NC0004464_Draft Permit_20230829

ROY COOPER g 4�/ ?
Governor \fit
ELIZABETH S.BISER
Secretary *� '��
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
August 29,2023
D. Marche Pittman
County Manager
P.O.Box 308
Columbus,NC 28722-0308
Subject: Draft NPDES Permit NC0004464
Woodland Mills WWTP
Class WW-2 Biological WPCS
Polk 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:
> Total Mercury monitoring has been deleted.
➢ Electronic data submission requirements have been updated.
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 Polk 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
[e-mail].
Si ncerei y,
' / )7
Environmental Specialist I I
NPDES Compliance and Expedited Permitting
lia of Envm Q Divs
�D � 512North NortCaroh SalisbunDepartment ry Street 1617 Mailiron Service CenterualityI Raleighisionof,NorthWater CarolinaResource 27699-1617
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Permit NC0004464
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,
Polk County
is hereby authorized to discharge domestic wastewater from a facility located at the
Woodland Mills WWTP
4021 NC Highway 108
Mill Spring
Polk County
to receiving waters designated as the South Branch in the Broad 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 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
pyres
Richard . Rogers,
Jr.,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NC0004464
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.
Polk County is hereby authorized to:
1. Continue to operate an existing 0.015 MGD extended aeration wastewater treatment facility that
includes the following components:
➢ Aeration
➢ Clarifier
> Skimming
➢ Sludge return
➢ Chlorine disinfection
➢ Tablet dechlorination
The facility is located at the Woodland Mills WWTP (4021 NC Highway 108)near Mill Spring in
Polk County.
2. Discharge from said treatment works at the location specified on the attached map into South
Branch, currently classified C waters in sub-basin 03-08-02 of the Broad River Basin.
Page 2 of 6

Permit NC0004464
Part I
Grade WW-2 Water Pollution Control System [15A NCAC 08G.0302]
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning on the effective date of the permit and lasting until expiration,the Permittee is
authorized to discharge treated domestic wastewater from outfall 001. Such discharges shall be limited and
monitored' by the Permittee as specified below:
PARAMETER LIMITS MONITORING REQUIREMENTS
Monthly Weekly Measurement Sample
eDMR Code Average Average Frequency Type Sample Location
Flow 0.015 MGD Continuous Recording Influent or Effluent
50050
BOD, 5-day, 20°C2 30.0 mg/L 45.0 mg/L Weekly Grab Influent&Effluent
C0310
Total Suspended Solids2 30.0 mg/L 45.0 mg/L Weekly Grab Influent&Effluent
C0530
Fecal Coliform(geometric mean) 200/100 ml 400/100 ml Weekly Grab Effluent
31616
NH3 as N—C0610 12.0 mg/L 35.0 mg/L Weekly Grab Effluent
(April 1 —October 31)
NH3 as N—C0610 33.0 mg/L 35.0 mg/L Weekly Grab Effluent
(November 1 —March 31)
Total Residual Chlorine(TRC)3 28 pg/L Daily Maximum 2/Week Grab Effluent
50060
pH >6.0 and<9.0 standard units Weekly Grab Effluent
00300 Temperature Daily Grab Effluent
00010
Footnotes:
1. The permittee shall submit discharge monitoring reports electronically using the Division's eDMR system
[see A.(2)].
2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15%of the
respective influent value(85% removal).
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.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.
Page 3 of 6

Permit NC0004464
A. (2) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[NCGS 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports(DMRs)and program reports.
The final NPDES Electronic Reporting Rule was adopted and became effective on December 21,2015.
NOTE: This special condition supplements or supersedes the following sections within Part 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)l
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://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.
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.
Page 4 of 6

Permit NC0004464
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(1X9),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)l
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
Page 5 of 6

Permit NC0004464
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 certj, 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. lam 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].
Page 6 of 6

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NC0004464 - Woodland Mills WWTP I Facility
Add!"
Latitude: 35° 17'24" N USGS Quad: Mill Spring,N.C. Location
Longitude: 82° 10'04" W
Stream Class: C Sub-Basin: 03-08-02
Receiving Stream: South Branch o_.1/Z Polk County
•J�(�1�� Map not to scale