DEQ-CFW_00002881

North Carolina Department of Environmental Quality
Pat McCrory
Governor
Mr, Michael Johnson, PE
Environmental Manager
The Chemours Company FC, LLC
22828 NC Highway 87 W
Fayetteville, NC 28306-7332
Dear Mr. Johnson:
Donald R. van der Vaart
Secretary
October 28, 2015
Subject: NPDES Permit Modification
Permit NC0003573
Ownership Change
Bladen County
Class II Facility
Division personnel have reviewed and approved your request for permit modification of the subject permit, to
reflect new facility ownership effective July 1, 2015. Accordingly, we are enclosing modified pages to reflect
the new ownership. Please insert these modified pages into your current permit. A complete review of this
permit will be conducted with your next permit renewal in 2016. This permit modification is issued pursuant
to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between
North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or as subsequently
amended). If you have any questions, feel free to contact me at 919-807-6390 or via email at
tom.belnick anncdenr.gov.
Sincerely,
40� uw�—
/1 S. Jay Zimmerman. P.G.
Director, Division of Water Resources
cc: NPDES Files
Central Files
Ecopy:
EPA Region 4
DWR Fayetteville Regional Office/Water Quality
DWR Aquatic Toxicology
1601 Mail Service Center, Raleigh, North Carolina 27699-1601
Phone: [phone] Internet: www.nodenr.gov
An Equal Opportunity 1 Affirmative Acdon Employer
DEQ-CFW 00002881

4
Permit NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER' RESOURCES
NPDES PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
The Chemours Company FC, LLC
is hereby authorized to discharge wastewater and stormwater from a facility located at
Chemours Company- Fayetteville Works
22828 NC Highway 87 W
Fayetteville
Bladen County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV
hereof.
The permit modification shall become effective July 1, 2015.
This permit and the authorization to discharge shall expire at midnight on October 31, 2016.
Signed this day October 28, 2015.
6�-n-Jay Zimmerman, P.G.
lfl Director, Division of Water Resources
By Authority of the Environmental Management Commission
DEQ-CFW 00002882

Permit NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby revoked,
and as of this issuance, any previously issued permit bearing this number -is no longer effective.
Therefore, the exclusive authority to operate and discharge from this facility arises under the permit
conditions, requirements, terms, and provisions included herein.
The Chemours Company PC, LLC
is hereby authorized to:
Continue to operate existing wastewater treatment facilities consisting of:
• equalization;
• neutralization;
• aerated pre -digester tank;
• nutrient feed system;
• aeration tank;
• three clarifiers;
• effluent flow measurement;
• DAF unit;
• rotary filter for sludge thickening;
• sludge pump;
• sludge filter press; and
• steam heated sludge dryers.
2. Discharge treated process wastewater from Butacite®, Nafione, SentryGlas®, and PVF
(polyvinyl fluoride resin), process stormwater, sanitary wastewater, and co -neutralized
regenerate from said treated facilities through internal outfall 001;
3. Discharge stormwater, non -contact cooling water, boiler blowdown and condensate,
cooling tower blowdown, and treated wastewater effluent from 001, through outfall 002
at the location specified on the attached map into the Cape Fear River, a class C, WS-IV
water in the Cape Fear River Basin.
DEQ-CFW 00002883

Permit NC0003573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
E.I. DuPont de Nemours & Co.
is hereby authorized to discharge wastewater and stormwater from a facility located at
DuPont - Fayetteville Works
22828 NC Highway 87
Duart Township
Bladen County
to receiving waters designated as the Cape Fear River in the Cape Fear River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, Il, III, and IV
hereof.
The permit shall become effective March 1, 2012.
This permit and the authorization to discharge shall expire at midnight on October 31, 2016.
Signed this day February 6, 2012.
Charles Wakild P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission
DEQ-CFW 00002884

Permit NC0003573
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued permit bearing this number is no longer
effective. Therefore, the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terms, and provisions included herein.
E.I. DuPont de Nemours & Co., Inc.
is hereby authorized to:
Continue to operate existing wastewater treatment facilities consisting of:
• equalization;
• neutralization;
• aerated pre -digester tank;
• nutrient feed system;
• aeration tank;
• three clarifiers;
• effluent flow measurement;
• DAF unit;
• rotary filter for sludge thickening;
• sludge pump;
• sludge filter press; and
• steam heated sludge dryers.
2. Discharge treated process wastewater from Butacite®, Nafion®, SentryGlas®, and PVF
(polyvinyl fluoride resin), process stormwater, sanitary wastewater, and co -neutralized
regenerate from said treated facilities through internal outfall 001;
3. Discharge stormwater, non -contact cooling water, boiler blowdown and condensate,
cooling tower blowdown, and treated wastewater effluent from 001, through outfall 002
at the location specified on the attached map into the Cape Fear River, a class C, WS-1V
water in the Cape Fear River Basin.
DEQ-CFW 00002885

Permit NC0003573
A. (1 ) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 001. Such discharges shall be limited and monitored by the Permittee as specified
below:
Flow (MGD)
BOD5, 20° C
Total Suspended Solids
Temperature
Oil & Grease
pH
40 CFR 414 Subpart I
Average
Maximum
Fr&quency
Type
i,vca�ivi
2.0
Continuous
Recording
Effluent
182.61bs/day
484.71bs/day
3/Week
Composite
Effluent
303.11bs/day
981.5lbs/day
3/Week
Composite
Effluent
Weekly
Grab
Effluent
Monthly
Grab
Effluent
Between 6.0 and 9.0 Standard Units
3/Week
Grab
Effluent
See Condition A. (2)
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
DEQ-CFW 00002886

Permit NC0003573
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUBPART I
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoriniz frequencies established below at outfall 001:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Avery el
Daily
Maximums
Measurement
Fj
Sample
Type
Sample
Location
Acenaphthene
0.166
0.444
See Note 2
Grab
Effluent
Acenaphthylene
0.166
0.444
See Note 2
Grab
Effluent
Acrylonitrile
0.723
1.821
See Note 2
Grab
Effluent
Anthracene
0.166
12.8 ug/L
See Note 2
Grab
Effluent
Benzene
0.278
1.024
See Note 2
Grab
Effluent
Benzo(a)anthracene
0.166
0.444
See Note 2
Grab
Effluent
.3,4-Benzofluoranthene
0.173
0.459
See Note 2
Grab
Effluent
Benzo(k)fluoranthene
0.166
0.444
See Note 2
Grab
Effluent
Benzo(a)pyrene
0.173
0.459
See Note 2
Grab
Effluent
Bis(2-ethylhexyl) phthalate
0.775
2.100
See Note 2
Grab
Effluent
Carbon Tetrachloride
0.135
0.286
See Note 2
Grab
Effluent
Chlorobenzene
0.113
0.211
See Note 2
Grab
Effluent
Chloroethane
0.783
2.017
See Note 2
Grab
Effluent
Chloroform
0.158
0.346
See Note 2
Grab
Effluent
2-Chlorophenol
0.233
0.738
See Note 2
Grab
Effluent
Chrysene
0.166
0.444
See Note 2
Grab
Effluent
Di-n-butyl phthalate
0.203
0.429
See Note 2
Grab
Effluent
1,2-Dichlorobenzene
0.580
1.227
See Note 2
Grab
Effluent
1,3-Dichlorobenzene
0.233
0.331
See Note 2
Grab
Effluent
1,4-Dichlorobenzene
0.113
0.211
See Note 2
Grab
Effluent
1,1-Dichloroethane
0.166
0.444
See Note 2
Grab
Effluent
1,2-Dichloroethane
0.512
1.588
See Note 2
Grab
Effluent
1,1-Dichloroethylene
0.120
0.188
See Note 2
Grab
Effluent
1,2-trans-Dichloroethylene
0.158
0.406
See Note 2
Grab
Effluent
2,4-Dichlorophenol
0.294
0.843
See Note 2
Grab
Effluent
1,2-Dichloropropane
1.152
1.731
See Note 2
Grab
Effluent
1,3-Dichloropropylene
0.218
0.331
See Note 2
Grab
Effluent
Diethyl phthalate
0.610
1.528
See Note 2
Grab
Effluent
2,4-Dimethylphenol
0.135
0.271
See Note 2
Grab
Effluent
Dimethyl phthalate
0.143
0.354
See Note 2
Grab
Effluent
4,6-Dinitro-o-cresol
0.587
2.085
See Note 2
Grab
Effluent
2,4-Dinitrophenol
0.534
0.926
See Note 2
Grab
Effluent
2,4-Dinitrotoluene
0.851
2.145
See Note 2
Grab
Effluent
2,6-Dinitrotoluene
1.919
12.3 ug/L
See Note 2
Grab
Effluent
Ethylbenzene
0.241
0.813
See Note 2
Grab
Effluent
DEQ-CFW 00002887

,
Permit NC0003573
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - SUBPART I (CONTUNUED)
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee shall comply
with the limitations and monitoring frequencies established below at outfall 001:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
1Vlonthly
Aver. er
Daily
Maxiznuarizl
Measurement
. Fre uenc
Sample
a
Sample
Location
Fluoranthene
0.188
28.2 ug/L
See Note 2
Grab
Effluent
Fluorene
0.166
0.444
See Note 2
Grab
Effluent
Hexachlorobenzene
0.113
0.5 µg/L
Annually'
Grab
Effluent
Hexachlorobutadiene
0.151
0.369
See Note 2
Grab
Effluent
Hexachloroethane
0.158
0.406
See Note 2
Grab
Effluent
Methyl Chloride
0.647
1.430
See Note 2
Grab
Effluent
Methylene Chloride
0.301
0.670
See Note 2
Grab
Effluent
Naphthalene
0.166
0.444
See Note 2
Grab
Effluent
Nitrobenzene
0.203
0.512
See Note 2
Grab
Effluent
2-Nitrophenol
0.309
0.519
See Note 2
Grab
Effluent
4-Nitrophenol
0.542
0.933
See Note 2
Grab
Effluent
Phenanthrene
0.166
0.444
See Note 2
Grab
Effluent
Phenol
0.113
0.196
See Note 2
Grab
Effluent
Pyrene
0.188
0.504 -
See Note 2
Grab
Effluent
Tetrachloroethylene
0.166
0.422
See Note 2
Grab
Effluent
Toluene
0.196
0.602
See Note 2
Grab
Effluent
1,2,4-Trichlorobenzene
0.512
1.054
See Note 2
Grab
Effluent
1,1,1-Trichloroethane
0.158
0.406
See Note 2
Grab
Effluent
111,2-Trichloroethane
0.158
0.406
See Note 2
Grab
Effluent
Trichloroethylene
0.158
0.406
See Note 2
Grab
Effluent
Vinyl Chloride
0.783
2.017
See Note 2
Grab
Effluent
Total Chromium
8.355
20.849
Annually
Grab
Effluent
Total Copper
10.914
25.441
Annually
Grab
Effluent
Total Cyanide
3.161
9.032
See Note 2
Grab
Effluent
Total Lead
2.409
5.194
See Note 2
Grab
Effluent
Total Nickel
12.720
29.957
Annually
Grab
Effluent
Total Zinc
7.903
19.645
Annually
Grab
Effluent
Notes:
1. All units are lbs/day unless otherwise noted.
2. Monitoring for the specified parameters has been waived based on a demonstration made by the Permittee in
accordance with 40 CFR 122.44(a)(2)(i). This waiver is good only for the term of the permit. Please note that
any exceedence of the effluent limitations found herein shall be considered a permit violation subject to
appropriate enforcement action.
3. The most sensitive analytical method available shall be employed for determining the presence of
hexachlorobenzene in the effluent.
DEQ-CFW 00002888

Permit NC0003573
A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized
to discharge from Outfall 002 (boiler blowdown, once -through cooling water, and treated wastewater from
outfall 001) Such discharges shall be limited and monitored by the Permittee as specified below:
PARAMETER
EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum.
Measurement
Frequency
Sample
e
Sample
Location' `
Flow (MGD)
Continuous
Recording
Effluent or
Influent
Temperature, °C
See Note 2
Daily3
Grab
Effluent,
Upstream,
Downstream
BOD5, 20°C
Quarterly
Composite
Effluent
COD
Quarterly
Composite
Effluent
Fluoride (ug/L)
Quarterly
Grab
Effluent
Dissolved Oxygen
Weekly
Grab
Upstream,
Downstream
PFOA4
Monthly
Grab
Effluent
Total Phosphorus
Monthly
Composite
Effluent
Total Nitrogen
(NO2+NO3+TKN)
Monthly
Composite
Effluent
Conductivity
Weekly
Grab
Upstream,
Downstream
Chronic Toxicity
See Note 5
Quarterly
Composite
Effluent
pH
Between 6.0 and 9.0 Standard Units
3/Week
Grab
Effluent
Notes:
1. Upstream shall be at the Permittee's river pump station; downstream shall be at the boat ramp approximately
4500 feet downstream at Prospect Hall Landing.
As a participant in the Middle Cape Fear River Basin Association, the instream monitoring requirements as
stated above are waived. Should your membership in the agreement be terminated, you shall notify the
Division immediately and the instream monitoring requirements specified in your permit shall be reinstated.
2. The temperature of the effluent shall be such as not to cause an increase in the temperature of the receiving
stream of more than 2.8°C and in no case cause the ambient water temperature to exceed 32°C.
3. Daily shall be defined as every day except Saturdays, Sundays, and legal holidays. Instream temperature
sampling shall be conducted weekly.
4. PFOA (Perfluorooctanoic acid) - The Cape Fear River water intake may be sampled for PFOA on a monthly
basis and reported as an upstream parameter in DWQ Form — MR-3.
5. Chronic Toxicity (Ceriodaphnia) P/F @ 3.3% February, May, August, November; see condition A. (4) of this
permit. The compliance monitoring point for chronic toxicity shall be downstream of the confluence of outfall
001 and 002.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
DEQ-CFW 00002889

Permit NC0003573
A. (4) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) — OUTFALL 002
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 3.3%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent
versions. The tests will be performed during the months of February, May, August, and November. Effluent
sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all treatment
processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit
limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months
as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998)
or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP313 for the
pass/fail results and THP313 for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention: Environmental Sciences Section
North Carolina Division of Water Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required, the
permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the
facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No
Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Section at
the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include
alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.
DEQ-CFW 00002890

Permit NC0003573
A. (5) RE -OPENER CONDITION
This permit shall be modified, or revoked and reissued to incorporate additional toxicity limitations and
monitoring requirements in the event toxicity testing or other studies conducted on the effluent or receiving
stream indicate that detrimental effects may be expected in the receiving stream as a result of this discharge.
A. (6) BIOCIDE CONDITION
The permittee shall not use any biocide except those approved in conjunction with the permit application. The
permittee shall notify the Director in writing not later than ninety (90) days prior to instituting use of any
additional biocide used in cooling systems which may be toxic to aquatic life other than those previously reported
to the Division of Water Quality. Such notification shall include completion of Biocide Worksheet Form 101 and a
snap locating the discharge point and receiving stream.
� �U lf r �.
he f
DEQ-CFW 00002891