NC0046728_Draft Permit_20240723

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
ROY COOPER
Governor
ELIZABETH S. BISER
Secretory
RICHARD E. ROGERS, JR.
Director
Mr. James A. Levis, Mayor
Town of Mooresville
P.O. Box 878
Mooresville, North Carolina 28115
Dear Mr. Levis:
NORTH CAROLINA
Environmental Quality
July 23, 2024
Subject: Draft NPDES Permit Renewal
Permit NCO046728
Rocky River WWTP
Iredell 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:
• The system component list was updated with the addition of a low hump sludge dryer and two I -
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.(I .)].
• 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.)].
• 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 pennit, 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.
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh, North Carolina 27699-1611
�a�\ r 919.707.9000

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
• 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, 2°d 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.
• 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.
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 Iredell 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,
E �;.C,WDF.4.,
fpnad by:
...
Gary Perlmutter, Environmental Specialist II
NPDES Municipal Permitting Unit
Hardcopy: NPDES Files
eCopy: USEPA / Region 4
DWR / Mooresville Regional Office / Water Quality: Andrew Pitner & Wes Bell
DWR / Operator Certification Program: Jeff Talbot
DWR / Ecosystems Branch: Tammy Hill
DWR / Aquatic Toxicology Branch: Cindy Moore & Molly Nicholson
DWR / Municipal Permitting Unit: Keyes McGee
Town of Mooresville: Jeff Campbell
North Carolina Department of Environmental Quality I Division of Water Resources
512 North Salisbury Street 1 1611 Mail Service Center I Raleigh. North Carolina 27699-1611

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC962C
Permit NCO046728
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
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 Month 01, 2024.
This permit and authorization to discharge shall expire at midnight on March 31, 2029.
Signed this day Month xx, 2024.
DRAFT
Michael J. Montebello, NPDES Permitting Branch Chief
Division of Water Resources
Page 1 of 11

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
Permit NCO046728
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 TrojanUV3000plus*rm 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.
Page 2 of 11

Docusign Envelope ID. 07D51AC7-F5DA-42C1-671D-866A7CFC9132C
Permit NCO046728
PART I
A.(I.) 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 Penmittee 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
Measuremen
t Frequency
Sample
Type
Sample
Location2
Flow 50050
7.5 MGD
Continuous
Recording
I or E
BOD, 5-day, 200C 3 C0310
(Apr 1— Oct 31)
5.0 mg/L
7.5 mg/L
Daily
Composite
I and E
BOD, 5-day, 200C 3 C0310
(Nov 1— Mar 31)
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 C0610
(Apr 1— Oct 31)
1.0 mg/L
3.0 mg/L
Daily
Composite
E
NH3 as N C0610
(Nov 1— Mar 31)
2.0 mg/L
6.0 mg/L
Daily
Composite
E
Fecal Coliform 31616
(geometric mean)
200/100 mL
400/100 mL
Daily
Grab
E
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)' 50060
1 1 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 TGP3B
Monitor and Report
Quarterly
Composite
E
Effluent Pollutant Scan 8 NCO]
Monitor and Report
Footnote 8
Footnote 8
E
Total Hardness (as CaCO3)' (mg/L) 00900
Monitor and Report
Quarterly
Composite
E
Total Hardness (as CaCO3)10 (mg/L) 00900
Monitor and Report
Quarterly
Grab
U
Dissolved Oxygen (mg/L) 00300
Monitor and Report
Variable2
Grab
U and D
Temperature (°C) 00010
Monitor and Report
Variable2
Grab
U and D
Conductivity (µmhos/cm) 00094
Monitor and Report
Variable2
Grab
U and D
Fecal Coliform (#/]00mL) 31616
(geometric mean)
Monitor and Report
Variable2
Grab
U and D
Footnotes on the next page.
Page 3 of 11

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
Permit NCO046728
Footnotes from A. 0.) 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 %z 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 penmittee 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)
[I 5A 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.
Page 4 of 11

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
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 TGP311
for the pass/fail results and THP313 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 5 of 11

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
Permit NCO046728
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.Q.) 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
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
34413
Chrysene
34320
Hardness
00900
1,1,2,2-tetrachloroethane
81549
Di-n-butyl phthalate
39110
Antimony
01097
Tetrachloroethylene
34475
Di-n-octyl phthalate
34596
Arsenic
01002
Toluene
34010
Dibenzo(a h)anthracene
34556
Beryllium
01012
1,1,1-trichloroethane
34506
1,2-dichlorobenzene
34536
Cadmium
01027
1,1,2-trichloroethane
34511
1,3-dichlorobenzene
34566
Chromium
C0034
Trichloroethylene
39180
1,4-dichlorobenzene
34571
Copper
01042
Vinyl chloride
39175
3,3-dichlorobenzidine
34631
Lead
01051
Acid -extractable compounds:
Diethyl phthalate
34336
Mercury (Method 1631E)
COMER
P-chloro-m-cresol
34452
Dimethyl phthalate
34341
Nickel
01067
2-chlorophenol
34586
2,4-dinitrotoluene
34611
Selenium
01147
2,4-dichlorophenol
34601
2,6-dinitrotoluene
C0626
Silver
01077
2,4-dimethylphenol
34606
1,2-diphenylhydrazine
34346
Thallium
01059
4,6-dinitro-o-cresol
34657
Fluoranthene
C0376
Zinc
01092
2,4-dinitrophenol
34616
Fluorene
34381
Cyanide
00720
2-nitrophenol
34591
Hexachlorobenzene
C0700
Total phenolic compounds
32730
4-nitrophenol
34646
Hexachlorobutadiene
C0702
Voladle organic contooun&
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-neutralcornoounds:
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
Page 6 of 11

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
Permit NC0046728
(b.) Effluent Scan Revorting. 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 "1" or "Y" for parameter
code NCO1 - 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/FormsNPDES—WW-EDMR-
Supplemental-Form
(c.) 21d 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 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
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.
Page 7 of 11

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
Permit NCO046728
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 PoMuoroalkyl
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-163 3 -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 11 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. Renortin 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:Hdeq.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
Page 8 of l l

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
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.federaire ig ster.pov/documents/2015/10/22/2015-24954/national-
pollutant-discharge-elimination-system-npdes-electronic-reporting
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. How to Request a Waiver from Electronic Reyortin¢
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: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
Permit NCO046728
Information on eDMR and the application for a temporary electronic reporting waiver are found on the
following web page: h=:Hdeq.nc.gov/about/divisions/water-resources/edmr.
4. Signatory Requirements ISurmlements 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 L)(a) or by a duly authorized representative of that person as described in Part II, Section
B. (I 1.xb). 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: hqp://deg.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 122.221. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
V 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. 1 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 ].
Page 10 of 11

Docusign Envelope ID: 07D51AC7-F5DA-42C1-B71D-866A7CFC9B2C
Pen -nit NCO046728
.50
$e •g "N'.at� o ti
i \Plant ^'' I
' t •
1's
t 19 N y
- /�A • ice_` �
Discharge location
9q ,
lid
cp
• ,; --.-.
Rocky River WWTF - N00046728 Facility
Location
USGS Quad Name: Mooresville Lat.: 35°31'33"
Receiving Stream: Dye Creek (Branch) Long.: 80.46'56"
Stream Class: C Not to SCALF
River Basin: Yadkin -Pee Dee HUC 030101Og North
Page 11 of 11