NC0005177_Draft Permit_20240305

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR,
Director
NORTH CAROLINA
Environmental Quality
March 4, 2024
James Watts, Plant Manager
Livent USA Corporation
1115 Bessemer City Kings Mtn Highway 161
Bessemer City, North Carolina 28016
Subject:
Dear Mr. Watts:
Draft NPDES Permit Renewal
Permit NC0005177
Livent USA Corporation WWTP
Gaston County
Grade II Facility
SIC Code 2819 & 2869
Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please
review this draft carefully to ensure thorough understanding of the requirements and conditions it
contains.
The Draft Permit contains the following significant changes from your current permit:
• Low-level mercury, using method 1631E, once per permit cycle, has been added to the
permit.
• PFAS quarterly monitoring was added to the permit to implement EPA's PFAS guidance.
• Per the North Carolina Standard, 15 NCAC 0213.0508, weekly Temperature monitoring
has been added to outfall 001. In addition, monitoring frequency has been increased to
weekly for BOD, TSS and conductivity for outfall 001.
• Per the North Carolina Standard, 15 NCAC 02B.0508, monthly Instream (Upstream and
Downstream) sampling for Temperature, Conductivity, and Dissolved Oxygen has been
added.
The NPDES standard conditions (Parts II, III, and IV) that are a part of the permit are not included
in this draft document (cover, map, and Part I). The conditions are the same as in your current
permit except that agency and division names have been updated. The latest version is available at
https://bit.ly/3k5NFaL and can be viewed online or downloaded as a PDF file.
Concurrent with this notification the Division is publishing a notice in a newspaper having
circulation in the general Gaston County area, soliciting public comments on this draft permit.
Please provide any written comments you may have to the following: NCDEQ/DWR, NPDES
D E Q ,fJ North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA (J1(�.'�O'�.(�OQO
Department of Emlmnmenfal Duali�

Permitting Branch, 1617 Mail Service Center, Raleigh, NC 27699-1617 no later than 30 days
after receipt of this draft permit.
If you have questions concerning this draft permit, please contact me at [phone] or by
email at [e-mail].
Sincerely,
Fenton Brown Jr
Environmental Engineer I1
NPDES Industrial Permitting Unit
Hardcopy: NPDES Files
Ecopy: US EPA Region 4 (with fact sheet)
DWR/Mooresville Regional Office/Water Quality/Andrew Pitner and Wes Bell
DWR/Aquatic Toxicology Branch/Cindy Moore & Molly Nicholson
D E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
NORTH CAROLINA 919.707.9000
Depanmem of Envlmnmenml Dual

Livent USA Corp Renewal
Permit NC0005177
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
N( PDES)
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Livent USA Corporation (formerly FMC Corp.)
is hereby authorized to discharge wastewater from outfall located at the
Livent USA Corporation Wastewater Treatment Plant
1115 Bessemer City Kings Mtn Highway 161
Bessemer City, NC
Gaston County
to receiving waters designated as unnamed Tributary to First Creek sourced to Abernethy
Creek within the Catawba River Basin in accordance with effluent limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III, and IV hereof.
This permit shall become effective .............................. Month xx, 2024.
This permit and authorization to discharge shall expire at midnight on XXX, XX, 2029.
Signed this day ....... xxx.
Douglas Dowden
Environmental Programs Supervisor II
NPDES Industrial Permitting Unit
Division of Water Resources
Page 1 of 13

Livent USA Corp Renewal
Permit NC0005177
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 described herein.
Livent USA Corporation
is hereby authorized to:
1. Continue to operate and maintain the Livent USA Corporation Wastewater Treatment facility,
an existing 0.615 MGD facility consisting of the following components:
o GE Reverse Osmosis filtration system (Permeate rate 100 GPM, Cone. Rate 25
GPM) - Currently offline.
o Hydrogen peroxide addition (Removed)
o pH adjustment system (50% Sulfuric acid tote and metering pump)
o 3 Acre Research & Development Pond (Spill and Stormwater Control)
o 23 Acre Lower retention pond (Equalization and stabilization)
o Effluent flow weir (Point source discharge flow measurement/Aeration)
2. Continue to operate a stormwater conveyance system and two ponds, the first for sedimentation
and the second for polishing; and
3. Discharge treated wastewater and stormwater via Outfall 001, retention pond toe drains via
Outfall 002, and stormwater, boiler blowdown, and cooling water via Outfall 004 at the
locations specified on the attached map to an unnamed tributary to First Creek sourced to
Abernethy Creek currently classified as class C waters in subbasin 03-08-37 [HUC: 03050103]
of the Catawba River Basin.
Page 2 of 13

Livent USA Corp Renewal Permit NC0005177
Part I
A.(L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - OUTFALL 001
[15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade II
Physical/Chemical Water Pollution Control System [15A NCAC 08G .0306]
(a.) During the period beginning on the effective date of the permit and lasting until permit
expiration, the permittee is authorized to discharge treated wastewater and stormwater
from Outfall 001. Such discharges shall be limited and monitored' by the permittee as
specified below:
PARAMETER
Parameter Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location
Flow 50050
0.615 MGD
Continuous
Recording
I or E
BOD, 5-day, 20°C C0310
30.0 mg/L
45.0 mg/L
Weekly
Grab
E
Total Suspended Solids C0530
30.0 mg/L
45.0 mg/L
Weekly
Grab
E
pH 00400
Between 6.0 and 9.0 Standard
Units
Weekly
Grab
E
Dissolved Oxygen 00300
Daily Average > 5.0 mg/L
Weekly
Grab
E
Temperature (°C) 00010
Monitor and Report
Weekly
Grab
E
Conductivity (µmhos/cm) 00094
Monitor and Report
Weekly
Grab
E
Total Chloride (mg/L) 00940
Monitor and Report
Quarterly
Grab
E
Total Phosphorus (mg/L) C0665
Monitor and Report
Quarterly
Grab
E
Total Nitrogen 3 (mg/L) C0600
Monitor and Report
Quarterly
Grab
E
TKN (mg/L) 00625
Monitor and Report
Quarterly
Grab
E
NO3N+NO2N (mg/L) 00630
Monitor and Report
Quarterly
Grab
E
PFAS4 variable
See Condition A.(7)
Quarterly
Grab
E
Chronic Toxicity' TGP3B
Monitor and Report
Quarterly
Grab
E
Total Mercury' (ng/L) COMER
Monitor and Report
Once /Permit
Cycle
Grab
E
Dissolved Oxygen (mg/L) 00300
Monitor and Report
Monthly
Grab
U and D
Temperature °C 00010
Monitor and Report
Monthly
Grab
U and D
Conductivity (µmhos/cm) 00094
Monitor and Report
Monthly
Grab
U and D
Footnotes:
1. The Permittee shall submit Discharge Monitoring Reports electronically using NCDWR's eDMR
application system. See Special Condition A (6).
2. Sample locations I -Influent, E-Effluent, U-Upstream in Abernethy Creek at Goins Farm Road and Ike
Brooks Drive, D-Downstream in Abernethy Creek by Mountains View Road.
3. For a given wastewater sample, TN = TKN + NO3-N + NO2-N, where TN is Total Nitrogen, TKN is
Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
4. See Special Condition A. (7).
5. Chronic Toxicity (Ceriodaphnia dubia) P/F at 82% with testing in January, April, July, and October.
See Special Condition A. (4).
6. Low-level mercury monitoring using EPA Method 1631E has been added to the permit, to be
conducted once per permit cycle.
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 13

Livent USA Corp Renewal
Permit NC0005177
A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - OUTFALL 002
[15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade II
Physical/Chemical Water Pollution Control System [15A NCAC 08G.0306]
(a.) During the period beginning on the effective date of the permit and lasting until permit
expiration, the permittee is authorized to discharge retention pond toe drains from
Outfall 002. Such discharges shall be limited and monitored' by the permittee as
specified below:
PARAMETER
Parameter Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Locationz
Flow 50050
Monitor and Report
Quarterly
Instantaneous
E
BOD, 5-day, 20°C C0310
30.0 mg/L
45.0 mg/L
Quarterly
Grab
E
Total Suspended Solids C0530
30.0 mg/L
45.0 mg/L
Quarterly
Grab
E
pH 00400
Between 6.0 and 9.0 Standard
Units
Quarterly
Grab
E
Dissolved Oxygen 00300
Daily Average > 5.0 mg/L
Quarterly
Grab
E
Temperature (°C) 00010
Monitor and Report
Quarterly
Grab
E
Conductivity (µmhos/cm) 00094
Monitor and Report
Quarterly
Grab
E
Total Chloride (mg/L) 00940
Monitor and Report
Quarterly
Grab
E
Total Phosphorus (mg/L) C0665
Monitor and Report
Quarterly
Grab
E
Total Nitrogen 3 (mg/L) C0600
Monitor and Report
Quarterly
Grab
E
Footnotes:
1. The Permittee shall submit Discharge Monitoring Reports electronically using NCDWR's eDMR
application system. See Special Condition A (6).
2. Sample location: E-Effluent. Where no measurable discharge occurs, "no discharge" shall be clearly
noted on the submitted monthly discharge monitoring report (DMR).
3. For a given wastewater sample, TN = TKN + NO3-N + NOz-N, where TN is Total Nitrogen, TKN is
Total Kjeldahl Nitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
(b) There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 13

Livent USA Corp Renewal
Permit NC0005177
A.(3.) EFFLUENT LIMITATATIONS AND MONITORING REQUIREMENTS - OUTFALL
004 - STORMWATER
[I 5A NCAC 02B.0400 et seq., 15A NCACO2B.0500 et seq.] Grade II
(a.) During the period beginning on the effective date of the permit and lasting until permit
expiration, the permittee is authorized to discharge stormwater and intermittently
discharge boiler blowdown, steam condensate and non -contact cooling water from
Outfall 004. Such discharges shall be limited and monitored' by the permittee as
specified below:
PARAMETER
Parameter Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow3 50050
Monitor and Report
Monthly
Instantaneous
E
Total Suspended Solids C0530
Monitor and Report
Monthly
Grab
E
pH 00400
Between 6.0 and 9.0
Standard Units
Monthly
Grab
E
Conductivity (µmhos/cm) 00094
Monitor and Report
Monthly
Grab
E
Oil and Grease (mg/L) 00556
Monitor and Report
Quarterly
Grab
E
Footnotes:
1. The Permittee shall submit Discharge Monitoring Reports electronically using NCDWR's eDMR
application system. See Special Condition A (6).
2. Effluent=E; Where no measurable discharge occurs, "no discharge" shall be clearly noted on
the submitted monthly discharge monitoring report (DMR).
3. Where no measurable discharge occurs, "no discharge" shall be clearly noted on the submitted
monthly discharge monitoring report (DMR).
(b.) There shall be no discharge of floating solids or visible foam in other than trace amounts.
(c.) There shall be no chromium, zinc or copper added to the cooling water. The permittee shall
obtain approval from the Division prior to the use of any biocide in the cooling water (See A.
(5))•
Page 5 of 13

Livent USA Corp Renewal
Permit NC0005177
A.(4.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
[15A NCAC 02B .0200] [15A NCAC 02B .0500 et seq]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia dubia at an effluent concentration of 82%.
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 January, April,
July, and October. 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, [e-mail].
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 final 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.
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
Page 6 of 13

Livent USA Corp Renewal
Permit NC0005177
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.
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. If the permittee fails multiple quarters, i.e.
2 quarters out of four, then the permittee would need to send a `failed" sample to a NC Certified
Laboratory for a THE (Toxic Reduction Evaluation).
A.(5.) BIOCIDE CONDITION
[G.S. 143-215, 143-215.1]
The permittee shall obtain approval from the Division prior to the use of any biocide in the cooling
water discharged from this facility. Approval should be requested at least 90 days in advance of the
planned use of any biocide which may be toxic to aquatic life (other than previously approved
compounds). The request should be submitted to the Aquatic Toxicology Unit of the Division's
Environmental Sciences Section at the following address:
NC DEQ / DWR / Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
[phone]
Consult the Aquatic Toxicology Unit for specific items that should be submitted with each request
(such as Biocide Worksheet Form 101, MSDS documentation, etc.). Completion of Biocide
Worksheet Form 101 is not necessary for those outfalls with toxicity testing requirements.
Concentrations of chromium, copper or zinc added to biocides shall not exceed applicable water
quality standards (or action levels) in the receiving stream. These concentrations should be calculated
using the Biocide Worksheet Form 101 with the Supplemental Metals Analysis Worksheet.
A.(6.) 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
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Livent USA Corp Renewal
Permit NC0005177
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.
Until such time that the state's eDMR application is compliant with EPA's Cross -Media
Electronic Reporting Regulation (CROMERR), permittees will be required to submit all
discharge monitoring data to the state electronically using eDMR and will be required to
complete the eDMR submission by printing, signing, and submitting one signed original and a
copy of the computer printed eDMR to the following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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 mailing address above. 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.
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Livent USA Corp Renewal
Permit NC0005177
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.federalre ig ster.gov/documents/2015/10/22/2015-24954/national-pollutant-discharge-
elimination-system-npdes-electronic-reporting
Electronic submissions must start by the dates listed in the "Reporting Requirements."
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:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Si2natory 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
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Livent USA Corp Renewal
Permit NC0005177
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.221. 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 of fines and imprisonment for knowing violations. "
5. Records Retention [Supplements Section D. (6.)]
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.(7.) PFAS MONITORING IN THE EFFLUENT [G.S. 143.215.1(b)]
(a) Monitoring of per- and polyfluoroalkyl substances (PFAS) shall be conducted using the most
current method 1633 (EPA, January 2024) and shall include all target analytes listed under
Table 1 of the draft method until such time as the EPA publishes a 40 CFR Part 136 Final PFAS
Method for wastewater in the Federal Register, after which monitoring of PFAS shall be
conducted using the approved Final PFAS Method. Monitoring takes effect the first full calendar
quarter following three (3) months after the effective date of the permit (Month xx, 2024) and
will be at a quarterly frequency.
Appendix A has been added to the permit to identify the current parameters listed under Table
1 of the Method 1633 (EPA, January 2024) Analysis of Per- and Polyfluoroalkyl
Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples and the appropriate
PCS codes for use when reporting in the electronic Discharge Monitoring Reports
(eDMRs). The list of parameters may also be found at:
https://www.epa.gov/system/files/documents/2024-01/method-1633-final-for-web-posting.pdf
Until PFAS monitoring is conducted using the approved Final PFAS Method for wastewater,
the Permittee shall include a qualifier in their PFAS reports noting, "Method 1633 (EPA,
January 2024) used — certification waived."
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Livent USA Corp Renewal
Permit NC0005177
Appendix A. PFAS Target Analytes EPA Method 1633 (EPA, January 2024)
Target Analyte Name Abbreviation
CAS Number
Parameter Code
Perfluoroalkyl carboxylic acids
Perfluorobutanoic acid
PFBA
375-22-4
51522
Perfluoropentanoic acid
PFPeA
2706-90-3
51623
Perfluorohexanoic acid
PFHxA
307-24-4
51624
Perfluoroheptanoic acid
PFHpA
375-85-9
51625
Perfluorooctanoic acid
PFOA
335-67-1
51521
Perfluorononanoic acid
PFNA
375-95-1
51626
Perfluorodecanoic acid
PFDA
335-76-2
51627
Perfluoroundecanoic acid
PFUnA
2058-94-8
51628
Perfluorododecanoic acid
PFDoA
307-55-1
51629
Perfluorotridecanoic acid
PFTrDA
72629-94-8
51630
Perfluorotetradecanoic acid
PFTeDA
376-06-7
51531
Perfluoroalkyl sulfonic acids
Perfluorobutanesulfonic acid
PFBS
375-73-5
52602
Perfluoropentanesulfonic acid
PFPeS
2706-91-4
52610
Perfluorohexanesulfonic acid
PFHxS
355-46-4
52605
Perfluoroheptanesulfonic acid
PFHpS
375-92-8
52604
Perfluorooctanesulfonic acid
PFOS
1763-23-1
52606
Perfluorononanesulfonic acid
PFNS
68259-12-1
52611
Perfluorodecanesulfonic acid
PFDS
335-77-3
52603
Perfluorododecanesulfonic acid
PFDoS
79780-39-5
52632
Fluorotelomer sulfonic acids
1H,1H,2H,2H-Perfluorohexane sulfonic acid
4:2FTS
757124-72-4
52607
1H,1H,2H2H-Perfluorooctane sulfonic acid
6:2FTS
27619-97-2
52608
1H,1H,2H,2H-Perfluorodecane sulfonic acid
8:2FTS
39108-34-4
52609
Perfluorooctane sulfonamides
Perfluorooctanesulfonamide
PFOSA
754-91-6
51525
N-methyl perfluorooctanesulfonamide
NMeFOSA
31506-32-8
52641
N-ethyl perfluorooctanesulfonamide
NEtFOSA
4151-50-2
52642
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Livent USA Corp Renewal
Permit NC0005177
Table continued from Appendix A. PFAS Target Analytes EPA Method 1633 (EPA, January
2024):
Target Analyte Name Abbreviation CAS Number
Parameter Code
Perfluorooctane sulfonamidoacetic acids
N-methyl perfluorooctanesulfonamidoacetic acid
NMeFOSAA
2355-31-9
51644
N-ethyl perfluorooctanesulfonamidoacetic acid
NEtFOSAA
2991-50-6
51643
Perfluorooctane sulfonamide ethanols
N-methyl perfluorooctanesulfonamidoethanol
NMeFOSE
24448-09-7
51642
N-ethyl perfluorooctanesulfonamidoethanol
NetFOSE
1691-99-2
51641
Per- and Polyfluorother carboxylic acids
Hexafluoropropylene oxide dimer acid
HFPO-DA
13252-13-6
52612
4,8-Dioxa-3H-perfluorononanoic acid
ADONA
919005-14-4
52636
Perfluoro-3-methoxypropanoic acid
PFMPA
377-73-1
PF002
Perlfuoro-4-methoxybutanoic acid
PFMBA
863090-89-5
PF006
Nonafluoro-3,6-dioxaheptanoic acid
NFDHA
151772-58-6
52626
Ether sulfonic acids
9-Chlorohexadecafluoro-3-oxanonane-l-sulfonic acid
9C1-PF3ONS
756426-58-1
PF003
11-Chloroeicosafluoro-3-oxaundecane-l-sulfonic acid
11C1-PF3OUdS
763051-92-9
PF004
Perfluoro(2-ethoxyethane) sulfonic acid
PFEESA
113507-82-7
52629
Fluorotelomer carboxylic acids
3-Perfluoropropyl propanoic acid
3:3FTCA
356-02-5
PF001
2H,2H,3H,3H-Perfluorooctanoic acid
5:3FTCA
914637-49-3
PF007
3-Perfluoroheptyl propanoic acid
7:3FTCA
812-70-4
PF005
Page 12 of 13

Livent USA Corp Renewal
Permit NC0005177
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USGS Quad #: F13SE Bessemer City, N.C.
Outfall 1 35o 16' 43.6" N 810 17' 54.9" W
Outfall 2 35o 16' 44.5" N 810 17' 54.4" W Facillty
Outfall 3 35o 15' 42.8" N 810 17' 57.3" W Location
Upstream 35o 14' 59.1" N 810 18' 14.8" W
Livent USA Corp. NC0005177
North
Downstream 350 15' 27.0'N 810 17' 16.2" W Gaston County
Page 13 of 13