NC0079740_Draft Permit_20240123

ROY COOPER
Governor
ELIZ.ABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
Director
f+ 4
a
NORTH CAROLINA
Environmental Quality
January 23, 2024
Mr. Rick Duncan, Public Infrastructure Director
City of Kings Mountain
PO Box 429
Kings Mountain, NC 28086
Subject:
Dear Permittee:
Draft NPDES Permit NCO079740
T.J. Ellison Water Treatment Plant
Grade I Physical Chemical WPCS
Cleveland County
The Division has reviewed your request to renew the subject permit. Enclosed with this letter is a copy
of the draft permit for your facility. Please review this draft carefully to ensure your thorough
understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
➢ Updated the maximum, monthly average wastewater discharge on the Supplement to Permit
Cover Sheet
➢ Added the chemical usage list at the water treatment plant to the Supplement to Permit Cover
Sheet
➢ The effluent concentration has been updated to 1.70% for Whole Effluent Toxicity testing in
Sections A. (1) and A. (2).
➢ Whole Effluent Toxicity testing has been changed from monitoring to a Pass/Fail limit per the
updated permitting strategy for water treatment plants. Section A. (1) and Section A. (2) have
been updated accordingly.
➢ Updated eDMR language for electronic data submission in Part I. A. (3)
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.
With this notification, the Division will solicit public comment on this draft permit by publishing a
notice in newspapers having circulation in the general Cleveland County area, per EPA requirements.
Please provide your comments, if any, to me at the e-mail address below no later than 30 days
after receiving 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.
North Carolina Department of Environmental Quality I Division of Water Resources
D E Q 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
noATHrnaoi.iva 919.707.9000
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Page 2 of 2
NPDES Permit NC0079740
If you have questions concerning the draft, please contact me at carol ine.robinson2deq.nc. og_v.
Sincerely,
Environmental Specialist II
NPDES Compliance and Expedited Permitting
cc: NPDES Files
Mooresville Regional Office
Aquatic Toxicology Unit

NPDES Permit NCO079740
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
City of Kings Mountain
is hereby authorized to discharge treated wastewater from a facility at the
T.J. Ellison WTP
1432 Oak Grove Road
Kings Mountain
Cleveland County
to receiving waters designated as Buffalo Creek, within the Broad River Basin, in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV
hereof.
The permit shall become effective
This permit and the authorization to discharge shall expire at midnight on August 31, 2028.
If the permittee intends to continue to discharge at the facility beyond the term of this permit, a renewal
application must be submitted no later than March 4, 2028 (180 days before the expiration of this
permit).
Signed this day
John E. Hennessy, Section Chief Regional Operations
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 8

NPDES Permit NCO079740
SUPPLEMENT TO PERMIT COVER SHEET
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this 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 described herein.
City of Kings Mountain is hereby authorized to:
1. Continue to operate a conventional water treatment plant with a discharge of wastewaters from
media filter backwash. This water treatment plant currently has a design potable flow rate of 12
MGD and a maximum, monthly average wastewater discharge of 0.107 MGD. Wastewater treatment
consists of:
• Primary settling tank
• Overflow tank 4f
• Decant well
• Dechlorination unit
• Sludge dewatering system
Chemical usage consists of:
• Alum/Aluminum Sulfate
• Fluoride
• Potassium Permanganate
• Sodium Hydroxide
• Sodium Hypochlorite
• Sodium Thiosulfate
This facility is located at the T.J. Ellison WTP at 1432 Oak Grove Road in Kings Mountain in Cleveland
County.
2. Discharge from said treatment works at the location specified on the attached map via Outfall 001,
into Buffalo Creek [Stream Segment: 9-53-(5)], a waterbody currently classified C within subbasin
03-08-05 [HUC: 030501050804] of the Broad River Basin.
Page 2 of 8

NPDES Permit NCO079740
PART
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[ 15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade I Physical Chemical WPCS [15A NCAC 08G .0306]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge filter backwash via Outfall 001. Such discharges shall be limited
and monitored' by the Permittee as specified below:
EFFLUENT
CHARACTERISTICS
Parameter Codes
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
g
Daily
Maximum
Measurement
Frequency
9 Y
Sample
YP
Type
Sample
2
Location
Flow (MGD) 50050
Monitor & Report
Continuous
Recording
Effluent
Total Suspended Solids C0530
30.0 mg/L
45.0 mg/L
2/month
Grab
Effluent
Total Residual Chlorine 3 50060
28 µg/L
2/month
Grab
Effluent
pH 00400
Not < 6.0 or > 9.0
standard units
2/month
IL Grab
4116
Effluent
Turbidity (NTU) 00070
Monitor & Report
Monthly
b
Effluent
Total Aluminum (µg/L) 01105
Monitor & Report
Quarterly
Grab
Effluent
Total Copper (µg/L) 01042
Monitor & Report
Quarterly
Grab
Effluent
Total Manganese (µg(L) 01055
Monitor & Report
Quarterly
Grab
Effluent
Total Fluoride (µg/L) 00951
Monitor & Report
Quarterly
Grab
Effluent
Total Phosphorous (mg/L) C0665
Monitor & Report
Quarterly
Grab
Effluent
Total Nitrogen (mg/L) C0600
Monitor & Report
Quarterly
Grab
Effluent
Hardness — Total as 00900
CaCO3 or Ca + M a
Monitor & Report
p
Quarterly
Y
Grab
Effluent
Hardness — Total as 00900
CaCO3 or Ca + M s
Monitor & Report
p
1.
Quarterly
Q Y
Grab
Upstream
p
Chronic WET Testing 6 TGP3B
I Pass/Fail
Quarterly
Grab
Effluent
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see Section A. (3)].
2. U = Upstream at least 50 feet upstream from the outfall.
3. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However, the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory (including field certified), even if these values fall below 50 µg/L.
4. Effluent hardness sampling should be performed in conjunction with testing for hardness dependent metals
(cadmium, copper, lead, nickel, silver, and zinc).
5. The Permittee shall sample instream hardness, upstream of the facility's discharge. The sample shall be
representative of the hardness in the receiving stream. If the Permittee is a member of the Monitoring
Coalition Program, sampling for instream hardness may be waived as long as the Monitoring coalition agrees
to sample hardness at the nearest upstream location, at a minimum frequency of quarterly, and the Permittee
has obtained approval from DWR-NPDES Permitting Unit that the upstream station being monitored by the
Coalition is representative of the receiving stream for this discharge. The Permittee is responsible for
Page 3 of 8

NPDES Permit NCO079740
submitting instream hardness test results with its permit renewal application package. If Coalition
membership is cancelled or the Coalition terminates instream hardness sampling at the approved station, the
Permittee will immediately notify the Division and resume sampling for instream hardness, upstream of its
discharge.
6. Whole Effluent Toxicity (WET) testing - Ceriodaphnia dubia shall be performed as 7-day pass/fail test at
1.70% effluent concentration, during January, April, July, and October [See Section A. (2)].
ALL SAMPLES COLLECTED SHOULD BE FROM A REPRESENTATIVE DISCHARGE
EVENT.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR FOAM VISIBLE IN
OTHER THAN TRACE AMOUNTS.
A. (2) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
[15A NCAC 02B .0500 et seq.] [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 1.70%.
The permit holder shall perform at a minimum, nuarterly 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, ATForms.ATBAdeq.nc.gov.
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.
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NPDES Permit NCO079740
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.
Ilk
A. (3) ELECTRONIC REPORTING OF MONITORING REPORTS
[NCGS 143-215.1 (b)] g
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)]
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 electronically using eDMR. The eDMR system allows permitted facilities to enter
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NPDES Permit NCO079740
monitoring data and submit DMRs electronically using the internet. The eDMR system may be
accessed at: https:Hdeq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
following address:
NC DEQ / Division of Water Resources / Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
See "How to Request a Waiver from Electronic Reporting" section below.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
reported via the eDMR system no later than the last calendar day of the month following the
completed reporting period. Regardless of the submission method, the first DMR is due on the last
day of the month following the issuance of the permit or in the case of a new facility, on the last day
of the month following the commencement of discharge.
Starting on December 21, 2025, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
Sewer Overflow/Bypass Event Reports;
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
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NPDES Permit NC0079740
Electronic Reporting Rule is found at: hgps://www.federalregister.gov/documents/2015/10/22/2015-
24954/national-pollutant-discharge-el imination-system-npdes-electronic-reporting-rule
Electronic submissions must start by the dates listed in the "Reporting Requirements" section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to
the Division. Requests for temporary electronic reporting waivers must be submitted in writing to
the Division for written approval at least sixty (60) days prior to the date the facility would be
required under this permit to begin submitting monitoring data and reports. The duration of a
temporary waiver shall not exceed 5 years and shall thereupon expire. At such time, monitoring data
and reports shall be submitted electronically to the Division unless the permittee re -applies for and is
granted a new temporary electronic reporting waiver by the Division. Approved electronic reporting
waivers are not transferrable. Only permittees with an approved reporting waiver request may
submit monitoring data and reports on paper to the Division for the period that the approved
reporting waiver request is effective.
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)]
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/div isions/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:
V certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
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NPDES Permit NCO079740
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.)l
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 8 of 8

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NPDES Permit NCO079740
Receiving Stream: Buffalo Creek Stream Class: C
Stream Segment: 9-53-(5) Sub -Basin #: 03-08-05
River Basin: Broad HUC: 0305010508
County: Cleveland
N
SCALE
1:24,000
Facility Location
scale not shown
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