NC0003760_Renewal (Application)_20211004

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ROY COOPER ii t- 3itipt "
Governor i
ELIZABETH S.BISER aX�.n.,.�•
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Secretary
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
October 04, 2021
DuPont
Attn: Emily Price, Plant Manager
4693 N C Hwy 11 N
Grifton, NC 28530
Subject: Permit Renewal
Application No. NC0003760
E.I. DuPont Kinston Plant
Lenoir County
Dear Applicant:
The Water Quality Permitting Section acknowledges the October 4, 2021 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
iceil
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
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D U P O N" DuPont Kinston Plant
4693 Hwy.11 North
Grifton,NC 28530
NPDES Industrial Wastewater
Permit Renewal Application
NPDES Permit No. NC0003760
DuPont Kinston Plant
DUPONT-
sorona
DuPont Industrial Biosciences USA, LLC
October 1, 2021

DU PONT
N DuPont Kinston Plant
N 4693 Hwy.11 North
Griffon,NC 28530
October 1,2021
Mr. Doug Dowden
North Carolina Department of Environmental Quality
Division of Water Resources
Water Quality Permitting Section RECEIVED
1617 Mail Service Center
Raleigh,NC 27699 O C T 0'4 2021
Re: DuPont Kinston NPDES Permit Renewal Application NCDEQ/DWR/NPDES
NPDES Permit No. NC0003760
Dear Mr. Dowden,
The DuPont Kinston Site is a polytrimethylene terephthalate(PTT)manufacturing facility owned
and operated by DuPont Industrial Biosciences USA, LLC (DuPont). The DuPont Kinston Site
currently operates under National Pollutant Discharge Elimination System (NPDES)Permit
No.NC0003760 issued by the Division of Water Resources(DWR)on December 12,2018 and
expiring on March 31,2022.Pursuant to Title 15A, Subchapter 02H of the North Carolina
Administrative Code, applications for permit renewals should be submitted at least 180 days
prior to expiration of a permit. DuPont Kinston is submitting this NPDES permit application
package for industrial wastewater discharges previously covered by NPDES Permit No.
NC0003760.Pursuant to Permit Proviso A.24. of the current NPDES permit,DuPont Kinston is
submitting a separate NPDES permit application package to the Division of Energy,Mineral,
and Land Resources (DEMLR)for stormwater discharges from industrial activities previously
covered by NPDES Permit No.NC0003760. It is DuPont Kinston's understanding that there are
no permit renewal fees.
If there any questions,please feel free to contact me at(252) 559-7043 or Shelby Arellano at
[phone].
Sincerely,
Emily A.Price
Plant Manager
DuPont Kinston Site
DuPont Industrial Biosciences USA LLC

DUPONT! DuPont Kinston Plant
4693 Hwy.11 North
Grifton,NC 28530
NPDES Industrial Stormwater
Permit Renewal Application
NPDES Permit No. NC0003760
DuPont Kinston Plant
DUPONT
son^ona
DuPont Industrial Biosciences USA, LLC
October 1, 2021

TABLE OF CONTENTS
1. Introduction
2. Site Location
3. Manufacturing Process
4. Wastewater Treatment Plant Operations
5. Water Treatment Chemicals
6. Environmental Permits
7. RCRA Facility Investigation
8. Requested Permit Updates
9. Proposed Outfall Designations
10. Sampling and Analysis
11. Compliance Action Plan
12. Mercury Minimization Plan Results
13. Instream Hardness Test Results
Appendix A. Topographic Map
Appendix B. Site Drainage Maps
Appendix C. SWMU Location Map
Appendix D. Final RFI Channel Surface Water Sample Locations
Appendix E. Form 1
Appendix F. Form 2C
DuPont Industrial Biosciences USA LLC

1. Introduction
DuPont Industrial Biosciences USA, LLC (DuPont)owns and operates the DuPont Kinston Site
for the production of Sorona®pellets. The DuPont Kinston Site currently operates under
National Pollutant Discharge Elimination System (NPDES) Permit No.NC0003760. This permit
application is for industrial wastewater discharges from the Site.
2. Site Location
The DuPont Kinston Site is located at 4693 Highway 11 North, Grifton,North Carolina, in
Lenoir County, approximately 11 miles northeast of Kinston. Appendix A includes a topographic
map that shows the location of the site,the facility boundary, and the outfall locations.
The DuPont Kinston Site is composed of two general areas,the Manufacturing Area and the
South Disposal Area. The Manufacturing Area is located south of Beaverdam Branch, in the
north-central portion of the Site. The South Disposal Area is in the southern portion of the Site
and includes the wastewater treatment plant(WWTP). This area has been used historically for
waste management.
Effluent from the WWTP discharges to the Neuse River.All other discharges from the DuPont
Kinston Site are to Beaverdam Branch or wetlands adjacent to the Neuse River. The wetlands are
separated from the Neuse River by a natural riparian berm. Beaverdam Branch and the Neuse
River are designated as Class C,Nutrient Sensitive Waters(NSW) in the Neuse River Basin; in
addition, Beaverdam Branch has a supplemental classification as Swamp Waters (SW).1 DuPont
Kinston maintains membership with the Lower Neuse Basin Association (LNBA)and the Neuse
River Compliance Association (NRCA).
3. Manufacturing Operations
Manufacturing operations at the DuPont Kinston Site began in 1953. Historical manufacturing
operations included the production of Dacron®(polyethylene terephthalate [PET])polyester
resin and fibers. Dacron polyester was produced using either dimethyl terephthalate (DMT)and
ethylene glycol or terephthalic acid (TPA) and ethylene glycol.
Current manufacturing operations include the production of Sorona®(polytrimethylene
terephthalate [PTT]), a renewable bio-based polymer. The Sorona process uses purified TPA and
1,3-propanediol (PDO). Water,allyl alcohol, acrolein, and n-butanol are all byproducts of the
polymer production process. However,none of these are products for sale or for use in
production. All filament and fiber manufacturing lines have been discontinued at the DuPont
Kinston Site. Current manufacturing operations are covered by Standard industrial Classification
(SIC) Code 2821 —Plastics Materials, Synthetic Resins, and Nonvulcanizable Elastomers and
North American Industry Classification System (NAICS) Code 325211 —Plastics Material and
Resin Manufacturing.
I Surface water classifications for Stream Index Nos.27-75.7 and 27-33 from the Neuse River Basin Classification
Schedules.
DuPont Industrial Biosciences USA LLC 2

The change in manufacturing operations resulted in several inactive or decommissioned
production areas. The DuPont Kinston Site has completed numerous D&R projects to
proactively safeguard against impacts to the surrounding environment from these areas. Several
decommissioned and abandoned in-place facilities have been completely removed down to the
concrete slab. D&R work at the DuPont Kinston Site will continue through 2021.
4. Wastewater Treatment Plant Operations
The DuPont Kinston Site operates the WWTP for the treatment of sanitary wastewater,process
wastewater, non-contact cooling water,boiler blowdown, groundwater, leachate, and
stormwater.
4.1 Pretreatment
The organic stripping column removes volatile organic compounds,primarily acrolein from
process wastewater before it is sent to the wastewater stabilization tank. Sodium bisulfite is
pumped from a tote to the wastewater stabilization tank to remove additional acrolein from the
wastewater prior to sending to the WWTP. The wastewater stabilization tank is a 12,000-gallon
tank controlled to maintain 75%level. This level provides approximately four hours of residence
time at flow rates of 35 gallons per minute from the OSC. The wastewater stabilization tank
discharges to the process sewer which flows to the WWTP.
4.2 Aerobic Biodegradation
The DuPont Kinston Site uses a biological wastewater treatment process that relies on bacteria to
use the biodegradable organic (carbon-based)compounds as a source of energy for growth. The
bacteria also use nitrogen,phosphorus, and sulfur in building proteins for cell growth. Thus,
there is some removal of these three elements through uptake, or incorporation into bacterial
cells. Nitrogen can also be removed through biological nitrification(metabolism of ammonia
and organic nitrogen compounds into nitrate)and biological denitrification (using nitrate as an
oxygen source during respiration, generating nitrogen gas as a waste product). The influent
contains some nitrogen but requires the addition of aqueous ammonia hydroxide to supplement
the system requirements for nutrients.
4.3 Aeration Basin
The aeration basin is 8-foot deep and has a total capacity of 3.6 million gallons. The influent is
located in the southwest corner below the surface. The outlet weir is located in the northeast
corner. A total of 15 floating aerators provide the dissolved oxygen and mixing for the aeration
process. These aerators can be manually operated, or PLC controlled. The return activated sludge
(RAS) lines are located in the southwest corner as are the holding pond, and sand bed filtrate
returns. The diversion gates are PLC controlled from the total organic carbon(TOC)analyzer for
loading spikes or can be manually operated to divert slug loads to the holding ponds. Flow can
also be diverted in cases of extreme hydraulic loading to minimize plant overloading and solids
washout.
4.4 Clarification
A polymer is used as a flocculating agent for settling before clarification. The clarification
process includes the two clarifiers and two clarifier sumps with three centrifugal pumps serving
each clarifier. The clarification step accomplishes three tasks:
DuPont Industrial Biosciences USA LLC 3

o Gravity separation of the treated wastewater from the activated sludge (bacteria),
o Pumped return of the settled activated sludge to the mix tank; and
o Transfer of settled activated sludge to the dewatering operation.
The two clarifiers are each 95 feet in diameter with an 8-foot side water depth and approximately
380,500 gallons capacity each. Each clarifier has a continuous overflow into gravity piping to the
contact chamber. Though not used for disinfection,the flow must pass through the contact
chamber to Outfall 001. The Site has a refrigerated automatic composite sampler and on-line
flow, DO,and temperature monitoring at this location.Note that the monitoring location for
Outfall 001 is at the exit of the contact chamber.
4.5 Dewatering
The dewatering system includes sludge feed pumps,the polymer feed system, six sand drying
beds, and the filtrate water return system. The polymer used to coagulate the waste biosolids into
dewaterable particles is a high molecular weight, high charge cationic emulsion(oil-based)
polymer. The waste activated sludge(WAS) is drawn off from the return activated sludge line
from the clarifier sump. It flows through the wasting building and is dosed by the polymer/water
mix by inline injection. The dewatering of waste sludge is accomplished by 6 sand bed filters.
The conditioned biosolids are filtered by the sand particles, and the released water is allowed to
pass through to the drain system in the bottom of the beds. This filtrate is then returned to the
head of the aeration basin by the filtrate pumps located in the filtrate building adjacent to the
sand beds. The desired final cake water percentage is less than 70%. The wasted solids are
binned and sent to the landfill for disposal.
4.6 Line Diagram
Figure 1 shows a line diagram for DuPont Kinston's WWTP.
Figure 1. Wastewater Treatment at the DuPont Kinston Site
sooium
BlaulIfite
Groundwater Wells ► Process 0.3109 MGD +,
Wastewater
—► Boiler 0.0004 MOD Amnions Holding Fioctulant
• �,
Blowdown Ponds
Ammonia
—► Non-Contact 0.0230 MOD • + , Diversion kerarion Contact Effluent Neuse
Cooling Water Gates Basin Clarrifiers "Chamber River
Waste Waste
North Lenoir ► Sanitary 0.0027 MOD Sludge Sludge Sand sludge
Water Corporation Wastewater return } Beds Landfill
Slormwarer 0.0300 MGD a coagulon.
Suns Bad Effluent
Groundwater/ 0 NEC MGD
Leachate
DuPont Industrial Biosciences USA LLC 4

5. Water Treatment Chemicals
The following water treatment chemicals are used at the DuPont Kinston Site:
o ChemTreat CL6859
o ChemTreat CL4132
o ChemTreat CL41
o ChemTreat CL49
o ChemTreat CL6034
o ChemTreat BL1345
o ChemTreat BL1253
o ChemTreat BL1581
o ChemTreat P874L
o ChemTreat P846E
o Vitec 3000
o Liquid Caustic Soda 25%,Membrane Grade
Note that ChemTreat Identification may change as ChemTreat modifies product formulations. In
accordance with Proviso A.9 of the current NPDES permit, DuPont Kinston will notify the
Division in writing no later than ninety days prior to planned use of any additional biocide which
may be toxic to aquatic life.
6. Environmental Permits
The DuPont Kinston Site is currently operating under the following environmental permits:
o Synthetic Minor Operating Permit(Permit No. 03878R42)—This permit was issued for
the operation of air emissions sources located at the DuPont Kinston Site. This permit is
effective from August 20, 2021 to July 31, 2029.
o National Pollutant Discharge Elimination System (NPDES)Permit(Permit No.
NC0003760)—This permit was issued for discharges of wastewater and stormwater from
the DuPont Kinston Site. This permit is effective from December 12, 2018 to March 31,
2022.
o Central Coastal Plain Capacity Use Area(CCPCUA)Permit(Permit No. CU3022)—This
permit is for groundwater withdrawal for the purpose of industrial use in the CCPCUA in
Lenoir County. This permit is effective from February 19, 2019 to September 30, 2023.
o Hazardous and Solid Waste Amendments (HSWA)-only Permit(EPA ID No.
NCD003190386)—This permit is for correction action under the Federal Resource
Conservation and Recovery Act(RCRA). This permit is effective from April 22,2021 to
April 22, 2031.
o Inactive Solid Waste Landfill Permit(Permit No. 54-04 ISWLF)—This permit is for the
closed construction and demolition (C&D) and industrial solid waste landfill located at
DuPont Industrial Biosciences USA LLC 5

the DuPont Kinston Site. This permit is no longer active as the landfill was formally
closed (capped) in 2005.
o Inactive Solid Waste Transfer Facility Permit(Permit No. 44-07T)—This permit is for
the closed solid waste transfer station previously located at the DuPont Kinston Site. This
permit is no longer active as the transfer station was formally closed in 2009.
7. RCRA Facility Investigation
The DuPont Corporate Remediation Group(CRG)has been performing investigation activities at
the Site as part of a RCRA Corrective Action Program and in accordance with Dupont's HSWA-
only Permit. The overall goal of the RCRA Facility Investigation (RFI)was to characterize the
nature and extent of potential releases from Solid Waste Management Units(SWMUs)and
Areas of Concern (ADCs)at the DuPont Kinston Site and to identify corrective action objectives
that address the risks associated with complete and potentially-complete exposure pathways.
CRG is currently working with the Division of Waste Management(DWM)to receive approval
of the Final RFI Report.
Per discussions with DWM, additional surface water sampling events and an ecological
assessment for these onsite surface water drainage channels, Beaverdam Branch, and the Neuse
River were included in the Final RFI in order to more fully assess discharges of potentially
impacted groundwater to surface water. Drainage Channels 1, 2, 3, 4, 5, 6, 7, and 24 are man-
made ditches that receive surface water runoff and open into wetlands adjacent to the Neuse
River. The upstream reach of Channel 7 also collects leachate and impacted groundwater from
upgradient SWMUs, and this flow is continuously rerouted to the WWTP. Appendix E contains
a map of the Final RFI Channel Surface Water Sample Locations. Results from the final RFI
include the following:
o Impacted groundwater from SWMUs/ADCs is entering channels that drain to wetlands
adjacent to the Neuse River.Discharges are intermittent as flow in these channels is
dependent on rain events.
o There was no evidence of adverse ecological effects due to potential Site-related
constituent concentrations in the Neuse River or Beaverdam Branch.
o The total calculated concentrations in the Neuse River were all less than the associated
screening levels indicating that current groundwater and drainage channel surface water
conditions are protective of the Neuse River.
o The only potentially complete exposure pathway for contaminants from SWMUs/ADCs
to reach Beaverdam Branch is via groundwater. Groundwater does not reach the surface
in any of the outfalls discharging to Beaverdam Branch.
o No water quality concerns were identified for sediment or surface water in Beaverdam
Branch.
DuPont Industrial Biosciences USA LLC 6

o As a part of the CMS, CRG is recommending drainage channel surface water monitoring
to ensure conditions remain protective of the Beaverdam Branch,the Neuse River, and
the surrounding wetlands.
8. Requested Permit Updates
As a part of this permit renewal application,DuPont Kinston is proposing several permit
modifications to ensure all discharges of potentially impacted groundwater and all discharges of
stormwater associated with industrial activity are being sufficiently monitored.
1. Although the Final RFI Report concludes that current conditions are protective of surface
waters, data obtained during the RCRA investigations indicates that discharges of
leachate, impacted groundwater, and stormwater runoff are comingled in the surface
water drainage channels. Therefore, DuPont Kinston is requesting to add impacted
groundwater as a permitted wastewater discharge from the applicable outfalls. Impacted
groundwater includes any potential leachate from the SWMUs.
2. DuPont Kinston is requesting to add five new wastewater outfalls(Outfalls 008, 009,
010, 011, and 012)for intermittent discharges of impacted groundwater and stormwater
runoff from Channels 1, 2, 3,4,and 6 to the wetlands adjacent to the Neuse River.
3. DuPont Kinston is requesting to include impacted groundwater as an intermittent
discharge from Outfalls 005 and 006. Outfalls 005 and 006 are no longer deemed to be
stormwater only outfalls.
4. DuPont Kinston is requesting semi-annual grab samples for the monitoring of discharge
characteristics at Outfalls 005, 006, 008, 009, 010, 011, and 012.Although these are
permitted as wastewater outfalls, sampling of these outfalls will need to be managed
similarly to stormwater sampling. Discharges from these outfalls are composed of
stormwater runoff and impacted groundwater;therefore, discharges are intermittent and
heavily dependent on rain events. In addition,these outfalls can be dry for extended
periods of time.
5. DuPont Kinston is requesting to remove non-contact cooling water from Outfall 002 as
the powerhouse cooling tower and water cooled freon units were removed and replaced
with air cooled chillers. All cooling water from the Factory Engine Room Cooling Tower
and the 3G4 Cooling Tower is sent to the process sewer. In addition, DuPont Kinston is
requesting to add fire protection water and impacted groundwater as intermittent
discharges from Outfall 002.
6. DuPont Kinston is requesting to move the currently permitted Outfall 002 back to the
previously permitted location. The current location is in a canal that also collects surface
runoff from the adjoining farmland. In addition,the current location presents hazardous
sampling conditions due to extensive washout. Pursuant to the permit modification
application submitted on November 9,2005, Outfall 002 was relocated to the
DuPont Industrial Biosciences USA LLC 7

downstream location in order to incorporate additional stormwater runoff from the C&D
and Ash landfills that enter the canal from Channels 4 and 6. As previously stated,
DuPont Kinston is requesting to add 2 new outfalls for Channels 4 and 6 (Outfalls 011
and 012).The currently permitted Outfall 002 will be broken down into 3 individual
outfalls. The revised outfall designations provide safe and accessible sampling points that
are more representative of the discharges from the DuPont Kinston Site.
7. DuPont Kinston is requesting to maintain approval for constant time/constant volume
composite sampling for Outfall 002.
8. DuPont Kinston is requesting to revise the receiving water designated for Outfalls 002,
005, and 006. Upon further review of surface water hydrology at the DuPont Kinston
Site, it was determined that Outfalls 002, 005, and 006 are man-made ditches that
ultimately discharge to wetlands adjacent to the Neuse River. These outfalls do not
discharge directly to the Neuse River as a natural berm separates the wetlands from the
river.
9. DuPont Kinston is requesting to add one new stormwater outfall (Outfall 007). Upon
further review of engineering drawings, it was determined that stormwater from industrial
activity potentially discharges from this outfall to a man-made ditch to Beaverdam
Branch.
10. DuPont Kinston is requesting to remove Outfall 003 as a permitted outfall. All steam
condensate discharges have been removed or rerouted to Outfall 002, and all stormwater
discharges from this outfall no longer meet the definition of stormwater associated with
industrial activity. The only discharges from this outfall are stormwater runoff from an
administrative building and the accompanying parking lot, uncontaminated air
conditioning condensate, and stormwater runoff from D&R areas where significant
materials no longer remain. Although DuPont is not required to monitor stormwater
outfalls that are not associated with industrial activity,DuPont will include these outfalls
in the Kinston Site's SWPPP.
11. In addition to the requested permit updates,DuPont Kinston is providing revised flowrate
information for discharges from Outfall 001 and Outfall 002.
9. Proposed Outfall Designations
9.1 NPDES Wastewater Permit Outfalls
Outfall 001: Treated Wastewater(Sanitary Wastewater, Process Wastewater,Non-Contact
Cooling Water,Boiler Blowdown, Groundwater,and Stormwater)
Outfall 002: Steam Condensate, Fire Protection Water, Groundwater,and Stormwater
Outfall 005: Stormwater and Groundwater
Outfall 006: Stormwater and Groundwater
Outfall 008: Stormwater and Groundwater
DuPont Industrial Biosciences USA LLC 8

Outfall 009: Stormwater and Groundwater
Outfall 010: Stormwater and Groundwater
Outfall 011: Stormwater and Groundwater
9.2 NPDES Stormwater Permit Outfalls
Outfall 004: Stormwater Only
Outfall 007: Stormwater Only
10. Sampling and Analysis
DuPont Kinston held a meeting with DWR and DWM on September 15, 2021 to discuss the
proposed modifications to the Site's NPDES permit based on findings from the Final RFI.
DuPont Kinston also addressed the need for additional sampling. Given the number of requested
permit updates, DuPont Kinston will be conducting sampling solely for the purposes of this
application. The outfalls discharging impacted groundwater need to be analyzed in accordance
with Form 2C for potential constituents of concern identified in the RCRA investigations. Due to
g
timing and sampling being dependent on measurable storm events,representative sample results
will be submitted in an application addendum by December 31, 2021.
Based on the RCRA investigations,the pollutants listed in Table 1 are potentially present in the
discharges of impacted groundwater/leachate. DuPont Kinston will conduct sampling for these
pollutants at Outfalls 002, 005, 006, 008, 009, 010, 011, and 012.
Table 1. Potential Pollutants in Groundwater at the DuPont Kinston Site
Table B of Form 2C Table C of Form 2C Table D of Form 2C Emereine Compounds
Tetrachloroethene Barium Formaldehyde 1,4-Dioxane
Acenaphthene Cobalt Vanadium
Benzo(a)anthracene Iron
Benzo(b)fluoranthene Manganese
Benzo(g,h,i)perylene Fluoride
Benzo(k)fluoranthene Nitrate
Benzo a ene Sulfate
Chryzene
Dibenz(a,h)anthracene
Fluoranthene
Fluorene
Indeno(1,2,3)pyrene
Pyrene
Antimony
Arsenic
Chromium
Copper
Lead
Nickel
Selenium
Zinc
DuPont is requesting that DWR waive composite sampling requirements for the wastewater
outfalls composed of only stormwater runoff and impacted groundwater. The use of an automatic
sampler is impractical as sampling locations are in heavily wooded areas without access to
electricity. DuPont Kinston believes grab samples will be representative of the discharge.
DuPont Industrial Biosciences USA LLC 9

11.Corrective Action Plan
The current NPDES permit includes future numerical metals limits for Outfalls 002 and 003 with
an effective date of April 1, 2022. DuPont Kinston developed a Corrective Action Plan (CAP)
that summarizes actions to be taken to achieve compliance for the new total zinc and total lead
limits at Outfall 002 and the new total copper,total lead,total silver, and total zinc limits at
Outfall 003.
11.1 Outfall 002
The DuPont Kinston Site has demonstrated compliance with the new total zinc limit at Outfall
002 since the effective date of the current NPDES permit. However, data indicates the potential
for Outfall 002 to periodically exceed the new total lead limit. Based on the investigative
sampling performed in 2017, 2018, and 2019,process wastewaters contributing to Outfall 002
are not a significant source of lead. RCRA investigations indicated that impacted groundwater
from SWMUs is discharging to Channel 4, Channel 6, and Outfall 002. Additional time is
required to further investigate metals concentrations from the discharges of impacted
groundwater. It is possible that the surface runoff from the adjoining farmland is the source of
lead. The revised outfall designations will provide more representative sample data.
Additional considerations need to be given to the CAP and the schedule of compliance for
Outfall 002 based on the revised outfall designations and discharge information.As such,
DuPont Kinston is requesting a two-year extension to the effective date of the new metal limits
to Outfall 002.A revised CAP will be submitted in an application addendum by December 31,
2021 with the sample results.
11.2 Outfall 003
DuPont initially proposed relocating the monitoring point for Outfall 003 as part of the CAP.
However,D&R activities from 2017 to 2021 have completely removed the sources of
stormwater from industrial activity. In addition to the D&R work, all steam condensate lines
have been removed or rerouted. As previously stated,the only remaining discharges from Outfall
003 are stormwater runoff from an administrative building and the accompanying parking lot,
uncontaminated air conditioning condensate, and stormwater runoff from D&R areas where
significant materials no longer remain. Although Outfall 003 is currently subject to a compliance
schedule,the substantial alterations associated with discharges to this outfall justify removal of
this outfall from the permit. Sample data results clearly demonstrate the decrease in metal
concentrations. DuPont Kinston has showed continued compliance with the new metal limits
over the past two years.
DuPont Industrial Biosciences USA LLC 10

12. Mercury Minimization Plan
Pursuant to Permit Proviso A.15 of the current NPDES permit, DuPont Kinston is submitting a
summary of the Mercury Minimization Plan (MMP)results with this NPDES permit application
package. DuPont Kinston developed and implemented the MMP for Outfalls 002 and 003.
DuPont Kinston evaluated the following common sources of mercury:
o Mercury containing devices(in use or in inventory);
o Lab use of chemicals,thermometers, and other devices;
o Maintenance Shops; and
o Certificates of analysis for bulk chemicals.
The majority of the mercury containing equipment was removed from the site from 2014 to
2015. D&R activities continue to remove sources of mercury after the initial overhaul.
Additional control measures listed in the MMP continue to be implemented by the Site.
Grab sampling for mercury analysis is conducted on a quarterly basis at Outfalls 002 and 003.
Figure 2 shows the quarterly grab sample results for Outfalls 002 and 003. The quarterly
sampling results show a significant reduction in mercury levels following the development of the
MMP in November of 2017.
Figure 2. Mercury Minimization Plan Results
—&—Outfall 003 Sample Results Outfall 002 Sample Results —Permit Limit of 12 ng/L
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1/1/15 7/20/15 2/5/16 8/23/16 3/11/17 9/27/17 4/15/18 11/1/18 5/20/19 12/6/19 6/23/20 1/9/21 7/28/21
DuPont Industrial Biosciences USA LLC 1 I

13. Instream. Hardness Testing
Pursuant to Permit Proviso A.1. of the current NPDES permit,DuPont Kinston is submitting all
instream hardness test results with this NPDES permit application package. Instream monitoring
of hardness is waived provided the DuPont Kinston Site maintains membership with the LNBA,
and the LNBA agrees to sample hardness at the upstream location at a minimum frequency of
quarterly. Hardness samples are taken upstream at LNBA Station J6250000. Table 2 provides the
instream hardness test results.
Table 2. Instream Hardness Test Results for LNBA Station J6250000
Date Hardness (mg/L)
Jun-17 33
Sep-17 20
Dec-17 44
Mar-18 32
Jun-18 40
Sep-18 48
Dec-18 20
Mar-19 21
Jun-19 36
Sep-19 33
Dec-19 35
Mar-20 28
Jun-20 24
Sep-20 22
Dec-20 24
Mar-21 28
Jun-21 24
DuPont Industrial Biosciences USA LLC 12

APPENDIX A. TOPOGRAPHIC MAP
DuPont Industrial Biosciences USA LLC

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1 /
. ) r - p Il
1
r
• _
, -fir .
'. "_
�/ * `y- .t `'ice`-s _..alb";. '� �D - 9 � . :;---/C - -
Ai..4" 0.Ntiol Alb
C La-
�- - .. - ,--Upstream_ ._-=a"» e ti, ,r•"
�; - _ _ c
i O �� . r"
1 e.ma, .....I a r `.. _ : ,. , ...---5!"
r_
Coordinate System:GCS North American 1983 e_°% ,' /. : , ,_---
Datum North American 1983 r '�°'"'' '. l
Units: D r e ree ""`°
g � •.- --• e _,�=i` ";---�Copyright:©2013 National Geographic=Society,i-cubed '
Map Number Name_ Latitude Longitude
1 DuPont Kinston WWTP 35°19'30.000"N 77°28'13.700"W Facility Location
2 WW Outfall 001 35°19'28.400"N 77°27'57.600"W
3 WW Out fall 002 35°19'34.971"N 77°28'50.310"W j
4 SW Outfall 004 35°20' 3.700"N 77°28'29.700"W • ,rid
5 WW Outfall 005 35°19'39.920"N 77°28'4.900"W
6 WW Outfall 006 35°19'20.400"N 77°28'10.600"W
7 SW Outfall 007 35°19'51.000"N 77°29' 2.000"W
8 WW Outfall 008 35°19'14.855"N 77°28'38.975"W USGS Quad: Grifton, N.C.
9 WW Outfall 009 35°19'14.902"N 77°28'28.463"W Receiving Streams:
10 WW Outfall010 35°19'16.914"N 77°28'23.200"W -Beaverdam Branch, Class C, NSW, Sw
_
11 WW Outfall 011 35°19'16.667"N 77°28'47.694"W -Neuse River and Adjacent Wetlands, Class C, NSW
12 _WW Outfall 012 35°19'29.251"N 77°28'41.730"W
13 _ We'll 7 35°19'55.200"N 77°28'20.464"W
14 __ Well8 35°19'46.412"N 77°28'37.200"W NC0003760 - Dupont Kinston,
15 Well 9 35°19'37.200"N 77°28'31.404"W
16 Well 10 35°19'48.000"N 77°28'31.404"W Lenoir County
17 Well 14 35°19'45.430"N 77°28'58.958"W
Notes:
1.Currently permitted sampling location for Outfall 002:35°19'14.9"N.77°28'49.3"W
2.Outfall 003 was removed due to no industrial exposure.
3.SW=Stormwater,WW=Wastewater

APPENDIX B. SITE DRAINAGE MAPS
DuPont Industrial Biosciences USA LLC

DuPont Kinston- Site Drainage Map _ vised 9/30/2021)
41"),; 1
1�l"1 ,��`�SJ i'« � -\�`inn_r t24 5 �--..
it >
, / / /7)11'(14(, yiiiTise . 's'"3r\i,r,,,'K,,,,,,, '—\ ir,
sir Q
�f� --' fx D f° �t;� , �� /N i
g I Tank Farm 1
Lill
` '1 vJ' i � . ,-
�� Admin. Its,
11 1
,�� ,PA, ���I�'. Parking :a:.I'f,a
d m i 5,V�IOf ��BasinA rj` 1I II: ''
' BasmF7t - t 1 �"i l I 11�/ _ .` War ho ne :` 0 -I (J�� �. I `Ontfau001
:i ,t -/ Loading 5 Manufacturing
Y 1 �F�' .� S q�:s�., 1 lit 1 i
(( �. anufactur g-T_ ti IJ o ..._ et'l I}��»�*L,j I001M Monitoring
1 / /Basing J.-) I, I ll ii, 1 l 1 "� '
�o
, ` out It 007 + / \ /''(•---~ s._ 1{(w)(wr+et `j 1,
t �/ _� \ ` \\�'( rz% ,i /i A)11PiwwTcl h. 11 - _ •C< 1 fill ///� ..
,a� ` j/ (t ' Basin E , � .-,./ �( 1\=/Diversion -.` 1. IA3 a
Basin D
/ ..filf k `\ ! 1/ _,i 7141 OutfaB 006
- .'-. .,,,,)I t i (/ /4 Crj '
��\ oatfauooz, . t i 0 (l�( f I , if if 0 �',
r ,oatFaumz � ontt:uolo
Key ..-�- Ealk. Basin c j ,�
�1 l/ w / I
X NPDES Stormwater Outfall ___ "N tiL _ /-•�/. (.!7 i 1 I
X NPDES Wastewater Outfall /) ryi ~~„� outfit!!009�
Outfall with No Exposure to Industrial Acti%ity `�' 1��` / �
X Outfall OH l�r Outfa11008 9,"
* Central Accumulation Arca _' j Satellite Accumulation Area ^ (� -1 �� J
* Essential Materials Loading and Unloading "-,
J
+ Structural BMP �t
Outfall 002-Containment Basin
Outfall 004-Grassed Swale
Outfall 006-Diversion Structure
Outfall 007-Settling Basin
Drainage Areas:
Outfall 004 Drainage Area=31.96 acres,Impervious=12.52 acres
Outfall 007 Drainage Area=10.15 acres,Impervious=7.60 acres
I

DuPont Kinston - Previous Site Drainage Map - —
////// \ rA1
ii/ I .--,---OUTFALL 004
/'// OUTFALL 005
% BASIN 1 `�\ ' ,,
G
r I4/BAF IW~ I�gq;� \� \
/ / I 1 •
I-v. �I �
/
/ BASIN r/ •rt I� ��� �-_. ,"`. 1 .
/ lei ��� I ❑ �� i I I I ,
/ �/ / 1I1 � �`\' i by '}
NPDES I I aC I jj
/OUTFALI J 1I•� i'+����3 I 1 / Y 'I"
J 003 (/', „} A l 1�'.ir i J O Ai
I UTFALL
\ lrzgclu �41 E°dill i a BASIN i I 1 001
iij
� �BASIIf� —- _ �,� �
Oo Oa �E i;l�' ram•
, , ' �I 1
�p°�/ BASIN_P� H"�o�
D / r tjOUTFALL
/ /� 1 006
// /'/ �/ /BASIN I
i
ORNER/ / ' ..� .
i
t �y
OUTFACE °f o \ ;r / \ '.,
c.
002
RELOCATED/fI J/` �
OUTFALL 002 �.�// - -
IINFl KINSTON LLC
KNSTON.NORTH GAMMA
OUTFALL LOCATION MOP
®Cen.AYilm•S 41001.1131111
.... a ;:o.I.W.]

APPENDIX C. SWMU LOCATION MAP
DuPont Industrial Biosciences USA LLC

N // SMWU or AOC
we Drainage Channel
/ r` -- ' Beaverdam Branch(creek) I
Y r k j
„i Railroad
cC
Site Road
G2. 4 - ---Sanitary Sewer
4 v Process Sewer(SMWU 13)
I Building or Structure
+ � Site Boundary
6 f Manufacturing Area
' 1 South Disposal Area
/ 47' -AOC 104
Manufacturing
t rin
-- Area
rea r—SWMU 56
AOC 107 OS-�
SW MU 40•-N �r-SWMU 84
SWMU 55---,
" /SWINU 37-- �� , JIsWMU33
b
,/ SWMU 38--
..%� l .� 1 SWMU 33 a
i /// SWMU 41-- Y/
/ �i`. Id ' C JD) SWMU 4..'" + r•` C e AOC:103A SWMU 29 SWMU 64
Vb,7-"-'e °.°°D' 4/ < 4 AOC:103B SWMU 36 SWMU 65
' SWMU 3 Q
•-{- / J AOC 103C SWMU38 SWMU 70
✓/ SWINU 57., • . AOC 103F SWMU 43 SWMU 71
�� �° '� ` AOC'105 SWMU 44 SWMU 72 '-,+
0
b P k.1 /{ SWMU 45-- � W
�� -------- AOC'106 SWMU 49`SWMU 73 �t
� SWMU 46-- / ACC 86- SWMU 50 SWMU 74
__ ,,r f AOC1C / S1 MU 67--9- oo AOC107-03 SWMU 58 SWMU 79
�,/ j/`/,; //(((( cq {� A05107-04 SWMU 60 SWMU 80
O / J / o/.- 7 / SWINLI 14 SWMU 61 SWMU 85
� SWMU 47-J--'"` , / ld \ 0 4, l
iX SWMU 66s \,� p / ',//// /
swroU 6 i SWMU 69r
/ SWMU 48-- - /
CACC107 02 \ SWMIU431 r SN/MLI 11 /
\ `-SWMU 27 /
SWMU 82- -SWMU 28� e\c'
V ' SWMU 31—N / j Orin" _ ,
\ \
,,, .- SWMU 9 �.i SWMU'.:
\ O SW/MU 90 t--� SWMU 17 ,
\.� South �_� ;.
Disposal rSWMU>22
.; SWMU 16-� �;
,
o. Area !SWMU 23-
� --5W M U,21
. ,,. CVa�`\e`g .w SWMU 1- �` /�\� v`q SWMU 20
•�
-6 SWMU 19
a ,x SWMU 2- SWMU 15', , .
a. a• ?��v - �/� <v ,Q .---SW MU 32 �h0 --SWMU'18• - 1, ..
o a., "06 w •SWMU6 4P .7 .y, �y...
u -____ s C.
Q -� \ .SWMU 30 ��^ & ' ..,.
/// 11,,tt//II ^-'SWMU 52 ` ., _ -.'
-.o
\ SWMU 10 / SWM�S)4c .i
= _,� ''x -SWMU 4 .�
a,; w. .� -SWMU 26. .I. r
a ,1 `' SVJMU8 ChH ix it ^9«
t,° r .. -SWMU 25 ,y, it .a.
e,
N.
-'!iiSummary .wyp.4 M
m]a.e%
0 250 500 1,000
F •�, c-_r cam.... 1..,,., MIMI.,- Feet
K
Drawn: Date. DuPont Project No.:
PARSONS
Site Overview P.Sorensen 11/27/2019 504337
Revision: Figure No.: Parsons Project No.:
Parsons Environment&Infrastructure
DuPont Kinston Plant 451760
Kinston, North Carolina 2
4701 Hedgemore Dr. File Name: Kin_Fig2_SiteOverview
Charlotte,NC 2620:3 Aerial Source:ESRI Webservice,NC CGIA
NC911 Ortho Program(3/16/2016)

APPENDIX D. FINAL RFI CHANNEL SURFACE WATER SAMPLE LOCATIONS
DuPont Industrial Biosciences USA LLC

DuPont•Kinston Facility
Legend
• Historical Surface Water
Sample Location
Surface Water Sample
• 0 Collected During Final RFI
/
j Field Sampling Event
Other Site Features
®Site Boundary
Road
/ Fence
J/�/ / yf� Railroad
Drainage Channels
J
Beaverdam Branch
j SWMUorAOC
/� 4I� Building or Structure
Neuse River
• \.
/ ,
/BDe ,demv4�c / ` '
a ` : l Y''.
N
.l`-\{ ; �'
!, y' J/
\ dX
J" ~ ` CHAN-0S
J�� Jam`'
�9MU7241
��f W C7-3,e, CHANNEL 24 {g,$\eCHAN-06 �C`)47r2t
,�T scz ))7 C7-1
� � n\-�c, I + CHAND7-02
CHAN-04 �--1 "Nr J 3 J
��� N )\ CNAN0d3-01 r
Ci.s
CHAN02-01
CHAN03-02
/
CHANOI-01
,,,,�" CIIAN07-03
CNANO7-02. 7C^J/� �CNANO]-03
CHANO7-0] l}7
CHAN02-02
CHANO3-01
D
CHAN02-04
-CHAN02.03 ��
W �,1� E 0 500 000 soo
V Feel
Final RFI Channel Surface Water
�-r ■ 14.—� Sample Locations.
P 1 O N EER Final RFI Report Figure L-2
F CI'FIN°LOGIE5 CORPORATION DuPont Kinston Facility

APPENDIX E. FORM 1
DuPont Industrial Biosciences USA LLC

United States Office of Water EPA Form 3510-1
Environmental Protection Agency Washington,D.C. Revised March 2019
Water Permits Division
. EPA Application Form 1
General Information
NPDES Permitting Program
Note: All applicants to the National Pollutant Discharge Elimination System(NPDES)permits
program,with the exception of publicly owned treatment works and other treatment works treating
domestic sewage,must complete Form 1. Additionally, all applicants must complete one or more of the
following forms: 213,2C, 2D, 2E, or 2F. To determine the specific forms you must complete, consult the
"General Instructions"for this form.

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
Form U.S.Environmental Protection Agency
1 aEP/t Application for NPDES Permit to Discharge Wastewater
NPDES GSM GENERAL INFORMATION
SECTION 1.ACTIVITIES REQUIRING AN NPDES PERMIT(40 CFR 122.21(f)and(f)(1))
1.1 Applicants Not Required to Submit Form 1
1.1.1 Is the facility a new or existing publicly owned 1 1 2 Is the facility a new or existing treatment works
treatment works? treating domestic sewage?
If yes, STOP. Do NOT complete ❑✓ No If yes, STOP. Do NOT ✓❑ No
Form 1.Complete Form 2A. complete Form 1. Complete
Form 2S.
1.2 Applicants Required to Submit Form 1
1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
li operation or a concentrated aquatic animal commercial, mining,or silvicultural facility that is
production facility? currently discharging process wastewater?
Yes 4 Complete Form 1 ❑✓ No ✓� Yes 4 Complete Form ❑ No
aa.. and Form 2B. 1 and Form 2C.
c1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
mining,or silvicultural facility that has not yet commercial, mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
0 ❑ Yes 4 Complete Form 1 No ❑ Yes 4 Complete Form �✓ No
ce and Form 2D. 1 and Form 2E.
1.2.5 Is the facility a new or existing facility whose
5 discharge is composed entirely of stormwater
associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
Yes 4 Complete Form 1 ❑ No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
b 15 .
SECTION 2.NAME,MAILING ADDRESS,AND LOCATION(40 CFR 122.21(f)(2))
2.1 Facility Name
DuPont Kinston Plant
2.2 EPA Identification Number
.773
NCD003190386
2.3 Facility Contact
Name(first and last) Title Phone number
Emily Price Plant Manager [phone]
Email address
[e-mail]
2.4 Facility Mailing Address
Street or P.O.box
4693 NC Hwy 11N
City or town State ZIP code
Grifton NC 28530
EPA Form 3510-1(revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
2.5 Facility Location
Street, route number,or other specific identifier
Q 0 4693 NC Highway 11N
a)
o County name County code(if known)
g It; Lenoir
City or town State ZIP code
Grifton NC 28530
SECTION 3.SIC AND NAICS CODES(40 CFR 122.21(f)(3))
3.1 SIC Code(s) Description(optional)
2821 Plastics materials,synthetic and resins,and nonvulcanizable elastomers
U,
d
0
U
U)
U
z 3.2 NAICS Code(s) Description(optional)
325211 Plastics Material and Resin Manufacturing
U
SECTION 4.OPERATOR INFORMATION(40 CFR 122.21(f)(4))
4.1 Name of Operator
DuPont Kinston Site
0 4.2 Is the name you listed in Item 4.1 also the owner?
8 ❑
0 Yes ❑✓ No
= 4.3 Operator Status
❑ Public—federal ❑ Public—state El Other public(specify)
o ❑✓ Private El Other(specify)
4.4 Phone Number of Operator
[phone]
4.5 Operator Address
Co
Street or P.O. Box
E m 4693 NC Highway 11N
0 0
City or town State ZIP code
0 o Grifton NC 28530
Co U
0- Email address of operator
[e-mail]
SECTION 5.INDIAN LAND(40 CFR 122.21(f)(5))
c -0 5.1 Is the facility located on Indian Land?
J ❑Yes ❑� No
EPA Form 3510-1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
SECTION 6. EXISTING ENVIRONMENTAL PERMITS(40 CFR 122.21(f)(6))
6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
m NPDES(discharges to surface RCRA(hazardous wastes) ❑ UIC(underground injection of
o Y water) fluids)
NC0003760 EPA ID No.NCD003190386
w a ❑ PSD(air emissions) ❑ Nonattainment program(CM) ❑ NESHAPs(CM)
a)
w 0 Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section 404) ❑✓ Other(specify)
See Attached
SECTION 7.MAP(40 CFR 122.21(f)(7))
7.1 Have you attached a topographic map containing all required information to this application?(See instructions for
specific requirements.)
❑✓ Yes ❑ No 0 CAFO—Not Applicable(See requirements in Form 2B.)
SECTION 8.NATURE OF BUSINESS(40 CFR 122.21(f)(8))
8.1 Describe the nature of your business.
DuPont Industrial Bioscienses USA,LLC owns the DuPont Kinston Site that occupies approximately 650 acres near
Kinston,North Carolina.DuPont Kinston manufactures PTT polyester(Poly-trimethylene terephthalate),which is
widely used in textiles and other woven goods.Ancillary activities at the site include raw material and product
storage,combustion sources,and wastewater treatment.
0
0
ca
z
SECTION 9.COOLING WATER INTAKE STRUCTURES(40 CFR 122.21(f)(9))
9.1 Does your facility use cooling water?
d ❑✓ Yes ❑ No 4 SKIP to Item 10.1.
9.2 Identify the source of cooling water.(Note that facilities that use a cooling water intake structure as described at
2 40 CFR 125,Subparts I and J may have additional application requirements at 40 CFR 122.21(r).Consult with your
NPDES permitting authority to determine what specific information needs to be submitted and when.)
o -
�j .2 The source of cooling water is groundwater supplied by wells regulated under CCPCUA Permit No.CU3022.
In the event that the wells are not functioning(emergency situation),potable water from North Lenoir Water
Corporation can be used as the source of cooling water.
SECTION 10.VARIANCE REQUESTS(40 CFR 122.21(f)(10))
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
N apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and
cn when.) .
❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
o` Section 301(n)) 302(b)(2))
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
❑✓ Not applicable
EPA Form 3510-1(revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
SECTION 11.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
11.1 In Column 1 below,mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to provide attachments.
Column 1 Column 2
❑✓ Section 1:Activities Requiring an NPDES Permit ❑ w/attachments
❑✓ Section 2:Name, Mailing Address,and Location ❑ wl attachments
❑✓ Section 3:SIC Codes ❑ w/attachments
❑✓ Section 4:Operator Information ❑ w/attachments
❑ Section 5: Indian Land ❑ wl attachments
❑✓ Section 6: Existing Environmental Permits ❑✓ wl attachments
wl topographic
❑✓ Section 7:Map ❑✓ map ❑ w/additional attachments
o IDSection 8:Nature of Business ❑ wl attachments
❑✓ Section 9:Cooling Water Intake Structures ❑ wl attachments
.a ElSection 10:Variance Requests ❑ w/attachments
y ❑✓ Section 11:Checklist and Certification Statement ❑ w/attachments
11.2 Certification Statement
U
1 certify under penalty of law that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted.Based on my inquiry of the person or persons who manage the system,or those persons
directly responsible for gathering the information, the information submitted is,to the best of my knowledge and
belief,true, accurate,and complete.I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Emily Price Plant Manager
Signature Date signed
� t / Z(z
EPA Form 3510-1(revised 3-19) Page 4

Form 1 Section 6.1
Other Permits:
• Synthetic Minor Operating Permit(Permit No. 03878R42)
• Central Coastal Plain Capacity Use Area(CCPCUA)Permit(Permit No. CU3022)
• Inactive Solid Waste Landfill Permit(Permit No. 54-04 ISWLF)
• Inactive Solid Waste Transfer Facility Permit(Permit No. 44-07T)

APPENDIX E. FORM 2C
DuPont Industrial Biosciences USA LLC

United States Office of Water EPA Form 3510-2C
Environmental Protection Agency Washington, D.C. Revised March 2019
Water Permits Division
44.EPA Applicationi Form 2C
Existing Manufacturing ,
Corrmmercial, IVliriiing, and
Si lvicu ltural Operations
NPDES Permitting Program
Note: Complete this form and Form 1 if your facility is an existing manufacturing,commercial,mining,
or silvicultural facility that currently discharges process wastewater.

EPA Identification Number NPDES Permit Number =acility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
Form U.S.Environmental Protection Agency
2C "EPA Application for NPDES Permit to Discharge Wastewater
NPDES EXISTING MANUFACTURING,COMMERCIAL,MINING,AND SILVICULTURE OPERATIONS
1944111 Pi101114/1111111OCATION(40 CFR 122.21(g)(1))
1.1 Provide information on each of the facilit 's outfalls in the table below.
0 Numb Receiving Receiving Water Name Latitude Longitude
co
0 o „
0
See Page 1 A tachment for a list of all waste ater outfalls.
m
0 —
k'txelltelW4111I►1' : ING(40 CFR 122.21(g)(2))
a, 2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a water
c 3 balance?(See instructions for drawing requirements.See Exhibit 2C-1 at end of instructions for example.) I
m
o ❑✓ Yes ❑ No See Section 4.6 of the application narrative. 1
SECTIOW 3.AVERAGE 'LOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1, provide average flow and treatment information.Add additional sheets if
necess . i
**Outfall Number*"
11111111 •p-rations Contri'uting to Flow
Operation Average Flow
See Page 2 Attachment for a list of all wastewater outfalls. mgd
c
E mgd
lil
1- mgd
c
10 mgd
td
3 MIM I
o Treatment Units
Description Code from Final Disposal of Solid or
Cril D (include size,flow rate through each treatment unit, Table 2C-1 Liquid Wastes Other Than
a' __ retention time,etc.) by Discharge
EPA Form 3510-2C(Revised 3-19) Page 1

Section 1.1—Outfall Locations
Outfall Receiving Water Name Latitude Longitude
*001 Neuse River 35° 19' 28.4" N 77° 27' 57.6" W
002 Unnamed tributary to wetlands 35° 19' 34.971" N 77° 28' 50.31" W
adjacent to the Neuse River
005 Unnamed tributary to wetlands 35° 19' 39.2" N 77° 28' 4.9" W
adjacent to the Neuse River
006 Unnamed tributary to wetlands 35° 19' 20.4" N 77" 28' 10.6" W
adjacent to the Neuse River
008 Unnamed tributary to wetlands 35° 19' 14.855" N 77° 28' 38.975" W
adjacent to the Neuse River
009 Unnamed tributary to wetlands 35° 19' 14.902" N 77° 28' 28.463" W
adjacent to the Neuse River
010 Unnamed tributary to wetlands 35° 19' 16.914" N 77° 28' 23.2" W
adjacent to the Neuse River
011 Unnamed tributary to wetlands 35° 19' 16.667" N 77° 28' 47.694" W
adjacent to the Neuse River
012 Unnamed tributary to wetlands 35° 19' 29.251" N 77° 28' 41.73" W
adjacent to the Neuse River
*The monitoring location for Outfall 001 is at the exit of the contact chamber were WWTP effluent enters a pipe that discharges
directly to the Neuse River.
Pagel-Attachment

EPA Identification Number NPDES Permit Number =acility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
3.1 **Outfall Number*"
cont. Operations Conti I uting to Flow
Operation Average Flow
See Page 2 Attachment for a list of all wastewater outfalls. mgd
mgd
mgd
mgd
1111111 Treatment Units
Description Code from Final Disposal of Solid or
(include size,flow rate through each treatment unit, Table 2C-1 Liquid Wastes Other Than
retention time,etc.) by Discharge
m
a
0
U
d
N
d
**Outfall Number**
11111 ' in-rations Contri•uting to Flow
Operation Average Flow
P 9
a, mgd
a' mgd
mgd
mgd
- Treatment®_
Description Code from Final Disposal of Solid or
(include size,flow rate through each treatment unit, Table 2C-1 Liquid Wastes Other Than
retention time,etc.) by Discharge
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
e ❑ Yes [] No—>SKIP to Section 4.
N= 3.3 Have you attached a list that identifies each user of the treatment works?
❑ Yes ❑ No
EPA Form 3510-2C(Revised 3-19) Page 2

Section 3.1 —Average Flows and Treatment
Operations Contributing to Flow
Operation Average Flow
Process Wastewater 0.3109 MGD
Sanitary Wastewater 0.0027 MGD
001 Non-Contact Cooling Water 0.0230 MGD
Boiler Blowdown 0.0004 MGD
Groundwater 0.0650 MGD
Stormwater 0.0300 MGD
Steam Condensate 0.0288 MGD
002 Fire Protection Water 0.1224 MGD
*Stormwater and Groundwater 0.2000 MGD
005 *Stormwater and Groundwater 0.0158 MGD
006 *Stormwater and Groundwater 0.0115 MGD
008 *Stormwater and Groundwater 0.0144 MGD
009 *Stormwater and Groundwater 0.0094 MGD
010 *Stormwater and Groundwater 0.0101 MGD
011 *Stormwater and Groundwater 0.0079 MGD
012 *Stormwater and Groundwater 0.0079 MGD
*Discharges of impacted groundwater and stormwater runoff are commingled in the surface water drainage channels.The
estimated flows for Outfalls 005,006,and 008-012 were based on the information provided to DWM in the Final RFI Report.
Treatment Units
Discharge to surface water 4-A
Grinding(comminutors) 1-L
Aeration Basin 3-B
2 Holding Ponds 3-G
001 2 Clarifiers for Sedimentation 1-U
Flocculation 1-G
Coagulation 2-D
Sand Drying Beds 1-R,5-8
Sludge Disposal via Landfill 5-Q
002 Discharge to surface water 4-A
005 Discharge to surface water 4-A
006 Discharge to surface water 4-A
008 Discharge to surface water 4-A
009 Discharge to surface water 4-A
010 Discharge to surface water 4-A
011 Discharge to surface water 4-A
012 Discharge to surface water 4-A
Page 2-Attachment

EPA Identification Number NPDES Permit Number =acility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
SECTION 4.INT RMITT NT FLOWS(40 CFR 122.21(g)(4))
4.1 Except for storm runoff,leaks,or spills,are any discharges described in Sections 1 and 3 intermittent or seasonal?
❑✓ Yes *See note below. [] No 4 SKIP to Section 5.
4.2 Provide information on intermittent or seasonal flows for each applicable outfall.Attach additional pages, if necessary.
Outfall Operation Frec uency Flow Rate
Number (list) Average Average Long-Term Maximum Duration
DaysNVeek MonthslYear Average Daily
Fire protection water from 1 days/week 12 months/year 0.1224 mgd 0.1224 mgd <1 days
weekly testing of pumps
0 002 days/week months/year mgd mgd days
days/week months/year mgd mgd days
a)
E
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
SECTION 5.PROOUCTIiiN 40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs)promulgated by EPA under Section 304 of the CWA apply to your facility?
❑✓ Yes ❑ No 4 SKIP to Section 6.
5.2 Provide the followin information on applicable ELGs.
w
ELG Cate o ELG Subcategory Regulatory Citation
a) Organic Chemicals Plastics and 40 CFR Part 414
-ctThermoplastic Resins
Q
Synthetic Fibers Subpart D
Organic Chemicals Plastics and Direct Discharge Point Sources That Use End-of-Pipe 40 CFR Part 414
Synthetic Fibers Biological Treatment Subpart I
5.3 Are any of the applicable ELGs expressed in terms of production(or other measure of operation)?
❑ Yes [] No 4 SKIP to Section 6.
0
5.4 Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
J Outfall Operation,Product,or Material Quantity per Day Unit of
Number Measure
a)
co
CO
0
V
0
O
d
`Groundwater is an intermittent discharge from all wastewater outfalls.Groundwater discharges are not included in Section 4.2 because they
are heavily dependent on rain events.Additionally,all groundwater discharges are commingled with stormwater runoff.
EPA Form 3510-2C(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number =acility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
SECTION 6.IMPROVEM NTS(40 CFR 122.21(g)(6))
6.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑✓ Yes [] No 4 SKIP to Item 6.3.
6.2 Briefly identify each applicable project in the table below.
Affected Final Compliance Dates
Brief Identification and Description of Outfalls Source(s)of
o Project (list outfall Discharge Required Projected
Enumber)
Schedule of compliance for new metal 002-Steam condensate,fire See Section 11
c limits.See Section 11 of the application 002 and 003 protection water,stormwater, 4/1/2022 of application
narrative for additional information. and groundwater narrative.
w
a>
003-Stormwater not
associated with industrial
rn activity
6.3 Have you attached sheets describing any additional water pollution control programs(or other environmental projects
that may affect your discharges)that you now have underway or planned?(optional item)
❑ Yes ❑✓ No ✓❑ Not applicable
SECTION 7.EFFLUENT N''INTAKE CHARACTERISTICS(40 CFR 122.21(g)i7))
See the instructions to determine the pollutants and parameters you are required to monitor and,in turn,the tables you must
complete. Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
7.1 Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for any of
your outfalls?
❑ Yes [] No 4 SKIP to Item 7.3.
7.2 If yes,indicate the applicable outfalls below.Attach waiver request and other required information to the application.
Outfall Number Outfall Number Outfall Number
7.3 Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not been
requested and attached the results to this application package'?
✓❑ Yes *See note below. [i No;a waiver has been requested from my NPDES
permitting authority for all pollutants at all outfalls.
Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
7.4 Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry categories
listed in Exhibit 2C-3?(See end of instructions for exhibit.)
❑ Yes [] No 4 SKIP to Item 7.8.
cts
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
❑ Yes ❑ No
7.6 List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)identified
in Exhibit 2C-3.
Primary Industry Category Required GC/MS Fraction(s)
(Check applicable boxes.)
0 Volatile 0 Acid ❑ Base/Neutral 0 Pesticide
0 Volatile 0 Acid ❑Base/Neutral ❑Pesticide
❑Volatile 0 Acid 0 Base/Neutral 0 Pesticide
"As a part of this permit renewal application DuPont Kinston is proposing several permit modifications.Due to timing and sampling being
dependent on measurable storm events,representative sample results for Outfalls 002,005,006,008,009,010,011,and 012 will be submitted
in an application addendum by December 31,2021.
EPA Form 3510-2C(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number =acility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
7.7 Have you checked"Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the
GC/MS fractions checked in Item 7.6?
❑ Yes ❑ No
7.8 Have you checked"Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
where testing is not required?
❑✓ Yes ❑ No
7.9 Have you provided(1)quantitative data for those Section 1,Table B,pollutants for which you have indicated testing is
required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
O Yes [] No
7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?
Yes 4 Note that you qualify at the top of Table B,
-a ❑ then SKIP to Item 7.12. El No
(i)
= 7.11 Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have
o determined testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,
pollutants you have indicated are"Believed Present"in your discharge?
✓❑ Yes 0 No
w Table C.Certain Conventional and Non-Conventional Pollutants
El 7.12 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed on Table C
for all outfalls?
✓❑ Yes [] No
7.13 Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
0 indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
"Believed Present"?
❑✓ Yes [] No
w Table D.Certain Hazardous Substances and Asbestos
7.14 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
all outfalls?
✓❑ Yes [] No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged
and(2)by providing quantitative data,if available?
❑✓ Yes [] No
Table E.2,3,7,13-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you
know or have reason to believe that TCDD is or may be present in the effluent?
❑ Yes 4 Complete Table E. 12] No 4 SKIP to Section 8.
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑ Yes ❑ No
190iRPE:AuRiq•D]:i4ANUFACTURED TOXICS(40 CFR 122.21(g)(9))
8.1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as
d an intermediate or final product or byproduct?
✓❑ Yes [] No 4 SKIP to Section 9.
ci
8.2 List the pollutants below.
•—
1. Acrolein 4. 7.
2• Allyl Alcohol 5. 8.
3. 6. 9.
EPA Form 3510-2C(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number 7acility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
SECTION 9.BI!dGIC L TOXICITY TESTS(40 CFR 122.21(g)(11))
9.1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made
within the last three years on(1)any of your discharges or(2)on a receiving water in relation to your discharge?
0 Yes ❑ No 4 SKIP to Section 10.
9.2 Identif the tests and their .ur.oses below.
Test(s) Purpose of Test(s) Submitted to NPDES Date Submitted
o _ Permitting Authority?
Quarterly test for Chronic Required per NPDES
Toxicity to Ceriodephnia Permit No.NC0003760 C� Yes ❑ No Submitted Quarterly
0
m ❑ Yes ❑ No
❑ Yes ❑ No
141X•11[61MD dTU:LIsT ANALYSES(40 CFR 122.21(g)(12 )
10.1 Were any of the analyses reported in Section 7 performed by a contract laboratory or consulting firm?
❑✓ Yes 0 No 4 SKIP to Section 11.
10.2 Provide information for each contract laboratory or consulting firm below.
Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
Name of laboratory/firm Meritech Labs Inc. Microbac Laboratories Inc. Environmental 1 Inc.
Nc Lab Certification No.165 NC Lab Certification No.11 NC Lab Certification No.10
;, Laboratory address 642 Tamco Rd. 2592 Hope Mills Rd. PO Box 7085
Reidsville,NC 27320 Fayetteville,NC 28306 114 Oakmont Dr.
Greenville,NC 27835
12
a
c
O Phone number
[phone] (9'19)864-1920
[phone]
Pollutant(s)analyzed Ceriodaphina Dubia Mercury Pollutants in Form 2C
SECTION 11.ADDITION L INFORMATION(40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
0 Yes [] No 4 SKIP to Section 12.
0
E 11.2 List the information requested and attach it to this application.
c 1 lnstream Hardness Test Results 4
See Section 13 of application narrative..
c
0
+_ 2. Mercury Minimization Plan Results 5
-0 See Section 12 of application narrative.
3. 6.
EPA Form 3510-2C(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Site OMB No.2040-0004
SECTION 12.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
12.1 In Column 1 below,mark the sections of Form 2C that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
✓❑ Section 1:Outfall Location ❑ w/attachments
❑✓ Section 2: Line Drawing ✓❑ w/line drawing ❑ w/additional attachments
ui Section 3:Average Flows and w/list of each user of
1.=1Treatment ❑ w/attachments ❑ privately owned treatment
works
❑✓ Section 4:Intermittent Flows ❑ wl attachments
❑✓ Section 5: Production ❑ w/attachments
w/optional additional
❑✓ Section 6: Improvements ❑ w/attachments ❑ sheets describing any
additional pollution control
plans
❑ w/request for a waiver and ❑ w/explanation for identical
supporting information outfalls
d w/small business exemption w/other attachments
d ❑ request ❑
co— ❑ Section 7: Effluent and Intake ❑✓ w/Table A ❑✓ w/Table B
Characteristics
0
❑✓ w/Table C ❑✓ w/Table D
d ✓ w/Table E w/analytical results as an
c� ❑ ❑ attachment
✓❑ Section 8: Used or Manufactured ❑ w/attachments
(1) Toxics
Section 9: Biological Toxicity
-c
❑ Tests ❑ w/attachments
U
❑✓ Section 10:Contract Analyses ❑ w/attachments
✓❑ Section 11:Additional Information ❑ w/attachments
❑ Section 12:Checklist and ❑ w/attachments
Certification Statement
12.2 Certification Statement
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system,or those persons directly
responsible for gathering the information,the information submitted is,to the best of my knowledge and belief,true,
accurate,and complete.I am aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Emily Price Plant Manager
Signature Date signed
a , 74,,,‘
, ,
EPA Form 3510-2C(Revised 3-19) Page 7

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE A.CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(iii)jl-
Effluent Intake
Waiver (Optional)
Pollutant Requested Units Maximum Maximum Long-Term
(it applicable) (specify) Daily Monthly Average Daily Number of Long-Term Number of
Discharge Discharge Discharge l Analyses Average Value Analyses
(required) (if available) (if available)
❑ Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall. II
Biochemical oxygen demand
Concentration mg/L 30.02 10.56 3.12 217
1' (BODs) ❑ Mass lb/day 72.66 29.49 7.66 217
Chemical oxygen demand Concentration mg/L <20 1
2' CI(COD) Mass
Concentration mg/L 3.49 1
3. Total organic carbon(TOC) 0
Mass
I
Concentration mg/L 31.03 19.22 5.80 217
4. Total suspended solids(TSS) ❑
Mass lb/day 84.07 57.02 15.18 217
Concentration mg/L 7.97 7.97 0.40 50
5. Ammonia(as N) El
Mass lb/day 15.26 15.26 0.77 50
6. Flow ❑ Rate MGD 2.89 0.50 0.33 1522
Temperature(winter) ❑ °C °C 25.10 22.88 15.05 145
7. -
Temperature(summer) ❑ °C °C 28.10 26.93 24.36 72
pH(minimum) CIStandard units S.U. 7.19 7.23 7.27 217
8. - •
pH(maximum) ❑ Standard units S.U. 7.32 7.29 7.27 217
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 9

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units I Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Discharge Discharge Daily of Average of
Discharge vw�na�yc y�
(required) (if available) Discharge I Analyses Value Analyses
(if available) I
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections
2 through 5 of this table. Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
Antimony,total ❑ Concentration ug/L 3 1
1.1 El El
(7440-36-0) Mass
Arsenic,total Concentration
1.2 0 El
(7440-38-2) Mass
Beryllium,total1=1 Concentration
1.3 (7440-41-7) Mass
Cadmium,total Concentration
1.4 El 0
(7440-43-9) Mass
Chromium,total rr ,-, ,—, Concentration ug/L <5 <5 <3.5 2
1.5 (744047-3) u u u Mass Ib/day <0.70 <0.70 <0.58 2
Copper,total Concentration ug/L <10 <10 6.5 2
1.6 I=1 El
(7440-50-8) Mass lb/day <0.02 <0.02 0.01 2
Lead,total Concentration mg/L <2 <2 <1 2
1.7 (7439-92-1) Mass lb/day <4.32 <4.32 <2.17 2
Mercury,total 0 Concentration ng/L 0.563 1
1.8 (7439-97-6) Mass _ _
Nickel,total Concentration ug/L <10 <10 <7.5 2
1'9 (7440-02-0) Mass lb/day <0.04 <0.04 <0.02 2
1.10 Selenium,total Concentration
(7782-49-2) Mass
Silver,total 0 0 ✓ Concentration
1.11 (7440-22-4) �Mass
EPA Form 3510-2C(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
1 Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant'Parameter Testing Units I I Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long-rm Number
Present Absent Daily Monthly Daily of Average
o of
. I I "equiable` i "able Discharge Analyses Value" Analyses
i (required) (if available)
I I (if available)
1.12 Thallium,total ElConcentration
(7440-28-0) Mass
Zinc,total El Concentration ug/L 19 19 15 2
1.13 (7440-66-6) Mass lb/day 0.07 0.07 0.05 2
1.14 Cyanide,total ❑ 0 ❑ Concentration ug/L <5 <5 <5 2
(57-12-5) Mass lb/day <1.16 <1.16 <0.58 2
Concentration mg/L 0.010 0.009 0.006 4
1.15 Phenols,total 0 ❑✓ CIMass lb/day 0.036 1 0.024 0.021 4
Section 2.Organic Toxic Pollutants(GCIMS Fraction-Volatile Compounds)
Acrolein 0 Concentration ug/L <100 <100 65.39 16
2.1 (107-02-8) Mass lb/day <0.47 <0.47 0.18 16
Acrylonitrile ❑ Concentration mg/L 0.050 0.050 0.040 4
2.2 El I=1
/A/7 A 1 A\
(107-13-1) IVIaSs lb/day 0.234 0.234 0.181 4
2.3 Benzene ❑ Concentration mg/L 0.005 0.005 0.004 4
0 CI
(71-43-2) Mass lb/day 0.023 0.023 0.018 4
2.4 Bromoform 0Concentration
El El
(75-25-2) Mass
Carbon tetrachloride ❑ Concentration mg/L 0.005 0.005 0.004 4
2.5 (56-23-5) Mass lb/day 0.023 0.023 0.018 4
2.6 Chlorobenzene ❑ Concentration mg/L 0.005 0.005 0.004 4
(108-90-7) Mass lb/day 0.023 0.023 0.018 4
Chlorodibromomethane 0 Concentration
2.7 (124-48-1) El El
Mass
2.8 Chloroethane 0 Concentration mg/L 0.018 0.018 0.010 4
(75-00-3) Mass lb/day 0.047 0.047 0.037 4
EPA Form 3510-2C(Revised 3-19) Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Testing I Units i I Long-Term 1
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Discharge Daily of nvar�nn of
Discharge Discharge Avenge
(required) I (if available) Discharge Analyses Value Analyses
(if available)
2-chloroethylvinyl ether ✓ Concentration
2'9 (110-75-8) Mass
Concentration mg/L 0.005 0.005 0.004 4
2.10 Chloroform(67-66-3) Mass lb/day 0.023 0.023 0.018 4
2.11 Dichlorobromomethane 0 Concentration
(75-27-4) Mass
2.12 1,1-dichloroethane 0 Concentration mg/L 0.005 0.005 0.004 4
(75-34-3) Mass lb/day 0.023 0.023 0.018 4
2.13 1,2-dichloroethane 0 Concentration mg/L 0.005 0.005 0.004 4
(107-06-2) Mass lb/day 0.023 0.023 0.018 4
2.14 1,1-dichloroethylene 0 Concentration mg/L 0.005 0.005 0.004 4
(75-35-4) Mass lb/day 0.023 0.023 0.018 4
215 1,2-dichloropropane 0 Concentration mg/L 0.005 0.005 0.004 4
(78-87-5) Mass lb/day 0.023 0.023 0.018 4
2.16 1,3-dichloropropylene 0 Concentration mg/L 0.005 0.005 0.004 4
(542-75-6) Mass lb/day 0.023 0.023 0.018 4
2.17 Ethylbenzene ❑ Concentration mg/L 0.005 0.005 0.004 4
(100-41-4) Mass lb/day 0.023 0.023 0.018 4
2.18 Methyl bromide 0 Concentration
(74-83-9) Mass
2.19 Methyl chloride 0 Concentration mg/L 0.018 0.018 0.010 4
(74-87-3) Mass lb/day 0.047 0.047 0.037 4
2.20 Methylene chloride 0 El 0Concentration mg/L 0.018 0.018 0.010 4
(75-09-2) Mass lb/day 0.047 0.047 0.037 4
2.21 1,1,2,2-tetrachloroethane El Concentration
0 0(79-34-5) Mass
EPA Form 3510-2C(Revised 3-19) Page 13

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Testing I Units I Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long-
g Number
Present Absent Daily Monthly Daily of Term of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
(if available)
Tetrachloroethylene 0 Concentration mg/L 0.009 0.009 0.005 4
2.22 El El
(127-18-4) Mass lb/day 0.023 0.023 0.018 4
2.23 Toluene Concentration mg/L 0.009 0.009 0.005 4
ID El El
(108-88-3) Mass lb/day 0.023 0.023 0.018 4
1,2-trans-dichloroethylene Concentration mg/L 0.005 0.005 0.004 4
2.24 (156-60-5) Mass lb/day 0.023 0.023 0.018 4
2.25 1,1,1-trichloroethane ❑ Concentration mg/L 0.005 0.005 0.004 4
El El(71-55-6) Mass lb/day 0.023 0.023 0.018 4
2.26 1,1,2-trichloroethane Concentration mg/L 0.005 0.005 0.004 4
(79-00-5) Mass lb/day 0.023 0.023 0.018 4
2.27 Trichloroethylene Concentration mg/L 0.009 0.009 0.005 4
(79-01-6) Mass lb/day 0.023 0.023 0.018 4
2.28 Vinyl chloride 0 Concentration mg/L 0.018 0.018 0.010 4
El I=1
(75-01-4) Mass lb/day 0.047 0.047 0.037 4
Section 3.Organic Toxic Pollutants(GCIMS Fraction-Acid Compounds)
3.1 2-chlorophenol Concentration mg/L 0.010 0.010 0.008 4
(95-57-8) Mass lb/day 0.047 0.047 0.037 4
2,4-dichlorophenol Concentration mg/L 0.010 0.010 0.008 4
3.2 (120-83-2) Mass lb/day 0.047 0.047 0.037 4
3.3 2,4-dimethylphenol Concentration mg/L 0.010 0.010 0.008 4
(105-67-9) Mass lb/day 0.047 0.047 0.037 4
3 4 4,6-dinitro-o-cresol ❑ Concentration mg/L 0.010 0.010 0.008 4
(534-52-1) Mass lb/day 0.047 0.047 0.037 4
2,4-dinitrophenol Concentration mg/L 0.050 0.026 0.025 4
3.5 (51-28-5) Mass lb/day 0.178 0.122 0.102 4
EPA Form 3510-2C(Revised 3-19) Page 14

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Testing Units Long-Term
Long-
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum q ( p N) Average Numberrm Number
Present Absent Discharge
Monthly Daily of Average
a of
vwciiaryc Discharge
..:alue..
(required) (if available) Discharge Analyses Value Analyses
(if available)
3.6 2-nitrophenol Concentration mg/L o.010 0.010 0.008 4
(88-75-5) Mass lb/day 0.047 0.047 0.037 4
4-nitrophenol Concentration mg/L 0.050 0.026 0.025 4
3.7 (100-02-7) Mass lb/day 0.178 0.122 0.102 4
3 8 p chloro m cresol 0 0 Concentration
(59-50-7) Mass
3 9 Pentachlorophenol ❑ ElConcentration
El
(87-86-5) Mass
3.10 Phenol Concentration
108-95-2
( ) Mass
3.11 2,4,6-trichlorophenol ❑ ❑ Concentration
(88-05-2) Mass
Section 4.Organic Toxic Pollutants(GCIMS Fraction-Base/Neutral Compounds)
4.1 Acenaphthene ❑ 00 Concentration mg/L 0.010 0.009 0.003 6
(83 32 9) Mass lb/day 0.041 0.039 0.015 6
4 2 Acenaphthylene Concentration mg/L o.010 0.009 0.003 6
(208-96-8) Mass _ lb/day 0.041 0.039 0.015 6
4.3 Anthracene Concentration mg/L 0.010 0.009 0.003 6
(120-12-7) Mass Ib/day 0.041 o.c39 0.015 6
4.4 Benzidine Concentration
El 0 CI
(92-87-5) Mass
4.5 Benzo(a)anthracene CI ❑ Concentration ug/L <2 <2 <0.561 4
(56-55-3) Mass lb/day <0.0071 <0.0004 <0.0019 4
4.6 Benzo(a)pyrene El Concentration ug/L <2 <2 <0.561 4
(50-32-8) Mass lb/day <0.0036 <0.0036 <0.0009 4
EPA Form 3510-2C(Revised 3-19) Page 15

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
PollutantlParameter Testing Units I Long-Term I I
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Daily of Average
o of
VIJVII'"�i ✓I.7MIIP11,�i •-v.v.Jv
(required) (if available) Discharge Analyses I Value Analyses
(if available)
4 7 3,4-benzofluoranthene ❑ Concentration ug/L <2 <2 <0.56 4
0 CI
(205-99-2) Mass lb/day <0.0036 <0.0036 <0.0009 4
Benzo(ghi)perylene ✓ Concentration
4.8 (191-24-2) Mass
Benzo(k)fluoranthene Concentration mg/L 0.010 0.009 0.003 6
4'9 (207-08-9) Mass Ib/day 0.041 0.039 0.014 6
4.10 Bis(2-chloroethoxy)methane 0 El 0 Concentration
(111-91-1) Mass
4.11 Bis(2-chloroethyl)ether El El 0 Concentration
(111-44-4) Mass
4.12 Bis(2-chloroisopropyl)ether Concentration
(102-80-1) Mass
Bis(2-ethylhexyl)phthalate Concentration mg/L 0.020 0.019 0.017 4
4.13 El 0
(117-81-7) Mass lb/day 0.106 0.089 0.077 4
4.14 4-bromophenyl phenyl ether 0 El 0 Concentration
(101-55-3) Mass
4.15 Butyl benzyl phthalate 0 0 0 Concentration
(85-68-7) Mass
4.16 2-chloronaphthalene El 0 Concentration
(91-58-7) Mass
4-chlorophenyl phenyl ether 0 Concentration
4.17 El El
(7005-72-3) Mass
Chrysene 0 Concentration mg/L 0.002 0.001 0.001 6
4.18 (218 01 9) Mass lb/day 0.007 0.004 0.003 6
4.19 Dibenzo(a,h)anthracene � Concentration ug/L <2 <2 <0.561 4
0 CI(53-70-3) Mass lb/day <0.004 <0.002 <0.001 4
EPA Form 3510-2C(Revised 3-19) Page 16

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS-(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
PollutantlParameter Testing I Units i Maximum I Maximum Long-Term Long-
(and CAS Number,if available) Required Believed Believed (specify) Average Number Number
Present Absent Discharge
Monthly Daily of Average
o of
"""'a'y` ""l"U' ` Discharge Analyses """'" Analyses
(required) (if available) g Value
(if available)
4.20 1,2-dichlorobenzene Concentration mg/L 0.005 0.005 0.004 4
(95-50-1) Mass lb/day 0.023 0.023 0.018 4
4.21 1,3-dichlorobenzene Concentration mg/L 0.005 0.005 0.004 4
(541-73-1) Mass lb/day 0.023 0.023 0.018 4
4.22 1,4-dichlorobenzene ❑ Concentration mg/L 0.005 0.005 0.004 4
(106-46-7) Mass lb/day 0.023 0.023 0.018 4
4.23 3 3-dichlorobenzidine o 0Concentration
(91-94-1) Mass
4.24 Diethyl phthalate 0 0 ❑ Concentration mg/L 0.010 0.010 0.008 4
(84-66-2) Mass lb/day 0.047 0.047 0.037 4
4.25 Dimethyl phthalate CI 0 Concentration mg/L 0.010 0.010 0.008 4
(131-11-3) Mass lb/day 0.047 0.047 0.037 4
Di-n-butyl phthalate Concentration mg/L 0.010 0.010 0.008 4
4.26 (84 74 2) Mass lb/day 0.047 0.047 0.037 4
4.27 2,4-dinitrotoluene 0 Concentration mg/L 0.010 0.010 0.008 4
(121-14-2) Mass lb/day 0.047 0.047 0.037 4
4.28 2,6-dinitrotoluene 0 Concentration mg/L 0.018 0.018 0.010 4
El El
(606-20-2) Mass lb/day 0.047 0.047 0.037 4
4.29 Di-n-octyl phthalate ❑ CI Concentration
(117-84-0) Mass
1,2-Diphenylhydrazine ✓ Concentration
4.30 ID I=1
(as azobenzene)(122-66-7) Mass
4.31 Fluoranthene a Concentration mg/L 0.010 0.009 0.004 6
El
(206-44-0) Mass lb/day 0.041 0.039 0.018 6
4.32 Fluorene Concentration mg/L 0.010 0.009 0.004 6
(86-73-7) Mass lb/day 0.041 0.039 0.018 6
EPA Form 3510-2C(Revised 3-19) Page 17

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent
(optional)
PollutantParameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Discharge Daily Monthly^ Daily of ATorm o of
Discharge
.:.aloe..
(required) (if available) Discharge Analyses Value Analyses
(if available)
Hexachlorobenzene Concentration ug/L <2 <2 <2 3
4.33 (118-74-1) Mass lb/day <0.009 <0.009 <0.007 3
4.34 Hexachlorobutadiene Concentration mg/L 0.010 , 0.010 0.008 4
(87-68-3) Mass lb/day 0.047 0.047 0.037 4
4.35 Hexachlorocyclopentadiene ❑ Concentration
(77-47-4) Mass
Hexachloroethane Concentration mg/L 0.010 0.010 0.008 4
4.36 (67-72-1) Mass lb/day 0.047 0.047 0.037 4
4.37 Indeno(1,2,3-cd)pyrene O 0 Concentration ug/L <2 <2 <0.57 4
(193-39-5) Mass lb/day <0.004 <0.004 <0.001 4
4.38 Isophorone 0Concentration
(78-59-1) Mass
Naphthalene t Concentration mg/L 0.010 0.009 0.004 6
4.39 0 El El
(91 20 3) Mass lb/day 0.041 0.039 0.015 6
Nitrobenzene Concentration mg/L 0.018 0.018 0.010 4
4.40 (98-95-3) Mass Ib/day 0.047 0.047 0.037 4
4.41 N-nitrosodimethylamine Concentration
(62-75-9) Mass
4.42 N-nitrosodi-n-propylamine ElConcentration
El ID
(621-64-7) Mass
4.43 N-nitrosodiphenylamine 0 0 Concentration
(86-30-6) Mass
4.44 Phenanthrene Concentration mg/L 0.010 0.009 0.004 6
(85-01-8) Mass lb/day 0.041 0.039 0.018 6
Pyrene Concentration mg/L 0.010 0.009 0.004 6
4.45 0 El El
(129-00-0) Mass lb/day 0.041 0.039 0.018 6
EPA Form 3510-2C(Revised 3-19) Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units I Long-Term I
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Mil Discharge.. Discharge
, Daily of Avnrano of
Discharge acharge .. . �
(required) (if available) Discharge Analyses Value Analyses
(if available)
4.46 1,2,4-trichlorobenzene CI ❑ ❑ Concentration ug/L <2 <2 <2 3
(120-82-1) Mass lb/day <0.005 <0.005 <0.004 3 _
Section 5.Organic Toxic Pollutants(GC/MS Fraction—Pesticides)
Aldrin Concentration
5.1 (309-00-2) El El Mass
a-BHC Concentration
5.2 (319-84-6) 0 CI Mass
Q-BHC Concentration
5.3 (319-85-7) 0 ❑ ❑ Mass
y-BHC Concentration
5.4 (58 89 9) CI CI
5.4 Mass
6-BHC Concentration
5.5 (319-86-8) CI CI Mass
5.6 Chlordane ❑ ❑ ElConcentration
(57-74-9) Mass
5.7 4,4'-DDT 0
❑ ✓❑ Concentration
(50-29-3) Mass
5.8 4,4'-DDE CI CI Concentration
(72-55-9) Mass
5.9 4,4'-DDD CI ❑ ❑ Concentration
(72-54-8) Mass
Dieldrin Concentration
5.10 •
(60-57-1) CI CI Mass
5.11 a-endosulfan CI ID ❑✓ Concentration
(115-29-7) Mass
EPA Form 3510-2C(Revised 3-19) Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Testing I Units Maximum Maximum Long-Term Long-
(and CAS Number,if available) Required Believed Believed (specify) Average Number Number
Present Absent Daily Monthly Term
Discharge I,:....hare Daily of Average of
vw�na�yc vw�naiyc 5�
(required) (if available) Discharge Analyses Value
Analyses
(if available)
5.12 R-endosulfan 0 ElConcentration
El
(115-29-7) Mass
Endosulfan sulfate Concentration
5.13 0 El El
(1031-07-8) Mass
5.14 Endrin Concentration
0 El El
(72-20-8) Mass
Endrin aldehyde Concentration
5.15 IEI El
(7421-93-4) Mass
5.16 Heptachlor El 0 Concentration
(76-44-8) Mass _
Heptachlor epoxide Concentration
5.17 (1024-57-3) ❑ 0 E Mass
PCB-1242 Concentration
5.18 (53469-21-9) ❑ ❑ ✓❑ Mass
PCB-1254 Concentration
5.19 (11097-69-1) ❑ ❑ ✓❑ Mass _
PCB-1221 Concentration
5.20 (11104-28-2) ❑ ❑ 0 Mass
PCB-1232 Concentration
5.21 (11141-16-5) ❑ ❑ ✓❑ Mass
PCB-1248 Concentration
5.22 (12672-29-6) ❑ ❑ ✓❑ Mass
PCB-1260 Concentration
5.23 (11096-82-5) ❑ ❑ ❑✓ Mass
PCB-1016 Concentration
5.24 (12674-11-2) ❑ ❑ ✓❑ Mass
EPA Form 3510-2C(Revised 3-19) Page 20

EPA Identification Number NPDES Permit Number I Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 i NC0003760 i DuPont Kinston Plant I 001 OMB No.2040-0004
_TAe• _ •'f ' ALS; ±1` f - OTAL PH `°.—77, 1'.ITV'7 i2-7 ;-f---• • ! - r_ . 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent (Intake
al)
_ Pollutant/Parameter Toefinn I I nit l Ln _Term I 1
i vni�S
Maximum Maximum Long-Term Long-
(and CAS Number,if available) Required Believed Believed (specify) Average Number NumberMINIM I
Present Absent Daily Monthly Term
Dail of DIJcharga DIOVIIUrya y Overage
I Discharge Analyses I " y- Analyses I
(required) (if available) g- I Value I i
I I (if available) I I
Toxaphene Concentration
5.25 (8001-35-2) ❑ ❑ ✓❑ Mass
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 21

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence
(check one) Effluent Intake
(Optional)
Pollutant I Units I I Maximum Long-Term I I
iii
Believed Believed (specify) Maximum Daily Monthly Average Daily Number of Long-Term Number of
Present Absent Discharge Discharge Discharge Analyses Average Analyses
required`
ME4 (if available) I (if available) Value
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for I
each pollutant.
❑ Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for
each pollutant.
1 Bromide Concentration
(24959-67-9) 0 ❑ Mass
Chlorine,total Concentration
2. residual 0 ❑ Mass i
3. Color ❑ 0 Concentration Cu 5 1
Mass
4. Fecal coliform ❑ Concentration #/10o mL 5,600 1,891 229 215
Mass
5 Fluoride Concentration mg/L 0.37 1
(16984-48-8) CI 0 Mass
6 Nitrate nitrite ❑ Concentration mg/L 14.64 4.85 0.63 218
Mass lb/day 23.55 7.31 1.23 218
Nitrogen,total ❑ Concentration mg/L 17.55 8.64 1.91 217
7' organic(as N) Mass lb/day 29.28 14.99 4.43 217
Concentration
8. Oil and grease 0 ✓❑
Mass
Phosphorus(as Concentration mg/L 5.15 1.48 0.34 213
9' P),total(7723-14-0) ❑ Mass lb/day 10.16 2.79 0.83 213
10. Sulfate(as SO4) 0 0
Concentration mg/L 73.3 1
(14808-79-8) Mass
Concentration
11. Sulfide(as S) 0 0
Mass
EPA Form 3510-2C(Revised 3-19) Page 23

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR_122.21(g)(7)(vi))1
Presence or Absence
(check one) Effluent Intake
(optional)
- Pollutant Units Maximum Long-Term
Believed Believed (specify) Maximum Daily Long-Term
Present Absent Discharge Monthly Average Daily Number of Average Number of
Discharge Discharge Analyses Analyses
(required) (if available) (if available) Value
12. Sulfite(as SO3) ❑ ❑ Concentration
(14265-45-3) Mass
13. Surfactants 0Concentration mg/L <0.025 1
Mass
14. Aluminum,total Concentration
(7429-90-5) Mass
15. Barium,total ❑ ❑ Concentration
(7440-39-3) Mass
16. Boron.total ❑ ❑✓ Concentration
(7440-42-8) Mass
17. Cobalt,total ❑ ✓❑ Concentration
(7440-48-4) Mass
,o
Iron,total r n� Concentration
"'' (7439-69-6) u u Mass
Magnesium,total Concentration ug/L 630 1
19' (7439-95-4) o
Mass
Molybdenum, Concentration
20. total El 0 Mass
(7439-98-7)
Manganese,total Concentration
Z'' (7439-96-5) Mass
22 Tin,total ❑ ❑✓ Concentration
(7440-31-5) Mass
23. Titanium,total ✓❑ ❑ Concentration mg/L 0.012 1
(7440-32-6) Mass
EPA Form 3510-2C(Revised 3-19) Page 24

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence 1
(check one) Effluent Intake
1 Units (Optional)
Pollutant Believed Believed (specify) Maximum Daily Maximum Long-Ter... Long-Term
Present Absent Discharge Monthly Average Daily Number of Average Number of
Discharge Discharge Analyses Value Analyses MI
(required) I (if available) I (if available) I Y Q1tG 1
24. Radioactivity
Alpha,total El ❑�
Concentration i
Mass
Concentration
Beta,total 0 ❑✓
Mass
Concentration
Radium,total ❑ ❑✓ Mass —
Concentration
Radium 226,total 0 ❑✓
Mass
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 25

This page intentionally left blank.

EPA Identification Number NPDES Permit Number I Facility Name I Outfall Number Form Approved 03/05/19
NCD003190386 l NC0003760 I DuPont Kinston Plant 1 001 OMB No.2040-0004
TA: I Z _ , ,0.0d:tslOPISIC ifTI�3 1:[IFLI S 0 ' 0 - - (•)(I)(viI I
Presence or Absence I
Pollutant (check one) -I Reason Pollutant Believed Present in Discharge Available Quantitative Data
Believed I Believed I (specify units)
Present I Absent I j l
1. Asbestos ❑ ✓❑ I
2. Acetaldehyde ❑ ❑✓
3. Allyl alcohol ✓❑ ❑ Byproduct of polymer production process
4. Allyl chloride ❑ ❑�
5. Amyl acetate ❑ ❑✓
6. Aniline ❑ ✓❑
7. Benzonitrile ❑ ✓❑
8. Benzyl chloride ❑ ✓❑
9. Butyl acetate ❑ ❑✓
10. Butylamine ❑ ❑✓
11. Captan ❑ ❑✓ I
12. Carbaryl ❑ ❑✓
13. Carbofuran ❑ E
14. Carbon disulfide ❑ ✓❑
15. Chlorpyrifos ❑ ✓❑
16. Coumaphos ❑ ✓❑
17. Cresol 0 ✓❑
18. Crotonaldehyde ❑ ✓❑
19. Cyclohexane ❑ ❑✓
EPA Form 3510-2C(Revised 3-19) Page 27

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant ow. OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40-CFR 122,21(,)(7)(vnNom
-
IIIIIII Presence or Absence
Pollutant (check one) Reason Pollutant Believed Present in Discharge Available Quantitative Data
Believed Believed (specify units)
Present Absent j
L Ii
p2,4-D(2,4-dichlorophenoxyacetic acid) ❑ ✓❑ I
21. Diazinon ❑ ✓❑
22. Dicamba ❑ ❑✓
23. Dichlobenil 0 ❑✓
24. Dichlone 0 ❑✓
25. 2,2-dichloropropionic acid 0 ✓❑
26. Dichlorvos ❑ ✓❑
27. Diethyl amine 0 ✓❑ l
28. Dimethyl amine ❑ ❑✓
29. Dintrobenzene 0 ❑✓
30. Diquat ❑ ✓❑
31. Disulfoton ❑ ✓❑
32. Diuron 0 ❑✓
33. Epichlorohydrin ❑ ❑✓
34. Ethion ❑ ❑✓
35. Ethylene diamine 0 ❑✓
36. Ethylene dibromide ❑ ❑✓
37. Formaldehyde ❑ ❑✓
38. Furfural ❑ ❑
EPA Form 3510-2C(Revised 3-19) Page 28

EPA Identification Number NPDES Permit Number Facility Name I Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant I 001 OMB No.2040-0004
TABLE-57CERTARDOUS-SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vi))1_
Presence or Absence
Pollutant (check one) Reason Pollutant Believed Present in Discharge Available Quantitative Data
Believed Believed (specify units)
Present Absent
39. Guthion ❑ 0
40. Isoprene ❑ 0
41. Isopropanolamine ❑ ❑✓
42. Kelthane ❑ 0
43. Kepone ❑ El
44. Malathion 0 0
45. Mercaptodimethur ❑ 0
46. Methoxychlor 0 0
47. Methyl mercaptan 0 0
48. Methyl methacrylate 0 0
49. Methyl parathion 0 0
50. Mevinphos ❑ 0
51. Mexacarbate ❑ 0
52. Monoethyl amine 0 0
53. Monomethyl amine 0 0
54. Naled ❑ ✓❑
55. Naphthenic acid 0 0
56. Nitrotoluene ❑ 0
57. Parathion 0 0
EPA Form 3510-2C(Revised 3-19) Page 29

j EPA Identification Number NPDES Permit Number Facility Name I Outfall Number Form Approved 03/05/19
OMB No.2040-0004
NCD003190386 NC0003760 DuPont Kinston Plant 001
1T_17I114�]S•T-4 11J k 1T.t7.1-11 \;I•3 f� • er
Presence or Absence
Pollutant (check one) Available Quantitative Data
Reason Pollutant Believed Present in Discharge
Believed Believed (specify units)
Present I Absent
58. Phenolsulfonate ❑ [I
59. Phosgene l:"l
60. Propargite ❑ ✓❑
61. Propylene oxide ❑ ✓❑
62. Pyrethrins ❑ ✓❑
63. Quinoline ❑ ✓❑
64. Resorcinol ❑ ❑✓
65. Strontium ❑ ✓❑
66. Strychnine ❑ ✓❑
67. Styrene ❑ ❑✓
68 2,4,5-T(2,4,5-trichiorophenoxyacetic ❑
El
acid)
69. TDE(tetrachlorodiphenyl ethane) ❑ ❑✓
70. 2,4,5-TP[2-(2,4,5-trichlorophenoxy) n ❑✓
propanoic acid]
71. Trichlorofon ❑ ❑✓
72. Triethanolamine ❑ ❑✓
73. Triethylamine ❑ ❑✓
74. Trimethylamine ❑ ❑✓
75. Uranium ❑ ❑✓
76. Vanadium ❑ ❑✓
EPA Form 3510-2C(Revised 3-19) Page 30

EPA Identification Number NPDES Permit Number 1 Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 i DuPont Kinston Plant 001 OMB No.2040-0004
TABLE D-CERTAIN-HAZARDOUS SUBSTANCE AND-ASBESTOS(40 R-122.21(g)(7)(vii))1
Presence or Absence
ME Pollutant (check one) Reason. Pollutant Believed Present in Discharge Available Quantitative Data
Believed Believed (specify units) I
Present Absent j I
77. Vinyl acetate ❑ ✓❑
78. Xylene El ✓❑ II
79. Xylenol ❑ ✓❑
80. Zirconium ❑ ✓❑
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 31

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EPA Identification Number NPDES Permit Number ! Facility Name Outfall Number Form Approved 03/05/19
NCD003190386 NC0003760 DuPont Kinston Plant 001 OMB No.2040-0004
T'BLE-E.-2,3, ;8 = 'CHLORODIBENZO P DIO�N{2,3,7,8-T !D-('+ R-122.21(g)(7)(viii))
my
TCDD
Mil Presence or
Absence
Pollutant Congeners
ors (check one) Results of Screening Procedure I
Mill Manufactured Believed Believed
® Present Absent
I
2,3,7,8-TCDD I 1 om
im j
CD
C.
D
C
m
0
3
a) EPA Form 3510-2C(Revised 3-19) Page 33