NC0020486_Draft Permit_20210323

ROY COOPER
Governor
DIONNE DELLI-GATTI f +�^
Secretary r�
S. DANIEL SMITH � , + 111- '
Director _'''
NORTH CAROLINA
Environmental Quality
March 23,2021
Mr.Hurston A.Nicholas,Forest Supervisor
USDA-US Forest Service
160 Zillicoa Street, Suite A
Asheville,NC 28801
Subject: Draft NPDES Permit NC0020486
North Mills River Recreation Area
Henderson County
Grade II Biological WPCS
Dear Permittee:
The Division has reviewed your request to renew the subject permit.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:
• Section A. (2.)has been updated to require electronic submission of effluent data
reports(DMRs). Federal regulations require electronic submittal of all discharge
monitoring.
• An updated outfall map has been included.
With this notification,the Division will solicit public comment on this draft permit by publishing a notice in
newspapers having circulation in the general Davidson 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 any questions concerning this permit,please contact
Emily Phillips at emily.phillips@a,ncdenr.gov.
Sincerely,
DocuSigned byPLairS
8BE53C816460471...
Emily Phillips
Compliance and Expedited Permitting Unit
cc: NPDES files
ec: ARO
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh,NC 27699-1617
919-807-6300 919-807-6389 FAX
hops://deq.nc.gov/about/divisions/water-resources/water-resources-permits/wastewater-branch/npdes-wastewater-permits

Permit NC0020486
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
U.S. Department of Agriculture
(U.S. Forest Service)
is hereby authorized to discharge wastewater from a facility located at the
North Mills River Recreation Area WWTP
NCSR 1345 NW of Mills River
Henderson County
to receiving waters designated as the North Fork Mills River in sub-basin 04-03-03 of the French 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 January 31, 2026.
Signed this day
S. Daniel Smith.,Director
Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 6

Permit NC0020486
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 U.S. Department of Agriculture (U. S. Forest Service)is hereby authorized to:
1. Continue to operate an existing 0.012 MGD dual-train extended aeration package wastewater
treatment system that includes the following components:
• Influent pump station
• 7500-gallon flow equalization basin with manual bar screen
• Dual submersible 30-gpm pumps
• Dual high-water alarms
• 40-cfm blower
• Dual 7500-gallon aeration basins with coarse air diffusers and three 85-scfm blowers
• Dual secondary clarifiers [50 ft2], each with skimmer and air lift sludge return
• Dual tertiary filters [6.25 ft2], each with 40-scfm scour blower
• Clearwell and mudwell
• 4500-gallon aerobic digester with coarse air diffusers
• Tablet chlorine disinfection
• Chlorine contact basin [417 gallons]
• Tablet dechlorination
• Effluent outfall line [225 linear feet of 6" gravity pipe]
The facility is located northwest of Mills River at the North Mills River Recreation Area WWTP off
NCSR 1345 in Henderson County.
2. Discharge from said treatment works at the location specified on the attached map into the North Fork
Mills River, currently classified WS-II; Trout, HQW waters of the French Broad River Basin.
Page 2 of 6

Permit NC0020486
Part I.
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
[15A NCAC 02B.0400 et seq., 15A NCAC 02B.0500 et seq.]
Grade II Biological Water Pollution Control System [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 monitored' by the Permittee as
specified below:
PARAMETER LIMITS MONITORING REQUIREMENTS
[Parameter Code] Monthly Daily Measurement Sample Type Sample
Average Maximum Frequency Location
Flow Influent or
0.012 MGD Weekly Instantaneous
[50050] Effluent
BOD,5-day(20°C) 30.0 mg/L 45.0 mg/L Weekly Grab Effluent
[C0310]
Total Suspended Solids 30.0 mg/L 45.0 mg/L Weekly Grab Effluent
[C0530]
NH3 as N 2/Month Grab Effluent
[C0610]
Fecal Coliform(geometric mean) 200/100 ml 400/100 ml Weekly Grab Effluent
[31616]
Total Residual Chlorine(TRC)2 28 pg/L 2/Week Grab Effluent
[50060]
Temperature(°C) Weekly Grab Effluent
[00010]
pH > 6.0 and <9.0 standard units Weekly Grab Effluent
[00400] —
Footnotes:
1. The Permittee shall submit discharge monitoring reports electronically using the Division's eDMR system [see
A. (2)].
2. The facility shall report all effluent TRC values reported by a NC certified laboratory including field certified.
However, effluent values below 50 µg/L will be treated as zero for compliance purposes.
There shall be no discharge of floating solids or visible foam in other than trace amounts
A. (2.) ELECTRONIC REPORTING- 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):
Page 3 of 6

Permit NC0020486
• 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.) (all
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.
q
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).
Page 4 of 6

Permit NC0020486
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
Page 5 of 6

Permit NC0020486
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. (6.11
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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North Mills River Recreation Area Facility x
Latitude: 35°24' 19" N Sub-Basin: 04-03-03 Location
Longitude: 82°38' 33" W Stream Class: WS-II; Tr, HOW
Receiving Stream: North Fork Mills River
North NC0020486