NC0055786_Draft Permit_20250318

Docusi n Envelope ID: 93D564FA4C8D-40CC-8D22-ADD034AEBCdF
JOSH STEIN
C~no,
D. REID WILSON
$M7efat)
RICHARD E. ROGERS. JR.
DPrr rry
NORTH CAROLINA
EnHron tat Quelhry
March 18, 2025
City of Lexington
Attn: Tom Johnson, Water Resources Director
101 Plaza Pkwy
Lexington, North Carolina 27292
Subject:
Dear Mr. Johnson:
Draft NPDES Permit Renewal
Permit NCO055786
Lexington Regional W WTP
Davidson County
Grade IV Biological WPCS
SIC Code 4952
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:
• To aid in calculating Total Phosphorus (TP) loads, Total Monthly Flow has been added to the permit,
and seasonal TP Load monitoring has been increased to monthly [See A.(l.)].
• Based on the reasonable potential analysis (RPA) showing no reasonable potential to violate state water
quality standards, limits and monitoring for Bromodichloromethane and the monitoring requirement
for Total Lead have been removed from the permit [See A.(I.)].
• Based on the RPA showing reasonable potential to violate state water quality standards, Chlorinated
Phenols and Total Cyanide limits have been added to the permit and the quarterly monitoring
requirement has been changed to monthly monitoring [See A.(L)].
• Based on the RPA predicting a maximum effluent Total Cadmium and Total Silver concentrations that
is each greater than half of their respective allowable discharge concentrations based on state water
quality standards, limits have been removed and monitoring was reduced from monthly to quarterly
[See A.(1.)].
• To provide an opportunity for the City to develop a plan to assess sources of Chlorinated Phenols and
Total Cyanide in order to come in compliance with the limits in Section A.(l.), a 3-year schedule of
compliance has been added to the permit [See Special Condition A.(6.) Schedule of Compliance for
Chlorinated Phenols and Total Cyanide Limitations].
• Special Condition A.(2.) was renamed CALCULATION OF TOTAL PHOSPHORUS LOADS for
clarity and consistency with similar conditions in other NPDES permits regulating nutrient loadings.
• Based on the potential of 1,4-Dioxane passing through the W WTP system from certain industrial user
types including metal finishers, quarterly effluent monitoring for 1,4-Dioxane with option to request
reduction to quarterly after 24 months based on data review [See A.(1.)].
• To assess industrial contributions of PFAS chemicals to the Lexington Regional W WTP and assess
levels in the facility influent and effluent, Special Condition A.(9.) has been added to the permit.
D_E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
IgIllo 612 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1611
919.707 9000

Docusign Envelope ID'. 93D564FA4C8D-40CC-8D22-ADD034AEBC85
• Some of the wording has changed in Special Condition A.(3.), Chronic Toxicity Permit Limit, please
review each paragraph carefully.
• Special Condition A.(4.) has been modified to include the specific three years in which the Effluent
Pollutant Scan shall be performed (2027, 2028, and 2029).
• 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.
• Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and
program reports. The requirement to continue reporting discharge monitoring data electronically using
the NC DWR's Electronic Discharge Monitoring Report (eDMR) internet application has been added
to your NPDES permit [See Special Condition A.(10.)].
• The map was revised to show instream monitoring locations.
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 httns://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 Davidson 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].
Sincerelv.
Docuslanetl by: jj((� .�-�
EQnFBBCP2D*U fLr
Gary Perlmutter, Environmental Specialist II
NPDES Municipal Permitting Unit
Hardcopy: NPDES Files
eCopy: US EPA Region 4
DWR / Winston Salem Regional Office / Water Quality / Lon Snider & Jenny Graznak
DWR / Operator Certification Program/Jeff Talbot
DWR / Ecosystems Branch/David Hill
DWR / Aquatic Toxicology Branch / Cindy Moore & Molly Nicholson
DWR / Municipal Permitting Unit / Keyes McGee
DWR/Winston Salem Regional Office / Public Water Supply / Eric Hudson
City of Lexington / Will Hodges (ORC)
D_E Q�� North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1617 Mail Service Carrier I Raleigh, North Carolina 27699-1611
���w`� 919 707 9000

Docusign Envelope ID: 930554FA4CBD40CC-8D22-ADD034AEBC85
Permit NC0055786
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 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
City of Lexington
is hereby authorized to discharge wastewater from, afacility located at the
Lexington Regional Wastewater Treatment Plant
506 Glendale Road,
Lexington, North Carolina
Davidson.County
to receiving waters designated as the.Abbotts Creek in the Yadkin -Pee Dee'River Basin in accordance with the
effluent limitations, monitoring requirements, and other -applicable conditions set forth in Parts I, 11, III, and IV
hereof.
This permit shall become effective Month 01,.2025.
This permit and authorization to discharge shall expire at midnight on April 30, 2030.
Signed this day Month dd, 2025.
DRAFT
Karen Preston, Municipal Permitting Unit Supervisor
Division of Water Resources
Page 1 of 17

Docusign Envelope ID: 93D564FA-4C8D-40CC-8D22-ADD034AEBC85
Permit NC0055786
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 Lexington
is hereby authorized to:
1. Continue to operate and maintain the Lexington Regional WWTP, an existing 6.5 MGD facility consisting of
the following components: ?
• Two influent pump stations,
2.
• Influent flow measurement and recording,
• A fine bar screen,
• Grit separator,
• Two primary clarifiers (not in use),
• Biological nutrient removal (BNR) system,
• Two final clarifiers, �\
• Two polishing ponds,
• Chlorine contact chamber,
Abbotts
ition specified on the attached map via Outfall 001 into the
Yadkin -Pee Dee River Basin and 03040103 HUC.
Page 2 of 17

Docusign Envelope ID: 93D564FA-4C8D-40CC-8D22-ADD034AEBC85
Permit NC0055786
PART
A.(9.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [6.5 MGD]
[I5A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.]
Grade IV Biological Water Pollution Control System [I5A 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
discharees shall be limited and monitored[ by the Permittee as specified below:
PARAMETER
Parameter Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample.
Ldcation2
Flow 50050
6.5
,! ''•
Continuous
Recording
I or E
Total Monthly Flow (MG) 82220
Monitor and Report % j `
Monthly
Calculated
E
BOD, 5-day, 200C3 C0310
(Apr 1 - Oct 31)
5.0 mg/L
7.5 mg/L
'� ,
Daily
Composite
I and E
BOD, 5-day, 20°C3 C0310
(Nov I -Mar 31)
10.0 mg/L
15.0 nn
�,
Daily
Composite
I and E
Total Suspended Solids (TSS) 3 C0530
30.0 mg/L
45.0m9/L
Daily
Composite
I and E
Ammonia (NH3 as N)
(Apr 1 - Oct 31) C0610
1.0 mg/L
3.0 mg/L�
Datly\
Composite
E
Ammonia (NH3 as N)
C0610
(Nov 1 -Mar 31)
2.O�mg/L\
6.0 mg/�
��
\� 1,
Daily
\Composite
E
Fecal Coliforrn
31616
(geometric mean)
��
200/100 mL�
�-
400/100 mL
Daily
Grab
E
Dissolved Oxygen 00300
Dai]'y�Aveiage>6:0 mg/L
Daily
Grab
E
PH �00400—.
Between,6.b�and 9.0 Stan a`rd.U_ nits
�, Daily
Grab
E
Temperature (°C) % 60010.,
''� Mbn_ itor and.Report�, '
`'' Daily
Grab
E
Total Residual Chlorine (TRC); (30060
�� -�
�� if
28 µWo
Daily
Grab
E
Conductivity (µmhos/cm) 00094
} } Monitorkand Report
Daily
Grab
E
TKN (mg/L) '00615,
1--,Monitor and Report
Monthly
Composite
E
NO3-N+NO2-N,(m'g/L) 00630
,--eMonitorand•Report
Monthly
Composite
E
Total Nitrogen 5 (mg/L)—"' NC0600�
Monitor and Report
Monthly
Calculated
E
Total Phosphorus (mgJL) �C0665
�� Monitoi and•Report
Weekly
Composite
E
TP Load 6 �� Qmgo0
(Apr I - Oct 31) QS600
\Monitor and Report (lb/month)
\ \.4910 lb/season
Monthly
Seasonally
Calculated
E
TP Load 6 QM600\
(Nov l - Mar 31) QS600
Monitor and Report (lb/month)
} 1 6930 lb/season
Monthly
Seasonally
Calculated
E
Total Cadmium (µg/L) 01027
I { Monitor and Report
Quarterly
Composite
E
Chlorinated Phenols 7 340301
3.8 µg/L
Monthly
Grab
E
Total Cyanide 7•8 b1157�
8.3 µg/L
34.2 µg/L
Monthly
Grab
E
Total Silver (PQL < I µg/L) 01097
Monitor and Report
Quarterly
Composite
E
Total Hardness (CaCO3) s 00900
(mg/L)
Monitor and Report
Quarterly
Composite
E
1,4-Dioxane (µg/L) 88238
Monitor and Report
Quarterly
Grab
E
PFAS (ng/L) 10 various
Monitor and Report
Footnote 10
Chronic Toxicity 11 TGP3B
Monitor and Report
Quarterly
Composite
E
Effluent Pollutant Scan 12 NCOJ
Monitor and Report
Footnote 12
Footnote 12
E
Total Hardness (CaCO3) 9 00900
(m9fL)
Monitor and Report
Quarterly
Grab
U
Dissolved Oxygen (mg/L) 00300
Monitor and Report
Variable z
Grab
U and D
Page 3 of 17

Docusign Envelope ID: 93D564FA-4C8D-40CC-8D22-ADD034AEBC85
Permit NC0055786
Temperature °C 00010
Monitor and Report
Variable 2
Grab
Uand D
Conductivity (µmhos/cm) 00099
Monitor and Report
Variable'
Grab
U and D
Fecal Coliform (4/100nnL)
31616
(geometric mean)
Monitor and Report
Variable ]
Grab
U and D
Footnotes:
1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system.
See Special Condition A.(10.).
2. Sample locations I = Influent; E = Effluent; U = Upstream at I-85; D = Downstream at NC-47. Upstream and downstream
samples shall be grab samples collected 3/week during June, July, August, and September and 1/week during the remainder
of the year. Instream sampling requirements are provisionally waived in light of the Permittee's Participation in the Yadkin -
Pee Dee River Basin Association. Should participation in the association cease, all instream sampling requirements are
immediately reinstated.
3. The monthly average effluent BOD5 and TSS 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
residua] chlorine values reported below 50 µg/L to be in compliance with^the permit. However, the Permittee shall continue
to record and submit all values reported by a North Carolina certified laborat \(\luding field certified), even if these
values fall below 50 µg/L.
5. For a given wastewater sample, TN = TKN + 1`
Nitrogen, and NOs-N and NOr-N are Nitrate and
6. TP Load is the mass load of TP discharged by the
7. The Permittee shall achieve compliance wit
shall follow the Chlorinated Phenols and To
on the effective date of this permit, the Perm
Phenols and Total Cyanide.
8. Due to difficulties quantifying cyanide in a
µg/L to be "compliant" with the permit. H
Carolina -certified test method (ev&Nf vale
when calculating averages, f any,—as,require
9. The Permittee shall sample instream hardne
the hardness in the stream Effluent hardtess
(e.g., cadmium, copper, lead, nickel, silver,
10. See Special Conditi6n•A.(9.).
11. Chronic Toxicity-(Ceriodophnia dubia)<Pa
SpeciallCondition A.(3.).
12. The Permittee shall perform
There shall be no discharge
these
be
scans
NOz-N, where TN is Total`Nitrogen, TKN is Total Kjeldahl
itr`gen, respectively. `�
\ma period o�time. See Special Condition A.(2.).
ions within three years of the effective date of this permit and
npliance schedule detailed in Special'Condition A.(6.). Starting
arm month\ \ ent Monitoring and Reporting for Chorinated
atrix, the Division•shall consider all values reported below 10
:rmittee,shall submrt•to DWR all values reported by a North
10 µg/L),'and the Permittee shall consider all reported values
acility's discharge. The sample shall be representative of
in conjunction with testing for hardness dependent metals
in February, May, August and November. See
the term of this permit. See Special Condition A.(4.).
or visible foam in other than trace amounts.
Page 4 of 17

Docusign Envelope ID: 93D564FA-4C8D-40CC-8D22-ADD034AEBC85
Permit NC0055786
A.(2.) CALCULATION OF TOTAL PHOSPHORUS LOADS
[NCGS 143-215.1(b)]
The Permittee shall calculate the seasonal mass loadings of Total Phosphorus (TP) as the sum of monthly loadings
according to the following equations:
(a.) Monthly Mass Loading (pounds / month) = TP x TMF x 8.34
where:
TP = the average Total Phosphorus concentration (mg/L) of the composite
samples collected during the month;
TMF = the Total Monthly Flow of wastewater discharged during the month
(MG/mo); and
8.34 = conversion factor, from (mg/L x MG) to pounds
(b.) Seasonal TP Load (lb/season) = Sum of the monthly TP Loads for the season.
The Permittee shall report monthly Total Phosphorus results (mg/L and Ib/mo) in the appropriate discharge
monitoring report for each month and shall report each calendar year's results (lb/yr) with the December report for
that year.
A.(3.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
[15A NCAC 02B .02001 [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 60%.
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 I1 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 THP311 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].
Page 5 of 17

Docusign Envelope ID: 93D564FA-4C8D-40CC-BD22-ADD034AESC85
Permit NC0055786
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. l /
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 tliirdmonth. �\
Should any test data from this monitoring requirement or tests,performeid,,by the North Carolina Division of Water
Resources indicate potential impacts to the receiving streami�this•perin may be re -opened and modified to include
alternate monitoring requirements or limits \ 1
NOTE: Failure to achieve test conditions a\ fi�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 becompleted,no later than the last day of the month
following the month of the initial -monitoring. �, V
A.(4.)
OF COMPLIANCE
When pursuant to, this permit aNpollutant'analysis is conducted using an approved analytical protocol with a
sufficiently sensitive,minimum defection level and a result of "non -detectable" or "below quantitation limit' is
obtained, the Permittee shall record that result as reported. For the purpose of determining compliance with a permit
limit for the pollutant the numerical value of that individual analytical result shall be considered to be compliant.
Page 6 of 17

Docusign Envelope ID: 93D564FA-4CBD-40CC-8D22-ADD034AEBC85
Permit NC0055786
A.(5.) ADDITIONAL MONITORING REQUIREMENTS FOR PERMIT RENEWAL
[NCGS 143-215. 1 (b)]
(a.) Effluent Pollutant Scans. The Permittee shall perform a total of three (3) Effluent Pollutant Scans for all
parameters listed below. One scan must be performed in each of the following years: 2027, 2028, and
2029. 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.(3.) CHRONIC
TOXICITY PERMIT LIMIT], 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-dichloroeth lens
( ) Y 34501 ,. Bis (2•chloroisopropyl)ether 34283
Dissolved oxygen 00300 1,2-dichlompropme C05,41 Bis (2-ethylhexyl) phthalate C0100
Nitrate / Nitrite 00630 1,3-dichloropropylene 77163 4-bromopbenyl phenyl ether 34636
Kjeldahl nitrogen 00625 Ethylbenzene j 3 3Z1 Butyl benzyl phthalate 34292
Oil and grease 005S6 Methyl bromide �� 34413\ 2, chloronaphthalene 3458/
Phosphorus C0665 Methyl chloride / 34418 \chlor phenyl phenyl ether 34641
Total dissolved solids 70295 Methylene chloride 34423 Crirysene 34320
Hardness 00900 1,1,2,2-tetrachloroethme 81549 Di-n-butyl Phthalate 39110
Antimony 01097 Tetmchloroethylene /34475 Di-n-octyl phthalate 34596
Arsenic 01002 Toluene ✓ 334010 Di enzo(a,h)antb scene 34556
Beryllium 01012 1,hl-tri hloroethane (34506 1,2-dichloroben ne 34536
Cadmium 01027 1,1,2-trichloroediane 34511 1,3-dichlorobenzene 34566
Chromium C0034 Trlchloroethyl nee 39180 1,4-dichlorobenzene 34571
Copper 0/042 Vinyl chl nde\ �\ 39 75\.3-dichlorobenzidine 34631
Lead 0lO51 Acid-extradable rnmpounds: \ Diethyl phthalate 34336
Mercury (Method 163IE) (COME P1 chloro-m-cresol �qq` q52� Dimethyl phthalate 34341
R \
Nickel \ 0 067 2-chlorophenol \ 34586 2,4-dinitrotoluene 34611
Selenium \01147 2,4-dichlorophmet \ 34601 2,6-dinitrotoluene C0626
Silver 0%077� 2j-dimephe`I 34606 1,2-diphenyWydrazine 34346
Thallium 0l059 4,6-dinitro-e•cresol 34657 Fluoranthene C0376
Zinc ` 01092 \2 4 dinitrophenool 34616 Fluorene 34381
Cyanide \� �007720` 2nit\phenol 34591 Hexachlorobenzene C0700
Total phenolic compounds` 32730 \4-nitrophenol 34646 Hexachlorobutadiene C0701
Volatile orennic compounds:\ Pentachlorophenol 39032 Hexachlorocyclo-pentadiene 34386
Acrolein\ 34210 Phenol 34694 Hexachloroethane 34396
Acrylonitrile \\ 34215 2�4,6-trichlorophenol 34621 Indeno(1,2,3-ed)pyrene 34403
Benzene 34030 Base neutral compounds: Isophorone 34408
Bromoform \3210 Acemphthene 34205 Naphthalene 34696
Carbon tetrachloride 32102 Acmaphthylene 34200 Nitrobenzene 34447
Chlorobenzene 34301 Anthracene CO220 N-nitrosodi-n-propylamine 34428
Chlorodibromomethane 34306 Benzidine 39120 N-nitrosodimethylamine 34438
Chlomethene 85811 Benzo(a)mthmcene C0526 N-nitrosodiphenylamine 34433
2-chloroethyl vinyl ether 34576 Benzo(a)pyrene 34247 Phenmthrene 34461
Chloroform 32106 3,4 benzofluoranthene 34230 Pyrene 34469
Dichlorobromomethane 32101 Benzo(ghi)perylene 34521 1,2,4-trichlorobenzene C0551
1,1.dichloroethme 34496 Benzo(k)fluormthene 34242
1,2-dichloroethme 32103 Bis (2-chloroethoxy) methane 34278
Page 7 of 17

Docusign Envelope ID: 93D564FA-4C8D-00CC-8D22-ADD034AEBC85
Permit NC0055786
(b.) Effluent Scan Reporting. Test results shall be reported electronically via eDMR by December 31 ' 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 "I" or "Y" for parameter code NCO - 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:Hedocs.deg.nc.pov/Forms/NPDES W W-EDMR-Supplemental-Form
(c.) 2°" Species Toxicity Testing and Reporting.
(i.) In addition to the quarterly toxicity tests required in Condition A.(3.) CHRONIC TOXICITY PERMIT
LIMIT, 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 T' 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 2"" species test shall coincide with the quarterly samples collected for chronic toxicity
permit limit, 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 2"" 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, ATForms.ATBna dea.nc.gov.
(iv.) Results of the 2" 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 Pernittee may contact the Division's Aquatic Toxicology Branch at 919-743-8401 for guidance on
conducting the additional toxicity tests and reporting the results.
Page 8 of 17

Docusign Envelope ID: 93D564FA-4CBD-40CC-BD22-ADD034AEBC85
Permit NC0055786
A.(6.) SCHEDULE OF COMPLIANCE FOR CHLORINATED PHENOLS AND TOTAL CYANIDE
LIMITS (3 YR)
[NCGS 143-215.1 (b)]
(a.) Within one year of the permit effective date, the Permittee shall submit to the Division a Corrective Action
Plan (CAP) for Division approval, summarizing the strategy or actions to be taken to achieve compliance
with the Chlorinated Phenols and Total Cyanide limitations listed in Section A. (L). This plan will include
specific dates for completion or implementation of each action.
(b.) Within two years of the permit effective date, the Permittee shall submit to the Division a summary of actions
taken towards achieving compliance with the Chlorinated Phenols and Total Cyanide limitations specified in
Section A. (L).
(c.) Withing three years of the permit effective date, the Permittee shall achieve compliance with Chlorinated
Phenols and Total Cyanide limitations specified in Section A. (1)
(d.) Upon approval of the Corrective Action Plan (CAP) by the Division�the report, actions, and implementation
dates become an enforceable part of this permit. Any modifications to the schedule shall be requested to the
Division at least ninety (90) days before the deadline. Modifications the schedule more than four months
will be subject to public notice. �/ )) \
(e.) Annual summaries and the CAP shall include the�o �er's name, NPDES,p rmit number, and a Permittee
contact person and shall be submitted to: f/,� V \
NCDEQ / Division of Water Resources
NPDES Permitting
1617 Mail Service Center
Raleigh, NC 27699-1617
A.(7.) NUTRIENT F
[NCGS 143-21
This permit maybe -reopened and'm6dified to.in
TMDL and/or nutrient -ma an Bement strategy for
A.(8.)
[NCGS
Resources
Hanes Mill Road
ialem, NC 27105
requirements in accordance with any future
The Permittee shall maintain and•continue to implement the Mercury Minimization Plan (MMP) developed in
the previous permit term. The MMP shall continue to be available for inspection on -site. 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 MMP 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.
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Docusign Envelope ID'. 93D584FA-4C8D-00CC-8D22-ADD034AEBC85
Permit NC0055786
A.(9.) PFAS MONITORING REQUIREMENT AND PRETREATMENT
[NCGS 143-215.1 (b)]
(a.) In the absence of an approved 40 CFR Part 136 method published in Federal Register, influent and
effluent PFAS monitoring shall be conducted. The 3n1 draft or more recent wastewater analytical
method 1633 (see 40 CFR 122.21(e)(3)(ii) and 40 CFR 122.44(i)(1)(iv)(B)), including EPA -approved
revisions, 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 HAS 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, influent and effluent PFAS monitoring shall be conducted using
the approved EPA PFAS Method 1633, Revision A (1633A). See Appendix A for list of analytes.
(b.) Influent and 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, 2025)
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
1633A Analysis of Per- and Polyfluoroalkyl Substances (PFAS) in Aqueous, Solid, Biosolids, and
Tissue Samples by LC-MS/MS (EPA, December 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.eim.gov/system/files/documents/2024-12/method-1633a-december-5-2024-508-
compliant.pdf
HAS Monitoring shall be reported quarterly using the Division -provided submittal form. Once HAS
monitoring is conducted using the EPA Method 1633A 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
Laboratory Accreditation, Inc. (PJLA), ANSI National Accreditation Board (ANAB), or the American
Association for Laboratory Accreditation (A2LA) to perform EPA Method 1633/1633A 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.
• "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 1633/1633A).
• 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
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Docusign Envelope ID: 930564FA-4C8D-40CC-8D22-ADD034AEBC85
Permit NC0055786
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
Template W WTP; and begin sampling of and modify Industrial User Permits (IUPs) for each SIU
identified as suspected of PFAS discharges to the Template W WTP to ensure sampling begins
within six months of the permit effective date, by Month xx, 2025.
(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 CFR
403.8(f)(2)). As EPA regulations require, this information shall be provided to the Division (see
40 CFR 122.440) and 40 CFR 403.8(f)(6)) as part of the 2025 Pretreatment Annual Report
(PAR). The IWS inventory shall be revised, as necessary, to include all indirect dischargers in
industry categories expected or suspected of HAS 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 Template W WTP 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 HAS in the environment.
(vi.) The Permittee shall ensure that IUPs within the Template WWTP service area are modified or
reissued, new IUPs are issued, and other Pretreatment Program mechanisms are completed to
address PFAS discharges to POTWs.
(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 HAS 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 15A NCAC 02H .0908(b)).
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Docusign Envelope ID: 93D564FA-4C8D-40CC-8D22-ADD034AEBC85
Permit NC0055786
A.(10.) ELECTRONIC REPORTING - DISCHARGE MONITORING REPORTS
[NCGS 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.)
• Section D. (2.)
• Section D. (6.)
• Section E. (5.)
Signatory Requirements
Reporting
Records Retention
Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (all
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.ne.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
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).
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Docusign Envelope ID: 93D564FA-4C8D40CC-8D22-ADD034AEBC85
Permit NC0055786
2. Electronic Submissions
In accordance with 40 CFR 122.41(I)(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:
hhtt s://www.federalrepister.pov/documentsl2Ol5l1012212015-24954/national-pollutant-discharge-
elimination-s, st�pdes-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:
hM:Hde(i.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)l
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II, Section
B. (I 1.)(a) or by a duly authorized representative of that person as described in Part II, Section B. (I I.)(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:
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Docusign Envelope ID: 93D564FA-4CBD-40CC-BD22-ADD034AEBC85
Permit NC0055786
"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.)l
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].
Page 14 of 17

Docusign Envelope ID: 93D564FA-4CSD-00C"D22-ADD034AEBC85
Permit NCO055786
Appendix A. PFAS Target Analytes EPA Method 1633A
(EPA, December 2024)
Target Analyte Name
Abbreviation
CAS Number
Paranrerer
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-I
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
2706-914
52610
Perfluorohexanesulfonic acid
PFHxS
355-46-4
52605
Perfluorobeptanesulfonic acid
PFHpS
375-92-8
52604
Perfluorooctancsulfonic 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
51632
Fluorotelomer sulfonic acids
1H,IH,2H,2H-Perfluorohexanesulfonic acid
4:2FTS
757124-724
52607
IH,1H,2H,2H-Perfluorooctanesulfonic 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.
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Docusign Envelope ID: 93D564FA-4C8D-40CC-8D22-ADD034AEBC85
Permit NC0055786
Table continued from Appendix A. PFAS Target Analytes EPA Method 1633A (December 2024).
TargetAnalyte 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 perfluorooctanesulfonamidoethmol
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
919005-144
52636
Perlluoro-3-methoxypropanoic acid
PFMPA
377-73-1
PF002
Perlfuoro4-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-PF30NS
756426-58-1
PF003
II-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 17 of 17