NC0026573_Permit (Issuance)_20220728

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
NORTH CAROLINA
Environmental Quality
July 28, 2022
City of Morganton
Attn: Eli Self, Superintendent and ORC
P.O. Box 3448
Morganton, NC 28680
Transmitted via email to eself(dci.morganton.nc.us
Subject: Final NPDES Permit Renewal
Permit NC0026573
Catawba River Pollution Control Facility
Burke County
Facility Grade IV (8.0, 10.5, and 13.0 MGD)
SIC Code 4952
Dear Permittee:
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).
The following changes were made to the draft permit sent to you on June 14, 2022:
• Based on the categories of significant industrial users (SIUs) discharges, there is a need to assess PFAS
compounds. Special Condition A. (10.) has been revised to monitor effluent PFAS chemicals quarterly,
to be effective six (6) months after EPA has a final wastewater method in 40 CFR 136 published in the
Federal Register.
• Upon review of the most recent silver monitoring data, all the values were less than detect after
September 2019; however, to collect additional representative data, DEQ is increasing monitoring
frequency to monthly with the requirement to use the most sensitive Practical Quantification Limit
(PQL). Monitoring for silver has been revised for 8.0 MGD, 10.5 MGD, and 13.0 MGD [See Sections
A. (1.), A. (2.), and A. (3.)]. A review of the silver data will be made in the next permit renewal.
The final permit maintains the following significant changes identified in the letter sent to you on
June 14, 2022:
• The permit expiration date was modified to February 26, 2027. Accordingly, the specified years for the
Effluent Pollutant Scans have been adjusted (2024, 2025, 2026). See Special Condition A. (6.).
• The Supplement to Permit Cover Sheet (Cover Sheet), item 1, was updated to list the current wastewater
treatment flow capacity, 8.0 MGD, based on information provided by the Facility in the 2022 permit
renewal process.
• The authorization language in the Cover Sheet and Special Condition A. (1.) and A. (2.) was updated
to modify the requirements before the Facility is authorized to transition from the 8.0 MGD flow tier
into the 10.5 MGD flow tier. This change was made to require an upgrade of the Facility to meet the
final limits for the 10.5 MGD effluent limitation page. Please be aware that 15A NCAC 02T. 0118
addresses actions related to the WWTP capacity based on the permitted hydraulic flow.
• Based on our review of the nutrient information, the proposed nutrients limits (Total Nitrogen (TN) and
Total Phosphorous (TP)) have been removed from the 10.5 MGD flow tier limitation page; as well as

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
monitoring requirements for Total Kjeldahl Nitrogen and Nitrite and Nitrate. TN and TP annual load
monitoring requirements for 10.5 MGD are added. [See Special Condition A. (2.).]
The limits for the 13.0 MGD flow tier page have been maintained at your request with the same limits
that was originally public noticed. The 13.0 MGD flow tier may not be used for an extended period of
time from your information, it is not appropriate to change the existing 13.0 MGD limits. When the
original NPDES permit was issued a review of the 13.0 MGD flow tier was conducted and approved,
so this flow tier will be maintained.
• The monitoring frequency for copper was corrected from quarterly to monthly. See Special Condition
A. (1.), A. (2.), and A. (3.).
• The draft weekly average limit for BOD5 for the 10.5 MGD flow tier was corrected from 45.0 to 27.8
mg/1, as was set in the previous permit for this flow tier.
• The reasonable potential analysis (RPA) was corrected to change the outstanding resource water
(ORW) stream classification in the original draft with the correct classification as WS-IV and CA. This
correction updates the calculated water quality standard (WQS) values and the RPA results:
o The limit for copper was updated for all flow tiers. See Special Condition A. (1.), A. (2.), and
A. (3.). Special Condition A. (9.) was updated to include a notation for the Permiee with the
option to request the removal of the Copper Schedule of Compliance.
o The monitoring requirement for zinc for 10.5 and 13.0 MGD was removed. See Special
Condition A. (2.), and A. (3.).
o The monitoring requirement for selenium for 13.0 MGD was removed. See Special Condition
A. (3.).
• Special Condition A. (6.) was also updated to include language about the additional toxicity sampling.
Samples must represent seasonal variation.
• Facility components listed on the Supplement to Permit Cover Sheet were adjusted according to the
flow process diagram provided with the permit application renewal.
• Parameter codes and Facility's Grade were included in the Effluent Limitations and Monitoring
Requirements tables. [See Sections A. (1.), A. (2.), and A. (3.)].
• The outfall coordinates were updated throughout the permit according to the locations provided by the
Permiee in the permit application renewal process.
• For consistency with the use of the current 7Q10, this renewal uses the most recent summer 7Q10 of
118 cfs for the limit pages for 8.0 MGD, 10.5 MGD, and 13.0 MGD.
• The results of instream waste concentration (IWC)-based calculations for ammonia -nitrogen, ammonia
nitrogen limits have been changed to reflect appropriate limits for the 8.0 MGD flow tier [See A. (1.)].
• 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 site -specific effluent hardness
data and instream hardness data upstream of the discharge for each Facility monitoring these metals 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 Sections A. (1.),
A. (2.), and A. (3.)].
• Based on the reasonable potential analysis (RPA) predicting a maximum effluent copper concentration
that is greater than the allowable discharge concentration based on state water quality standards, limit
and monthly monitoring for copper has been added to the permit [See Sections A. (1.), A. (2.), and A.
(3-)]-
To provide an opportunity for the City to develop a plan to assess sources of copper to come in
compliance with the limit in Section A. (1.), a 3-year schedule of compliance has been added to the
permit [See Special Condition A. (9.) Schedule of Compliance for Copper Limitations].
• Based on the RPA predicting a maximum effluent concentration that is greater than the allowable
discharge concentration based on state water quality standards, quarterly monitoring for antimony has
been added to the permit for 8.0 MGD, 10.5 MGD, and 13.0 MGD [See Sections A. (1.), A. (2.), and
A. (3.)].
• The City of Morganton reported total silver at less than detection, with detection levels of < 1.0 µg/L
and < 2.5 µg/L in the Effluent Pollutant Scans (EPS) and discharge monitoring reports (DMRs). Based
on the RPA, the City's calculated total silver allowable discharge concentration for 8.0 MGD is 0.63
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DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
jig/L. The DWR's laboratory identifies the target Practical Quantification Limit (PQL) for silver as 1.0
jig/L. 15A NCAC 2B .0505 (e) (4) requires that all test procedures must produce detection and reporting
levels that are below the permit discharge requirements, and all data generated must be reported to the
approved detection level or lower reporting level of the procedure. The method with the lowest
detection level must be used unless there is a documented matrix interference.
• In order for the Permittee to calculate the total nitrogen (TN) and total phosphorous (TP) loads, the total
monthly flow (TMF) of wastewater discharged during the month is needed; therefore, monitoring and
reporting for TMF has been added for 13.0 MGD. [See Sections A. (2.), and A. (3.)].
• Based on the need to assess aluminum in the RPA and calculate a specific water quality standard for
aluminum, quarterly monitoring for aluminum and dissolved organic carbon has been added to the
permit [See Sections A. (1.), A. (2.), and A. (3.)].
• Language has been added to require the submittal of discharge monitoring reports electronically using
NC DWR's eDMR application system [See Sections A. (1.), A. (2.), and A. (3.) Footnote 1].
• Language has been added to update information about upstream and downstream sampling locations
according to the locations provided by the Permittee in the permit application renewal process. [See
Sections A. (1.), A. (2.), and A. (3.) Footnote 2].
• Language has been added to include information on monitoring coalition programs. [See Sections A.
(1.), A. (2.), and A. (3.) Footnote 8].
• 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. [See Special Condition
A. (7.)].
• Federal regulations require the 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. (7.)].
Pretreatment updates in response to NPDES permit renewal:
o On February 28, 2023, 180 days after the effective date of this NPDES permit renewal, City of
Morganton 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 the
timeframe.
o Submit the updated Long -Term Monitoring Plan (LTMP) addressing the following:
• Review pollutants of concern (POCs) and update the POC Table and Sampling Plan
Table to reflect pollutants in the NPDES permit, industrial user permits (IUPs),
sludge management permit, and pollutants of concern for the POTW.
• The target Practical Quantification Level (PQL) for silver shall be updated from 5.0
to 1.0 µg/1.
• The Division recommends updating the PQL for the following parameters: arsenic
(from 10.0 to 2.0 µg/1), cadmium (from 2.0 to 0.5 µg/1), lead (from 10.0 to 2.0 µg/1),
molybdenum (from 100.0 to 10.0 µg/1) nickel (from 10 to 5.0 µg/1)
• Please include a Revision History Section
o As part of the local limits assessment, please provide all spreadsheets of the submitted
Headworks Analysis (HWA). Please make sure to include the latest NPDES effluent
limits, water quality standards (WQS), removal rates, uncontrolled data, and any other
recent LTMP data collected.
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.
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DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
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.
If you have questions concerning this draft permit, please contact me at [phone] or by email at
[e-mail].
Sincerely,
w1 "ry
DocuSigned by:
t
-C464531431644FE...
for Richard E. Rogers Jr., Director
Division of Water Resources, NCDEQ
Hardcopy: NPDES Files
Ecopy: US EPA Region 4
City of Morganton/ Sandy Sally W
Catawba RPCF Pretreatment/ Tim Arney
DWR/Asheville Regional Office/ Water Quality/ Stephanie Williams and Tim Heim
DWR/Municipal Permitting Unit/ Keyes McGee
DWR/Aquatic Toxicology Branch/ Zach Thomas and Cindy Moore
DWR/Public Water Supply/ Kimberly Barnett and Nicole Hairston
DWR/Operator Certification Program/ Maureen Kinney
SELC and Catawba Riverkeeper Foundation/ Alyson Merlin
Page 4 of 4

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERIVIIT
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
City of Morganton
is hereby authorized to discharge wastewater from a facility located at the
Catawba River Pollution Control Facility
1000 Vine Arden Road, Morganton, NC 28655
Burke County
to receiving waters designated as the Catawba River in the Catawba River Basin, in accordance with effluent
limitations, monitoring requirements, and other applicable conditions set forth in Parts I, II, III, and IV hereof.
This permit shall become effective: September 1, 2022.
This permit and authorization to discharge shall expire at midnight on February 28, 2027.
Signed this day: July 28, 2022.
�gDo'c�ulSigened bJyy:� �1,, �n,'' A
Iv-idk. d Y� ,61/ 0"d b
C464531431644FE..
for Richard E. Rogers Jr., Director
Division of Water Resources
By Authority of the Environmental Management Commission

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
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.
The City of Morganton is hereby authorized to:
1. Continue to operate an 8.0 MGD capacity wastewater treatment facility with an approved authorization
to discharge 8.0 MGD with the following components:
• Influent pumps
• Mechanical bar screen
• Wet well
• Grit removal structure (cyclone degritter)
• Two primary clarifiers
• Three equalization basins
• Three aeration basins
• Four secondary clarifiers
• Chlorine contact basin and dechlorination structure
• Sludge holding tank
• Dewatering centrifuge structure
• Aerobic digestors
• Composting site
• Back-up power (diesel generator)
2. Discharge treated wastewater from the Facility into the Catawba River, classified as WS-IV and critical
area (CA), in the Catawba River Basin, through outfall 001. The outfall location is specified on the attached
map.
3. Operate the Facility to treat up to 10.5 MGD after receiving an Authorization to Construct (AtC) from the
Division and submitting an engineering certification confirming compliance with the 10.5 MGD flow tier
limitation page once the effluent limits page is in effect.
4. Operate the Facility to treat up to 13.0 MGD after receiving an AtC from the Division and submitting an
engineering certification confirming compliance with the 13.0 MGD flow tier limitation page once the
effluent limits page is in effect.
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DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
PART I
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (8.0 MGD) —
OUTFALL 001 [15A NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water Pollution
Control System [15A NCAC 08G .0302]
a) Beginning on the effective date of this permit and lasting until expiration or until the Facility submits an
engineering certification confirming compliance with the 10.5 MGD flow tier limitation page, the
Permittee is authorized to discharge from outfall 001, treated municipal wastewater. Such discharges
shall be limited and monitored' by the Permittee as specified below:
PARAMETER
Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow
50050
8.0 MGD
Continuous
Recording
I or E
BOD5 (20°C) 3
C0310
30.0 mg/L
45.0 mg/L
Daily
Composite
I and E
Total Suspended Solids3
C0530
30.0 mg/L
45.0 mg/L
Daily
Composite
I and E
Ammonia (NH3 as N)
C0610
8.4 mg/L
25.3 mg/L
Daily
Composite
E
Fecal Coliform
(Geometric Mean)
31616
200/100 mL
400/100 mL
Daily
Grab
E
pH
00400
Between 6.0 and 9.0 standard units
Daily
Grab
E
Dissolved Oxygen
00300
Daily Average > 5 mg/L
Daily
Grab
E
Dissolved Organic
Carbon
00681
Monitor and Report, µg/L
Quarterly
Grab
E
Total Residual Chlorine
(TRC) °
50060
28.0 µg/L
Daily
Grab
E
Temperature
00010
Monitor and Report °C
Daily
Grab
E
Conductivity
00094
Monitor and Report, µmho/cm
Daily
Grab
E
Total Hardness5 [as
CaCO3]
00900
Monitor and Report, mg/L
Quarterly
Composite
E
Total Phosphorus (TP)
C0665
Monitor and Report, mg/L
Monthly
Composite
E
Total Nitrogen 6 (TN)
C0600
Monitor and Report, mg/L
Monthly
Composite
E
Antimony
01097
Monitor and Report, µg/L
Quarterly
Composite
E
Aluminum
01105
Monitor and Report, µg/L
Quarterly
Composite
E
Total Copper?
01042
85.9 µg/L
96.1 µg/L
Monthly
Composite
E
Total Silver
01077
Monitor and Report µg/L
Monthly
Composite
E
PFAS8
various
See Footnote 8
E
Total Hardness [as
CaCO3]
00900
Monitor and Report, mg/L
Quarterly
Grab
U
Conductivity
00094
Monitor and Report, µmho/cm
Variable 9,10
Grab
U and D
Dissolved Oxygen
00300
Monitor and Report, mg/L
Variable 9,10
Grab
U and D
Temperature
00010
Monitor and Report, °C
Variable 9,10
Grab
U and D
Effluent Pollutant
Scanll
NC01
Monitor and Report
Footnote 11
E
Chronic Toxicity12
TGP38
See Footnote 12
Quarterly Composite
E
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using NC DWR's eDMR application
system. See Special Condition A. (7).
2. Sample Location: E — Effluent, I — Influent, U — Upstream about 250 feet of the outfall, D — Downstream at
Huffman Bridge Road about 2.3 miles of the outfall.
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DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
3. The monthly average effluent BOD5 and total suspended solids concentrations shall not exceed 15% of the
respective influent value (85 % removal).
4. The Division shall consider all effluent total residual chlorine values reported below 50 ug/1 to be in
compliance with the permit. However, the Permiee 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 ug/1.
5. Effluent Total Hardness sampling shall be performed in conjunction with testing for hardness -dependent
metals (cadmium, copper, lead, nickel, silver, and zinc). The Permiee shall sample instream hardness
upstream of the Facility's discharge. The sample shall be representative of the hardness in the receiving
stream.
6. For a given wastewater sample, total nitrogen (TN) = TKN + NO3-N + NO2-N, where TKN is total Kjeldahl
nitrogen, and NO3-N and NO2-N are nitrate and nitrite nitrogen, respectively.
7. See Special condition A. (9) Schedule of compliance for copper.
8. Quarterly PFAS effluent monitoring shall commence after EPA has a final wastewater method in 40
CFR136 published in the Federal Register. See Special Condition A. (10.)
9. Variable monitoring frequency is defined as follows: samples collected three times per week during June 1
through September 30 and once per week October 1 through May 31.
10. If the Permiee is a member of a monitoring coalition program, sampling may be waived as long as the
monitoring coalition agrees to sample at a minimum frequency of quarterly, and the Permiee has obtained
approval from DWR-NPDES Permitting Unit that the location being monitored by the Coalition and the
sampling is representative of the receiving stream for this discharge. The Permiee is responsible for
submitting test results with its permit renewal application package. If Coalition membership is canceled or
the Coalition terminates sampling at the approved station, the Permiee will immediately notify the Division
and resume sampling for upstream of its discharge.
11. The Permiee shall perform three Effluent Pollutant Scans during the term of this permit. See Special
Condition A. (6).
12. Chronic Toxicity (Ceriodaphnia) P/F @ 9.5%, January, April, July, October. See Special Condition A. (4).
There shall be no discharge of floating solids or visible foam other than trace amounts.
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DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (10.5 MGD) [15A
NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water Pollution Control System [15A NCAC
08G .0302]
a) Beginning when the Facility submits an engineering certification confirming compliance with the 10.5 MGD
flow tier limitation page and until the Facility submits an engineering certification confirming compliance
with the 13.0 MGD flow tier or expiration, the Permittee is authorized to discharge from outfall 001, treated
municipal wastewater. Such discharges shall be limited and monitored' by the Permittee as specified below:
PARAMETER
Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow
50050
10.5 MGD
Continuous
Recording
I or E
BOD5 (20°C) 3
C0310
18.5 mg/L
27.8 mg/L
Daily
Composite
I and E
Total Suspended Solids3
C0530
30.0 mg/L
45.0 mg/L
Daily
Composite
I and E
Ammonia (NH3 as N)
(Apr. 1— Oct. 31)
C0610
6.6 mg/L
19.8 mg/L
Daily
Composite
E
Ammonia (NH3 as N)
(Nov. 1— Mar. 31)
C0610
13.3 mg/L
35.0 mg/L
Daily
Composite
E
Fecal Coliform
(Geometric Mean)
31616
200/100 mL
400/100 mL
Daily
Grab
E
pH
00400
Between 6.0 and 9.0 standard units
Daily
Grab
E
Dissolved Oxygen
00300
Daily Average > 5 mg/L
Daily
Grab
E
Dissolved Organic
Carbon
00681
Monitor and Report, µg/L
Quarterly
Grab
E
Total Residual Chlorine
(TRC) °
50060
28.0 µg/L
Daily
Grab
E
Temperature
00010
Monitor and Report °C
Daily
Grab
E
Conductivity
00094
Monitor and Report, µmho/cm
Daily
Grab
E
Total Hardness5 [as
CaCO3]
00900
Monitor and Report, mg/L
Quarterly
Composite
E
Total Nitrogen 6 (TN)
C0600
Monitor and Report, mg/L
Monthly
Composite
E
Total Phosphorus (TP)
C0665
Monitor and Report, mg/L
Monthly
Composite
E
TN Load7
QY600
Monitor and Report, Ib/yr
Annual
Calculated
E
TP Load7
QY665
Monitor and Report, Ib/yr
Annual
Calculated
E
Aluminum
01105
Monitor and Report, µg/L
Quarterly
Composite
E
Antimony
01097
Monitor and Report, µg/L
Quarterly
Composite
E
Total Copper
01042
68.0, µg/L
76.8, µg/L
Monthly
Composite
E
Total Silver
01077
Monitor and Report, µg/L
Monthly
Composite
E
PFAS8
various
See Footnote 8
E
Total Hardness [as
CaCO3]
00900
Monitor and Report, mg/L
Quarterly
Grab
U
Conductivity
00094
Monitor and Report, µmho/cm
Variable 9,10
Grab
U and D
Dissolved Oxygen
00300
Monitor and Report, mg/L
Variable 9,10
Grab
U and D
Temperature
00010
Monitor and Report, °C
Variable 9,10
Grab
U and D
Effluent Pollutant
Scanll
NC01
Monitor and Report
Footnote 11
E
Chronic Toxicity12
TGP38
See Footnote 12
Quarterly Composite
E
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using NC DWR's eDMR application system.
See Special Condition A. (7).
2. Sample Location: E — Effluent, I — Influent, U — Upstream about 250 feet West of the outfall, D — Downstream at
Huffman Bridge Road about 2.3 miles NE of the outfall.
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DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
3. The monthly average effluent BOD5 and total suspended solids concentrations shall not exceed 15% of the respective
influent value (85 % removal).
4. The Division shall consider all effluent total residual chlorine values reported below 50 ug/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 ug/1.
5. Effluent Total Hardness sampling shall be performed in conjunction with testing for hardness -dependent metals
(cadmium, copper, lead, nickel, silver, and zinc). The Permittee shall sample instream hardness upstream of the
Facility's discharge. The sample shall be representative of the hardness in the receiving stream.
6. For a given wastewater sample, total nitrogen (TN) = TKN + NO3-N + NO2-N, where TKN is total Kjeldahl nitrogen,
and NO3-N and NO2-N are nitrate and nitrite nitrogen, respectively.
7. TN (or TP) Load is the mass quantity of Total Nitrogen (or Total Phosphorus) discharged in a given period of time. See
Special Condition A. (5.), Calculation of Nutrient Loads. Total Nitrogen (TN) load limits and Total Phosphorus (TP)
load limits are annual limits and apply on a calendar year basis.
8. Quarterly PFAS effluent monitoring shall commence after EPA has a final wastewater method in 40 CFR136 published
in the Federal Register. See Special Condition A. (10.)
9. Variable monitoring frequency is defined as follows- samples collected three times per week during June 1 through
September 30 and once per week October 1 through May 31.
10. If the Permittee is a member of a monitoring coalition program, sampling may be waived as long as the monitoring
coalition agrees to sample at a minimum frequency of quarterly, and the Permittee has obtained approval from DWR-
NPDES Permitting Unit that the location being monitored by the Coalition and the sampling is representative of the
receiving stream for this discharge. The Permittee is responsible for submitting test results with its permit renewal
application package. If Coalition membership is canceled or the Coalition terminates sampling at the approved station,
the Permittee will immediately notify the Division and resume sampling for upstream of its discharge.
11. The Permittee shall perform three Effluent Pollutant Scans during the term of this permit. See Special Condition A. (6).
12. Chronic Toxicity (Ceriodaphnia) P/F @ 12.0%, January, April, July, October. See Special Condition A. (4).
There shall be no discharge of floating solids or visible foam other than trace amounts.
Page 6of15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (13.0 MGD) [15A
NCAC 02B .0400 et seq., 02B .0500 et seq.] Grade IV Biological Water Pollution Control System [15A NCAC
08G .0302]
a) After submitting an Engineering Certificate for expansion to 13.0 MGD and lasting until expiration of the
permit, the Permittee is authorized to discharge from outfall 001, treated municipal wastewater. Such
discharges shall be limited and monitored' by the Permittee as specified below:
PARAMETER
Code
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
Sample
Location2
Flow
50050
13.0 MGD
Continuous
Recording
I or E
Total Monthly Flow
82220
Monitor and Report, MG
Continuous
Calculated
I or E
BOD5 (20°C) 3
C0310
15.0 mg/L
22.5 mg/L
Daily
Composite
I and E
Total Suspended Solids3
C0530
30.0 mg/L
45.0 mg/L
Daily
Composite
I and E
Ammonia (NH3 as N)
(Apr. 1— Oct. 31)
C0610
5.6 mg/L
16.8 mg/L
Daily
Composite
E
Ammonia (NH3 as N)
(Nov. 1— Mar. 31)
C0610
11.0 mg/L
33.0 mg/L
Daily
Composite
E
Fecal Coliform
(Geometric Mean)
31616
200/100 mL
400/100 mL
Daily
Grab
E
pH
00400
Between 6.0 and 9.0 standard units
Daily
Grab
E
Dissolved Oxygen
00300
Daily Average > 5 mg/L
Daily
Grab
E
Dissolved Organic
Carbon
00681
Monitor and Report, µg/L
Quarterly
Grab
E
Total Residual Chlorine
(TRC) 4
50060
28 µg/L
Daily
Grab
E
Temperature
00010
Monitor and Report °C
Daily
Grab
E
Conductivity
00094
Monitor and Report, µmho/cm
Daily
Grab
E
TKN
00625
Monitor and Report, mg/L
Weekly
Composite
E
NO2 —N + NO3—N
00630
Monitor and Report, mg/L
Weekly
Composite
E
Total Hardness5 [as
CaCO3]
00900
Monitor and Report, mg/L
Quarterly
Composite
E
Total Nitrogen 6 (TN)
C0600
Monitor and Report, mg/L
Weekly
Composite
E
Total Phosphorus (TP)
C0665
Monitor and Report, mg/L
Weekly
Composite
E
TN Load7
QY600
146,659 lb/year
Annual
Calculated
E
TP Load7
QY665
33,200 lb/year
Annual
Calculated
E
Aluminum
01105
Monitor and Report, µg/L
Quarterly
Composite
E
Antimony
01097
Monitor and Report, µg/L
Quarterly
Composite
E
Total Copper
01042
57.0, µg/L
64.9, µg/L
Monthly
Composite
E
Total Silver
01077
Monitor and Report, µg/L
Monthly
Composite
E
Selenium
01147
Monitor and Report, µg/L
Quarterly
Composite
E
PFAS8
various
See Footnote 8
E
Total Hardness [as
CaCO3]
00900
Monitor and Report, mg/L
Quarterly
Grab
U
Conductivity
00094
Monitor and Report, µmho/cm
Variable 9,1°
Grab
U and D
Dissolved Oxygen
00300
Monitor and Report, mg/L
Variable 9' 10
Grab
U and D
Temperature
00010
Monitor and Report, °C
Variable 9, 10
Grab
U and D
Effluent Pollutant
Scanll
NC01
Monitor and Report
Footnote 11
E
Chronic Toxicity12
TGP3B
See Footnote 12
Quarterly Composite
E
Page 7 of 15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using NC DWR's eDMR application system.
See Special Condition A. (7).
2. Sample Location: E — Effluent, I — Influent, U — Upstream about 250 feet West of the outfall, D — Downstream at
Huffman Bridge Road about 2.3 miles NE of the outfall.
3. The monthly average effluent BOD5 and total suspended solids concentrations shall not exceed 15% of the respective
influent value (85 % removal).
4. The Division shall consider all effluent total residual chlorine values reported below 50 ug/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 ug/1.
5. Effluent Total Hardness sampling shall be performed in conjunction with testing for hardness -dependent metals
(cadmium, copper, lead, nickel, silver, and zinc). The Permittee shall sample instream hardness upstream of the
Facility's discharge. The sample shall be representative of the hardness in the receiving stream.
6. For a given wastewater sample, total nitrogen (TN) = TKN + NO3-N + NO2-N, where TKN is total Kjeldahl nitrogen,
and NO3-N and NO2-N are nitrate and nitrite nitrogen, respectively.
7. TN (or TP) Load is the mass quantity of Total Nitrogen (or Total Phosphorus) discharged in a given period of time. See
Special Condition A. (5.), Calculation of Nutrient Loads. Total Nitrogen (TN) load limits and Total Phosphorus (TP)
load limits are annual limits and apply on a calendar year basis.
8. Quarterly PFAS effluent monitoring shall commence after EPA has a final wastewater method in 40 CFR136 published
in the Federal Register. See Special Condition A. (10.)
9. Variable monitoring frequency is defined as follows- samples collected three times per week during June 1 through
September 30 and once per week October 1 through May 31.
10. If the Permittee is a member of a monitoring coalition program, sampling may be waived as long as the monitoring
coalition agrees to sample at a minimum frequency of quarterly, and the Permittee has obtained approval from DWR-
NPDES Permitting Unit that the location being monitored by the Coalition and the sampling is representative of the
receiving stream for this discharge. The Permittee is responsible for submitting test results with its permit renewal
application package. If Coalition membership is canceled or the Coalition terminates sampling at the approved station,
the Permittee will immediately notify the Division and resume sampling for upstream of its discharge.
11. The Permittee shall perform three Effluent Pollutant Scans during the term of this permit. See Special Condition A. (6).
12. Chronic Toxicity (Ceriodaphnia) P/F @ 14.5%, January, April, July, October. See Special Condition A. (4).
There shall be no discharge of floating solids or visible foam other than trace amounts.
Page 8of15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
A. (4.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY) [15A NCAC 02B.0200 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 9.5% at 8.0 MGD, 12.0% at 10.5 MGD, and 14.5% at
13.0 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, October.
Effluent sampling for this testing 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:
Attention: 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].
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 9of15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
A. (5.) CALCULATION OF TOTAL NITROGEN AND TOTAL PHOSPHORUS LOADS [G.S. 143-
215.1(B)]
Total Nitrogen (TN) load limits and total phosphorous (TP) load limits are annual limits and apply on a calendar
year basis for the 7.5 MGD and 10.5 MGD flow tiers.
(a.) The Permittee shall calculate annual TN/TP loads as follows:
(i.) Monthly TN (or TP) Load (lb/mo) = TN (or TP) x TMF x 8.34
where:
TN or TP =
TMF
8.34
the average Total Nitrogen or Total Phosphorus concentration (mg/L) of
the composite samples collected during the month
the Total Monthly Flow of wastewater discharged during the month
(MG/mo)
conversion factor, from (mg/L x MG) to pounds
(ii.) Annual TN (or TP) Load (lb/yr) = Sum of the 12 Monthly TN (or TP) Loads for the calendar
year
(b.) The Permittee shall report monthly Total Nitrogen and Total Phosphorus results (mg/L and lb/mo) in the
appropriate discharge monitoring report for each month and shall report each calendar year's results (lb/yr)
with the December report for that year.
A. (6.) EFFLUENT POLLUTANT SCAN [G.S. 143-215.1(B)]
a) 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. Samples should be collected with
one quarterly toxicity test each year and must 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)
Chlorine (total residual, TRC)
Dissolved oxygen
Nitrate / Nitrite
Kjeldahl nitrogen
Oil and grease
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:
C0610
50060
00300
00630
00625
00556
C0665
70295
00900
01097
01002
01012
01027
C0034
01042
01051
COMER
01067
01147
01077
01059
01092
00720
32730
Trans-1,2-dichloroethylene
1,1-dichloroethylene
1,2-dichloropropane
1,3-dichloropropylene
Ethylbenzene
Methyl bromide
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:
P-chloro-m-cresol
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Page 10of15
34546 Bis (2-chloroethyl) ether 34273
34501 Bis (2-chloroisopropyl) ether 34283
C0541 Bis (2-ethylhexyl) phthalate CO100
77163 4-bromophenyl phenyl ether 34636
34371 Butyl benzyl phthalate 34292
34413 2-chloronaphthalene 34581
34418 4-chlorophenyl phenyl ether 34641
34423 Chrysene 34320
81549 Di-n-butyl phthalate 39110
34475 Di-n-octyl phthalate 34596
34010 Dibenzo(a,h)anthracene 34556
34506 1,2-dichlorobenzene 34536
34511 1,3-dichlorobenzene 34566
39180 1,4-dichlorobenzene 34571
39175 3,3-dichlorobenzidine 34631
Diethyl phthalate 34336
34452 Dimethyl phthalate 34341
34586 2,4-dinitrotoluene 34611
34601 2,6-dinitrotoluene C0626
34606 1,2-diphenylhydrazine 34346
34657 Fluoranthene C0376
34616 Fluorene 34381
34591 Hexachlorobenzene C0700
34646 Hexachlorobutadiene C0702
39032 Hexachlorocyclo-pentadiene 34386

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
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
b) Reporting. Test results shall be reported electronically using the Division's eDMR system or on DWR
Form DMR-PPA-1(or on a form approved by the Director) by December 31St of each designated sampling
year.
c) 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 utilizing the DWR Form submit to the following
address:
NC DEQ / DWR / NPDES 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
d) Additional Toxicity Testing Requirements for Municipal Permit Renewal. Please note that Municipal
facilities that are subject to the Effluent Pollutant Scan requirements listed above are also subject to
additional toxicity testing requirements specified in Federal Regulation 40 CFR 122.21(j)(5). The US
EPA requires four (4) toxicity tests for a test organism other than the test species currently required in
this permit. The multiple species tests should be conducted either quarterly for a 12-month period prior
to submittal of the permit renewal application, or four tests performed at least annually in the four- and
one-half year period prior to the application. Samples must represent seasonal variation [i.e., do not
sample in the same quarter every year]. These tests shall be performed for acute or chronic toxicity,
whichever is specified in this permit. The multiple species toxicity test results shall be filed with the
Aquatic Toxicology Branch at 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].
Contact the Division's Aquatic Toxicology Branch at 919-743-8401 for guidance on conducting the
additional toxicity tests and reporting requirements. Results should also be summarized in Part E
(Toxicity Testing Data) of EPA Municipal Application Form 2A, when submitting the permit renewal
application to the NPDES Permitting Unit.
Page 11 of 15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
A. (7.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
IG.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)1
The Permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted monthly electronically using eDMR. The eDMR system allows permitted facilities to
enter monitoring data and submit DMRs electronically using the internet. The eDMR system may
be accessed at: https://deq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the
facility being physically located in an area where less than 10 percent of the households have
broadband access, then a temporary waiver from the NPDES electronic reporting requirements
may be granted and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1,
2, 3) or alternative forms approved by the Director. Duplicate signed copies shall be submitted to
the following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
See "How to Request a Waiver from Electronic Reporting" section below.
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.
NPDES Electronic Reporting Rule — Phase 2 Extension. EPA extended the Phase 2 deadline to December 21,
2025. The current compliance date, effective January 4, 2021, was extended as a final regulation change
published in the November 2, 2020 Federal Register.
Starting on December 21, 2025, the Permittee must electronically report the following compliance monitoring
data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
Page 12 of 15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
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.
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:
Page 13 of 15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
I cert, 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].
Map will be added here once doc is in pdf.
A. (8.) MERCURY MINIMIZATION PLAN (MMP) [G.S. 143-215.1(B)]
The Permittee shall continue implementing the mercury minimization plan during this permit term.
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. (9.) SCHEDULE OF COMPLIANCE FOR COPPER [NCGS 143-215.1 (b)]
1. On September 1, 2023, within one (1) year of the permit effective date, the Permittee shall submit to
the Division a Corrective Action Plan (CAP) for Division approval (which could include a pretreatment
local limit assessment), summarizing the strategy or actions to be taken to achieve compliance with the
copper limitations listed in Section A. (1.). This plan will include specific dates for the completion or
implementation of each action.
2. On September 1, 2024, within two (2) years of the permit effective date, the Permittee shall submit to
the Division a summary of actions taken towards achieving compliance with the copper limitations
specified in Section A. (1.).
3. The Permittee shall achieve compliance with copper limitations specified in Section A. (1.) by
September 1, 2025, within three (3) years of the permit effective date.
4. Alternatively, the Permittee may request this Schedule of Compliance be removed, and the copper
limitations specified in Section A. (1.) be placed into effect.
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 in excess of four months
will be subject to public notice.
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
NPDES Municipal Permitting Unit — NPDES and Pretreatment File
1617 Mail Service Center
Raleigh, NC 27699-1617
Page 14 of 15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Permit NC0026573
NCDEQ / Division of Water Resources
Asheville Regional Office
2090 U.S. 70 Highway
Swannanoa, NC 28778-8211
A. (10.) PFAS MONITORING REQUIREMENT INCGS 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 15 of 15

DocuSign Envelope ID: 74327213-A110-4E44-939C-0D3395BD9924
Catawba River Pollution Control Facility — NCOO26573
City of Morganton - Burke County
Outfall Latitude: 35° 46' 42.8" N Basin: Catawba River Basin
Outfall Longitude: 81° 39' 33.5" W Sub -Basin: 03--08-31
Quad #: D 12 SW (Morganton -North) HUC: 03050101
Stream Class: WS-IV CA
Receiving Stream: Catawba River
Permitted Flow: 8.0, 10.5 and 13.0 MGD
Facility
L Location
441,
North
Lat: 35° 46' 34.7" N Long:: 81° 39' 48.7" W