NC0089532_Draft Permit_20210713

VI
ROY COOPER i ----t')
Governor * _ , (A
ELIZABETH S.BISER
Secretory a°a'"""'°s
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
July 13,2021
Mr. Daniel Manring
Tuckaseigee Water and Sewer Authority
1246 W Main St
Sylva,NC 28779
Subject: DRAFT NPDES PERMIT NC0089532
TWSA#6 WWTP
WWNC [15A NCAC 08G.0302]
Jackson County
Dear Mr. Manring:
Enclosed with this letter is a copy of the draft permit for your facility. Please review the draft very carefully
to ensure thorough understanding of the conditions and requirements it contains.
This draft contains the following changes from the existing permit:
The language in section A. (5.)has been updated to be consistent with current requirements for electronic
reporting of discharge monitoring reports.
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.The latest
version is available at https://bit.ly/2BZ4xxx 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 Jackson 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 via email at[[e-mail]] or call 919-707-9125.
Sincerely,
oee4e,.., 1)812ear_
Emily DelDuco Richards
Environmental Specialist II
NPDES Program
ec: NPDES files
Asheville Regional Office
D_E Q`� North Carolinallorth DepartmentSalisburyStreet1 of1617 Environmental Quality I DivisionNorth of Water Carolina Resou2 7rces
512 Service Center I Raleigh, 69 9-1 617
Departmoni of Errokownootal uu.i\ " 919.707.9000

Permit NC0089532
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,
Tuckaseigee Water and Sewer Authority
is hereby authorized to discharge wastewater from a facilit} located at
TWSA WWTP#6— Horsepasture River
Highway 64,east of Cashiers
Jackson County
to receiving waters designated as the Horsepasture River in the Savanah 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 31,2025.
Signed this day
S.Daniel Smith
Director,Division of Water Resources
By Authority of the Environmental Management Commission
Page 1 of 9

Permit NC0089532
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 Tuckaseigee Water and Sewer Authority is hereby authorized to:
1. After obtaining an Authorization to Construct from the Division and submitting an engineering
Certificate,construct and operate a 0.125 MGD wastewater treatment plant.This facility is located
at the TWSA Wastewater Treatment Plant#6—Horsepasture River,Highway 64,east of Cashiers,
Jackson County.
2. After obtaining an Authorization to Construct from the Division and submitting an engineering
Certificate, construct and operate a 0.25 MGD wastewater treatment plant.
1 3. After obtaining an Authorization to Construct from the Division and submitting an engineering
Certificate,construct and operate a 0.495 MGD wastewater treatment plant.
2. Discharge from said treatment works at the location specified on the attached map into
Horsepasture River, classified C-Tr+waters in the Savannah River Basin.
Page 2 of 9

Permit NC0089532
Part
A. (1)EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (0.125 MGD)
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning upon receipt of an Engineering Certificate for 0.125 MGD and lasting until
receipt of Engineering Certificate for 0.25 MGD or expiration, the Permittee is authorized to discharge
treated wastewater from outfall 001. Such discharges shall be limited and monitored'by the Permittee as
specified below:
LIMITS MONITORING REQUIREMENTS
PARAMETER
Monthly Weekly Dail Measurement Sample Type Sample Location
Average Average Maximum Frequency
Flow 0.125 MGD Continuous Recording influent or
Effluent
BOD, 5-day, 20°C3 5.0 mg/L 7.5 mg/L Weekly Composite Influent&
Effluent
Total Suspended 10 mg/L 15 mg/L Weekly Composite Influent&
Solids3 Effluent
NH3-N 2.0 mg/L 6.0 mg/I. Weekly Composite Effluent
Temperature(°C) Daily Grab Effluent
Dissolved Oxygen' Weekly Grab Effluent
Fecal Coliform 200 100 m L 400'100 m L Weekly Grab Effluent
(geometric mean)
Total Nitrogen Semi-annual Composite Effluent
(NO2+NO3 +TKN)
Total Phosphorus Semi-annual Composite Effluent
pH >6.0 and <9.0 standard units Weekly Grab Effluent
Temperature(°C) Weekly Grab U&D 2
Dissolved Oxygen Weekly Grab U&D 2
Notes:
1. Submit discharge monitoring reports electronically using NC DWR's eDMR system.See Special Condition
A.(5.)
2. U: Upstream at least 100 feet from the outfall. D:Downstream at least 500 feet from the outfall.
3. The monthly average effluent BODS and Total Suspended Solids concentrations shall not exceed 15%of
the respective influent value(85%removal).
4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 9

Permit NC0089532
A(2.)EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS(0.25 MGD)
[15A NCAC 02B .0400 et seq.,02B .0500 et seq.]
During the period beginning upon receipt of an Engineering Certificate for 0.25 MGD and lasting until
receipt of Engineering Certificate for 0.495 MGD or expiration,the Permittee is authorized to discharge
treated wastewater from outfall 001. Such discharges shall be limited and monitored' by the Permittee
as specified below:
LIMITS MONITORING REQUIREMENTS
PARAMETER
Monthly Weekly Daily Measurement Sample Type Sample Location
Average Average Maximum Frequency
Flow 0.25 MGD Continuous Recording Influent or
Effluent
BOD, 5-day,20°C3 5.0 mg/L 7.5 mg/L Weekly Composite Influent&
Effluent
Total Suspended 10 mg/L 15 mg/L Weekly Composite Influent&
Solids3 Effluent
NH3-N 2.0 mg/L 6.0 mg/L Weekly Composite Effluent
Temperature(°C) Daily Grab Effluent
Dissolved Oxygen4 Weekly Grab Effluent
Fecal Coliform 200/100 mL 400/100 Weekly Grab Effluent
(geometric mean) mL
Total Nitrogen Semi-annual Composite Effluent
(NO2+NO3 +TKN)
Total Phosphorus Semi-annual Composite Effluent
pH >6.0 and <9.0 standard units Weekly Grab Effluent
Temperature(°C) Weekly Grab U&D 2
Dissolved Oxygen Weekly Grab U&D2
Notes:
1. Submit discharge monitoring reports electronically using NC DWR's eDMR system.See Special Condition
A.(5.)
2. U:Upstream at least 100 feet from the outfall. D:Downstream at least 500 feet from the outfall.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15%of
the respective influent value(85%removal).
4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 9

Permit NC0089532
A(3.)EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS(0.495 MGD)
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
During the period beginning upon receipt of an Engineering Certificate for 0.495 MGD and lasting until
expiration,the Permittee is authorized to discharge treated wastewater from outfall 001. Such
discharges shall be limited and monitored' by the Permittee as specified below:
LIMITS MONITORING REQUIREMENTS
PARAMETER
Monthly Weekly Daily Measurement Sample Type Sample Location
Average Average Maximum Frequency
Flow 0.495 Continuous Recording Influent or
MGD Effluent
BOD, 5-day,20°C3 5.0 mg/L 7.5 mg/L Weekly Composite Influent&
Effluent
Total Suspended 10 mg/L 15 mg/L Weekly Composite Influent&
Solids3 Effluent
NI-13-N 2.0 mg/L 6.0 mg/L Weekly Composite Effluent
Temperature(°C) Daily Grab Effluent
Dissolved Oxygen's Weekly Grab Effluent
Fecal Coliform 200/100 400/100 Weekly Grab Effluent
(geometric mean) mL mL
Total Nitrogen Semi-annual Composite Effluent
(NO2+NO3+TKN)
Total Phosphorus Semi-annual Composite Effluent
pH >6.0 and<9.0 standard units Weekly Grab Effluent
Temperature(°C) Weekly Grab U&D
Dissolved Oxygen Weekly Grab U&D2
Notes:
1. Submit discharge monitoring reports electronically using NC DWR's eDMR system.See Special
Condition A.(5.)
2. U: Upstream at least 100 feet from the outfall. D:Downstream at least 500 feet from the outfall.
3. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15%
of the respective influent value(85%removal).
4. The daily average dissolved oxygen effluent concentration shall not be less than 6.0 mg/L.
There shall be no discharge of floating solids or visible foam in other than trace amounts.
A.(4.)MERCURY SAMPLE
The Permittee shall provide one effluent mercury analysis,using EPA Method 1631E,in conjunction with
the next permit renewal application.The analysis should be taken within 12 months prior to the
application 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 results of the mercury analysis is not provided with the application,the application may be returned
as incomplete and the Permittee considered non-compliant.
Page 5 of 9

Permit NC0089532
A.(5.)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 11 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. Reportin¢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:
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Permit NC0089532
• 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:
https://www.federalregister.gov/documents/2015/10/22/2015-24954/national-pollutant-
discharge-elim ination-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
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Permit NC0089532
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
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 cert fy, 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 8 of 9

Permit NC0089532
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TWSA WWTP#6-Horsepasture River Facility I_°cation (not to sralel
Receiving Stream: Horesepasture River Stream Class: C Tr+
Drainage Basin: Savannah River Basin Sub-Basin: 03-13-02 IN
Permitted Flow: 0.125/0.25/0.495 MGD HUC: 03060101
Latitude: 35°07'46" Longitude: 83°04'00" PDES Permit NC0089532—Jackson County
USGS Quad: Big Ridge&Cashiers
Page 9 of 9