NC0027359_Regional Office Historical File 2001 to 2018

Permit No.: NCO027359
Owner/Permittee :
Responsible Official:
Resp. Official Title:
Facility Name:
Facility Address:
Registered for eDMR? :
Facility Classification:
ORC Name
Required, Not
Required, Not
Version: 4.00
Tennessee Valley Authority
Hiwassee Hydro Plant
Near Hiwasse
Murphy, NC 28906
Yes
PCNC
Certification #
PCNC / 995491
PCNC / 995491
Cert Status
Active
Active
Permt Status:
Active
ORC Designation
ORC
Backup
Page # : 3
Date: 1/24/2017

Facility information
NPDES permit #: NC0027359 Cherokee County
Facility name:
Tennessee Valley Authority -
Hiwassee Hydroelectric Plant
WWTP class: Class 1 (100% Industrial Process & Commercial)
SIC: 4911 Electric Services Primary: 48
(25 employees)
WWTP type: Hydroelectric turbine operation with 5 outfalls:
Outfall 001: discharge from power house unit 1
floor drains and wheel pit leakage
Outfall 002: discharge from draft tube
unwatering operations
Outfalls 003 & 004: discharge from units 1 & 2
generator air and bearing non -contact
cooling water
Outfall 005: discharge from sump and station
sump from: upper gallery drains, lower
gallery drains, unit 2 floor drains, and unit 2
wheel pit leakage
WWTP location: 600 Powerhouse Road @ the Hiwassee Dam,
west of Hiwassee Village, near Murphy 28906
Responsible official: Melissa S. Tupps
Responsible "'s title: Environmental Program Administrator
Mailing address: Tennessee Valley Authority
1101 Market Street, PSC 1 F-C
Chattanooga, TN 37419
Jason Neely, Plant Manager
TVA Hiwassee Hydro Plant
1101 Market Street, LP 3D
Chattanooga, TN 37402

Phone numbers
423-825-3008 Melissa Tupps -TVA, Chattanooga, TN
423-876-6856 "
423-331-0573 " - cell
423-876-4252 " - fax
423-751-7965 Jason Neely, Plant Manager
423-751-8978 " — fax (email: jdneely(@tva.gov)
Operator information
WWTP ORC: n/a
WWTP back-up ORC(s): n/a
Permit information
Date issued:
Expiration date:
Last CEI:
Stream information
Stream:
River basin:
Sub -basin:
Hydrologic Unit Code:
Quad:
Grid:
Instream Waste Conc.:
Drainage area sq mi:
Stream classification:
Average stream flow:
Summer 7Q10 cfs:
Winter 7Q10 cfs:
30Q2 cfs:
Latitude:
Longitude:
April 1, 2013
August 31, 2017
8-14-12 by Kathy Jirnison
Hiwassee River
Hiwassee River Basin
04-05-02
060200020705
Unaka, NC
G2NW
n/a --variable flow,
n/a
C
n/a
250
n/a
n/a
350 09' 01 " N
840 10' 41 " W
Note: The lat & long on th
slightly different. Al
(400 West Summit H
is different from they
Other information
Driving directions:
not limited
1-28-13 fact sheet is
so, the fact sheet address
ill Drive, Knoxville, TN 37902)
permittee's 2012 application.

r
ef
IJ
ASCII

Intake from Hiwassee River
Outfall
i
Upper
...................................................
Gallery Drains
1.440 MGD
LowerSum C).................................................. 005
Gallery Drains 1.641 MGD
--� Unit 2 Floor Drains
Station
E
0.........,
Sump
0.2016 MGD
Unit2 Wheel Pit ...................................................
Leakage
_ _ _ _ _ _ Unit -._._._._._._._._._.-.-._._2.052
-- ->
003
Generator Air &
Bearing Cooling Water
_ - _ _ _ . _ -Unit 2 _ _ _ .- _ -
_ - - _ _ _ _ -2.606 MGD
004
Draft Tube
Unwatering Operations
Unwatering
Sump
7.200 MGD
Unit 1 Floor Drains
And Wheel Pit Leakage
Station
Sump 0.................................................:$,
001
0.432 MGD
Potable
Sanitary Sewage Drains I Septic Tank
Water
Subsurface Disposal Field
Symbols:
Raw River Water, Potable Water, Precipitation, Leakage, or Ground Water
- - - Non -Contact Cooling Water
"""""' Other Wastewater
OMotor -Driven Pump
Notes:
1. All effluents discharge into the Hiwassee River. Tennessee Valley Authority
2. Flows are based on pump -rated capacities and maximum design flows.
Hiwassee Hydro Plant
NPDES Permit No. NC 0027359
Cherokee County, North Carolina
January 2012

A4 A
MCDEM
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P. E. John E. Skvarla, III
Governor Director Secretary
Mr. Jason Neely
Plant Manager
Hiwassee Hydro Plant
1101 Market Street LP 3D
Chattanooga, Tennessee 37402
Dear Mr. Neely:
April 5, 2013 I R E C I V
APR 1 1 2013
DWQ/Surface Water Protection Section
Asheville Regional Office
Subject: Issuance of NPDES Permit Renewal
Permit NCO027359
Hiwassee Hydro Plant
Cherokee County
The Division of Water Quality (Division) personnel have reviewed and approved your application for
renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. It
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.
There are no changes to this permit from the draft permit dated February 13, 2013, and no changes from
your current permit except for minor narrative updates.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable, you have the right to an adjudicatory hearing upon written request within thirty (30) days
after receiving this letter. Your request must take the form of a written petition conforming to Chapter
150B of the North Carolina General Statutes, and must be filed with the Office of Administrative
Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such demand is made,
this permit remains final and binding.
This permit is not transferable except after notifying the Division of Water Quality. The Division may
modify and re -issue, or revoke this permit. Please notice that this permit does not affect your legal
obligation to obtain other permits required by the Division of Water Quality, the Division of Land
Resources, the Coastal Area Management Act, or other federal or local governments.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet: wwwmwaterguality.org
NorthCarolina
An Equal Opportunity 1 Affirmative Action Employer

If you have questions, or if we can be of further service, please contact Jim McKay at
jaiiies.mckgy@_ncdenr.gov ncdenr.gov or call [phone].
Sincerely,
t2i Charles Wakild, P.E.
Enclosure: NPDES`'Permit FINAL NC0027359 - Hiwassee Hydro Plant
a
cc: NPDES Unit
Central Files
Asheville Regional Office/Surface-Water Pr6tedtion

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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
Tennessee Valley Authority
is hereby authorized to discharge wastewater from a facility located at
Hiwassee Hydro Plant
at the Hiwassee Dam
west of Hiwassee Village
Cherokee County
to receiving waters designated as the Hiwassee River in the Hiwassee 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 May 1, 2013.
This permit and authorization to discharge shall expire at midnight on August 31, 2017.
Signed this day April 5, 2013.
-/-- j1 harles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO027359
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.
Tennessee Valley Authority is hereby authorized to:
1. Continue to discharge water from a station sump which receives flow from wheel pit leakage
and power house floor drains (Outfall 001), discharge unwatering sump water (Outfall 002),
discharge non -contact cooling water (Outfalls 003 and 004), and discharge station sump
water, as well as upper and lower gallery drain water (Outfall 005), located at Hiwassee
Hydro Plant, at the Hiwassee Dam, west of Hiwassee Village, Cherokee County and
2. Discharge from said facility at the location specified on the attached map into the Hiwassee
River which is classified C waters in the Hiwassee River Basin.
Page 2 of 7

Permit NCO027359
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Page 3 of 7

Permit NCO027359
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the station sump (receiving flow from Unit 1 floor drains and wheel pit leakage) from Outfall
001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT LIMITS MONITORING REQUIREMENTS
CHARAGTERIS,TICS "
Monthly . WeeklyDaily' Measurement
y ; ` . Sample; . ' Sample'
Average° j Average mammum Frequency _ Lype . Location'
Flow Quarterly' Estimate E
Oil and Grease2 15 mg/L 20 mg/L Quarterly E
pH3 E
Notes:
1 Sample locations: E — Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report-(DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the .MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DAM) form and postmarked no later than the 30'h day following the completed reporting period. The
first DMR is due on the 30'h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.
Page 4 of 7

Permit NCO027359
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from draft tube_ unwatering operations from Outfall 002. Such discharges shall be limited and
monitored by the Permittee as specified below:
EFFl;I7ENT LIMITS MQM, omNG REQb MENTS
CHARACTFItISTIC4'.
1VIonthly Weekly Daily'` 1VIea§urement ' Sample Sample
Avers e. _ Avers e 1Vlaximum - Fre- uenc - T e Locations
Flow Quarterly Estimate E
Oil and Grease 2 15 mg/L 20 mg/L Quarterly E
pH 3 E
Notes:
1 Sample locations: E — Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
s The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any.wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting 'use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30`h day following the completed reporting period. The
first DMR is due on the 30`h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.
Page 5 of 7

Permit NCO027359
A. (3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge once -through cooling waters from generator air cooling and bearing cooling from Outfalls 003 and 004.
Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT ' :_
C$AR `CTERISTTCS 4
I7IlYlITS ,,;'
m°
1VIONITORING REQiTIltEMENTS
y��
1VIontlil
A, a ;.
Weekl
Y
A era e: _
Dail Y
`," Maximumµ_'_Locat�on�
Measurement
;$am 1'e
>� p.
=Sam k
p.
Flow
Semi-annually
Estimate
E
Temperature 2
2
2
E
H3
E
Notes:
1 Sample locations: E — Effluent.
2 The temperature of the effluent will be regulated so that the temperature of the receiving stream does not increase more than 2.8oC
above the natural water temperature. Receiving water temperature shall not exceed a maximum of 29 C due to the facility's
operation.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DAM) form and postmarked no later than the 30`h day following the completed reporting period. The
first DMR is due on the 30`h day of the month following the calendar quarter in which the permit was issued.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.
Page 6 of 7

Permit NCO027359
A. (4). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the lower and upper gallery drains, and waters from Unit 2 floor drains and wheel pit
leakage, from Outfall 005. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT LIIVI,ITS MONITORING REQUIREMENTS
CIIAI2 ' CTERISTICS
Monthly Weekly Daily Measurement Sample Sample
Ayera e Avera a Makimum Ff .04ueniey Type Locationl
Flow Quarterly Estimate E
Oil and Greasez 15 mg/L 20 mg/L Quarterly E
pH3 I I E
Notes:
1 Sample locations: E — Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be' visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
Mechanical cleaning operations which do not contribute any wastewater to the discharge are not limited by this permit.
Non -discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30 day following the completed reporting period. The
first DMR is due on the 30 day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge offloating solids or visible foam (other than trace amounts) in the effluent.
Page 7 of 7

&DES Permit Standard Conditions
Page 1 of 18
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
Section A. Definitions
2/Month
Samples are collected twice per month with at least ten calendar days between sampling events. These samples shall be
representative of the wastewater discharged during the sample period.
3/Week
Samples are collected three times per week on three separate calendar days. These samples shall be representative of
the wastewater discharged during the sample period.
Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act (CWA), as amended, 33 USC 1251, et.
seq.
Annual Average
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar year. In the case of fecal
coliform, the geometric mean of such discharges.
Arithmetic Mean
The summation of the individual values divided by the number of individual values.
Bypass
The known diversion of waste streams from any portion of a treatment facility including the collection system, which is
not a designed or established or operating mode for the facility.
Calendar Day
The -period from midnight of one day until midnight of the next day. However, for purposes of this permit, any
consecutive 24-hour period that reasonably represents the calendar day may be used for sampling.
Calendar Week
The period from Sunday through the following Saturday.
Calendar Quarter
One of the following distinct periods: January through March, April through June, July through September, and
October through December.
Composite Sample
A sample collected over a 24-hour period by continuous sampling or combining grab samples of at least 100 mL in
such a manner as to result in a total sample representative of the wastewater discharge during the sample period. The
Director may designate the most appropriate method (specific number and size of aliquots necessary, the time interval
between grab samples, etc.) on a case -by -case basis. Samples may be collected manually or automatically. Composite
samples may be obtained by the following methods:
(1) Continuous: a single, continuous sample collected over a 24-hour period proportional to the rate of flow.
(2) Constant time/variable volume: a series of grab samples collected at equal time intervals over a 24 hour period
of discharge and combined proportional to the rate of flow measured at the time of individual sample
collection, or
(3) Variable time/constant volume: a series of grab samples of equal volume collected over a 24 hour period with
the time intervals between samples determined by a preset number of gallons passing the sampling point. Flow
measurement between sample intervals shall be determined by use of a flow recorder and totalizer, and the
preset gallon interval between sample collection fixed at no greater than 1/24 of the expected total daily flow at
the treatment system, or
Version 1110912011

—DES Permit Standard Conditions
Page 2 of 18
(4) Constant time/constant volume: a series of grab samples of equal volume collected over a 24-hour period at a
constant time interval. Use of this method requires prior approval by the Director. This method may only be
used in situations where effluent flow rates vary less than 15 percent. The following restrictions also apply:
➢ Influent and effluent grab samples shall be of equal size and of no less than 100 milliliters
➢ Influent samples shall not be collected more than once per hour.
➢ Permittees with wastewater treatment systems whose detention time < 24 hours shall collect effluent grab
samples at intervals of no greater than 20 minutes apart during any 24-hour period.
➢ Permittees with wastewater treatment systems whose detention time exceeds 24 hours shall collect effluent
grab samples at least every six hours; there must be a minimum of four samples during a 24-hour sampling
period.
Continuous flow measurement
Flow monitoring that occurs without interruption throughout the operating hours of the facility. Flow shall be
monitored continually except for the infrequent times when there may be no flow or for infrequent maintenance
activities on the flow device.
Daily Discharge
The discharge of a pollutant measured during a calendar day or any 24-hour period that reasonably represents the
calendar day for purposes of sampling. For pollutants measured in units of mass, the "daily discharge" is calculated as
the total mass of the pollutant discharged over the day. For pollutants expressed in other units of measurement, the
"daily discharge" is calculated as the average measurement of the pollutant over the day. (40 CFR 122.2; see also
"Composite Sample," above.)
Daily Maximum
The highest "daily discharge" during the calendar month.
Daily Sampling
Parameters requiring daily sampling shall be sampled 5 out of every 7 days per week unless otherwise specified in the
permit. Sampling shall be conducted on weekdays except where holidays or other disruptions of normal operations
prevent weekday sampling. If sampling is required for all seven days of the week for any permit parameter(s), that
requirement will be so noted on the Effluent Limitations and Monitoring Page(s).
DWQ or "the Division"
The Division of Water Quality, Department of Environment and Natural Resources.
Effluent
Wastewater discharged following all treatment processes from a water pollution control facility or other point source
whether treated or untreated.
EMC
The North Carolina Environmental Management Commission
EPA
The United States Environmental Protection Agency
Facility Closure
Cessation of all activities that require coverage under this NPDES permit. Completion of facility closure will allow this
permit to be rescinded.
Geometric Mean
The Nth root of the product of the individual values where N = the number of individual values. For purposes of
calculating the geometric mean, values of "0" (or "< [detection level]") shall be considered = 1.
Grab Sample
Individual samples of at least 100 mL collected over a period of time not exceeding 15 minutes. Grab samples can be
collected manually. Grab samples must be representative of the discharge (or the receiving stream, for instream
samples).
Version 1110912011

IPDES Permit Standard Conditions
Page 3 of 18
Hazardous Substance
Any substance designated under 40 CFR Part 116 pursuant to Section 311 of the CWA.
Instantaneous flow measurement
The flow measured during the minimum time required for the flow measuring device or method to produce a result in
that instance. To the extent practical, instantaneous flow measurements coincide with the collection of any grab
samples required for the same sampling period so that together the samples and flow are representative of the discharge
during that sampling period.
Monthly Average (concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar month. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Permit Issuing Authority
The Director of the Division of Water Quality.
Quarterly Average (concentration limit)
The arithmetic mean of all samples taken over a calendar quarter.
Severe property damage
Substantial physical damage to property, damage to the treatment facilities which causes them to become inoperable, or
substantial and permanent loss of natural resources which can reasonably be expected to occur in the absence of a
bypass. Severe property damage excludes economic loss caused by delays in production.
Toxic Pollutant:
Any pollutant listed as toxic under Section 307(a)(1) of the CWA.
Upset
An incident beyond the reasonable control of the Permittee causing unintentional and temporary noncompliance with
permit effluent limitations and/or monitoring requirements. An upset does not include noncompliance caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive
maintenance, or careless or improper operation.
Weekly Average concentration limit)
The arithmetic mean of all "daily discharges" of a pollutant measured during the calendar week. In the case of fecal
coliform or other bacterial parameters or indicators, the geometric mean of such discharges.
Section B. General Conditions
1. Duty to Comply
The Permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of
the CWA and is grounds for enforcement action; for permit termination, revocation and reissuance, or
modification; or denial of a permit renewal application [40 CFR 122.41].
a. The Permittee shall comply with effluent standards or prohibitions established under section 307(a) of the
CWA for toxic pollutants and with standards for sewage sludge use or disposal established under section
405(d) of the CWA within the time provided in the regulations that establish these standards or prohibitions or
standards for sewage sludge use or disposal, even if the permit has not yet been modified to incorporate the
requirement.
b. The CWA provides that any person who violates section[s] 301, 302, 306, 307, 308, 318 or 405 of the Act, or
any permit condition or limitation implementing any such sections in a permit issued under section 402, or any
requirement imposed in a pretreatment program approved under sections 402(a)(3) or 402(b)(8) of the Act, is
subject to a civil penalty not to exceed $37,500 per day for each violation. [33 USC 1319(d) and 40 CFR
122.41(a)(2)]
c. The CWA provides that any person who negligently violates sections 301, 302, 306, 307, 308, 318, or 405 of
the Act, or any condition or limitation implementing any of such sections in a permit issued under section 402
of the Act, or any requirement imposed in a pretreatment program approved under section 402(a)(3) or
402(b)(8) of the Act, is subject to criminal penalties of $2,500 to $25,000 per day of violation, or
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imprisonment of not more than 1 year, or both. In the case of a second or subsequent conviction for a negligent
violation, a person shall be subject to criminal penalties of not more than $50,000 per day of violation, or by
imprisonment of not more than 2 years, or both. [33 USC 1319(c)(1) and 40 CFR 122.41(a)(2)]
d. Any person who knowingly violates such sections, or such conditions or limitations is subject to criminal
penalties of $5,000 to $50,000 per day of violation, or imprisonment for not more than 3 years, or both. In the
case of a second or subsequent conviction for a knowing violation, a person shall be subject to criminal
penalties of not more than $100,000 per day of violation, or imprisonment of not more than 6 years, or both.
[33 USC 1319(c)(2) and 40 CFR 122.41(a)(2)]
e. Any person who knowingly violates section 301, 302, 303, 306, 307, 308, 318 or 405 of the Act, or any permit
condition or limitation implementing any of such sections in a permit issued under section 402 of the Act, and
who knows at that time that he thereby places another person in imminent danger of death or serious bodily
injury, shall, upon conviction, be subject to a fine of not more than $250,000 or imprisonment of not more than
15 years, or both. In the case of a second or subsequent conviction for a knowing endangerment violation, a
person shall be subject to a fine of not more than $500,000 or by imprisonment of not more than 30 years, or
both. An organization, as defined in section 309(c)(3)(B)(iii) of the CWA, shall, upon conviction of violating
the imminent danger provision, be subject to a fine of not more than $1,000,000 and can be fined up to
$2,000,000 for second or subsequent convictions. [40 CFR 122.41(a)(2)]
f. Under state law, a civil penalty of not more than $25,000 per violation may be assessed against any person
who violates or fails to act in accordance with the terms, conditions, or requirements of a permit. [North
Carolina General Statutes § 143-215.6A]
g. Any person may be assessed an administrative penalty by the Administrator for violating section 301, 302,
306, 307, 308, 318 or 405 of this Act, or any permit condition or limitation implementing any of such sections
in a permit issued under section 402 of this Act. Administrative penalties for Class I violations are not to
exceed $16,000 per violation, with the maximum amount of any Class I penalty assessed not to exceed
$37,500. Penalties for Class Il,violations are not to exceed $16,000 per day for each day during which the
violation continues, with the maximum amount of any Class I1 penalty not to exceed $177,500. [33 USC
1319(g)(2) and 40 CFR 122.41(a)(3)]
2. Duty to Mitigate
The Permittee shall take all reasonable steps to minimize or prevent any discharge "or sludge use or disposal in
violation of this permit with a reasonable likelihood of adversely affecting human health or the environment [40
CFR 122.41(d)].
3. Civil and Criminal Liability
Except as provided in permit conditions on "Bypassing" (Part H.C.4), "Upsets" (Part H.C.5) and "Power Failures"
(Part H.C.7), nothing in this permit shall be construed to relieve the Permittee from any responsibilities, liabilities,
or penalties for noncompliance pursuant to NCGS 143-215.3, 143-215.6 or Section 309 of the Federal Act, 33 USC
1319. Furthermore, the Permittee is responsible for consequential damages, such as fish kills, even though the
responsibility for effective compliance may be temporarily suspended.
4. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve the Permittee
from any responsibilities, liabilities, or penalties to which the Permittee is or may be subject to under NCGS 143-
215.75 et seq. or Section 311 of the Federal Act, 33 USG 1321. Furthermore, the Permittee is responsible for
consequential damages, such as fish kills, even though the responsibility for effective compliance may be
temporarily suspended.
5. Property Rights
The issuance of this permit does not convey any property rights in either real or personal property, or any exclusive
privileges, nor does it authorize any injury to private property or any invasion of personal rights, nor any
infringement of Federal, State or local laws or regulations [40 CFR 122.41(g)].
6. Onshore or Offshore Construction
This permit does not authorize or approve the construction of any onshore or offshore physical structures or
facilities or the undertaking of any work in any navigable waters.
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7. Severability
The provisions of this permit are severable. If any provision of this permit, or the application of any provision of
this permit to any circumstances, is held invalid, the application of such provision to other circumstances, and the
remainder of this permit, shall not be affected thereby [NCGS 150B-23].
8. Duty to Provide Information
The Permittee shall furnish to the Permit Issuing Authority, within a reasonable time, any information which the
Permit Issuing Authority may request to determine whether cause exists for modifying, revoking and reissuing, or
terminating this permit or to determine compliance with this permit. The Permittee shall also furnish to the Permit
Issuing Authority upon request, copies of records required by this permit [40 CFR 122.41(h)].
9. Duty to Reapply
If the Permittee wishes to continue an activity regulated by this permit after the expiration date of this permit, the
Permittee must apply for and obtain a new permit [40 CFR 122.41(b)].
10. Expiration of Permit
The Permittee is not authorized to discharge after the expiration date. In order to receive automatic authorization to
discharge beyond the expiration date, the Pen- ittee shall submit such information, forms, and fees as are required
by the agency authorized to issue permits no later than 180 days prior to the expiration date unless permission for a
later date has been granted by the Director. (The Director shall not grant permission for applications to be
submitted later than the expiration date of the existing permit.) [40 CFR 122.21(d)] Any Permittee that has not
requested renewal at least 180 days prior to expiration, or any Permittee that does not have a permit after the
expiration and has not requested renewal at least 180 days prior to expiration, will subject the Permittee to
enforcement procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory Requirements
All applications, reports, or information submitted to the Permit Issuing Authority shall be signed and certified [40
CFR 122.41(k)].
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible
corporate officer means: (a) a president, secretary, treasurer or vice president of the corporation in charge
of a principal business function, or any other person who performs similar policy or decision making
functions for the corporation, or (b) the manager of one or more manufacturing, production, or operating
facilities, provided, the manager is authorized to make management decisions which govern the operation
of the regulated facility including having the explicit or implicit duty of making major capital investment
recommendations, and initiating and directing other comprehensive measures to assure long term
environmental compliance with environmental laws and regulations; the manager can ensure that the
necessary systems are established or actions taken to gather complete and accurate information for permit
application requirements; and where authority to sign documents has been assigned or delegated to the
manager in accordance with corporate procedures.
(2) For a partnership or sole proprietorship: by a general partner or the proprietor, respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive officer or
ranking elected official [40 CFR 122.22].
b. All reports required by the permit and other information requested by the Permit Issuing Authority shall be
signed by a person described in paragraph a. above or by a duly authorized representative of that person. A
person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or a position having responsibility for the overall operation
of the regulated facility or activity, such as the position of plant manager, operator of a well or well field,
superintendent, a position of equivalent responsibility, or an individual or position having overall
responsibility for environmental matters for the company. (A duly authorized representative may thus be
either a named individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority [40 CFR 122.22]
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c. Changes to authorization: If an authorization under paragraph (b) of this section is no longer accurate because
a different individual or position has responsibility for the overall operation of the facility, a new authorization
satisfying the requirements of paragraph (b) of this section must be submitted to the Director prior to or
together with any reports, information, or applications to be signed by an authorized representative [40 CFR
122.221
d. Certification. Any person signing a document under paragraphs a. or b. of this section shall make the following
certification [40 CFR 122.221. 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 quaked 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. "
12. Permit Actions
This permit may be modified, revoked and reissued, or terminated for cause. The filing of a request by the
Permittee for a permit modification, revocation and reissuance, or termination, or a notification of planned changes
or anticipated noncompliance does not stay any permit condition [40 CFR 122.41(f)].
13. Permit Modification, Revocation and Reissuance, or Termination
The issuance of this permit does not prohibit the permit issuing authority from reopening and modifying the permit,
revoking and reissuing the permit, or terminating the permit as allowed by the laws, rules, and regulations
contained in Title 40, Code of Federal Regulations, Parts 122 and 123; Title 15A of the North Carolina
Administrative Code, Subchapter 02H .0100; and North Carolina General Statute 143.215.1 et. al.
14. Annual Administering and Compliance Monitoring Fee Requirements
The Permittee must pay the annual administering and compliance monitoring fee within thirty days after being
billed by the Division. Failure to pay the fee in a timely manner in accordance with 15A NCAC 02H .0105(b)(2)
may cause this Division to initiate action to revoke the permit.
Section C. Operation and Maintenance of Pollution Controls
1. Certified Operator
Owners of classified water pollution control systems must designate operators, certified by the Water Pollution
Control System Operators Certification Commission (WPCSOCC), of the appropriate type and grade for the
system, and, for each classification must [T15A NCAC 08G .0201]:
a. designate one Operator hi Responsible Charge (ORC) who possesses a valid certificate of the type and grade at
least equivalent to the type and grade of the system;
b. designate one or more Back-up Operator(s) in Responsible Charge (Back-up ORCs) who possesses a valid
certificate of the type of the system and no more than one grade less than the grade of the system, with the
exception of no backup operator in responsible charge is required for systems whose minimum visitation
requirements are twice per year; and
c. submit a signed completed "Water Pollution Control System Operator Designation Form" to the Commission
(or to the local health department for owners of subsurface systems) countersigned by the designated certified
operators, designating the Operator in Responsible Charge (ORC) and the Back-up Operator in Responsible
Charge (Back-up ORC):
(1) 60 calendar days prior to wastewater or residuals being introduced into a new system; or
(2) within 120 calendar days following:
➢ receiving notification of a change in the classification of the system requiring the designation of a new
Operator in Responsible Charge (ORC) and Back-up Operator in Responsible Charge (Back-up ORC)
of the proper type and grade; or
➢ a vacancy in the position of Operator in Responsible Charge (ORC) or Back-up Operator in
Responsible Charge (Back-up ORC).
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(3) within seven calendar days of vacancies in both ORC and Back-up ORC positions replacing or designating
at least one of the responsibilities.
The ORC of each Class I facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least weekly
➢ Comply with all other conditions of 15A NCAC 08G .0204.
The ORC of each Class II, I1I and IV facility (or the Back-up ORC, when acting as surrogate for the ORC) must:
➢ Visit the facility as often as is necessary to insure proper operation of the treatment system; the treatment
facility must be visited at least five days per week, excluding holidays
➢ Properly manage and document daily operation and maintenance of the facility
➢ Comply with all other conditions of 15A NCAC 08G .0204.
Proper Operation and Maintenance
The Permittee shall at all times properly operate and maintain all facilities and systems of treatment and control
(and related appurtenances) which are installed or used by the Permittee to achieve compliance with the conditions
of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality
assurance procedures. This provision requires the Permittee to install and operate backup or auxiliary facilities only
when necessary to achieve compliance with the conditions of the permit [40 CFR 122.41(e)].
NOTE: Properly and officially designated operators are fully responsible for all proper operation and maintenance
of the facility, and all documentation required thereof, whether acting as a contract operator [subcontractor] or a
member of the Pernuttee's staff.
3. Need to Halt or Reduce not a Defense
It shall not be a defense for a Permittee in an enforcement action that it would have been necessary to halt or
reduce the permitted activity in order to maintain compliance with the condition of this permit [40 CFR 122.41(c)].
4. Bypassing of Treatment Facilities
a. Bypass not exceeding limitations [40 CFR 122.41(m)(2)]
The Permittee may allow any bypass to occur which does not cause effluent limitations to be exceeded, but
only if it also is for essential maintenance to assure efficient operation. These,bypasses are not subject to the
provisions of Paragraphs b. and c. of this section.
b. Notice [40 CFR 122.41(m)(3)]
(1) Anticipated bypass. If the Permittee knows in advance of the need for a bypass, it shall submit prior notice,
if possible at least ten days before the date of the bypass; including an evaluation of the anticipated quality
and effect of the bypass.
(2) Unanticipated bypass. The Permittee shall submit notice of an unanticipated bypass as required in Part
II.E.6. (24-hour notice).
c. Prohibition of Bypass
(1) Bypass from the treatment facility is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for bypass, unless:
(A) Bypass was unavoidable to prevent loss of life, personal injury or severe property damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment facilities,
retention of untreated wastes or maintenance during normal periods of equipment downtime. This
condition is not satisfied if adequate backup equipment should have been installed in the exercise of
reasonable engineering judgment to prevent a bypass which occurred during normal periods of
equipment downtime or preventive maintenance; and
(C) The Permittee submitted notices as required under Paragraph b. of this section.
(2) Bypass from the collection system is prohibited and the Permit Issuing Authority may take enforcement
action against a Permittee for a bypass as provided in any current or future system -wide collection system
permit associated with the treatment facility.
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(3) The Permit Issuing Authority may approve an anticipated bypass, after considering its adverse effects, if
the Permit Issuing Authority determines that it will meet the three conditions listed above in Paragraph c.
(1) of this section.
Upsets
a. Effect of an upset [40 CFR 122.41(n)(2)]: An upset constitutes an affirmative defense to an action brought for
noncompliance with such technology based permit effluent limitations if the requirements of paragraph b. of
this condition are met. No determination made during administrative review of claims that noncompliance was
caused by upset, and before an action for noncompliance, is final administrative action subject to judicial
review.
b. Conditions necessary for a demonstration of upset: Any Permittee who wishes to establish the affirmative
defense of upset shall demonstrate, through properly signed, contemporaneous operating logs, or other relevant
evidence that:
(1) An upset occurred and that the Permittee can identify the cause(s) of the upset;
(2) The Permittee facility was at the time being properly operated; and
(3) The Permittee submitted notice of the upset as required in Part II.E.6.(b) of this permit.
(4) The Permittee complied with any remedial measures required under Part II.13.2. of this permit.
c. Burden of proof [40 CFR 122.41(n)(4)]: The Permittee seeking to establish the occurrence of an upset has
the burden of proof in any enforcement proceeding.
6. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of treatment or control of wastewaters
shall be utilized/disposed of in accordance with NCGS 143-215.1 and in a manner such as to prevent any pollutant
from such materials from entering waters of the State or navigable waters of the United States except as permitted
by the Commission. The Permittee shall comply with all applicable state and Federal regulations governing the
disposal of sewage sludge, including 40 CFR 503, Standards for the Use and Disposal of Sewage Sludge; 40 CFR
Part 258, Criteria For Municipal Solid Waste Landfills; and 15A NCAC Subchapter 2T, Waste Not Discharged To
Surface Waters. The Permittee shall notify the Permit Issuing Authority of any significant change in its sludge use
or disposal practices.
7. Power Failures
The Permittee is responsible for maintaining adequate safeguards (as required by 15A NCAC 02H .0124) to
prevent the discharge of untreated or inadequately treated wastes during electrical power failures either by means
of alternate power sources, standby generators or retention of inadequately treated effluent.
Section D. Monitoring and Records
1. Representative Sampling
Samples collected and measurements taken, as required herein, shall be representative of the permitted discharge.
Samples collected at a frequency less than daily shall be taken on a day and time that is representative of the
discharge for the period the sample represents. All samples shall be taken at the monitoring points specified in this
permit and, unless otherwise specified, before the effluent joins or is diluted by any other wastestream, body of
water, or substance. Monitoring points shall not be changed without notification to and the approval of the Permit
Issuing Authority [40 CFR 122.410)].
2. Reporting
Monitoring results obtained during the previous month(s) shall be summarized for each month and reported on a
monthly Discharge Monitoring Report (DMR) Form (MR 1, 1. 1, 2, 3) or alternative forms approved by the
Director, postmarked no later than the last calendar day of the month following the completed reporting period.
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. Duplicate signed copies of these,
and all other reports required herein, shall be submitted to the following address:
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NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files -
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected
and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated and maintained to ensure that the accuracy of the measurements is consistent
with the accepted capability of that type of device. Devices selected shall be capable of measuring flows with a
maximum deviation of less than 10% from the true discharge rates throughout the range of expected discharge
volumes. Flow measurement devices shall be accurately calibrated at a minimum of once per year and maintained
to ensure that the accuracy of the measurements is consistent with the accepted capability of that type of device.
The Director shall approve the flow measurement device and monitoring location prior to installation.
Once -through condenser cooling water flow monitored by pump logs, or pump hour meters as specified in Part I of
this permit and based on the manufacturer's pump curves shall not be subject to this requirement.
4. Test Procedures
Laboratories used for sample analysis must be certified by the Division. Permittees should contact the Division's
Laboratory Certification Section (919 733-3908 or http://portal.ncdenr.org/web/wq/lab/cert) for information
regarding laboratory certifications.
Facilities whose personnel are conducting testing of field -certified parameters only must hold the appropriate field
parameter laboratory certifications.
Test procedures for the analysis of pollutants shall conform to the EMC regulations (published pursuant to NCGS
143-215.63 et. seq.), the Water and Air Quality Reporting Acts, and to regulations published pursuant to Section
304(g), 33 USC 1314, of the CWA (as amended), and 40 CFR 136; or in the case of sludge use or disposal,
approved under 40 CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been
specified in this permit [40 CFR 122.41].
To meet the intent of the monitoring required by this permit, all test procedures must produce minimum detection
and reporting levels that are below the permit discharge requirements and all data generated must be reported down
to the minimum detection or lower reporting level of the procedure. If no approved methods are determined
capable of achieving minimum detection and reporting levels below permit discharge requirements, then the most
sensitive (method with the lowest possible detection and reporting level) approved method must be used.
Penalties for Tampering
The CWA provides that any person who falsifies, tampers with, or knowingly renders inaccurate, any monitoring
device or method required to be maintained under this permit shall, upon conviction, be punished by a fine of not
more than $10,000 per violation, or by imprisonment for not more than two years per violation, or by both. If a
conviction of a person is for a violation committed after a first conviction of such person under this paragraph,
punishment is a fine of not more than $20,000 per day of violation, or by imprisonment of not more than 4 years,
or both [40 CFR 122.41]. .
6. Records Retention
Except for records of monitoring information required by this permit related to the Permittee's sewage sludge use
and disposal activities, which shall be retained for a period of at least five years (or longer as required by 40 CFR
503), the Permittee shall retain records of all monitoring information, including:
➢ all calibration and maintenance records
➢ all original strip chart recordings for continuous monitoring instrumentation
➢ copies of all reports required by this permit
➢ copies of all data used to complete the application for this permit
These records or copies shall be maintained for a period of at least 3 years from the date of the sample,
measurement, report or application. This period may be extended by request of the Director at any time [40 CFR
122.41].
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7. Recording Results
For each measurement or sample taken pursuant to the requirements of this permit, the Permittee shall record the
following information [40 CFR 122.41]:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The individual(s) who performed the analyses;
e. The analytical techniques or methods used;. and
f. The results of such analyses.
8. Inspection and Entry
The Permittee shall allow the Director, or an authorized representative (including an authorized contractor acting as
a representative of the Director), upon the presentation of credentials and other documents as may be required by
law, to;
a. Enter, at reasonable times, upon the Permittee's premises where a regulated facility or activity is located or
conducted, or where records must be kept under the conditions of this permit;
b. Have access to and copy, at reasonable times, any records that must be kept under the conditions of this permit;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control equipment), practices,
or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as otherwise
authorized by the CWA, any substances or parameters at any location [40 CFR 122.41(i)].
Section E Reporting Requirements
1. Change in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit. The discharge of
any pollutant identified in this permit more frequently than or at a level in excess of that authorized shall constitute
a violation of the permit.
2. Planned Changes
The Permittee shall give notice to the Director as soon as possible of any planned physical alterations or additions
to the permitted facility [40 CFR 122.41(1)]. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for new sources at 40 CFR
122.29(b); or
b. The alteration or addition could significantly change the nature or increase the quantity of pollutants
discharged. This notification applies to pollutants subject neither to effluent limitations in the permit, nor to
notification requirements under 40 CFR 122.42(a)(1); or
c. The alteration or addition results in a significant change in the Permittee's sludge use or disposal practices, and
such alteration, addition or change may justify the application of permit conditions that are different from or
absent in the existing permit, including notification of additional use or disposal sites not reported during the
permit application process or not reported pursuant to an approved land application plan.
3. Anticipated Noncompliance
The Permittee shall give advance notice to the Director of any planned changes to the permitted facility or other
activities that might result in noncompliance with the permit [40 CFR 122.41(1)(2)].
4. Transfers
This permit is not transferable to any person without prior written notice to and approval from the Director in
accordance with 40 CFR 122.61. The Director may condition approval in accordance with NCGS 143-215.1, in
particular NCGS 143-215.1(b)(4)b.2., and may require modification or revocation and reissuance of the permit, or
a minor modification, to identify the new permittee and incorporate such other requirements as may be necessary
under the CWA [40 CFR 122.41(1)(3), 122.61 ] or state statute.
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5. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit [40 CFR 122.41(1)(4)].
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part II.D.2) or forms
provided by the Director for reporting results of monitoring of sludge use or disposal practices.
b. If the Permittee monitors any pollutant more frequently than required by this permit using test procedures
approved under 40 CFR Part 136 and at a sampling location specified in this permit or other appropriate
instrument governing the discharge, the results of such monitoring shall be included in the calculation and
reporting of the data submitted on the DMR.
6. Twenty-four Hour Reporting
a. The Permittee shall report to the Director or the appropriate Regional Office any noncompliance that
potentially threatens public health or the environment. Any information shall be provided orally within 24
hours from the time the Permittee became aware of the circumstances. A written submission shall also be
provided within 5 days of the time the Permittee becomes aware of the circumstances. The written submission
shall contain a description of the noncompliance, and its cause; the period of noncompliance, including exact
dates and times, and if the noncompliance has not been corrected, the anticipated time it is expected to
continue; and steps taken or planned to reduce, eliminate, and prevent reoccurrence of the noncompliance [40
CFR 122.41(1)(6)].
b. The Director may waive the written report on a case -by -case basis for reports under this section if the oral
report has been received within 24 hours.
c. Occurrences outside normal business hours may also be reported to the Division's Emergency Response
personnel at [phone], [phone] or [phone].
7. Other Noncompliance
The Permittee shall report all instances of noncompliance not reported under Part II.E.5 and 6. of this permit at the
time monitoring reports are submitted. The reports shall contain`the information listed in Part II.E.6. of this permit
[40 CFR 122.41(l)(7)].
8. Other Information
Where the Permittee becomes aware that it failed to submit any relevant facts in a permit application, or submitted
incorrect information in a permit application or in any report to the Director, it shall promptly submit such facts or
information [40 CFR 122.41(1)(8)].
9. Noncompliance Notification
The Permittee shall report by telephone to either the central office or the appropriate regional office of the Division
as soon as possible, but in no case more than 24 hours or on the next working day following the occurrence or first
knowledge of the occurrence of any of the following:
a. Any occurrence at the water pollution control facility which results in the discharge of significant amounts of
wastes which are abnormal in quantity or characteristic, such as the dumping of the contents of a sludge
digester; the known passage of a slug of hazardous substance through the facility; or any other unusual
circumstances.
b. Any process unit failure, due to known or unknown reasons, that render the facility incapable of adequate
wastewater treatment such as mechanical or electrical failuresof pumps, aerators, compressors, etc.
c. Any failure of a pumping station, sewer line, or treatment facility resulting in a by-pass without treatment of all
or any portion of the influent to such station or facility.
Persons reporting such occurrences by telephone shall also file a written report within 5 days following first
knowledge of the occurrence. Also see reporting requirements for municipalities in Part IV.C.2.c. of this permit.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3 (a)(2) or Section 308 of the Federal Act, 33
USC 1318, all reports prepared in accordance with the terms shall be available for public inspection at the offices
of the Division. As required by the Act, effluent data shall not be considered confidential. Knowingly making any
false statement on any such report may result in the imposition of criminal penalties as provided for in NCGS 143-
215.1(b)(2) or in Section 309 of the Federal Act.
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11. Penalties for Falsification of Reports
The CWA provides that any person who knowingly makes any false statement, representation, or certification in
any record or other document submitted or required to be maintained under this permit, including monitoring
reports or reports of compliance or noncompliance shall, upon conviction, be punished by a fine of not more than
$25,000 per violation, or by imprisonment for not more than two years per violation, or by both [40 CFR 122.41].
12. Annual Performance Reports
Permittees who own or operate facilities that collect or treat municipal or domestic waste shall provide an annual
report to the Permit Issuing Authority and to the users/customers served by the Permittee (NCGS 143-215.1 C). The
report shall summarize the performance of the collection or treatment system, as well as the extent to which the
facility was compliant with applicable Federal or State laws, regulations and rules pertaining to water quality. The
report shall be provided no later than sixty days after the end of the calendar or fiscal year, depending upon which
annual period is used for evaluation.
The report shall be sent to:
NC DENR / Division of Water Quality / Surface Water Protection Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
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PART III
OTHER REQUIREMENTS
Section A. Construction
a. The Permittee shall not commence construction of wastewater treatment facilities, nor add to the plant's treatment
capacity, nor change the treatment process(es) utilized at the treatment plant unless (1) the Division has issued an
Authorization to Construct (AtC) permit or (2) the Permittee is exempted from such AtC permit requirements
under Item b. of this Section.
b. In accordance with NCGS 143-215. 1 (a5) [SL 2011-394], no permit shall be required to enter into a contract for the
construction, installation, or alteration of any treatment work or disposal, system or to construct, install, or alter any
treatment works or disposal system within the State when the system's or work's principle function is to conduct,
treat, equalize, neutralize, stabilize, recycle, or dispose of industrial waste or sewage from an industrial facility and
the discharge of the industrial waste or sewage is authorized under a permit issued for the discharge of the
industrial waste or sewage into the waters of the State. Notwithstanding the above, the permit issued for the
discharge may be modified if required by federal regulation.
c. Issuance of an AtC will not occur until Final Plans and Specifications for the proposed construction have been
submitted by the Permittee and approved by the Division.
Section B. Groundwater Monitoring
The Permittee shall, upon written notice from the Director, conduct groundwater monitoring as may be required to
determine the compliance of this NPDES permitted facility with the current groundwater standards.
Section C. Changes in Discharges of Toxic Substances
The. Permittee shall notify the Permit Issuing Authority as soon as it knows or has reason to believe (40 CFR 122.42):
a. That any activity has occurred or will occur which would result in the discharge, on a routine or frequent basis, of
any toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the following
"notification levels";
(1) One hundred micrograms per liter (100 µg/L);
(2) Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile; five hundred micrograms per liter
(500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and one milligram per liter (1 mg/L) for
antimony;
(3) Five times the maximum concentration value reported for that pollutant in the permit application.
b. That any activity has occurred or will occur which would result in any discharge, on a non -routine or infrequent
basis, of a toxic pollutant which is not limited in the permit, if that discharge will exceed the highest of the
following "notification levels';
(1) Five hundred micrograms per liter (500 µg/L);
(2) One milligram per liter (1 mg/L) for antimony;
(3) Ten times the maximum concentration value reported for that pollutant in the permit application.
Section D. Facility Closure Requirements
The Permittee must notify the Division at least 90 days prior to the closure of any wastewater treatment system covered
by this permit. The Division may require specific measures during deactivation of the system to prevent adverse
impacts to waters of the State. This permit cannot be rescinded while any activities requiring this permit continue at the
permitted facility.
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PART IV
SPECIAL CONDITIONS FOR MUNICIPAL FACILITIES
Section A. Definitions
In addition to the definitions in Part 11 of this permit, the following definitions apply to municipal facilities:
Indirect Discharge or Industrial User
Any non -domestic source that discharges wastewater containing pollutants into a POTW regulated under section
307(b), (c) or (d) of the CWA. [40 CFR 403.3 (i) and 0) and 15A NCAC 02H .0903(b)(11)]
Interference
Inhibition or disruption of the POTW treatment processes; operations; or its sludge process, use, or disposal which
causes or contributes to a violation of any requirement of the Permittee's (or any satellite POTW's if different from the
Permittee) NPDES, collection system, or non -discharge permit or prevents sewage sludge use or disposal in
compliance with specified applicable State and Federal statutes, regulations, or permits. [I 5A NCAC 02H
.0903(b)(14)]
Pass Through
A discharge which exits the POTW into waters of the State in quantities or concentrations which, alone or with
discharges from other sources, causes a violation, including an increase in the magnitude or duration of a violation, of
the Permittee's (or any satellite POTW's, if different from the Permittee) NPDES, collection system, or non -discharge
permit. [15A NCAC 02H .0903(b)(23)]
Publicly Owned Treatment Works (POTW)
A treatment works as defined by Section 212 of the CWA, which is owned by a State or local government organization.
This definition includes any devices and systems used in the storage, treatment, recycling and reclamation of municipal
sewage or industrial wastes of a liquid nature. It also includes the collection system, as defined in 15A NCAC 2T
.0402, only if it conveys wastewater to a POTW treatment plant. The term also means the local government
organization, or municipality, as defined in section 502(4) of the CWA, which has jurisdiction over indirect discharges
to and the discharges from such a treatment works. In this context, the organization may be the owner of the POTW
treatment plant or the owner of the collection system into which an indirect discharger discharges. This second type of
POTW may be referred to as a "satellite POTW organization." [15A NCAC 02H .0903(b)(26)]
"Significant Industrial User" or "SIU"
An Industrial User that discharges wastewater into a publicly owned treatment works and that [15A NCAC 02H
.0903(b)(33)]:
1. Discharges an average of 25,000 gallons per day or more of process wastewater to the POTW (excluding sanitary,
noncontact cooling and boiler blowdown wastewaters); or
2. Contributes process wastewater which makes up five percent or more of the NPDES or non -discharge permitted
flow limit or organic capacity of the POTW treatment plant. In this context, organic capacity refers to BOD, TSS
and ammonia; or
3. Is subject to categorical standards under 40 CFR Part 403.6 and 40 CFR Parts 405-471; or
4. Is designated as such by the Permittee on the basis that the Industrial User has a reasonable potential for adversely
affecting the POTW's operation or for violating any pretreatment standard or requirement, or the POTW's effluent
limitations and conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options;
5. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraphs 1 or 2 of this definition above has no reasonable potential for adversely affecting the
POTW's operation or for violating any pretreatment standard or requirement, the POTW's effluent limitations and
conditions in its NPDES or non -discharge permit, or to limit the POTW's sludge disposal options, and thus is not a
Significant Industrial User (SI U); or
6. Subject to approval under 15A NCAC 02H .0907(b), the Permittee may determine that an Industrial User meeting
the criteria in paragraph 3 of this definition above meets the requirements of 40 CFR Part 403.3(v)(2) and thus is a
non -significant categorical Industrial User.
Section B. Publicly Owned Treatment Works (POTWs)
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All POTWs must provide adequate notice to the Director of the following [40 CFR 122.42(b)]:
Any new introduction of pollutants into the POTW from an indirect discharger, regardless of the means of
transport, which would be subject to section 301 or 306 of CWA if it were directly discharging those pollutants;
and
Any substantial change in the volume or character of pollutants being introduced by an indirect discharger as
influent to that POTW at the time of issuance of the permit.
For purposes of this paragraph, adequate notice shall include information on (1) the quality and quantity of effluent
introduced into the POTW, and (2) any anticipated impact that may result from the change of the quantity or
quality of effluent to be discharged from the POTW.
Section C. Municipal Control of Pollutants from Industrial Users.
1. Effluent limitations are listed in Part I of this permit. Other pollutants attributable to inputs from Industrial Users
discharging to the POTW may be present in the Permittee's discharge. At such time as sufficient information
becomes available to establish limitations for such pollutants, this permit may be revised to specify effluent
limitations for any or all of such other pollutants in accordance with best practicable technology or water quality
standards.
2. Prohibited Discharges
a. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibition against the
introduction of pollutants or discharges into the waste treatment system or waste collection system which
cause or contribute to Pass Through or Interference as defined in 15A NCAC 02H .0900 and 40 CFR 403. [40
CFR 403.5(a)(1)]
b. The Permittee shall develop and enforce their Pretreatment Program to implement the prohibitions against the
introduction of the following wastes in the waste treatment or waste collection system [40 CFR 403.5(b)]:
(1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to,
wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade
using the test methods sp6cified in 40 CFR 261.21;
(2) Pollutants which cause corrosive structural damage to the POTW, but in no case discharges with pH lower
than 5.0, unless the works is specifically designed to accommodate such discharges;
(3) Solid or viscous pollutants in amounts which cause obstruction to the flow in the POTW resulting in
Interference;
(4) Any pollutant, including oxygen demanding pollutants (BOD, etc.) released in a Discharge at a flow rate
and/or pollutant concentration which will cause Interference with the POTW;
(5) Heat in amounts which will inhibit biological activity in the POTW resulting in Interference, but in no
case heat in such quantities that the temperature at the POTW Treatment Plant exceeds 40°C (104°F)
unless the Division, upon request of the POTW, approves alternate temperature limits;
(6) Petroleum oil, non -biodegradable cutting oil, or products of mineral oil origin in amounts that will cause
Interference or Pass Through;
(7). Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that
may cause acute worker health and safety problems; or
(8) Any trucked or hauled pollutants, except at discharge points designated by the POTW.
c. The Permittee shall investigate the source of all discharges into the POTW, including slug loads and other
unusual discharges, which have the potential to adversely impact the Permittee's Pretreatment Program and/or
the operation of the POTW.
The Permittee shall report such discharges into the POTW to the Director or the appropriate Regional Office.
Any information shall be provided orally within 24 hours from the time the Permittee became aware of the
circumstances. A written submission shall also be provided within 5 days of the time the Permittee becomes
aware of the circumstances. The written submission shall contain a description of the discharge; the
investigation into possible sources; the period of the discharge, including exact dates and times; if the
discharge has not ceased, the anticipated time it is expected to continue; and steps taken or planned to reduce,
eliminate, and prevent reoccurrence of the noncompliance,
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3. With regard to the effluent requirements listed in Part I of this permit, it may be necessary for the Permittee to
supplement the requirements of the Federal Pretreatment Standards (40 CFR, Part 403) to ensure compliance by
the Permittee with all applicable effluent limitations. Such actions by the Permittee may be necessary regarding
some or all of the industries discharging to the municipal system.
4. The Permittee shall require any Industrial User (IU) discharging to the POTW to meet Federal Pretreatment
Standards developed under Section 307(b) of the Act as amended (which includes categorical standards and
specific local limits, best management practices and narrative requirements). Prior to accepting wastewater from
any Significant Industrial User (SIU), the Permittee shall either develop and submit to the Division a new
Pretreatment Program or, as necessary, a modification of an existing Pretreatment Program, for approval as
required under section D below as well as 15A NCAC 02H .0907(a) and (b). [40 CFR 122.440)(2)]
5. This permit shall be modified, or alternatively, revoked and reissued, to incorporate or modify an approved POTW
Pretreatment Program or to include a compliance schedule for the development of a POTW Pretreatment Program
as required under Section 402 (b)(8) of the CWA and implementing regulations or by the requirements of the
approved State pretreatment program, as appropriate.
Section D. Pretreatment Programs
Under authority of sections 307 (b) and (c) and 402(b)(8) of the CWA and implementing regulations 40 CFR 403,
North Carolina General Statute 143-215.3(14) and implementing regulations 15A NCAC 02H .0900, and in accordance
with the approved pretreatment program, all provisions and regulations contained and referenced in the pretreatment
program submittal are an enforceable part of this permit. [40 CFR 122.440)(2)]
The Permittee shall operate its approved pretreatment program in accordance with Section 402(b)(8) of the CWA, 40
CFR 403, 15A NCAC 02H .0900, and the legal authorities, policies, procedures, and financial provisions contained in
its pretreatment program submission and Division approved modifications thereof. Such operation shall include but is
not limited to the implementation of the following conditions and requirements. Terms not defined in Part II or Part IV
of this permit are as defined in 15A NCAC 02H .0903 and 40 CFR 403.3.
1. Sewer Use Ordinance (SUO)
The Permittee shall maintain adequate legal authority to implement its approved pretreatment program. [15A
NCAC 02H .0903(b)(32), .0905 and .0906(b)(1); 40 CFR 403.8(f)(1) and 403.9(b)(1) and (2)]
2. Industrial Waste Survey(IWS)
The Permittee shall implement an IWS consisting of the survey of users of the POTW collection system or
treatment plant, as required by 40 CFR 403.8(f)(2)(i-iii) and 15A NCAC 02H .0905 [also 40 CFR 122.440)(1)],
including identification of all Industrial Users that may have an impact on the POTW and the character and amount
of pollutants contributed to the POTW by these Industrial Users and identification of those Industrial Users
meeting the definition of SIU. Where the Permittee accepts wastewater from one or more satellite POTWs, the
IWS for the Permittee shall address all satellite POTW services areas, unless the pretreatment program in those
satellite service areas is administered by a separate Permittee with an approved Pretreatment Program. The
Permittee shall submit a summary of its IWS activities to the Division at least once every five years, and as
required by the Division. The IWS submission shall include a summary of any investigations conducted under
paragraph C.2.c. of this Part. [15A NCAC 02H .0903(b)(13), .0905 and .0906(b)(2); 40 CFR 403.8(f)(2) and 403.9]
3. Monitoring Plan
The Permittee shall implement a Division -approved Monitoring Plan for the collection of facility specific data to
be used in a wastewater treatment plant Headworks Analysis (HWA) for the development of specific pretreatment
local limits. Effluent data from the Plan shall be reported on the DMRs (as required by Parts II.D and II.E.5.). [15A
NCAC 02H .0903(b)(16), .0906(b)(3) and .0905]
4. Headworks Analysis (HWA) and Local Limits
The Permittee shall obtain Division approval of a HWA at least once every five years, and as required by the
Division. Within 180 days of the effective date of this permit (or any subsequent permit modification) the
Permittee shall submit to the Division a written technical evaluation of the need to revise local limits (i.e., an
updated HWA or documentation of why one is not needed) [40 CFR 122.44]. The Permittee shall develop, in
accordance with 40 CFR 403.5(c) and 15A NCAC 02H .0909, specific Local Limits to implement the prohibitions
listed in 40 CFR 403.5(a) and (b) and 15A NCAC 02H .0909. Pursuant to 40 CFR 403.5, local limits are
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enforceable Pretreatment Standards as defined by 40 CFR 403.3(1). [15A NCAC 02H .0903(b)(10), .0905, and
.0906(b)(4)]
5. Industrial User Pretreatment Permits (IUP) & Allocation Tables
In accordance with NCGS 143-215.1, the Permittee shall issue to all Significant Industrial Users, permits for
operation of pretreatment equipment and discharge to the Permittee's collection system or treatment works. These
permits shall contain limitations,, sampling protocols, reporting requirements, appropriate standard and special
conditions, and compliance schedules as necessary for the installation of treatment and control technologies to
assure that theirwastewater discharge will meet all applicable pretreatment standards and requirements. The
Permmttee shall maintain a current Allocation Table (AT) which summarizes the results of the 14WA and the limits
from all IUPs. Permitted IUP loadings for each parameter cannot exceed the treatment capacity of the POTW as
determined by the HWA. [15A NCAC 02H .0906(b)(6), .0909, .0916, and .0917; 40 CFR 403.5, 403.8(f)(1)(iii);
NCGS 143-215.67(a)]
6. Authorization to Construct (AtC)
The Permittee shall ensure that an Authorization to. Construct permit (AtQ is issued to all applicable Industrial
Users for the construction or modification of any pretreatment facility. Prior to the issuance of an AtC, the
proposed pretreatment facility and treatment process must be evaluated for its capacity to, comply with all
Industrial User Pretreatment Permit (IUP) limitations. [15A NCAC 02H .0906(b)(7) and .0905; NCGS 143-
215.1(a)(8)],
7. POTW In pection & Monitoring of their iUs
The Permittee shall conduct inspection, surveillance, and monitoring activities as described in its Division
approved pretreatment program in order to determine, independent of information supplied by Industrial Users,
compliance with applicable pretreatment standards. [15A NCAC 02H .0908(e); 40 CFR 403.8(f)(2)(v)] The
Permittee must:
a. Inspect all "Significant Industrial Users (SIUs) at least once per calendar year;
b. Sample all Significant Industrial Users (SIUs) at least once per calendar year for all SIU permit -limited
parameters including flow except as allowed under 15A NCAC .0908(e); and
c. At least once per year, document an evaluation of any non -significant. categorical Industrial User, for
compliance with the requirements in 40 CFR 403.3(v)(2), and either continue or revoke the designation as non-
significant.
8.. IU Self Monitoringand, nd Reporting
The Permittee shall require all Industrial Users to comply with the applicable monitoring and reporting
requirements outlined in the Division -approved pretreatment program, the industry's pretreatment.permit, or in 15A
NCAC 02H .0908. [15A NCAC 02H .0906(b)(5) and .0905; 40 CFR 403.8(f)(1)(v) and (2)(iii); 40 CFR
122.440)(2) and 40 CFR 403.12]
9. Enforcement. Response Plan (ERP)
The Permittee shall enforce and obtain appropriate remedies for violations of all pretreatment standards
promulgated pursuant to section 307(b) and (c) of the CWA (40 CFR 405 et. seq.), prohibitive discharge standards
as set forth in 40 CFR 403.5 and 15A NCAC 02H .0909, specific local' limitations, and other pretreatment
requirements. All remedies, enforcement actions and other, shall be consistent with the Enforcement Response
Plan (ERP) approved by the Division. [1.5A NCAC 0214.0903(b)(7), .0906(b)(8). and .0905:; 40 CFR 403.8(f)(5)]
10. Pretreatment Annual Reports (PAR)
The Permittee shall reportto the Division in accordance with 15A NCAC 02H .0908. In lieu of submitting annual
reports, Modified Pretreatment Programs developed under 15A NCAC 02H .0904 (b) may be required to submit a
partial annual report or to meet with Division personnel periodically to discuss enforcement of pretreatment
requirements and other pretreatment implementation issues.
For all other active pretreatment programs, the Permittee shall submit two copies of a Pretreatment Annual Report
(PAR) describing its pretreatment activities over the previous calendar year to the Division at the following
address:
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_ ---)ES Permit Standard Conditions
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NC DENR / Division of Water Quality / Surface Water Protection Section
Pretreatment, Emergency Response,, and Collection.Systems (PERCS) Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
These reports shall be submitted by March 1 of each year and shall contain the following:
a. Narrative
A narrative summary detailing actions taken, or proposed, by the Permittee to correct significant non-
compliance and to ensure compliance with pretreatment requirements;
b. Pretreatment Program Summary (PPS)
A pretreatment program summary (PPS) on forms or in a format provided by the Division;
c. Significant. Non -Compliance Report (SNCR)
A list of Industrial Users (IUs) in significant noncompliance (SNC) with pretreatment requirements, and the
nature of the violations on forms or in a format provided by the Division;
d. Industrial Data SpMMan Forms (IDSF)
Monitoring data from samples collected by both the POTW and the Significant Industrial. Users (SIUs). These
analytical results must be reported on Industrial Data Summary Forms (IDSF) or on other forms or in a format
provided by the Division;
e. Other Information
Copies of the POTW's allocation table, new or modified enforcement compliance schedules, public notice of
IUs in SNC, a summary of data or other information related to significant noncompliance determinations for
IUs that are not considered SIUs, and any other information; upon request; which in the opinion of the Director
is needed to determine compliance with the pretreatment implementation requirements of this permit;
11. Public Notice
The Permittee shall publish annually a list of Industrial, Users; (lUs) that were in significant noncompliance (SNC)
as defined in the P'ermittee's Division -approved Sewer Use Ordinance with applicable pretreatment requirements
and standards during the previous twelve month period. This list shall be published within four months of the
applicable twelve-month period. [15A NCAC 02H .0903(b)(34), .0908(b)(5) and .0905 and 40 CFR
403.8(f)(2)(viii)]
12. Record Keeping
The Permittee shall retain for a minimum of three years records of monitoring activities and results, along with
support information including general records, water quality records, and records of industrial impact on the
POTW and shall retain all other Pretreatment Program records as required by 15A NCAC 02H .0908(f). [15A
NCAC 02H .0908(f); 40 CFR 403.12(o)]
13. Pretreatment Program Resources
The. Permittee shall maintain adequate funding and qualified personnel to accomplish the objectives of its approved
pretreatment program. and retain a written description of those current levels of inspection. [I 5A NCAC 02H
0906(b)(9) and (10) and .0905; 40 CFR 403.8(f)(3), 4039(b)(3)]
14. Modification to Pretreatment Programs
Modifications to the approved pretreatment program including but not limited to local limits modifications, POTW
monitoring rof their Significant Industrial Users (SIUs), and Monitoring Plan modifications, shall be considered a
permit modification and shall be governed by 40 CFR 403.18, 15 NCAC 02H .0114 and 15A NCAC 02H .0907.
Version 11/09/2011

NPDES Permit Renewal
Regional Office Comments
Permit number:.; NCO027539 uRegi�r _ Asheville ®ate.`; March 28, 2013
V
Fabilr names Hiwassee Hydro Plant
y Stiff.; Linda Wiggs =
'Coubtr :� Cherokee Wanda Frazier
RJim McKay j Ft�upervis®>r "j Chuck Cranford
Q Issue permit according to Draft
❑ Make changes as noted below
Class 1 (100% Industrial Process & Commercial)
SIC: 4911 Electric Services Primary: 48 (25 employees)
WWTP type: Hydroelectric turbine operation with 5 outfalls:
Outfall 001: discharge from power house unit 1 floor drains and wheel
pit leakage
Outfall 002: discharge from draft tube unwatering operations
Outfalls 003 & 004: discharge from units 1 & 2 generator air and bearing
non -contact cooling water
Outfall 005: discharge from sump and station sump from: upper gallery
drains, lower gallery drains, unit 2 floor drains, and unit 2 wheel pit
leakage
WWTP location: 600 Powerhouse Road @ the Hiwassee Dam, west of Hiwassee
Village, near Murphy 28906
The lat & long on the 1-28-13 fact sheet is slightly different. The map is ok.
Latitude: 350 09' 01" N
Longitude: 84010' 41" W
Also, the fact sheet address:
(400 West Summit Hill Drive, Knoxville, TN 37902)
is different from the permittee's 2012 application.
Jason Neely, Plant Manager
TVA Hiwassee Hydro Plant
1101 Market Street, LP 3D
Chattanooga, TN 37402
The draft permit looks good. ARO recommends issuance.
SA M-Templates&FormsTermit Review\NPDESPennitReview_ROComments.Feb2012.docx

VC[DENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Pat McCrory Charles Wakild, P. E. John E. Skvarla, III
Governor Director Secretary
February 13, 2013
Mr. Jason Neely
Plant Manager
Hiwassee Hydro Plant
1101 Market Street LP 3D
Chattanooga, Tennessee 37402
Subject: Draft NPDES Permit
Permit NCO027359
Hiwassee Hydro Plant
Cherokee County
Facility Class PCNC
Dear Mr. Neely:
Enclosed with this letter is a copy of a draft permit renewal for the Hiwassee Hydro Plant. Please review
the draft very carefully to ensure thorough understanding of the conditions and requirements it contains.
This draft renewal contains no changes from your current permit, other than some minor
narrative updates.
Please submit any comments to me no later than 30 days from receipt of this notice. Comments should be
sent to the address listed at the bottom of this page. If no adverse'comments are received from the public
or from you, this permit will likely be issued in March, with an effective date of April 1, 2013. If you
have any questions or comments concerning this draft permit, you may contact me at the telephone
number [phone], or by email at James.McKay@ncdenngov.
Sincerely,
Jun McKay
Complex NPDES Permitting
cc: NPDES Unit
Asheville Regional Office/Surface Water Protection - via email
Steve Reid - via email
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N, Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet www.ncwaterguality.org
An Equal Opportunity 1 Affirmative Action Employer
No thCarohna

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
DRAFT PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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
Tennessee Valley Authority
is hereby authorized to discharge wastewater from a facility located at
Hiwassee Hydro Plant
at the Hiwassee Dam
west of Hiwassee Village
Cherokee County
to receiving waters designated as the Hiwassee River in the Hiwassee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I,11, 111, and IV hereof.
This permit shall become effective.
This permit and authorization to discharge shall expire at midnight on August 31, 2017.
Signed this day.
DRAFT
Charles Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO027359
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.
Tennessee Valley Authority is hereby authorized to:
1. Continue to discharge water from a station sump which receives flow from wheel pit leakage
and power house floor drains (Outfall 001), discharge unwatering sump water (Outfall 002),
discharge non -contact cooling water (Outfalls 003 and 004), and discharge station sump
water, as well as upper and lower gallery drain water (Outfall 005), located at Hiwassee
Hydro Plant, at the Hiwassee Dam, west of Hiwassee Village, Cherokee County and
2. Discharge from said -facility at the location specified on the attached map into the Hiwassee
River which is classified C waters in the Hiwassee River Basin.
Page 2 of 7

Permit NCO027359
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Page 3 of 7

Permit NCO027359
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - DRAFT
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the station sump (receiving flow from Unit 1 floor drains and wheel pit leakage) from Outfall
001. Such discharges shall be limited and monitored by the Permittee as specified below:
�«—OWN
� ���OIVITO.1�iING.REQUIltE1V�ENTS
Flow
Quarterly'
Estimate
E
Oil and Grease2
15 m
20 mQuarterly
E
H3
I
I E
Notes:
1 Sample locations: E—Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (D1192) form andpostmarked no later than the 30"' day following the completed reporting period. The
first D1lflZ is due on the 30'" day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.
Page 4 of 7

Permit NCO027359
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - DRAFT
During the period beginning on the effective date of the permit and lasting until expiration, the Pennittee is authorized to
discharge waters from draft tube unwatering .operations from Outfall 002. Such discharges shall be limited and
monitored by the Permittee as specified below:
yrkt :�+' i
k tt; 2 key$NOXtth>y
� :y
.y `�^'� - 4 �Y � � c^
WBe ,y(
^:. #k Uv3"$''.Y.`•^�.
�easUrgneu
Shlte r a�le�<'.
Flow
Quarterly
Estimate
E
Oil and Grease!
15 m
20 m
Quarterly
E
pH
E
Notes:
i Sample locations: E — Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30`J' day following the completed reporting period. The
first DAM is due on the 30"' day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DAV? submitted.
There shall be no discharge offloating solids or visible foam (other than trace amounts) in the effluent.
Page 5 of 7

Permit NCO027359
A. (3). EFFLUENT LMTATIONS AND MONITORING REQUIREMENTS - DRAFT
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge once -through cooling waters from generator air. cooling and bearing cooling from Outfalls 003 and 004.
Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLiIEI�Tx Yj Y
�++r+Yl S ?, P Y
Y 1 MONITOhiING ]tEQULREMEIVT t
rf
:
Mokh� WeekX ' 77,
Dail y.
S
Mesureme S ple Sa pae
�>
f�
�
_. Ay..era e4 Maximums
L
Flow
Semi-annually
Estimate
E
Temperature 2
2
2
E
H3
E
Notes:
1 Sample locations: E — Effluent.
The temperature of the effluent will be regulated so that the temperature of the receiving stream does not increase more than 2.80C
above the natural water temperature. Receiving water temperature shall not exceed a maximum of 29 C due to the facility's
operation.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form andpostmarked no later than the 30"' day following the completed reporting period. The
first DMR-is due on the 30"' day of the month following the calendar quarter in which the permit was issued.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.
Page 6 of 7

Permit NCO027359
A. (4). EFFLUENT LIMITATIONS AND MONITORI[NNG REQUIREMENTS - DRAFT
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the lower and upper gallery drains, and waters from Unit 2 floor drains and wheel pit
leakage, from Otitfall 005. Such discharges shall be limited and monitored by the Permittee as specified below:
C
`> k MonthXy;; Weekly' ugly h Measuremeh 5amp e S mP 9MI,i
yera e..x Avera , ..Mstmum,;> _Fie uenc ,x< . r. 'r, .e> \ I,ocaton�,
Flow Quarterly Estimate E
Oil and Grease2 15 mg/L 20 m L Quarterly E
H3 E
Notes:
1 Sample locations: E —Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. 77tese practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
Mechanical cleaning operations which do not contribute any wastewater to the discharge are not limited by this permit.
Non -discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DAM) form and postmarked no later than the 30 day following the completed reporting period. The
first DMR is due on the 30"' day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent
Page 7 of 7

DRAFT FACT
DENR/DWQ
FOR NPDES PERNIIT DEVELOPMENT
'DES No. NCO027359
FAdlitybiformation
Appl cant/Facil ty-Name:,,*: Tennessee Valley Authority — Hiwassee Hydro Plant
A licait Address 400 West Summit Hill Drive; Knoxville, TN 37902
Fact htv.Address: Hiwassee Dam west of Hiwassee Village; Cherokee County, NC
BACKGROUND
The Hiwassee Hydro Plant produces electricity via hydraulic turbine generation. The facility produces
an average, of 662 megawatt -hours per day of power, with peak power generation at 3,604 megawatt -
hours per day. The Asheville Regional Office notes that most of the Hiwassee River's flow is run
through the facility for power production.
The plant has five permitted outfalls as follows: ,
001: waters from the station sump
002: waters from the draft tube unwatering operations
003 and 004: once through cooling water from generator air and bearing cooling
005: waters from upper galley drains and Unit 2 floor drains and pit leakage
None of the outfalls contain a limit for flow and all employ Best Management Practices (BMPs) rather
than monitoring for pH, oil and grease, and temperature. BMPs are accepted to confirm compliance as a
result of the physical construction of the hydroelectric dam. Each DMR report contains a statement
affirming that BMPs are being used on site. The staff report and permit fact sheet from the 1998 permit
renewal indicate that a general permit is not entirely appropriate for this facility due to using BMPs
instead of sampling for some outfalls, and difficulty sampling others.
Instream Monitorine and Verification of Existing Conditions and DM_ R Data Review
This facility discharges to the Hiwassee River (classified C) in. sub -basin 04-05-02 (Hiwassee River
Basin). The facility does not currently perform instream monitoring. Discharge Monitoring Reports
(DMRs) for flow (the only monitored parameter) were reviewed from 2010 to June 2012. Average flows
from the five outfalls are displayed below:
Flow Q4GD
Outfa11001 .
: Outfa11.002
Outfa11003.
Outfa11004 :
Out fall 005' :
0.4
0.003
3.96
0.29
0.1
Fact Sheet
NPDES N00027359 Draft Renewal
Page. ]

PERMITTING STRATEGY:
Waste Load Allocation (WLA)
The Division prepared the last WLA in- 1985. The previous and current effluent limits were based on
guidelines and water quality standards. The Division has judged previous parameters and limits to be
appropriate for renewal. The 2012 I iwassee River Basinwide Water Quality Plan reports that the
receiving stream is currently supporting all designated uses and provides no recommendations for this
discharger.
Reasonable Potential Analysis (RPA)
Since toxicants are not monitored in this discharge, no reasonable potential analysis was performed.
SUMMARY OF PROPOSED CHANGES
There are no proposed changes to this permit.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
February, 2013 (est)
April, 2013 (est)
If you have questions regarding any of the above information or on the attached permit, please contact
Jim McKay at [phone], or by email at [e-mail].
NAME:) m DATE:
REGIONAL OFFICE COMMENTS
NAME: DA
SUPERVISOR: DATE:
Fact Sheet
NPDES N00027359 Draft Renewal
1 Page 2 ���)

WA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director = Secretary
.��`� . •,t t ,r
March 7, 2012 i.
1� -7 3 ,i
MR. JASON NEELY PvIAfl 1 f
PLANT MANAGER L 2012
HIWASSEE HYDRO PLANT
1101 MARKET STREET LP 3DVv
Ate; rY sr�
EcTiO
CHATTANOOGA TN 37402
y ,
t d'
Subject: Receipt of permit renewal application
NPDES Permit NCO027359
Hiwassee Hydro Plant
Cherokee County
Dear Mr. Neely:
The NPDES Unit received your permit renewal application on February .13, 2012. A member of the
NPDES Unit will review your application. They will contact you if additional information is required to complete
your permit renewal. You should expect to receive a draft permit approximately 30-45 days before your existing
permit expires.
If you have any additional questions concerning renewal of the subject permit, please contact Jim McKay at
[phone]:
Sincerely,
Dina Sprinkle
Point Source Branch
cc: CENTRAL FILES
rAsheville_Reg onal_Office/Surface Water. Protecti n
NPDES Unit f T s
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: 9I M07-64921 Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity 1 Affirmative Action Employer
Nne
orthCarolina
Naturally

-Mina®sr ind-uasttr'W, 2M&nUT&ctunTh19 and c omram erciaR ffac Eitices.
WeR the c om pRette alpfpRicatAo a to:
K. C. Department of Environment and Natural Resources
Division off'Water Quality / KIPD S Unit
2627 Maifl Service Center, RaReigh, WC 276599-2617
1. Contact IInfforrmation-
Owner Name
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
1'11)1 S � IIIi T' ltIll -TE Z
Please print or type.
Tennessee Valley Authority
Hiwassee Hydro Plant
1101 Market Street, LP 3D
Chattanooga
Tennessee 37402
[phone]
[phone]
[e-mail]
2. Location of ffaciRity producing discharge -
Check here if same as above ❑
Street Address or State Road
City
State / Zip Code
County
600 Powerhouse Road
near Murphy
North Carolina, 28906
Cherokee
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name Tennessee Valley Authority
Mailing Address, 1101 Market Street, LP 3D
City Chattanooga
State / Zip Code Tennessee 37402
Telephone Number [phone]
Fax Number [phone]
4. Ownership Status:
Federal ® State ❑ Private ❑ Public ❑
Page 1 of 5 C-MI 10/08

MI LPIDPIS PERKHT PUC A HOR m SHORT FORM � Effignor Had-astdaR
Ijiaor industrial, manufacturing and commercial facilities.
S. standard E dustrial Classificatiom (SRCcode(s)o 4911 m Electric Services
6. Number of employees. 25
7. Describe the treatment system List all installed waste treatment components with capacities,
describe the processes that generate wastewaters. If the space provided is not sufficient attach a
separate sheet of paper with the system description.
Water discharged from ®utfalls 001, 002, and 005 includes floor drains, wheel pit
leakage, (.raft tube unwateriang operations, and lower and upper gallery drains collected in
sumps. Refer to the enclosed flow schematic. Oil absorbent pads are used in sumps and
points of equipment oil leaks. These pads are changed at least once per quarter in
addition to the removal of sediment to ensure that excessive pollutants are not
discharged to surface waters of the State. Rt is assumed that the oil absorbent pads treat
I00% of the volume before discharge at normal flow.
8. Es facility covered under federal effluent U mmitation guidelines? No ® Yes ❑
l£ yes, specify the category?
9. Principal product(s) produced. Electric Power
Principal raw immaterial(s) consumed: NIA
Briefly describe the manufacturing process(es)e
TVA's conventional hydro plants typically include a dam to control the flow of a river, a
powerhouse containing turbines and generators to make electricity, a switchyard to step up the
electricity's voltage for distribution to customers, and a large reservoir of water behind the dam.
Water from the upper reservoir £lows through a penstock (a large pipe connecting the reservoir
to the powerhouse) impacting the blades of a turbine. Water impacting the blades makes the
turbine rotate. A large diameter shaft connects the rotating turbine to a generator in the
powerhouse. The generator consists of a large rotating electromagnet (driven by the turbine)
located in the middle of an even larger set of stationary wire coils. When running at the proper
speed (typically around 100 revolutions per minute for TVA hydro generators), electricity is
produced in the coils at anywhere from about 13,000 to 23,000 volts. Generator leads take the
electricity to the switchyard where the voltage is increased and put into the TVA transmission
system for delivery to distributors across the Tennessee Valley. The water used to turn the
turbine then flows out of the powerhouse in a draft tube where it is released into the water
supply. Hiwassee Hydro Plaint has two units, one conventional hydroelectric unit, and one
reversible pump storage/hydroelectric unit.
Page 2 of 5 C-MI 10/08

Minor inad ustriail, ramaaufactu ri+ g and commrnmen ckR fae itieso
1' D. Amount of principal product produced or raw mmate7rA&R consumed
List specific amounts consumed and/or units of roduction over the last three ears
Product Produced or Raw Material
Consumed
AVERAGE
Product Produced or Raw If(ti atetriaR
Consumed
PEAK
per Day
662.328 kWh generation
3,604,000 kWh generation
per Month
20,145,806 kWh generation
53,957,000 kWh generation
per Year
241,750,000 kWh generation
326,906,000 kWh generation
11> Frequency of discharge- Continuous* ® Hntermittent ❑
11ff intermittent -
Days per weeik discharge occurs: Duration:* While individual discharges may not flow continuously, it is unlikely that there would be no discharge from
any outfall on any given day unless both units were in outage.
n2. Types of wastewater discharged to surface waters only
Discharge
Flow*
(GALLOWS PER DAB
Sanitary - monthly average
No discharge to surface water (subsurface disposal)
Utility water, etc. - monthly average
N/A
Process water - monthly average
432,000 (Outfall 001), 7,200,000 (Outfall 002**), and
1,641,000 (Outfall 005)
Stormwater - monthly average
N/A
Other - monthly average
Explain: Noncontact Cooling Water
4,250,000
Monthly Average
5,950,000
total discharge (all types)
Note: riows are esumatea for average operating conditions using pump rated capacity or design capacity. **Unwatering
operations (Outfall 002) are intermittent and typically occur approximately once every two years per unit. See attached flow
schematic.
13. Number of separate discharge points- 5 OuatfaH Identification nuumber(s) Outfalls 001,
002, 003, 004, and 005
14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Hiwassee River (See attached maRj
Page 3 of 5 C-MI 10l08

Minor in'nduIlstrtiaR, manuaffactunrAng and commesrci&R facilliUles.
ns. E$'fll.mentt Data �foT2 mew or proposed dAscharrges�
Provide data for the parameters listed. Temperature and pH shall be grab samples, for all other parameters 24-hou-r
composite sampling shall be used. If more than one analysis is reported, report daily maximum and monthly average.
If only one analysis is reported, report as daily maximum.
NOTE: Permittees requesting renewal should complete the table OA rLY forr the parameters
currrren0v monitored. Summarize the vast 3 uears of effluent data.
Parameter
Daily
Maximum m
Monthly
Average
Unfits of
Measurement
Biochemical Oxygen Demand (BOD5)
Chemical Oxygen Demand (COD)
Total Organic Carbon
TVA is applying foir permit renewal.
Currently no anaRyfical mmniton°ing is
a-equnired. Best Management Practices have
been implemented and visual inspections of
the tailrace have been performed) in
accordance with the current NPDES permi
Total Suspended Solids
Ammonia as N
Temperature (Summer)
Temperature (Winter)
pH
Fecal Coliform (If sanitary waste is
present)
Total Residual Chlorine (if chlorine is
used)
16. Last all permits, construction approvals and/or applications (check all that apply and provide permit
numbers or check none if not applicable):
Type PermAt Number Type Permit Number
Hazardous Waste (RCRA)
UIC (SDWA)
NPDES NCO027332
PSD (CAA)
Non -attainment program (CAA)
NESHAPS (CAA)
Ocean Dumping (MPRSA)
Dredge or fill (Section 404 or CWA)
Other
317. Last any chemicals that may be discharged (Please list and explain source and potential
amounts.)
Small amounts of Oil and Grease may be discharged from outfalls as oil containing equipment
is located on site. Visual monitoring has occurred and BMPs have been implemented
under the current permit. No visible sheens have been observed.
Page 4 of 5 C-MI 10/08

E92"IDES p R BT .- FLECATEOH o SHORT FORM C e Mkdir Rmdustr Pied
Minor industrial, mnarnuffasc tny-rimtg and- commnemia R ffa.CAHttieso
16. Is Cl is facility Roca tedl on Indian country? (check one)
Yes ❑ 1`40
119. Applicant Certification
II certify than II am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, cem plete, and accurate.
Jason D. Neely Plant Manager
Printed name of Person Signing Title
of Applicant
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by' a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.),
Page 5 of 5 C-MI 10/08

i
Upper
Gallery Drains
Lower
Gallery Drains
Intake from Hiwassee River
Sump
Outfall
1.440 MGD
�................................................> 005
1.641 MGD
Unit 2 Floor Drains
..........................
" " '
Sump
.....................................
0.2016 MGD
Unit 2 Wheel Pit ....................................................
Leakage
Unit 1 2.052 MGD
•_._._._._._._._._._._._._._._._._._._._._._._._._._._..� 003
Generator Air&
Bearing Cooling Water
. _ ............Unit 2 _ _ , _ . _ . _ . _ . _ . _ . e . _ . _ . _ . _ . e?•606 MGD 004
Draft Tube
Unwatering
Unwatering Operations
Sump
7.200 MGD
Unit 1 Floor Drains
And Wheel Pit Leakage
Potable � Sanitary Sewage Drains
Water
Station ......................... D 001
Sump.........................®.........................
0.432 MGD
Septic Tank
Symbols:
Raw River Water, Potable Water, Precipitation, Leakage, or Ground Water
...... Non -Contact Cooling Water
""""'•'• Other Wastewater
OMotor -Driven Pump
Notes:
1. All effluents discharge into the Hiwassee River.
2. Flows are based on pump -rated capacities and maximum design flows.
Subsurface Disposal Field
Tennessee Valley Authority
Hiwassee Hydro Plant
NPDES Permit No. NC 0027359
Cherokee County, North Carolina
January 2012

'�' `�f, _ ! lip ) ; �{d 6 d €� •'� I ',,,�4`�r ^% 'd � � ..
'-
- i �r1
v _
i R � `�..rre 5 �'�� Y j i � �l � .r-� 1 1 '•�`•- � 4� •� � -y � r{' �
i{i d"•+.f :�J�1 {1 i ( I �. ���_ � E_.__ tr� ' � L � `r
I I i.A x pfJW
!i' )) J • Plant Intake ck
aW Hiwassee Hydro Flan, t r
®utfalls 001 o 005 r t
�t ems.-�i`'� f;� _!• � ��jj '�^ ,~� f r.i !f { - � f 'L � p �,, �,! �I �J o
Tennessee Valley Authority
Hiwassee hydro Pliant — N00027359
Sate Grid/Quad: G2NW/Unaka, NC Drainage Basin: Hiwassee River
Latitude: 35009' 01" N
Longitude: 840 10' 41" W
Receiving Stream: Hiwassee River
Stream Class: C
l--5„�U1-:11
j�
Facility Location
not to scale
NPDES Permit No. NCO027359
Cherokee County

Draft NPDES
Subject: Draft NPDES
From: Keith Haynes <[e-mail]>
Date: Mon, 30 Jul 2007 10:47:15 -0400
To: Agyeman Adupoku <[e-mail]>
CC: Roger Edwards <[e-mail]>, Keith Haynes <[e-mail]>
The ARO has the following comments regarding NPDES Permits NCO027359 and NCO027332:
Both of these facilities could/should be covered under general permits, but several years ago TVA
insisted on individual permits. It is our recommendation that these facilities be covered under the
NCG500 permit; however, if we can't do that, then the monitoring requirements should be changed to
reflect the monitoring requirements of the general permit. I have talked with Susan W. about this and
she agrees.
Keith Haynes - }e>. , } ^ra e%
North Carolina Dept. of Environment and Natural Resources
Asheville Regional Office
Division of Water Quality - Water Quality Section
2090 U.S. 70 Highway
Swannanoa, NC 28778
Tel: [phone]
Fax: [phone]
Keith Haynes <[e-mail]>
NC DENR - Asheville Regional Office
Division of Water Quality - Water Quality Section
1 of 1 7/30/2007 10:47 AM

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Director
Division of Water Quality
July 18, 2007
Janet C. Herrin, P.E.
Senior Vice President River Operations
Tennessee Valley Authority
400 West Summit Hill Drive
Knoxville, Tennessee 37902-1401
Subject: Draft NPDES Permit
Permit NCO027359
Hiwassee Hydro Plant
Cherokee County
Dear Ms. Herrin:
Enclosed with this letter is a copy of a draft permit for the Hiwassee Hydro Plant. Please review
the draft very carefully to ensure thorough understanding of the conditions and requirements it contains.
The draft NPDES permit contains the following significant changes from your
current permit:
Special condition for oil and grease and pH monitoring has been deleted.
Please submit any comments to me no later than August 24, 2007. Comments should be sent to
the address listed at the bottom of this page. If no adverse comments are received from the public or
from you, this permit will likely be issued in September, with an effective date of October 1, 2007. If
you have any questions or comments concerning this draft permit, you may contact me at the telephone
number [phone] ext 508.
cc: NPDES Unit
�ill�le eei-oval �� f ice/Surface "� ater P�l:oteetion
Sincerely,
Agyeman Adu-Poku
Environmental Engineer
Western NPDES Program
iii[pppF(
1, a J,.
t','• J U L 2 0 2007
. WATER QUALITY SECTION
ASHEVILLE REGIONAL OFFICE
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwaterqualitv.ore Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper

111
a Permit N00027359
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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
Tennessee Valley Authority
is hereby authorized to discharge wastewater from a facility located at
Hiwassee Hydro Plant
at the Hiwassee Dam
west of Hiwassee Village
Cherokee County
to receiving waters designated as the Hiwassee River in the Hiwassee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I,11, III, and IV hereof.
This permit shall become effective
This permit and authorization to discharge shall'expire at midnight on August 31, 2012.
Signed this day
Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

0
Permit NCO027359
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.
Tennessee Valley Authority is hereby authorized to:
1. Continue to discharge water from a station sump which receives flow from wheel pit leakage
and power house floor drains (Outfall 001), discharge unwatering sump water (Outfall 002),
discharge non -contact cooling water (Outfalls 003 and 004), and discharge station sump
water, as well as upper and lower gallery drain water (Outfall 005), located at Hiwassee
Hydro Plant, at the Hiwassee Dam, west of Hiwassee Village, Cherokee County and
2. Discharge from said facility at the location specified on the attached map into the Hiwassee
River which is classified C waters in the Hiwassee River Basin.'

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Tennessee Valley Authority
Hiwassee Hydro Plant
State Grid/Ouad: G2NW/Unaka, NC Drainage Basin: Hiwassee River Basin
Latitude: 35'09'01" N Sub -Basin: 04-05-02
Longitude: 84* 10'41" W
Receiving Stream: Hiwassee River
Stream Class: C
Facility
Location
not to scale
rth j NPDES Permit No. NC0027359
Cherokee County

Permit NCO027359
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the station sump (receiving flow from Unit 1 floor drains and wheel pit leakage) from outfall(s)
serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT r
LIMITS b
MONITORING REQUIREMENTS
E
yp,
f, g<fl
sj
r is
Monthl
�' ` �Weekl�
Dail
Measurements
Sam le 7"
Sam le
Y,
, ,, Y
,.�� Yx
Yy� �
a4 -w '�°.
�k'
P
P ,
x
.
Flow
Quarterly'
Estimate
E
Oil and Grease2
15 m
20 mg/1
2
E
H3
E
Notes:
I Sample locations: E — Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility. Confirmation that a
visual inspection was conducted should be clearly noted on the Discharge Monitoring Report (DMR) form
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 3e day following the completed reporting period. The
first DMR is due on the 30`h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

Permit NCO027359
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from draft tube unwatering operations from outfall(s) serial number 002. Such discharges shall be
limited and monitored by the Permittee as specified below:
E b'LUENT
I�IMIT5
MONITORING REQi7IItEMENTS
CHARACTERISTICS
a 5a ✓ e r - r
':�A,r-
'`
Monthly;
�'Veekly
Datly a
Measuiemenf�
Sample
A
���
Maximum
Fre" iaenc
{
Vera
a _Avea"e,
T ef- ;Location
Flow
Quarterly
Estimate
E
Oil and Grease2
15 m l
20 m l
2
E
H3
E
Notes:
t Sample locations: E — Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility. Confirmation that a
visual inspection was conducted should be clearly noted on the Discharge Monitoring Report (DMR) form
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 3e day following the completed reporting period. The
first DMR is due on the 3e day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

L�
0 Permit NCO027359
A. (3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge once -through cooling waters from generator air cooling and bearing cooling from outfall(s) serial number
003 and 004. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFtiUENT �� �'
LIMIT,
M®1oTITO12ING i2E�QITIRRE�MhEloTTS R
,
§',,:�'!
Y
h..t,\^.,
'S^olI
CHARACTERISTICS
r u
r r • i r
s
Monthl
Weekl
Daily�Nieasureiaient�
Sample�5ample��
s
(
Flow
Semi-annually
Estimate
E
Tem erature2
2
2
E
g3
E
Notes:
1 Sample locations: E — Effluent.
2 The temperature of the effluent will be regulated so that the temperature of the receiving stream does not increase more than 2.80C
above the natural water temperature. Receiving water temperature shall not exceed a maximum of 29 C due to the facility's
operation.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge .
Monitoring Report (DMR) form and postmarked no later than the 30`h day following the completed reporting period. The
first DMR is due on the 30`h day of the month following the calendar quarter in which the permit -was issued.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

17�
►:J
Permit NCO027359
A. (4). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS . . -
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the lower and upper gallery drains, and waters from Unit 2 floor drains and wheel pit
leakage, from outfall(s) serial number 005. Such discharges shall be limited and monitored by the Permittee as specified
below:
EkFLUENT ti
LIlVIITS
MONITORINGREQUIREMENTS
CI3ARACTERISTICS
Monthly
Weeldy
Daily;
lileasurement
SaTp, g�y4v
p,Sample
,,
k
Avera e'
1Vlaximum
Fre
a
Average, z
,}
;
uenc
„ .T'" e
. Location,. :.
Flow
Quarterly
Estimate
E
Oil and Grease2
15 1
20 m
2
E
H3
E
Notes:
1 Sample locations: E — Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility. Confirmation that a
visual inspection was conducted should be clearly noted on the Discharge Monitoring Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
Mechanical cleaning operations which do not contribute any wastewater to the discharge are not limited by this permit.
Non -discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge -
Monitoring Report (DMR) form and postmarked no later than the 30`h day following the completed reporting period. The
first DMR is due on the 30 day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

4% ,
OF W ATFR • .. _._
Michael F. Easley, Governor
y y,f.c.+.6'x[ T1'..!Ta♦UI'4YPf1i+3.^FSw.va.X wnvV.m 1T•':.VT' MpW'4.}$Y 4t..
i u. �Wtlliamii Ross Jr., Secretary
rf North Carolina Department of Environment an Natural Resources
VEL teen H. Sullins, Director
J'0ivision of Water Quality
September 10, o S E P 1 9 2007.
Ms. Janet C. Herrin, P.E.
Senior Vice President River Operations
Tennessee Valley Authority
400 West Summit Hill Drive'
Knoxville, Tennessee 37902-1401
Dear Ms. Herrin:
WATER QUALITY SECTION
AS,u.EVILLF_ REGIONAL OFFICE
f
Subject: Issuance of NPDES Permit
Permit NCO027359
Hiwassee Hydro Plant
Cherokee County
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge 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 May 9; 1994 (or as subsequently amended).
This final permit includes the following change from Hiwassee Hydro Plant's current NPDES
permit:
Special condition for oil and grease and pH monitoring has been deleted.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adjudicatory 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 reissuance of the permit. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality or permits required
by the Division of Land Resources, the Coastal Area Management Act or any other Federal or Local
governmental permit that may be required.
If you have any questions concerning this permit, please contact Agyeman Adu-Poku at telephone
number [phone]; extension 508.
Sincerely,
4
Coleen H. Sullins
cc: Central Files
NPDES File
As 7evil i e7Reglona �OTfat P.rotectidd.
N"otse1tCarolina
Naturally.
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwaterguality.org Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]

Permit NCO027359
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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
Tennessee Valley Authority
is hereby authorized to discharge wastewater from a facility located at
Hiwassee Hydro Plant
at the Hiwassee Dam
west of Hiwassee Village
Cherokee County
to receiving waters, designated as the Hiwassee River in the Hiwassee 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 October 1, 2007.
This permit and authorization to discharge shall expire at midnight on August 31, 2012.
Signed this day September 10, 2007.
Coleen H. Sullins, Dire or
Division of Water .Quality
By Authority of the Environmental Management Commission

•
Permit NCO027359
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.
Tennessee Valley Authority is hereby authorized to:
-1. Continue to discharge water from a station sump which receives flow from wheel pit leakage
and power house floor drains (Outfall 001), discharge unwatering sump water (Outfall 002),
discharge non -contact cooling water (Outfalls 003 and 004), and discharge station sump
water, as. well as upper and lower gallery drain water (Outfall 005), located at Hiwassee
Hydro Plant, at the Hiwassee Dam, west of Hiwassee Village, Cherokee County and
2. Discharge from said facility at the location specified on the attached map into the Hiwassee
River which is classified C waters in the Hiwassee River Basin.

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Tennessee Valley Authority
Hiwassee Hydro Plant
State Grid/Ouad: G2NW/Unaka, NC Drainage Basin: Hiwassee River Basin
Latitude: 35'09'01" N Sub -Basin: 04-05-02
Longitude: 84o 10'41" W
Receiving Stream: Hiwassee River
Facility
Location
not to scale

•
Permit NCO027359
A. (1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the station sump (receiving flow from Unit 1 floor drains and wheel pit leakage) from outfall(s)
serial number 001. Such discharges shall be limited and monitored by the Permittee as specified below:
rEYIMU NT LIMITS 1VIONITORING REQUTI2EMENTS
CHARACTERISTICS
MontBly f Weekly lily4 Measgrement Sample , $ample ay
a Average Average Maximum Frequency *Type Locahonly
Flow Quarterly' Estimate E
Oil and Grease 15 mg/1 20 m l 2 E
H3 -I I E
Notes:
1 Sample locations: E — Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility. Confirmation that a
visual inspection was conducted should be clearly noted on the Discharge Monitoring Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be 'conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recordedand reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30`h day following the completed reporting period. The
first DMR is due on the 30'h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

•
Permit NCO027359
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from draft tube unwatering operations from outfall(s) serial number 002. Such discharges shall be
limited and monitored by the Permittee as specified below:
EFFLUENT
LIMITS
MONITORING REQUIREMENTS
CIIARAC>CERISTICS: .
1kIonthly
Weekly
Datly
Measurement.
Sample '
Sample
,
.
reaenc-
T,
ocAvea.0on
Flow
Quarterly
Estimate
E
Oil and Grease2
15 m l
20 m l
2
E
H3
I
-
E
Notes:
t Sample locations: E — Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility. Confirmation that a
visual inspection was conducted should be clearly noted on the Discharge Monitoring Report (DMR) form
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum; changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30`h day following the completed reporting period. The
first DMR is due on the 3O'h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have.been employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

Permit NCO027359
A. (3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge once -through cooling waters from generator air cooling and bearing cooling from outfall(s) serial number
003 and 004. Such discharges shall be limited and monitored by the Permittee as specified below:
EFFLUENT ,;;
CIIARACT.ERISTICS
LIMITS
MOIVITOItING REQUIREMENTS,,'_
Monthly
Avers e F
Weekly
=:.Avers"e
Daily
`, :Maximum .
measurement;*,Sample
`Ere` uenc
? T e,..
Sample
Loeahonl
Flow
Semi-annually
Estimate
E
Temperature 2
2
2
E
H3
I
E
Notes:
I Sample locations: E — Effluent.
2 The temperature of the effluent will be regulated so that the temperature of the receiving stream does not increase more than 2.80C
above the natural water temperature. Receiving water temperature shall not exceed a maximum of 29 C due to the facility's
operation.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30`h day following the completed reporting period. The
first DMR is due on the 30`ti day of the month following the calendar quarter in which the permit was issued.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

E
Permit NCO027359
A. (4). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the lower and upper gallery drains, and waters from Unit 2 floor drains and wheel pit
leakage, from outfall(s) serial number 005. Such discharges shall be limited and monitored by the Permittee as specified
below:
EFFLUENT
CIhARACTERIST.ICS`
ITS...,:
MONITORING REQUIREMENTS
Monthly
Average'
Weekly -
Avera e'
Daily
Maximum
Measurement _
Fre uenc .,
Sample
-Type:
Sample
Locattnl o.` <`
Flow
Quarterly
Estimate
E
Oil and Grease2
15 m l
20 m l
2
E
H3
E
Notes:
1 Sample locations: E — Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility. Confirmation that a
visual inspection was conducted should be clearly noted on the Discharge Monitoring Report (DMR) form
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
Mechanical cleaning operations which do not contribute any wastewater to the discharge are not limited by this permit.
Non -discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use -of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 301h day following the completed reporting period. The
first DMR is due on the 30`h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with. each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in the effluent.

warF;� p
� r
o -c
Janet Herrin
Tennessee Valley Authority
400 W. Summit Hill Dr., WT 10D
Knoxville, TN 37902-1401
Dear Ms. Herrin:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
February 13, 2007
F E B 1 4 2007 i
WATER QUALITY SECTION
ASHEVILLE REGIONAL OFFICE
Subject: Receipt of permit renewal application
NPDES Permit NCO027539
Hiwassee Hydro Plant
Cherokee County
The NPDES Unit received your permit renewal application on February 12, 2007. A member of the NPDES Unit
will review your application. They will contact you if additional information is required to complete your permit renewal. You
should expect to receive a draft permit approximately 30-45, days before your existing permit expires. The requirements in
your existing permit will remain in effect until the permit is renewed (or the Division takes other action).
If you have any additional questions concerning renewal of the subject permit, please contact me at [phone],
extension 363.
Sincerely,
Carolyn Bryant
Point Source Branch
cc: CENTRAL FILES
G9 sheville:Reg orial-Office/S_uzface Watex Protdctton
NPDES Unit
Noe Carolina
iura!!y
North Carolina Division of Water Quality. 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: h2o.enr.state.nc.us 512 N. Salisbury St. Raleigh, NC 27604 FAX [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial manufacturing and commercial facilities.;'
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit r
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number NCO027359
If you are completing this form in computer use the TAB key or the up - down arrows to move from one
field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type.
1. Contact Information:
Owner Name
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Tennessee Valley Authority
Hiwassee Hydro Plant
400 West Summit Hill Drive, WT 10D
Knoxville
Tennessee/37902
[phone]
[phone]
jcherrinCtva.gov
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road
City
State / Zip Code
County
600 Powerhouse Road
near Murphy
North Carolina/28906
Cherokee
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORC)
Name Tennessee Valley Authority
Mailing Address 400 West Summit Hill Drive, WT 10D
City Knoxville
State / Zip Code Tennessee/37902
Telephone Number [phone]
Fax Number (8651 632-6137
Page 1 of 5 C-MI 03105

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
4. Ownership Status:
Federal ® State ❑ Private ❑ Public ❑
S. Standard Industrial Classification (SIC) code(s): 4911- Electric Services
6. Number of employees: 25
7. Describe the treatment system List all installed waste treatment components with capacities,
describe the processes that generate wastewaters. If the space provided is not sufficient attach a
separate sheet of paper with the system description..
Water discharged from Outfalls 001, 002, and 005 include waters from the station sump
(receiving flow from Unit I floor drains and wheel pit leakage), the draft tube, unwatering
operations, lower and upper gallery drains, Unit 2 floor drains and wheel pit leakage. Oil
absorbent pads are used in sumps and points of equipment oil leaks. These pads are changed
at least once a quarter in addition to the removal of sediment to ensure that excessive
pollutants are not discharged to surface waters of the State. It is assumed that the oil
absorbent pads treat 100% of the volume before discharge at normal flow.
S. Is facility covered under federal effluent limitation guidelines? No ® Yes ❑
If yes, specify the category?
9. Principal product(s) produced: Electric Power
Principal raw material(s) consumed: N/A
Briefly describe the manufacturing process(es):
TVA's conventional hydro plants typically include a dam to control the flow of a river, a powerhouse
containing turbines and generators to make electricity, a switchyard to step up the electricity's voltage
for distribution to customers, and a large reservoir of water behind the dam.
Water from the upper reservoir flows through a penstock (a large pipe connecting the reservoir to the
powerhouse) impacting the blades of a turbine. Water impacting the blades makes the turbine rotate.
A large diameter shaft connects the rotating turbine to a generator in the powerhouse. The generator
consists of a large rotating electromagnet (driven by the turbine) located in the middle of an even larger
set of stationary wire coils. When running at the proper speed (typically around 100 revolutions per
minute for TVA hydro generators), electricity is produced in the coils at anywhere from about 13,000 to
23,000 volts. Generator leads take the electricity to the switchyard where the voltage is increased and
put into the TVA transmission system for delivery to distributors across the Tennessee Valley. The
water used to turn the turbine then flows out of the powerhouse in a draft tube where it is released
into the water supply. Hiwassee Hydro Plant has two units, one conventional hydroelectric unit and
one reversible pump storage/hydroelectric unit.
Page 2 of 5 C-M103/05

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
10. Amount of principal product produced or raw material consumed
(List specific amounts consumed and/or units of production over the last three years)
Product Produced or Raw Material
Consumed
AVERAGE
Product Produced or Raw Material
Consumed
PEAK
per Day
656 megawatt -hours per day
3,638 megawatt -hours per day
per Month
1 19,918 megawatt -hours per month
60,684 megawatt -hours per month
per Year
1238,987 megawatt -hours per year
1296,085 megawatt -hours per year
11. Frequency of discharge: Continuous*
If intermittent:
Days per week discharge occurs:
Intermittent ❑
Duration:
* While individual discharges may not flow continuously, it is unlikely that there would be no discharge from any outfall,
unless all units were in outage.
12. Types of wastewater discharged to surface waters only
Discharge
Flow*
GALLONS PER DAY
Sanitary - monthly average
250 (estimated) subsurface disposal
Utility water, etc. - monthly average
N/A
Process water - monthly average
1,700,000 (Outfall 001 - Station Sump = 400,000 and
Outfall 002 - Unwatering Sump = 1,300,000)
Stormwater - monthly average
N/A
Other - monthly average
Explain: Cooling Water
4,250,000
Monthly Average
5,950,000
total discharge (all types)
*Note: Flows are estimatcd for average operating conditions using pump rated capacity or design capacity. 'Unwatering
operations (Outfall 002) are intermittent and typically occur approximately once every two years per unit. See attached flow
schematic.
13. Number of separate discharge points: 5
Outfall Identification number(s) Outfalls 001. 002, 003, 004, and 005
14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Hiwassee River (See attached map)
Page 3 of 5 C-MI 03105

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
15. Effluent Data
Provide data, for the parameters listed. Temperature and pH shall be grab samples, for all other parameters 24-hour
composite sampling shall be used. If more than one analysis is reported, report daily maximum and monthly average.
If only one analysis is reported, report as daily maximum.
Parameter
Daily
Maximum
Monthly
Average
Units of
Measurement
001
005
001
005
Biochemical Oxygen Demand (BOD5)
5.2
5.5
N/A
N/A
mg/L
Chemical Oxygen Demand (COD)
< 50
<50
N/A
N/A
mg/L
Total Organic Carbon
2.62
1.33
N/A
N/A
mg/L
Total Suspended Solids
< 3.3
6.7
N/A
N/A
mg/L
Ammonia as N
< 0.5
< 0.5
N/A
N/A
mg/L
Temperature (Summer)
N/A
N/A
N/A
N/A
Degrees C
Temperature (Winter)
10.9
12.2
N/A
N/A
Degrees C
pH _
6.9
6.9
N/A
N/A
units
Fecal Coliform (If sanitary waste is
present)
N/A
N/A
N/A
Total Residual Chlorine (if chlorine is
used)
N/A
N/A
N/A
Note: Data are for grab samples. The requirement for composite sampling was waived. Outfall
002 was not discharging when renewal samples were collected. The maximum pH for Outfall
002 for special monitoring during the current permit was 6.9.
16. List all permits, construction approvals and/or applications (check all that apply and provide permit
numbers or check none if not applicable).
Type Permit Number Type Permit Number
Hazardous Waste (RCRA)
UIC (SDWA)
NPDES
PSD (CAA)
Non -attainment program (CAA)
NCO027359
NESHAPS (CAA)
Ocean Dumping (MPRSA)
Dredge or fill (Section 404 or CWA)
Other
17. List any chemicals that may be discharged (Please list and explain source and potential
amounts.)
Small amounts of Oil and Grease may be discharged from out£alls as oil containing equipment is
located on site. The current NPDES permit has a daily max of 20 mg/L and a monthly average of
15 mg/L Oil and Grease. Monitoring has occurred under the current permit and no excursions
have occurred. The recent monitoring for this plant yielded 1.3 mg/L (001) and 1.4 mg/L (005)
O&G.
Page 4 of 5 C-MI 03105

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
IS. Is this facility located on Indian country? (check one)
Yes ❑ No
19. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
Janet C. Herrin Senior Vice President River O erations
Printed name of Person Signing Title
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that. Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Page 5 of 5 C-MI 03l05

UPPER
GALLERY DRAINS
LOWER
GALLERY DRAINS
UNIT 2 FLOOR DRAINS
UNIT 2 WHEEL PIT
LEAKAGE
INTAKE FROM HIWASSEE RIVER
SUMP
STATION
SUMP
OUTFALL
0.720 MOD
.........* 005
0.9216 MOD
0.2016 MOD
_ UNIT 1 2.052 MOD
_
GENERATORAIR & •-._._._--------------------------------------* 003
BEARING COOLING WATER.-._._._._11.NNII.Z._._._._._._._._._._._._._._...._._._-* 004
2.606 MOD
DRAFT TUBE UNWATERING • 002
UNWATERING OPERATIONS SUMP 7.776 MOD
UNIT 1 FLOOR DRAINS STATION
AND WHEEL PIT LEAKAGE SUMP 0.432 MOD
POTABLE WATER SANITARY SEWAGE .............. SEPTIC ........... SUBSURFACE
(EST. MAX. 400 GPD) DRAINS TANK DISPOSAL FIELD
i
SYMBOLS:
RAW RIVER WATER, POTABLE WATER, RAIN WATER, OR GROUND WATER
- - - NON -CONTACT COOLING WATER
OTHER WASTEWATER
Q MOTOR -DRIVEN PUMP
EDUCTOR PUMP
NOTES:
.1. ALL EFFLUENTS DISCHARGE INTO THE HIWASSEE RIVER.
2. FLOWS (OTHER THAN FOR SANITARY WASTE) ARE MAXIMUM RATES
AND ARE BASED ON PUMP RATED CAPACITIES OR MAXIMUM DESIGN TVA
FLOW RATES. HIWASSEE HYDRO PLANT
3. THE SANITARY WASTE FLOW IS AN ESTIMATED MAXIMIMUM. NPDES PERMIT NO. NCO027359
4_ UNWATERING OPERATIONS (OUTFALL 002) OCCUR APPROXIMATELY CHEROKEE COUNTY, NC
ONCE EVERY TWO YEARS PER UNIT. JANUARY 2007

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Hiwassee Hydro Plant
Outfalls 001 - 005
17
Tennessee Valley Authority
Hiwassee Hydro Plant - NCO027359
SgWOOSMued: G2NW/Unaka,NC Drainage Basin: Hiwassee River
L3ftda W0701"N
Longitude: 840 10! 41 " W
R201ving Stream: Hiwassee River
Stream Class C
Facility Location
not to scale
NPDES Permit No. NC0027359
Cherokee County

Chatuge and Hiwassee Hydro Plants - Contafmation
is
Subject: Chatuge and Hiwassee Hydro Plants - Contact Information
From: "Tupps, Melissa S" <[e-mail]>
Date: Thu, 25 Jan 2007 10:44:01 -0500
To: "Larry Frost" <[e-mail]>
Larry,
Per our conversation, please change the contact information at Chatuge and Hiwassee
Hydro Plants from Lisa Perkey to:
Tennessee Valley Authority
c/o Melissa Tupps, PSC IF-C
1101 Market Street
Chattanooga, TN 37402-2801
Thank you.
mel
Melissa S. Tupps (mstunns(a�tva.ov)
Environmental Program Administrator
Raccoon Mountain Pumped Storage Plant/
Hiwassee Plant Group
I101 Market Street, Chattanooga, TN 37402 (PSC IF-C)
Phone: [phone]; Cell: 423-331-0573 Fax: [phone]
1 0:' 1 1/25/2007 1:05 PM

Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
June 21, 2002
v
Ms. Janet C. Herrin a� I
Manager of Environmental Affairs
Tennessee Valley Authority
400 West Summit HillDrive
Knoxville, Tennessee 37902
Subject: Issuance of NPDES Permit NCO027359
Hiwassee Hydro Plant
Cherokee County
Dear Ms. Herrin:
Division personnel have reviewed and approved your application for renewal of the subject permit.
Accordingly, we are forwarding the attached NPDES discharge 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 May 9, 1994 (or as subsequently amended).
As per your request, the references to specific sampling months for quarterly flow sampling have been
eliminated. This does not, however, affect the requirement to sample for flow at least once per quarter. Please also
note that although the permit has been signed June 21, 2002, the effective date of the permit is September 1, 2002.
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable
to you, you have the right to an adjudicatory 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 reissuance of the permit. This permit does not affect the legal requirements
to obtain other permits which may be required by the Division of Water Quality or permits required by the Division
of Land Resources, the Coastal Area Management Act or any other Federal or Local governmental permit that may
be required.
If you have any questions concerning this permit, please contact Natalie Sierra at telephone number (919)
733-5083, extension 551.
cc: rk�s e711 �e '051 t ffice — W., ter * �alit9a Section . ,
Technical Assistance and Certification Unit
NPDES Unit Files
Central Files
Sincerely,
Cr &ai Signed BY
Qa,Ad A, Goodrich
Alan W. Klimek, P.E.
Director
Division of Water Quality
I 2002-
North Carolina Division of Water Quality
1617 Mail Service Center
Raleiqh, North Carolina 27699-1617
AMA
[phone] NCDENR
FAX [phone] Customer Service
On the Internet at htto://h2o.enr.state.nc.us/ 1 800 623-7748

Permit NCO027359
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER (QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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,
Tennessee Valley Authority
is hereby authorized to discharge wastewater from a facility located at
Hiwassee Hydro Plant
at the Hiwassee Dam
west of Hiwassee Village
Cherokee County
to receiving waters designated as the Hiwassee River in the Hiwassee 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 September 1, 2002.
This permit and authorization to discharge shall expire at midnight on August 31, 2007.
Signed this day June 21, 2002.
t•
r .:••.
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO027359
SUPPLEMENT TO PERMIT COVER SHEET
Tennessee Valley Authority
is hereby authorized to:
1. Continue to discharge water from a station sump which receives flow from
wheel pit leakage and power house floor drains (Outfall 001), discharge
unwatering sump water (Outfall 002), discharge non -contact cooling water
(Outfalls 003 and 004), and discharge station sump water, as well as upper
and lower gallery drain water (Outfall 005), located at Hiwassee Hydro Plant,
at the Hiwassee Dam, west of Hiwassee Village, Cherokee County and
2. Discharge from said facility at the location specified on the attached map
into the Hiwassee River which is classified C waters in the Hiwassee River
Basin.

f
/2 I/f
It C
f r arG NR
_7 37
Fi11NRS5EE QRM '� o
%JTry. .-�- \ • ti
A Bear Pad ResortDock
F' V `
l�
Hiwasss. Hydro Plant
�� Outfalls� 001 ,005 ~�
V J � � � �� ..O� �` ��,' 'RIVER*✓:
1 `
Tennessee Valley Authority
Hiwassee Hydro Plant
State Grid/Ouad: G2NW /Unaka, NC Drainage Basin: Hiwassee River Basin
Latitude: 35° 09' 01" N Sub -Basin: 04-05-02
Longitude: 84° 10' 41" W
Receiving Stream: Hiwassee River
Stream Class: C
Facility `
Location
not to scale
North NPDES Permit No. NC0027359
Cherokee Count

Permit NC0027359
A. (1.) EFFLUENT LIMITATIONS AND ' MONITORING REQUIREMENTS — FINAL
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge waters from the station sump (receiving flow from Unit 1
floor drains and wheel pit leakage) from outfall(s) serial number 001. Such discharges shall be
limited and monitored by the Permittee as specified below:
Notes:
1 Sample locations: E - Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility.
Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river
conditions prevent compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not
discharged to the surface waters of the State. These practices should include, as a
minimum, changing oil absorbent pads quarterly and cleaning accumulated sediment in the
bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs,
the tailrace shall be inspected visually for foam and oil. Cleaning shall be conducted only with pre -
approved solvents. Should the Permittee wish to change cleaning solvents, a written request should
be made to the Division including the MSDS for the proposed solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to
the discharge. Non -discharging cleaning operations may be conducted as often as necessary to
ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical
additive in the discharge. The Permittee shall notify the Director in writing at least ninety (90)
days prior to instituting use of any additional additive in the discharge that may be toxic to
aquatic life (other than additives previously approved by the Division). Such notification shall
include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for the
additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during. the previous calendar quarter shall be recorded and reported on a
Discharge Monitoring Report (DMR) form and postmarked no later than the 30th day following the
completed reporting period. The first DMR is due on the 30th day of the month following the calendar
quarter in which the permit was issued. The Permittee shall confirm in writing that BMPs have been
employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in
the effluent.

Permit NCO027359
A (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS -FINAL
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge waters from draft tube unwatering operations from outfall(s)
serial number 002. Such discharges shall be limited and monitored by the Permittee as specified
below:
Notes:
i Sample locations: E - Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility.
Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river
conditions prevent compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not
discharged to the surface waters of the State. These practices should include, as a
minimum, changing oil absorbent pads quarterly and cleaning accumulated sediment in the
bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs,
the tailrace shall be inspected visually for foam and oil. Cleaning shall be conducted only with pre -
approved solvents. Should the Permittee wish to change cleaning solvents, a written request should
be made to the Division including the MSDS for the proposed solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to
the discharge. Non -discharging cleaning operations may be conducted as often as necessary to
ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical
additive in the discharge. The Permittee shall notify the Director in writing at least ninety (90)
days prior to instituting use of any additional additive in the discharge that may be toxic to
aquatic life (other than additives previously approved by the Division). Such notification shall
include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for the
additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a
Discharge Monitoring Report (DMR) form and postmarked no later than. the 30u, day following the
completed reporting period The first DMR is due on the 301h day of the month following the calendar
quarter in which the permit was issued. The' Permittee shall confirm in writing that BMPs have been
employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in
the effluent.

Permit NCO027359
A (3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge once -through cooling waters from generator air cooling and
bearing cooling from outfall(s) serial number 003 and 004. Such discharges shall be limited and
monitored by the Permittee as specified below.
Notes:
1 Sample locations: E - Effluent.
2 The temperature of the effluent will be regulated so that the temperature of the receiving stream does not
increase more than 2.80C above the natural water temperature. Receiving water temperature shall not
exceed a maximum of 290C due to the facility's operation.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river
conditions prevent compliance with this range.
The Permittee shall obtain authorization from the Division prior to the use of any chemical
additive in the discharge. The Permittee shall notify the Director in writing at least ninety (90)
days prior to instituting use of any additional additive in the discharge that may be toxic to
aquatic life (other than additives previously approved by the Division). Such notification shall
include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for the
additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a
Discharge Monitoring Report QMR) form and postmarked no later than the 30th day following the
completed reporting period The first DMR is due on the 30th day of the month following the calendar
quarter in which the permit was issued.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in
the effluent.

Permit NCO027359
A (4). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge waters from the lower, and upper gallery drains, and waters
from Unit 2 floor drains and wheel pit leakage, from outfall(s) serial number 005. Such discharges
shall be limited and monitored by the Permittee as specified below:
Notes:
1 Sample locations: E - Effluent.
2 The tailrace shall be visually inspected for oil sheens at least once a quarter at this hydroelectric facility.
Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river
conditions prevent compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not
discharged to the surface waters of the State. These practices should include, as a
minimum, changing oil absorbent pads quarterly and cleaning accumulated sediment in the
bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs,
the tailrace shall be inspected visually for foam and oil. Cleaning shall be conducted only with pre -
approved solvents. Should the Permittee wish to change cleaning solvents, a written request should
be made to the Division including the MSDS for the proposed solvent.
Mechanical cleaning operations which do not contribute any wastewater to the discharge are not
limited by this permit. Non -discharging cleaning operations may be conducted as often as necessary
to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical
additive in the discharge. The Permittee shall notify the Director in writing at least ninety (90)
days prior to instituting use of any additional additive in the discharge that may be toxic to
aquatic life (other than additives previously approved by the Division). Such notification shall
Include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for the
additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a
Discharge Monitoring Report (DMR) form and postmarked no later than the 30u, day following the
completed reporting period. The first DMR is due on the 30th day of the month following the calendar
quarter in which the permit was issued. The Permittee shall confvm in writing that BMPs have been
employed as specified in this permit with each DMR submitted.
There shall be no discharge of floating solids or visible foam (other than trace amounts) in
the effluent.

Permit NCO027359
A. (5®) SPECIAL CONDITION FOR MONITORING
In order to assess the impact of these discharges on the receiving stream, the Permittee is
required to submit four (4) data points for outfalls 001, 002 and 005 relating to oil and grease and
pH. The oil and grease and pH samples may be taken over the course of the permit life and the
resulting data shall be submitted prior to the next permit renewal.

_ DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO027359
Facility Information
Applicant/Facility Name; `
Tennessee Valley Authority — Hiwassee Hydro Plant
'Applicant Address: ';
400 West Summit Hill Drive; Knoxville, TN 37902
Facility Address:
Hiwassee Dam west of Hiwassee Village; Cherokee County, NC
Permitted Flow
Not limited
Type of Waste:
10001t industrial; SIC: 4911 Primary: 48
Facility/Permit Status:.-.. '
Class I /Active; Renewal
Count
Cherokee Count
Miscellaneous
Receiving Stream: '. `
Hiwassee-River
Regional Office: '
Asheville
Stream Classification:
WS-IV, CA
State Grid / USGS _Quad:
G2NW/Unaka, NC
303(d) Listed?
No
Permit Writer:
Natalie V. Sierra
Subbasin:
04-05-02
Date:
4/22/02
Drainage Area (mi2):
N/A
,
, W
3 s f1
..Rr
Lat. 350 09' 02" N Long. 84' 10' 44" W
Summer 7Q 10 (cfs)
250
Winter 7Q10 (cfs):
N/A
30Q2 (cfs)
N/A
Average Flow (cfs):
N/A
IWC (%):.
N/A (variable flow
— not limited)
BACKGROUND
The Hiwassee Hydro Plant produces electricity via hydraulic turbine generation. The facility
produces an average of 1,000 megawatt -hours per day of power, with peak power generation at 2,904
megawatt -hours per day. The Asheville Regional Office notes that most of the Hiwassee River's flow is
run through the facility for power production.
The plant has five permitted outfalls as follows:
001: waters from the station sump
002: waters from the draft tube unwatering.operations
003 and 004: once through cooling water from generator air and bearing cooling
005: waters from upper galley drains and Unit 2 floor drains and pit leakage
None of the outfalls contain a limit for flow and all employ Best Management Practices (BMPs)
rather than monitoring for pH, oil and grease, and temperature. Each DMR report contains a statement
affirming that BMPs are being used on site. The staff report and permit fact sheet from the previous
permit indicate that a general permit is not entirely appropriate for this facility..
Instream Monitoring and Verification of Existing Conditions and DMR Data Review
This facility discharges to the Hiwassee River (classified C) in sub -basin 04-05-02 (Hiwassee
River Basin). The facility does not currently perform instream monitoring. Discharge Monitoring
Reports (DMRs) for flow (the only monitored parameter) were reviewed from 1998 to present. Average
flows from the five outfalls are displayed below:
Flow (MGD) 0.4 1.1 3.96 0.29
Correspondence
The Asheville Regional Office (ARO) did not conduct any site visits to this facility over the term
of the permit. Other than the required certification from the facility that BMPs are in place, there was no
correspondence noted from 1999 to present.
Fact Sheet
NPDES NC00273,79 Rene —wall
Pagc l

.I
PERMITTING STRATEGJ
Waste Load Allocation (WLA)
The Division prepared the last WLA in 1985. The previous and current effluent limits were
based on guidelines and water quality standards. The Division has judged previous parameters and limits
to be appropriate for renewal. The draft 2002 Hiwassee River Basinwide Water Quality Plan reports
that the receiving stream is currently supporting all designated uses and provides no recommendations
for this discharger.
Reasonable Potential Analysis (RPA)
Since toxicants are not monitored in this discharge, no reasonable potential analysis was
performed.
SUMMARY OF PROPOSED CHANGES
The Permittee has not requested any changes nor are any changes deemed necessary at this time.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
NPDES DIVISION CONTACT
April 17, 2002
June 7, 2002
If you have questions regarding any of the above information or on the attached permit, please contact
Natalie Sierra at [phone] ext. 551.
NAME: DATE:
REGIONAL OFFICE COMMENTS
NAME: DATE:
SUPERVISOR: DATE:
Faer Shm,L
NPDE::S NC{N)27359 RLn : v.-1!

I"
PERMIT NUMBER: NCO027359
FACILITY NAME: Mwassee Hydro Plant
CITY: Murphy
PERMIT NUMBER: NCO027359
FACILITY NAME: Mwassee Hydro Plant
CITY: Murphy
Oil and:: -
�Ol PH{5u)
Grease (mglL) FLOW (MGD)
Dec-98
0.4
Mar-99
0.4
Jun-99
0.4
Sep-99
0.4
Dec-99
0.4
Mar-00
0.4
Jun-00
0.4 '
Jul-00
0.4
Dec-00
0.4
Mar-01
0.4
Apr-01
0.4
Aug-01
0.4
Oct-01
0.4
average
0.4
oil,and
003
pH (su) 'Grease ,(mg/L) ','FLOW (MGD)
Dec-98
3.96
Jun-99
3.96
Dec-99
3.96
Jun-00
3.96
Dec-00
3.96
Apr-01
3.96
Oct-01
3.96
average
3.96
005 PH '.
''-Oi1 and,.,' Flow. (MGD) I'
Dec-98
0.1
Mar-99
0.1
Jun-99
0.1
Sep-99
0.1
Dec-99
0.1
Mar-00
0.1
Jun-00
0.1
Jul-00
0.1
Dec-00
0.1
Mar-01
0.1
Apr-01
0.1
Aug-01
0.1
Oct-01
0.1
average
0.1
Oil and'
,002 pH (�§u)'
^.Greaser FLOW (MGD),..
Dec-98
1.3
Jan-99
1.3
Apr-99
2.6
Sep-99
1.3
Nov-99
1.3
Mar-00
0
Jun-00
1.3
Jul-00
1.3
Dec-00
0
Feb-01
1.3
May-01
1.3
Aug-01
1.3
Oct-01
0
average
1.1
Oil and
004 - PH:
-Grease -FLOW.. (MGD) '
Dec-98
0.29
Jun-99
0.29
Dec-99
0.29
Jun-00
0.29
Dec-00
0.29
Apr-01
0.29
Oct-01
0.29
average
0.29

V,Janet
VLZfy
From: Denard, Derek
Sent: Monday, April 16, 2018 12:24 PM
Ar�2.aac_ D�
To: Heim, Tim; Davidson, Landon; Cantwell, Janet �—
Subject: RE: Drafting Initiated for Tennessee Valley Authority Permits NC0027341, NC0027332 &
NC0027359
The permit does not require them to monitor at all except fo.r flow which is an estimate. They can state that they follow
BMPs, but they don't seem to state that anywhere on eDMR either. They requested to only have to maintain DMRs at
the facility like the general permit. They don't realize that eDMR is required by EPA. Otherwise, they would have to have
a waiver not to report. The general permits will have to report by eDMR in the future. What I gathered is that 2 out of 3
of these facilities are operated remotely. Should they be required to monitor the parameters in the permit? Would the
general permit be more appropriate for the TVA? Should they be given the general permit tables? It's hard to reconcile
blank boxes in an effluent table in the age of eDMR.
Derek C Denard
Environmental Specialist
Compliance & Expedited Permitting Unit
N.C. Division of Water Resources
N.C. Department of Environmental Quality
919 807 6307 office
derek:denardna.ncdenr.gov.
N. C. Division of Water Resources
Water Quality Permitting Section - NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the
North Carolina Public Records Law, and may be disclosed to third patties.
From: Heim, Tim
Sent: Monday, April 16, 2018 8:06 AM
To: Denard, Derek <[e-mail]>
Subject: FW: Drafting Initiated for Tennessee Valley Authority Permits NC0027341, NC0027332 & NC0027359
Derek,
Some input from Landon (I don't deal with DRM/BIMS much). You may want to get in touch with Janet Cantwell about
this if you think it's worth pursuing. She is our regional expert on these matters.
-Tim
From: Davidson, Landon
Sent: Thursday, April 12, 2018 2:37 PM
1

To: Heim, Tim <Tim.Heim @ncdenr.gov>
Subject: RE: Drafting. Initiated for Tennessee Valley Authority Permits NC0027341, NCO027332 & NC0027:
Administrative but BIMS often flags the quarterly or annual monitoring frequency. May want to check mo
frequency to see if changes should be made.
G. Landon Davidson, P.G.
Regional Supervisor —Asheville Regional Office
Water Quality Regional Operations Section
NCDEQ — Division of Water Resources
828 296 4680 office
828 230 4057 mobile
Landon. Davidson(c)-ncden r.gov
2090 U.S. Hwy. 70
Swannanoa, N.C. 28711
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Heim, Tim
Sent: Thursday, April 12, 2018 2:19 PM
To: Denard, Derek <[e-mail]>; Davidson,'Landon <[e-mail]>
Subject: RE: Drafting Initiated for Tennessee Valley Authority Permits NC0027341, NCO027332 & NCO027359
Thanks Derek,
Generally these are straightforward and don't change much, but I will review.
From: Denard, Derek
Sent: Thursday, April 12, 201812:52 PM
To: Davidson, Landon <[e-mail]>; Heim, Tim <Tim. Heim @ncdenr.gov>
Subject: Drafting Initiated for Tennessee Valley Authority Permits NC0027341, NC0027332 & NCO027359
Landon & Tim,
I have initiated for the following permits:
NC0027341 Tennessee Valley Authority
Fontana Hydro Plant
NC0027332 Tennessee Valley Authority
Chatuge Hydro Plant
NC0027359 Tennessee Valley Authority
Hiwassee Hydro Plant
Please let me know if you have any comments.
Thanks,
Derek C Denard
Environmental Specialist
Compliance & Expedited Permitting Unit
N.C. Division of Water Resources
N.C. Department of Environmental Quality
919 807 6307 office
derek.denard(d-)ncdenr.g_ov

I
i
ivision of Water Resources
er Quality Permitting Section - NPDES
617 Mail Service Center j
Raleigh, NC 27699-1617
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties. `
J
3

A47LA
NCDE NR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
mr
Pat McCrory Charles Wakild, P. E. John E. Skvarla, III
Governor Director Secretary
Mr. Jason Neely
Plant Manager
Hiwassee Hydro Plant
1101 Market Street LP 3D
Chattanooga, Tennessee 37402
Dear Mr. Neely:
April5,2013 ' .I REC1vLb
APR 1 1 2013
DWQ/Surface Water Protection Section
Asheville
Subject: Issuance of NPDES Permit Renewal
Permit NCO027359
Hiwassee Hydro Plant
Cherokee County
The Division of Water Quality (Division) personnel have reviewed and approved your application for
renewal of the subject permit. Accordingly, we are forwarding the attached NPDES discharge permit. It
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.
There are no changes to this permit from the draft permit dated February 13, 2013, and no changes from
your current permit except for minor narrative updates.
If any parts, measurement frequencies, or sampling requirements contained in this permit are
unacceptable, you have the right to an adjudicatory hearing upon written request within thirty (30) days
after receiving this letter. Your request must take the form of a written petition conforming to Chapter
150B of the North Carolina General Statutes, and must be filed with the Office of Administrative
Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such demand is made,.
this permit remains final and binding.
This permit is not transferable except after notifying the Division of Water Quality. The Division may
modify and re -issue, or revoke this permit. Please notice that this permit does not affect your legal
obligation to obtain other permits required by the Division of Water Quality, the Division of Land
Resources, the Coastal Area Management Act, or other federal or local governments.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location, 512 N. Salisbury St. kalelgh, North Carolina 27604
Phone: [phone] FAX: 91H07-64989
Intemet: www.ncwateroualitv.or4
None Carolina
�tl��RC`
s�
Art Equal Opportunity 1 Affirmative Action Employer

If you have questions, or if we can be of further service, please contact Jim McKay at
jai-nes.mckU@,nedenr.gov or call [phone].
Sincerely,
Charles Wakild, P.E.
Enclosure: NPDA'`Permit FINAL NC0027359 - Hiwassee Hydro Plant
0
y
c
cc: NPDES Unit
Central Files
;Asheville Regional Office/Surface Water Protection . - -- —

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision 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
Tennessee Valley Authority
is hereby authorized to discharge wastewater from a facility located at
Hiwassee Hydro Plant
at the Hiwassee Dam
west of Hiwassee Village
Cherokee County
to receiving waters designated as the Hiwassee River in the Hiwassee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts I,11, III, and IV hereof.
This permit shall become effective May 1, 2013.
This permit and authorization to discharge shall expire at midnight on August 31, 2017.
Signed this day April 5, 2013.
r
es Wakild, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission _ ._

Permit NC.002
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.
Tennessee Valley Authority is hereby authorized to:
1. Continue to discharge water from a station sump which receives flow from wheel pit leakage
and power house floor drains (Outfall 001), discharge unwatering sump water
discharge non -contact cooling water (Outfalls 003 5nd­0-0 , an ischarge station sump
water, . as well as upper and lower gallery .drain water (Outfall 005), located at Hiwassee
Hydro Plant, at the Hiwassee Dam, west of Hiwassee Village, Cherokee County and
2. Discharge from said facility at the location specified on the attached map into the Hiwassee
River which is -classified C waters in the Hiwassee River Basin.
h
Page 2 of 7

Permit NC002 j
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS.
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the station sump (receiving flow from Unit 1 floor drains and wheel pit leakage) from Outfall
001. Such discharges shall be limited and monitored by the Permittee as specified below:
j jYFUl\Sir' h .�,N
�{y��.
��
C1�iRt�(�ST�4 •'
4 >tz 4. t�Kr4 Y��
J� ��?;��+� �
tith
� a �RJ?4�
i.. fill
"1.��'�
a 1 ,
.w'`� � s �
Mer iS'a►�7 'y,
`�' a " �, a
Sa p
t' ,
r
>y M°l
4 �,. }t
t € i
��/ljj yyrr7V�_M
.�
54'
�.7
e41,+w�v11A.411% tt
;Y4,i q�e G i. YY.
1)Tia Y3[
:i3 9Yaf�5lld Yl.
Flow
Quarterlyi
Estimate
E
Oil and Grease2
15 ma
20 mg/L
uarterly
H3
E
Notes:
1 Sample locations: E - Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report.(DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the .MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Blocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stfeam.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30'h day following the completed reporting period. The
first DM is due on the 30'h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DAR? submitted.
There shall be no discharge of floating solids or visiblefoam (other than trace amounts) in the effluent.
Page 4 of 7

Permit NCO027359
A. (2). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from draft tube. unwatering operations from Outfall 002, Such discharges shall be limited and
monitored by the Perms ee
ffiai ty�44...
4 ,� •7
Fyn •aa�ease1`(..
�"
�.3�.yt
YiSf1.Tri'2k
F M�r� �rT;ehy^.�A
ey7
M1�,
ti� ��r'
i..lrls «;s,'zl'e..
t
Uec�£srT
$'nx
e?ya
,'' .+`l
I'2Ve .��,�'a:
Flow
Quarterly
Estimate
E
Oil and Grease 2
15 mg/L
20 mg/L
Quarterly
E
pH
Notes:
t Sample locations: E—Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring
Report (DMR) form.
0The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient .river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning -is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
This permit does not limit mechanical cleaning operations which do not contribute any,wastewater to the discharge. Non -
discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting 'use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 30'h day following the completed reporting period The
first DMR is due on the 30`h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DAD? submitted.
There shall be no discharge offloating solids or visible foam (other than trace amounts) in the effluent
Page 5 of 7

Permit NC002'
A. (3). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Pemuttee is authorized to
discharge once -through cooling waters from generator air cooling and bearing cooling from Outfalls 003 and 004.
Such discharges shall be limited and monitored by the Permittee as specified below:
i, ik kS1417 �: ����4��'�J�t��¢�S S�W�^'��������'��..
? `%r.'q^ict.YO,, ?'�it�iit�,%� F ■1yi5y A
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.i� y���Bi�.��a`�r,�x��Mry..
a�i./ 5 1 c{ 5^' �' cl.�'p x�}y���v0.p 2 Y�� }
���'�' 7��� t ut��'r+f y� .2.�.�7`�n
�f aL_Sv,�Sj+�wjj��x surd rt>,�.'•,y r_q.+e$:�-^S_'F
9i, 7,Y mil{ � i+l h �g� , t'4
f 't� .y,?v+S.M; C�����+��`�� <t`�'
"a'L\iL'U�i::'�.
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,�
5
z 'i.
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�±`
;t �
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ti`'+
vet
�� axii�ulr►�„ ��
�'�F,�,�e, ne'i►o :�'�,� �� . �".�,�
i)�Qcao�fs;
Flow
Semi-annually
Estimate
E
Temperature 2
2
2
E
H3
Notes:
1 Sample. locations: E -- Effluent.
2 The temperature of the effluent will be regulated so that the temperature of the receiving stream does not increase more than 2.80C
above the natural water temperature. Receiving water temperature shall not exceed a maximum of 29 C due to the facility's
operation.
3 The pH shall not be less than 6.0 standard units nor greater Wan 9.0 standard units unless ambient river conditions prevent
compliance with this range.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DMR) form and postmarked no later than the 300 day following the completed reporting period. The
first DMR is due on the 30" day of the month following the calendar quarter in which thepermit was issued.
There shall be no discharge offloating solids or visible foam (other than trace amounts) in the effluent
Page 6 of 7

Permit NCO027359
A. (4). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to
discharge waters from the lower and upper gallery drains, and waters from Unit 2 floor drains and wheel pit
leakage, from OutfalSuch discharges shall be limited and monitored by the Permittee as specified below:
c t♦ / t +Lh� £ C t<5.
'
al2E}i
y� N4IT[
C
« CTEI�iSTIC . (' .
,i 4 v ` 4n 4 Svc , + 7 4 r
>
� �
tAI
vFN Kz}J/ y x< J
kI'. }#w.vt
.5w5a 7£i..'� L. G. ♦
t��(l 1'V�1'! .n,'{1�.1, r" a.p j `J Yr J 1�yk h t fr`.r.1
�..5 1 Yk'(,�!}S'4':-1;.4*+vUG
�QIF
.,zr 4. :�L Y -' S... v. zi !an
/� s d."r
ent� }ti'
i{♦�
i+`_OtY (Y�"t i,[l
al.
1 %eq�lf L��)ug4
is�4
�.� � � [� �
tit
S"k:t.F1 ,.�.,ri1 G..�i v ,�FX!�t7 `G.. '... 54 .lC!:4!�III�_.. ..:
a� ��rZG ue�%• �• �. Y ��. .;.. «ef:.ur r. Ul\Lo_�����p�,'.i�.
Flow
arterl
Estimate
E
Oil and Grease2
15 mg/L
20 mg/L
Quarterly
I�
Notes:
1 Sample locations: E — Effluent.
2 In lieu of an oil and grease analysis, the tailrace shall be visually inspected for oil sheens at least once a quarter at this
hydroelectric facility. Confirmation that a visual inspection was conducted should be clearly noted on the Discharge Monitoring`
Report (DMR) form.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units unless ambient river conditions prevent
compliance with this range.
Best management practices must be employed to ensure that excessive pollutants are not discharged to the surface
waters of the State. These practices should include, as a minimum, changing oil absorbent pads quarterly and cleaning
accumulated sediment in the bottom of the sump routinely.
Chemical wheel pit cleaning is permitted on a monthly basis. When cleaning of the wheel pit occurs, the tailrace shall be
inspected visually for foam and oil. Cleaning shall be conducted only with pre -approved solvents. Should the Permittee
wish to change cleaning solvents, a written request should be made to the Division including the MSDS for the proposed
solvent.
Mechanical cleaning operations which do not contribute any wastewater to the discharge are not limited by this permit.
Non -discharging cleaning operations may be conducted as often as necessary to ensure safety and proper facility operation.
The Permittee shall obtain authorization from the Division prior to the use of any chemical additive in the discharge.
The Permittee shall notify the Director in writing at least ninety (90) days prior to instituting use of any additional
additive in the discharge that may be toxic to aquatic life (other than additives previously approved by the Division).
Such notification shall include completion of Biocide Worksheet Form 101 (if applicable), a copy of the MSDS for
the additive, and a map indicating the discharge point and receiving stream.
Monitoring results obtained during the previous calendar quarter shall be recorded and reported on a Discharge
Monitoring Report (DM) form and postmarked no later than the 30'h day following the completed reporting period The
first DMR is due on the 30'h day of the month following the calendar quarter in which the permit was issued. The Permittee
shall confirm in writing that BMPs have been employed as specified in this permit with each DM submitted
There shall be no discharge offloating solids or visible foam (other titan trace amounts) in the effluent.
Page 7 of 7

August 29, 2017
Adam Deimling'
Tennessee Valley Authority
1101 Market St LP 3k
Chattanooga, TN 37402
SUBJECT: Compliance Inspection Report
Hiwassee Hydro Plant
NPDES WW Permit No. NCO027359
Cherokee County
Dear Permittee:
The North Carolina Division of Water Resources conducted an inspection of the Hiwassee
Hydro Plant on 8/28/2017. This inspection was conducted to verify that the facility is
operating in compliance with the conditions and limitations specified in NPDES WW Permit No.
NC0027359. The findings and comments noted during this inspection are provided in the
enclosed copy of the inspection report entitled "Compliance Inspection Report".
There.were no significant issues or findings noted during the inspection and therefore, a
response to this inspection report is not required.
If you should have any questions, please do not hesitate to contact Timothy Heim with the
Water Quality Regional Operations Section in the Asheville Regional Office at 828-296-4500 or
via email at [e-mail].
Sincerely,
Tim Heim, P.E., Environmental Engineer
Water Quality Regional Operations Section
Asheville Regional Office
Division of Water Resources, NCDEQ
ATTACHMENT
Cc: WQS Asheville Regional Office - Enforcement File
.NPDES Compliance/Enforcement Unit -.Enforcement File,
G:\WR\WQ\Cherokee\Wastewater\Industrial\Hiawassee Hyro Plant 27359\CEI 8 28 2017.doo(
State of North Carolina I Environmental Quality I Water Resources
2090 U.S. 70 Highway, Swannanoa, NC 28778
828-296-4500

.f
United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C.20460
OMB No. 2040-0057
Mater Compliance Inspection Report
Appr6valexpires8-31-98
Section A: National Data System Coding (i.e., RCS)
Transaction Code NPDES yr/mo/day. . Inspection Type Inspector Fac Type,
1 IN 1 LJ 2 LJ 3 I NCO-027359, I11 12 1 17/O8/28 17 181 C) 191 :G "i 201
21111111IIIIIIIIIIIIIIIIIIIIIIIII IIIIII1IIII �6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 CA ------------Reserved----7-------
67
70 I 71 Lj 72 L_73I 75I I I I I I �
LJ
80
Section B: FacilityData
.
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
11:00,4M 17/08/28
13/05/01
Hiwassee Hydro Plant
Near Hiwasse
Exit Time/Date
Permit Expiration Date
Murphy NC 28906
01:OOPM 17/08/28
17/08/31
Name(s) of Onsite Representative(s)[Titles(s)/Phone and Fax Number(s)
Other Facility Data
Not Required/ORC/919-807-6353/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Stephen C Wiilliams,I101 Market St LP 3k Chattanooga TN 37402/Environmental .
Scientist/423-876-4176/ Yes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit ® Operations & Maintenance Self -Monitoring Program N Facility Site Review
Effluent/Receiving Waters
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
�' Ci f 6
Timothy H Heim <� �- ARO WQ//828-2964665/
Mika] Willmer ARO WQ//828-2964686/
Signature of rMa t Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
3I, Ncoo27sss I11 12 17/08/29 17 18
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Tim Heim and Mikal Willmer of the Asheville Regional Office performed a.Compliance Evaluation
Inspection on August 28, 2017. Adam Deimling (TVA) assisted with the inspection. The facility
appeared well maintained at the time of the inspection. No negative impa_ ct.to the receiving stream was
observed.
i
Page# 2

' Permit: NCO027359 Owner -Facility: Hiwassee Hydro Plant
Inspection Date: 08/28/2017 Inspection Type: Compliance Evaluation
Operations & Maintenance
Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
❑
❑
. ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT,.Settleable
❑
❑
11
❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: The facility was well maintained at the time of the inspection and proactive measures to
capture trace oil and grease from operations and maintenance were being implemented.
Permit
Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted anew
9
❑
❑
❑ .
application?
Is the facility as described in the permit?0
❑
❑
❑
# Are there any special conditions for the permit?
❑
M
❑
❑
Is access to the plant site restricted to the general public?
M
❑
❑
❑
Is the inspector granted access to all areas for inspection?
0
❑
❑
❑
Comment:
Page# 3

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
August 21, 2012
Mr. Jason Neely
Plant Manager
Tennessee Valley Authority
1101 Market Street LP 3D
Chattanooga TN 37402
SUBJECT: Compliance Evaluation Inspection
Hiwassee Hydro Plant
Permit No: NCO027359
Cherokee County
Dear Mr. Neely:
Enclosed please find a copy of the Compliance Evaluation Inspection form from
the inspection conducted on August 14, 2012. The facility was found to be in compliance
with permit NC0027359. The assistance of Steve Williams and Pamela Wilcoxon was
greatly appreciated in the inspection of this facility.
Please refer to the enclosed inspection report for additional observations and
comments. If you or your staff have any questions, please call me at: 828-296-4500
Sincerely,
'Katherine H. Jimis n
Chemistry Technician
Enclosure
cc: Central Files
0MM,MET, ill= Files
C:\Documents and Settings\khjimison2\Desktop\27359 CEI 12.doc_
SURFACE WATER PROTECTION — ASHEVILLE REGIONAL OFFICE
Location: 2090 U.S. Highway 70, Swannanoa, NC 28778 One
Phone: [phone]\FAX: [phone] NorthCarolliina
Internet: www.ncwaterguality.org Naturally

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 INI 2 15 I 31 NCO027359 Ill 121 12/08/14 117 18I C I 19I S I 20II
Remarks
211111IIIIIIIIIIII IIIIIIIIIIIIIIII II11111111111116
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA --------------- --------- Reserved ------------- — ----- —
67I 169 701 I 711 I 721 N I 73I I 174 751 I I I I I 11 80
t—t�
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
Hiwassee Hydro Plant
01:00 PM 12/08/14
07/10/01
Exit Time/Date
Permit Expiration Date
Near Hiwasse
Murphy NC 28906
01:50 PM 12/08/14
12/08/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Melissa S Tupps,Cummings Hwy Chattanooga TN 374191/423-825-3008/4238253030 ContactedYes
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Operations & Maintenance 0 Self -Monitoring Program N Facility Site Review
Effluent/Receiving Waters
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Janet Cantwell ARO WQ//828-296-4500 Ext.4667/ O
Kathy Jim' In ARO WQ//828-296-4500//�
/ " ✓Z
Signature of Management Q A Reviewer Agency/Office/Phone and'Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yr/mo/day Inspection Type 1
3 NCO027359 111 12, 12/08/14 117
18I d
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Steve Williams and Pamela Wilcoxon assisted in the inspection of this facility.
Data and record keeping appear to be well maintained.
Visual inspection of the discharge area of the facility revealed that it is well maintained.
Mr. Williams stated a small oil leak from some equipment was being captured by absorbent padding and
was not reaching the receiving stream. It appeared to be working effectively.
The effluent discharge appeared clear.
Page # 2

Permit: NCO027359
Inspection Date: 08/14/2012
Owner - Facility: Hiwassee Hydro Plant
Inspection Type: Compliance Evaluation
Permit
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Yes No NA NE
■nnn
■nnn
nn■n
■nnn
Is the inspector granted access to all areas for inspection? ■ U L-1 U
Comment:
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ D
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge fl fl rl
Judge, and other that are applicable?
Comment:
Page # 3

iael F. Easley, Governor
n G. Ross Jr., Secretary
North Carolina Department or Envirr.....Tit and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
Asheville Regional Office
SURFACE WATER PROTECTION
e{
I
April 5, 2007
f'
Ms. Janet Herrin
Tennessee Valley Authority
400 West Summit, Hill Drive
Knoxville, Tennessee 37902-1411
SUBJECT: Compliance Evaluation Inspection
Hiwassee Hydro Plant
Permit No: NCO027359
Cherokee County
Dear Ms. Herrin:
Enclosed please find a copy of the Compliance Evaluation Inspection form from
the inspection conducted on March 29, 2007. Mr. Keith Haynes and I of the Asheville
Regional Office conducted the Compliance Evaluation Inspection. The facility was found
to be in Compliance with permit NC0027359.
. Please refer to the enclosed inspection report for additional observations and
comments. If you or your staff have any questions, please call Mr. -Haynes at 828-296-
4500 Ext.4658.
Enclosure
10 1- - �d*_'Ij 7
Sincerely,
L ry rost
nvironmental Engineer
NorthCarolina
Vatumllb(
2090 U.S. Highway 70, Swannanoa, NC 28778 Telephone: [phone] Fax: [phone] Customer Service 1 877 623-6748

•
United States Environmental Protection Agency
EPAEPAWashington, D.C. 20460
Form Approved.
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
2 I_I 3 I - s i- 111 121 t? r a,•'s ? 117
181 I 191 <; I 201 1
I�
Remarks
21111111111111111111111111111111111111111111111116
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA
--------------------------- Reserved ----------------------
67I 169 701 I 711 I 721 t•,' I
731 I 174 751 I I I I I I 180
I I I
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
Exit Time/Date
Permit Expiration Date
i•;ee.r. aarasse
Nl-.._.:C'};i?` f' 28 i3O*6
1.2:2) F'c_ G'. 03 ....
., t) ,•'31.
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
NO
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 10 Operations & Maintenance 0 Facility Site Review
® Effluent/Receiving Waters
Section D: Summary of Finding/Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
.. .� .. ..
1. :. )•.I:.t !'.,:Zl., l.y, i .:�'. ...� ,.... ,: ,..I 0
:Fri.;(`,
,.....
is J.:..y.;,...,es AR-,)
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Dat
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

0
NPDES yr/mo/day Inspection Type
,. I11 12I
.,1,J27,31: 9 : '7 03 / ^o 117
.... �.. 18I;-;I
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
The facility was not operating on the day of the inspection. The only discharge was cooling water. There
was no oil sheen in the discharge.
Page # 2

E
11
Permit: NCO027359
Inspection Date: 03/29/2007
Owner - Facility: Hiwassee Hydro Plant
Inspection Type: Compliance Evaluation
Operations : Maintenance
.:........._...._........................_....................................... ._.............._
Yes
No
NA
NE
Is the plant generally clean with acceptable housekeeping?
❑
❑
❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge
n
rl
■
❑
Judge, and other that are applicable?
Comment:
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
n
n
n
Is the facility as described in the permit?
®
❑
❑
❑
# Are there any special conditions for the permit?
®
❑
❑
❑
Is access to the plant site restricted to the general public?
®
❑
❑
❑
Is the inspector granted access to all areas for inspection?
n
n
■
❑
Comment: This permit expires 8/31/07. The renewal application was recieved
February 12, 2007.
Page # 3

so -
Tennessee Valley Authority, 400 West Summit Hill Drive, Knoxville, Tennessee 37902-
Janet C. Herrin, P.E.,
Senior Vice President
River Operations
August 17, 2005
Mr. Keith Haynes
Department of Environment
and Natural Resources
Division of Water Quality
2090 U.S. Highway 70
Swannanoa, North Carolina 28778
Dear Mr. Haynes:
iE C E � W E�j
AUG 2 5 2005
a
WATER QUALITY SECTION
ASI"=VILLE PL=G.10N!1 ,L OF�1C.E
Reference: August 4 letter from Keith Haynes to Janet Herrin - Compliance Evaluation
Inspection Report - Hiwassee Hydro Plant (HIH), - National Pollutant
Discharge Elimination System Permit Number NCO027359
Per your request in the referenced report, enclosed are plant system schematic
drawings 47W2303SR5 (Valve Operation Diagram - Unwatering and Filling Systems)
and 47W2306S412 (Valve Operation Diagram - Raw Water System) showing the
locations of all outfalls at HIH.
The minimum normal operating tail water level at HIH is at elevation 1272.5. The
discharge elevation for each outfall is listed below:
Outfall #001
Discharge Elevation 1265.17
Outfall #002
Discharge Elevation 1270.0
Outfall #003
Discharge Elevation 1268.5
Outfall #004
Discharge Elevation 1264.0
Outfall #005
Discharge Elevation 1267.0
All the outfalls are below the minimum tail water levels and, therefore, are not visible
from the surface.
Printed on recycled paper

M
LZI
Mr. Keith Haynes
Page 2
August 17, 2005
If there are any questions or additional information required, please contact Melissa
Tupps at [phone].
Sincerely,
O&jz (?. d"IC-ol
01
Janet C. Herrin
Enclosures

A
90�ZML-V I Vi 19 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 1 10 1 11 1 12 1
a �zm
HIM
VALVE OPERATION DIAGRAM
RAW WATER SYSTEM
Fl� HIWASSEE T TENNESn,��LE.Y.�ZU?RITY

COCZML-V N 9
2 3 4 5
6 7 8
9 I
10 11
OM & 1­0�
­S GFU 0 47 H TTl
12 FIT TO.
VE BO% RIMS ARE YARNED
1-S
Pulp S-TS
'I'M
IT.
2-
PRESSURE Il-
128l.
S_
�
71
r
WITST-I
UNIT
U­
IlA. Pulp EDUCIW ROOK
- . 11 FT
AIR ­T UxLS I-. PO
-
M ­4­
TV 12111
-A�,FRQNIZ� up' T.-
D-N
-IN
VPPF 11
I
EI. t26G t-j
1.1.0 PUMP _TS
P"
(21!PP-IPE)
0. 12-1
& 12- 2 NE) PUMP
AN — _N,,s
srARmUNIT
­0 Pulp ST,,FS
POWERHOUSE SEWAGE DISPOSAL SYSTE
"ulp STAR Ut
1251..
1251.L
ST M.P STARTS
PUMPS
I
IT I STATION SLOP
1. (APP-)
.,�.T.2 Sulp 6
2 .1 11
DRAFDRAFT
UNIT 2
IT DRAINSD
M 1211.—
121.1.
TUBE
A.
II
.0-
NOTES:
1. —ENT UNTO NUMBERING
sLLEue
PUUP
0 0 0
P. 12-0-r],
12.111 T, I-12•
II
xO
..H -13
UNIDS IN MIS DRAWING IT IS
FIT TA -EN UNIDS -f LIST THE I M
MA.1- .._. u..
U1IDr UTHE ­IG S-1 AND
POWERHOUSE UNWATERING SYSTEM
U uNWA I�rSE
u. ION VALVE
IRE (P.-TER
A Tlp TEAP_
NOTE
V`­ PFS­S DRAWING INDI-
=WAVINnIN POWEAIOUSE -u INS I. " DISF-
REFERENCE DRAWINGS
41. 2---.1­­A­-.-TA GS -1
PROJECT RE EST
BYPASS
L_ W
1-1— STARTS
R ­111�fffft-
-2
121.1- STOPS
Il-I �­T 1)
lIT
SCALE: NONE
POWERHOUSE & DAM
VALVE OPERATION DIAGF
..p (APP..)
I,' gmkl ;T
I I - - I -PS,•
Ili- AIR
UNWATERING & FILLING
ABOYE
NET M TAPS
SIX D. 1—FOR
Is vaBE
SYSTEM
_c�
DAM UNWATERING SYSTEM
I� -T CIN D­
IS - ..A.
HIWASSEE PROJEC*
FILLING SYSTEM -UNIT 2
­T 1ST.-
TENNESSEE VALLEY AUTF
A- RI, TF,47W23
1 2 3 4 5 67
7 8
I . J
ELECTRON.CA- RESTORED DRAWING
T. ..BEEN.COMPLETELY REDRAWN
SUPERSEDES 'r47N2303 R2)
AND SUPERSEDES
I PLOT FACTO

C ivncnaei r. tasiey, Governor
"Q William G. Ross Jr., Secretary
\Q G North Carolina DepartmenjMvirenmentgnd Katural Resources
�I_., I �"
�a) r' flan W, Klimek, P E Director
Division of Water Quality
Q Asheville Regional Office
SURFACE WATER PROTECTION
August 4, 2005
Janet C Herrin
Tennessee Valley Authority
400 W Summit Hill Dr
Knoxville TN 37902
SUBJECT: Compliance Evaluation Inspection
Hiwassee Hydro Plant
Permit No: NCO027359
Cherokee County
Dear Ms. Herrin:
Enclosed please find a copy of the Compliance Evaluation. Inspection Report for
the inspection, which. Mr. Larry Frost and I conducted at the subject facility on August 2,
2005. The facility was found to be in Compliance with permit NC0027359.
Please refer to the enclosed inspection report for additional observations and
comments. The assistance provided by Mr. Phillip Wilcox during the inspection was
greatly appreciated. If you or your staff, have any questions, please do not hesitate to
contact Mr. Frost or me at 828-296-4500.
Sincere ,
Keith Hayne
Environmental Specialist
Enclosure
cc: Central Files
si�l��;e'�F�1es
NorthCarolina
Natirralljl
2090 U.S. Highway 70, Swannanoa, NC 28778 Telephone: [phone] Fax: [phone] Customer Service 1 877 623-6748

0
United States Environmental Protection Agency
/A Washington, D.C. 20460
EPA.
Cr/'1
Form Approved.
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 .1 2 U 31 NC0027359 111 121 05/06 02 117 18 U 19 L-1 20 U
Remarks
21IIIIIIIII111111111111111 1111111111l1IIIlilIIII166
Inspection Work Days Facility Self -Monitoring Evaluation Rating 131 QA --------------------------- Reserved --- ------------ ------
67 I 169 70 U 71 U 72 LL4 J 73 W 74 751 I I I I I 11 a0
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
POTW name and NPDES permit Number)
Entry Time/Date
Permit Effective Date
Hi:vassee Hydro Plant
10:50 ?M 05/08/02
02;09/01
Exit Time/Date
Permit Expiration Date
Near Hiwasse
Murptiv NC 28906
11.30 AM 05/08,102
07,/08/31
Name(s) of Onsite Rep resentative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Janet C her:-in,400 P: S:in?ma.t Hill.. Dr Knoxville TN 37902/t+3ar_ager
Envir-cnmental/8o5-632--6770j ,. 8656326137 No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Operations & Maintenance 0 Facility Site Review . Effluent/Receiving Waters
Section D: Summary of Find in/Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of t, Inspector(s) / Agency/Office/Phone and Fax Numbers Date
2
LarFrost ARO 1Q//8'28-296-4500 Ext.4658/ (/ Q/✓A5
Keith Haynes ADO G101/828--296-4500 Ext.46601'
6- 3,CS-
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Roaer C Ed-,Pard; � 828-296-4500 Ett..4556; Z
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.

i
"!4
NPDES yr/mo/day Inspection Type
3 I N=02 ;. j5, 111 12, 05/08102 117 181,., I
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
No problems were noted. All sump areas appeared to be clean with oil absorbing pads place on areas of minor
leakage. During the inspection we were not able to determine, other than they are in the tailrace, where
the outfall pipes are located. it is requested that TVA submit, to the Asheville Regional Office, a
schematic indicating the location; of the oucfalls for clarification and for future reference.

Permit
(if the, present permit expires in 6 months or less). Has the permittee.SUbmitted a new application?
Is the facility as described in the permit?
Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment:
Operations & Maintenanep
Is the plant generally clean with acceptable housekeeping?
Does the facility analyze process control pararneters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge Judge
and other that are applicable?
Comment:
Yes No NA NP
■ ❑ ❑ ❑
0 ❑ ❑ ❑
❑ ❑ ❑
M ❑ ❑ ❑
■ ❑ ❑ ❑

[Fwd: TVA Hiwassee Hydro Plant - Cherokee County - NPDES Permit No. NC0027359]
Subject: [Fwd: TVA Hiwassee Hydro Plant - Cherokee County - NPDES Permit No. NCO0273591
Date: Thu, 27 Sep 2001 17:16:43 -0400
From: Tom Belnick <[e-mail]>
To: Kerry Becker <[e-mail]>
Hi Kerry- Let me know if the Region has any concerns with this request.
Thanks.
Mailto:[e-mail]
N.0 DENR-DWQ/NPDES Unit
1617 Mail Service Center, Raleigh NC 27699-1617
Work: [phone] ext. 543
Fax: [phone]
Subject: TVA Hiwassee Hydro Plant - Cherokee County - NPDES Permit No. NCO 027359
Date: Thu, 27 Sep 2001 16:19:31 -0400
From: "Stiefel, Mike" <[e-mail]>
To: "'[e-mail]"' <[e-mail]>
CC: "Tupps, Melissa S." <[e-mail]>
Mr. Belnick:
Per our telephone conversation of this afternoon, I am submitting a brief
description of a proposed maintenance activity at Hiwassee Hydro Plant and
requesting your review and concurrence for proceeding. TVA would like to
begin this operation within the next few days if possible.
Outfalls 003 and 004 at the subject facility consist of once -through,
noncontact cooling water (raw river water) used to remove waste heat from
the generator air coolers and bearing coolers. No chemical additives are
used in these cooling systems. TVA would like to mechanically clean
(scrape) the inside of the cooling water inlet and discharge piping to
remove accumulated sediment deposits. The material would be periodically
flowing to the tailrace with approximately 6-12 gpm of river water over a
period of approximately one to two days. Because the inlet and outlet
piping is submerged, there are no practical alternatives.
Thank you for your consideration of this request.
Mike Stiefel
Environmental Affairs
LP 5D -C
423-751-6844
Pager 800-283-0028, ID#9484
I of 1 9/28/2001 9:52 AM