NC0090042_Draft Permit_20220322

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ROY COOPER i
Governor « l_� �
ELIZABETH S.BISER
Secretary
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
March 22,2022
Mr.Brian Long,Plant Manager
The Chemours Company
Fayetteville Works
22828 NC Highway 87 W
Fayetteville,North Carolina 28306
Subject: Draft NPDES Permit
Permit NC0090042
Fayetteville Works
Bladen County
Facility Physical-Chemical Grade II
Dear Mr. Long:
Enclosed with this letter is a copy of the draft permit for your facility. Please review this permit very
carefully to ensure thorough understanding of the conditions and requirements it contains.
Please provide any comments you have regarding the draft permit to this office by May 2,
2022. At this time,the Division is also publishing a notice in the newspapers of general circulation in
Bladen County,inviting public comment on the Draft Permit. Following the 30-day comment period,
we will review all pertinent comments received and take appropriate action on the permit.
If you have any questions about the NPDES permit process,please contact me at the following e-
mail address: sergei.chernikovnn,ncdenr.gov,or telephone number: 919-707-3606.
Sincerely,
5.'1. 1.-/
Sergei Chernikov,Ph.D.
Environmental Engineer III
Industrial NPDES Permitting Unit
cc: Central Files
NPDES Files
EPA Region IV(e-copy)
Fayetteville Regional Office/Water Quality(e-copy)
Fayetteville Regional Office/PWS (e-copy)
WSS/Aquatic Toxicology Unit(e-copy)
Dy� North Carolina Department of Environmental Quality I Division of Water Resources
E J� 512 North Salisbury Street 11611 Mail Service Center I Raleigh North Carolina 27699-1611
NOR IN CAROLINA \V r
a e...w W 919.707.9000

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
DRAFT 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 treated groundwater, treated filter backwash, treated stormwater, and
treated seep water 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, Part II, and Part III
hereof
The permit shall become effective Month DD, 20YY.
This permit and the authorization to discharge shall expire at midnight on Month DD, 20YY.
Signed this day Month DD, 20YY.
DRAFT
Richard E. Rogers Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission

Chemours Fayetteville 004 Permit NC0090042
SUPPLEMENT TO PERMIT COVER SHEET
The Chemours Company FC, LLC
is hereby authorized to:
1. Operate a 2.38 MGD wastewater treatment facilities consisting of:
• chemical oxidation/precipitation
• pH adjustment to precipitate metals
• ultrafiltration membranes to remove total suspended solids and other constituents
• granulated active carbon (GAC) system to remove PFAS compounds
• waste solids generation
• associated equipment
2. Discharge treated groundwater, treated filter backwash, treated stormwater, and treated seep
water though Outfall 004 routed to 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.
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Chemours Fayetteville 004 Permit NC0090042
Part I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS—OUTFALL 004
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Facility Physical-Chemical Grade II
Beginning on the effective date of this permit and lasting through the expiration date, the Permittee is authorized to
discharge from Outfall 004(treated groundwater,treated filter backwash,treated stormwater,and treated seep
water). Such discharges shall be limited and monitored by the Permittee as specified below:
PARAMETER EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
Monthly Average Daily Maximum Measurement Sample Sample
Frequency Type Location
Flow 50050 2.38 MGD Continuous Recording Effluent
Recording
Total Monthly Flow 82220 Monitor and Report(MG/mo) Monthly or Effluent
Calculation
Effluent,
Temperature(°C) 000/0 See Note 2 Weekly Grab Upstream,
Downstream
BOD,5-day,20°C C0310 30.0 mg/L 45.0 mg/L Monthly Composite Effluent
TSS C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
Dissolved Oxygen,mg/L 00300 Weekly Grab Upstream,
Downstream
HFPO-DA(GenX) 52612 0.12 µg/L 0.12 µg/L Weekly Grab Effluent
HFPO-DA(GenX)3 QM612 Monitor and Report(lb/mo) Monthly Calculation Effluent
HFPO-DA(GenX)3 QY612 Monitor and Report(lb/yr) Annually Calculation Effluent
PFMOAA 52613 0.64 µg/L 0.64 µg/L Weekly Grab Effluent
PFMOAA3 QM613 Monitor and Report(lb/mo) Monthly Calculation Effluent
PFMOAA3 QY613 Monitor and Report(lb/yr) Annually Calculation Effluent
PMPA 52620 0.13 µg/L 0.13 µg/L Weekly Grab Effluent
PMPA3 QM620 Monitor and Report(lb/mo) Monthly Calculation Effluent
PMPA3 QY620 Monitor and Report(lb/yr) Annually Calculation Effluent
PFAS compounds,ng/L See A. (5.) Grab See A.(5.)
Total Organic Fluorine, Monthly Grab Effluent
ng/L6
Total Phosphorus,mg/L C0665 Monthly Composite Effluent
Total Nitrogen,mg/L C0600 Monthly Composite Effluent
(NO2+NO3+TKN)
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Chemours Fayetteville 004 Permit NC0090042
PARAMETER EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARACTERISTICS
Monthly Average Daily Maximum Measurement Sample Sample f
Frequency Type Location
Conductivity 00094 Monthly Grab Upstream,
Downstream
Chronic Toxicity TGP3B See Note 4 Quarterly Composite Effluent
pH 00400 Between 6.0 and 9.0 Standard Units Weekly Grab Effluent
Total Silver7'8, µg/L 01077 Quarterly Composite Effluent
Total Cadmium8,µg/L 01027 Quarterly Composite Effluent
Total Lead8,µme01051 Quarterly Composit
e Effluent
Total Thallium8,µg/L 00982 Quarterly Composite Effluent
Total Hardness[as 00900 Upstream
CaCO3](mg/L)5 Quarterly Composite Effluent
Notes:
1. Upstream monitoring shall be at the Permittee's river pump station; Downstream shall be approximately 6400
feet downstream of Outfall 002.
As a participant in the Middle Cape Fear River Basin Association,the instream monitoring requirements for
conventional parameters(DO,temperature,conductivity,and hardness)as stated above are waived. This
waiver for instream monitoring does not apply to instream monitoring required in Special Condition A. (7.).
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.
Influent—influent to the Treatment System.
Effluent—effluent from the Treatment System.
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. The Permittee shall remove indicator parameters HFPO-DA, PFMOAA, and PMPA at an efficiency of at least
99% in order to reduce PFAS loading to the Cape Fear River. This removal efficiency is ensured through two
mechanisms—(1)the effluent limits listed above and(2)monthly calculations of actual removal efficiency. The
effluent limits listed above are TechnologyBased Effluent Limits ("TBELs") that are calculated based on data
submitted with the permit application and ensure a minimum of 99%removal efficiency. In addition to complying
with these effluent limits,on a monthly basis,the Permittee must demonstrate compliance with the 99%removal
efficiency requirement by calculating the actual removal efficiency for HFPO-DA, PFMOAA, and PMPA
pursuant to condition A. (6.). The Permittee is required to meet both the listed effluent limits and the monthly
demonstration of 99% removal efficiency. The Permittee may request revision of the 99% removal efficiency
requirement upon a demonstration that influent concentrations of PFAS have been reduced to such a level that
99% removal is no longer technically feasible. Notwithstanding any such revision, Chemours shall continue to
operate the Treatment System at optimal efficiency. The Division will re-evaluate performance of the facility
after 2 years of operation and adjust the limits accordingly.
4. Chronic Toxicity (Ceriodaphnia) P/F @ 12.5%; quarterly during February, May, August, November; see
condition A. (2.)of this permit.
5. The permittee shall sample instream hardness upstream of the facility's discharge. The sample shall be
representative of the hardness in the stream. If the permittee is a member of the Monitoring Coalition Program,
sampling for instream hardness may be waived as long as the Monitoring Coalition agrees to sample hardness at
the nearest upstream location,at a minimum frequency of quarterly,and the permittee has obtained approval from
DWR-NPDES Permitting Unit that the upstream station being monitored by the coalition is representative of the
receiving stream for this discharge.The permittee is responsible for submitting instream hardness test results with
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Chemours Fayetteville 004 Permit NC0090042
its DMRs as results are received from the coalition. If coalition membership is cancelled or the Monitoring
Coalition terminates instream hardness sampling at the approved station, the permittee will immediately notify
the Division and resume sampling for instream hardness,upstream of its discharge,as required in Section A.(1.).
6. Upon Notice from NCDEQ the facility shall commence monitoring Total Organic Fluorine using an NCDEQ
approved analytical test method.
7. Sufficiently sensitive test methods shall be used to analyze for Silver.The Division shall consider all effluent
Silver values reported below the PQL to be in compliance with the Monthly Average Silver limit.As of the
effective date of this permit,DWR recommends a target PQL of 1.0 µg/L for Silver.
8. After 12 months of sampling the facility can apply for a reduction in sampling if all the sampling results
demonstrate concentrations below detection levels.The facility shall be employing the sufficiently sensitive test
methods.
The facility shall complete and submit EPA Form 2C for this Outfall no later than 6 months from the effective date
of the permit.
The facility shall maintain at least a 2 ft. freeboard in the main surge pond, as provided in the Operations and
Maintenance Plan.The facility shall verify freeboard depth daily.
The facility shall submit a Sludge Management Plan and Operations and Maintenance Plan for all surge ponds within
60 days from the permit issuance date.
The facility shall submit a closure plan 180 days prior to the decommissioning of the surge ponds.
The facility shall use stand-by power capability for all pumps and treatment plant equipment.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
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Chemours Fayetteville 004 Permit NC0090042
A. (2.) CHRONIC TOXICITY PERMIT LIMIT P/F(QUARTERLY)—OUTFALL 004
[15A NCAC 02B.0500]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 12.5%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the"North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"(Revised December 2010, or subsequent versions)or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"(Revised December 2010, or
subsequent versions).The tests will be performed during the months of February,May,August,and November.
These months signify the first month of each three-month toxicity testing quarter assigned to the facility.Effluent
sampling for this testing must be obtained during representative effluent discharge and 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-December 2010,or subsequent versions).
All toxicity testing results required as part of this permit condition will be entered electronically using the
Division's eDMR system for the months in which tests were performed,using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value.Additionally,DWR Form AT-3 (original)is to be sent to the
following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh,NC 27699-1621
Or,results can be sent to the email, ATForms.ATBAncdenr.gov.
Completed Aquatic Toxicity Test Forms shall be filed with the Water 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 Water 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.Assessment of toxicity compliance is based on the toxicity testing quarter,
which is the three-month time interval that begins on the first day of the month in which toxicity testing is required
by this permit and continues until the fmal day of the third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Resources indicate potential impacts to the receiving stream,this permit may be re-opened and modified to include
alternate monitoring requirements or limits.
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Chemours Fayetteville 004 Permit NC0090042
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.
Sampling for the Whole Effluent Toxicity shall be conducted at the Outfall 002 sampling point.
A. (3.) RE-OPENER CONDITION
[NCGS 143-215.1, 15A NCAC 2H.0112& .0114,and NCGS 143-215.66]
a. This permit shall be modified, or revoked and reissued to incorporate additional limitations and monitoring
requirements in the event toxicity testing or other studies indicate that detrimental effects may be expected as
a result of this discharge.
b. If EPA develops PFAS criteria or the State adopts standards for any of the compounds generated by
Chemours,the Division will conduct a reasonable potential analysis and reopen the permit to include the new
limits,if they are more stringent than the TBELs.
c. After two years, this permit may be modified, or revoked and reissued to incorporate more stringent PFAS
limits if the Division determines that the technology consistently achieves concentrations of the indicator
PFAS that are lower than the TBELs.
A. (4.) ELECTRONIC REPORTING OF MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports(DMRs)and program reports.
The final NPDES Electronic Reporting Rule was adopted and became effective on December 21,2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this permit
(Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
•
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D.(2.)and Section E.(5.)(a)1
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic Discharge
Monitoring Report(eDMR) internet application.
Monitoring results obtained during the previous month(s)shall be summarized for each month and submitted
electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring data and submit
DMRs electronically using the internet. The eDMR system may be accessed at:
https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility being
physically located in an area where less than 10 percent of the households have broadband access,then a
temporary waiver from the NPDES electronic reporting requirements may be granted and discharge monitoring
data may be submitted on paper DMR forms(MR 1, 1.1,2, 3)or alternative forms approved by the Director.
Duplicate signed copies shall be submitted to the following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
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Chemours Fayetteville 004 Permit NC0090042
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
See"How to Request a Waiver from Electronic Reporting"section below.
Regardless of the submission method,the first DMR is due on the last day of the month following the issuance
of the permit or in the case of a new facility,on the last day of the month following the commencement of
discharge.
Starting on December 21,2025,the permittee must electronically report the following compliance monitoring
data and reports,when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act(CWA) Section 316(b)Annual Reports.
The permittee may seek an electronic reporting waiver from the Division(see"How to Request a Waiver from
Electronic Reporting"section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9),the permittee must identify the initial recipient at the time of each
electronic submission. The permittee should use the EPA's website resources to identify the initial recipient for
the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity(EPA or the
state authorized by EPA to implement the NPDES program)that is the designated entity for receiving electronic
NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each type of
electronic submission and for each state. Instructions on how to access and use the appropriate electronic
reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting Rule is found at:
https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge-elimination-
system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the"Reporting Requirements"section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver,a permittee must first submit an electronic reporting waiver request to the Division. Requests
for temporary electronic reporting waivers must be submitted in writing to the Division for written approval at
least sixty(60)days prior to the date the facility would be required under this permit to begin submitting
monitoring data and reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon
expire. At such time,monitoring data and reports shall be submitted electronically to the Division unless the
permittee re-applies for and is granted a new temporary electronic reporting waiver by the Division. Approved
electronic reporting waivers are not transferrable. Only permittees with an approved reporting waiver request
may submit monitoring data and reports on paper to the Division for the period that the approved reporting
waiver request is effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on the
following web page:
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Chemours Fayetteville 004 Permit NC0090042
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Sisnatory Requirements [Supplements Section B.(11.)(b)and Supersedes Section B.(11.)(d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section B.
(11.)(a)or by a duly authorized representative of that person as described in Part II, Section B.(11.)(b). A
person,and not a position,must be delegated signatory authority for eDMR reporting purposes.
For eDMR submissions,the person signing and submitting the DMR must obtain an eDMR user account and
login credentials to access the eDMR system. For more information on North Carolina's eDMR system,
registering for eDMR and obtaining an eDMR user account,please visit the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the
following certification[40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE
ACCEPTED:
"I certiO, 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 offines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.)1
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions. These
records or copies shall be maintained for a period of at least 3 years from the date of the report. This period
may be extended by request of the Director at any time [40 CFR 122.41].
A. (5.) PFAS MONITORING REQUREMENTS
[NCGS 143-215.3 (a)(2)and NCGS 143-215.66]
The permittee shall monitor for PFAS compounds at the monitoring frequencies described below. The lists of
compounds follow. Note that not all required compounds have eDMR parameter codes.Those with parameter codes
should be reported using the applicable codes, and all other results for PFAS compounds should be reported in the
comment section of the eDMR or added as supplemental information. In addition, a complete copy of all PFAS
sampling results shall be submitted to NPDES Permitting via email at svc deq npdes-ec@a,ncdenr.gov, with the
Facility permit number and name in the Subject heading.
The Permittee shall use the following analytical methods when testing for the PFAS compounds.
Method description: Approved methods and SOPs referred to as"EPA 537 Modified"and"Table 3"shall be used
as described in supporting material and approved by DEQ Division of Waste Management in a letter dated May 8th
2019.For this permit,Eurofms Lancaster and Eurofins Test America shall use these same approved methods and
update all method revisions with the referenced methods for consistency across all work projects for Chemours
Company Fayetteville Works.
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Chemours Fayetteville 004 Permit NC0090042
Upon EPA approval of method 1633 and notification by DEQ the facility shall employ this analysis for PFAS
compounds covered under this method.The conversion to the new method shall be achieved within 60 days.The
facility shall continue to employ method 537 Modified for parameters that will not be covered by method 1633.
Monitoring Locations and Frequency'
Location Compounds Frequency
Influent to the Treatment System Table 3+ Lab SOP Monthly
Full suite Quarterly
Effluent from the Treatment Table 3+ Lab SOP Monthly
System Full suite Quarterly
PFAS Compounds: Full Suite/Method 537 Modified Compounds:
Analytical Common Chemical Name CASN Chemical Parameter
Method Name Formula code
HFPO-DA Hexafluoropropylene oxide 13252-13-6 C6HF1103 52612
dimer acid
PEPA Perlfuoroethoxypropyl 26729-61-2 C5HF903 52618
carboxylic acid
PFECA-G Perfluoro-4-isopropoxybutanoic 801212-59-9 C12H9F903S 52619
acid
PFMOAA Perfluoro-2-methoxyacetic acid 674-13-5 C3HF503 52613
PFO2HxA Perfluoro(3,5-dioxahexanoic) 39492-88-1 C4HF704 52617
acid
PFO3OA Perfluoro(3,5,7-trioxaoctanoic) 39492-89-2 C5HF905 52616
acid
PFO4DA Perfluoro(3,5,7,9- 39492-90-5 C6HF1106 52615
tetraoxadecanoic)acid
PMPA Perfluoromethoxypropyl 13140-29-9 C4HF703 52620
Table 3+ carboxylic acid
Lab SOP Hydro-EVE Perfluoroethoxypropanoic acid 773804-62-9 C8H2F1404 52621
Acid
EVE Acid Perfluoroethoxypropionic acid 69087-46-3 C8HF1304 52622
PFECA-B Perfluoror-3,6-dioxaheptanoic 151772-58-6 C5HF904 52626
acid
R-EVE R-EVE N/A C8H2F1205 52640
PFO5DA Perfluoro-3,5,7,9,11- 39492-91-6 C7HF1307 52627
pentaoxadodecanoic acid
Byproduct 4 Byproduct 4 N/A C7H2F1206S 52643
Byproduct 5 Byproduct 5 N/A C7H3F1107S 52644
Byproduct 6 Byproduct 6 N/A C6H2F1204S 52645
NVHOS Perfluoroethoxysulfonic acid 1132933-86- C4H2F804S 52628
86-8
PES Perfluoroethoxyethanesulfonic 113507-82-7 C4HF9O4S 52629
acid
' See A.(7.)PFAS Special Monitoring Requirements for enhanced water quality monitoring and sampling below.
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Chemours Fayetteville 004 Permit NC0090042
PFESA-BP1 Byproduct 1 29311-67-9 C7HF13O5S 52630
PFESA-BP2 Byproduct 2 749836-20-2 C7H2F1405S 52614
PFBA Perfluorobutanoic acid 375-22-4 C4HF702 51522
PFDA Perfluorodecanoic acid 335-76-2 ClOHF1902 51627
PFDoA Perfluorododecanoic acid 307-55-1 Cl2HF2302 51629
PFHpA Perfluoroheptanoic acid 375-85-9 C7HF1302 51625
PFNA Perfluorononanoic acid 375-95-1 C9HF1702 51626
PFOA Perfluorooctanoic acid 335-67-1 C8HF15O 51521
PFHxA Perfluorohexanoic acid 307-24-4 C6HF1102 51624
PFPeA Perfluoropentanoic acid 2706-90-3 C5HF902 51623
PFTeA Perfluorotetradecanoic acid 376-06-7 C14HF2702 51531
PFTriA Perfluorotridecanoic acid 72629-94-8 C 13HF2502 51630
PFUnA Perfluoroundecanoic acid 2058-94-8 Cl1HF2102 51628
PFBS Perfluorobutanesulfonic acid 375-73-5 C4HF9SO 52602
PFDS Perfluorodecanesulfonic acid 335-77-3 ClOHF2103S 52603
PFHpS Perfluoroheptanesulfonic acid 375-92-8 C7HF15O3S 52604
PFHxS Perfluorohexanesulfonic acid 355-46-4 C6HF13SO3 52605
PFNS Perfluorononanesulfonic acid 68259-12-1 C9HF19O3S 52611
EPA PFOS Perfluorooctanesulfonic acid 1763-23-1 C8HF17SO3 52606
Method PFPeS Perfluoropentanesulfonic acid 2706-91-4 C5HF11O3S 52610
537 Mod 10:2 FTS 10:2 fluorotelomersulfonic acid 120226-60-0 C 12H5F2103 52631
4:2 FTS 4:2 fluorotelomersulfonic acid 757124-72-4 C6H5F903S 52607
6:2 FTS 6:2 fluorotelomersulfonic acid 27619-97-2 C8H5F13S03 52608 _
8:2 FTS 8:2 fluorotelomersulfonic acid 39108-34-4 C1OH5F1703S 52609
NEtFOSAA NEtFOSAA 2991-50-6 C12H8F17NO4S 51643
NEtPFOSA NEtPFOSA 4151-50-2 C1OH6F17NO2S 52642
NEtPFOSAE NEtPFOSAE 1691-99-2 C12H10F17NO3S 51641
NMeFOSAA NMeFOSAA 2355-31-9 C11H6F17NO4S 51644
NMePFOSA NMePFOSA 31506-32-8 C9H4F17NO2S 52641
NMePFOSAE NMePFOSAE 24448-09-7 C11H8F17NO3S 51642
PFDOS Perfluorododecanesulfonic acid 79780-39-5 C12HF2503S 52632
PFHxDA Perfluorohexadecanoic acid 67905-19-5 C16HF3102 52633
PFODA Perfluorooctadecanoic acid 16517-11-6 C 18HF3502 52634
PFOSA Perfluorooctanesulfonamide 754-91-6 C8H2F17NO2S 51525
F-53B Major F-53B Major 73606-19-6 C8HC1F16O4S 52638
F-53B Minor F-53B Minor 83329-89-9 C1OHC1F2004S 52639
DONA 4,8-Dioxa-3H-perfluorononanoic 919005-14-4 C7H2F1204 52636
acid
A. (6.) CALCULATION OF HFPO-DA, PMPA,& PFMOAA REMOVAL/LOADS
a. The Permittee shall calculate monthly removal efficiency for HFPO-DA, PMPA, and PFMOAA as
follows:
CA Removal = Influent—Effluent *100
Influent
Where:
Influent=monthly average influent concentration
Effluent=monthly average effluent concentration
b. The Permittee shall calculate monthly load for HFPO-DA, PMPA, and PFMOAA as follows:
Revised 3/14/2022 Page 11 of 30

Chemours Fayetteville 004 Permit NC0090042
Monthly C Load = C x TMF x 8.34
Where:
C=monthly average effluent concentration for each compound(mg/L)
TMF=Total Monthly Flow of wastewater discharged during the month(MG/month)
8.34=conversion factor from(mg/L x MG)to pounds
Annual C Load = Sum of the 12 Monthly Loads for each compound for the calendar year
c. The Permittee shall report monthly HFPO-DA, PMPA, and PFMOAA results [% removal (ng/L), and
loading(pounds/month)] in the discharge monitoring report for each month and shall report each calendar
year's Annual Load (pounds/year) with the December report for that year. Percent removal shall be listed
in the comment section of the eDMR since it has no parameter code.
This percent removal will be reported monthly with Chemours electronic Discharge Monitoring Report
(eDMR)data. If the influent HFPO-DA,PMPA,or PFMOAA concentrations to the water treatment system
are equal to or less than 200 ng/L, 1,000 ng/L, and 500 ng/L, respectively, then the water treatment system
effluent concentrations of less than the current reporting limits (2 ng/L, 10 ng/L, and 5 ng/L, respectively)
shall be considered as achieving 99%removal.
A. (7.) PFAS SPECIAL MONITORING REQUREMENTS
In addition, to the monitoring specified previously the site operator/ owner shall commence the following
water quality monitoring and sampling regiment within 60 days of approval of the Permit. The monitoring
and sampling shall be to the standards provided in Section A. (5.) PFAS Monitoring Requirements noted
previously herein. This regiment shall continue until the NCDEQ approves a reduction.
Samples shall be collected at the following four transects (comprising 12 sampling stations) along the
Cape Fear River as depicted in Exhibits 1 A(Facility Vicinity Maps), 1 B (Overview Chemours Intake and
Outfall Map) and 1 C (Chemours Cape Fear River Water Quality Monitoring Sampling Points)herein.
o Transect 1 (34°51'07.80"N, 78°49'36.12"W): stations 1-3 stations 1-3 from west to east so
station 1 is near Chemours's river bank, station 2 in the river center, and station 3 towards
the eastern river bank(above Willis Creek)
o Transect 2 (34°50'40.54"N, 78°49'27.10"W): stations 4-6 from west to east.
o Transect 3 (34°50'07.23"N, 78°49'22.99"W): stations 7-9 stations 4-6 from west to east.
(William 0 Huske Dam)
o Transect 4 (34°48'19.32"N 78°49'13.94"W): Stations 10-12 from west to east. (outfall 003
downstream sampling point).
All sampling points are evenly spaced at '/, 1/2 and 3/ of the distance across the river. Samples should be
obtained as grab at %2 the depth between the river surface to the bottom(according to the depth at each
sampling point). All transects should be sampled within the same 48-to-72-hour period, weather
permitting.
Sampling shall be performed beginning within sixty (60) days of Permit issuance until six (6) months
following final completion of construction of the barrier wall as determined by the NCDEQ. During this
time period the following parameters and sampling frequency shall be implemented:
Revised 3/14/2022 Page 12 of 30

Chemours Fayetteville 004 Permit NC0090042
• Temperature(monthly)
• Dissolved Oxygen(monthly)
• pH (monthly)
• Turbidity(monthly)
• HFPO-DA (GenX)(monthly)
• PFMOAA(monthly)
• PMPA (monthly)
• PFAS compounds (Table 3+ SOP) (Quarterly sampling)
Six(6)months following the completion of the barrier wall sampling shall be continued for all of the
above parameters on a quarterly basis.
Sampling results and summary of findings, including sampling at the Tar Hill Ferry Bridge shall be
submitted monthly on the DMRs and annually in the form of a report. Report should include graphs
depicting concentration trends for 3 indicator parameters. Copies of all reports shall be submitted to:
1) Electronic Version Only(pdf) [e-mail]
2) Electronic Version Only(pdf)[e-mail]
3) Electronic Version Only(pdf)[e-mail]
Specified water quality monitoring and sampling locations noted below are reflected in Exhibits 1 B and 1 C
herein.
o Transect 1 (34°51'07.80"N, 78°49'36.12"W): stations 1-3. (above Willis Creek)
o Transect 2 (34°50'40.54"N, 78°49'27.10"W): stations 4-6.
o Transect 3 (34°50'07.23"N, 78°49'22.99"W): stations 7-9. (William 0 Huske Dam)
o Transect 4 (34°48'19.32"N 78°49'13.94"W): Stations 10-12. (outfall 003 downstream
sampling point).
Revised 3/14/2022 Page 13 of 30

Chemours Fayetteville 004 Permit NC0090042
Exhibit IA: Chemours Geographic Vicinity Maps
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Revised 3/14/2022 Page 14 of 30

Chemours Fayetteville 004 Permit NC0090042
Exhibit 1B: Overview Chemours Intake and Out all Map
9vilhs Creek Connection
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Chemours River Intake Site
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Revised 3/14/2022 Page 15 of 30

Chemours Fayetteville 004 Permit NC0090042
Exhibit 1C Chemours Cape Fear River Water Quality Monitoring Sampling Points
nalal.16,I ylAr Maliraldl5
•
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Outfall
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c'©e,F ' River Intake
` t :, 9 William 0 Huske Dam
.T 1 Transect 1
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e, ! ,a..9',- 4� _—..- 1 - �- River Intake , • Transect 3
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Revised 3/14/2022 Page 16 of 30

Chemours Fayetteville 004 Permit NC0090042
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events.These samples shall
be representative of the wastewater discharged during the sample period.
3/Week
Samples are collected three times per week on three separate calendar days.These samples shall be representative
of the wastewater discharged during the sample period.
Act or"the Act"
The Federal Water Pollution Control Act,also known as the Clean Water Act(CWA),as amended, 33 USC 1251,
et. seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
coliform,the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system,
which is not a designed or established or operating mode for the facility.
Calendar Day
The period from midnight of one day until midnight of the next day.However,for purposes of this permit,any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday.
Calendar Quarter
One of the following distinct periods: January through March, April through June,July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period.
The Director may designate the most appropriate method(specific number and size of aliquots necessary,the time
interval between grab samples,etc.)on a case-by-case basis. Samples may be collected manually or automatically.
Composite samples may be obtained by the following methods:
(1) Continuous: a single,continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour
period of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection,or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period
with the time intervals between samples determined by a preset number of gallons passing the sampling
point.Flow measurement between sample intervals shall be determined by use of a flow recorder and
totalizer,and the preset gallon interval between sample collection fixed at no greater than 1/24 of the
expected total daily flow at the treatment system,or
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Chemours Fayetteville 004 Permit NC0090042
(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at
a constant time interval.Use of this method requires prior approval by the Director.This method may only
be used in situations where effluent flow rates vary less than 15 percent.The following restrictions also
apply:
➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters
➢ Influent samples shall not be collected more than once per hour.
➢ Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab
samples at intervals of no greater than 20 minutes apart during any 24-hour period.
> Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent
grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling
period.
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility.Flow shall be
monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance
activities on the flow device.
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling.For pollutants measured in units of mass,the"daily discharge" is calculated
as the total mass of the pollutant discharged over the day.For pollutants expressed in other units of measurement,
the"daily discharge"is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see
also"Composite Sample,"above.)
Daily Maximum
The highest"daily discharge"during the calendar month.
Daily Sampling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in
the permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal
operations prevent weekday sampling. If sampling is required for all seven days of the week for any permit
parameter(s),that requirement will be so noted on the Effluent Limitations and Monitoring Page(s).
DWO or"the Division"
The Division of Water Quality, Department of Environment and Natural Resources.
Effluent
Wastewater discharged following all treatment processes from a water pollution control facility or other point
source whether treated or untreated.
EMC
The North Carolina Environmental Management Commission
EPA
The United States Environmental Protection Agency
Facility Closure
Cessation of all activities that require coverage under this NPDES permit.Completion of facility closure will allow
this permit to be rescinded.
Geometric Mean
The Nth root of the product of the individual values where N=the number of individual values.For purposes of
calculating the geometric mean,values of"0"(or"< [detection level]") shall be considered= 1.
Revised 3/14/2022 Page 18 of 30

Chemours Fayetteville 004 Permit NC0090042
Grab Sample
Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes.Grab samples can
be collected manually.Grab samples must be representative of the discharge(or the receiving stream, for instream
samples).
Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA.
Instantaneous flow measurement
The flow measured during the minimum time required for the flow measuring device or method to produce a result
in that instance.To the extent practical,instantaneous flow measurements coincide with the collection of any grab
samples required for the same sampling period so that together the samples and flow are representative of the
discharge during that sampling period.
Monthly Average(concentration limit)
The arithmetic mean of all"daily discharges"of a pollutant measured during the calendar month. In the case of fecal
coliform or other bacterial parameters or indicators,the geometric mean of such discharges.
Permit Issuing Authority
The Director of the Division of Water Quality.
Quarterly Average(concentration limit)
The arithmetic mean of all samples taken over a calendar quarter.
Severe property damage
Substantial physical damage to property, damage to the treatment facilities which causes them to become
inoperable,or substantial and permanent loss of natural resources which can reasonably be expected to occur in the
absence of a bypass. Severe property damage excludes economic loss caused by delays in production.
Toxic Pollutant:
Any pollutant listed as toxic under Section 307(a)(1) of the CWA.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance
with permit effluent limitations and/or monitoring requirements.An upset does not include noncompliance caused
by operational error, improperly designed treatment facilities,inadequate treatment facilities,lack of preventive
maintenance, or careless or improper operation.
Weekly Average(concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliform or other bacterial parameters or indicators,the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply
The Permittee must comply with all conditions of this permit.Any permit noncompliance constitutes a violation
of the CWA and is grounds for enforcement action; for permit termination,revocation and reissuance, or
modification; or denial of a permit renewal application[40 CFR 122.41].
a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a)of the
CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section
405(d)of the CWA within the time provided in the regulations that establish these standards or prohibitions
or standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate
the requirement.
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Chemours Fayetteville 004 Permit NC0090042
b. The CWA provides that any person who violates section[s] 301, 302, 306,307, 308,318 or 405 of the Act,
or any permit condition or limitation implementing any such sections in a permit issued under section 402,
or any requirement imposed in a pretreatment program approved under sections 402(a)(3)or 402(b)(8)of
the Act,is subject to a civil penalty not to exceed$37,500 per day for each violation. [33 USC 1319(d)and
40 CFR
122.41(a)(2)]
c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318,or 405
of the Act,or any condition or limitation implementing any of such sections in a permit issued under section
402 of the Act,or any requirement imposed in a pretreatment program approved under section 402(a)(3)or
402(b)(8)of the Act,is subject to criminal penalties of$2,500 to$25,000 per day of violation,or
imprisonment of not more than 1 year,or both. In the case of a second or subsequent conviction for a
negligent violation,a person shall be subject to criminal penalties of not more than$50,000 per day of
violation,or by imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1)and 40 CFR
122.41(a)(2)]
d. Any person who knowingly violates such sections,or such conditions or limitations is subject to criminal
penalties of$5,000 to$50,000 per day of violation,or imprisonment for not more than 3 years,or both. In
the case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal
penalties of not more than$100,000 per day of violation,or imprisonment of not more than 6 years, or both.
[33 USC 1319(c)(2)and 40 CFR 122.41(a)(2)]
e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act,or any
permit condition or limitation implementing any of such sections in a permit issued under section 402 of the
Act,and who knows at that time that he thereby places another person in imminent danger of death or
serious bodily injury, shall,upon conviction,be subject to a fine of not more than$250,000 or
imprisonment of not more than 15 years, or both.In the case of a second or subsequent conviction for a
knowing endangerment violation,a person shall be subject to a fine of not more than$500,000 or by
imprisonment of not more than 30 years, or both. An organization,as defined in section 309(c)(3)(B)(iii)of
the CWA, shall,upon conviction of violating the imminent danger provision,be subject to a fine of not
more than$1,000,000 and can be fined up to
$2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)]
f. Under state law, a civil penalty of not more than$25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms, conditions,or requirements of a permit. [North
Carolina General Statutes § 143-215.6A]
g. Any person may be assessed an administrative penalty by the Administrator for violating section 301,302,
306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such
sections in a permit issued under section 402 of this Act.Administrative penalties for Class I violations are
not to exceed$16,000 per violation,with the maximum amount of any Class I penalty assessed not to
exceed$37,500. Penalties for Class II violations are not to exceed$16,000 per day for each day during
which the violation continues, with the maximum amount of any Class II penalty not to exceed$177,500.
[33 USC 1319(g)(2)and 40 CFR 122.41(a)(3)]
2. Duty to Mitigate
The Permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122.41(d)].
3.Civil and Criminal Liability
Except as provided in permit conditions on"Bypassing" (Part II.C.4),"Upsets"(Part II.C.5)and"Power Failures"
(Part II.C.7),nothing in this permit shall be construed to relieve the Permittee from any responsibilities,liabilities,
or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33
USC 1319.Furthermore,the Permittee is responsible for consequential damages, such as fish kills,even though
the responsibility for effective compliance may be temporarily suspended.
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Chemours Fayetteville 004 Permit NC0090042
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities,or penalties to which the Permittee is or may be subject to under NCGS
143215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321.Furthermore,the Permittee is responsible for
consequential damages, such as fish kills,even though the responsibility for effective compliance may be
temporarily suspended.
5.Property Rights
The issuance of this permit does not convey any property rights in either real or personal property,or any
exclusive privileges,nor does it authorize any injury to private property or any invasion of personal rights,nor
any infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)].
6. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
7. Severability
The provisions of this permit are severable.If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid,the application of such provision to other circumstances,and the
remainder of this permit, shall not be affected thereby [NCGS 150B-23].
8.Duty to Provide Information
The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time,any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying,revoking and reissuing,or
terminating this permit or to determine compliance with this permit.The Permittee shall also furnish to the Permit
Issuing Authority upon request,copies of records required by this permit [40 CFR 122.41(h)].
9.Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit,the
Permittee must apply for and obtain a new permit [40 CFR 122.41(b)].
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization
to discharge beyond the expiration date,the Permittee shall submit such information, forms,and fees as are
required by the agency authorized to issue permits no later than 180 days prior to the expiration date unless
permission for a later date has been granted by the Director. (The Director shall not grant permission for
applications to be submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any
Permittee that has not requested renewal at least 180 days prior to expiration,or any Permittee that does not have
a permit after the expiration and has not requested renewal at least 180 days prior to expiration,will subject the
Permittee to enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications,reports,or information submitted to the Permit Issuing Authority shall be signed and certified
[40 CFR 122.41(k)].
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer.For the purpose of this Section,a responsible
corporate officer means: (a)a president, secretary,treasurer or vice president of the corporation in
charge of a principal business function,or any other person who performs similar policy or decision
making functions for the corporation,or(b)the manager of one or more manufacturing,production,or
operating facilities,provided,the manager is authorized to make management decisions which govern
the operation of the regulated facility including having the explicit or implicit duty of making major
capital investment recommendations,and initiating and directing other comprehensive measures to
assure long term environmental compliance with environmental laws and regulations;the manager can
ensure that the necessary systems are established or actions taken to gather complete and accurate
information for permit application requirements; and where authority to sign documents has been
assigned or delegated to the manager in accordance with corporate procedures .
Revised 3/14/2022 Page 21 of 30

Chemours Fayetteville 004 Permit NC0090042
(2) For a partnership or sole proprietorship: by a general partner or the proprietor,respectively; or
(3) For a municipality, State,Federal, or other public agency: by either a principal executive officer or
ranking elected official [40 CFR 122.22].
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a. above or by a duly authorized representative of that person.A
person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the overall
operation of the regulated facility or activity, such as the position of plant manager,operator of a well
or well field, superintendent,a position of equivalent responsibility,or an individual or position having
overall responsibility for environmental matters for the company. (A duly authorized representative
may thus be either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority[40 CFR 122.22]
c. Changes to authorization: If an authorization under paragraph(b)of this section is no longer accurate
because a different individual or position has responsibility for the overall operation of the facility,a new
authorization satisfying the requirements of paragraph(b)of this section must be submitted to the Director
prior to or together with any reports,information, or applications to be signed by an authorized
representative [40 CFR
122.22]
d. Certification.Any person signing a document under paragraphs a. orb. of this section shall make the
following certification[40 CFR 122.22].NO OTHER STATEMENTS OF CERTIFICATION WILL BE
ACCEPTED:
"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 offines and imprisonment for knowing
violations."
12. Permit Actions
This permit may be modified,revoked and reissued, or terminated for cause.The filing of a request by the
Permittee for a permit modification,revocation and reissuance,or termination,or a notification of planned
changes or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(f)].
13. Permit Modification,Revocation and Reissuance,or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the
permit,revoking and reissuing the permit,or terminating the permit as allowed by the laws,rules,and
regulations contained in Title 40,Code of Federal Regulations,Parts 122 and 123;Title 15A of the North
Carolina Administrative Code, Subchapter 02H .0100; and North Carolina General Statute 143.215.1 et. al.
14.Annual Administering and Compliance Monitoring Fee Requirements
The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division.Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H
.0105(b)(2)may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1. Certified Operator
Owners of classified water pollution control systems must designate operators,certified by the Water Pollution
Control System Operators Certification Commission(WPCSOCC),of the appropriate type and grade for the
system,and, for each classification must [T15A NCAC 08G .0201]:
Revised 3/14/2022 Page 22 of 30

Chemours Fayetteville 004 Permit NC0090042
a. designate one Operator In Responsible Charge(ORC)who possesses a valid certificate of the type and
grade at least equivalent to the type and grade of the system;
b. designate one or more Back-up Operator(s)in Responsible Charge(Back-up ORCs)who possesses a valid
certificate of the type of the system and no more than one grade less than the grade of the system,with the
exception of no backup operator in responsible charge is required for systems whose minimum visitation
requirements are twice per year; and
c. submit a signed completed"Water Pollution Control System Operator Designation Form"to the
Commission(or to the local health department for owners of subsurface systems)countersigned by the
designated certified operators, designating the Operator in Responsible Charge(ORC)and the Back-up
Operator in Responsible Charge(Back-up ORC):
(1)60 calendar days prior to wastewater or residuals being introduced into a new system; or
(2)within 120 calendar days following:
> receiving notification of a change in the classification of the system requiring the designation of a
new Operator in Responsible Charge(ORC)and Back-up Operator in Responsible Charge(Back-up
ORC)of the proper type and grade; or
> a vacancy in the position of Operator in Responsible Charge(ORC)or Back-up Operator in
Responsible Charge(Back-up ORC).
(3)within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or
designating at least one of the responsibilities.
The ORC of each Class I facility(or the Back-up ORC,when acting as surrogate for the ORC)must:
> Visit the facility as often as is necessary to insure proper operation of the treatment system;the
treatment facility must be visited at least weekly
➢ Comply with all other conditions of 15A NCAC 08G .0204.
The ORC of each Class II,III and IV facility(or the Back-up ORC, when acting as surrogate for the ORC)
must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the
treatment facility must be visited at least five days per week, excluding holidays
➢ Properly manage and document daily operation and maintenance of the facility
➢ Comply with all other conditions of 15A NCAC 08G .0204.
2.Proper Operation and Maintenance
The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances)which are installed or used by the Permittee to achieve compliance with the
conditions of this permit.Proper operation and maintenance also includes adequate laboratory controls and
appropriate quality assurance procedures.This provision requires the Permittee to install and operate backup or
auxiliary facilities only when necessary to achieve compliance with the conditions of the permit[40 CFR
122.41(e)].
NOTE: Properly and officially designated operators are fully responsible for all proper operation and
maintenance of the facility, and all documentation required thereof,whether acting as a contract operator
[subcontractor] or a member of the Permittee's staff.
3.Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR
122.41(c)].
4.Bypassing of Treatment Facilities
a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded,but
only if it also is for essential maintenance to assure efficient operation.These bypasses are not subject to the
provisions of Paragraphs b.and c. of this section.
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Chemours Fayetteville 004 Permit NC0090042
b. Notice [40 CFR 122.41(m)(3)]
(1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass,it shall submit prior
notice,if possible at least ten days before the date of the bypass; including an evaluation of the
anticipated quality and effect of the bypass.
(2) Unanticipated bypass.The Permittee shall submit notice of an unanticipated bypass as required in Part
II.E.6. (24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for bypass,unless:
(A) Bypass was unavoidable to prevent loss of life,personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime.This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system-wide collection
system permit associated with the treatment facility.
(3) The Permit Issuing Authority may approve an anticipated bypass,after considering its adverse effects,
if the Permit Issuing Authority determines that it will meet the three conditions listed above in
Paragraph c.
(1)of this section.
5. Upsets
a. Effect of an upset [40 CFR 122.41(n)(2)]: An upset constitutes an affirmative defense to an action brought
for noncompliance with such technology based permit effluent limitations if the requirements of paragraph
b. of this condition are met.No determination made during administrative review of claims that
noncompliance was caused by upset,and before an action for noncompliance, is final administrative action
subject to judicial review.
b. Conditions necessary for a demonstration of upset: Any Permittee who wishes to establish the affirmative
defense of upset shall demonstrate,through properly signed,contemporaneous operating logs,or other
relevant evidence that:
(1) An upset occurred and that the Permittee can identify the cause(s)of the upset;
(2) The Permittee facility was at the time being properly operated; and
(3) The Permittee submitted notice of the upset as required in Part II.E.6.(b)of this permit.
(4) The Permittee complied with any remedial measures required under Part II.B.2. of this permit.
c. Burden of proof[40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has
the burden of proof in any enforcement proceeding.
6.Removed Substances
Solids, sludges,filter backwash,or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any
pollutant from such materials from entering waters of the State or navigable waters of the United States except as
permitted by the Commission.The Permittee shall comply with all applicable state and Federal regulations
governing the disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage
Sludge;40 CFR Part 258,Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T,Waste
Not Discharged To Surface Waters.The Permittee shall notify the Permit Issuing Authority of any significant
change in its sludge use or disposal practices.
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7.Power Failures
Refer to footnote number 12 within section A.(1.)Effluent Limitations and Monitoring Requirements—Outfall
004 for specific requirements.
Section D.Monitoring and Records 1.
1.Representative Sampling
Samples collected and measurements taken,as required herein, shall be representative of the permitted discharge.
Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the
discharge for the period the sample represents.All samples shall be taken at the monitoring points specified in this
permit and,unless otherwise specified,before the effluent joins or is diluted by any other wastestream,body of
water,or substance.Monitoring points shall not be changed without notification to and the approval of the Permit
Issuing Authority[40 CFR 122.41(j)].
2.Reporting
Monitoring results obtained during the previous month(s)shall be summarized for each month and reported on a
monthly Discharge Monitoring Report(DMR)Form(MR 1, 1.1,2, 3)or alternative forms approved by the
Director,postmarked no later than the last calendar day of the month following the completed reporting period.
The first DMR is due on the last day of the month following the issuance of the permit or in the case of a new
facility,on the last day of the month following the commencement of discharge.Duplicate signed copies of these,
and all other reports required herein, shall be submitted to the following address:
NC DENR/Division of Water Quality/Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
3.Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges.The
devices shall be installed,calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device.Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10%from the true discharge rates throughout the range of expected discharge
volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.
The Director shall approve the flow measurement device and monitoring location prior to installation.
Once-through condenser cooling water flow monitored by pump logs,or pump hour meters as specified in Part I
of this permit and based on the manufacturer's pump curves shall not be subject to this requirement.
4.Test Procedures
Laboratories used for sample analysis must be certified by the Division.Permittees should contact the Division's
Laboratory Certification Section(919 733-3908 or http://portal.ncdenr.org/web/wq/lab/cert)for information
regarding laboratory certifications.
Facilities whose personnel are conducting testing of field-certified parameters only must hold the appropriate field
parameter laboratory certifications.
Test procedures for the analysis of pollutants shall conform to the EMC regulations(published pursuant to NCGS
143-215.63 et. seq.),the Water and Air Quality Reporting Acts,and to regulations published pursuant to Section
304(g), 33 USC 1314,of the CWA(as amended),and 40 CFR 136; or in the case of sludge use or disposal,
approved under 40 CFR 136,unless otherwise specified in 40 CFR 503,unless other test procedures have been
specified in this permit [40 CFR 122.41].
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To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection
and reporting levels that are below the permit discharge requirements and all data generated must be reported
down to the minimum detection or lower reporting level of the procedure. If no approved methods are determined
capable of achieving minimum detection and reporting levels below permit discharge requirements,then the most
sensitive(method with the lowest possible detection and reporting level)approved method must be used.
5. Penalties for Tampering
The CWA provides that any person who falsifies,tampers with,or knowingly renders inaccurate,any monitoring
device or method required to be maintained under this permit shall,upon conviction,be punished by a fine of not
more than$10,000 per violation,or by imprisonment for not more than two years per violation,or by both.If a
conviction of a person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than$20,000 per day of violation,or by imprisonment of not more than 4 years,
or both [40 CFR 122.41].
6. Records Retention
Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use
and disposal activities,which shall be retained for a period of at least five years(or longer as required by 40 CFR
503),the Permittee shall retain records of all monitoring information,including:
> all calibration and maintenance records
> all original strip chart recordings for continuous monitoring instrumentation
> copies of all reports required by this permit
> copies of all data used to complete the application for this permit
These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement,report or application.This period may be extended by request of the Director at any time [40 CFR
122.41].
7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit,the Permittee shall record the
following information[40 CFR 122.41]:
a. The date,exact place,and time of sampling or measurements;
b. The individual(s)who performed the sampling or measurements;
c. The date(s)analyses were performed;
d. The individual(s)who performed the analyses;
e. The analytical techniques or methods used; and
f. The results of such analyses.
8. Inspection and Entry
The Permittee shall allow the Director,or an authorized representative(including an authorized contractor
acting as a representative of the Director),upon the presentation of credentials and other documents as may be
required by law,to;
a. Enter,at reasonable times,upon the Permittee's premises where a regulated facility or activity is located or
conducted,or where records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this
permit;
c. Inspect at reasonable times any facilities,equipment(including monitoring and control equipment),
practices,or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the CWA,any substances or parameters at any location[40 CFR 122.41(i)].
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Chemours Fayetteville 004 Permit NC0090042
Section E. Reporting Requirements
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit.The discharge of
any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall
constitute a violation of the permit.
2.Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility[40 CFR 122.41(1)].Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR
122.29(b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants discharged.
This notification applies to pollutants subject neither to effluent limitations in the permit,nor to notification
requirements under 40 CFR 122.42(a)(1); or
c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices,and
such alteration,addition or change may justify the application of permit conditions that are different from or
absent in the existing permit, including notification of additional use or disposal sites not reported during the
permit application process or not reported pursuant to an approved land application plan.
3.Anticipated Noncompliance
The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other
activities that might result in noncompliance with the permit [40 CFR 122.41(1)(2)].
4. Transfers
This permit is not transferable to any person without prior written notice to and approval from the Director in
accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1,in
particular NCGS 143-215.1(b)(4)b.2., and may require modification or revocation and reissuance of the permit,
or a minor modification,to identify the new permittee and incorporate such other requirements as may be
necessary under the CWA[40 CFR 122.41(1)(3), 122.61] or state statute.
5.Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)].
a. Monitoring results must be reported on a Discharge Monitoring Report(DMR) (See Part II.D.2)or forms
provided by the Director for reporting results of monitoring of sludge use or disposal practices.
b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures
approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate
instrument governing the discharge,the results of such monitoring shall be included in the calculation and
reporting of the data submitted on the DMR.
6. Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment.Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances.A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances.The written submission
shall contain a description of the noncompliance, and its cause;the period of noncompliance,including exact
dates and times,and if the noncompliance has not been corrected,the anticipated time it is expected to
continue; and steps taken or planned to reduce,eliminate,and prevent reoccurrence of the noncompliance [40
CFR 122.41(1)(6)].
b. The Director may waive the written report on a case-by-case basis for reports under this section if the oral
report has been received within 24 hours.
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at(800)662-7956, [phone] or(919)733-3300.
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Chemours Fayetteville 004 Permit NC0090042
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at
the time monitoring reports are submitted.The reports shall contain the information listed in Part II.E.6. of this
permit [40 CFR 122.41(1)(7)].
8. Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted
incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or
information[40 CFR 122.41(1)(8)].
9.Noncompliance Notification
The Permittee shall report by telephone to either the central office or the appropriate regional office of the
Division as soon as possible,but in no case more than 24 hours or on the next working day following the
occurrence or first knowledge of the occurrence of any of the following:
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester;the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons,that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failures of pumps, aerators,compressors, etc.
c. Any failure of a pumping station, sewer line,or treatment facility resulting in a by-pass without treatment of
all or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this
permit.
10.Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2)or Section 308 of the Federal Act,
33 USC 1318,all reports prepared in accordance with the terms shall be available for public inspection at the
offices of the Division.As required by the Act,effluent data shall not be considered confidential.Knowingly
making any false statement on any such report may result in the imposition of criminal penalties as provided for
in NCGS 143215.1(b)(2)or in Section 309 of the Federal Act.
11. Penalties for Falsification of Reports
The CWA provides that any person who knowingly makes any false statement,representation, or certification in
any record or other document submitted or required to be maintained under this permit, including monitoring
reports or reports of compliance or noncompliance shall,upon conviction,be punished by a fine of not more than
$25,000 per violation,or by imprisonment for not more than two years per violation,or by both[40 CFR
122.41].
12. Annual Performance Reports
Permittees who own or operate facilities that collect or treat municipal or domestic waste shall provide an
annual report to the Permit Issuing Authority and to the users/customers served by the Permittee(NCGS 143-
215.1 C).The report shall summarize the performance of the collection or treatment system, as well as the extent
to which the facility was compliant with applicable Federal or State laws,regulations and rules pertaining to
water quality. The report shall be provided no later than sixty days after the end of the calendar or fiscal year,
depending upon which annual period is used for evaluation.
The report shall be sent to:
NC DENR/Division of Water Quality/Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
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Chemours Fayetteville 004 Permit NC0090042
PART III OTHER
REQUIREMENTS
Section A. Construction
a. The Permittee shall not commence construction of wastewater treatment facilities,nor add to the plant's
treatment capacity,nor change the treatment process(es)utilized at the treatment plant unless(1)the Division
has issued an Authorization to Construct(AtC)permit or(2)the Permittee is exempted from such AtC permit
requirements under Item b. of this Section.
b. In accordance with NCGS 143-215.1(a5) [SL 2011-394],no permit shall be required to enter into a contract for
the construction,installation,or alteration of any treatment work or disposal system or to construct, install,or
alter any treatment works or disposal system within the State when the system's or work's principle function is
to conduct,treat,equalize,neutralize, stabilize,recycle,or dispose of industrial waste or sewage from an
industrial facility and the discharge of the industrial waste or sewage is authorized under a permit issued for the
discharge of the industrial waste or sewage into the waters of the State. Notwithstanding the above,the permit
issued for the discharge may be modified if required by federal regulation.
c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been
submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall,upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of -Toxic Substances
The Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe(40 CFR
122.42):
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis,
of any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following
"notification levels";
(1) One hundred micrograms per liter(100 µg/L);
(2) Two hundred micrograms per liter(200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per
liter(500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol;and one milligram per liter(1
mg/L) for antimony;
(3) Five times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge,on a non-routine or infrequent
basis, of a toxic pollutant which is not limited in the permit,if that discharge will exceed the highest of the
following"notification levels";
(1) Five hundred micrograms per liter(500 µg/L);
(2) One milligram per liter(1 mg/L) for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facility Closure Requirements
The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system
covered by this permit.The Division may require specific measures during deactivation of the system to prevent
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Chemours Fayetteville 004 Permit NC0090042
adverse impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit
continue at the permitted facility.
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