NC0003450_Draft Permit_20230725

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
July 25, 2023
Ms. Lisa Cottle, WWTP ORC/Pretreatment
Town of Wallace
316 E. Murray Street
Wallace, North Carolina 28466
Subject: Draft NPDES Permit Renewal
Permit NC0003450
Wallace Regional WWTP
Duplin County
Grade IV Biological WPCS
SIC Code 4952
Dear Ms. Cottle:
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:
For clarity, the instream monitoring requirements have been relocated from Section A.(l .)
to Special Condition A.(2.) Instream Monitoring Requirements.
• Per discussions with the Permittee, the instream monitoring locations have been revised to
improve safety and representation [See A.(2.)].
Per discussion with the Division's Basin Planning Branch, monthly instream monitoring
for fecal coliform, TKN, NO2+NO3 and TP has been added to the permit [See A.(2.)].
• Total Residual Chlorine (TRC) limits and monitoring requirement have not been in the
permit, as the facility uses UV for disinfection. However, in the event of an emergency where
chlorination is required as a backup or temporary means of disinfection at the facility, a TRC
limit and monitoring requirement have been added to the permit. Please note that TRC
monitoring is only required when chlorine is used at the plant, and as part of the regular
Effluent Pollutant Scans.
Based on the reasonable potential analysis (RPA) showing no reasonable potential to
violate state water quality standards, the monitoring requirement for total silver and total
cadmium has been removed from the permit [See A.(1)].
Based on the reasonable potential analysis (RPA) showing reasonable potential to violate
state water quality standards, total copper and total cyanide limits and monthly monitoring
have been added to the permit [See A.(1)].
Based on Mercury TMDL evaluation showing the annual average mercury concentration
exceeding the WQBEL on two occasions, and two individual mercury samples exceeding the
TBEL, an annual average total mercury limit and quarterly monitoring has been added to the
permit [See A.(L)].
A special condition to monitor effluent PFAS chemicals 2/year has been added to the
permit, to be effective six (6) months after EPA has a final wastewater method in 40 CFR136
method published in the Federal Register [See Special Condition A.(6.) PFAS Monitoring
Requirements].
D�A North Carolina Department of Environmental Quality I Division of Water Resources
E Q 7> 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
'����Nar 919.707.9000

Language has been added to Footnote 1 to account for influent and effluent abbreviations
[See A. (1.)].
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 (2025, 2026, and 2027). In addition, at the end of
the Special Condition, 2nd species Toxicity Testing Requirements for municipal permit
renewals per Federal Regulations [40 CFR 122.210)(5)] have been added.
• 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.
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 Duplin 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,
DocuSignned by:
C-w4
7900A4FBFCA14FD...
Nick Coco, PE
NPDES Municipal Permitting Unit
Hardcopy: NPDES Files
Ecopy: US EPA Region 4
DWR/Wilmington Regional Office/Water Quality/Morella S. King
DWR/Operator Certification Program/Maureen Kinney
DWR/Aquatic Toxicology Branch/Cindy Moore & Molly Nicholson
DWR/Basin Planning Branch/Nora Deamer & Forest Shepherd
DWR/Municipal Permitting Unit/Keyes McGee
1A North Carolina Department of Environmental Quality I Division of Water Resources
D E QJ> 512 North Salisbury Street 1 1611 Mail Service Center I Raleigh. North Carolina 27699-1611
D. � M FM �,,,��, � 919.707.9000

Permit NC0003450
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 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
Town of Wallace
is hereby authorized to discharge wastewater from a facility located at the
Wallace Regional Wastewater Treatment Plant
851 Old Wilmington Road
Wallace
Duplin County
to receiving waters designated as Rockfish Creek in the Cape Fear River Basin
in accordance with the effluent limitations, monitoring requirements, and other applicable conditions set forth in
Parts I, II, III, and IV hereof.
This permit shall become effective............ Month xx, 2023.
This permit and authorization to discharge shall expire at midnight on ......................................... January 31, 2028.
Signed this day .................. Month xx, 2023.
DRAFT
for Richard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 12

Permit NC0003450
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, 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.
Town of Wallace
is hereby authorized to:
1. Continue to operate and maintain the Wallace Regional WWTP, an existing 5.42 MGD facility consisting of
the following components:
• Spiral mechanical screen (peak flow rating of 13.6 MGD)
• Vortex grit removal system (peak flow rating of 13.6 MGD)
• Influent flow meter system
• Influent composite sampler with proportional sampling control
• Influent transfer basin with four (4) variable drive pumps and controls (capacity 13.6 MGD)
• Three (3) 1,900,000 gallon concrete Sequencing Batch Reactor (SBR) basins with fine bubble diffusers,
floating mixer, floating decanter, sludge transfer pump, and controls
• Five (5) 1,443 scfm blowers
• One (1) 2,300,000 gallon post aeration basin with floating aerator
• Two (2) tertiary disk filters (peak flow rating of 10.8 MGD)
• Two (2) UV disinfection channel unit with three (3) banks each (peak flow rating of 10.8 MGD)
• Effluent composite sampler
• Effluent basin with four (4) variable drive pumps and controls (capacity 13.6 MGD) with 6,355 ft of 24 in
diameter force main to outfall
• Effluent flow meter system with recorder
• Effluent composite sampler with proportional sampling control
• One (1) 1,900,000 gallon concrete aerobic sludge digester with three (3) floating aerators, floating
decanter, and two (2) sludge transfer pumps
• Three (3) 900 scfin blowers
• Two (2) 330,000 gallon concrete sludge thickening basins with sludge transfer pumps
• Sludge truck loading station
• 2,250 kW emergency generator with automatic transfer
• Additional emergency power connection capability at outfall
2. Discharge from said treatment works at the location specified on the attached map via Outfall 001 into
Rockfish Creek, classified C;Sw waters in the Cape Fear River Basin and 03030007 HUC.
Page 2 of 12

Permit NC0003450
PART I
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS 15.42 MGD]
[15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade IV
Biological Water Pollution Control System [I 5A 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:
PARAMETER
Parameter Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location'
Flow 50050
5.42 MGD
Continuous
Recording
1 or E
BOD, 5 day, 20°C 3
(Apr 1 -Oct 31) C0310
5.0 mg/L
7.5 mg/L
Daily
Composite
1 and E
BOD, 5 day, 20°C 3 C0310
(Nov 1 - Mar 31)
10.0 mg/L
15.0 mg/L
Daily
Composite
1 and E
Total Suspended Solids3 C0530
30.0 mg/L
45.0 mg/L
Daily
Composite
1 and E
NH3 as N (Apr 1 - Oct 31) C0610
1.0 mg/L
3.0 mg/L
Daily
Composite
E
NH3 as N (Nov 1 - Mar 31) C0610
2.0 mg/L
6.0 mg/L
Daily
Composite
E
Fecal Colitorm 31616
(geometric mean)
200/100 mL
400/100 mL
Daily
Grab
l
Dissolved Oxygen 00300
Daily Average >_ 6.0 mg/L
Daily
Grab
E
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
1
1 25 µg/L
Daily
Grab
E
Conductivity (µmhos/cm) 00094
Monitor and Report
Daily
Grab
E
Total Phosphorus (mg/L) C0665
Monitor and Report
Monthly
Composite
E
TKN (mg/L) 00625
Monitor and Report
Monthly
Composite
1
NO3-N + NO2-N (mg/L) 00630
Monitor and Report
Monthly
Composite
1
Total Nitrogen S (mg/L) C0600
Monitor and Report
Monthly
Calculated
E
Total Copper 01042
31.9 µg/L
45.2 µg/L
Monthly
Composite
E
Total Cyanide6 00720
7.5 µg/L
31.2 µg/L
Monthly
Grab
E
Total Mercury' COMER
AA 18.0 ng/L
Quarterly
Grab
!
PFAS various
Footnote 8
Footnote 8
Grab
E
Chronic Toxicity 9 TGP3B
Monitor and Report
Quarterly
Composite
E
Pollutant Scan" NCO]
Monitor and Report
Footnote 11
Footnote 11
E
Hardness" -Total as CaCO3 (mg/L) 00900
Monitor and Report
Quarterly
Composite
E
Footnotes:
1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application system.
See Special Condition A.(7.).
2. Sample locations I -Influent, E-Effluent.
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 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 laboratory (including field certified), even
if these values fall below 50 µg/l.
5. 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.
Footnotes continue on the next page.
Page 3 of 12

Permit NC0003450
Footnotes from A.(1.) Effluent Limitations and Monitoring Requirements:
6. Cyanide — The Division shall consider all cyanide values reported below 10 µg/L to be "zero' for compliance purposes.
However, Discharge Monitoring Reports (DMRs) shall record all values reported by a North Carolina -certified
laboratory (even if these values fall below 10 µg/L).
7. The Permittee shall monitor for total mercury using low-level analysis EPA method 1631E.
8. See Special Condition A.(6.).
9. Chronic Toxicity (Ceriodaphnia dubia) P/F at 67% with testing in January, April, July, and October. See Special
Condition A.(3.).
10. The permittee shall perform three effluent pollution scans during the term of this permit. See Special Condition A.(4.).
11. Effluent hardness shall be performed in conjunction with testing for hardness dependent metals (e.g. copper).
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 12

Permit NC0003450
A.(2.) INSTREAM MONITORING REQUIREMENTS
[15A NCAC 02B.0500 et seq.]
Beginning on the effective date of this permit and lasting until the expiration date, the Permittee shall perform
instream sampling upstream and downstream of Outfall 001 as specified below:
PARAMETER
Parameter Code
MONITORING REQUIREMENTS
Measurement
Frequency
Sample Type
Sample Locadon r
Dissolved Oxygen (mg/L) 00300
Variable'
Grab
Upstream, Downstream
Temperature (°C) 00010
Variable'
Grab
Upstream, Downstream
Conductivity (µmhos/cm) 00094
Variable'
Grab
Upstream, Downstream
Fecal Colitorm (#/100mL) 31616
(geometric mean)
Monthly
Grab
Upstream, Downstream
Total Phosphorus (mg/L) C0665
Monthly
Grab
Upstream, Downstream
TKN (mg/L) 00625
Monthly
Grab
Upstream, Downstream
NO3-N + NO2-N (mg/L) 00630
Monthly
Grab
Upstream, Downstream
Hardness -Total as CaCO3 (mg/L) 2 00900
Quarterly
Grab
Upstream
Footnotes:
1. Sample locations: Upstream = approximately 1.1 miles upstream of discharge at Willard Railroad Street, Downstream =
approximately 0.8 miles downstream of the discharge at the previously active NCO020702 outfall. Upstream and
downstream samples shall be grab samples collected 3/week during June, July, August, and September and I/week
during the remainder of the year.
2. The permittee shall sample instream hardness upstream of the facility's discharge. The sample shall be representative of
the hardness in the stream.
Page 5 of 12

Permit NC0003450
A.(3.) 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 67%.
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 TGP311 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].
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 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.
Page 6 of 12

Permit NC0003450
A.(4.) ADDITIONAL MONITORING REQUIREMENTS FOR PERMIT RENEWAL
[G.S. 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: 2025, 2026, and
2027. 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
34183
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 (PQL < 5 µg/L)
01012
1, 1, 1 -trichloroethane
34506
1,2-dichlorobenzene
34536
Cadmium (PQL < 0.5 µg(L)
01027
1,1,2-trichloroethane
34511
1,3-dichlorobenzene
34566
Chromium
C0034
Trichloroethylene
39180
1,4-dichlorobenzene
34571
Copper
01041
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 (PQL < 1 µg/L)
01147
2,4-dichlorophenol
34601
2,6-dinitrotoluene
C0626
Silver (PQL < 1 µg/L)
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
00720
2-nitrophenol
34591
Hexachlorobenzene
C0700
Total phenolic compounds
32730
4-nitrophenol
34646
Hexachlorobutadiene
C0702
Volatile orvanic 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
34105
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
34147
Phenanthrene
34461
Chloroform
32106
3,4 benzofluoranthene
34230
Pyrene
34469
Dichlorobromomethane
32101
Benzo(ghi)perylene
34521
1,2,4-trichlorobenzene
C0551
1, 1 -dichloroethane
34496
Benzo(k)fluoranthene
34242
1,2-dichloroethane
32103
Bis (2-chloroethoxy) methane
34278
(b.) 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
Page 7 of 12

Permit NC0003450
reported on DWR Form DMR-PPA-1 or other form approved by the Director. The pemuttee must at least
report completion of the test in the eDMR system by entering "1" 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://edocs.deq.nc.gov/Fomis/NPDES—WW-EDMR-Supplemental-Form
(c.) 2"-Species Toxicity Testing and Reporting.
(i.) In addition to the quarterly toxicity tests required in Condition A.(2.) (CHRONIC TOXICITY
PERMIT LIMIT (QUARTERL19), 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 TOXICITYPERMITLIMIT (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 2nd 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.
Page 8of12

Permit NC0003450
A.(5.) MERCURY MINIMIZATION PLAN (MMP)
[N.C.G.S. 143-215.1 (B)]
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.
A.(6.) PFAS MONITORING REQUIREMENT
[G.S. 143-215.1(b.)]
This reporting requirement for the per- and polyfluoroalkyl substances (PFAS) parameters listed under Table 1 of
the Final Method 1633 takes effect the first full calendar quarter following six (6) months after EPA publishes a 40
CFR part 136 Final PFAS Method for wastewater in the Federal Register. Monitoring will be at a 2/year frequency.
Find the current parameters listed under Table 1 of the 3`d Draft Method 1633 Analysis of Per- and Polyfluoroalkyl
Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS/MS at:
https://www. epa. gov/system/files/documents/2022-
12/3rd%20Draft%20Method%20163 3%20December%202022%2012-20-22_508.pdf
A.(7.) 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.)
• Section D. (6.)
• Section E. (5.)
Reporting
Records Retention
Monitoring Reports
1. Reportin¢ 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
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:
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Permit NC0003450
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 pennittee 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-
systeim-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 pennittee may seek a temporary electronic reporting waiver from the Division. To obtain an electronic
reporting waiver, a pennittee 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 pennittee re -applies for and is granted a new temporary electronic reporting waiver by the
Division. Approved electronic reporting waivers are not transferrable. Only pennittees with an approved
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Permit NC0003450
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. Sienatory Reguirements [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 I1, Section
B. (I I.)(a) or by a duly authorized representative of that person as described in Part 11, Section B. (I 1.)(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 infonnation 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 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 ].
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Permit NC0003450
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Page 12 of 12
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