NC0024538_Draft Permit_20240820

Docusign Envelope ID:38B4E322-712E-4E56-8813-2AD9726BBC24
ROY COOPER c- )
Governor AVi
ELIZABETH S.BISER
Secretory
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
August 20, 2024
Mr. Brian Wilson, Director of Water Resources
City of Shelby
1940 S. Lafayette Street
Shelby,NC 28151-0207
Subject: Draft NPDES Permit Renewal
Permit NC0024538
First Broad River WWTP
Cleveland County
Grade IV Biological WPCS
SIC Code 4952
Dear Mr. Wilson:
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. There are several changes from the existing permit, including the following:
• Based on the reasonable potential analysis (RPA) showing no reasonable potential to
violate state water quality standards,the monitoring requirement for Silver has been removed
from the permit [See A.(1)].
1 • Based on the reasonable potential analysis (RPA) showing no reasonable potential to
violate state water quality standards,the limit requirements for Cyanide were removed and the
monitoring requirement has been reduced from monthly to quarterly from the permit [See
A.(1)].
• A special condition to monitor effluent PFAS chemicals quarterly has been added to the
permit, to be effective six (6)months after EPA has a wastewater method in 40 CFR 136
method published in the Federal Register[See Special Condition A.(5.)PFAS Monitoring
Requirements].
• Some of the wording has changed in Special Condition A. (2.), Chronic Toxicity Permit
Limit, please review each paragraph carefully.
• Special Condition A. (3.) has been modified to include the specific three years in which
the Effluent Pollutant Scan shall be performed (2026, 2027, and 2028).
• A notation was made concerning the Electronic Reporting Rule—NPDES Electronic
Reporting Rule—Phase 2 Extension. EPA extended the Phase 2 deadline to December 21,
2025.
D_E Q North Carolina Department of Environmental Quality I Division of Water Resources
5l2 North Salisbury Street I1611 Mail Service Center I Raleigh,North Carolina 27699-1611
No..i,,,..e,i,,,;;,,,,,uo0...;\ / 919.707.9000

Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
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 Cleveland County area, soliciting public comments on this draft permit.
Please provide any written comments you may have to the following: NCDEQ/DWR,NPDES
Permitting Branch, 1617 Mail Service Center,Raleigh,NC 27699-1617 no later than 30 days after
receipt of this draft permit.
Following the 30-day public comment period, the Division will review all pertinent comments
and take appropriate action prior to issuing a final permit. If you have questions concerning this
draft permit, please call me at [phone] or by email at [e-mail].
Sincerely,
—DocuSgned by:
1:7Tif°M ," vironmental Engineer III
NPDES ARPA Permitting Unit
Hardcopy: NPDES Files
Ecopy: US EPA Region 4
DWR/Mooresville Regional Office/Water Quality/Andrew Pitner
DWR/Operator Certification Program/Jeff Talbot
DWR/Aquatic Toxicology Branch/Cindy Moore &Molly Nicholson
DWR/Municipal Permitting Unit/Keyes McGee
SC DWR Brenda Green ([e-mail])
Notch ra Depaml Qli I i of esources
512 NorthCa Salisburyolin Streetrtment 1 of1611Env iron Mail Service
ua Centetyr ID Raleigh.vision NorthWater Carolina 27699-1611
u;o„o,t..n a Imho.�w awft /`� 919.707.9000

Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions ofNorth 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
City of Shelby
is hereby authorized to discharge wastewater from a facility located at the
First Broad River Wastewater Treatment Plant
1940 S. Lafeyette Street
Shelby
Cleveland County
to receiving waters designated as First Broad River in the Broad 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 August 31, 2029.
Signed this day Month xx, 2024.
DRAFT
Michael J. Montebello, NPDES Permitting Branch Chief
Division of Water Resources
f 7
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Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility,whether for operation or discharge are hereby revoked.
As of this permit issuance effective date,any previously issued permit bearing this number is no longer
effective.Therefore,the exclusive authority to operate and discharge from this facility arises under the
permit conditions, requirements, terms, and provisions included herein.
The City of Shelby is hereby authorized to:
1. Continue to operate a 6.0 MGD wastewater treatment facility that includes the following:
• Coarse manual and fine rotary mechanical screens
• Grit Removal System
• Main Lift Station with four centrifugal pumps
• External Powerhouse for Influent
• Primary Splitter Box
• Two (2) primary clarifiers
• Raw Sludge Pump Station
• Three (3)Aeration Basins, each with:
o One (1)Anoxic Section with three (3) cells each
o Four(4) Oxic Zones
• Four(4) Secondary Clarifiers
• WAS Pump Station
• One (1) Gravity Sludge Thickener
• One (1) Gravity Sludge Pump Building
• One (1) two-compartment contact tank for chlorine disinfection and sulfur dioxide
dechlorination
• Sludge Holding Tank
• One(1)2000 kW Stand-by Generator(Whole Plant)and one(1)800 kW Generator(Influent
Only)
• Two (2)Anaerobic Digestors
• One (1) Sludge Holding Tank
• Digester Control Building -Boilers and Pumps
• Dewatering Facility with Polymer Feed and Two (2)Belt Presses
• Covered Dewatered Solids Pad
2. The facility is located at the First Broad River WWTP, 1940 South Lafayette Street,Shelby in Cleveland
County.
3. Discharge from said treatment works via Outfall 001 at the location specified on the attached map into
First Broad River, classified C waters in the Broad River Basin.
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Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
PART I
EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [6.0 MGD]
A.(1.) [15A NCAC 02B .0400 ET SEQ., 15A NCACO2B.0500 ET SEQ.]
Grade IV Biological Water Pollution Control System [15A NCAC 08G .0302]
(a.) During the period beginning on the effective date of the permit and lasting until permit expiration,
the permittee is authorized to discharge treated municipal and industrial wastewater from Outfall
001. Such discharges shall be limited and monitored' by the permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
PARAMETER Monthly Weekly Daily Measurement Sample Sample
Parameter Code Average Average Maximum Frequency Type Location'
Flow 50050 6.0 MGD Continuous Recording I or E
Total Monthly Flow(MG) 82220 Monitor and Report Monthly Calculated E
BOD,5 day,20°C 3 C0310 25.0 mg/L 37.5 mg/L Daily Composite I and E
Total Suspended Solids3 C0530 30.0 mg/L 45.0 mg/L Daily Composite I and E
NH3 as N (Apr 1 -Oct 31) C0610 4.7 mg/L 14.1 mg/L Daily Composite E
NH3 as N (Nov 1-Mar 31) C0610 18.5 mg/L 35.0 mg/L Daily Composite E
Fecal Coliform(geometric mean) 31616 200/100 mL 400/100 mL Daily Grab E
Dissolved Oxygen DailyAverage_5.0 mg/L DailyGrab E
yg 00300 g g
pH 00400 Between 6.0 and 9.0 Standard Units Daily Grab E
Temperature (°C) 00010 Monitor and Report Daily Grab E
Total Residual Chlorine° 50060 28 µg/L Daily Grab E
Conductivity (µmhos/cm) 00094 Monitor and Report Daily Grab E
Total Phosphorus(mg/L) C0665 Monitor and Report Quarterly Composite E
TKN (mg/L) 00625 Monitor and Report Quarterly Composite E
NO3-N+NO2-N (mg/L) 00630 Monitor and Report Quarterly Composite E
Total Nitrogen 3 (mg/L) C0600 Monitor and Report Quarterly Calculated E
Total Copper(µg/L) 01042 Monitor and Report Quarterly Composite_ E
Total Cyanide 6(µg/L) 00720 Monitor and Report Quarterly Composite E
PFAS various Footnote 7 Footnote 7 Grab E
Chronic Toxicity 8 TGP3B Monitor and Report Quarterly Composite E
Effluent Pollutant Scan 9 NCO] Monitor and Report Footnote 9 Footnote 9 E
Hardness10-Total as CaCO3(mg/L) 00900 Monitor and Report Quarterly Composite E
Hardness10-Total as CaCO3(mg/L) 00900 Monitor and Report Quarterly Grab U
Dissolved Oxygen (mg/L) 00300 Monitor and Report Variable2 Grab U and D
Temperature °C 000I0 Monitor and Report Variable' Grab U and D
Conductivity (pmhos/cm) 00094 Monitor and Report Variable2 Grab U and D
Footnotes:
1. The pennittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Special Condition A.(6.).
2. Upstream:upstream 100 feet above outfall.Downstream:downstream above Beaverdam Creek.Stream samples
shall be collected weekly from October 1 through May 30,and 3/week from June 1 through September 30.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15%of the
respective influent value(85%removal).
4. The facility shall monitor TRC when using chlorination for disinfection.The Division shall consider all effluent
total residual chlorine values reported below 50 41 to be in compliance with the permit. However,the
permittee shall continue to record and submit all values reported by a North Carolina certified laboratory
(including field certified),even if these values fall below 50 14/1.
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Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
5. For a given wastewater sample,TN=TKN +NO3-N +NO2-N, where TN is TotalNitrogen, TKN is Total
KjeldahlNitrogen, and NO3-N and NO2-N are Nitrate and Nitrite Nitrogen, respectively.
6. Due to difficulties quantifying cyanide in a wastewater matrix,the Division shall consider all values reported
below 10 µg/L to be"compliant"with the permit.However,the Permittee shall submit to DWR all
values reported by a North Carolina-certified test method(even if values fall below 10 µg/L),and the Permittee
shall consider all reported values when calculating averages,if any,as required under the permit.
7. See Special Condition A.(5.).
8. Whole Effluent Toxicity shall be monitored using the Pass/Fail Chronic Toxicity test with Ceriodaphnia dub ia at
17%effluent.Samples shall be collected in February,May,August,and November;see Section A.(2.).
9. The permittee shallperfomi three effluent pollution scans during the term of this permit.See Special Condition
A.(3.).
10. The permittee shall sample instream hardness upstream of the facility's discharge.The sample shall be
representative of the hardness in the stream.Effluent hardness shall be performed in conjunction with testing for
hardness dependent metals(cadmium,copper,lead,nickel,silver,and zinc).
There shall be no discharge of floating solids or visible foam in other than trace amounts.
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Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
A.(2.) 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 17%.
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.ATBAdeq.nc.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 ofthe aquatic toxicity(AT)test form
indicating the facility name,permit number,pipe number,county,and the month/year ofthe 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.
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Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
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
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.
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Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
A.(3.) EFFLUENT POLLUTANT SCANS.
[G.S. 143-215.1(b)]
The permittee shall perform a total of three (3) Effluent Pollutant Scans for all parameters listed below.
One scan must be perfomled in each of the following years: 2026, 2027, and 2028. Analytical methods
shall be in accordance with 40 CFR Part 136 and shall be sufficiently sensitive to determine whether
parameters are present in concentrations greater than applicable standards and criteria.Each annual sample
shall coincide with one quarterly toxicity test each year(see Condition A.(2.) (CHRONIC TOXICITY
PERMIT LIMIT QUARTERLY),and each must be collected in a different calendar quarter to represent
seasonal variation[i.e.,do not sample in the same quarter every year]. Unless otherwise indicated, metals
shall be analyzed as "total recoverable."
Ammonia(as N) C0610 Trans-1,2-dichloroethylene 34546 Bis(2-chloroethyl)ether 34273
Chlorine(total residual,TRC) 50060 1,1-dichloroethylene 34501 Bis(2-chloroisopropyl)ether 34283
Dissolved oxygen 00300 1,2-dichloropropane C0541 Bis(2-ethylhexyl)phthalate C0100
Nitrate/Nitrite 00630 1,3-dichloropropylene 77163 4-bromophenyl phenyl ether 34636
Kjeldahl nitrogen 00625 Ethylbenzene 34371 Butyl benzyl phthalate 34292
Oil and grease 00556 Methyl bromide 34413 2-chloronaphthalene 34581
Phosphorus C0665 Methyl chloride 34418 4-chlorophenyl phenyl ether 34641
Total dissolved solids 70295 Methylene chloride 34423 Chrysene 34320
Hardness 00900 1,1,2,2-tetrachloroethane 81549 Di-n-butyl phthalate 39110
Antimony 01097 Tetrachloroethylene 34475 Di-n-octyl phthalate 34596
Arsenic 01002 Toluene 34010 Dibenzo(a,h)anthracene 34556
Beryllium 01012 1,1,1-trichloroethane 34506 1,2-dichlorobenzene 34536
Cadmium 01027 1,1,2-trichloroethane 34511 1,3-dichlorobenzene 34566
Chromium C0034 Trichloroethylene 39180 1,4-dichlorobenzene 34571
Copper 01042 Vinyl chloride 39175 3,3-dichlorobenzidine 34631
Lead 01051 Acid-extractable compounds: Diethyl phthalate 34336
Mercury(Method 1631E) COMER P-chloro-m-cresol 34452 Dimethyl phthalate 34341
Nickel 01067 2-chlorophenol 34586 2,4-dinitrotoluene 34611
Selenium 01147 2,4-dichlorophenol 34601 2,6-dinitrotoluene C0626
Silver 01077 2,4-dimethylphenol 34606 1,2-diphenylhydrazine 34346
Thallium 01059 4,6-dinitro-o-cresol 34657 Fluoranthene C0376
Zinc 01092 2,4-dinitrophenol 34616 Fluorene 34381
Cyanide 00 72 0 2-nitrophenol 34591 Hexachlorobenzene C0700
Total phenolic compounds 32730 4-nitrophenol 34646 Hexachlorobutadiene C0702
Volatile manic compounds: Pentachlorophenol 39032 Hexachlorocyclo-pentadiene 34386
Acrolein 34210 Phenol 34694 Hexachloroethane 34396
Acrylonitrile 34215 2,4,6-trichlorophenol 34621 Indeno(1,2,3-cd)pyrene 34403
Benzene 34030 Base-neutral compounds: Isophorone 34408
Bromoform 32104 Acenaphthene 34205 Naphthalene 34696
Carbon tetrachloride 32102 Acenaphthylene 34200 Nitrobenzene 34447
Chlorobenzene 34301 Anthracene CO220 N-nitrosodi-n-propylamine 34428
Chlorodibromomethane 34306 Benzidine 39120 N-nitrosodimethylamine 34438
Chloroethane 85811 Benzo(a)anthracene C0526 N-nitrosodiphenylamine 34433
2-chloroethyl vinyl ether 34576 Benzo(a)pyrene 34247 Phenanthrene 34461
Chloroform 32106 3,4 benzofluoranthene 34230 Pyrene 34469
Dichlorobromomethane 32101 Benzo(ghi)perylene 34521 1,2,4-tichlorobenzene C0551
1,1-dichloroethane 34496 Benzo(k)fluoranthene 34242
1,2-dichloroethane 32103 Bis(2-chloroethoxy)methane 34278
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Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
(a.) Effluent Scan Reporting. Test results shall be reported electronically via eDMR by December 31 st
of each designated sampling year, except that, subject to prior written approval by the Director,
results can be reported on DWR Form DMR-PPA-1 or other form approved by the Director. The
permittee must at least report completion of the test in the eDMR system by entering"1" or"Y" for
parameter code NC01 -Annual Pollutant Scan. If written reports are approved, the report shall be
submitted to the following address:
North Carolina Division of Water Resources
Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Or the form may be uploaded at: https://edocs.deq.nc.gov/Forms/NPDES_WW-EDMR-
Supplemental-Form
(b.) 2°d-Species Toxicity Testing and Reporting.
(i.) In addition to the quarterly toxicity tests required in Condition A.(2.)((CHRONIC TOXICITY
PERMIT LIMIT (QUARTERLY)),),the Permittee shall perform and report the results of four
(4)toxicity tests using the same test methods using a second species of test organism suitable
to the tests being conducted.
(ii.) The 2nd species toxicity tests shall be conducted either:
(A) Once per quarter in a single 12-month period (four samples); if this option is chosen,
the sample for each 2nd species test shall coincide with the quarterly samples collected
for(CHRONIC TOXICITY PERMIT LIMIT( QUARTERLY); or
(B) Once per 12-month period in the four-and one-half year period prior to the scheduled
application for permit renewal(four samples); if this option is chosen, three of the
samples for the 2nd species test shall coincide with those for the annual effluent scans
and the coincident quarterly toxicity test,and each of the four annual samples shall be
collected in a different calendar quarter in order to represent seasonal variation.
(iii.) The results of the toxicity tests shall be submitted to the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Or, results can be sent to the email, [e-mail].
(iv.) Results of the 2'a species tests shall also be summarized in Part E (Toxicity Testing Data) of
EPA Municipal Application Form 2A when submitting the permit renewal application to the
NPDES Wastewater Program.
The Permittee may contact the Division's Aquatic Toxicology Branch at 919-743-8401 for
guidance on conducting the additional toxicity tests and reporting of the results.
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Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
A.(4.) MERCURY MINIMIZATION PLAN(MMP)
[G.S. 143-215.1 (b)]
The Permittee shall develop and implement a mercury minimization plan during this permit term.The
MMP shall be developed within 180 days of the permit effective date,and shall be available for inspection
on-site.A sample MMP was developed through a stakeholder review process and has been placed on the
Division website for guidance(https://deq.nc.gov/document/nc-model-mercury-minimization-plan-dwr-
npdes-swp-20130801).The MMP should place emphasis on identification of mercury contributors and
goals for reduction.Results shall be summarized and submitted with the next permit renewal.Performance
of the Mercury Minimization Plan will meet the requirements of the TMDL(Total Maximum Daily Load)
for mercury approved by USEPA on October 12,2012,unless and until a Waste Load Allocation specific to
this facility is developed and this NPDES permit is amended to require further actions to address the Waste
Load Allocation.
A.(5.) PFAS MONITORING REQUIREMENT AND PRETREATMENT
[G.S. 143-215.1 (b)]
(a.)In the absence of an approved 40 CFR Part 136 method published in Federal Register,effluent PFAS
monitoring shall be conducted.The 3 draft or more recent wastewater analytical method 1633(see
40 CFR 122.2 1(e)(3Xii)and 40 CFR 122.44(i)(1)(iv)(B))shall be used and shall include all target
analytes listed under Table 1 of the method until such time as the Permittee uses the approved PFAS
Method for wastewater. Effective the first full calendar quarter following six (6) months after EPA
publishes a 40 CFR Part 136 PFAS Method for wastewater in the Federal Register, effluent PFAS
monitoring shall be conducted using the approved EPA PFAS Method 1633. See Appendix A for list of
analytes.
(b.)Effluent monitoring using the draft analytical method takes effect the first full calendar quarter
following six (6) months after the effective date of the permit(Month xx, 2024)and will be at a
quarterly frequency thereafter.
Appendix A has been added to the permit to identify the current analytes listed under Table 1 of
Method 1633 Analysis of Per-and Polyfluoroalkyl Substances(PFAS)in Aqueous,Solid,Biosolids,
and Tissue Samples by LC-MS/MS (EPA, January 2024)and the appropriate ICIS codes for use
when reporting in the electronic Discharge Monitoring Reports (eDMRs).The method and list of
analytes may also be found at:
https://www.epa.gov/system/files/documents/2024-0 1/method-1 63 3-final-for-web-p o sting.pd f
PFAS Monitoring using the Draft Method or January 2024 Method 1633 shall be reported quarterly
using the Division-provided submittal form. Once PFAS monitoring is conducted using the EPA
Method 1633 in 40 CFR Part 136, data shall be reported in the monthly eDMRs.
Please note that specific considerations and protocols are required to avoid cross-contamination and
minimize sample bias for PFAS.A current listing of laboratories accredited by the Perry Johnson
LaboratoryAccreditation,Inc.(PJLA),ANSI National Accreditation Board(ANAB),or the American
Association for Laboratory Accreditation(A2LA)to perform EPA Method 1633 can be found by
contacting the individual associations.Please note that different labs are accredited for different
matrices.
Sampling and Analytical Notes:
• Sampling shall be planned so that required holding times for analytical methods are met.
•Using one of the analytical laboratories included above will allow consistency in analytical method
and in anticipation of a final method.
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• "J" flag values shall be reported when the"J"flag value is associated with the method's upper
bound."J"flag values need not be reported when less than the method's Minimum Reporting Level
(listed in Method 1633).
• Laboratories approved for Aqueous matrix may be utilized. Please note that the lab used does not
have to be in North Carolina.
(c.)Pretreatment program activities:
(i.) PFAS Monitoring Applicability: Industry categories known or suspected to discharge PFAS
from the EPA PFAS Strategic Roadmap include:organic chemicals,plastics&synthetic fibers
(OCPSF); metal finishing; electroplating; electric and electronic components; landfills;pulp,
paper&paperboard;leather tanning&finishing;plastics molding&forming;textile mills;paint
formulating, and airports.This is not an exhaustive list and additional industries may also
discharge PFAS. For example, Centralized Waste Treatment(CWT) facilities may receive
wastes from the aforementioned industries and should be considered for monitoring.There may
also be categories of dischargers that do not meet the applicability criteria of any existing
Effluent Limitation Guidelines(ELG);for instance,remediation sites,chemical manufacturing
not covered by OCPSF, and military bases.'
'ELG categories of airport deicing,landfills,textile mills,and plastics molding and forming do not
have categorical pretreatment standards, and therefore small-volume indirect dischargers in those
categories would not ordinarily be considered Significant Industrial Users (SIUs) and may not be
captured on an existing IU inventory.IUs under the Paint Formulating category are only subject to
Pretreatment Standards for New Sources(PSNS), and existing sources may need to be inventoried.
(ii.) The Permittee shall identify and locate each Significant Industrial User(SIU)in the approved
pretreatment program in industry categories expected or suspected of PFAS discharges to the
First Broad River WWTP;and begin sampling of and modify Industrial User Permits(IUPs)for
each SIU identified as suspected of PFAS discharges to the First Broad River WWTP to ensure
sampling begins within six months of the permit effective date, by Month xx, 2024.
(iii.) Update Industrial Waste Survey(IWS)Inventory:POTWs must identify and locate all possible
indirect dischargers that might be subject to the pretreatment program and identify the character
and volume of pollutants contributed to the POTW by the indirect dischargers (see 40 CPR
403.8(0(2)).As EPA regulations require,this information shall be provided to the Division(see
40 CFR 122.44(j)and 40 CFR 403.8(f)(6))as part of the 2024 Pretreatment Annual Report
(PAR).The IWS inventory shall be revised,as necessary,to include all indirect dischargers in
industry categories expected or suspected of PFAS discharges.'. (see 15A NCAC 02H
.0906(b)(2)).
(iv.) The Permittee shall begin sampling of and/or issue IUPs for each indirect discharger identified
as suspected of PFAS discharges to the First Broad River WWTP to ensure sampling begins
within six months of completion of the IWS.
(v.) The Division has determined that all SIUs and indirect dischargers identified above analyze their
discharge for PFAS at the same quarterly sampling frequency and with the same analytical
method to ensure protection of human health and the environment due to the potential health
hazards associated with PFAS.Collection and evaluation of this information will also assist the
Department in developing sound policies with respect to PFAS in the environment.
(vi.) The Permittee shall ensure that IUPs within the First Broad River WWTP service area are
modified or reissued,new IUPs are issued,and other Pretreatment Program mechanisms are
completed to address PFAS discharges to POTWs.
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Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
(vii.) In the absence of local limits, and based upon data as they become available, POTWs shall
encourage Best Management Practices(BMPs),pollution prevention,product substitution,and
good housekeeping practices to make meaningful reductions in PFAS introduced to POTWs.
Such BMPs could be like those included in the EPA Office of Water, December 5, 2022,
"Addressing PFAS Discharges in NPDES Permits and Through the Pretreatment Program and
Monitoring Programs." A3. "Best Management Practices(BMPs) for discharges of PFAS,
including product substitution,reduction,or elimination of PFAS,as detected by draft method
1633".
(viii.)A summary of all actions taken by the Permittee and their industries and monitoring conducted
by each indirect discharger identified as part of this Special Condition shall be provided as part
of the PAR(see 15ANCAC 02H .0908(b)).
A.(6.) ELECTRONIC REPORTING- DISCHARGE 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)j
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 monthly 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
ATTENTION: Central Files
1617 Mail Service Center
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Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
Raleigh, North Carolina 27699-1617
See "How to Request a Waiver from Electronic Reporting" section below.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
reported via the eDMR system no later than the last calendar day of the month following the
completed reporting period. 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; and
• 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
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Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
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. Signatory 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 cert1, 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 ofmy knowledge and belief true, accurate, and complete. I am
aware that there are significant penalties for submittingfalse information,including the possibility of
fines 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 fora 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].
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Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
fJ ,.' .'�' • ,,. {_-, • - T.,.-..� //
. i .q) :JO) ` 'x 4•, a '.� /, .;
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City of Shelby WWTP — NC0024538 Facility
Location •
USGS Quad Name: Blacksburg North Lat.: 35°14'32"
Receiving Stream: First Broad River Long.: 81°34'31" -fir•
Stream Class: C North Broad -030804 Not to SCALE
Page 14 of 17

Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
Appendix A. PFAS Target Analytes EPA Method 1633
(EPA, January 2024)
Parameter
Target Analvte Name Abbreviation CAS Number 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
Perfhiorododecanoic acid PFDoA 307-55-1 51629
Perfluorotridecanoic acid PFTrDA 72629-94-8 51630
Perfhiorotetradecanoic acid PFTeDA 376-06-7 51531
Perfluoroalkyl sulfonic acids
Perfluorobutanesulfonic acid PFBS 375-73-5 52602
Perfluoropentanesulfonic acid PFPeS 2706-91-4 52610
Pertluorohexanesulfonic 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
Page 15 of 17

Docusign Envelope ID:38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
1H,1H,2H,2H-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
Table continues on next page.
Table continued fromAppendix A. PFAS Target Analytes EPA Method 1633 (EPA, January 2024).
Target Analvte 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 Polvfluorother carboxylic acids
Hexafluoropropylene oxide dimer acid HFPO-DA 13252-13-6 52612
4,8-Dioxa-3H-perfhiorononanoic 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 lICI-PF3OUdS 763051-92-9 PF004
Perfluoro(2-ethoxyethane)sulfonic acid PFEESA 113507-82-7 52629
Fluorotelomer carboxylic acids
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Docusign Envelope ID: 38B4E322-712E-4E56-BB13-2AD9726BBC24
Permit NC0024538
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 17 of 17