NCG060365_Certificate of Coverage (COC)_20151203

PAT MCCRORY
Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Governor
DONALD R. VAN DER VAART
Secretary
TRACY DAVIS
December 3, 2015
C. Michael Anderson
Valley Proteins, Inc.
P.O. Box 10
Lewiston, NC 27849
Subject: General Permit No. NCG060000
Valley Proteins, Inc.
Lewiston Division
COC NCG060365
Bertie County
Dear Mr. Anderson:
Director
In accordance with your application for a discharge permit received on October 20, 2015, we are
forwarding herewith the subject certificate of coverage to discharge under the subject state — NPDES
general permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-
215.1 and the Memorandum of Agreement between North Carolina and the US Environmental Protection
Agency dated October 15, 2007 (or as subsequently amended).
Please take notice that this certificate of coverage is not transferable except after notice to the Division of
Energy, Mineral, and Land Resources. The Division may require modification or revocation and
reissuance of the certificate of coverage.
This permit does not affect the legal requirements to obtain other permits which may be required by the
Division of Energy, Mining, and Land Resources, or permits required by the Division of Water
Resources, Coastal Area Management Act, or any other federal or local governmental permit that may be
required.
If you have any questions concerning this permit, please contact Richard Riddle at telephone number
[phone].
Sincerely,
ORIGINAL
GtCEtsk PICKLE SIGNED s�
for Tracy E. Davis, P.E., CPM, Director
Division of Energy, Mineral and
Land Resources
cc: Washington Regional Office
Central Files
Stormwater Permitting Program Files
State of North Carolina I Environmental Quality I Energy, Mineral andLand Resources
1612 Mail Service Center 1512 North Salisbury Street I Raleigh, NC 27699-1612
t 919 707 9200 T

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
GENERAL PERMIT NO. NCG060000
CERTIFICATE OF COVERAGE No. NCG060365
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Valley Proteins Inc.
is hereby authorized to discharge stormwater from a facility located at
Valley Proteins Inc.
Lewiston Division
222 Griffins Quarter Road
Lewiston
Bertie
to receiving waters designated as Roanoke River, a class C, water in the Roanoke River Basin, in
accordance with the effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III, and IV of General Permit No. NCG060000 as attached.
This certificate of coverage shall become effective December 03, 2015.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day December 03, 2015.
ORIGINAL SIGNED E31
KEN PICKLE
for Tracy E. Davis, P.E., Director
Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission

Valley Proteins, Inc.
Valley Proteins, Inc.
Valley Proteins - Lewiston Branch
Latitude: 36° 08' 21.5" N
Longitude: -77° 13' 22" W
County: Bertie
Receiving Stream: Roanoke River
Stream Class: C
Index Number: 23-(26)b1 (Roanoke River Basin)
-"And" 4=.1600Ffirirtik4r*All
IIPAV
Facility Location

REOENEDINCoEwooma
SE? 16 2016
Water Quality Regional
Operations
tRegional Otice
Washington
ASSESSMENT OF BEST MANAGEMENT
PRACTICES
VALLEY PROTEINS
LEWISTON, NORTH CAROLINA
KLEINFELDER PROJECT NO. 131914.000A TASK 13-000
Copyright 2016 Kleinfelder
All Rights Reserved
ONLY THE CLIENT OR ITS DESIGNATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC
PROJECT FOR WHICH THIS REPORT WAS PREPARED.

ASSESSMENT OF STORMWATER
BEST MANAGEMENT PRACTICES
Valley Proteins
Lewiston, North Carolina
Prepared for
j=r
r. EY PROTEINS
Valley Proteins, Inc.
September 7, 2016
Prepared by: Reviewed by:
'? 7
Linda M. Lamb, P.E.
Principal Professional
Michael Sussman, P.E.
Program Manager
fi, KL E/NREL DER
Bright People. Right Solutions.
Raleigh, North Carolina

TABLE OF CONTENTS
1.0 INTRODUCTION 1
2.0 MATERIAL HANDLING NARRATIVE 2
3.0 FEASIBILITY STUDY 7
3.1 Non -Structural BMPs 7
3.2 Structural BMPs 8
3.3 Potential Additional Measures 9
4.0 FECAL COLIFORM EVALUATION 11
5.0 CONCLUSIONS AND CORRECTIVE MEASURES 12
FIGURES
Site Layout Map
APPENDICES
Appendix A - Milestone Schedule
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1.0 INTRODUCTION
The North Carolina Department of Environmental Quality (NCDEQ) Division of Water Quality
(DWQ) issued Certificate of Coverage NCG060365 to Valley Proteins Lewiston Division on
December 3, 2015 under General Permit NCG060000 for stormwater discharges from industrial
manufacturing activities. Section E of Part II of the general permit requires facilities that use or
process animal fats and/or by-products to complete and submit an assessment of best
management practices (BMPs) within twelve months of issuance of coverage. Best management
practices must be assessed for off-loading, handling, and spill prevention of rendered fats and
oils that are stored and used at the facility.
This report includes the findings of the assessment, and must be submitted to both the local DWQ
Regional Office and the Stormwater Permitting Unit for review and approval. This report
addresses the required content in the following sections, including:
• A narrative description of all the material handling activities (not just fats and
oils handling) at the facility that are outside or that otherwise expose materials
to incidental rainfall or run-on.
• A feasibility evaluation as to whether reduced exposure can be achieved at the
site, and rank the potential management measures as to feasibility. Emphasize
the evaluation of on -site conditions with respect to incidental, accidental,
fugitive materials, and spills, whether solid or liquid.
• An evaluation of the presence, and volume of, or absence of animals and/or
wildlife on the site and whether fecal coliform concentrations might be
correlated to the presence or absence of those animals.
• A proposed corrective action measures plan with milestones and proposed
schedule for. implementation.
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2.0 MATERIAL HANDLING NARRATIVE
The Valley Proteins Lewiston facility is an animal rendering processing plant. Animal byproducts
and used cooking oil arrive by truck and are processed to produce protein meal and saleable fat.
Liquid raw materials are pumped to storage tanks before processing. All subsequent process
activities are conducted indoors. The finished products are reloaded in trucks for shipment.
Locations are illustrated on the attached facility layout map. This section describes the storage,
loading and unloading practices for raw materials (including fuels), by-products, waste materials,
and finished products.
2.1 RAW MATERIALS
Raw materials processed at the facility are used cooking oil (grease) and animal byproducts.
Used cooking oil is brought to the facility for recycling by tanker trucks. The grease is pumped
from the trucks into the grease storage tank, where the grease is stored until it is processed in
the grease system.
Byproducts are brought to the facility for processing aboard tarp -covered open -top trucks and
tankers. While waiting to unload, the trucks are parked on the concrete drain pad in the staging
area. On the pad, the trucks are drained of any free liquids, which drain into the process
wastewater collection system.
The solid byproducts are unloaded at the adjacent raw material receiving area. The byproducts
are fed directly into the rendering process, and are not stored on -site for any appreciable length
of time. Liquid byproducts and used restaurant grease are pumped to aboveground storage tanks.
Spillage or leakage which occurs during transfer or processing of raw materials is collected by
the process drainage system which serves as the containment system, and then is routed to the
onsite Perdue wastewater treatment system. Three 17,000-gallon cone -bottomed liquid raw
material storage tanks are enclosed by a concrete secondary containment area normally drains
to the rendering plant, though clean stormwater can be released via a locked drain valve.
The empty trucks are cleaned in the truck and bin wash area located in the southwest corner of
the facility, or the truck wash building. The truck and bin wash is covered and enclosed on two
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sides. The truck wash building is completely enclosed. Graded pavement directs the flow of wash
water into trench drains, which flow into the wastewater system. After washing, the trucks are
parked in the clean vehicle parking area. Cleaning agents are stored inside the wash building so
that any spills would drain the same way as the wash water.
2.2 PETROLEUM
The boilers in the rendering plant burn No. 6 fuel oil, which is stored outdoors in one 30,000-gallon
storage tank. The storage tank is located to the south of the rendering plant. Fuel is delivered by
tank truck and is transferred from the tank to the boilers through overhead piping. The storage
tank is located within a concrete secondary containment system. The containment system gravity
drains stormwater into the wastewater system.
The facility also has outdoor storage of vehicle fuel in one 12,000-gallon tank containing highway
diesel fuel and one 500-gallon gasoline tank. These products are used to refuel trucks and on -
site equipment. The fuel is transferred from the diesel tank to the electric fuel dispensing pump
through underground piping. These tanks are located west of the vehicle maintenance facility and
are double -walled. The tanks and dispensing pump are located within a concrete fuel delivery
truck containment area equipped with an oil water separator which drains to the wastewater
treatment plant. If a spill occurs while refueling, the diesel fuel will drain on the graded concrete
to the stormwater sump, where it will be routed to the wastewater treatment plant, or retained in
the stormwater basin. The nearby urea drums are kept closed and stored in the containment
drainage area.
Several small oil tanks are located inside the vehicle maintenance facility, but are refilled by truck
or drum delivery. Floor drains in the shop are routed to the wastewater treatment plant. Spills
outdoors during the refilling of petroleum tanks will drain into the stormwater system, if not
otherwise manually contained, and be retained in the stormwater pond.
A small tank and drum storage area located on the north side of the rendering plant is used for
the storage of miscellaneous oils such as hydraulic, waste, and chain and gear lube oils. The
storage area contains a 1000-gallon non -highway diesel fuel tank, a 1000-gallon used oil tank,
and three 500-gallon hydraulic and gear oil tanks. The area has a concrete containment structure
and is covered with a roof to minimize the potential accumulation of stormwater. The structure
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does not have a drain. Tanks are re -filled by truck delivery; contents are manually transferred by
tank -mounted hand pumps. Any spillage which occurs during the refilling of tanks in this area that
is outside of the concrete containment walls will drain into the stormwater collection system, if not
otherwise contained.
Tank loading procedures meet DOT requirements and are described in Section 2.6.
2.3 PROCESS CHEMICALS
Chemicals used in processing and cleaning at the facility include sodium hypochlorite, sodium
hydroxide, fat stabilizers, truck wash detergent, antifreeze and urea (aqueous ammonia.) Portable
chemical drums and totes are stored within the covered containment structure on the north side
of the rendering plant, described above.
Other chemicals are stored and used indoors and do not present a hazard to stormwater.
Totes are replaced when empty by truck delivery and immediately moved to their point of use.
Small quantities of miscellaneous liquid and solid materials (motor oil, cleaning solutions, salt,
etc.) are delivered in closed drums, pails, or bags by truck, and are manually transported by hand
or fork truck to points of indoor storage immediately upon arrival.
2.4 WASTE PRODUCTS
Wastewater is generated from processing activities at the facility. This water drains to the main
plant wastewater sump and is pumped to be treated in the on -site Perdue wastewater treatment
plant.
2.5 FINISHED PRODUCTS
The finished products of the rendering process are protein meal and liquid fat. The protein meal
is stored in silos outside the rendering plant. The meal Toad -out area is partially enclosed. Loading
of processed meal into trucks can generate dust in and around the loading area. To help control
the dust and stormwater contamination that could result, the load -out area is dry cleaned
frequently and washed as needed.
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Finished fat is pumped into large storage tanks located to the east of the. plant. The fat is stored
in these tanks until it is transferred to tanker trucks for removal. The fat tanks, truck loading piping,
and pumps are surrounded by a concrete dike system with a total containment volume that
exceeds the volume of the largest tank. If a spill occurred, the material would remain in the dike
until it is manually released to the wastewater treatment plant. For use during heavy rain events,
where the wastewater treatment plant cannot process the volume of accumulated stormwater, a
containment area drain valve can be opened which discharges directly to the trench drains
adjacent to the dike, which drain to the stormwater pond. This valve is locked and controlled by
the wastewater plant operator, and opened only to discharge oil -free stormwater. The pond levels
can be reduced or spills recovered by pumping to the wastewater treatment plant.
A spill during truck loading would be captured by the fat tank farm containment dike and thus the
plant process drainage system. Truck drivers provide wheel chocks, drip pans for hose
connections and inspect bottom drains for leakage prior to departure. Loading procedures meet
DOT requirements, are the same as for fuels, and are described in the next section.
2.6 LOADING PROCEDURES
Tank Trucks:
1. A Company employee will remain with the truck driver during the material transfer
procedure.
2. Position tank truck and place wheel chocks.
3. Verify receiving tank level is adequate for quantity of material to be delivered or
loaded.
4. Make hose connections between the tanker truck and the storage tank.
5. The truck connections will be double checked prior to starting the transfer.
6. Begin transfer of material.
7. Continually observe piping, valves, pumps and the truck to detect leaks before a
major problem is allowed to exist.
8. After the transfer is completed, place drip pans beneath the piping connections.
9. Close valves on the truck and pumping system.
10. Open piping connections and allow hose contents to drain into the drip pans.
11. Cleanup spillage. Dispose of waste in an approved manner.
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Drums:
1. New drums and containers are to be inspected to determine if they are leaking or
in poor repair.
2. Prior to transport, bungs, vents, and rim seals are to be inspected and secured.
3. Drums and containers are transported individually by hand truck or by front-end
loader.
4. Drums transported in the bucket of the front-end loader will be fastened with a
strap.
5. Drums and containers will not be opened until placed in use.
6. If drums are moved before empty, bungs, vents, and rim seals are secured.
7. Portable drum pumps will be used to transfer oil from drums to other containers.
8. After transfer, the operator will inspect the area for spills before opening another
drum.
9. Drum and container storage areas will be routinely inspected for spills and Teaks.
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3.0 FEASIBILITY STUDY
A number of best management practices (BMPs) are currently in use at Valley Proteins. These
practices, which are composed of both structural and non-structural controls, already limit the
potential for contamination of stormwater. This section presents the existing Valley Proteins
BMPs, and an assessment of the feasibility of potential measures which may attain additional
reductions in exposure.
3.1 NON-STRUCTURAL BMPS
The non-structural administrative controls which are used at the site are: materials management
procedures, including good housekeeping practices; material exposure control; spill prevention
and cleanup; and connection controls.
Valley Proteins materials management policy requires regular cleaning of the facility grounds, and
the storage of drums, barrels and bags of chemicals inside. All chemical containers are checked
regularly for leaks or signs of damage. Raw material, product and chemical tanks are labeled.
Employees must provide adequate aisle space to facilitate materials transfer and easy access for
inspections; store containers, drums, and bags away from direct traffic routes to prevent
accidental spills; stack containers according to manufacturers' instructions to avoid damaging the
containers due to improper weight distribution; and store containers on pallets or similar devices
to prevent corrosion of the containers which can result when containers come in contact the
moisture on the ground. Employees are instructed to maintain clean, dry floors and ground
surfaces by using brooms, shovels, vacuum cleaners, or cleaning machines and to regularly pick
up and dispose of garbage and waste materials.
Material exposure to stormwater is limited in multiple ways. By-product trucks which are not
immediately unloaded have tarps secured over their loads to protect against contact with rainfall.
Raw material trailers are parked only on the drain pad or in the staging area. All processing
operations and maintenance activities are conducted indoors or in covered areas. Finished
products are stored in covered bins or tanks where they are protected from stormwater.
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Spills are prevented by providing bulk storage tanks with secondary containment. Employees
inspect equipment for proper operation - all piping and equipment is inspected regularly for Teaks
including tanks, dikes, valves, pumps, flanges, and connections, and any leaks which are found
are fixed promptly. Truck loading and unloading is attended by a Valley Proteins employee, and
employees are trained in spill prevention and response procedures. Spill cleanup supplies and
equipment are maintained in strategic locations and are inspected regularly and replenished as
needed.
Stormwater conveyances are inspected monthly and certified annually for illicit connections and
unallowable non-stormwater discharges, which will be promptly removed, if present.
3.2 STRUCTURAL BMPS
The structural stormwater controls employed at the facility include the use of curbing and graded
pavement to contain and direct the flow of stormwater, collection and treatment as wastewater of
stormwater from the immediate area around the rendering plant, containment dikes around all of
the storage tanks, containment for diesel truck re -fueling operations, roofing over the chemical
and oil storage area, and enclosures for meal loading and truck washing. Outdoor areas of the
plant where raw material is staged or handled have been engineered to flow toward the process
building drains, where runoff is collected and pumped to the wastewater treatment plant for
collection and/or treatment.
The stormwater conveyance system is divided into three drainage areas: one area handles the
stormwater runoff from uncontained areas around the rendering plant, one area handles the
stormwater from the uncontained areas around the VMF, and one manages regulated stormwater
from unpaved areas at the rendering plant used for equipment storage, which joins a drainage
ditch flowing from non -industrial property outside the fence, and along the access drive.
Any stormwater or process wastewater which enters the trench drains from paved areas
immediately around the rendering plant or from storage tank containment areas flows into the
main sump, located on the southeast side of the plant. From the sump, the water is pumped to
the Perdue plant wastewater treatment system. The wastewater system is designed to collect and
treat the first half -inch of rainfall which occurs in a 24-hour period.
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Most stormwater which falls on uncontained areas of the plant, including paved areas outside of
secondary containment, drains to one of the two stormwater detention ponds. The rendering plant
pond is located at the southwest corner of the plant property; the VMF area pond is located
between the rendering plant and the VMF, east of the VMF The pond levels can be reduced or
spills recovered by pumping to the wastewater treatment plant. The VMF pond will discharge to
Outfall 001, if the water level is high enough to overflow at the outlet structure. The rendering
plant pond does not normally discharge. One small unpaved area north and east of the rendering
plant directly discharges to Outfall 002. Non -industrial grassy areas outside the plant fence drain
via generally north along the truck entrance drive, then northwest via a surface ditch toward the
swampy area northwest of the plant and subsequently to the Roanoke River.
3.3 POTENTIAL ADDITIONAL MEASURES
In order to minimize the potential for contamination of stormwater at Valley Proteins, the following
changes to operations and storage practices could be considered, in order of feasibility:
• Maintain vegetated slopes and channels in unpaved areas.
• Perform dry cleanup of paved driveways, parking areas, etc. where byproducts
transport vehicles are staged, stored, moved across, etc. according to a
schedule to be developed as appropriate for the facility.
• Inspect storm water collection and discharge systems (manholes, underground
storm sewers, sediment ponds/traps, etc.) and remove accumulated silt,
sediment, organic materials, etc. according to a schedule to be developed as
appropriate for the particular facility.
• Install additional barriers where appropriate around or in drop inlets, and above
outfalls. Systems to be inspected and maintained.
• Perform water wash down of paved driveways, parking areas, etc. where
byproduct transport vehicles are staged or stored, according to a schedule to
be developed as appropriate for the particular facility and where water is
collected for treatment/disposal.
• Cover or eliminate outdoor storage of unused equipment, scrap material and
empty containers except in areas where stormwater is captured to the
wastewater treatment system.
• Install cover for gasoline fueling pump.
• Install truck loading containment for boiler fuel oil tank.
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Recent construction activity at the fat storage tank farm has disturbed part of the unpaved area
contributing to Outfall 002. Rip rap will be installed in the ditch and vegetative cover re-established
in this area to prevent erosion.
The facility currently performs dry cleanup of paved driveways, parking areas, etc. where
byproduct transport vehicles are staged, stored, moved across, etc. The locations and frequency
of this activity will be reviewed adjusted, if necessary to achieve benchmarks.
The facility currently inspects and maintains existing stormwater conveyances monthly. The
frequency of the inspections and maintenance will be reviewed and adjusted, if appropriate.
Additional filter barriers around drop inlets and above outfalls will be considered and installed, if
appropriate, to achieve benchmarks.
The gasoline fueling pump could be covered to protect from stormwater run-on, and a truck un-
loading containment area added for the boiler fuel tank. While these measures are feasible,
previous analytical sampling has shown that oil and grease concentrations are below the
stormwater benchmark and therefore additional controls are not deemed necessary.
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4.0 FECAL COLIFORM EVALUATION
Seasonal bird activity at the facility is pronounced from October to March. Sea gulls inhabit the
entire operating area, even roosting on the buildings. Vultures inhabit the northern area of the
rendering plant near the wastewater pond and raw material unloading area year round. Other
animal activity near the industrial operations is minimal. (Valley Proteins maintains a rodent
control program.) Some other wildlife is certainly present at the site, especially in outlying areas
of the site away from the industrial buildings and traffic. But these areas are not monitored by the
stormwater sampling program.
Animal activity is not likely to be a significant contributor nor to be correlated with stormwater
discharge fecal coliform concentrations because the stormwater retention basins treat nearly all
the facility stormwater.
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5.0 CONCLUSIONS AND CORRECTIVE MEASURES
Valley Proteins believes that additional Best Management Practices are warranted for this facility
to limit potential impacts to water quality. These measures include:
• Rip rap will be installed in the channel above the sampling location for Outfall
002.
• Vegetative cover will be established on the slope below the new fat tank farm.
• The dry cleanup procedures, locations and frequency will be reviewed and
adjusted, if sampling results are above benchmarks.
• The frequency of the inspection and maintenance of existing storm water
collection and controls will be increased, if sampling results are above
benchmarks.
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FIGURES

CONE -BOTTOM
RAW
MATERIAL
TANKS
DRUM
CONTAINMENT
(H)
HYDRAULICILUBE
(G)
OUTFALL 002
LAT: 36'08'23.26"
LONG: -077'13'34.77'
OUTFALL 001
TOTAL AREA - 428165.67 S.F.
IMPERVIOUS AREA - 226913.45 S.F.
PERCENT IMPERVIOUS - 53%
OUTFALL 002
TOTAL AREA - 638395.47 S.F.
IMPERVIOUS AREA - 242228.88 S.F.
PERCENT IMPERVIOUS - 38%
150 300
SCALE: 1" =150' SCALE IN FEET
DESIGNED BY: RGC
MODIFIED BY: TLB
GATE: 09-09-2015
ORIGINAL SCALE IN INCHES FOR
REDUCED PLANS
0 0.5 1.0 1.5 2.
EXHIBIT
of 4 sheets
0

APPENDIX A
MILESTONE SCHEDULE

ADDITIONAL BMP
ESTIMATED COMPLETION
Install rip rap in the channel above
Outfall 002.
First Quarter 2017
Establish vegetative cover on the slope
below the new fat tank farm.
First Quarter 2017
Review the dry cleanup locations and
frequency and adjust if indicated by
sampling results above benchmarks.
First Quarter 2017
Review the frequency of the inspection
and maintenance of storm water
collection and controls and adjust if
indicated by sampling results above
benchmarks.
First Quarter 2017