NC0025909_Draft Permit_20220815

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR. NORTH CAROLINA
Director Environmental Quality
August 17, 2022
Doug Barrick, Town Manager
Town of Rutherfordton
PO Box 1925
Rutherfordton, North Carolina 28139
Subject: Draft NPDES Permit Renewal
Permit NC0025909
Rutherfordton WWTP
Rutherford County
Grade III & IV Biological WPCS
SIC Code 4952
Dear Mr. Barrick:
Enclosed with this letter is a copy of the Draft NPDES permit renewal for your facility. Please
review this draft carefully to ensure thorough understanding of the requirements and conditions it
contains. There are several changes from the existing permit, including the following:
• Based on the reasonable potential analysis (RPA) showing no reasonable potential to
violate state water quality standards, the monitoring requirements for total copper and total
zinc have been removed from the permit at the 1.0 MGD flow tier [See A.(1)].
• Based on the reasonable potential analysis (RPA) showing reasonable potential to violate
state water quality standards and best professional judgement after review of upstream and
influent sampling, monthly monitoring for total silver has been added [See A.(1.) and A.(2.)].
• Based on the reasonable potential analysis (RPA) showing reasonable potential to violate
state water quality standards for protection of downstream WS-IV water uses, nitrate limits
and monthly monitoring have been added to the permit [See A.(1) and A.(2.)].
• Based on Mercury TMDL evaluation showing mercury values reported at levels > 1 ng/L,
Special Condition A.(7.) Mercury Minimization Plan has been added to the permit, effective
upon expansion to the 3.0 MGD flow tier.
• To provide an opportunity for the Town to develop a plan to assess sources of nitrate in
order to come in compliance with the limits in Sections A. (1.) and A.(2.), a 3-year schedule
of compliance has been added to the permit [See Special Condition A.(5.) Schedule of
Compliance for Nitrate Limitations].
• 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 final wastewater method in 40 CFR136
method published in the Federal Register [See Special Condition A.(6.) PFAS Monitoring
Requirements].
• The Division is implementing dissolved metals standards in all permits, per the 2016
revisions to State water quality standards. As such, the NPDES Permitting Unit will need
oep.m.m oremrnment Want -
DEQ3NORTH CAROLINA
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
919.707.9000

site -specific effluent hardness data and instream hardness data, upstream of the discharge, for
each facility monitoring these metals in order to calculate permit limitations. Effluent
hardness and instream hardness sampling, upstream of the discharge, have been added to the
permit at a monitoring frequency of quarterly [See A.(1.) and A.(2.)].
• Language has been added to Footnote 1 to account for influent, effluent, upstream and
downstream abbreviations [See A. (1.) and A.(2.)].
• 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 2nd species Toxicity Testing
Requirements for municipal permit renewals per Federal Regulations [40 CFR 122.21(j)(5)].
• 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.
• Parameter codes have been added to the Effluent Limitations and Monitoring Requirements
[ See A.(1.)].
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 Rutherford 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:
7900A4FBFCA14FD...
Nick Coco, PE
NPDES Municipal Permitting Unit
Hardcopy: NPDES Files
Ecopy: US EPA Region 4
DWR/Asheville Regional Office/Water Quality/Tim Heim
DWR/Operator Certification Program/Maureen Kinney
DWR/Aquatic Toxicology Branch/Zach Thomas and Cindy Moore
DWR/Municipal Permitting Unit/Keyes McGee
DWR/Basin Planning/Michelle Raquet
Veolia/Nadine Blackwell
D_E
NORTH CARCLINA
gaparMeM of Environment,/quay
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
919.707.9000

Permit NC0025909
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
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 Rutherfordton
is hereby authorized to discharge wastewater from a facility located at the
Rutherfordton WWTP
1021 South Main Street
Rutherfordton
Rutherford County
to receiving waters designated as the Cleghorn Creek in the Broad 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, 2022.
This permit and authorization to discharge shall expire at midnight on July 31, 2027.
Signed this day Month xx, 2022.
DRAFT
for Richard E. Rogers, Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 15

Permit NC0025909
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 Rutherfordton
is hereby authorized to:
1. Continue to operate and maintain the wastewater treatment Rutherfordton WWTP, an existing 3.0
MGD facility (at a permitted flow of 1 MGD) consisting of the following components:
• mechanical bar screen
• grit removal
• equalization basin
• three aeration basins
• two secondary clarifiers
• chlorine contact chamber
• dechlorination
• aerobic digester
This permitted facility is located at the Rutherfordton WWTP, 1021 South Main Street,
Rutherfordton, in Rutherford County.
2. Operate at a permitted flow of 1.0 MGD until the rolling average flow for any twelve (12) month
period exceeds 0.8 MGD, after which time the facility shall monitor in accordance with the Effluent
Limitations and Monitoring Requirements specified for 3.0 MGD in Section A.(2.). The Town of
Rutherfordton shall notify DWR, NPDES Compliance & Expedited Permitting, 1617 Mail Service
Center, Raleigh, NC 27699-1617 in writing, and within seven (7) days of when the facility becomes
subject to the limitations in Section A.(2.).
3. Discharge from said treatment works at the location specified on the attached map via Outfall 001
into Cleghorn Creek, classified C waters in the Broad River Basin.
Page 2 of 15

Permit NC0025909
PART I
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [1.0 MGD]
[15A NCAC 02B .0400 et seq., 15A NCACO2B .0500 et seq.] Grade III
Biological Water Pollution Control System [15A NCAC 08G .0302]
(a.) During the period beginning on the effective date of the permit and lasting until the rolling average
flow for any twelve (12) month period exceeds 0.8 MGD or expiration, whichever is sooner, 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
Location2
Flow
50050
1.0 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C 3
C0310
30.0 mg/L
45.0 mg/L
2/week 4
Composite
I and E
Total Suspended Solids3
C0530
30.0 mg/L
45.0 mg/L
2/week4
Composite
I and E
NH3 as N (Apr 1 - Oct 31)
C0610
2.0 mg/L
6.0 mg/L
2/week4
Composite
E
NH3 as N (Nov 1 - Mar 31)
C0610
4.7 mg/L
14.1 mg/L
2/week4
Composite
E
Fecal Coliform
(geometric mean)
31616
200/100 mL
400/100 mL
2/week4
Grab
E
Dissolved Oxygen
00300
Daily Average > 5.0 mg/L
3/week
Grab
E
pH
00400
Between 6.0 and 9.0 Standard Units
3/week
Grab
E
Temperature (°C)
00010
Monitor and Report
Daily
Grab
E
Total Residual Chlorine 5
50060
28 µg/L
3/week
Grab
E
Total Silver (µg/L)
01077
Monitor and Report
Monthly
Grab
E
Total Phosphorus (mg/L) A
C0665
Monitor and Report
Quarterly
Composite
E
Total Nitrogen 6 (mg/L)
C0600
Monitor and Report
Quarterly
Calculated
E
Nitrate?
00620
22.0 mg/L
Monthly
Composite
E
Chronic Toxicity 8
TGP3B
Monitor and Report
Quarterly
Composite
E
Effluent Pollutant Scan 9
NC01
Monitor and Report
Footnote 9
Footnote 9
E
Hardness10 -Total as CaCO3
(mg/L)
00900
Monitor and Report
Quarterly
Composite
E
Hardness10 -Total as CaCO3
(mg/L)
00900
Monitor and Report
Quarterly
Grab
U
PFAS
various
Footnote 11
Footnote 11
Grab
E
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
Footnotes:
1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Special Condition A.(8.).
2. Sample locations I -Influent, E-Effluent, U-Upstream just above the outfall, D-Downstream at least 300 feet
below outfall. 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.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85% removal).
4. Twice per week sampling must occur on any two non-consecutive days during the calendar week.
Footnotes continue on the next page.
Page 3 of 15

Permit NC0025909
Footnotes continued from A.(1.) Effluent Limitations and Monitoring Requirements:
5. The facility shall monitor TRC when using chlorination for disinfection. The Division shall consider all effluent
total residual chlorine values reported below 50 µg/1 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/1.
6. 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.
7. The Permittee shall achieve compliance with these limitations within three years of the effective date of this
permit and shall follow the Nitrate compliance schedule detailed in Special Condition A. (5.). Starting on the
effective date of this permit, the Permittee shall perform monthly effluent Monitoring and Reporting for Nitrate.
8. Chronic Toxicity (Ceriodaphnia dubia) P/F at 45% with testing in January, April, July and October. See Special
Condition A.(3.).
9. The permittee shall perform three effluent pollution scans during the term of this permit. See Special Condition
A.(4.).
10. The permittee shall sample instream hardness upstream of the facility's discharge. The sample shall be
representative of the hardness in the stream. Effluent hardness shall be performed in conjunction with testing for
hardness dependent metals (cadmium, copper, lead, nickel, silver, and zinc).
11. See Special Condition A.(6.).
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 15

Permit NC0025909
A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS [3.0 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 when the rolling average flow for any twelve (12) month period
exceeds 0.8 MGD and lasting until 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
3.0 MGD
Continuous
Recording
I or E
BOD, 5 day, 20°C 3
C0310
5.0 mg/L
7.5 mg/L
2/week4
Composite
I and E
Total Suspended Solids3
C0530
30.0 mg/L
45.0 mg/L
2/week 4
Composite
I and E
NH3 as N (Apr 1 - Oct 31)
C0610
1.0 mg/L
3.0 mg/L
2/week 4
Composite
E
NH3 as N (Nov 1 - Mar 31)
C0610
2.0 mg/L
6.0 mg/L
2/week4
Composite
E
Fecal Coliform
(geometric mean)
31616
200/100 mL
400/100 mL
2/week4
Grab
E
Dissolved Oxygen
00300
Daily Average > 5.0 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 5
50060
24 µg/L
Daily
Grab
E
Total Copper (µg/L)
01042
Monitor and Report
Quarterly
Grab
E
Total Zinc (µg/L)
01092
Monitor and Report
Quarterly
Grab
E
Total Silver (µg/L)
01077
Monitor and Report
Monthly
Grab
E
Total Phosphorus (mg/L)
C0665
Monitor and Report
Quarterly
Composite
E
Total Nitrogen 6 (mg/L)
C0600
Monitor and Report
Quarterly
Calculated
E
Nitrate
00620
14.0 mg/L
Monthly
Composite
E
Chronic Toxicity 7
TGP3B
Monitor and Report
Quarterly
Composite
E
Effluent Pollutant Scan 8 1
NC01
Monitor and Report
Footnote 8
Footnote 8
E
Hardness9 -Total as CaCO3 (mg/L)
00900
Monitor and Report
Quarterly
Composite
E
Hardness9 -Total as CaCO3 (mg/L)
00900
Monitor and Report
Quarterly
Grab
U
PFAS
various
Footnote 10
Footnote 10
Grab
E
Dissolved Oxygen (mg/L)
00300
Monitor and Report
Variable'
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
Footnotes:
1. The permittee shall submit Discharge Monitoring Reports electronically using NC DWR's eDMR application
system. See Special Condition A.(8.).
2. Sample locations I -Influent, E-Effluent, U-Upstream just above the outfall, D-Downstream at least 300 feet
below outfall. 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.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85% removal).
4. Twice per week sampling must occur on any two non-consecutive days during the calendar week.
Footnotes continue on the next page.
Page 5 of 15

Permit NC0025909
Footnotes continued from A.(2.) Effluent Limitations and Monitoring Requirements:
5. 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/1.
6. 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.
7. Chronic Toxicity (Ceriodaphnia dubia) P/F at 71% with testing in January, April, July and October. See Special
Condition A.(3.).
8. The permittee shall perform three effluent pollution scans during the term of this permit. See Special Condition
A.(4.).
9. The permittee shall sample instream hardness upstream of the facility's discharge. The sample shall be
representative of the hardness in the stream. Effluent hardness shall be performed in conjunction with testing for
hardness dependent metals (cadmium, copper, lead, nickel, silver, and zinc).
10. See Special Condition A.(6.).
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 6 of 15

Permit NC0025909
A.(3.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
[15A NCAC 02B .0200]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 45% at 1.0 MGD and 71% at 3.0
MGD.
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
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,
Page 7 of 15

Permit NC0025909
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 8 of 15

Permit NC0025909
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: 2024,
2025, and 2026. Analytical methods shall be in accordance with 40 CFR Part 136 and shall be
sufficiently sensitive to determine whether parameters are present in concentrations greater than
applicable standards and criteria. Each annual sample shall coincide with one quarterly toxicity test
each year (see Condition A.(3.) CHRONIC TOXICITY PERMIT LIMIT (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) Trans-1,2-dichloroethylene 34546 Bis (2-chloroethyl) ether
Chlorine (total residual, TRC) 1,1-dichloroethylene 34501 Bis (2-chloroisopropyl) ether
Dissolved oxygen 1,2-dichloropropane C0541 Bis (2-ethylhexyl) phthalate
Nitrate / Nitrite 1,3-dichloropropylene 77163 4-bromophenyl phenyl ether
Kjeldahl nitrogen Ethylbenzene 34371 Butyl benzyl phthalate
Oil and grease Methyl bromide 34413 2-chloronaphthalene
Phosphorus
Total dissolved solids
Hardness
Antimony
Arsenic
Beryllium
Cadmium
Chromium
Copper
Lead
Mercury (Method 1631E)
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total phenolic compounds
Volatile organic compounds:
Acrolein
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
2-chloroethyl vinyl ether
Chloroform
Dichlorobromomethane
1,1-dichloroethane
1,2-dichloroethane
CO610
50060
00300
00630
00625
00556
C0665
70295
00900
01097
01002
01012
01027
C0034
01042
01051
Methyl chloride
Methylene chloride
1,1,2,2-tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-trichloroethane
1,1,2-trichloroethane
Trichloroethylene
Vinyl chloride
Acid -extractable compounds:
COMER P-chloro-m-cresol
01067 2-chlorophenol
01147 2,4-dichlorophenol
01077 2,4-dimethylphenol
01059 4,6-dinitro-o-cresol
01092 2,4-dinitrophenol
00720 2-nitrophenol
32730 4-nitrophenol
Pentachlorophenol
34210 Phenol
34215 2,4,6-trichlorophenol
34030 Base -neutral compounds:
32104 Acenaphthene
32102 Acenaphthylene
34301 Anthracene
34306 Benzidine
85811 Benzo(a)anthracene
34576 Benzo(a)pyrene
32106 3,4 benzofluoranthene
32101 Benzo(ghi)perylene
34496 Benzo(k)fluoranthene
32103 Bis (2-chloroethoxy) methane
Page 9 of 15
34418
34423
81549
34475
34010
34506
34511
39180
39175
34452
34586
34601
34606
34657
34616
34591
34646
39032
34694
34621
34205
34200
CO220
39120
C0526
34247
34230
34521
34242
34278
4-chlorophenyl phenyl ether
Chrysene
Di-n-butyl phthalate
Di-n-octyl phthalate
Dibenzo(a,h)anthracene
1,2-dichlorobenzene
1,3-dichlorobenzene
1,4-dichlorobenzene
3,3-dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
2,4-dinitrotoluene
2,6-dinitrotoluene
1,2-diphenylhydrazine
Fluoranthene
Fluorene
Hexachlorobenzene
Hexachlorobutadiene
Hexachlorocyclo-pentadiene
Hexachloroethane
Indeno(1,2,3-cd)pyrene
Isophorone
Naphthalene
Nitrobenzene
N-nitrosodi-n-propylamine
N-nitrosodimethylamine
N-nitrosodiphenylamine
Phenanthrene
Pyrene
1,2,4-trichlorobenzene
34273
34283
CO100
34636
34292
34581
34641
34320
39110
34596
34556
34536
34566
34571
34631
34336
34341
34611
C0626
34346
C0376
34381
C0700
C0702
34386
34396
34403
34408
34696
34447
34428
34438
34433
34461
34469
C0551

Permit NC0025909
(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 "1" or "Y" for
parameter code NC01 - Annual Pollutant Scan. If written reports are approved, the report shall be
submitted to the following address:
North Carolina Division of Water Resources
Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Or the form may be uploaded at: https://edocs.deq.nc.gov/Forms/NPDES_WW-EDMR-
Supplemental-Form
(c.) 2°d-Species Toxicity Testing and Reporting.
(i.)
In addition to the quarterly toxicity tests required in Condition A.(3.) (CHRONIC TOXICITY
PERMIT LIMIT (QUARTERLY)), the Permittee shall perform and report the results of four
(4) toxicity tests using the same test methods using a second species of test organism suitable
to the tests being conducted.
(ii.) The 2nd species toxicity tests shall be conducted either:
(A) Once per quarter in a single 12-month period (four samples); if this option is chosen,
the sample for each 2nd species test shall coincide with the quarterly samples collected
for (tox condition title); 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
sample 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 10 of 15

Permit NC0025909
A.(5.) SCHEDULE OF COMPLIANCE FOR NITRATE LIMITATIONS
[G.S. 143-215.1 (b)]
(a.) Within one year from effective date of permit the Permittee shall submit to the Division a
Corrective Action Plan (CAP) for Division approval, summarizing the strategy or actions to be
taken to achieve compliance with the Nitrate limitations listed in Section A.(1.). This plan will
include specific dates for completion or implementation of each action.
(b.) Within two years from effective date of permit the Permittee shall submit to the Division a
summary of actions taken towards achieving compliance with the Nitrate limitations specified in
Section A.(1.).
(c.) Within three years from effective date of permit, the Permittee shall achieve compliance with
Nitrate limitations specified in Section A.(1.).
(d.) Upon approval of the Corrective Action Plan (CAP) by the Division, the report, actions, and
implementation dates become an enforceable part of this permit. Any modifications to the schedule
shall be requested to the Division at least ninety (90) days before the deadline. Modifications to the
schedule more than four months will be subject to public notice.
(e.) Should the rolling average flow for any twelve (12) month period exceed 0.8 MGD and expansion
to the 3.0 MGD flow tier occur, the Permittee shall achieve compliance with Nitrate limitations
specified in Section A.(2.) when effective.
(f) Annual summaries and the CAP shall include the owner's name, NPDES permit number, and
a Permittee contact person and shall be submitted to:
NCDEQ / Division of Water Resources NCDEQ / Division of Water Resources
NPDES Permitting Asheville Regional Office
1617 Mail Service Center 2090 U.S. 70 Highway
Raleigh, NC 27699-1617 Swannanoa, NC 28778
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 quarterly frequency.
Find the current parameters listed under Table 1 of the August 2021 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/2021-09/method_ 1633_draft aug-2021.pdf
Page 11 of 15

Permit NC0025909
A.(7.) MERCURY MINIMIZATION PLAN (MMP)
[N.C.G.S. 143-215.1 (B)]
Upon expansion to the 3.0 MGD flow tier, the Permittee shall develop and implement a mercury
minimization plan during this permit term. The MMP shall be developed within 180 days of the permit
effective date, and shall be available for inspection on -site. A sample MMP was developed through a
stakeholder review process and has been placed on the Division website for guidance
(https://deq.nc.gov/document/nc-model-mercury-minimization-plan-dwr-npdes-swp-20130801). The
MMP should place emphasis on identification of mercury contributors and goals for reduction. Results
shall be summarized and submitted with the next permit renewal. Performance of the Mercury
Minimization Plan will meet the requirements of the TMDL (Total Maximum Daily Load) for mercury
approved by USEPA on October 12, 2012, unless and until a Waste Load Allocation specific to this
facility is developed and this NPDES permit is amended to require further actions to address the Waste
Load Allocation.
A.(8.) ELECTRONIC REPORTING - DISCHARGE MONITORING REPORTS
[G.S. 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December 21,
2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)I
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted monthly electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. The eDMR system may be
accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative
forms approved by the Director. Duplicate signed copies shall be submitted to the following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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Permit NC0025909
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 monthly via the eDMR system no later than the last calendar day of the month following the
completed reporting period. Regardless of the submission method, the first DMR is due on the last
day of the month following the issuance of the permit or in the case of a new facility, on the last day
of the month following the commencement of discharge.
Starting on December 21, 2025, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports; and
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see "How to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of
each electronic submission. The permittee should use the EPA's website resources to identify the
initial recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity
(EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity
for receiving electronic NPDES data [see 40 CFR 127.2(b)].
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for
each type of electronic submission and for each state. Instructions on how to access and use the
appropriate electronic reporting tool will be available as well. Information on EPA's NPDES
Electronic Reporting Rule is found at: https://www.federalregister.gov/documents/2015/10/22/2015-
24954/national-pollutant-discharge-elimination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the
Division. Requests for temporary electronic reporting waivers must be submitted in writing to the
Division for written approval at least sixty (60) days prior to the date the facility would be required
under this permit to begin submitting monitoring data and reports. The duration of a temporary
waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports
shall be submitted electronically to the Division unless the permittee re -applies for and is granted a
new temporary electronic reporting waiver by the Division. Approved electronic reporting waivers
are not transferrable. Only permittees with an approved reporting waiver request may submit
monitoring data and reports on paper to the Division for the period that the approved reporting waiver
request is effective.
Page 13 of 15

Permit NC0025909
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 FSupplements 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 14 of 15

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Subbasin: 030802 Rutherfordton WWTP
Stream Index: 9-26-(0.5)
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Receiving Stream: Cleghom Creek Latitude: 35°20'28"
Stream Class: C Longitude: 81°57'38"
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Not to Scale
Page 15 of 15