NC0074756_Draft Permit_20240906

M STAT,-
o
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
RICHARD E. ROGERS, JR.
NORTH CAROLINA
Director
Environmental Quality
September 3, 2024
Duane Wingo, Utilities Director
Stanly County Utilities/Greater Badin Water & Sewer District
1000 North 1 st Street, Suite 12,
Albemarle, NC 28001
Subject: Draft NPDES Permit NCO074756
Greater Badin WWTP
Grade III Biological WPCS
Stanly County
Dear Permittee:
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 IWC in A. (2) based on the designated permitted flow on the effluent table in Part I
Section A. (1).
➢ Fluoride monitoring requirements have been removed from Outfall 001 in Part I Section A (1).
Effluent Fluoride data submitted during this permit cycle indicate there is no reasonable potential
for fluoride to exceed freshwater water quality standards.
➢ Zinc and Copper Monitoring requirements have been added to the effluent table for Outfall 001
in Part I Section A. (1) with a corresponding footnote. Monitoring will be required for one year
after the effective date of the permit due to the presence of these parameters in the Effluent
Pollutant Scan during the last permit cycle. Collection of data for these parameters will allow us
to determine if reasonable potential exists for these parameters to violate water quality standards.
➢ Winter NH3 limits have been updated. Per 15A NCAC 02B.0404, the Winter limit for a
parameter cannot be greater than 2x the Summer limit. The revised Winter NH3 limits take
effect 1 / 1 /2029.
➢ Section A. (2) has been updated to be consistent with current WET testing requirements at
Outfall 001.
➢ Section A. (3) has been updated.
➢ Updated years for Effluent Pollutant Scan in Part I Section A. (4).
➢ Reporting for Total Nitrogen (TN) now includes the constituent parameters used in calculating
TN. Total Kjeldahl Nitrogen (TKN) and Nitrate + Nitrite Nitrogen (NO3-N + NO2-N) have been
added to the effluent table in Section A. (1) with a corresponding footnote. The sample type for
Total Nitrogen has been updated from "Composite" to "Calculated".
➢ Added parameter units to the effluent table in Part I. Section A. (1.).
➢ Updated the permit map.
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
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
NORTH CAROLINA 919.707.9000
DeperlmeM ut Emlmnwiftl Duali�

Page 2 of 2
NPDES Permit NCO074756
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 Stanly 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.
If you have questions concerning the draft, please contact me at caroline.robinsonkdeq.nc.gov.
Sincerely,
Environmental Specialist II
NPDES Compliance and Expedited Permitting
cc: NPDES Files
Mooresville Regional Office
Aquatic Toxicology Branch
Operator Certification Program
Public Water Supply

NPDES Permit NCO074756
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
N( PDES)
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,
Stanly County Utilities/Greater Badin Water & Sewer District
is hereby authorized to discharge wastewater from a facility located at the
Greater Badin WWTP
18 Sewer Plant Road
Badin
Stanly County
to receiving waters designated as Little Mountain Creek in the Yadkin Pee -Dee River Basin, in
accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I,
II, III, and IV hereof.
This permit shall become effective
This permit and authorization to discharge shall expire at midnight on July 31, 2029.
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 February 1, 2029 (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 9

NPDES Permit NCO074756
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.
Stanly County Utilities/Greater Badin Water & Sewer District
is hereby authorized to:
1) Continue operation of a 0.55 MGD existing wastewater treatment system, consisting of the
following:
• Manually cleaned bar screen
• Influent pump station
• Oxidation ditch
• Aerobic sludge digester
• Dual final clarifiers
• Dual chlorine contact chambers with gaseous disinfection
• Dechlorination
• Cascade post -aeration
• Four sludge drying beds
• Stand-by power
This facility is located at the Greater Badin WWTP, 18 Sewer Plant Road, Badin, in Stanly County.
2) Discharge from said treatment works at the location specified on the attached map, via Outfall 001,
into Little Mountain Creek [Stream Segment: 13-5-1-(2)], a waterbody currently classified as WS-IV
within subbasin 03-07-08 [HUC: 030401040201] in the Yadkin Pee -Dee River Basin.
Page 2 of 9

NPDES Permit NCO074756
PART I
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0200 et seq., 02B .0500 et seq.]
Grade III Biological WPCS [15A NCAC 08G .0302]
During the period beginning on the effective date of this permit and lasting until expiration, the
Permittee is authorized to discharge from Outfall 001. Such discharges shall be limited and monitoredl
by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS
CHARACTERISTICS
Monthly
Weekly
Daily
Measurement
Sample
Sample
Parameter Code
Average
Average
Maximum
Frequency
Type
Location'
Flow3 MGD 50050
0.55 MGD
Continuous
Recording
I or E
BOD, 5-day, 20°C4 C0310
20.0 mg/L
30.0 mg/L
3/Week
Composite
I & E
Total Suspend d Solids C0530
30.0 mg/L
45.0 mg/L
3/Week
Composite
I & E
NH3 as N C0610
1.2 mg/L
3.6 mg/L
3/Week
Composite
E
(April 1 — October 31
NH3 as N C0610
3.0 mg/L
9.0 mg/L
3/Week
Composite
E
(November 1 — March 31
NH3 as N 5 C0610
(November 1 — March 31
2.4 mg/L
7.2 mg/L
3/Week
Composite
E
Fecal Coliform 31616
200/100 ml
400/100 ml
3/Week
Grab
E
(geometric mean
Total Residual Chlorine 6 50060
20 /L
3/Week
Grab
E
H 00400
> 6.0 and < 9.0 standard units
3/Week
Grab
E
Temperature °C 00010
Monitor & Report
Daily
Grab
E
Temperature (°C) 00010
Monitor & Report
3/Week
Grab
U,D
Dissolved Oxygen 00300
Daily Average > 5.0 mg/L
3/Week
Grab
E
Dissolved Oxygen (mg/L) 00300
Monitor & Re ort
3/Week
Grab
U,D
Mercury COMER
14.38 n /L
Monthly
Composite
E
Zinc /L ' 01092
Monitor & Report
Quarterly
Composite
E
Copper /L ' 01042
Monitor & Report
Quarterly
Composite
E
TKN (mg/L)8 00625
Monitor & Report
Quarterly
Composite
E
NO3-N + NO2-N (mg/L)8 00630
Monitor & Report
Quarterly
Composite
E
Total Nitrogen (mg/L)'
C0600
Monitor & Report
Quarterly
Calculated
E
02 + NO3 + TKN
Total Nitrogen (mg/L) C0600
Monitor & Report
Quarterly
Grab
U,D
02 + NO3 + TKN
Total Phosphorus (mg/L) C0665
Monitor & Report
Quarterly
Composite
E
Total Phosphorus (mg/L) C0665
Monitor & Report
Quarterly
Grab
U,D
Chronic Toxicity' TGP3B
Monitor & Report
Quarterly
Composite
E
See Footnote
See
Effluent Pollutant Scan NCO]
Monitor & Report
Footnote
E
10
10
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see Section A. (3)].
Page 3 of 9

NPDES Permit NCO074756
2. Sample locations: E-Effluent; I -Influent; U-Upstream 50 feet above the outfall; D-2.8 miles below the outfall
at the mouth of Little Mountain Creek. Instream monitoring is provisionally waived in light of the permittee's
participation in the Yadkin Pee Dee River Basin Association.
3. The facility shall report on a monthly basis flow entering the collection system from the Alcoa / Basin
Landfill near Wood Street. This flow measurement shall be submitted with facility December DMR as a
separate inflow to the treatment plant in million gallons per month.
4. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15% of the
respective influent value (85% removal).
5. Per 15A NCAC 0213.0404, Winter limits cannot be more than 2x the Summer limit for seasonally -limited
parameters. These new Winter NH3 limits will take effect 1/l/2029.
6. The Division shall consider all effluent TRC 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/l.
7. Zinc and Copper Monitoring is required for one year after the effective date of the permit due to the presence
of these parameters in the Effluent Pollutant Scan during the last permit cycle.
8. 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.
9. Chronic toxicity (Ceriodaphnia dubia) 7-day pass/fail test at 76.6% during the months of January, April,
July, and October. See Section A. (2).
10. See Section A. (4) for monitored parameters and monitoring frequency.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A. (2) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
[15A NCAC 02B .0200 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 76.6%.
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 THP311 for the Chronic Value. Additionally, DWR Form AT-3
(original) is to be sent to the following address:
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NPDES Permit NCO074756
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.ATB(adeq.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.
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.
A. (3) ELECTRONIC REPORTING OF MONITORING REPORTS
[NCGS 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December
21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
Page 5 of 9

NPDES Permit NC0074756
• 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 electronically using eDMR. The eDMR system allows permitted facilities to enter
monitoring data and submit DMRs electronically using the internet. The eDMR system may be
accessed at: https:Hdeq.nc.gov/about/divisions/water-resources/edmr.
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband
access, then a temporary waiver from the NPDES electronic reporting requirements may be granted
and discharge monitoring data may be submitted on paper DMR forms (MR 1, 1. 1, 2, 3) or
alternative forms approved by the Director. Duplicate signed copies shall be submitted to the
following address:
NC DEQ / Division of Water Resources / Water Quality Permitting
Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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
Page 6 of 9

NPDES Permit NC0074756
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: hM2s://www.federalre ig ster.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. Sitnatory Requirements (Supplements Section B. (11.)(b) and Supersedes Section B. (11.)(d)I
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:
Page 7 of 9

NPDES Permit NCO074756
http: //deq.ne. aov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make
the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION
WILL BE ACCEPTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the information,
the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I
am aware that there are significant penalties for submitting false information, including the
possibility of fines and imprisonment for knowing violations. "
5. Records Retention [Supplements Section D. (6.)]
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].
A. (4) EFFLUENT POLLUTANT SCAN
[G. S. 143-215.1(b)]
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: 2025, 2026, and 2027. 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 (EPA Method 1631E)
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
Bis (2-chloroethyl) ether
Bis (2-chloroisopropyl) ether
Bis (2-ethylhexyl) phthalate
4-bromophenyl phenyl ether
Butyl benzyl phthalate
2-chloronaphthalene
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
Page 8 of 9

NPDES Permit NCO074756
Nickel
Selenium
Silver
Thallium
Zinc
Cyanide
Total phenolic compounds
Volatile organic compounds:
Acrolein
Acrylonitrile
Benzene
Bromoform
Carbon tetrachloride
Chlorobenzene
Chlorodibromomethane
Chloroethane
2-chloroethylvinyl ether
Chloroform
Dichlorobromomethane
1, 1 -dichloroethane
1,2-dichloroethane
2-chlorophenol
2,4-dichlorophenol
2,4-dimethylphenol
4,6-dinitro-o-cresol
2,4-dinitrophenol
2-nitrophenol
4-nitrophenol
Pentachlorophenol
Phenol
2,4, 6-trichlorophenol
Base -neutral compounds:
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
3,4 benzofluoranthene
Benzo(ghi)perylene
Benzo(k)fluoranthene
Bis (2-chloroethoxy) methane
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
Reporting. Test results shall be reported on DWQ Form -A MR-PPA1 (or in a form approved by the
Director) by December 31 st of each designated sampling year. The report shall be submitted to the
following address: NC DENR / DWR / Central Files, 1617 Mail Service Center, Raleigh, North
Carolina 27699-1617.
Page 9 of 9

NCO074756 — Greater Badin WWTP
Stanly County Utilities/Greater Badin Water & Sewer District
Receiving Stream: Little Mountain Creek Stream Class: WS-IV
Latitude: 35123155" Longitude: 80°07'20"
Stream Segment: 13-5-1-(2) Subbasin: 03-07-08
River Basin: Yadkin Pee -Dee HUC: 030401040201
Facility
Location
Ar_ _'lam Stanly County
Map not to scale