NC0089532_Final Permit_20150706

ADNR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
Mr. Daniel Harbaugh, Executive Director
Tuckereigee Water and Sewer Authority
1246 West Main. Street .,..._.
Sylva, North Carolina 28779
ty
RECEIVED
r
x'.
DIVISIon of Water gasouma
ji
JUL 1 7 2015
��
ye
`6'?
Water quality Regional Oper
Dear Mt. J4-
au h: Asheville Regional O6ia
Donald R. van der Vaart
Secretary
July 6, 2015
NPDES Permit Issuance
t TWSA WWTP#6- Horsepasture River
Permit No. NCO089532
Jackson County
I Class 2 Facility
Division ,pergurnel. huye >rgyueped,,,and.,,approved your application for the subject permit.
Accordingly, we are forwarding the attached NPDES permit. This permit is issued pursuant to the
requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between North Carolina and the U.S. Environmental Protection Agency dated October 15, 2007 (or
as subsequently amended).
Aftet evaluation of your comments on the draft permit the Division offers the following responses:
• Effluent Limitations and Monitoring Requirements pages were added for phased flows of
0.125 MGD and 0.250 MGD to allow flexibility for the construction of the plant in stages.
• The latitude and longitude for the discharge point were corrected in the map.
• You asked to clarify the inclusion of mercury monitoring. Mercury monitoring is included in
the permit as required in the Mercury TMDL Permitting Strategy. In 2012 the Division
developed a statewide mercury TMDL to address mercury impairment in surface waters in
North Carolina. As all waters of the state were listed as impaired for mercury the TMDL
permitting strategy is applicable to all NPDES dischargers. For new facilities at least one
sample is required to determine if mercury is detected in the effluent.
• The ammonia limit is applicable year around. The permit has been corrected by eliminating
the reference to winter months. Limits are more restrictive than other permits due to the
applicability of the most restrictive classification of Outstanding Resources Waters (ORW).
• The monitoring frequency for Total Nitrogen and Total Phosphorous has been corrected to
semi-annual.
• You asked to clarify the basis for BOD and TSS limits. BOD, and TSS limits are based on
the management strategy for the Horespasture River ORW area found in mle 15A NC -AC -;
2B .0225 (e) (13). As in the case of ammonia, limits based on this rule are more restrictive
1617 Mail Service Center, Ralegh, Anin Carolina 27699-1617
Location', 512 N. Salisbury St Raleigh, North CnArre 27604
Phone', 919E07-63001 FAX, 919,807-6492
Internet: x+w✓,novateroualiN.om
An Equal Oppotlunily\ ARrmaiva Acton Employer
One
NorthCarolina
Naturatty

Mr. Daniel Harbaugh
July 6, 2015
Page 2 of 2
than other permits due to the applicability of the most restrictive classification of ORW.
Monitoring frequency was determined in accordance with rule 15A NCAC 2B .0508.
In addition to the above mentioned modifications the none of the facility was changed to TWSA
W WTP #6 — Horsepasture River and the expiration date of the permit was modified to July 31,
2020 to allow for a five year permit cycle.
The permit includes a special condition to address the Environmental Protection Agency's (EPA's)
pending requitement for you to provide electronically -submitted Discharge Monitoring Reports
(eDMRs). The Division intends to fully implement the eDMR program as soon as practicable. See
Condition A.(5.) in permit. For information on eDMR, registering fox eDMR and obtaining an
eDMR user account, please visit the following web page: -
http: / /pottal.ncdent.u±g/web Avq /admin /bog/ipuzedt=.
For information on EPA's proposed NPDES Electronic Repotting Rule, please visit the following
web site: http:// 2 p_g / mpliam /proposed-npd s- 1 trni -x p mine I .
If any parts, measurement frequencies or samplings requirements contained in this permit are
unacceptable to you, you have the tight to an adjudicatoxy hearing upon written request within thirty
(30) days following receipt of this letter. This request must be in the form of a written petition,
conforming to Chapter 150B of the North Carolina General Statutes, and filed with the Office of
Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-6714). Unless
such demand is made, this decision shall be final and binding.
Please note that this permit is not transferable except after notice to the Division. The Division
may require modification or revocation and xeissuance of the permit. This permit does not affect
the legal requirements to obtain other 'permits which may be requited by the Division of Water
Resources or any other Federal, State, or Local governmental permits that may be required.
If you have any questions concerning this permit, please contact Teresa Rodriguez at telephone
number [phone] or at email [e-mail].
Sincerely,
ixntnexma�'
[Dixectox, Division of Water Resources
cc: NPDES Files
Central Files
Asheville Regional Office / Surface Water Protection Section

Permit NCO089532
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
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 facility located at
TWSA W WTP #6 - Horsepasture River
Highway64, 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 August 1, 2015.
This permit and authorization to discharge shall expire at midnight on July 31,
2020.
Signed this day July 6, 2015.
610 . Jay Zimmerman, P.G.
Director, Division of Water Resources
- By Authority of the Environmental Management Commission
Page 1 of 8

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. 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 8

Permit NCO089539
Part I
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:
PARAMETER
LIMITS
NIONITORING REQUIREMENTS
Monthly
Average
Weekly
ilvera a
Daily
.Maximum
Measurement
Frequency
Sample
Type
Sample
". Location)
Flow
0.125 MGD
Continuous
Recording
Influent or Effluent
BOD, 6-day, 20`C3
5.0 mg/L
7.5 m lL
Weekly
Composite
Influent & Effluent
Total Suspended Solids3
10 mg/L
15 mg/L
Weekly
Composite
Influent & Effluent
NH3-N
2.0 m /L
6.0 mg/L
_ Weekly
Composite
Effluent
Temperature °C
Daily
Grab
Effluent
Dissolved Oxygen4
Weekly
Grab
Effluent
Fecal Coliform
(geometric mean
200/100 mL
4001100 mL
Weekly
Grab
Effluent
Total Nitrogen
(NO2+ NO3 + TKN)
Semi-annual
Composite
Effluent
Total Phosphorus
Semi-annual
Composite
Effluent
H
> 6.0 and < 9.0 standard units
Weekly
Grab
Effluent
Temperature °C
Weekl
Grab
D & D z
Dissolved
Oxygen
Weekly
Grab
0& D z
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application 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 3 of 8

Permit NCO089532
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:
PARAMETER
LIMITS
MONITORING REQUIREMENTS.
Monthly
Average "-
Weekly
AVera a
Daily
I Maximum
Measurement
Frequency..
Sample
Type
Sample
Location
Flow
0.25 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C3
5.0 m /L
7.5 m /L
Weekly
Composite
Influent & Effluent
Total Suspended Solids3
10 m /L
15 m /L
Weekly
Composite
Influent & Effluent
N113-N _
2.0 m /L
6.0 mg/L
Weekly
Composite
Effluent
Temperature "C
Daily
Grab
Effluent
Dissolved
Ox en4
Weekly
Grab
Effluent
Fecal Coliform
(geometric mean
200/100 mL
4001100 mL
Weekly
Grab
Effluent
Total Nitrogen
(NO2+ NO3 + TKN)
-
Semi-annual
Composite
Effluent
Total Phosphorus
-
Semi-annual
Composite
Effluent
pH
> 6.0 and < 9.0 standaM units
Weekly
Grab
Effluent
Temperature °C
Weekly
Grab
0 & D z
Dissolved Oxygen
-
Weekly
Grab
0 & D z
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting discharge
monitoring reports electronically using NC DWR's eDMR application 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 8

Permit NCO089532
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:
ER
tBOD5
'LIMiTs
MGNITO'RING REQUIREMENTS
'Sample
Monthly
Average
Weekly
Average
Daily
Maximum
Measurement
Frequency
Sample
Type
'Location
0.495
MGD
Continuous
RecordingInfluent
or Effluent
20°C3
5.0 m /L
7.5 m /L
Weekly
Composite
Influent & Effluent
Total Suspended
Soli&
10 mg/L
15 mg/L
Weekly
Composite
Influent & Effluent
NHa N
2.0 mg/L
6.0 m /L
Weekly
Composite
Effluent
Temperature °C
Daily
Grab
Effluent
Dissolved Oxyqen4
Weekly
Grab
Effluent
Fecal Coliform
geometric mean
200/100 mL
4001100 mL
Weekly
Grab
Effluent
Total Nitrogen
(NO2+ NO3 + TKN)
Semi-annual
Composite
Effluent
Total
Phosphorus
Semi-annual
Composite
Effluent
H
> 6.0 and <9.0 standard units
Weekly
Grab
Effluent
Temperature °C
Weekl
Grab
U & D 2
Dissolved Oxygen
Weekly
Grab
U & D2
Notes:
1. No later than 270 days from the effective date of this permit, begin submitting
discharge monitoring reports electronically using NC DWR's eDMR application
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.
Page 5 of 8

Permit NC0089532
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.
A.(5.) ELECTRONIC REPORTING OF DISCHARGE MONITORING REPORTS
[G. S. 143-215.1(b)] -
Proposed federal regulations require electronic submittal of all discharge monitoring
reports (DMRs) and specify that, if a state does not establish a system to receive such
submittals, then permittees must submit DMRs electronically to the Environmental
Protection Agency (EPA). The Division anticipates that these regulations will be
adopted and is beginning implementation in late 2013.
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. [5.1 (a)1
Beginning no later than 270 days from the effective date of this permit, the
permittee shall begin reporting discharge monitoring data electronically using the
NC DWR's Electronic Discharge Monitoring Report (eDMR) intemet 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 a copy of the computer printed eDMR to
the following address:
NC DENR / DWR / Information Processing Unit
ATTENTION: Central Files / eDMR
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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.
Page 6 of 8

Permit NC0089532
Requests for temporary waivers from the NPDES electronic reporting requirements
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
using eDMR. Temporary waivers shall be valid for twelve (12) months and shall
thereupon expire. At such time, DMRs shall be submitted electronically to the
Division unless the permittee re -applies for and is granted a new temporary waiver
by the Division.
Information on eDMR and application for a temporary waiver from the NPDES
electronic reporting requirements is found on the following web page:
http://portal.ncdenr.org/web/wq/admin/bog/ipu/edmr
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.
2. Signatory Requirements [Supplements Section B Ill) (bl and supersedes
Section B. (11.1 (dll
All eDMRs submitted to the permit issuing authority shall be signed by a person
described in Part II, Section B. (I I.)(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://portal.ncdenr.org/web/wq/admin/bog/ipu/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:
7 certi�, 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."
3. 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 7 of 8

Permit NCO089532