NC0004464_Draft Permit_20180808

'
., ROY COOPER
ii°r ,a1:•Y Governor
,. ana
,,1.4 MICHAEL S. REGAN
' i, * Secretary
C
�t �; LINDA CULPEP
'' ' _."f. ' /Herrn,DrreuPERor
NZ_ dpi--
NORTH CAROLINA
Environmental Quality
August 8, 2018
Mr.D.M. Pittman
County Manager
P.O.Box 308
Columbus, NC 28722-0308
Subject: Draft NPDES Permit NC0004464
Woodland Mills WWTP
Grade II Biological WPCS
Polk County
Dear Mr. Pittman:
The Division has reviewed your request to renew the subject permit. Please review this draft carefully to
ensure a thorough understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
D Section A. (1)has been updated to include monitoring for Total Mercury. See section A. (2)for
details.
D The permit map has been updated.
> Section A. (3)has been updated.
> Regulatory citations have been added to the permit.
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 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 the telephone number listed at the bottom of this page,or via e-mail [[e-mail]].
Sincerely,
Charles H.Weaver,Jr.
NPDES program
cc: NPDES file
D_
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-3600

' Permit NC0004464
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
' : 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 (unnamed tributary to Little
White Oak Creek) 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.
The permit shall become effective
This permit and the authorization to discharge shall expire at midnight on July 31, 2023.
Signed this day
1/1 P-4
i ' 1
Linda Culpepper, Interim'Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

.
Permit NC0004464
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
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 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
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
PART I
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 Sample Location
eDMR Code ' " • ' Average Average' , Frequency. , ` Type - -
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 6.0-9.0 Standard Units Weekly Grab ' Effluent
00300
Total Mercury4 Monitor&report[ng/L] 1/Permit Grab Effluent
COMER
Temperature Daily Grab Effluent
00010
Footnotes: - -
1• The permittee shall submit discharge monitoring reports electronically using the
Division's eDMR system [see A. (3)]. , ,
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 pg/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 pg/L.
4. See condition A. (2) for mercury analytical requirements. , -
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE
AMOUNTS.
Page 3 of 6

•
Permit NC0004464
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
A. (2) EFFLUENT MERCURY ANALYSIS
[G.S. 143-215.66]
The Permittee shall provide one effluent mercury analysis, using-EPA Method 1631E,
in conjunction with the next permit renewal application. The analysis shall be taken
within 12 months prior to the renewal application due date. Any additional effluent
mercury measurements conducted from the effective date of this permit and up to the
application date shall also be submitted with the renewal application. - - ,
If the result of the mercury analysis is not provided with the application, the
application may be returned as incomplete and the Permittee considered non-
compliant.
A. (3) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G.S. 143-215.1(b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs)
and program reports. The final NPDES Electronic Reporting Rule was adopted and became
effective on December 21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II
of this permit (Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
1. Reporting [Supersedes Section D. (2.) and Section E. (5.) (a)j
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. Until
such time that the state's eDMR application is compliant with EPA's Cross-Media Electronic
Reporting Regulation (CROMERR), permittees will be required to submit all discharge
monitoring data to the state electronically using eDMR and will be required to complete the
eDMR submission by printing, signing, and submitting one signed original and-acopy of the
computer printed eDMR 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
Page 4 of 6

ea
Permit NC0004464
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
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 mailing address above. 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. -
Starting on December 21, 2020, 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 Electronic Reporting Rule is found at: http://www2.epa.gov/compliance/final- .- •
national-pollutant-discharge-elimination-system-npdes-electronic-reporting-rule.
Electronic submissions must start by the dates listed in the "Reporting Requirements"
section above. -
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain
an electronic reporting waiver, a permittee must first submit an electronic reporting waiver
request to the Division. Requests for temporary electronic reporting waivers must be
submitted in writing to the Division for written approval at least sixty (60) days prior to the
date the facility would be required under this permit to begin submitting monitoring data and
reports. The duration of a temporary waiver shall not exceed 5 years and shall thereupon
expire. At such time, monitoring data and reports shall be submitted electronically to the
Division unless the permittee re-applies for and is granted a new temporary electronic
reporting waiver by the Division. Approved electronic reporting waivers are not transferrable.
Only permittees with an approved reporting waiver request may submit monitoring data and
reports on paper to the Division for the period that the approved reporting waiver request is
effective.
Page 5 of 6

Permit NC0004464
Grade II Biological Water Pollution Control System [15A NCAC 08G.0302]
Information on eDMR and the application for a temporary electronic reporting waiver are
found on the following web page:
https://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B.
(11.) (d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in
Part II, Section B. (11.)(a) or by a duly authorized representative of that person as described
in Part II, Section B. (11.)(b). A person, and not a position, must be delegated signatory
authority for eDMR reporting purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR
user account and login credentials to access the eDMR system. For more information on
North Carolina's eDMR system, registering for eDMR and obtaining an eDMR user account,
please visit the following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall
make the following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF
CERTIFICATION WILL BE ACCEPTED:
"I certify, under penalty of law, that this document and all attachments were prepared under
my direction or supervision in accordance with a system designed to assure that qualified
personnel properly gather and evaluate the information submitted. Based on my inquiry of
the person or persons who manage the system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate, and complete. I am aware that there are significant penalties for
submitting false information, including the possibility of fines and imprisonment for knowing
violations."
5. Records Retention [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
Facility
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 Ain& Polk County
•/►�(�lu{� Map not to scale