NCG500657_Permit (Issuance)_20110916

ATA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
September 16, 2011
Duke Energy Carolinas, LLC
Attention: Allen Stowe
526 South Church Street, Interoffice — EC13K
Charlotte, NC 28202
Subject: Certificate of Coverage NCG500657
General Permit NCG500000
Duke Energy Carolinas, LLC
Franklin Hydroelectric Station
Macon County
Dear Mr. Stowe:
In accordance with your application for discharge, the Division is forwarding herewith the subject Certificate of Coverage
to discharge under the subject state-NPDES general permit. This permit is issued pursuant to the requirements of North
Carolina General Statue 143-215 .1 and the Memorandum of Agreement between North Carolina and the US
Environmental Protection agency dated July 17, 2007 (or as subsequently amended).
The following information is included with your permit package:
• A copy of the Certificate of Coverage for your treatment facility
• A copy of General Wastewater Discharge Permit NCG500000
• A copy of a Technical Bulletin for General Wastewater Discharge Permit NCG500000
If any parts, measurement frequencies or sampling requirements contained in this general permit are unacceptable to
you, you have the right to request an individual permit by submitting an individual permit application. Unless such demand
is made, the certificate of coverage shall be final and binding.
Please take notice that this Certificate of Coverage is not transferable except after notice to the Division of Water Quality.
The Division of Water Quality may require modification or revocation and reissuance of the certificate of coverage. 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, 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 Bob
Guerra at telephone number 919/807-6387 or by email at bob.querra(ncdenr.gov.
Sincerely,
Coleen H. Sullins
cc:
Asheville Regional Office, Surface Water Protection
NPDES General Permit Files
Central Files
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org
An Equal Opportunity \ Affirmative Action Employer
NorthCarolina
Naturally

Permit NCG500657
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
Certificate of Coverage NCG500657
General Permit NCG500000
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE, EXEMPT STORMWATER, COOLING WATERS ASSOCIATED
WITH HYDROELECTRIC OPERATIONS, AND SIMILAR WASTEWATERS UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1, other lawful
standards and regulations promulgated and adopted by the North Carolina Environmental
Management Commission, and the Federal Water Pollution Control Act, as amended,
Duke Energy Carolinas, LLC
is hereby authorized to discharge wastewater from a facility located at the
Franklin Hydroelectric Station
Macon County
to the Little Tennessee River, a class C water in the Little Tennessee River Basin in accordance
with effluent limitations, monitoring requirements and other conditions set forth in Parts I, II,
III and IV of the General Permit NCG 500000, as attached.
This permit shall become effective September 16, 2011.
This Certificate of Coverage shall expire at midnight on July 31, 2012.
Signed this day September 16, 2011.
Fir feen H. Sullins., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Outfall 001
Duke Energy Corporation
Franklin Hydroelectric Project WWTP
Latitude: 35° 13' 1.1" N State Grid: Corbin Knob
Longitude: 83°22' 15" W Permitted Flow: N/A
Receiving Stream: Little Tennessee Drainage Basin: Little Tennessee River
Stream Class: C Sub -Basin: 04-04-01
Facility
Location
not to scale
AAR"
NPDES Permit No. NCG500657
Macon County

Date: August 31, 2011
NPDES STAFF REPORT AND RECOMMENDATIONS
County Macon
NPDES Permit No. NCG500657
PART I - GENERAL INFORMATION
1. Facility and Address: Franklin Hydroelectric Project
Duke Energy Corporation
Mail Code EC13K
PO Box 1006
Charlotte, NC 28201-1006
2. Date of Investigation: June 15, 2011
3. Report Prepared By: Jeff Menzel
4. Persons Contacted and Telephone Number: Allen Stowe [phone]
5. Directions to Site: Slight right onto US-74 W/Great Smoky Mountains Expy (signs for US-
19/US-23/Clyde/Waynesville/Maggie Valley/Franklin/Murphy/Atlanta) Turn right onto
Lake Emory Rd, Take the 1st right onto Jim Berry Rd Slight left onto Clyde Downs Rd
6. Discharge Point - Latitude: 35 13' 10.92"N Longitude: 83 22' 14.94"W
Attached a USGS Map Extract and indicate treatment plant site and
discharge point on map.
USGS Quad No. 35083b3 or USGS Quad Name Corbin Knob
7. Size (land available for expansion and upgrading): N/A
8. Topography (relationship to flood plain included): Hydro dam located at the end of Lake
Emory
9. Location of nearest dwelling: 68 Meters
10. Receiving stream or affected surface waters: Little Tennessee
a. Classifications: "C"
b. River Basin and Subbasin No.: 04-04-01
c. Describe receiving stream features and pertinent downstream
uses: Little Tennessee provides habitat for the
C:1Documents and Settings\Bob_GuerralLocal Settings\Temporary Internet
Files\Content.Outlook\EE7F8SL11Franklin Hydro Staff Report.docx

propagation of wildlife and opportunities for recreational activities
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Type of wastewater: 100% Industrial
a. Volume of Wastewater: MGD
b. Types and quantities of industrial wastewater: non -contact cooling water
c. Prevalent toxic constituents in wastewater: N/A
d. Pretreatment Program (POTWs only)
in development approved
should be required not needed X
2. Production rates (industrial discharges only) in pounds N/A
a. highest month in the last 12 months
b. highest year in last 5 years
3. Description of industrial process (for industries only). The Franklin Project is located in
Macon County, North Carolina, on the Little Tennessee River near the town of Franklin.
The Project consists of a concrete gravity dam approximately 36-feet high and 460-feet
long, a powerhouse containing two generating units with a total installed capacity of 1.04
MW, related electric power production components and facilities; and a reservoir
approximately 4.6 miles in length. The Project has limited storage and no change to the
facilities or operation of the Project is being requested.
4. Type of treatment (specify whether proposed or existing): N/A
5. Sludge handling and disposal scheme: N/A
6. Treatment plant classification:
C:\Documents and Settings\Bob_GuerralLocal Settings\Temporary Internet
Files\Content.OutlooklEE7F8SL11Franklin Hydro Staff Report.docx

PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grants Funds
(municipals only)? N/A
2. Special monitoring requests: None
3. Additional effluent limits requests:
4. Other:
PART IV - EVALUATION AND RECOMMENDATIONS The Asheville Regional
Office recommends issuance of NPDES Permit Number NCG5 to Duke Energy
Carolinas Franklin Hydro Project.
Signature of Report Preparer
Water Quality Regional Supervisor
C:\Documents and Settings\Bob_Guerra\Local Settings\Temporary Internet
Files\Content.Outlook\EE7F8SL11Franklin Hydro Staff Report.docx

MkDuke
Energy®
July 15, 2011
Mr. Robert Guerra
State of North Carolina
Department of Environment and Natural Resources
Division of Water Quality
Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: Duke Energy Carolinas, LLC — NPDES Permit Application
Renewal of NPDES General Permit - #NCG500000
Franklin Hydroelectric Plant
Dear Mr. Guerra:
CORPORATE EHS SERVICES
Duke Energy
526 South Church St.
Charlotte, NC 28202
Mailing Address:
EC13K / PO Box 1006
Charlotte, NC 28201-1006
Please find enclosed in triplicate, the amended Notice of Renewal Intent for the Franklin
hydroelectric facility. Also included is a check (#1000062670) in the amount of $100.00.
Duke Energy Carolinas, LLC requests notification that this application is complete.
Thank you in advance for your assistance on this matter. Should you have questions
regarding this application, please contact me at [phone].
Sincerely,
Allen Stowe
Water Management
Attachments
cc w/: Mr. Keith Haynes — NC DENR Asheville R.O.
www.duke-energy.com

AfrA
NCDENR
•10MrH CO CIIM Cti%M71..[q/1 V>'
rHVnCCvVrvr aft, N,11:14 Rr•„s,xrf�
Division of Water Quality / Water Quality Section
National Pollutant Discharge Elimination System
/ao
NCG500000
FOR AGENCY USE ONLY
Date Received
Year
Month
Day
Ad it
07
/ Q
Certificate of Coverage
NICIGIS
4517
rol
Check it Amount
t'a RG 7 a /[%O.Oc)
Permit Assigned to
Qn/ Cuter
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG500000: Non -contact cooling water, boiler blowdown, cooling tower blowdown, condensate, and
similar point source discharges
(Please print or type)
1) Mailing address' of owner/operator:
Company Name
Owner Name
Street Address
City
Telephone No.
Duke Energy Carolinas, LLC
Allen Stowe - Water Management
526 South Church Street, Interoffice - EC13K
Charlotte
[phone]
* Address to which all permit correspondence will be mailed
2) Location of facility producing discharge:
Facility Name
Facility Contact
Street Address
City
County
Telephone No.
Franklin Hydroelectric Station
State N.C.
Fax: (704)
ZIP Code 28202
382-1681
Gary Morgan
564 Clyde Downs Road
Franklin
Macon
State N.C.
ZIP Code 28734
828 369-4605
Fax: N/A
3) Physical location information:
Please provide a narrative description of how to get to the facility (use street names, state road numbers,
and distance and direction from a roadway intersection). Take Highway 74 to Exit 81. Travel Highway 23/441 to Franklin,
turn right on Clyde Downs Road, Franklin Hydro will be on the left approximately 0.3 miles down Clyde Downs Road.
(A copy of a county map or USGS quad sheet with facility clearly located on the map is required to be submitted with this application)
4) This NPDES permit application applies to which of the following :
IR New or Proposed
❑ Modification
Please describe the modification:
❑ Renewal
Please specify existing permit number and original issue date:
5) Does this facility have any other NPDES permits?
.cM©E}duD
JUL 1 9 2011
• . - w •t
POINT SOURCE BRANCH
IR No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
6) What is the nature of the business applying for this permit? Electric Generation
Page 1 of 4
04/05

NCG500000 N.O.I.
7) Description of Discharge:
a) Is the discharge directly to the receiving water? 8 Yes ❑ No
If no, submit a site map with the pathway to the potential receiving waters clearly marked. This
includes tracing the pathway of the storm sewer to the discharge point, if the storm sewer is the only
viable means of discharge.
b) Number of discharge points (ditches, pipes, channels, etc. that convey wastewater from the
property): 1
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
8 Non -contact cooling water Discharge point(s) #: 001
❑ Boiler Blowdown Discharge point(s) #:
❑ Cooling Tower Blowdown Discharge point(s) #:
❑ Condensate Discharge point(s) #:
❑ Other Discharge point(s) #:
(Please describe "Other")
d) Volume of discharge per each discharge point (in GPD):
#1: 4.74E +8 #2: #3: #4
e) Please describe the type of process (i.e., compressor, NC unit, chiller, boiler, etc.) the wastewater is
being discharged from, per each separate discharge point (if applicable, use separate sheet):
Hydroelectric generator
8) Please check the type of chemical added to the wastewater for treatment , per each separate discharge
point (if applicable, use separate sheet):
❑ Biocides Name: Manuf.:
❑ Corrosion inhibitors Name: Manuf.:
❑ Chlorine Name: Manuf.:
❑ Algaecide Name: Manuf.:
❑ Other Name: Manuf.:
B None
9) If any box in item (8) above, other than none, was checked, a completed Biocide 101 Form and
manufacturers' information on the additive is required to be submitted with the application for the
Division's review.
10) Is there any type of treatment being provided to the wastewater before discharge (i.e., retention ponds,
settling ponds, etc.)? ❑ Yes B No
If yes, please include design specifics (i.e., design volume, retention time, surface area, etc.) with
submittal package. Existing treatment facilities should be described in detail. Design criteria and
operational data (including calculations) should be provided to ensure that the facility can comply with the
requirements of the General Permit. The treatment shall be sufficient to meet the limits set by the
general permits.
Note: Construction of any wastewater treatment facilities requires submission of three (3) sets
of plans and specifications along with the application. Design of treatment facilities
must comply with the requirements of 15A NCAC 2H .0138. If construction applies to
this discharge, include the three sets of plans and specifications with this application.
Page 2 of 4 04/05

NCG500000 N.O.I.
11) Discharge Frequency:
a) The discharge is: B Continuous 0 Intermittent 0 Seasonalo
i) If the discharge is intermittent, describe when the discharge will occur: NIA
ii) If seasonal check the month(s) the discharge occurs: 0 Jan. 0 Feb. 0 Mar. 0 Apr.
0 May 0 Jun. 0 Jul. 0 Aug. ❑ Sept. 0 Oct. 0 Nov. 0 Dec.
b) How many days per week is there a discharge? 7
c) Please check the days discharge occurs:
8 Sat. 8 Sun. B Mon. 8 Tue. 8 Wed. B Thu. 8 Fri.
12) Pollutants:
Please list any known pollutants that are present in the discharge, per each separate discharge point (if
applicable, use separate sheet):
13) Receiving waters:
a) What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility
wastewater discharges end up in? If the site wastewater discharges to a separate storm sewer
system (4S), name the operator of the 4S (e.g. City of Raleigh). Little Tennessee River
b) Stream Classification: Class C
14) Alternatives to Direct Discharge:
Address the feasibility of implementing each of the following non -discharge alternatives
a) Connection to a Municipal or Regional Sewer Collection System Not Available
b) Subsurface disposal (including nitrification field, infiltration gallery, injection wells, etc.) Too much flow
c) Spray irrigation Not justifiable, no significant thermal gradient or pollutant load
The alternatives to discharge analysis should include boring logs and/or other information indicating that
a subsurface system is neither feasible nor practical as well as written confirmation indicating that
connection to a POTW is not an option. It should also include a present value of costs analysis as
outlined in the Division's "Guidance For the Evaluation of Wastewater Disposal Alternatives'.
15) Additional Application Requirements:
For new or proposed discharges, the following information must be included in triplicate with this
application or it will be returned as incomplete.
a) 7.5 minute series USGS topographic map (or a photocopied portion thereof) with discharge location
clearly indicated.
b) Site map, if the discharge is not directly to a stream, the pathway to the receiving stream must be
clearly indicated. This includes tracing the pathway of a storm sewer to its discharge point.
c) If this application is being submitted by a consulting engineer (or engineering firm), include
documentation from the applicant showing that the engineer (Or firm) submitting the application has
been designated an authorized Representative of the applicant.
d) Final plans for the treatment system (if applicable). The plans must be signed and sealed by a North
Carolina registered Professional Engineer and stamped "Final Design -Not released for construction".
Page 3 of 4 04/05

NCG500000 N.D.I.
e) Final specifications for all major treatment components (if applicable). The specifications must be
signed and sealed by a North Carolina registered Professional Engineer and shall include a narrative
description of the treatment system to be constructed.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: Carol S.Goolsby
Title: Vice President, Hydro Fleet
7//5/....24:)//
(Signature of Applic t) (Date Signed)
North Carolina General Statute 143-215.6 b (i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any
application, record, report, plan or other document filed 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.)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
NCDENR
Mail three (3) copies of the entire package to:
NPDES Permits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Final Checklist
This application will be returned as incomplete unless all of the following items have been
included:
B Check for $100 made payable to NCDENR
8 3 copies of county map or USGS quad sheet with location of facility clearly marked on map
8 3 copies of this completed application and all supporting documents
❑ 3 sets of plans and specifications signed and sealed by a North Carolina P.E.
B Thorough responses to items 1-7 on this application
B Alternatives analysis including present value of costs for all alternatives
Note
The submission of this document does not guarantee the issuance of an NPDES permit
Page 4 of 4 04/05

{t atau+Ia
Discharge Location: 001
35°13'11" N
83°22'14.75" W
NOTE'
1) USGS 7.5 Minute Series Topographic Quadrangles: Corbin Knob and Franklin (NC)
[Source: ftp•J/ftp.nconemap.com/outgoing/raster/drg/)
Drawn By: Chad Hearn
Project Manager: Bill Miller
Client: Duke Energy
Date: 06/23/2011
SCALE
0 500 1.000 2,000
Feet
DISCHARGE LOCATION MAP
NPDES General Permit NCG500000 NOI
DUKE ENERGY
FRANKLIN HYDRO STATION
MACON COUNTY, NORTH CAROLINA
35°12'30" N
FIGURE
1

f