ewa • �+aa..�acru�s • co�raucraas
27101- Price Farms Digester Narrative
Monarch Bioenergy LLC — Register, NC
Swine RNG Project
A1000 Digester Narrative
R&A Project RA270-23
Issued 240913
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 pumps at Price Farms will be GEA pumps (pump and pipe sizes on Pump Calc sheet),
designed for flow through HDPE SDR 17 force -main into the new anaerobic lagoon digester.
The approximate dimensions of the new anaerobic lagoon digester are 270 feet by 140 feet with a total
volume of 297,216 cubic feet and a treatment capacity of 226,440 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 thick 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 weir (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 gravity feed into the existing lagoon through a 12-inch diameter pipe.
Water will be transferred back to the existing lagoon 27601A by a floating GEA transfer pump (pump and
pipe sizes on Pump Calc sheet) in lagoon 27601B through an HDPE SDR 17 force -main.
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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Anaerobic Digester O&M
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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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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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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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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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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.
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RO E S L E I N Anaerobic Digester O&M
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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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Provisions for Safety Measures
Register, NC RA270-22
Anaerobic Digester O&M
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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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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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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.
1: Cover is mostly flat, with pillows around the outside or in some areas.
.t , y•�
3: Cover is inflated but center rain trench and laterals are still on water.
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5: Center rain trench is on water but laterals on one side are off the water.
w
7: Center rain trench is on water but all laterals are off the water.
y
9: All laterals and some parts of the center rain trench are off the water.
r
r
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Appendix B: Digester Operation SOP
1. Overview:
Register, NC RA270-22
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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.
OOF 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.
<+epw'+ 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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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-
4 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,
aaeHBMweW 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,
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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

s1
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

DOCUMENT WILL BE FILLED OUT
AS PART OF AS -BUILT SUBMISSION
Policy
Spill Response —Policy
Revision: 1
Effective Date: 11/21/2023
Location — Monarch Bioenergy — Price Farms, Kenansville,NC.
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.
• 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 Price 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 Price Farms are notified immediately.
4. Clean up the spill — If the spill was not caused by Roeslein, Price 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'
free board. If the water management pumps are not working, the lagoon effluent will overflow into the
evaporation lagoon.
5. ALL ON -SITE EMPLOYEES SHALL FOLLOW APPLICABLE SECTIONS OF `COMMON SITE PRACTICES FOR ON FARM
ANAEROBIC DIGESTION SYSTEM'— SEE ATTACHED
Page 1 of 1
hupsJ/prideconveyancesys.sharepoint.com/sites/RAESafeuyGroup/Shared Documents/Environmental/Milford SF Locations Spill Response Procedures 091423.docx Printed: 9/15/2023 7:23 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
M
ti00
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
MANUM
STORAGE
ALMAEME
DE ETINECOL
dQUID0
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
Figure 3: Permanent ladder and
guardrail on feedstock storage tank
employees and visitors to the AD facility should be cautioned not to touch any equipment or
pipelines.
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
digester) and digestate (any material exiting
the digester) should be carefully transferred '
and contained. In the event of a major
feedstock or digestate spill, workers should I
exercise caution when containing the
material. The first step should be to control f
the source causing the spill. Once this is
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
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
IL
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
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
DANGER/PELIGRO
CONFINED
SPACE
ESPACIO LIMATADO
information and guidelines are intended to promote a safe working environment when
confined space is involved.
7
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
i
4,
t
ImaPs iram 6000c InaPs
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:
1. 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
A

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
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
I
DEADLY MANURE GASES POGSBLE
DEA7W
iMAV BE IMMEDIATE!
ZZ
OCA
ENTER PITY WITH:
• SELF -CON TA14ED AIR SUPPLY
• VENTILATION
• RESCUE HARNESS. MECHANICAL
LFT. 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 17: Enclosed electrical
transformer
Figure 16: Standard electrical
transformer with exposed leads
Figure 17. Enclosed transformers should remain sealed
and locked at all times, and only a licensed electrician
should perform transformer maintenance.
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
FWITUT r
EYE PROTECTIOik AUTHORIZED K li�fiDS " ��" *0 $MOKI*G
REQUIRED OEsNMILONLY PERSONNEL ONLY CLEAR �4uo SPARKS
FLAMES
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

A United States
��►. FAAgency
Environmental Protedion
Office of Air and Radiation, Mail Code 6207J
www.epa.gov
EPA-xxx-x-xx-xxx
December 2011

Sampling protocol and schedule for Monarch sites
Date: 10/08/2024
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. Influent and 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.
3. The influent sample must be collected from a "cleanout" just prior to entering the lagoon using the telescopic sampler and 5-gallon
bucket while following all site -specific safety policies, including Lagoon Access Safety Procedure
4. The effluent 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
5. Procedure for sample collection from a Cross over pipe
a. On opening the valve on crossover 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.
6. Sampling for sample collection from a wet well or cleanout.
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/cleanout to get a representative sample.
c. Gently homogenize the contents of the bucket.
7. Grab a sample from the homogenized mixture to fill the labeled sampling container (influent or effluent) and put the container cap
tightly ensuring a watertight seal.
8. If the samples are to be stored for more than 2 hours before shipping, store them in a refrigerator preferably 40C or lower.
9. 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.
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.

Sampling protocol for lagoon liquid samples (Secondary lagoon)
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 examined for sludge levels once every year.
2. Sludge levels in the covered digesters will be examined once every year appropriate sludge management plans will be put in place to
keep sludge levels in the digester under control.
3. Sludge sampling, from the secondary lagoon, will be conducted during sludge management events to determine sludge composition
especially nitrogen, phosphorus, potassium, and other micronutrients.
4. This sampling protocol is intended to help evaluate progression of sludge level in the secondary lagoon and covered digester and ensure
agronomic land application as per nutrient management guidelines.
5. 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 T5, Ammonium nitrogen, pH are mandatory tests and if done separately cost more than the package.
Table 2 Optional tests for lagoon/digester effluent sampling
ate
Sulfate
Sulfide
EC
Carbon

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DATUM INFORMATION
The projection used in the preparation of this snap 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 ,n the production of FIRMs for adjacent
jurisdictions may result in slight positional differences in map features across
jurisdictional boundaries. Those 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 clovations on this map are referenced to the North American Vertical
Datum of t988 (NAVD 881, These flood elevations must be compared to structure
and ground elevations referenced to the some vertical datums. 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.nas.noan.gov.
North Carolina Geodetic Survey County Average Vertical Datum Offset Table
121 West Jones Street County Vertical Datum Offset Ift1
Raleigh, NC 27601 Dupl n - 0.94
[phone]
www. ncas. state. nc. u s
I Example: NAVD se - NGVD 29 i ".94) 1
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.
•+eta ARTS
aC x
o
--I �'�` FEIJA:iL.[x_:='E+�;'•1 r;_, FiGH7�[:.+._�h�iTi��: q'�l+ *yam
This digital Flood Insurance Rate Map (FIRM} was produced through a unique
cooperative partnership between the Stale of North Carolina and the Federal
Emergency Management Agency (FEMA). The State of North Carolina has
implemented a long term approach of floodplain management to decrease
the costs associated with flooding. This is demonstrated by the State's com-
mitment f mi m m I in r I I level- A f this f h t ever to a floodplain areas at the eta eve s a part a s effort, the
p p 17'a
f 'n h in in Cooperating Technical co n State o North Caroh a as )o od a Coops; at gState agreement
t
with FEMA to produce and maintain this digital F'RM.
www.ncfloodmaps.com
2 320 000 FEET
460 QOD FEET
3S• 0O' 00
3876 M M
34• 59, 00 `
S
iJ
3874 wow
:u
445 ODD FCrT ..:._
TON
X
3872 ma M
440 000 FEET
JOIN$ PANEL 3426
77•SS, 00- 77.54.00^ 77053' 00-
234 3W V r1 236 Dot M 2 335 000 FEET
•� � � �_ Ifl'il` E7Y�
all
Z�E xZO
ima
lr•:•J- ..
- - Yam• - �. � N •� N a f•• • _ •! ( O
V,
rr ., DIGESTER IN
ZONE AE Al.SITE
[:
_ t
- - ZONE AE
�� ---_ �:•r,` y itirrrlt f3.*crrl-?i.
X/ ]
�. 117 + r
r:f
zI=' -ONE A'
ZONE .X
-� ZONE Air
ZONE K
— oil
_`_ Alt � �yy - �# 4F •�- ,�
ya - -
j ZONE AE
t
LONE X
r'r IFh
� � J
ZONE AE
ZONE X
ZONE X
t O,7
I
I ZONE AE
ZONE x
.. `.
+/S ' • L'ki .'4 ri4'
t
ZONE AE
f
ZONE x
ZONE X
ZONE AE
Lr�
ZONE Xf
-ti
ZONE X
ZONE AE.
:a:, r
77.52'00•
23c c_: rr 2-MO 000 FEET
_7 460 000 FELT
ZONE X
' ZONE
7C'
+ 35. 00, 00 `
ZONE AE
ZONE AE
455 000 rEET
3878 OO u
34.59'00-
>;t
ZONE x
-�77 cco u
440 000 FEET
2 320 000 FEET
2 326 DDO FEET 234 °a M
2 46 FLOODING
340 0FEET
CrFECTS FROM 238 WO 00
77• 55' 00^ 77.54' 00 •
QO'
71' 53' NORTHEAST
T7.
CAPE FEAR RIVER 5�
JOINS PANEL 3422
NOTES TO
USERS
This reap 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 www.ncnoodmaps.com.
of small size. The community slap 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
updated or additional flood hazard information.
these new stream channel configurations. As a result, the Flood Profiles and Floodway
To obtain more detailed information in areas where Base Flood Elevations (BFEsi
Base map information and geospalW data used to develop this FIRM were obtained from
Data tables in the Flood Insurance Study report (which contains authoritative hydraulic
EFFECT[VE DATE OF FLOOD INSURANCE RATE MAP PANEL.
and/or floodways have been determined, users are encouraged to consult the Flood
various organizations, including the participating local communitVVes), state and federal
data) may reflect stream channel distances that differ from what is shown on this map.
FEBRUARY 16, 2006
fil Proes, Floodway Data, limited Detailed Flood Hazard Data, and/or Summary of Stillwater
agencies, and/or other sources. The primary basis for this FIRM is aerial imagery acquired by
Elevations tables contained within the Flood Insurance Study (F15 that accompanies
Dupl,n 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
CFFt CrsvE DArE(51 # REV1SrOtWS) 70 7Hs5 PANEL
geospatial data supplied by the local community(ies) that met FFMA base map specificalrorrs
showing the layout of ma p panels, community map repository addresses, and a Listing of
Report
this FIRM. Users should be aware that BFEs shown on the FIRM represent rounded
were considered the preferred source for development of the base map. Soo goospatol
Communities table containing National Flood Insurance Program dates for each community
whole foot elevations. 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 ttic panels on which each community is located.
only and should not be used as the sole source of flood elevation information. Accordingly,
preparation.
flood elevation data presented in the FIS report should be utilized in conjunction with
If You have questions about this map. or questions conccming the National Flood
the FIRM for purposes of construction and/or floodpiain management.
Base reap features shown on this map, such as corporate limits, are basod on the
Insurance Program in general. please call1-877-FERIA KAPil-87-7-336-2627jor visit the
BoundaRes of regulatory floodwrtys 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.00v_
For community map revision history prior to statewide mapping, refer to the Community Map
by detailed methods were computed at cross sections and interpolated between cross
limits may have occurred since this map was published. Map users should
History mole located in the Flood Insurance study report for this jurisdiction.
setions The floodways were based on hydraulic co s'ae auregard nswi[hto re uirequirements
consult the appropriate community official or website to verily current ofAn
accom�nNn9 Flood Insurance Study report, of Map { LOMR) or Letter
of the National Flood Insurance Program, Floodway widths and other pertinent Floodway
jurisdictional boundaries and base map features. This map may contain roads that were
of Map Amendment (LOMA) revising portions of this panel, and digital versions of this
'I'o determine if flood insurance is avallabke in this community, contact your insurance agent the
data for flooding scwrces 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 Berth Carolina Floodplain flapping Programs website
Huth Carolina Division of Eme%"i y NUna ,moment or the National Flood Insurance Program at the
for Hooding sources studied by limited detailed methods are provided in the FIS report
created during the production of this statewide format FIRM.
at www.ncfloodma s.cam, or contact the FEINA flap Service Center at 1-800-35S-m6
following phone numbers or website-
,-for this jurisdiction. The FIS report also provides instructions for determining a Hoodway
for information on all related products associated with this FIRM. The FEMA Map Service
NC Oivisicm cal EmcrrW.ncy Management National Flood Inwrarxx Program
using non -encroachment widths for flooding sources studied by limited detailed methods.
Center may also be reached by Fax at 1 8W 359 9620 and its website at www,mse.feme.gov.
(919) 715-MM www.ncx:rimttxmtral.org/nftp 1-8W--638--662O www.ferna.Rtn01fiip
1114141:1010�
SPECIAL FLOOD HAZARD AREAS (SFt-1As) SUBJECT TO
INUNDATION BY THE 1 % ANNUAL. CHANCE FLOOD
The 1 % annual chance Flood (1[lti`year (body, 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
FloM Ha:rard Area is the area subject to flooding by the 1% annual chance flood. Areas
of Special Flood Hazard incluck Zones A, AE, AH, AO, AR, A99, V, and VE. The Base
Mx -id Elevation is the water surface elevation of the 1% annual chance. fl(md.
ZONE A No Manse Flood Elevations determined.
ZONE AE Baer Flood Fk-.n. tonne drscrrrninvd.
ZONE AH Flood depths of 1 to 3 feet (usually areas of pondirW; Base Flood
Elevations determined.
ZONE AO Flood de+of 1 to 3 feet (usually sheet flaw on stoping terrain);
average depths determined. For areas of alluvial fan flooding, velocities
also determirwoml.
ZONE Alt Special Flood Hazard Area formerly protected from the 1% annual
chance flood by a Flood control system that was subsequently
deoertified. `!_one AR indicates that the former flood control system is
being restored to provide protection from the 1 % annual chance or
greater flrtod.
ZONE A" Area to be protected from 1 % annual dunce flood by a Federal
flood protection system under construction; no Base flood Elevations
determined.
ZONE VE Gmstsl flood zone ►with vdmity harard (wave action); Base Fiord Eevations
determined.
® FI.0013WAY AREAS IN ZONE AE
The fioodway is the channel of a stream plus any adl'aw.nt flavdptain 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 Arras of 0.2% annual chance fiord; arras of t % annual chancy flcxxf
with average deptfts of Iess than 1 foot or with drainage areas less than
square mile; and areas protected by levers from 1 % annual chance Is
01 HER AREAS
ZONE X Areas detLmsoned to be outside tic 0.2% annual rharim (6odptain.
ZONE D Areas in which flood hazards are undetermined, but possible.
® COASTAL HARRIER RESOURCES SYSTEM (CBRS) AREAS
GI HERW15E PROT CFED AREAS (Opts)
CBRS areas and OPAs are normally located within or adjacent to Spacial Flood Hamrd Auras.
1% annual 64me flcxxiplain lxxnxlary
0.2% annual thane (k)odplain boundary
Floodway boundary
Zone D
������������►�►�►��� CBRS n Boundary d OPAboundary
Boundary dividing Special I'tood Hazard Area Zones and
boundary dividing Special Flood Hazard Arens of different
Base Flood Elevalions, flood depths or flood veiocltie;.
�---_ �513---- Base Fkrod Elevation line and value; elevation in feet*
(EL 987) B'x' FIcrcxi Ekwation value where uniform within zone;
elevation in feet'
• Referenced to the North American Vertical Datum of 1988
cox Cross section firm
23 - - - - - - 23 Tranwd line
91.07' 30-, 32.22. 30• Geographic coordinates referenced to tt+e North American
Datum of 1983 (NAD 83)
4278r *hO 2000-meter unkwsal 'I ransverse Mercator grid ticks, zone 1 B
1477 54D FEET 5000-foot grid values: North Carolina Smote Plante coordinate
system (FIPSZONE 32W, State Plane NAD 83 Fex:tl
BM5510 North Carolina Ceodedr Survey bench mark (.s" explanation
X in the Datum Information section of this FIRM par*O.
BM5610 National Geodetic Survey bench mark (see explanation in
0 the Wtum information spolon of this FIRM panel).
a M1.5 Ri%*r Mile
Z&
GRID !NORTH
MAP SCALE 1" - 1000' (1 : 12,000)
5000 0 1000 2000
i FEET
!METERS
300 0 300 600
I -
a PANEL 3424J
FIRM
FLOOD INSURANCE RATE MAP
NORTH CAROLINA
co
PANEL 3424
(SCE LOCATOR DAGRAM OR MAP INM- FOR FIRM
PANEL LAYOUT)
CONTAINS:
CDmmu4fTY CD No. PANEL SUFFIX
OUPLN COUNTY 370083 3424 J
Notice 10 Uler• The Yelp Number she" Wow mould be .,sad
when pleang rttiep ardsrs: vale Coaftnity Number shown
above should be used w +nswanx appl,_:,:,-[n: W the Subject
corInuniy.
EFFECTIVE DATE MAP NUMBER
FEBRUARY 16, 2006 3720342400J
r a
r ti
F 4
F -
ti
t
State of North Carolina
Federal Emergency Management Agency

Docv&gn Envasope 10 01FMC1-6QAD-435A-A4F1-38F9C5870303
ROY COOPER
Gowyn-ir
ELIZABETH S. BISER
secretary
S. DANIEL SMITH
Oirecr,x
Tyler Price
Price Farms
10 18 N. NC 11 and 903
Kcnansvillc, NC 28349
Dear Tyler Price:
NORTH CAROLINA
EnvironnenAW QvWiry
July 14, 2021
Subject: Certificate of Coverage No. AWS31,0093
Price Farms
Swine Waste Collection, Treatment.
Storage and Application System
Duplin County
In accordance with your change of ownership request, we arc hereby forwarding to you this Certificate of
Coverage (COC) issued to Tyler Price, authorizing the operation of the subject animal waste management
system in accordance with General Permit AWGIOOOOO. Please read this COC and the enclosed State
General Permit carefully.
This approval shall consist of the operation of this system including, W not limited to. the management
and land application ofanitnal wastcasspccificd in the facility's Certified Animal Waste hianagcmcnt Plan
(CAWMP) for Price Farms, located in Duplin County, with a swine animal capacity of no greater than the
following annual averages:
Wcan to Finish: Feeder to Finish: 4340 Boari Stud:
Wcan to Feeder Farrow to Wean: Gilts:
Farrow to Finish: Farrow to Feeder: Other.
If this is a Farrow to Wcan or Farrow to Feeder operation, there may be one boar for each 15 sows. Whem
boars art: unneemary. 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 the date of issuance until September 30, 2024 and shall hereby void
Certificate of Coverage Dezember AWS310095 previously issued to this facility. Pursuant to this COC, you
are authorized and required to operate the system in conformity with tic conditions and limitations as
speciFed in the General Permit, tie 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 rcquim a modification to the CA WMP and this
COC and must be completed prior to actual increase in either wastcwater flow or number of animals.
You are encouraged to ugdatc your Swine Odor Contml Checklist usin--,_the enclosed form. if you do so.
you must send a colly of the updated form to the Animal Feeding_Qperations N)gram at the address below.
Please ray careful attention to the record keetfin-,= and monitorine conditions in this aennit. Stoekine and
Nfortality Form 4STOCK- I I has been updated: all other record keeping farms arc unchanged with this
General Permit. Please use the most curn:nt record kcepinu forms.
�& North Curotinu Dmartmmt of EnYkwmenld Quity i Oiv W n+of wafer ttrsouraes
�,/ 512 North Salsbury $dote 1 1636 MW Service C&Mer I Rsk 91% Worth Carolina 27b" 1636

DocuSaon Envasope 10 01FMCI-6DAD-435A•A4FI-3BF9C5870303
If your Waste Utilization Plan (WUP) has been developed rased on site -specific inlomtation, 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
tinder this permit convey any property rights in either real or personal property.
Per 15A NCAC 02T .1304 and MRCS standards a 100-foot separation shall be maintained hCjWCC'n 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 speeifiied in this COC. the General Permit
or the CAAINIP may result in the revocation of this COC, andw penalties in accordance with NCOS 143-
215.6A through 143-215.6C including civil penalties, criminal penalties. and injunctive relief.
If any parts, requircmcnis, or limitations contained in This COC arc unacceptable, you have the right to
apply for an individual permit by contacting the Animal Fending 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 11.23 of the General Pcrmit, waste application shall cease within Melvc (12)
hours of the time that the National Alcathcr Service issues a Hurricane Warning, Tropical Storm Warning,
or a Flood WatcltfFlaslt Flood Watch associated wide 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
NewporLi'Morehead City, NC National Weather Service office at [phone], or by visiting their
wcbsitc at: www-wcalhcr.gavlmhxi
This facility is located in a county covered by our Wilmington Regional Office. The Regional Office staff
may he reached at 910-796-7215. If you need additional information conccming this COC or the General
Permit, please contact the Animal Feeding Operations Program staff at [phone].
Sincerely,
tiocn3�nt+va by:
�a�1s�c.
for ' 13(1 cfa�`r iith
Director. Division of NV'
ter Resources
Enclosures (General Permit AWG 100000)
cc: (Certificale of Coverage Only for all CC$)
WiIinington Regional Office, Water Quality Regional Operations Section
Dupfin County Health Department
Duplin County Soil and Water Conservation District
Central Files (Permit No. AWS310095)
Laserfiche (Permit No. AWS310095)
Pre-stagc Farms Inc
� A Mw 1h Caarolinu tkyartreent of Envkwmeaaat QuAty i DMWvn oF► 4W Rcsuwces
$12 North Salhbury SM" 1 1636 Marl Servke Center I RA491% NoMh Carolina 27b" 1636

WASTE UTILIZATION PLAN
Thursday, November 12, 2020
Producer,
OR Blitzarif
Farm Name:
5t
,v J e
14" N NC 16 & 903
Kenansnite,NC 28349
Telephone #
2 71-
Type of Operation :
Feeder to Finish shine
Number of Animals :
434C hogs design cap3tily
New U GJA ell —
Application Method: irrigation l
The waste from your animal facility must be land applied at a specified rate to prevent
pollution of surface and/or groundwater The plant nutrients in the animal waste should be
used to reduce the amount of commercial fertilizer required for the crops in the fields where
waste is to be applied. This waste utilization plan uses nitrogen as the limiting nutrient.
Waste should be analyzed before each application cycle. Annual soil tests are strongly
encouraged so that all plant nutrients can be balanced for realistic yields of the crop to be
grown.
Several factors are important in implementing your waste utilization plan in order to maximize
the fertilizer value of the waste and to ensure that it is applied in an environmentally safe
manner, Always apply waste based on the needs of the crop to be grown and the nutrient
contents of the waste. Do not apply more nitrogen than the crop can utilize. Soil types are
important as they have different infiltration rates, leaching potentials, cation exchange
capacities, and avaialable water holding capacities. Normally waste shall not be applied to
land eroding at greater than 5 tons per acre per year. With special pre -cautions, waste may
be applied to land eroding at up to 10 tons per acre per year. Do not apply waste on
saturated soils, when it is raining, or when the surface is frozen. Either of these conditions
may result in runoff to surface waters which is not allowed under DEM regulations. Wind
conditions should also be considered to avoid drift and downwind odor problems- To
maximize the value of the nutrients for crop production and to reduce the potential for
pollution, the waste should be applied to a growing crop or applied to bare ground not more
them 30 days prior tv planting. Injecting tine waster os, 0isking will wn5ervu r iut{ iants end
reduce odor problems. This plan is based on waste application through irrigation for this is
the manner in which you have chosen to apply your waste. If you choose to inject the waste
in the future, you need to revise this plan. Nutrient levels for injecting waste and irrigating
waste are not the same.
The estimated acres needed to apply the animal waste is based on typical nutrient content for
this type of facility. Acreage requirements should be based on the waste analysis report from
your waste management facility. Attached you will find information on proper sampling
techniques. preparation, and transfer of waste samples to the lab for ananlysis. This waste
utilization plan, if carried out, meets the requirements for compliance with 15A NCAC
2H.0217 adopted by the Environmental Management Commission.
Page 1 of 9

AMOUNT OF WASTE PRODUCED PER YEAR (gallons. ft3, tons, etc.)
4340 hogs X 1.9 tans wastelhogslyear = 8246 tons
AMOUNT OF PLANT AVAILABLE NITROGEN (PAN) PRODUCER) PER YEAR
4340 hogs X 2.3 lbs PANlhogsiyear = 9982 PAN/year
Applying the above amount of waste is a big job. You should plan time and have appropriate
equipment to apply the waste in a timely manner.
The following acreage will be needed for waste application based on the crop to be grown,
soil type and suface application.
TABLE 1 : ACRES OWNED BY PRODUCER
TRACT FIELD SOIL TYPE &CLASS- CROP YIELD LOS AW COMM ACRES LOS AW APPLIC.
DETERMINING PHASE CODE I41ACRE NJACRE USED TIME
4202 1 KCSOCO0.2% BC 5 253 v 3.91: 989.231 MAR•5Ei'
202 1 k{JB0000-296 SG 1 -_51 0 3.81 l$5.5�51 P-1MY
4- - I—
4202 2 NOBOCa 0.2% BC 5 5 253 0 3.73 943.69 KIARSEP
4202 2 - i"l08000 0-29� SG - 1 50 - 0 3. 186.6 SEP-IIAY
4203 • N1 AUTRYVILLE ALL C 132 102.96I 0 4.93 507.5931 FES 15•JUN
1 4203 . • N1 AUTRYVILLE ALL - 11Wi 90 104.4� - 0. 4.93 514M SEP APR
4203 Ni ALITRYVILLE ALL SB 25 100 4 4.93 493 APR-SEp 15
4203 N2 LUCY 0.596 C 123 95.941 01 4.73 453.7961 FEB 15,1UN
4203_ N2 LUCY 0.5% - - - W 83 91.3 0 4.73 431.845 SEP-APR
4203 l• N2 LUCY 0-5% - S13 33 132 0 4.73 624.36 APR•SEP 15
42M !• N3 LUCY 0-5% j C - 123 95.94 0 4.93 472.984 I/►AR4UN
4203 * N3 UCY 0-5% W 83 91.3' 0 4.93 4W-109j SEP APR
4203 • K3 ILUCY 0.5% 58 _ 33 132. 0 4.93 650.76iAPR-SEP 15
- 4202 PA UTRYVILLE ALL C 132 102.96 0 17.81 1833.721 FES 15-J_UN
4202 PA UTRYV1LLE ALL -- WA 1 T 100 0 17AH 17811 SEP-ARP
4202 PA IAUTRYVILLE ALL - 5B 30 119-4 01 17.81 2126.51 APR-SEP 15
-- -- - _ ..
4202 PB GUI_D5$OR(] D-2'ir. $A 4.125 210.375 0 i5�e "J2i0.32 APR-AUG
420Q PS JGDLDSBoR0 0.2% � WA 11 - 1 DD 0 t 5-261 1526 SEP-ARP
TOTALS. 12221.4
k Indicates that this field is being overseeded (i.e_ interplanted) or winter annuals follow
summer aruivai5.
` Indicates a Crop Rotation
NOTE: The applicator is cautioned that P and K may be over applied: while meeting the N
requirments. Beginning in 1996 the Coastal Zone Management Act will require farmers in
some eastern counties of NC to have a nutrient management plan that addresses all
nutrients. This plan only addresses Nitrogen.
Page2of10

TABLE 2: ACRES WITH AGREEMENT OR LONG TERM LEASE
(Agreement vnth adjacent landowners must t o attached-)
(Required only if operator does not own adequate land. See required specifications 2.)
There are no Acres Leased
Indicates that this field is being overseeded (i.e- interplanted;) or winter annuals follow
summer annuals.
i Indicates a Crop Rotation.
" Acreage figures may exceed total acreage in field due to overseeding.
"Lbs AW N (animal waste nitrogen) equals total required nitrogen less any commercial
nitrogen (COMM N) supplied.
The following legend explains the crop codes used in TABLES 1 and 2 above:
CROPCODE CROP
c
CORN
SC
W BRID BERMUDAGRASS-CONTROLLED GRAZED
sc
SMALL GRAfN OVERSEEDED
SB
SOY6EANS
SA
1 SUMMER ANNUALS ----- -- --
V1,
I WHEAT
WA
1%IINTER ANNUALS
UNITS LBS lMRJNIT
BUSHELS 1.23
- TONS 50 -
AC
8USHELS 4
�_ .. AO
i
IDD i
Page 3 of 10

TOTALS FROM TABLES 1 AND 2
ACRES LBS AW
N USEO
TABLE 1
TOTALS: 56.3 12,2
AMOUNT OF N PRODUCED: 9,982
"'BALANCE .2,239
"*k This number must be less than or equal to 0 in order to fully utilize the animal waste N
produced.
Acres show in each of the preceeding tables are considered to be the usable acres excluding
required buffers, filter strips along ditches, add areas unable to be irrigated, and perimeter
areas not receiving full application rates due to equipment limitations. Actual total acres in the
fields listed may, and most likely will lie, more than the acres shown in the tables-
NOTE- The Waste Utilization Plan must contain provisions for periodic land application of
sludge at agronomic rates. The sludge will be nurtunent rich and will require precautionary
measures to prevent over application of nutrients or other elements. Your production facility
will produce approximately 1605.8 pounds of plant available nitrogen (PAN) per year in the
sludge that will need to be removed on a periodic basis. This figure is PAN when
broadcasting the sludge- Please be aware that additional acres of land, as well special
equipment, may be needed when you remove this sludge.
See the attached map showing the fields to be used for the utilization of waste water_
APPLICATION OF WASTE BY IRRIGATION
The irrigation application rate should not exceed the intake rate of the soil at the time of
irrigation such that runoff or ponding occurs. This rate is limited by initial sail moisture
content, soil structure, soil texture, water droplet size, and organic solids. The application
amount should not exceed the available tivater holding capacity of the sail at the time of
irrigation nor should the plant available nitrogen applied exceed the nitrogen needs of the
cro p.
Your facility is designed for 180 days of temporary storage and the temporary storage must
be removed on the average of once every 5.92 months. In no instance should the volume of
waste being stored in your structure be within 1.6 feet of the top of the dike -
if surface irrigation is the method of land application for this plan, it is the responsiblity of the
producer and Irrigation designer to ensure mat an irrigation systern is installed to propeNy
irrigate the acres shown in Tables 1 and 2. Failure to apply the recommended rates and
amounts of Nitrogen shown in the tables may make this plan invalid.
The following table is provided as a guide for establishing application rates and amounts.
TRACT
FIELD
SOIL TYPE
4202
NOBOCO 0-rA
;4202
NOBOCO 0-2%
1.2 — -
202
GOLDSBORO 0.2%
GOLDSBORO 0-29A - -
AUTRYMLLE ALL
UTRY%ALLE ALL -
-N
-Ph
•PA
02
Q2
:4202
202
•i'A
•Z3x, •K'a
AUTRYVIULE ALL
LUCY 0-5%
203
4203
- •NR, -W3 - —
LUCY D•5% -
43 -
-N2, W
LUCY 0.5%. -
03
'NI - - -
UTRYVILLE ALL
03
'NI
AVrRYVILLE ALL
_ •NI
03
RYVILLE ALL
APPLICATION APPLICATION
CROP RATE Linftl AMT (inches)
-
5G
0.00�
0.00
0.50
0.50
•1
�01
•1
•1
—aC
WA
SA
WA
040
0.60
0.60
0.60
- 0.60
--- 0.60
0.60
'1
as _
W
SST
C --
tiv
5B
C --
01 I
91
'1
•1
'1 1
0.60
•1
Page 4 of 10

" This is the maximum application amount allowed for the soil assuming the amount of
nitrogen allowed for the crop is not over applied. In many situations. the application
amount shown cannot be applied because the nitrogen ]irritation. The maximum
application amount shown can be applied under optimum soil conditions.
Page 5 of 9

NARRATIVE OF OPERATION
Pane 6 of 9

PLANS & 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. illegal discharges are subject
to assessment of civil penalties of $10,000 per day by the division of Water Quality for every
day the discharge continues.
2. The Field Office must have documentation in the design folder that the producer either
owns or has long term access to adequate land to properly dispose of waste. If the producer
does not own adequate land to properly dispose of waste, he small provide NRCS with a copy
of a written agreement with a landowner who is within a reasonable proximity, allowing
himfher the use of the land for waste application for the life expectancy of the production
faci€ity. It is the responsibi*1 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, climate conditions, and level of
management, unless there are regulations that restrict the rate of application for other
nutrients.
4. Animal waste may be applied to land that has a Resource Management System (RMS) or
an Alternative Conservation System (ACS), If an ACS is used the soil loss shall t>e no greater
than 10 tons per acre per year and appropriate filter strips NvilI be used where runoff leaves
the field. These filter strips will be in addition to "Buffers" required by DEM. (See FOTG
Stantard 393 - Filter Strips and Standard 390 Interim Riparian Forest Buffers)_
5. 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.
6. When animal waste is to be applied on acres subject to flooding, it +mli 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" in the NRCS Technical Reference -
Environment file for guidance.)
'T. Llquld waste sriall be applied at tales nut 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 conditions
conducive to odor or flies and to provide uniformity of application.
8. Animal waste shall not be applied to saturated soils, during rainfall events, or when the
surface is frozen.
9. Animal waste shall be applied on actively growing crops in such a manner that the crop is
not covered with waste to a depth that would inhibit growth.
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 he applied more than 30 days prior to planting of a crop on bare soil.
11. Any new swine facility sited on or after October 1, 1995 shall compiy 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 anv oerennial stream or river (other that an irrigation ditch or canal_ Animal waste
Page 7 of 9

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 landownwer.
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 croplands
provided they have been approved as a land application site by a "technical specialist
Animal waste should not be applied on grassed watenvays that discharge directly into water
courses. except when applied at agronomic rates and the application causes no runoff or drift
from the site
"16. Domestic and industrial waste from washdown facilities, showers, toilets, sinks, etc.,
shall not be discharged into the animal waste management system
'17. A protective cover of appropriate vegetation will be established on ail disturbed areas
(lagoon embankments, berms, pipe runs, etc.). If needed, special vegetation shall be
provided for these areas and shall be fenced, as necessary. to protect the vegetation.
Vegetation such as trees, shrugs, and other woody species, etc. are limited to areas where
considered appropriate. Lagoon areas should be kept mowed and accessible. Lagoon berms
and structures should be inspected regularly for evidence of erosion. leakage or discharge.
*18. If animal production at the facility is to be suspended or terminated, the owner is
responsible for obtaining and implementing a "closure plan" which will eliminate the possibility
of an illegal discharge, pollution and erosion.
' 19. Waste handling structures, piping, pumps, reels. etc.. should be inspected on a regular
basis to prevent breakdowns, leaks, and spills. A regular maintenance checklist should be
kept on site_
20. Animal waste can be used in a rotation that includes vegetables and other crops for direct
human consumption. However_ if animal waste is used on crops for direct human
consumption, it should only be applied as a preemergence with no other applications of
animal waste during the crop season.
*21. Highly visible markers shall be installed to mark the top and bottom elevations of the
temporary storage (pumping volume) of all waste treatment lagoons. Pumping shall be
managed to maintain the liquid level between the markers. A marker will be required to mark
the maximum storage volume fpr 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 soils shall be monitored and alternative crop sites
shall be used when these metals approach excessive levels. pH shall be adjusted for
optimum crop production amd maintained. Soil and waste analysis records shall be kept for
five (5) 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 Department of
Agriculture regulations.
Liquid Systems
Page 8 of 9

NAME OF FARM: Stevens Farm 10-15 31-95
OWNER 1 MANAGER AGREEMENT
I (we) understand and Swill follow and implement the specifications and the operation and
maintenance precedures estalished in the approved animal waste utilization plan for the farm
named above. I (we) know that any expansion to the existing design capacity of the waste
treatment and/or storage system or construction of new facilities will require a new utilization
olan and a new certification to be submitted to DEM before the new animals are stocked -
I (we) understand that I must own or have acres to equipment, primarily irrigation equipment.
to land apply the animal waste described in this waste utilization plan. This equipment must
be available at the appropriate pumping time such that no discharge occurs from the lagoon
in a 25-year 1-day storm event. 1 also certify that the waste will be applied on the land
according to this plan at the appropriate tunes and at rates that no runoff occurs_
NAME OF FACILITY OWNER: OR Blizzard
Z0
SIGNATURE:' F �: _ DATE: —Z -
NAME OF MANAGER (if different from owner):
SIGNATURE:
please print
DATE:
NAME OF TECHNICAL SPECIALIST: Curtis Barwick
AFFILIATION: Barwick Ag Services
ADDRESS (AGENCY): 103 Country Club Circle
Clinton, NC 28328
Llr;q
1 O] . 85-1000
SIGNATURE: DATE:
Page 10 of 9

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County:== Duplin
Date.===- _L:_ --- ___ :
10/07/03
Dist.to nearest residence (other than owner):
0 ft.
saws (farrow to finish):===
sows (farrow to feeder):eder};-==
head (finis'ftinrg only)-===
1850
sows (farrow to wean):==== -
head (wean to feeder):-===_
Ave. Live Weight for outer operations(Ibs.)=a
Storage volume for sludge accum. (cu. ft.):=>
Treatment Volume (min 1 cu. fLAb.)=======,
1.0
25 Year - 24 Hour Rainfall
7.5
Rainfall in exc*ss of evaporation (in.)=====7
7.0
Drainage area of buildings & lots (sq. ft.)=>
Volume of wash wafer (rgaItonsfday)====______�
Temporary storage period (days)=============>
180
Freeboard
1.0
Side slopes (inside lagoon):================>
2-5 : 1
Inside top length
209.5
Inside top w3d7h (f!
233.0
Top of dike elevation
44-0
Bottom of lagoon elevation (ft.):===========>
31.0
Seasonal high water table(SHWT) elev.(ft.):=a
37.0
Total required volume:===== -____-_ 371403
cu. ft.
Actual design volume:=====_ --- _ - - 418212
cu. ft.
Stop pumping el.(> or = to 37.0 ft,SHWT)>
39.0 ft.
(> or = to 37.0 ft-Min.)
Required minimum treatment volume- 251100
cu. ft.
Volume at stop pumping elevation- 248475
cu. ft.
Start pumping elev.:w====_________________•
42.4 ft-
Volume of start pumping elevation: 388360
cu. ft-
Actual volume less 25yr-24hr rain: 38T704
cu. ft.
NOTE: Verify that temp. storage is adequate:
R"_ volurr,H to be pisrn ed - => 89795
cu. ft.
Actual volume to be pumped:==> 139885
cu. ft.
If
(00

operator:
County:
Date : ­ - � = = -- �=_w / 02 J 95
Dist. to nearest residence(other than owner): ft.
sows (f a r row to f i n I sh) >
sows ( farrow to feeder) . W----_ ----------____�
head (finishing only) .=-===-_=
sows ( farrow to wean):--- ---
head �___==__-Y-��
(wean to feeder) .-------- =$___- ��
Ave. Live Weight for other operations(lbs.):>
Storage volume for sludge- accum. (cu. ft.) :->
Treatment Volume (min. 1 cu. ft./lb.):===-===>
25 Year - 24 Hour Rainfall
Rainfall in excess of evaporation ( i.n.) -- =->
Drainage az au :.f {���.y�
Volume of wash water (gal lons/day)==-- - ==>
Temporary storage period (days). ---_-- -_�-_�
Freeboard
side slopes (inside lagoon).---_____
Inside top length (ft.) . -__-----��x===-•L-�
Inside top width {ft.}._---_---------���---,
Top of dike elevation
Bottom of lagoon elevation
0!bD
1.0
7.0
180
1
Seasonal, high water table(SHWT) elev. (ft_-
Total required volume:=----______=-> 71403 p.
Actual design volume:===========--_> 418212�cu.
Stop pumping el. (� or to 0.0 f SHW-f>
(> or - to 37.0 ft Min)
Required minimum treatment volume: 251100 cu.
Volume at stop pumping elevation:-250033 cu.
start pumping
Volume at start pumping elevation:-250033 cu. ft.
Actual volume less 25yr-24hr rain: 387704 cu. ft.
NOTE: Verify that temp. storage is adequate:
Req. volume to be pumped:--=-> 89795 cu. ft.
Actual volume to be pumped:=�> 0 cu. ft.
2.5 1
209.5
233
44
31
ft.
ft.
ft.
ft.
ft.
ft.

county: - Duplin
Date:,===
10107M
Dist.t❑ nearest residence (other than owner)_
0 ft.
sows (farrow to finish):-== ====____ __-=__==,
sows (farrow to feed er)=eder}
head (finishing only):===__ ____-__--__---_--
2480
sows (farrow to wean):===__
head (wean to feede0*.====_
Ave. Live Weight for other operationobs.)=>
Storage volume for sludge accum. (cu. ft.):=>
Treaiment Volume (min. 1 cu. ft.Ab.)=======
1.0
25 Year - 24 Hour Rainfall (in .)===_========>
7.5
Rainfall in excess of evaporation (in .)= ====>
7.0
Drainage area of buildings & lots (sq. ft.)=>
Volume of wash water
Temporary storage period (days)===========>
78
Freeboard
1.0
Side slopes (nside lagoon): ==---=a===-=--=>
1.5 : 1
Inside top length
323,0
Inside top width
167.0
Top of dike elevation (ft.):=--
50.9
Bottom of lagoon elevation
40.4
Seasonal high water table(SHWT} elev.(ft.)->
0.0
Total required volume:===== ------_ - 435408
cu. ft. [p
Actual design volume:====== ___ =M==_ 435611
cu. ft.
Stop pumping el.(> or = to 0.0 ft.SHW )>
47.9 ft.
(, or = to 46A ft.Min.)
Required minimum treatment volume: 334800
cu. ft-
Volume at stop pumping elevation_ 333531
cu. ft.
Start pumping Ytev.:===_____=_ --===----=====y
49.3 ft.
Volume at start pumping elevation: 404383
cu. ft.
Actual volume less 25yr-24hr rain: 401898
cu. ft.
NOTE: Verify that temp storage is adequate-
Req. volume to be pumped:-'===> 66895
cu. ft.
Actual volume to be pumped:=-� 70853
cu. ft.

Operator:-,.�r�� l_ ` ..==s�=w_W >Blir-ard
County>Duplin
Date.---- ____ w__- _w=-�=_�- �_;__>>05 / 02 / 95
Dist. to nearest residence(other than.owner): ft.
sows (farrow to finish) :-----------=:===--=>
sows (farrow to feeder) : - =----_==__W-ti= :_= ->
head (finishing only)
2480
sows (farrow to wean)
head (wean to feeder) .-------_------ -� - _---->
Ave. Live Weight for other operations(lbs.):>
Storage volume for sludge accum. (cu. ft.):=>
Treatment Volume (min. 1 cu. ft.1lb.):+®=—>
1.0
25 Year - 24 Hour Rainfall (in.)
7.5
Rainfall in excess of evaporation (in.)= ===>
7.0
Drainage area of buildings & lots (sq. lt.):>
Volume of wash water (gallons/day)-==-___,__>
Temporary storage period (days):====_�--�-�_>
78=
Freeboard
Side slopes (inside lagoon)
1.5 .
Inside top length (ft.) .---_-_--_--_----_->
323
Inside top width (ft
167
Top of dike elevation
50.9
Bottom of lagoon elevation (ft.}:====__==__->
40.4
Seasonal high water table(SHWT)
Total required volume:435408 U. ft.
Actual, design volume:cu. ft.
Stop pumping el. (> or = to SHWT>
(> or = to 46.4 ft Min)
Required minimum treatment volume: 334800 cu. ft.
Volume at stop pumping elevation:-748149 cu. ft.
Start pumping
Volume at start pumping elevation:--748149 cu. ft.
Actual volume less 25yr-24hr rain: 401898 cu. ft.
NOTE: Verify that temp_ storage is adequate:
Rey. volume to be pumped:=---> 66895 cu. ft.
Actual volume to be pumped:==> 0 cu. ft.
}
1
ft.
ft.
1

EMM.3ENCY ACTION PLAIN
PHONE NUMBERS
DIVISION OF WATER QUALITY (DWO) (9 t O)395-3900
EMERGENCY MANAGEMNET SERVICES (EMS) [phone]
SOIL AND WATER CONSERVATION DISTRICT (SWCD} (9101296-2120
NATURAL RESOURCES CONSERVATION SERVICE (MRCS) (9101296-2121
COOPERATIVE EXTERSION SERVICE (CES) (9101296-2143
This plan will be implemented in the event that wastes from your -operation are leaking,
overflowing or running off site. You should not wait until wastes reach surface waters
or leave you property to consider that you have a problem. You should make every
effort to ensure that this does not happen. This plan should be posted in an accessible
location for all employees at the facility. The following are some action items you should
take.
1. Stop the release of wastes. Depending on the situation, this may ore may not be
possible. Suggested responses to Some possible problems are listed belwo.
A, Lagoon overflow -possible solutions are:
a. Add soil to berm to increase elevation of dam.
b. Pump wastes to fields at an acceptable rate.
c. Stop all flows to the lagoon immediately.
d. Call a pumping contractor.
e. Make sure no surface water is entering lagoon.
B. Runoff from waste application field -actions include:
a. Immediately stop waste application.
b. Create a temporary diversion to contain waste.
c. Incorporate waste to reduce runoff.
d. Evaluate and eliminate the reason(s) that cause the runoff. .
e. Evaluate the application rates for the fields where runoff occurred.
C. Leakage from the waste pipes and sprinklers -action include:
a. Stop recycle pump.
b. Stop irrigation pump.
c. Close valves to eliminate further discharge.
d. Repair all leaks prior to restarting pumps.
D. Leakage from flush systems, houses, solid separators -action include:
a. Stop recycle pump.
b. Stop irrigation pump.
c. Make sure siphon occurs.
d. Stop all flows in the house, flush systems, or solid separators.
E, Leakage from base or sidewallof lagoon. Often this is seepage as opposed
to flowing leaks -possible action:
a. Dig a small sump or ditch from the embankment to catch all
seepage, out in a submersible pump, and pump back to lagoon.
b. If holes are caused by burrowing animals, trap or remove animals and fill
holes and compact with a clay type soil.
c. Have a professional evaluate the condition of the side walls and lagoon
bottom as soon as possible.

2. Assess the extent of the spill and note any obvious damages.
a. Did the waste reach any surface waters?
b. Approximately how much was released and for what duration?
c. Any damage notes, such as employee injury, fish -kills, or property damage?
d. Dick the spill leave the property?
e. Does the spill have the potential to reach surface waters?
f. Could a future rain event cause the spill to reach surface waters?
g. Are potable water wells in danger (either on or off the property)?
h. How much reached surface waters?
3. Contact appropriate agencies.
a. During normal business hours call your DWQ regional office; Phone - -. After
hours, emergency number: 919-733-3942. Your phone call should include: your
name, facility number, telephone number, the details of the incident from item 2
above, the exact location of the facility, the location or direction of movement of
the spill, weather and wind conditions. The corrective measures that have been
under taken, and the seriousness of the sitution.
b. If spill leaves property or enters surface waters, call local EMS phone number.
c. Instruct EMS to contact local Helath Department.
d. Contact CEs, phone number - , local SWCD office phone number - -, and local
NRCS office for adviceltechnical assistance phone number - -.
4. If none of the above works call 911 or the Sheriff's Department and explain you
problem to them and ask the person to contact the proper agencies for you.
5. Contact the contractor of your choice to begin repair or problem to minimize off -
site damage.
a. Contractors Name:
b. Contractors Addresi
c. Contractors Phone:
6. Contact the technical specialist who certified the lagoon [NRCS, Consulting
Engineer, etc.)
a. Name: V,F0 - MR C-S
b. Phone: qIo-,LIk
7. Implement procedures as advised by DWQ and -technical assistance agencies to
rectify the damage, repair the system, and reassess the waste managment plan to
keep problems with release of wastes from happening again.
2

INSECT CONTROL CHECKUST FOR ANIMAL COPERATION��
Source
Cause
BMP's to Minimac Odor Site Specific Practices
Nqu;d Sysleansi
"Wsh Gutters
Aecwrmlation ar solids
I Tflush systcrn is dosignad and oparaled
sWficialxly to remotro aecumulsiad
solids from guitars as designed.
(44(emow beiclog of accumulated sours at
_ EGscharga .
.agoons and Pits
Grueted Soli6s .�
( ainiain lagoons, settling basins and
Ails wham peso Wood", it apparent tv
"6migo the Crusdnp of solids la a depth
of no mote than 6-8 arches over mnro than
30% of surfeca.
sive Woetatrve
f7eeaving Vegeltiop",
nloin Vg"ta%;Ve control asta4v banks of �~ -
:rowlr�
lagoons and other impoundment9 to prcvenl
accumulation of decaying vtyelalive matter
along waler't edgy on impoundment's perimeter,
INV Systems)
-cdore Feed Spillage i 1 Design operate end maintain feed systorns ie.g_
bunkers and troughs) to ntininije the accu"wial;o"
of decoying wastage.
( 1 Man up spillage on a routine basin Iis. g. 7.10 day
interval during summer; I S.30 day interval d,rring winter)-
'sd Swine
.srinnl eloldrng Areas
:hlc- Novernbcr 11, 1996
ACCumulatrons at toed residues
AacrrmUlationg W orrirrrsi waStat
ant! Iced wastage
{ I Reduce moisture accumulation within and around
immediate perimeter of laad star000 areas b*e
insuring drainage away from site amlor ptav'sd4v
adequate containment {a,g., covered ben for
brewer's gain and sentetar high maistwe grain
producisl.
{ I [aspect for and remove or break up accumulated
. solids to fitter strips around' feud storage ate nacded.
t I eliminate low Brea that Crop moisture .along tans
mind other locations where waste accumulates and
and disturbance by airimeft ii minimal.
(] mairuain fence tours and Mter strips around aramal
holding areas to minirrilrs eterrmulatiom of wastes
G.e. en$0001 for and remove or tweak up accumulated
solids as needadl.

13ry Manure HandknQ Accumulatlone al animol -ones t 1 Restiovt spillage on a routine basis te.Q. 7-10 day
SyStemA interval during surwner: 15-30 days interval during
winter! wNre mt mto is loaded Icr land app6cat.on
at d'spoaaf.
i I Pravido for adequato drai<ruga around Manure stoakpilcs.
t 1 Inspect for and remove ar break up accunviiaied wastes
in lilter stripes around stockpAca and manufc handing
areas as necded.
The issues checked {It/pertain to this operation. The landovrrle(Amergrator agrees to use sound judgment in applying
insect control measures as practical.
t certify the aforementioned insect control Best Manarieinciit Practices have been reviewed with me.
.0 �, —
iandao�w er Si$natvrel
ONAzald Far,
(Farm Name)
(Facility Nu��)
For rnore ipformstion camwct the Cooperative f atension Scrrice. Department of Entomology. 1409 7r,13. rlortli Carolino Stato Univeftity. Raleigh. W:
2769S•76t 3.
AMOC- Novembar 11, 1996

SWINE FARM WASTE MANAGEMENT CQCR CONTROL CHECKLIST
Source Cause BMP's to Minimize Odor Site Specific Practices
Farm.tead Shaine pwdvction
pr frees;
Good iudgr
er wooded buffers;
dad best rmnsgemont
Went and common+ "rise
RrurrW body surfac"
(linty rn*rswo-cawrod eraiinoll
4.� ry floors
rlaor surfagcs
Wrk manuro-covered flows
i7�rSfwted floors;
{441-wrors located ovci Oottod Moors;
[ I Fecdcrs al high end a! solid haws;
wgf manwe buildup from floors:
{ ndertlow ventilation for drying
f.lanure cOnection Pitt
Drina
Frequent rrsanure removal by flush,pit
rechotgo.or scraps
Paritel micorbial decomposition
I Wi(dderdoor vvntilat'oon
Ventilation exhaust fans
Volatile gases;
t Fan maintenance;
Ov%t
I lsicaient air movement
Indoor surfaces
p :st
{ ashdown batwcen groups of animals
{ I Feel additiw%.
{ I Feeder covers:
[ 1 Feed delivery downspout extend*($ to
leader covers
3-Iu.h tanks Agitat;on of recycled lagoon i I Flush tart cogs
liquid whiles tanks are Bing I I Extend fill lines to near bottom of
tanks with onti•siphon vents
Hush af3eys Agitation during wastewater {-f-Ohdorftow flush with underfloor
conveyanance ventilation
I^,r I eettatoe poiu,ts Agitation of recycled lagoon { I Extend taehard fines to near bottom of
liquid white pits ate filling pits with anti -siphon vents
Lift stations Agitation during sump tank fining [ 1 Sump tank covers
and drawdown
Outside drein coRection Aghation during wastowater { I Box co+rsrs
or junction boxes conve"rico
End of drainpipe: at Lagoon Agitation during wastewater tend diseharoe point of pipes
underneath lagoon liquid level
I A000n surfeeos Volatile got ernissionr (44i�rc °r lagoon liquid Capacity
liiologicat mixing C�'C ect lagoon startup procedures
AQitotion (Zee
m svtftcc area-to•volurne ratio
t inimum agitation when pumping
(I Nlcchonacel aeration
{ I Proven biological additives
trrigation apeinklet nozzles High pressure agitation
Wind dieft
AMUC-Rovember 11. 1955
l+IFto on dryddys with litho or no wind
CT mart+ rccommonded operation pressure
{ Purnp intake near lagoon liquid surface
( I Pump from second•stage lagoon

Storage tank or t:esin f rrtsa! rpiainbis! decomposition
(I Ratlam or Midlevel labdino
Surface htixinQ wtitc filling
{ I Tank covers
Aip,_%tion wtroert emptyrng
[ } Sosin sodaco mats of solids
[ ] Proven biological additives or oxidaMS
Setting basis surface Portal rnicobiaf decomposition
[ } Cxtend drainpipe outlets underneath liquid
WiinQ white frilling
tevef
Agitation when emptying
(1 Rennova Bottled solids regularly
Manure. slurry oe sludge Apitation when spreading
( oil injection of slurrylfiludges
spreader outlets Volatile gas emissions
(1,Wash resWust manure from spreader after use
(} Proven biological additives or axidanu
Uncovered rnanuce, slurry Volutilo cmissianse while drying
(KW inlecNoo of slurrylsludges
or sludge an field surfaces
f-fsoil incorporation witWn 48 hours
gegread in thin uniform layers far rapid drying
{ I Proven biological additives a oxidants
Dowd animals Carcass decomposition
proper cl spositioa of carcasses
Dead animal disposal carcass decomposition
( 1 Complete covering of carcasses in burial pits
pits •
() Proper locationlconstructian of disposal pits
Ineinarators Incomplete combustion
( 1 Secondary stack burners
Standing water around improper drainage
+rsdv and IaMscapa such that water draino
facilities Micsabini decomposition of
away tram facifities
orgarie matter
manure tracked onto public Poorly maintained access roads
fffatrn occesF road maintenance
roads from form accoss
Addit+errBi Information:
Available Fearrr
$wine [Mtaztuto h pn*gcmant: 0200 RuloISW Packet
NCSU-County Extension Censor
Swine Production Farm Pats rgial Odor Soureas eyed Remedies. EBAE Fact 6hcet
NCSU-BAE
Swine Production Facility Manta Management: Pit Recharge --Lagoon Treatment: FSAE t 28.88
MCSV-BAE
Swine Production Facility Manure Wnegeamni. Underfloor Ruse --Lagoon
Treatment. EBAE 129.08
HCSU-aAE
Lagoon Oseig and Management for Livestock Manure Treatment and Storage; EBAE 103.83
MCSU-RAE
Calibaatiw► yr fNOnura errd Wostowator Application EgWiprnent; EBAE Farts Sz1%"r,
"MU -RAF
Controlling Odors from Swan Badinos; Ptff•33
MCSU-Swine Extension
Environmomal Atwcone Program:•NPPC Manual
MC Porn Produces Assoc
options for Managing Odor: a report from the Swine Odor Task Face
NCSU Agri Ccmnwnication%
Nuisance Concerns in Animal hManum Mansgement: Odors and fleas; PRO107, 190S Canlarenca Proceedinglx Florida Cooperative Extension
The issues checker! (40ertain to this operation. The landownerfintegrator agrees to use sound judgment in applying
odor control measures as practical.
I certify The aforementioned odor conuo! Best Manaoment Pract;ces have been tevievied v6th me.
6T.
r
(Landowner Sionaturel
AMO --Noye nber I;. 193E

Vetsion—tiny 20. 2023
Mortality Management Methods
Indicate which methods) will be implenwnted.
When selecfiry multiple methods indicafe a primary versos secondary option.
Methods other than those listed must be approved by lhs State Vetorinanan.
Primary SEcondary Routine Mortality
�—y Burial three feet beneath the surface of the ground within 24 hours of knowledge of animal
u death. The burial must be at least 300 feet from any flowing stream or public body of water
(G.S.106403). The bottom of the burial nit should be at least one foot above the seasonal
nigh water table. Attach burial location map and plan.
❑ ❑ Landfill at municipal solid waste facility permitted by NC DED under GS 1SA NCAC
13B .0200.
1� ❑ Rendering at a rendering plant licensed under G.S. 106-168.7.
❑ Complete incineration according to tit NCAC 52C .0102.
❑�'"� j A deemed compostinu3 system according to 15A NCAC 02T .0113 (a)(12) and the NC
; J Department of Agriculture & Consumer Services Veterinary Division's Poultry & Swine
Composter Approval Guidelines. if compost is distributed off -farm, additional requirements
must be met and a permit is required from NC DEQ.
❑ r" j In the case of dead poultry only. placing in a disposal pit of a size and design approved by the
�J NC Department of Agriculture & Consumer Services (G.S.106-549.70).
❑ j—"j Any method which, in the professional opinion of the State Veterinarian. should 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).
❑ Puss 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 (arm -specific mortality man-
agament methods to be used for mass mortality. The NCDA&CS Veterinary Division sup-
ports a variety of emergency mortality disposal options: contact the Division for guidance.
• A catastrophic mortality disposal plan is part of the facility's CAWMP and is activated
when numbers of dead animals exceed normal mortality rates as specified by the State
Veterinarian.
• Burial must be done in accordance with NC General Statutes and NCDA&CS Veterinary
Division regulations and guidance.
Mass burial sites are subject to additional permit conditions (refer to facility's animal
waste management system permit).
• In the event of imminent threat of a disease emergency, the State Veterinarian may enaM
additional temporary procedures or measures for disposal according to G.S. 106-399.4.
Signature of Farm Owner/Manager
5Isnature of Technical Specialist
Date
.3- z 4 -- 2
Bate

OPERATION & MAINTENANCE PLAN
Proper lagoon, liquid management should be a year-round priority. It is especially
:mpo,'tant to manage levels so that you do not have problems donna extended rainy and
wet periods.
Maximus; storage capacity should be available in the lagoon for periods when the
rye?lrlrig crop is dormant (Such as wintertime for berrr.�adagrass) or wizen, there are
extended rainy spells such as the thunderstorm season in the summertime. This Mears
that at the first signs of plant growth in t a later wi-.er/early spring, irrgation according to
a farm waste management plan should be done whenever the line is dry enougr to
receive lagoon liquid. T;^.is will make storage space available ir: the lagoon for future we,
periods. In ;he late summer/early I'M the lagoon s}could be pumped down to the ivw
marker (see Figure �-l) to allow for winter storage. Every iffort should be made to
manna:n the lagoon close to tie Mnimurn liquid level as Iong as the weather and wash
utilization plan will allow it.
Wanting until the lagoon has reached its maximum storage capacity aefore stardrg to
irrigate does not leave room for storing excess water during extended wet periods.
Over; -.ow front the 12eoon for any mason cxccpr a 25-yaa:, 23-hour scorn: is a ria?atipn aF
state lay., and subioct to penrlty actic:z.
The routine rnair,tenance ara lagoon involves tie following:
Maintenance of a vegetative cover for the Cam..
escue or common berrnudagrass are the most cornmoa vegetative
covers. The vegetation should be fertIized each vear, if needed, to
Maintain a vigorous stand. The amount of fertilizer applied should be
based on a soils test, but in the event gnat it is not practical tp obWr:
a soils test each year, the lagoon embankment and surrouncing areas
should be fertilized with 800 pounds per acre o= 10-10-10, or
equivalent.
BrUsn arad tr=s On the embankment rrsst be controllcd. This may be
done by rnowing, spraying, gr=rig, chapping, or a ccrmnbination of
these practices. 7 his should be done at leas: once a year and
possibly twice :n years that weather conditions are favarablc far
heavy vegetative growth.
:VOTE: N vegetation is controlled by spraying, the herbicide rnusr not be allowed to enter
the lagoon water. Such chemicals could harm the bacteria in the lagoon that are treating
the waste.
Maintenance ins_txctions of :He enEre lagoon should be made during the initisl "Wing of
the lagoon and at least mont11Iy and after major rainfall and storm events. Items to be
checked should include, as a minimum, time following:
Wa-qe Inset Pies, Recycling Pipes, and Overflow Pipes ---look for:
i. separation of jo" its
Y. crack; or breaks
14. accumulation of salts or minerais
4. overall condition of pipes

— Lagoon surface ---look for:
j undesirable vegetative growth
2• floating or lodged debris
crr:bankment---look for
I. settlement, cracking, or "jug" holes
2. side slope stability ---slumps or bulges
3- wet ar damp axea.s on tape back slope
4. erosion due to lack of vegetation cr as a result of wave action
S. rodent damage
Langer lagoons may be su-:)jec, to liner damage due to wave action cGssed by strong
u lads. stand These waves Can erode t27e Iagoon sidewal;s, thereby weakening the :agoar
A good St, darn.
of vegtatio;, will reduce the potential damage caused by wave action.
wave action: causes serious damage to a lagoon sidewall, baffles in the lagoon may be
used to reduce the wave impacts,
Any of Chew features Could lead to erasion and weakening of the dam. If your lagoon has
a•'Iy of :hese fearares, vo,t should call an appropriate exrsert familiar with design and
cOnStruction of wage fapons. You may r.c� to P_avf e 4 tcrnporary 1]x i` i.�are =s a threat
of a wash discharge. perm
Howevcx a anent soYut on s,,zouid be rev;ewed by the
:echnicai expe�. Any digging into a xagoon darn with henry equipment is a serious
undenak:ngg w;;h poter, Tally serious consequences and should not be conducted unless
=Cmmended oy am app-op-late teChnTcal exocn.
Tra,-I5`er PUMPS ---check for proper operation of.
recycling purrp5
2. irrigation purrps
Check for leaks, ?apse fitirgs, and overadl :)-mp operation. An unusuallylogu
noise, ar a large arnourn; of vib:atior,, may Ind'
replacement, y te hat the pumpr, rt is ip..d o. eDad Or gir grinding
NOTE. Pumping systems Should be inspected and operated frequently enough so that you
are not completely "surprised,, by equ plment fai,ure. You Should perfv:m your primping
systV,n makltenance a. a tine when your Iagoon is at its low ;evcl. rf ,wily rtie
safety time should mikjor repairs b-- wired. Having a nearly feat lagoon .S Ot th;,54ma to ih;rk about swi,c'�ing, reparing , or borrowing pumps. Probably, if your lagoon is full,
you. neighbor's lagoon :s ful also. You should consider maintaining an inventory of spare
pars o: pumps.
Surface water dive;-sion features are designed tv carry all surface
drainage waters ,such as rainfall runoff, roof drainage, gutter nt+t?ets,
and ua-,king lot runoffs away from your lagoon and other waste
trPa+me t or storage structt:res. The only water tha! should be
coming from your lagoon is that which comes from yoUr flushing
(u'ashing) SYS' m pipes and the rainfall that hits the lagoon dire.^tly.
You should inspect your diversion system for the following:
=. ad:sluatc vcgetatiort
diversion capacity
?4 ridge iaerm height

Idetatiiied problems should be correc-ted promptly. It is advisable to inspe�;t your Systcm
during or immediately following a heavy rain. If technics.; assistance is needed determine praNr 5o'utions, consult with appropriate exper•.s.
You should record the level of the lagoon just prior to whe.:i rain is predicted, and then
record the level again 4 to 6 hours after the rain (assumes there is no pumping), 'his will
give you an idea of how much your lagoon level rise wit.4 a cerain rainfall amount
(you must also be recording your rainfall far this to wark}. Knowing this should help in
irrigationapplications and storage. If your lagoon rises excessively, you may
have an inflow problem from a surface water aiverson or there may be seepage into the
lagoon from the surrounding land.
Lagoon operation
Startup-,
immediately after cor)strucdon establish a CoMplete sod Cover on bare sot:
surfaces to avoid urosior,.
2. Fill new tag0on design u-caunent volume at :cast ha 6e full of water before
wastetaking lording begins, king carc not to erode lifting or bank slopes.
I. Drainp;pes into rate Iagoor should have a flexible pine extender on the
end of the pipe to discharge near the bottom of the fagoon during initial
filling or another Fmmns of siowjng the inco
the lining. ming water to avQ d erosion of
¢. Whet, noss;ble, begin loading new Iagoons in the spring to maximize
bacterial establishment (due to warmer weather}.
5. It is reuDmmerdrd t.ta: a new lagoon be scede,,j with Sludge from a heathy.
working swine lagoon in the amount of 0.25 percent of the full lagoon
I volume. This seeding should occour at least two weeks Pnor to the
addition of wastewater.
6. Maintain a periMic check oft the lagoon liquid p1l. If the pH fmI3 sxc30w
7.0, add agricultural lime at the rate of ; pound per :000 Cubic feet of
lagoon liquid volume until the pH rises above 7.0. optimum lagoon liquid
pH is between 7.5 and & C'.
". A dark color, lack of bubbling, and excessive odor signa:s inadequate
biological activity. Consultation with a twhrical spec:al;st is recommended
if these condidons occur for prolonged periods, especia11y during the warm
season.
Uadin
The mo,-e frNuen: y and regu'a:ly that wastewater is added to a lagoon, the better the
lagoon w;ll function. Flush systems that wash waste into the lagoon s4vArai limes tally a e
optimun", ir treatment. F . recha: gc sys:erns, in which one or more I)vi?dings are drainer
and recharged each day, also work welt,

?'-.thee water conservation---rninirnire building water usage and
spalIage from leaking waterers, broken pipes and washdown through
proper mainterance and water conse;vatior.
'�Wmize feed wa-stag
: solids er•te;-ing the lagoon
eand spillage by keeping Feeders adiusted. 7. his
n�of J
Management: will reduce the a nau
• !Maintain lagoon liquid level between thermartent Storage level and
the full terazporary storage level,
place visible markers or stakes on the lagoon bank to snow the
min :mum liquid level and the max rnum Equid lever (Figure 2-.).
• Stan irrigating at the ea;licst t3osstle date it the sprang based on
nutrient requirements and soil =moisture so that _eMP0rary storage
will be maximized for the summer t,' understorrn seGson. Similarly irrigate in the late surn„ terlParly fail to provide mex"muni iagoon
stnr-agc for "he winter.
• T"ne lagoon liquid level should never be closer than ? foot to the lowest
notnt of the darn or embankment.
DO not pump the lagoon liquid level lower that the �%Manent storage
level unless you are removing sludge.
• LOc.ate float pump intakes approxi:�ately 18 inches underneath the liquid
surface and as far away from the crainp=.pe inlets as passtbie.
• prevent additions of betiding materials, ion -stem forage or vegetation,
molded =eed, plastic syringes, or otter foreign; materials into the lagoon.
Frequently remove solids from catch basins at end o confinerjer.: houses a
wherever they are installed.
Maintan strict vegetariorraderc, and varmi,,: control rtea.T lagoon edges.
Do not allow trccs or lErgC bushes to grow on iagoor, dam or ernbankr.ent.
Remove sludge from the iagoor, patter when the sludge storage capacity is
fail or before it fills 50 percent of the permanent storage volume.
If animal prodt:ctior is to be terminated, the owner is responsible for
obtaining irid i np]emers
pollutant discharge. f7g a closure plan to eliminate t4l'e possibility of a
SIudge Removal:
.Rate of Iagoon sludge buildup can be reduced by:

• Proper Lagoon sizing,
mecharucal solids separation of flushed waste,
gravity settling of�sshed waste so_'ids in an appropriately designed basin, or
rr�inirnzz.ng feed wastage and spillage.
Lagoon sludge that is removed anr1uzl!,yrather than stored long terra wilt,:
have more nuLrients,
have more odor, and
require more land to proper:; rU;; ille rL;tl`eP.:S.
Removal techrioues:
Hire a custom applicator.
Vzx the sludge and lagoon Iigaid with a chopper -agitator i �pelie: Pump through Ia;ge-bore spin;der irrigation system ontc. ne2r�y croc;an;i; and soi: ineorporate.
Dewater t t upper pa.-t of lagoon by irrigation on5o nsaaby crop?and or
iorageland; mix renazn:ng sludge; pump into I;gtic sludge applicator; haul
and spread onto cropla_-id or forageland; and soil incorporate.
Dewater the upper part of lagc0:1 by irrigation onto nearby cropiand or
forage:and; dredge sludge from, lago,or; with dragline or sludge barge; berm an area beside Iagoo:I to receive tie sludge so that liquids can drain back into lagoon; allow s'.udge to dewater; haul and spread with manure spreader
onto cropland or forageland; and soil incorporate.
Regardless of the method, you rlust have the sludge materal ana]yzed for waste
constituents just as you would your, lagoon waver. The sludge wiii contain, di=i'erer,:
nutrient and metal valises from the liquid. 'x`he application: of tI a Sludge to fields will be
?rmzced by these rtutriat is as well as any previous waste applications to that field and crop
requirement. `Haste application rates will be discussed in detail n Chapter ?.
Whet, removing sludge, )'oi: must Jisa pay attention to the liner to prevent damage. Close
attention by the pumper or drag-Iine operator will ensure that the lagoon liner remains
int2ct. If you see soil material Or the synthetic Iincr mater ai being disturbed, you should
stop the activity immediately and not resume until you are sure that the sI ed, can should
rebe
moved without liner Injury. If the liner is damaged it must be repaired as soon. as
possible.
Sludge removed from the lagoon has a m-,ch higher phosphoris and heavy Metal cQ11tent
titan liquid. Because of this it should probably be applied to land with low p;josphorus
and neta: evels, as indicated by a soil test, ar.-d nco:porated to reduce the chance of
erosion. Note that if the sludge :s applied to fleas with very high sail -test, phosphores, :l
shou?d be applied only at rates eq jai to the crop remova' of' As will] OtI"er
wastes, always have your lagoon: sludge analyzed for its nutnent value.
The app:ication of sludge will increase the amours; of odor at the waste application site.
Extra'precaution should be used to observe the wind direction and otter corta'tiorts whic;;
cau:d increase the concern of nz:ghbors.

Possible Causes of Lagoon Failure
kgocn failures result it3 tale unplanned discharge of wastewater from the structure. "'�p�
Of fail;�res include leakage through the bottom or sides, overtopping, and breach of the
dam. Assuming groper design and 'des,
the owner has the responsibility for
ensur'ng structure safety. Items which may lead to lagoon failures include:
Niodiriczson of t•te lagoon: example is the placement. of a pipe
ir. the dam witi;vut proper design and construction. (Consult an expert in
agoon design befo-e placing i y pipes in dams.) -
Lagoon liquid Ieti'e1$-__ni9h leveis are a safety risk.
Failure to ::1s_P--4c1a*qd maintain the cam.
Excess surface water flowing into tale lagoon.
Litter integrity ---protect frcr,, inlet pipe scouring, damage during sludge
:e--novad, or ruPt"re F Or.1 lvwc ling lagoon ligLld leYec b:Ipw grautadK'ttCCC
Lr�[e.
1fAl :: iagoor. water is ailowed to overtop the dam, the moving water wii: soon cause
9L;"ies to form in to darn. once this damage starts, it Call qutckly cause a large discharge
of wastewater and possible dam :`ai_ure.