NC0046728_Permit (Issuance)_20240910

Docusign Envelope ID: 188222C0-301F-47FD-8863-76D2D1226699
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ROY COOPER / l n
Governor
ELIZABETH S.BISER
Secretory �� "�#
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
September 10, 2024
Mr. James Levis, Plant Manager
Town of Mooresville
PO Box 878
Mooresville,North Carolina 28115
Subject: Final NPDES Permit Renewal
Permit NC0046728
Rocky River WWTP
Iredell County
Grade IV Biological WPCS
SIC Code 4952
Dear Mr. Levis:
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement between
North Carolina and the U.S. Environmental Protection Agency dated October 15,2007(or as subsequently
amended).
Please note that the receiving stream is listed as impaired for Benthos on the North Carolina 2022 303(d)
Impaired Waters List. Addressing impaired waters is a high priority with the Division, and instream data
will continue to be evaluated. If there is noncompliance with permitted effluent limits and stream
impairment can be attributed to your facility, then mitigative measures may be required.
No changes were made to the draft permit sent to you on July 23, 2024.The final permit maintains
the following significant changes identified in the letter sent on July 23,2024:
• The system component list was updated with the addition of a low hump sludge dryer and two 1-
MG package plant aerators with clarifiers based on correspondence with the facility's ORC (see
Supplement to Cover Sheet).
• Based on the reasonable potential analysis (RPA) predicting a maximum effluent copper
concentration that is greater than half of the allowable discharge concentration based on state water
quality standards, limits for Total Copper have been removed and monitoring has been reduced
from monthly to quarterly [See A.(1.)].
• Based on the RPA finding a reasonable potential to exceed stream water quality standards for
phenols with a limited dataset (n < 8 samples) with no values greater than the allowable
concentration, quarterly monitoring for Total Phenols has been added to the permit[See A.(1.)].
• Based on the facility receiving industrial wastewater through a pretreatment program, effluent
Conductivity monitoring was added to the permit at a daily frequency [See A.(1.)].
• Based on DWR Instream Conductivity Monitoring Guidance, the facility discharges treated
domestic and industrial wastewater,instream conductivity monitoring has been added to the permit
[See A.(1.)].
j North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11611 Mail Service Center I Raleigh,North Carolina 27699-1611
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Docusign Envelope ID: 188222C0-301F-47FD-8863-76D2D1226699
• Based on DWR Instream Fecal Coliform Monitoring Guidance, since the facility discharges into
waters that are potentially impaired (i.e., Data Inconclusive) for fecal coliform, instream fecal
coliform monitoring has been added to 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 CFR136 method published in
the Federal Register[See Special Condition A.(4.)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). In addition, at the end of the Special
Condition, 2nd species Toxicity Testing Requirements for municipal permit renewals per Federal
Regulations [40 CFR 122.21(j)(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.
• 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.(5.)].
• Parameter codes have been added to the Effluent Pollutant Scan [See A.(3.)].
• The facility map was revised to replace subbasin number with HUC number.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you,you have the right to an adjudicatory hearing upon written request within thirty(30)days following
receipt of this letter. This request must be in the form of a written petition,conforming to Chapter 150B of
the North Carolina General Statutes, and filed with the Office of Administrative Hearings (6714 Mail
Service Center, Raleigh, North Carolina 27699-6714).Unless such demand is made,this decision shall be
final and binding.
Pretreatment updates in response to NPDES permit renewal:
• On March 30, 2025, 180 days after the effective date of this NPDES permit renewal, the Town is
required to submit to the Division a written technical evaluation of the need to revise local limits
(i.e.,an updated IWS/HWA-AT/L-STMP,or documentation of why is not needed).This action may
include revising, updating,or adding to the list of SIUs regardless of timeframe.
o Submit the updated Long-Term Monitoring Plan(LTMP)
• If there are new industries within the service area, submit an updated Industrial
Waste Survey(IWS)
• Review pollutants of concern(POCs)and update the LIMP to reflect pollutants in
industrial user permits(IUPs)and sludge management permit.
o As part of the local limits assessment, please submit the updated Headworks Analysis
(HWA).
The NPDES standard conditions (Parts II, III, and IV) 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.
Please note that this permit is not transferable except after notice to the Division. The Division may require
modification or revocation and reissuance of the permit. This permit does not affect the legal requirements
to obtain other permits which may be required by the Division of Water Resources or any other Federal,
State, or Local governmental regulations.
Q North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11611 Mail Service Center I Raleigh,North Carolina 27699-1611
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Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D1226699
If you have any questions concerning this permit,please contact Gary Perlmutter at(919) 707-3611 or via
email at [e-mail].
Sincerely,
—DocuSigned by:
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'—C464531431644FE...
Michael J. Montebello
NPDES Permitting Branch Chief
Division of Water Resources,NCDEQ
Hardcopy: NPDES Files
Central Files
Ecopy: US EPA Region 4
DWR/Mooresville Regional Office/Water Quality: Andrew Pitner&Wes Bell
DWR/Ecosystems Branch: Tammy Hill
DWR/Aquatic Toxicology Branch: Cindy Moore&Molly Nicholson
DWR/Municipal Permitting Unit: Keyes McGee
Town of Mooresville:Jeff Campbell
.j North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 11611 Mail Service Center I Raleigh,North Carolina 27699-1611
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Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D1226699
Permit NC0046728
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
INPDES)
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 Mooresville
is hereby authorized to discharge wastewater from a facility located at the
Rocky River Wastewater Treatment Plant
369 Johnson Dairy Road
Mooresville,NC
Iredell County
to receiving waters designated as the Dye 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,II,
III, and IV hereof.
This permit shall become effective October 01,2024.
This permit and authorization to discharge shall expire at midnight on March 31,2029.
Signed this day September 10,2024.
CC4cuSign.d by:
64531431644FE...
Michael J. Montebello,NPDES Permitting Branch Chief
Division of Water Resources
Page 1 of 11

Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D1226699
Permit NC0046728
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.
Town of Mooresville
is hereby authorized to:
1. Continue to operate and maintain the wastewater treatment works identified on the Cover,an existing
7.5 MGD facility consisting of the following components:
• Influent screw pump station
• Two equalization tanks
• Dual mechanical screens
• Two dual aeration basins(mechanical fixed aerators)
• Two dual final clarifiers
• Mixing tower
• Micro screen rotary disc filtration
• Dual UV channels using TrojanUV3000p1usTM system
• A series of cascades
• RAS/WAS pumps
• Two aerobic digesters(diffused air)
• A filter belt press
• Covered sludge storage area
• Four standby generators
• Low temp Huber B-2 sludge dryer
• Two 1,000,000-gallon package plant aerators with clarifiers(diffused air)
2. Discharge from said treatment works at the location specified on the attached map via Outfall 001 into
Dye Creek, classified C waters in the Yadkin-Pee Dee River Basin and 03040105 HUC.
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Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D1226699
Permit NC0046728
PART I
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS 17.5 MGD]
[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 7.5 MGD Continuous Recording I or E
BOD,5-day,20°C 3
(Apr 1—Oct 31) C0310 5.0 mg/L 7.5 mg/L Daily Composite I and E
BOD,5-day,20°C 3
(Nov 1—Mar 31) C0310 10.0 mg/L 15.0 mg/L Daily Composite I and E
Total Suspended Solids(TSS)3 C0530 30.0 mg/L 45.0 mg/L Daily Composite I 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 Coliform 31616 200/100 mL 400/l 00 mL Daily Grab E
(geometric mean)
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(TRC)4 50060 17 µg/L Daily Grab E
Conductivity(µmhos/cm) 00094 Monitor and Report Daily Grab E
TKN (mg/L) 00625 Monitor and Report Monthly Composite E
NO3-N+NO2-N (mg/L) 00630 Monitor and Report Monthly Composite E
Total Nitrogen 5 (mg/L) C0600 Monitor and Report Monthly Calculated E
Total Phosphorus(mg/L) C0665 Monitor and Report Monthly Composite E
Total Copper(µg/L) 01042 Monitor and Report Quarterly Composite E
Total Phenolic Compounds(µg/L) 32730 Monitor and Report Quarterly Composite E
PFAS 6 various Monitor and Report Quarterly 6 Grab E
Chronic Toxicity 7 TGP3B Monitor and Report Quarterly Composite E
Effluent Pollutant Scan 8 NC01 Monitor and Report Footnote 8 Footnote 8 E
Total Hardness(as CaCO3)9(mg/L) 00900 Monitor and Report Quarterly Composite E
Total Hardness(as CaCO3)1°(mg/L) 00900 Monitor and Report Quarterly Grab U
Dissolved Oxygen (mg/L) 00300 Monitor and Report Variable' Grab U and D
Temperature(°C) 00010 Monitor and Report Variable' Grab U and D
Conductivity(µmhos/cm) 00094 Monitor and Report Variable' Grab U and D
Fecal Coliform(#/100mL) 31616 Monitor and Report Variable' Grab U and D
(geometric mean)
Footnotes on the next page.
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Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D1226699
Permit NC0046728
Footnotes from A. (1.)Effluent Limitations and Monitoring Requirements:
1. The Permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Special Condition A.(5.).
2. Sample locations: I=Influent;E=Effluent;U=Upstream in Dye Creek approximately''A mile upstream of the
outfall; D= Downstream in Rocky River at NCSR 2420 and NCSR 1394. 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 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.
6. See Special Condition A.(4.).
7. Chronic Toxicity(Ceriodaphnia dubia)Pass/Fail at 90%with testing in February,May,August and November.
See Special Condition A.(2.).
8. The Permittee shall perform three effluent pollution scans during the term of this permit. See Special Condition
A.(3.).
9. Effluent hardness sampling should be performed in conjunction with testing for hardness dependent metals(e.g.,
copper).
10. The permittee shall sample instream hardness upstream of the facility's discharge. The sample shall be
representative of the hardness in the stream.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A.(2.) CHRONIC TOXICITY PERMIT LIMIT(QUARTERLY)
[15A NCAC 02B .0200, .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 90%.
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.
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Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D1226699
Permit NC0046728
If the test procedure performed as the first test of any single quarter results in a failure or ChV below
the permit limit,then multiple-concentration testing shall be performed at a minimum,in each of the
two following months as described in"North Carolina Phase II Chronic Whole Effluent Toxicity Test
Procedure"(Revised-December 2010,or subsequent versions).
All toxicity testing results required as part of this permit condition will be entered electronically using the
Division's eDMR system for the months in which tests were performed,using the parameter code TGP3B
for the pass/fail results and THP3B for the Chronic Value. Additionally,DWR Form AT-3 (original)is to
be sent to the following address:
North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh,NC 27699-1621
Or,results can be sent to the email,[e-mail].
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine
is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is
required, the permittee will complete the information located at the top of the aquatic toxicity (AT) test
form indicating the facility name, permit number, pipe number, county, and the month/year of the report
with the notation of"No Flow"in the comment area of the form.The report shall be submitted to the Water
Sciences Section at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring
will be required during the following month. Assessment of toxicity compliance is based on the toxicity
testing quarter, which is the three-month time interval that begins on the first day of the month in which
toxicity testing is required by this permit and continues until the final day of the third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division
of Water Resources indicate potential impacts to the receiving stream, this permit may be re-opened and
modified to include alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival,minimum control organism reproduction,and appropriate environmental controls, shall
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: 188222C0-301 F-47FD-8863-76D2D1226699
Permit NC0046728
A.(3.) 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: 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],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 COI00
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 1631 E) 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 00720 2-nitrophenol 34591 Hexachlorobenzene C0700
Total phenolic compounds 32730 4-nitrophenol 34646 Hexachlorobutadiene C0702
Volatile organic 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-trichlorobenzene 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: 188222C0-301F-47FD-8863-76D2D1226699
Permit NC0046728
(b.) Effluent Scan Reporting. Test results shall be reported electronically via eDMR by December 31st
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 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
(c.) 2"d Species Toxicity Testing and Reporting.
(i.) In addition to the quarterly toxicity tests required in Condition A.(2.)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 2"d 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"d species test shall coincide with the quarterly samples collected for
A.(2.)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"d 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"d 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: 188222C0-301F-47FD-8863-76D2D1226699
Permit NC0046728
A.(4.) PFAS MONITORING REQUIREMENT
[NCGS 143-215.1 (b.)]
This reporting requirement for the per- and polyfluoroalkyl substances (PFAS) parameters listed under
Table 1 of EPA Method 1633 takes effect the first full calendar quarter following six(6)months after EPA
publishes the method under 40 CFR Part 136 in the Federal Register. Monitoring will be at a quarterly
frequency.
Find the current parameters listed under Table 1 of the Method 1633 Analysis of Per-and Polyfluoroalkyl
Substances (PFAS) in Aqueous, Solid, Biosolids, and Tissue Samples by LC-MS/MS(EPA, January 2024)
at:
https://www.epa.gov/system/files/documents/2024-01/method-1633-final-for-web-posting.pdf.
A.(5.) 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.) 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 monthlyelectronicallyusingeDMR. The eDMR system allows permitted facilities to enter
Y
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
Raleigh,North Carolina 27699-1617
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Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D1226699
Permit NC0046728
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-
pol lutant-discharge-el imination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the"Reporting Requirements"section above.
3. How to Request a Waiver from Electronic Reporting
The Permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the
Division. Requests for temporary electronic reporting waivers must be submitted in writing to the
Division for written approval at least sixty (60) days prior to the date the facility would be required
under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver
shall not exceed 5 years and shall thereupon expire. At such time,monitoring data and reports shall be
submitted electronically to the Division unless the Permittee re-applies for and is granted a new
temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not
transferrable. Only permittees with an approved reporting waiver request may submit monitoring data
and reports on paper to the Division for the period that the approved reporting waiver request is
effective.
Page 9 of 11

Docusign Envelope ID: 188222C0-301 F-47FD-8863-76D2D 1226699
Permit NC0046728
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 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.)1
The Permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions.
These records or copies shall be maintained for a period of at least 3 years from the date of the report.
This period may be extended by request of the Director at any time [40 CFR 122.41].
Page 10 of 11

Docusign Envelope ID: 188222C0-301F-47FD-8863-76D2D1226699
Permit NC0046728
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USGS Quad Name:Mooresville Lat.:35°31'33"
Receiving Stream:Dye Creek(Branch) Long.:80°4656"
Stream Class:C
River Basin:Yadkin-Pee Dee HUC:03040105 North I Not to SCALE
Page 11 of 11