NCG500110_Regional Office Historical File 1988 to 2019

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DUKE
ENERGYt
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
February 21, 2019
Mr. Landon Davidson, Regional Supervisor
NC DEQ Division of Water Resources
Asheville Regional Office
2090 U.S. 70 Highway
Swannanoa, NC 28778-82111
Subject: Duke Energy Carolinas, LLC
Tuxedo Hydroelectric Generation Station
Pot Shoals Road, Flat Rock, NC
Inadvertent Release of Petroleum Product
NC NPDES Permit No. NCG500110
NRC Incident No. 1238087
Henderson County
Dear Mr. Davidson:
Duke Energy Corporation
257 Duke Lane
Stanley, North Carolina 28164
pYtsiond WaW jWkA�
;�.:.
.b
�
FEB � 5 2019
nt0
Please accept this letter as written notification of an inadvertent release of a petroleum product
(lubricating oil) associated with an overflow while lubricating a turbine bearing at the Tuxedo
Hydroelectric Generation Station. Permit No. NCG500000 Part II, Section E Reporting
Requirements requires twenty-four (24) hour notification and a five (5) day written notification of
the inadvertent release.
The Tuxedo Hydroelectric Generation Station experienced a minor release of petroleum product
into the Green River (Class C Trout Surface Waters). The inadvertent release of petroleum
product sheen was confirmed at approximately 15:45 on Tuesday, February 19, 2019, and was
promptly reported to the National Response Center (NRC). A telephone notification was also.
made to your office approximately 10:00 on February 20, 2019. The total inadvertent release
volume is estimated to be approximately 0.5 cup (4 ounces). The size of the sheen was
approximately twelve (12) feet by twelve (12) feet. The generation units were not operational
during these maintenance activities.
The inadvertent release was promptly contained by use of absorbent booms in the tailrace. area.
Absorbent pads were also deployed to absorb the sheen on the water. No adverse
environmental impacts were observed, nor do we anticipate any adverse public health aspects
associated with this inadvertent release.
All traces of the inadvertent release will be properly cleaned up and all contaminated materials
will be properly disposed. The generation station will not be returned to service until cleanup
activities are complete. We believe appropriate actions have been taken to properly manage
this inadvertent release.
0 A NN,` D

Water- Resources
ENVIRONMENTAL QUALITY
Mr. Steve Cahoon
Duke Energy Carolinas, LLC
410 S Wilmington St
Raleigh, NC 27601
Dear Permittee:
PAT MCCRORY
DONALD R. VAN DER VAART
' S. JAY ZIMMERMAN
i
i
Jhr r. n;r
I
January 19, 2016
Subject: Renewal of General Permit NCG500000
Tuxedo Hydroelectric Station
Certificate of.Coverage NCG500110
Henderson County
The Division has renewed the subject General Permit. We appreciate your patience during the
longer -than -expected renewal period. The Division hereby issues the updated version of Certificate of
Coverage (CoC) NCG500110 under General Permit NCG500000. It 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 October 15, 2007 [or as subsequently amended].
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. The Division may require modification or revocation and reissuance of the certificate of coverage.
Contact the Asheville Regional Office prior to any sale or transfer of the permitted facility.
Regional Office staff will assist you in documenting the transfer of this CoC
This permit does not affect the legal requirements to obtain any other State, Federal, or Local
governmental permit that may be required. If you have any questions concerning the requirements of the
General Permit, please contact Charles Weaver of the NPDES staff [919 807=6391 or
charles.weaver@ncdenr. gov].
cc: Asheville ' _egion1al Office
NPDES file
Sinc rely,
for S. Jay Zimmerman, Director
Division of Water Resources
State of North Carolina I Environmental Quality I Water Resource.
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 . 919-807-6389 FAX
http://portal.ncdenr.org/web/wq
RECEIVE©
Division of Water Resources
JAN 2 8 2016
1Valer Qualth, Regional Operations

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500110
DISCHARGE OF 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 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,
Duke Energy Carolinas, LLC
is hereby authorized to discharge from a facility located at the
Tuxedo Hydroelectric Station
Pot Shoals Rd
Flat Rock
Henderson County
to receiving waters designated as the South Prong Green River, a class C-Trout stream in
subbasin 03-08-03 of the Broad River Basin in accordance with the effluent limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III and IV hereof.
This certificate of coverage takes effect January 19, 2016.
This Certificate of Coverage shall remain valid for the duration of the General Permit.
Signed this day January 19, 2016
G-
for ay Zimmerman, Director
Division of Water Resources
By Authority of the Environmental Management Commission

Pat McCrory
Governor
NCDENR
North Carolina Department of Environment and Natural Resources .
Division of. Water Resources
Thomas A., Reeder John'E. Skvarla, III
Director Secretary
NOTICE OF RENEWAL INTENT
[Required by 15A NCAC 02H .0127(d)]; [term definition see 15A NCAC 02H .0103(19)] .
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoQ: NCG500110
(Press Tab to navigate form)
1) Mailing address of facility owner/operator: (address to which all correspondence should be mailed)
Company Name Duke Energy Carolinas, LLC
Owner Name Steve Cahoon
Street Address 410 S. Wilmington St.
City Raleigh State NC ZIP Code 27601 -
Telephone # 919 - 546.- 7457 Fax # 919 - 546 - 4409 .
Email Address [e-mail]
2) Location of facility producing discharge:
Facility Name
Tuxedo Hydroelectric Station
Facility Contact
Nob Zalme
Street Address
Rt.1 Box 104A, Pot Shoals Road
City
Flat Rock State NC ZIP Code 28731-
County
Henderson
Telephone #
336 - 462 - 0221 Fax # - -
Email Address
[e-mail]
3) Description of Discharge:
a) Is the discharge directly to the receiving stream?
® Yes
❑ No — Please 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 outfalls (ditches, pipes, channels, etc. that convey wastewater from the property):
Two
Pagel of 3

NCG500000 Renewal Application
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
® Non -contact cooling water Outfall (s) #: 001, 002
❑ Boiler Blowdown Outfall (s) #:
❑ Cooling Tower Blowdown Outfall (s) #:
❑ Condensate Outfall (s) #:
❑ Other ' Outfall (s) #:
(Please describe "Other"):
d) Volume of discharge per each discharge point (in GPD):
#001: 21,600 GPD 4002: 21,600 GPD #003: GPD 4004: GPD
4) Please check the type of chemicals] added to the wastewater for treatment, per each separate discharge
point (if applicable, use separate sheet):
❑ Chlorine ❑ Biocides ❑ Corrosion inhibitors ❑ Algaecide ❑ Other ® None
If any box other than None is checked, a completed Biocide 101 Form and manufacturers' information on the
additive must be submitted to the following address for approval:
NC DENR / DWR / Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
5) Is there any type of treatment being provided to the wastewater before discharge? (i.e., retention ponds,
settling ponds, etc.)
❑ 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.
® No
6) Discharge Frequency:
a) The discharge is: ® Continuous ❑ Intermittent ❑ Seasonal
i) If the discharge is intermittent, describe when the discharge will occur:
ii) If seasonal, check the month(s) the discharge occurs:
❑ Jan ❑ Feb ❑ Mar. ❑ Apr ❑ May ❑ Jun ❑ Jul ❑ Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑ Dec.
b) How many days per week is there a discharge? Seven
c) Please check the days discharge occurs: ® Sat. ® Sun. ® Mon. ®. Tue. ® Wed. ® Thu. ® Fri.
Page 2 of 3

ppppoop'
NCG500000 Renewal Application
Additional Application Requirements:
The following information must be included in duplicate [original + 1 copy] with this application or it
will be returned as incomplete.
➢ 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.
➢ Authorization for representatives. If this application will be submitted by a consulting
engineer (or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized. Representative of the
applicant, per 15A NCAC 02H .0138(b)(1).
CERTIFICATION
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: Randy C. Herrin
(Please review 15A NCAC 02H .0106(e) for authorized signing officials)
Signature of.
North Carolina General Statute & 143-215.613 provides that:
Title: GM III Regional Fleet
64013Clic c�i(L to enter a date.
Date Signed .
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 this Article or a rule implementing this
Article; or who knowingly makes a false statement of a material fact in a rulemaking proceeding or contested case
under this Article; or who falsifies, tampers with, or knowingly renders inaccurate any recording or monitoring device
or method required to be operated or maintained under this Article or rules of the Commission implementing this
Article, shall be guilty of a Class 2 misdemeanor which may include a fine not to exceed ten thousand dollars
($10,000). 18 U.S.C. Section 1001 provides a punishment by a fine or imprisonment not more than 5 years, or both,
for a similar offense.
This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000.
Mail the original and one copy of the entire package to:
NC DENR / DWR / Water Permitting Section
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Attn: Charles Weaver
Page 3 of 3

-"qNq

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
NOTICE OF RENEWAL INTENT
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoC): NCG500110
(Please print or type)
1) Mailing address* of facility owner/operator:
Company Name Duke Energy Carolinas, LLC
Owner Name Allen Stowe, Scientist - Water Management
Street Address 526 South Church Street; EC13K
City Charlotte State NC ZIP Code 28202
Telephone Number(704) 382-4309 Fax: [phone]
Email address jastowe(a-)duke-energy.com
* Address to which all permit correspondence should be mailed
2) Location of facility producing discharge:
Facility Name Tuxedo Hydroelectric Station
Facility Contact Randy Horton
Street Address Pot Shoal road
City Flat Rock State NC ZIP Code 28731
County Henderson
Telephone Number(828) 698-2070 Fax: N A
Email address wrhortona,duke-eneray.com
3) Description of Discharge:
a) Is the discharge directly to the receiving stream? E 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 outfalls (ditches, pipes, channels, etc. that convey wastewater from the
property): One
c) What type of wastewater is discharged? Indicate which discharge points,.if more than one.
E Non -contact cooling water
❑ Boiler Blowdown
Outfall(s) #: 001
Outfall (s) #:
Page 1 of 3

NCG500000 renewal application
1
❑ Cooling Tower Blowdown Outfall (s) #:
❑ Condensate Outfall (s) #:
❑ Other Outfall (s) #:
(Please describe "Other")
d) Volume of discharge per each discharge point (in GPD):
#001:43,200 #002: #003: #004
4) Please check the type of chemical [s] added to the wastewater for treatment, per each separate
discharge point (if applicable, use separate sheet):
❑ Chlorine ❑ Biocides ❑ Corrosion inhibitors ❑ Algaecide ❑ Other
® None
5) If any box in item (4) above [other than None] was checked, a completed Biocide 101 Form and
manufacturers' information on the additive must be submitted to the following address for approval:
NC DENR / DWQ / Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
6) Is there any type of treatment being provided to the wastewater before discharge (i.e., retention
ponds, settling ponds, etc.)? ❑ Yes ® 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. )
7) Discharge Frequency:
a) The discharge is: ® Continuous ❑Intermittent ❑ Seasonal*
i) If the discharge is intermittent, describe when the discharge will occur:
ii) *Check the month(s) the discharge occurs: ❑ Jan ❑ Feb ❑ Mar. ❑ Apr ❑ May ❑ Jun ❑
Jul ❑ Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑ Dec.
b) How many days per week is there a discharge? Seven
c) Please check the days discharge occurs: ® Sat. ® Sun. ® Mon. ® Tue. ® Wed. ® Thu.
Fri.
8) Receiving stream[s]:
a) To what body or bodies of water (creek, stream, river, lake, etc.) does the facility discharge
wastewater? If the site discharges wastewater to a separate storm sewer system (4S), name the
operator of the 4S (e.g. City of Raleigh). Green River
b) Stream Classification: TR,C
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements:
The following information must be included in triplicate [original + 2 copies] with this application or
it will be returned as incomplete.
➢ 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.
➢ Authorization for representatives. If this application will be submitted by a consulting
engineer (or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of
the applicant.
Certification
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: General Manager, Hydro Fleet
(Signature of Applicant) (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.)
aE06EC(EaEaECCEOCEaEaEaEOGEa
This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000
aEaEaEaEaeaEaEaEaEaEaEa
Mail the original and two copies of the entire package to:
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of 3

4
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Mr. Allen Stowe, Jr.
Duke Energy Corporation
526 South Church Street / EC 13K
Charlotte, NC 28202
Dear Permittee:
Division of Water Quality
Charles Wakild, P.E.
Director
August 3, 2012
Dee Freeman
Secretary
Subject: Renewal of coverage / General Permit NCG500000
Tuxedo Hydroelectric Station
Certificate of Coverage NCG500110
Henderson County
The Division is renewing Certificate of Coverage (CoC) NCG500110 to discharge under NPDES
General Permit NCG500000. This CoC 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 October 15, 2007 [or as subsequently amended].
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. The Division may require modification or revocation and reissuance of the certificate of coverage.
Contact the Asheville Regional Office prior to any sale or transfer of the permitted facility.
Regional Office staff will assist you in documenting the transfer of this CoC.
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 the requirements of the General Permit, please 1contact John
Hennessy [919 807-6377 or [e-mail]]. k _
Sincerely,
Original signed b
for Charles Wakild,
cc: ,Asheville Regonal_Office / Su'rface Water- Protection's .
NPDES file -
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 North Salisbury Street, Raleigh, North Carolina 27604
Phone: [phone] / FAX [phone] / Internet: www.ncwaterquality.org
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper
ennessy ! i
NorthCarohna
;Vaturmllff

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
. DIVISION OF WATER QUALITY
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500110
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND
BOILER BLOWDOWN, CONDENSATE AND SIMILAR WASTEWATERS 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,
Duke Energy Corporation
is hereby authorized to discharge Hydroelectric Dam Sumps & Non -contact Cooling Water
from a facility located at
Tuxedo Hydroelectric Station
Pot Shoal Road NCSR 1836
Flat Rock
Henderson County
to receiving waters designated as the Green River in subbasin 03-08-03 of the Broad
River Basin in accordance with the effluent limitations, monitoring requirements, and
other conditions set forth in Parts I, II, III and IV hereof.
This Certificate of Coverage shall become effective August 3, 2012.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 3, 2012
Original signed by John Hennessy
for Charles Wakild, Director
Division of Water Quality
By Authority of the Environmental Management Commission

NCDENR
r"VIRO.YHrAT mr, MMURN. RFSO.:iera
Division of Water Quality / Water Quality Section
National Pollutant Discharge Elimination System
NCG500000
FOR AGENCY USE ONLY
Date Received
Year
Mondl
Da
Certificate of Covera +e
N
Check N
Amount
Permit Assigned to
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for coverage under-.General,Permrt..,.,� r,
NCG500000: Non -contact cooling water, boiler blowdown, cooling,It _ er-b owdown—eondensate,�an
similar point source discharges �f, v� �I {
�Y !.
(Please print or type)
l mAR — 0 d
1) Mailing address of owner/operator: 2u12 iaJ
Company Name Duke Energy Carolinas, LLC
Owner Name
Street Address
City
Telephone No.
AIIenStowe - 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.
Tuxedo Hydroelectric Station
Randy Horton
Rt 1 Box 104A, Pot Shoals Road
Flat Rock
Henderson
828 698-2070
3) Physical location information:
Fax: (704
State NC ZIP Code 28731
Fax: NA
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 1.85 S to Hwy 74 w (Shelby Exit). Go to 1-26 w to the Saluda
Exit. At stop sign, turn left on Hwy 176. Turn right and go through Saluda. Cross bridge. At top of hill, turn right, follow road to powerhouse.
(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 :
❑ 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?
B 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
04105

NCG500000 N.®.I.
7) Description of Discharge:
a) Is the discharge directly to the receiving water? ® 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): Two
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
8 Non -contact cooling water Discharge point(s) #: 001,002
❑ 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: 21,600 #2: 21,600 #3: #4
e) Please describe the type of process (i.e., compressor, A/C 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.®.I.
11) Discharge Frequency:
a) The discharge is: B Continuous ❑ Intermittent
b)
c)
i) If the discharge is intermittent, describe when the discharge will occur:
ii) If seasonal check the month(s) the discharge occurs
❑ May ❑ Jun. ❑ Jul. ❑ Aug. ❑ Sept. ❑ Oct.
How many days per week is there a discharge? seven
Please check the days discharge occurs:
8 Sat. 8 Sun. ® Mon. ® Tue. B Wed. ® Thu.
12) Pollutants:
❑ Seasonal❑
❑ Jan. ❑ Feb. ❑ Mar. ❑ Apr.
❑ Nov. ❑ Dec.
8 Fri.
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). Green River
b) Stream Classification: TR,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

AA
NCG500000 N.O.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.
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 Pr .Gid _nt, Hydro Fleet
(Signature of
North Carolina General Statute 143-215.6 b (i) provides that:
(Date Signed)
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:
8 Check for $100 made payable to NCDENR
® 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.
8 Thorough responses to items 1-7 on this application
8 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

TOPO! map printed on 09/10/07 from "North Carolina.too" and "Untitled.too"
1 m1p untedxith TOPO!S >e'001 \tiieae!Oecuaphi: (�rnu.attiem!aecytiphi:.:oc repo)

2007
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
DUKE ENERGY CORPORATION
526 South Church Street
Charlotte, NC 28202
Mailing Address:
P 0 Box 1006
Charlotte, NC 28201-1006
Subject: Duke Energy Carolinas, LLC — NPDES Permit Application Amendments
Renewal of NPDES General Permit - #NCG500000
Lookout Shoals Hydroelectric Plant.— NCG500120
Oxford Hydroelectric Plant — NCG500119
Rhodhiss Hydroelectric Plant — NCG500108
Tuxedo Hydroelectric Plant — NCG500110
Dear Mr. Guerra:
Please find enclosed in triplicate, the amended Notice of Renewal Intent for each of the
hydroelectric facilities named above.
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
Scientist, Water Management
Attachments
cc w/: Mr-F-Larry-Fros - NC DENR Asheville R.O.
Mr. Keith Haynes — NC DENR Asheville R.O
Eni
WATER QUALITY SECTION
3HEVILLE REGIONAL OFFICE
www. duke -energy. com

A lox
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
NOTICE OF RENEWAL INTENT
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoC): NCG500110
(Please print or type)
1) Mailing address' of facility owner/operator:
Company Name Duke Energy Carolinas, LLC
Owner Name Allen Stowe, Scientist - Water Management
Street Address 526 South Church Street, EC13K
City Charlotte State NC ZIP Code 28202
Telephone Number(7041 382-4309 Fax: [phone]
Email address iastowe(n-,duke-energy.com
* Address to which all permit correspondence should be mailed
2) Location of facility producing discharge:
Facility Name Tuxedo Hydroelectric Station
Facility Contact Randy Horton
Street Address Pot Shoal road
City Flat Rock State NC ZIP Code 28731
County Henderson
Telephone Number(828) 698-2070 Fax: NLA
Email address wrhorton(@duke-energy.com
3) Description of Discharge:
a) Is the discharge directly to the receiving stream? E 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 outfalls (ditches, pipes, channels, etc. that convey wastewater from the
property): One
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
E Non -contact cooling water
Outfall(s) #: 001
❑ Boiler Blowdown Outfall (s) #:
Page 1 of 3

NCG500000 renewal application
oling Tower Blowdown
ndensate
u uLner
Outfall (s) #:
Outfall (s) #:
Outfall (s) #:
(Please describe "Other")
d) Volume of discharge per each discharge point (in GPD):
#001:43,200 #002: #003: #004
4) Please check the type of chemical [s] added to the wastewater for treatment, per each separate
discharge point (if applicable, use separate sheet):
❑ Chlorine ❑ Biocides ❑ Corrosion inhibitors ❑ Algaecide ❑ Other
E None
5) If any box in item (4) above [other than None] was checked, a completed Biocide 101 Form and
manufacturers' information on the additive must be submitted to the following address for approval:
NC DENR / DWQ / Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
6) Is there any type of treatment being provided to the wastewater before discharge (i.e., retention
ponds, settling ponds, etc.)? ❑ Yes E 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. )
7) Discharge Frequency:
a) The discharge is: E Continuous ❑Intermittent ❑ Seasonal*
i) If the discharge is intermittent, describe when the discharge will occur:
ii) *Check the month(s) the discharge occurs: ❑ Jan ❑ Feb ❑ Mar. ❑ Apr ❑ May ❑ Jun ❑
Jul ❑ Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑ Dec.
b) How many days per week is there a discharge? Seven
c) Please check the days discharge occurs: E Sat. E Sun. E Mon. E Tue. E Wed. E Thu. E
Fri.
8) Receiving stream[s]:
a) To what body or bodies of water (creek, stream, river, lake, etc.) does the facility discharge
wastewater? If the site discharges wastewater to a separate storm sewer system (4S), name the
operator of the 4S (e.g. City of Raleigh). Green River
b) Stream Classification: TR,C
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements:
wing information must be included in triplicate [original + 2 copies] with this application or
returned as incomplete.
➢ 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.
➢ Authorization for representatives. If this application will be submitted by a consulting
engineer (or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of
the applicant.
Certification
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: General Manager, Hydro Fleet
(Signature of Applicant) (Date Itnez)
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.)
aeaeasaEasaeasasasasaea
This Notice of Renewal Intent does NOT require a separate fee. .
The permitted facility already pays an annual fee for coverage under NCG500000
asaEaEaEaeasaEaEaEaeaEa
Mail the original and two copies of the entire package to:
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of 3

- =z
c"
.0
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
NOTICE OF RENEWAL INTENT
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoC): NCG500110
(Please print or type) fell,�Y,:,.. •,..., _..
1) Mailing address' of facility owner/operator:
Company Name Duke Energy Carolinas, LLC ,.
0
Owner Name Allen Stowe, Scientist - Water Management
Street Address 526 South Church Street, EC 13K
City Charlotte State NC ZIP Code 28202
Telephone Number(704) 382-4309 Fax: [phone]
Email address jastowe(@duke-eneray.com
* Address to which all permit correspondence should be mailed
2) Location of facility producing discharge:
Facility Name Tuxedo Hydroelectric Station
Facility Contact Randy Horton
Street Address Pot Shoal road
City Flat Rock State NC ZIP Code 28731
County Henderson
Telephone Number(828) 698-2070 Fax:
Email address wrhorton(aduke-enerey.com
3) Description of Discharge:
FEB 1 9 2007
i
;. WATER QUALITY SECTION
ASHEVILLE RErIONAL OFFICE
r --
1.
.L_..n.....�+v..�.�.....r_.u.—.n.:.twe:�v..�......�.w.....nr,,. e. �w.a"gi:..:. �.
a) Is the discharge directly to the receiving stream? ® 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 outfalls (ditches, pipes, channels, etc. that convey wastewater from the
property): Two
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
N Non -contact cooling water
❑ Boiler Blowdown
Outfall(s) #: 001,002
Outfall (s) #:
Page 1 of 3

NCG500000 renewal application
❑ Cooling Tower Blowdown Outfall (s) #:
❑ Condensate Outfall (s) #:
❑ Other Outfall (s) #:
(Please describe "Other")
d) Volume of discharge per each discharge point (in GPD):
#001: 21.600 #002: 21,600 #003: #004
4) Please check the type of chemical [s] added to the wastewater for treatment, per each separate discharge
point (if applicable, use separate sheet):
❑ Chlorine ❑ Biocides ❑ Corrosion inhibitors ❑ Algaecide ❑ Other
® None
5) If any box in item (4) above [other than None] was checked, a completed Biocide 101 Form and
manufacturers' information on the additive must be submitted to the following address for approval:
NC DENR / DWQ / Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
6) Is there any type of treatment being provided to the wastewater before discharge (i.e., retention ponds,
settling ponds, etc.)? ❑ Yes ® 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. )
7) Discharge Frequency:
a) The discharge is: ® Continuous ❑Intermittent ❑ Seasonal*
i) If the discharge is intermittent, describe when the discharge will occur:
ii) *Check the month(s) the discharge occurs: ❑ Jan ❑ Feb ❑ Mar. ❑ Apr ❑ May ❑ Jun ❑ Jul ❑
Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑ Dec.
b) How many days per week is there a discharge? Seven
c) Please check the days discharge occurs: ® Sat. ® Sun. ® Mon. ® Tue. ® Wed. ® Thu. ® Fri.
8) Receiving stream[s]:
a) To what body or bodies of water (creek, stream, river, lake, etc.) does the facility discharge wastewater?
If the site discharges wastewater to a separate storm sewer system (4S), name the operator of the 4S
(e.g. City of Raleigh). Green River
b) Stream Classification: TR.0
Additional Application Requirements:
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements:
The following information must be included in triplicate [original + 2 copies] with this application or
it will be returned as incomplete.
➢ 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.
➢ Authorization for representatives. If this application will be submitted by a consulting
engineer (or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of
the applicant.
Certification
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: General Manager, Hydro Fleet
C5,
(Signature of
North Carolina General Statute 143-215.6 b (i) provides that:
1 29 07
(Date Signed)
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.)
This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000.
asasasasasasasasasasasa
Mail the original and two copies of the entire package to:
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of 3

ZIRCONIA QUADRANGLE
NORTH CAROLINA—SOUTH CAROLINA
7.5 MINUTE SERIES (TOPOGRAPHIC) 203—NW
NW/4 TIOERVILLE 15' OUAORANOLE
5,
I _( 990000 FEET KC.) 82"22
I�c IA
s8=lKonn , " Tuxedo Hydro Station
v--{;\ �—� GOO• t��>-a 0' �. �. o Jm •� ;.}amp - /' •:��j! •�':,�::- 790.
�a o 21 7 ' i�0`.. O • �j-.'/:�- - _ _ 2000
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it
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IBM 202Z
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y Z0• - � i -�: t--�tB •.O ry0\ .�� 00 ,v/— �� � � ,^._ r.i /'~, " 11 / �� ' •e
e\II j ZIZ� .- •' �r—�� J(��1 • : r�OR R OK
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_ \ 1,. �t•1 1 _- .1\� .�"l� .��72 T4: 780
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2200
y.
389
Al
SECTION OF USGS TOPOGRAPHIC
MAP OF THE AREA AROUND
TUXEDO HYDRO STATION
SCALE 1:24000
MlE y1 0 1 "LE
1000 0 1000 2000 3000 4000 6000 6000 7000 FEET
1 KLOMETEK
CONTOUR INTERVAL 20 FEET

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
SURFACE WATER PROTECTION
February 13, 2007
Mr. Allen Stowe
Duke Energy Corporation
Mail Code EC13K
Post Box 1006
Charlotte, North Carolina 28201-1006
Dear Mr. Stowe:
Alan W. Klimek, P.E. Director
Division of Water Quality
Asheville Regional Office
I
L
f
SUBJECT: Compliance Evaluation Inspection
Tuxedo Hydroelectric Plant
Permit No: NCG500110
Henderson County
Enclosed please find a copy of the Compliance Evaluation Inspection form from
the inspection conducted on February 9, 2007. 1 conducted the Compliance Evaluation
Inspection. The facility was found to be in Compliance with permit NCG500110.
Please refer to the enclosed inspection report for additional observations and
comments. If you or your staff have any questions, please call me at [phone].
Sincerely,
00-'L rost
nvironmental Engineer
Enclosure
cc: Steve Hodges, Duke Energy, 573 Duke Power Road, Mooresboro, NC 28114
NPDES Unit -
Central Files
2090 U.S. Highway 70, Swannanoa, NC 28778 Telephone: [phone] Fax: [phone] Customer Service 1 877 623-6748
No 1hCarolina
Xatumlly

United States Environmental Protection Agency
EPA Washington, D.C. 20460 Form Approved.
OMB No. 2040-0057
Water Com liance Ins ection Re Ort Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES
1
yr/mo/day
Inspection Type
Inspector Fac Type
I_I 2 I_1 31 @ii:n5001.1,, 111 121
0" i02/09
117
18I-I
191;I 201 1
Remarks
z1�_I_ I I I I I I I I
I I I I I I I I I I I I
I I I I I
I I I
I I I I I 1
1 1 1 1 1 1 1 1 1 161
Inspection Work Days Facility Self -Monitoring Evaluation Rating
B1
QA
-----
67I 169 70I I
71
72I-t
----- ------------
Reserved ----------- ---
I I
I
73I_1_I I 174
751 I I I I Li
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
Plan-,
L:_: U�J i%I•i U. .�'.'.:
:51
IiLi n�i!1 �.
!I'Sp. '"'
Exit Time/Date
Permit Expiration Date
Roc,. I:^ "3?1
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Name, Address of Responsible OffidallTitle/Phone and Fax Number
;tr ii de _;ct1.'k - Contacted
Duke Elie:-gy Cors;cr-ati.o _ Charlotte : C
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Operations & Maintenance N Records/Re orts
P ■ Self -Monitoring Program
Facility Site Review
Section D: Summary of Find
(See attachment summary)
Name(s) and Signature(s) of Inspector(s)
_1: _ 1;: ost r s
Signature of Management Q A Reviewer
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
additional sheets of narrative and checklists as n
Agency/Office/Phone and Fax Numbers
:5[?'� i'i�%%l b.....-'!C._-'.i :^•Q(i i::X._.?t;Ji
AR.O WQf;, 82-2.?6-4-500/
Agency/Office/Phone and Fax Numbers
Date
Z_ // Zz'>
,?ll3/d -,7-
Date
Page # 1

NPDES yr/mo/day Inspection Type
3I 11 12 I17 18I
CI
(cont.)
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Duke Energy's Tuxedo Hydroelectric Powerhouse consists of a pinstock to the powerhouse, powerhouse
generation equipment, central powerhouse sump and tailrace. The tailrace discharges to Green River. The
plant has permitted discharges of generator thrust bearing cooling water and powerhouse sump discharges.
Mr. Larry Frost performed the inspection. The facility appeared to be operating properly, one turbine was out
of service. There were no un-permitted discharges noted during the inspection.
The purpose of the permit is to protect the receiving stream; therefore, the inspector recommends that
Upstream, Effluent and Downstream sampling points be re-evaluated for this facility. The recommended
Upstream sampling site is the pinstock (the operator has access in the powerhouse that will serve this
purpose), the effluent site from the tailrace and the bridge downstream of the plant, it is recommended that
these sites be established by written policy.
Once the sampling sites are established, then the monitoring requirements and monitoring frequency for
each site should re-evaluated.
The proper reporting of flow from the powerhouse was discussed, during the inspection, Since monitoring
data is not required to be submitted to the State; the inspectors recommend that Duke Energy use common
units of measure for this type industry (examples discussed were, CFS and MGD, however some other unit
may be more appropriate) with regards to flow. If you should have any questions regarding this issue please
contact one of the inspectors.
Finally, a special word of thanks to Mr. Steve Hodges and Mr. Frank Hill for their assistance during the
inspection.
Page # 2

Permit: NCG500110 Owner - Facility: Tuxedo Hydroelectric Plant
Inspection Date: 02/09/2007 Inspection Type: Compliance Evaluation
PPGMtions & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ ❑ ❑ fl
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ❑ ❑ ■
Judge, and other that are applicable?
Comment:
Perini,
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?
■
n
n
n
# Are there any special conditions for the permit?
0
❑
■
0
Is access to the plant site restricted to the general public?
■
p
n
n
Is the inspector granted access to all areas for inspection?
■
❑
n
n
Comment: Permit renewal application was submitted to DWQ on January 29, 2007.
Page # 3

Duke
OFEnergyo
January 29, 2007
Mr. Charles Weaver
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
Duke Energy Corporation
526 South Church St.
Charlotte, NC 28202
Mailing Address:
PO—.0X 1000,... ..._..
Charlotte, -NC 28201.1006 '1
FED
WATER DUALITY `i SECTION
ASI EVILLE REG17!aA,1_ ^mot
Subject: Duke Energy Carolinas, LLC — NPDES Permft,�?,�'p
Renewal of NPDES General Permit - #NC(7t€iQW
Bear Creek Hydroelectric Plant — NCG500124
Bridgewater Hydroelctric Plant — NCG500102
Bryson Hydroelectric Plant — NCG500129
Cedar Cliff Hydroelctric Plant — NCG500125
Cowans Ford Hydroelectric Plant — NCG500139
Lookout Shoals Hydroelectric Plant — NCG500120
Mission Hydroelectric Plant — NCG500128
Mountain Island Hydroelectric Plant — NCG500131
Nantahala Hydroelectric Plant — NCG500136
Oxford Hydroelectric Plant — NCG500119
Rhodhiss Hydroelectric Plant — NCG500108
Tennessee Creek Hydroelectric Plant — NCG500123
Thorpe Hydroelectric Plant — NCG500127
Tuckasegee Hydroelectric Plant — NCG500126
Tuxedo Hydroelectric Plant — NCG500110
Dear Mr. Weaver:
Jul
Duke Energy Carolinas, LLC requests the subject general permit be renewed and reissued. The
above referenced permit expires July 31, 2007. As mandated by North Carolina Administrative Code
15A NCAC 2H.0105 (e), this permit application for renewal is being submitted at least 180 days prior
to expiration of the current permit.
Please find enclosed in triplicate, the Notice of Renewal Intent for each of the hydroelectric facilities
named above.
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
Scientist, Water Management
Attachments
k-c-awl: Mr. Larry Frost — NC DEN Asheville R.O.
www.duke-energy.com

Orr
RCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
NOTICE OF RENEWAL INTENT
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoC): NCG500110
(Please print or type)
1) Mailing address' of facility owner/operator:
Company Name Duke Energy Carolinas, LLC
Owner Name Allen Stowe, Scientist - Water Management
Street Address 526 South Church Street, EC 13K
City Charlotte State NC ZIP Code 28202
Telephone Number(704) 382-4309 Fax: [phone]
Email address iastowe(@duke-energy.com
" Address to which all permit correspondence should be mailed
2) Location of facility producing discharge:
Facility Name Tuxedo Hydroelectric Station
Facility Contact . Randy Horton
Street Address Pot Shoal road
City Flat Rock State NC ZIP Code 28731
County Henderson
Telephone Number(828) 698-2070 Fax: NA
Email address wrhorton(a)duke-energy.com
3) Description of Discharge:
a) Is the discharge directly to the receiving stream? 0 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 outfalls (ditches, pipes, channels, etc, that convey wastewater from the
property): Two
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
® Non -contact cooling water
Outfall(s) #: 001,002
❑ Boiler Blowdown Outfall (s) #:
Page 1 of 3

NCG500000 renewal application
pooling Tower Blowdown Outfall (s) #:
❑ Condensate
❑ Other
Outfall (s) #:
Outfall (s) #:
(Please describe "Other")
d) Volume of discharge per each discharge point (in GPD):
#001: 21,600 #002: 21,600 #003: #004
4) Please check the type of chemical [s] added to the wastewater for treatment, per each separate discharge
point (if applicable, use separate sheet):
❑ Chlorine ❑ Biocides ❑ Corrosion inhibitors ❑ Algaecide ❑ Other
® None
5) If any box in item (4) above [other than None] was checked, a completed Biocide 101 Form and
manufacturers' information on the additive must be submitted to the following address for approval:
NC DENR / DWQ / Environmental Sciences Section
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, NC 27699-1621
6) Is there any type of treatment being provided to the wastewater before discharge (i.e., retention ponds,
settling ponds, etc.)? ❑ Yes ® 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. )
7) Discharge Frequency:
a) The discharge is: ® Continuous ❑Intermittent ❑ Seasonal*
i) If the discharge is intermittent, describe when the discharge will occur:
ii) *Check the month(s) the discharge occurs: ❑ Jan ❑ Feb ❑ Mar. ❑ Apr ❑ May ❑ Jun ❑ Jul ❑
Aug. ❑ Sept. ❑ Oct. ❑ Nov. ❑ Dec.
b) How many days per week is there a discharge? Seven
c) Please check the days discharge occurs: ® Sat. ® Sun. ® Mon. ® Tue. ® Wed. ® Thu. ® Fri.
8) Receiving stream[s]:
a) To what body or bodies of water (creek, stream, river, lake, etc.) does the facility discharge wastewater?
If the site discharges wastewater to a separate storm sewer system (4S), name the operator of the 4S
(e.g. City of Raleigh). Green River
b) Stream Classification: TR.0
Additional Application Requirements:
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements:
The following information must be included in triplicate [original + 2 copies] with this application or
it will be returned as incomplete.
➢ 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.
➢ Authorization for representatives. If this application will be submitted by a consulting
engineer (or engineering firm), include documentation from the Permittee showing that the
consultant submitting the application has been designated an Authorized Representative of
the applicant.
Certification
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: General Manager, Hydro Fleet
C5,
(Signature of
North Carolina General Statute 143-215.6 b (i) provides that:
1 29 07
(Date Signed)
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.)
This Notice of Renewal Intent does NOT require a separate fee.
The permitted facility already pays an annual fee for coverage under NCG500000.
Mail the original and two copies of the entire package to:
Mr. Charles H. Weaver
NC DENR / DWQ / NPDES
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of 3

ZIRCONIA QUADRANGLE
NORTH CAROLINA—SOUTH CAROLINA
7.5 MINUTE SERIES (TOPOGRAPHIC) 203-NW
NW/4 TIGERVILLE 15' QUADRANGLE
5'
990 000 FEET (N, C.) 82. 22-
ll`c;&;; • =, °� �,
,m;>� la .. r ��. Tuxedo
l� 3 ch\ �'i'- es 1Vioun\ �I Hydro Station ,
°° �0.
}amp
21 7 /�p`. o '. /./: %per• - _ _ z000 1.
00. \ i o e.agki
Station i - J !; = -
41
r -�
14
20
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_ � \ � •` ---. ' r : - ' �. � I. '•� �r � lam_ - - -
.. - _ - � to `' _ �'�\ n .___ �� � �� /� `� . a • n _
A�M _ �``- �. .��/ / it �. 202�• \/ :. �1-���(b�
I Wate6y
sm
10
If
C a& Ch N, 0 \ 1 1 \'• "�/ r� �j /-�"• / /� i/ 1 -/
;•�20.:O ry0` 1OD•-T..•J /����y ��.,.� �• 1� 'i' ��. ,
I1'�.�it �• IZ°. _ --�� ��^ • . RS7; �,P _ .•1 \ 2? "- , ! � � �.-..� '��'� olt '-v•-- , is -
�n& 38o
herl
1 a � � • � �'-`\---/ :"i .�_ " '� i\'--� E==' ' �Div ,—�i �\ -_
�.'.�--: — - =; :'. _.. �, ` • •'�\%��• ter=- v -�>> �� 1 .� ��^-
\\ 0 Lake.
•/ ,1 f�--',�.-,�232p_- -- ���• '.. /,� •�'
fi
380
SECTION OF USGS TOPOGRAPHIC
MAP OF THE AREA AROUND
TUXEDO HYDRO STATION
SCALE 1:24000
T I+LE y� 0 I /..•LE
*00 0 KS00 2000 3000 4000 8000 6000 7000 FEET
I NLOVEM
CONTOUR INTERVAL 20 FEET

Facility
Duke Energy Environmental
Contact
Telephone Number
Bear Creek
Marcus Pitts
864 847-3054
Bridgewater
Nob Zalme
704 645-2706
Bryson
Marcus Pitts
864 847-3054
Cedar Cliff
Marcus Pitts
864 847-3054
Mission
Marcus Pitts
864 847-3054
Tennessee Creek
Marcus Pitts
[phone]
Nantahala
Marcus Pitts
864 847-3054
Rhodhiss
Nob Zalme
[phone]
Tuckasee ee
Marcus Pitts
864 847-3054
-Txe__
—,-:Sev"Hod'e
65;--
23-39
.`
Thorpe
Marcus Pitts
864) 847-3054

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
November 15, 2006
Allen Stowe
Duke Energy Corporation
P.O. Box 1006 [EC131Q
Charlotte, NC 28201-1006
William G.-Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
Subject: NPDES Permit NCG500000 renewal -
Certificate of Coverage (CoC) NCG500110
Tuxedo Hydroelectric Plant
Henderson County
Dear Permittee:
The facility listed above is covered under NPDES General Permit NCG500000. NCG500000 expires
on July 31, 2007. Federal (40 CFR 122.41) and North Carolina (15A NCAC 2H.0105(e)) regulations require
that permit renewal applications must be filed at least 180 days prior to expiration of the current permit. If
you have already mailed a renewal request, you may disregard this notice.
To satisfy this requirement, the Division must receive a,renewal request postmarked no later than
February 1, 2007. Failure to request renewal by this date may result in a civil penalty assessment. Larger
penalties may be assessed depending upon the delinquency of the request. This renewal notice is being sent
well in advance of the due date so that you have adequate time to prepare your application.
If any discharge previously covered under NCG500000 will occur after July 31, 2007, the
CoC must be renewed: Discharge of wastewater without a valid permit would violate North Carolina
General Statute 143-215.1; unpermitted discharges of wastewater may be assessed civil penalties of up to
$25,000 per day.
If all discharge has ceased at your facility and you wish to rescind this CoC [or if you have other
questions], contact me at the telephone number or e-mail address listed below.
cc: Central Files
NPDES File
Sincerely,
l
Charles H. Weaver, Jr.
NPDES Unit
E C C J 1
N110
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 L___.. one
512 North Salisbury Street, Raleigh, North Carolina 27604 WATER �?UA n Y S —oft
Phone: [phone],extension511/FAX[phone]/[e-mail] A`= �`=�cr �'� (_-,AAl` g
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper" �` -. vl`

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
William G. Ross Jr., Secretary
Gregory J. Thorpe, Ph.D., Acting Director
11/26/2001
ANGELA GROOMS
TUXEDO HYDROELECTRIC PLANT
13339 HAGERS FERRY RD
HUNTERSVILLE, NC 28078
1••
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIR6NMENTf AND -NATURAL RESOURCES
SEC - 3 2nnl ,
Subject: NPDES Wastewater Permit Cove-r`a-& Renewal
Tuxedo Hydroelectric Plant
COC Number NCG500110
Henderson County
Dear Permittee:
Your facility is currently covered for wastewater discharge under General Permit NCG500000. This permit expires
on July 31, 2002. Division of Water Quality (DWQ) staff is in the process of rewriting this permit with a
scheduled reissue in the summer of 2002. Once the permit is reissued, your facility would be eligible for continued
coverage under the reissued permit.
In order to assure your continued coverage under the general permit, you must apply to the DWQ for renewal of
your permit coverage. To make this renewal process easier, we are informing you in advance that your permit
coverage will be expiring. Enclosed you will find a general permit coverage renewal application form. This
will serve as your application for renewal of your permit coverage. The application must be completed and
returned with the required information by February 01, 200.2 in order to assure continued coverage under the
general permit. There is no renewal fee associated with this process. Your facility will be invoiced for the annual
permit fee at a later date.
Failure to request renewal within this time period may result in a civil assessment of at least $250.00. Larger
penalties may be assessed depending on the delinquency of the request. Discharge of wastewater from your facility
without coverage under a valid wastewater NPDES permit would constitute a violation of NCGS 143-215.1 and
could result in assessments of civil penalties of up to $10,000 per day.
If the subject wastewater discharge to waters of the state has been terminated, please complete the enclosed
rescission request form. Mailing instructions are listed on the bottom of the form. You will be notified when the
rescission process has been completed.
If you have any questions regarding the permit coverage renewal procedures please contact the Asheville Regional
Office at 828-251-6208 or Delonda Alexander of the Central Office Stormwater Unit at [phone], ext. 584
Sincerely,
&, . -S_,7�4_
Bradley Bennett, Supervisor
Stormwater and General Permits Unit
cc: Central Files
Stormwater and General Permits Unit Files
Asheville Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

May 11, 2006
Ms. Coleen Sullins
Permits and Engineering Unit
North Carolina Department of Environmental,
Health and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
-rZ;-;e,',P 4)
UKE ENERGY CORPORATION
400 South Tryon St.
Charlotte, NC 28285
Mailing Address:
PO Box 1007.
Charlotte, NC 28201-1007
.r
f � � i?d�iA 7� at vy�
i c�
Re: Delegation of Authority - Signatures on Reports and Requested Information
Duke Energy NPDES Permitted Stations
Dear Ms. Sullins:
Federal Regulation 40 CFR 122.22, as well as Part II of Duke Energy's NPDES permits, specifies
that all reports required by NPDES permits and other information requested by the permit issuing
authority shall be signed by a principal executive officer of at least the level of Vice President or a
duly authorized representative. I hereby authorize the Site Production Manager the authority to
sign all reports and requested information related to the permits specified in the attached list
If you have questions or need additional information, you may contact Allen Stowe at 704-382-
4309.
Sincerely,
M' hell C. Grig s
ice President
Environment, Health and Safety
/phs
Attachment
xc: Rex Gleason, NCDENR, Mooresville, NC
Steve Mauney, NCDENR, Winston-Salem, NC
David Goodrich, NCDENR, Raleigh,. NC
Est Westall, NCDENR, Asheville, NC
www. duke -energy. com

Permits Currently Held:
Allen Steam Station'- NC0004979
Belews Creek Steam Station - NC0024406
Belews Creek Steam Station - WO0005873
Belews Creek Steam Station Flyash Landfill Permit #85-03
Buck Steam Station - NC0004774
Cliffside Steam Station - NC0005088
Dan River Steam Station - NC0003468
Lincoln Combustion Turbine Station - NC0080781
Marshall Steam Station - NC0004987
Marshall Steam Station Flyash Landfill Permit #18-04
Riverbend Steam Station - NC0004961
Bridgewater Hydro Station - NCG500102
Cowans Ford Hydro Station - NCG500139
Lookout Shoals Hydro Station - NCG500120
Mountain Island Hydro Station - NCG500131
Oxford Hydro Station - NCG500119
Rhodhiss Hydro Station - NCG500108
Tuxedo Hydro Station - NCG500110
Bear Creek Hydro Station — NCG500124
Bryson Hydro Station — NCG500129
Cedar Cliff Hydro Station — NCG500125
Mission Hydro Station — NCG500128
Nantahala Hydro Station — NCG500136
Tennessee Creek Hydro Station — NCG500123
Thorpe Hydro Station — NCG500127
Tuckaseegee Hydro Station — NCG500126

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
David F. Mitchell
Duke Power Company
13339 Hagers Ferry Road
Huntersville , NC 28078
Dear Permittee:
.A
IDEHNF1
July 24,1997
Subject: Certificate of Coverage No. NCG500110
Renewal of General Permit
Tuxedo Hydro Plant
Henderson County
In accordance with your application for renewal of the subject Certificate of Coverage, the Division is forwarding
the enclosed General Permit. This renewal is valid until July 31, 2002. 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 December 6, 1983. If any parts, measurement
frequencies or sampling requirements contained iri this 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, this certificate
of coverage shall be final and binding.
The Certificate of Coverage for your facility is not transferable except after notice to the Division. Use the enclosed
Permit Name/Ownership Change form to notify the Division if you sell or otherwise transfer ownership of the
subject facility. The Division may require modification or revocation and reissuance of the Certificate of Coverage.
If your facility ceases discharge of wastewater before the expiration date of this permit, contact the Regional
Office listed below at [phone]. Once discharge from your facility has ceased, this permit may be rescinded.
This permit does not affect the legal requirements to obtain other permits which may be required'by the Division of
Water Quality, 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 the NPDES Group at the address below.
cc: Central Files
Asheville _Regional Officet
NPDES File
Facility Assessment Unit
Sincerely,
A. Preston Howard, Jr., P.E.
JUL
P.O. Box 29535, Raleigh, North Carolina 27626-0535 [phone] FAX [phone] p&[e-mail]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG500000
CERTIFICATE OF COVERAGE NO. NCG500110
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE, EXEMPT STORMWATER, COOLING WATERS ASSOCIATED WITH
HYDROELECTRIC OPERATIONS, AND SIMILIAR WASTEWATERS 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,
Duke Power Company
is hereby authorized to discharge
cooling water and other waters associated with hydroelectric operations
from a facility located at
Tuicedo Hydro Plant
NCSR 1836
Flat Rock
Henderson County
to receiving waters designated as subbasin 30803 in the Broad River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III and IV of General Permit No. NCG500000 as attached.
This certificate of coverage shall become effective August 1, 1997.
This certificate of coverage shall remain in effect for the duration of the General Permit.
Signed this day July 24,1997.
7,/ ,� /A. Preston Howard, Jr., P.E., Director
F Y Division of Water Quality
By Authority of the Environmental Management Commission

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
Timothy Huffman
13339 Hagers Ferry Road
Huntersville, NC 28078
Dear Mr. Huffman:
ALT4
C)EHNF =1
May 25, 1993
MAY 2 7 1993 .
� l
Subject: General Permit No. NCG500000
Duke Power Company
COC NCG500110
Henderson County
In accordance with your application for discharge permit received on April 16, 1993, we are forwarding
herewith the subject certificate of coverage to discharge under the subject state - NPDES general permit.
Issuance of this certificate of coverage supercedes the individual NPDES permit No. NC0004502. 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 US Environmental Protection agency dated December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in this 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, this 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 Environmental Management. The Division of Environmental Management 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 Environmental Management 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 Ms. Susan Robson at telephone number
919/733-5083.
Sincerely,
Original Signed By
Coleen K Sullins
A. Preston Howard, 7r.
Director
cc:
evil_ g'onal gffice
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper
NAI

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
GENERAL PERMIT NO. NCG500000
CERTIFICATE OF COVERAGE No. NCG500110
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER BLOWDOWN,
CONDENSATE AND SIMILIAR WASTEWATERS 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,
Duke Power Company
is hereby authorized to continue operation of a treatment system for the generation of non -contact cooling water from
2 generators with the discharge of wastewater from a facility located at
NCSR 1836
on the Green River
Henderson County
to receiving waters designated as the Green River in the Broad River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III
and IV of General Permit No. NCG500000 as attached.
This certificate of coverage shall become effective May 25, 1993
This Certificate of Coverage shall; remain in effect for the duration of the General Permit.
Signed this day May 25, 1993
original Si ned By
S
roleen K
A. Preston Howard, Jr., P.E.,Director
Division of Environmental Management
By Authority of the Environmental Management Commission

UUAIJHANGLE
NORTH CAROLINA-SO -I CAROLINA 0ha���
7.5 MINUTE SERIES (TOP(,�_.;APHIC) 203-NW
NW/4 TIGERVILLE 15' QUADRANGLE rxLajo \0�
990000 FEET (N. C.) Hy 82'3 0"
�\�ri - �. '\ ! 11 , .�_.✓,'; � ���� . ? 'I `\�'�10; : Lam' '' /'• �1111 - °f�
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1% �•�yi` t� `, 1 �9+ l/ j/ �� 1�� . I 560 000 FEET
:• ��` (� \:J) I��; ; �(�__ Igo - ncLj
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U

SOC PRIORITY )JECT:
IF YES, SOC NUMBER
TO: PERMITS AND ENGINEERING UNIT
WATER QUALITY SECTION
ATTENTION: Susan Robson
DATE: May 12, 1993
No
NO
NPDES STAFF REPORT AND RECOMMENDATION
COUNTY Henderson
PERMIT NUMBER NC0004502
PART I - GENERAL INFORMMATION
1. Facility and Address: Duke Power Co. - Tuxedo Hydro Facility
13339 Hagers Ferry Road
Huntersville, N. C. 28078
Route 1, Box 104-D
Flat Rock, N. C. 28731
2.
3.
as
Date of Investigation: May 7, 1993
Report Prepared By: Paul White
Persons Contacted and Telephone Number: Larry Harden
704-697-3506
5.. Directions to Site: The facility is located on the Green River 1
mile downstream of the Highway 176 crossing. Follow SR 1836 east
.from Highway 176 for about 0.8 miles to Green River and
powerhouse.
6. Discharge Point(s), List for all discharge points:
Latitude: 350 14' 407, Longitude: 820 23' 25"
Attach a USGS map extract and indicate treatment facility site and
discharge point on map.
U.S.G.S. Quad No. G9NW U.S.G.S. Quad Name Zirconia
7. Site size and expansion area consistent with application? n/a
Yes No If No, explain:
Page 1

Topography (relationship to flood plain included): The powerhouse
is located at the bottom of the gorge.
Location of nearest dwelling: >200 feet
Receiving stream or affected surface waters: Green River
a. Classification: C-Trout
b. River Basin and Subbasin No.: Broad River 03-08-03
C. Describe receiving stream features and pertinent downstream
uses: Narrow steep gorge with swift current.` An 0.8 mile
,section, 4 miles downstream of the power plant has a drop of
320 feet. Fish and wildlife propagation, fishing, canoeing,
and kayaking. Predominance of canoeing and kayaking is
downstream of the steepest section.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
U
2.
a. Volume of wastewater to be permitted 0.0216 mgd each for two
discharge points. , MGD (Ultimate Design Capacity)
b. What is the current permitted capacity of the Wastewater
Treatment facility? Flow is not limited.
C. Actual treatment capacity of the current facility (current
design capacity n/a
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two years:
none
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: none
f. Please provide a description of proposed wastewater treatment
facilities: none
g. Possible toxic impacts to surface waters: none
h. Pretreatment Program (POTWs only): n/a
in development approved
should be required not needed
Residuals handling and utilization/disposal scheme: none
a. If residuals are being land applied, please specify DEM
Permit Number ,
Residuals Contractor
Telephone Number -
b. Residuals stabilization: PSRP PFRP OTHER
Page 2

c. Landfill:
d. Other disposal/utilization scheme (Specify):
3. Treatment plant classification (attach completed rating sheet):
n/a
4. SIC Codes(s): 4911
Wastewater Code(s) of actual wastewater, not particular facilities
i.e., non -contact cooling water discharge from a metal plating
company would be 141 not 56.
Primary 14 Secondary
Main Treatment Unit Code: n/a
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds
or are any public monies involved. (municipals only)? no
2. Special monitoring or limitations (including toxicity) requests:
none
3. Important SOC, .JOC, or Compliance Schedule dates: (Please
indicate) none
Date
Submission of Plans and Specifications
Begin Construction
Complete Construction
4. Alternative Analysis Evaluation: Has the facility evaluated all
of the non -discharge options available. Please provide regional
perspective for each option evaluated.
Spray Irrigation: Not feasible.
Connection to Regional Sewer System: None available.
Subsurface: Not feasible.
Other disposal options: none
5. Other Special Items: none
Page 3

PART IV - EVALUATION AND RECOMMENDATIONS
The permittee uses cooling water_' for two generators. Coverage is
requested under General Permit NCG5000000 for two non -contact
cooling water outfalls. The General Permit is appropriate for
this discharge. It is recommended that a certificate of coverage
replace existing Permit Number NC0004502.
Signature of. Report Preparer
Water Quality Regional Supervisor
Date
Page 4

M
1
Z 000 S�
ti
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NORTH CAROLINA—SOUTH CAROLINA a5�od
7.5 MINUTE SERIES (TOPOGRAPHIC) 203—NW
NW/4 TIGERVILLE 15' QUADRANGLE
5' l-IENDERSONVILLE (JUNC. U.S. 25) 5.4 MI. 990000 FEET (N. C.) 82'�2'30--------------
IV
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APR
, •I
State of North Carolina
epartment of Environment, Health and Natural Resot
Division of Environmental Management - "
512 North Salisbury Street- Raleigh, North Carolina 27604
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
Timothy Huffman, PE
Duke Power Company
13339 Hagers Ferry Road
Huntersville, NC 28078-792.9
Dear Mr. Huffman :
A. Preston Howard, Jr., P.E.
Director
April 29, 1993
Subject: NPDES Permit Application
NPDES Permit No.NC0004502
Tuxedo Hydroelectric Facility
Henderson County
This is to acknowledge receipt of the following documents on April 16, 1993:
Application Form
Engineering Proposal (for proposed control facilities),
Request for permit renewal,
Application Processing Fee of $400.00,
Engineering Economics Alternatives Analysis,
Local Government Signoff,
Source Reduction and Recycling,
Interbasin Transfer,
Other Request for coverage under a general permit is being considered.,
The items checked below are needed before review can begin:
Application Form ,
Engineering pr.op'bsal (see attachment),
Application Processing Fee of
Delegation of Authority -(see attached)
Biocide Sheet (see attached)
Engineering Economics Alternatives.Analysis,
Local Government Signoff,
Source Reduction and Recycling,
Interbasin Transfer,
-Other
Pollution Prevention Pays.
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone]
An Equal Opportunity Affirmative Action Employer
i'ft/

e application is. not.made complete within thirty (30) days, it will be
urned to you and may be resubmitted when complete.
This application has-been assigned to Susan Robson
(919/733-.5083) of.our Permits Unit for review. You will e advised o any
comments recommendations, questions or other information necessary for the
review of the application.
I am, by copy of this letter, requesting that our Regional Office
Supervisor prepare a staff,report.and recommendations regarding this
discharge. If you have any questions regarding this applications,
please contact the review person listed above.
Sincerely,
Coleen H. Sullins, P.E.
-CC: Asheville Regional Office

I;3
e 000q5-61z`
'0 f(.00•o-6
/17100
State of North Carolina
Department of Environment, Health and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor A. Preston Howard. Jr., P.E.
William W. Cobey, Jr., Secretary Acting Director
NOTICE OF INTENT
National Pollutant DischaW Elimination System
Application for Coverage under General Permit NCG500000; Non -contact cooling water, boiler blowdown,
cooling tower blowdown, condensate, and similar point source discharges.
1. Name, Address, :=timii, and telephone number of facility requesting Permit.
A. Official Name: Duke Power Co. - Tuxedo Hydro Station
B. Mailing Address: c o Water ProtectIon
(1)StreexAddress; 13339 HaqerS Ferry
(2)City; Huntersvl l l e ..
(3)State; N _ C
(4)ZiP; 2 807 R- 7 92 9
C. LocationC(m delineating M f c l g n h u r
(Attach map g general facility location)
(1)Street.Address; NCSR 1836, Rt....1 Box 1-04-D
(2)City; Flat Rock
(3)State; N . G,
(4)Cotinty; NPndprgnn
D. Telephone Number, ( j 04) 6 97 35 06
2. Facility Contact;
A. Name; I Mike Bradshaw
B. Title; : O oera t r:.
C. Company Name; 7 04 Pw e r
D. Phone Number, ( ) _ _ _
3. Application type (check appropriate selection):
A. New or Proposed; -
Existing; H prrriousl, --a—milted 'pmvide rxe-- t n••-•�b�-
C. Modification; x and issue date
(Describe the nature of the modification): Conversion of coverage from individual-NPQcc
permit # NC0004502 to G neral Permit Ncr_500000
4. Description of discharge
A. Please state the number of separate discharge points.
1,[ ] ; 2.K] ; 3,[ ] ; 4,[ ] ; _,[ ].
B. Please describe the amount of wastewater being discharged per each separate discharge point: 1. 21 , 600*
gallons per day (gpd) 2� gpd)003: (gpd) 4• (gpd)
*Total possible maximum, based on 15 gpm flow when unit is operating.
Page 1

C. Check the duration and freq y of the discharge, per each separate discharg int:
1. Continuous:_
Intermittent (please describe):_ Only when unit operates .excepting seepage.
3. Seasonal (check month(s) the discharge occurs): January [ ]; February [ ]; March [ ]; April [ ],
May [ l;iane [ l; July [ ]; ,August [ ]; September [ ]; October [ ];November [ ]; December [ ).
4. How many days -per week is there a discharge?(clrack the days the discharge occurs)
Monday [ ], Tuesday [ ], Wednesday [ ], Thursday [ ],Friday [ 1. Saturday [ ], Sunday [ ].
Discharge can occur any day.
5. How much of the volume discharged is treated? (state in percent)
D. What type of wastewater is discharged, per separate discharge point. (place check next to correct type):
1. Non -contact cooling water, X
2. Boiler blowdown;
3. Cooling tower blowdown;
4. Condensate;
5. Other(pleasedescribe); x M sc. seepage thru structure
Please list any known pollutants that are present in the discharge, per each separate discharge point (if
applicable):
E. Please describe the type of process the cooling water is being discharged from, per separate discharge point
(i.e. compressor, boiler blowdown, cooling tower blowdown, air conditioning unit, etc.):
Once through, non -contact bearing cooling.
F. Please check the type of chemical added to the wastewater for treatment or other, per separate discharge
point:.
1. Biocides;
2. Corrosion inhibitors;
3. Chlorine;
4. Algae control;
5. Other(please describe);
6. None; x
If 1,2,3,4, or 5 was checked, please state the name and manufacturer of the chemical additive. Also include
a completed Biocide 101 form, and manufacturers' information on the additive with the application for the
Division's review.
G. Is there any type of treatment being provided to the wastewater before discharge (i.e. retention ponds,
settling ponds, etc.); if yes, please describe. Give design specifics (i.e. design volume, retention time,
surface area, etc.). Existing treatment facilities should be described in detail and design criteria or
operational data should be provided(including calculations) to ensure that the facility -can comply with
requirements of the General Permit.
NOTE: Construction of any wastewater treatment facilities require submission of three (3) sets of plans and
specifications along with their application. Design of treatment facilities must comply with requirement
15A NCAC 2H .0138. If construction applies to the discharge, include the three sets of plans and
specifications with the application.
5. What is the nature of the business applying for this permit? Public Utility, Electrical Power
Generation Facility
6. Name of receiving water. Green River Classification: C T r .
(Attach a USGS topographical map with all discharge point(s) clearly marked)
Page 2

Is the discharge directly to the rece ' water? (Y.N)Y
If no, state specifically the discharge point. Mark clearly the pathway to the potential receiving waters on the
�. site map. (This includes tracing the pathway of the storm sewer to its discharge point, if a storm sewer is the
only viable means of discharge.)
8. Please address possible non -discharge alteratives for the following options:
A. Connection to a Regional Sewer Collection System; Not available
B. Subsurface Disposal; Too much flow
C. Spray Irrigation; Not justifiable, water carries no pollutants nor any detectable
thermal gradient.
9. 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.
Printed Name of Person Signing
Title
Date Application Signed
Signature of Applicant
M.D. McIntosh
V.P., Fossil & Hydro Production
NORTH CAROLINA GENERAL STATUTE 143-215.6B (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 $10,000, 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 $10,000 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 $400.00 made payable to the North Carolina.
Department of Environment, Health, and Natural Resources. Mail three (3) copies of entire package to:
Division of Environmental Management
NPDES Permits Group
Post Office Box 29535
Raleigh, North Carolina 27626-0535
Page 3

ZIF'— )NIA QUADRANGLE
' NORTH ROLINA—SOUTH CAROLINA
7.5 MINUTE SERIES (TOPOGRAPHIC) 203—NW
NW/4 TIGERVILLE 15' QUADRANGLE —_x0
lfydro 82°22'-.
_ 5' _ - 990000 FEET (N. C.) q,
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1
February 19, 1993
_l
FE3 2 3 1993L 11
J.S. CARTER
DUKE POWER CO., TUXEDO HYDRO
13339 HAGERS FERRY ROAD
HUNTERSVILLE,, NC 28078
Subject: NPDES PERMIT NO. NC0004502
HENDERSON COUNTY
Dear Permittee:
The subject permit issued on 12/21/88 expires on 11/30/93. North
Carolina General Statute (NCGS) 143-215.1(c) requires that an
application for permit renewal be filed at least 180 days prior to the
expiration date. As of the date of this letter, the Division of
Environmental Management had not received an application for renewal.
If operation of a discharge or waste treatment facility is to occur
after the permit's expiration date, or if continuation of the permit is
desired, it must not be allowed to expire. A renewal request must be
submitted no later than 180 days prior to the permit's expiration date.
Operation of the waste treatment works or continuation of a discharge
after the expiration date would constitute a violation of NCGS 143-215.1
and could result in assessment of civil penalties of up to $10,000 per
day. If continuation of the permit is desired, failure to request
renewal at least 180 days prior to expiration will result in a civil
assessment of at least $250.00; larger penalties may be assessed
depending upon the delinquency of the request.
A renewal application shall consist of the following information:
1. A letter requesting the renewal.
2. The completed application form (copy attached), signed and
submitted in triplicate, referenced in Title 15 of North Carolina
Administrative Code (15A NCAC) Subchapter 2H .0105(a).
3. A processing fee (see attached schedule) in accordance with 15A
NCAC 2H .0105(b). The application processing fee is based on the
design or permitted flow, whichever is appropriate, listed in the
first categories of facilities.
4. Primary industries listed in Appendix A of Title 40 of the
Code of Federal Regulations, Part 122 shall also submit a
priority pollutant analysis in accordance with Part 122.21.

5. Facilities which have not been constructed within the last
permit cycle and are therefore, considered "new" facilities,
shall also submit an Engineering Alternatives Analysis,
referenced in 15A NCAC Subchapter 2H .0103 and Subchapter
2B ,0201(c).
6. If the facility covered by this permit contains some type of
treatment works, a narrative description of the sludge management
plan must be submitted with the application for'the renewal.
In addition to penalities referenced above, a permit renewal
request received after the expiration date will be considered as
a new application and will require the higher application fee.
15A NCAC 2H .0105(b)(2) requires payment of an annual
Administrative and Compliance Monitoring fee for most permitted
facilities. You will be billed separately for that fee (if
applicable), after your permit is approved.
The letter requesting renewal, the completed Permit application,
and appropriate fee should be sent to:
Permits and Engineering Unit
Division of Environmental Management
Post Office Box 29535
Raleigh, North Carolina 27626-0535
The check should be made payable to the North Carolina Department of
Environment, Health, and Natural Resources which may be abbreviated as
DEHNR.
If there are questions or a need for additional information
regarding the permit renewal procedure, please contact me or any
individual in the NPDES Group at telephone number [phone].
Sincerely,
Original Slgc! By
C®leen R Sulfurs
Coleen Sullins, P.E.
Supervisor, NPDES Permits Group
cc: rfAgIlevt lle Regxo aabl�OW-1ce
Permits and Engineering Unit
Central Files

State of North Carolina
Department of Environment, Health, and Natural Resources
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor March 26, 1990
George T. Everett, Ph.D.
William W. Cobey, Jr., Secretary Director
CERTIFIED MAIL R E C E� V ~ D
RETURN RECEIPT REQUESTED Water Quality `)c 'tiCOA
E.N. HEDGEPETH
DUKE POWER CO., TUXEDO HYDRO MAR 2 B 1990
RT.I,BOX 104-D
FLAT ROCK, NC 28731
Asheville �e2 icn^i;G fie
SUBJECT: NOTICE OF VIOLATION AND REVOCATION FOR NON-PAYMENT Asheville, [10rzh Carolina
NPDES PERMIT NO. NC0004502
DUKE POWER CO., TUXEDO HYDRO
HENDERSON COUNTY
Dear Permittee:
Payme?rt of the required annual administering and compliance monitoring fee
of $225.00 f.r this year has not been received for the subject permit. This
fee is required by Title 15 North Carolina Administrative Code 2H .0105,
under the authority of North Carolina General Statutes 143-215.3(a)(1), (la)
and (lb). Because this fee was not fully paid within 30 days after being
billed, this letter initiates action to revoke the subject permit, pursuant to
15 NCAC 211 .0105 (b)(2)(k)(4), and G.S. 143-215.1(b)(3).
Effective 60 days from receipt of this notice, subject permit is hereby
revoked unless the required Annual Administering and Compliance Monitoring Fee
is received within that time. Your payment should be sent to:
N.C. Department of Environment, Health, and Natural Resources
Division of Environmental Management
Budget Office
P.O. Box 27687
Raleigh, NC 27611-7687
Discharges without a permit are subject to the enforcement authority of the
Division of Envirommnental Management.
PbHution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]

you are dissatisfied with this decision, you have the right to request
istrative hearing within thirty (30) days following receipt of this
identifying the specific issues to be contended. 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, Post Office Drawer 11666, Raleigh, North Carolina, 27604. Unless
such request for hearing is made or payment is received, revocation shall be
final and binding. If you have any questions, please contact:
Mr. Roy Davis, Asheville Regional Supervisor, [phone].
Sincerely,
George T. Everett,
Director
cc: Supervisor, Water Quality Permits and Engineering Unit
Asheville Regional Office
County Health Department

State of North Carolina
Department of Natural resources and Community Development
Asheville Regional Office
James G. Martin, Governor David R. Spain
S. Thomas Rhodes, Secretary Regional Manager
February 22, 1989
Mr. T. F. Wyke, Chief Engineer
Engineering Support Division
Duke Power Company
Post Office Box 33189
Charlotte, North Carolina 28242
Subject: Sediment Removal Project
Green River Duke Power Company
Polk County
Dear Mr. Wyke:
:I wish to thank you for your February 10, 1989, letter
in which you inform me of the progress of the Green River
sediment removal project. We look forward to "teceipt of the
fish and macroinvertebrate studies later this ;dear. Please
express my appreciation to other involved Duke officials of
the Company's response to the Tuxedo Hydro Station penstock
failure.
Sincerely,
Ann B. Orr
Regional Manager
ABO:RMD:ls
F
xc: Roy M. Davis ✓
Richard Phillips
Jim Borrawa
Interchange Building, 59 Woodfin Place, P.O. Box 370. Asheville, N.C. 28802-0370 ® Telephone 704-251 —6206

Duke Power Company
P. 0. Box 33189
Charlotte, NC 28242
DUKEPOVif R
February 10, 1989,
Ms. Ann B. Orr, Regional Director
Asheville Regional Office
North Carolina Department of Natural Resources
and Community Development
59 Woodfirr Place
P. 0. Box 370
Asheville, North Carolina 28802
Re: Tuxedo Hydro Station
File No: GAH-0308
Dear Ms, Orr:
( 704).Y73-4011
:... LL... � I V
8 1989
Abm I'll STRATI 0R1
t.e_E n.
This letter is an update to our June 27, 1988 letter to
Mr. Spain. The total volume of sediment removed from the river
since the slide occurred is an estimated 4,400 cubic yards.
The one-year field study of the impact of the penstock failure at
Tuxedo Hydro on the downstream fish and macroinvertebrate -
communities was completed at the end of September, 1988. These
data will be summarized and reported to the North Carolina l
Department of Natural Resources and Community Development=and the
North Carolina Wildlife Resources Commission QinoMay, 1989.
Very truly yours,
T. F. Wyke, Chief Engineer
Engineering Support Division
i
By: R. Hendricks
Engineering Manager
GAG/kmp:164
cc: Central Records

'F.O. BOX 33189
DUKE PO` 7ER COMPANY
GENI11?A1, OFFICES
422SOUTH CHURCH STREET
N. C. 28242
k
%
TELEPHONE: AREA 704
373.4011
October 3, 1988 RECEIVED
OCT 41988
PERMITS &
Mr. Arthur Mouberry, Supervisor Ef�G��UttKIIVG
Permits and Engineering
Division of Environmental Management
North Carolina Department of Natural Resources
and Community Development
P. O. Box 27687
Raleigh, North Carolina 27611-7687
Re: Tuxedo Hydro Station
NPDES Permit No: NC0004502
File No: GAH-0207
Dear Mr. Mouberry:
This is to certify that no biocides are being used in the
transformer cooling water discharge at Tuxedo Hydro Station.
If any additional information is needed, please call Bob Waldrop
at [phone].
Yours truly,
S. B. Hager, Chief Engineer
Civil/Environmental Division
By: R. J. Waldrop
Design Engineer I
RJW/kmp:RJW186
cc: T. F. Talbert
Central Records
- RECEIVED
Water Quala, f Section
OCT 6 - 1988
Asheville Regional Office
Asheville, North Carolina

we
Date September 29, 1988
NPDES=STAFF REPORT AND RECOMMENDATIONS
County: Henderson
NPDES Permit No.N00004502
PART I - GENERAL INFORMATION
1. Facility and Address: Duke Power Company
Tuxedo Hydro Station
Rt. Box 104-D
Flat -Rock, North Carolina 28731
2® Date of Investigation:
3. Report Prepared By: Gary T. Tweed, P.E
4. Persons Contacted and Telephone Number: E.N. Hedgepeth
704/583-0314
5. Directions to Site: The existing facility is located on the
Green River downstream of Lake Summit.
6. Discharge Point - Latitude: 35-14-40
1 Longitude: 82-23-20
Attached a USGS Map Extract and indicate treatment plant site and
discharge point on map.
:USGS Quad No. or USGS Quad Name Zirconia
7. ;Size (land available for expansion and upgrading): Several Acres
8. Topography (relationship to flood plain included): Flat to
rolling
9. Location of nearest dwelling: Greater Than 100 Feet
10. Receiving stream or -affected surface waters: Green River
a. Classifications: Class C-Trout 09
b. River Basin and Subbasin No. 03-08-3-0--
cm Describe receiving stream features and pertinent downstream
uses: fish and wildlife propagation and fishing.

PART IIDESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. -.Type of wastewater: 100%,Cooling % Domestic
% Industrial
a. Volume of Wastewater: 0.200 MGD
b. Types and quantities of industrial wastewater: N/A
C. Prevalent toxic constituents in wastewater:
d. Pretreatment Program (POTWs only)
in development approved
should be required not needed
2. 'Production rates (industrial discharges only) in pounds
a. highest month in the last 12 months
b. highest year in last 5 years
3. Description -of industrial process (for industries only) and
applicable CFR Part and Subpart:
4. Type of treatment (specify whether proposed or exiting): It is
proposed to continue the discharge of once through noncontact
cooling water.
5. Sludge handling and disposal scheme: N/A
6. Treatment plant classification: Not classified
7. SIC Code(s) 4931
Wastewater Code(s) 14

PART.III - OTHER PERTINENT INFORMATION
1. Is this facility being.constructed with Construction Grants Funds
(municipals only)? -No
2. Special monitoring requests:
3. Additional effluent limits requests:
4. Other:
PART IV - EVALUATION AND RECOMMENDATIONS
Duke Power Company has requested renewal of NPDES Permit No.
NC0004502 for the continued discharge of once through noncontact
cooling water at the Company's Tuxedo Hydro Station on the Green
River. Past -operation of the faciility has been satisfactory. It is
recommended that the permit be issue with no monitoring
It is recommended that the permit be submitted to public notice.
Sig at of Report Preparer
ater Quality Regional Supervisor

Lry\
ZIRCONIA C DRANGLE
t� 1a
° NORTH CAROLINA—SOUTH CAROLINA �h0�
7.5 MINUTE SERIES (TOPOGRAPHIC) 203-NW\E�`��.•
^ Nw%a TIGERVILLE IS QUADRANGLE
25' 990000 FEET (N.C.) 62°22'30"
�. c. 3
'� = �/ /.Y�_ ,i•'�,. ij 'P `J° 1`JI 39
woo
\ a~ 'q11�'✓rep=�/40
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-- _ ... .... _ . __ .- :__.Y.._--.�:::-..�_.__.,—.._._-�....._�._-_�..—..,__.._.41..::;.:.v.:.-� _._-9®: _ _---. -. _'+•--,: r>r.,� «swami

V
H
F CE1 OngED
ti}iaer Quality Section
SEP 2 8 1988
State of North Carolina Asheville Regional Office
Asheville, North Carolina
Department, of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street s Raleigh, North Carolina 27611
James G. Martin, Governor
S. Thomas Rhodes, Secretary
S
R. Paul 'Wilms
Director
Subject: NPDES Permit Application.
NPDES Permit No. NC00 >`s'f,'" "'�•.
N Count
Dear
This is to acknowledge receipt of the following documents on,�, 6�
Application Form,
Engineering Proposal (for proposed control facilities),
Request for permit renewal,
. ` Application Processing Fee of
Other
The items checked below are needed before review can begin:
Application form (Copy enclosed),
Engineering Proposal 7See Attachment),
Application Processing Fee of $ ,
Other Cy
If the application is not made complete within thirty (30) days, it will
be returned to you and may be resubmitted when complete.
This application has been assigned to
(919/733-5083) of our Permits Unit for review. You will be advised of
any comments recommendations, questions or other information necessary
for the review of the application.
I am, by copy of this. letter, requesting that our Regional Office
Supervisor prepare a staff report and recommendations regarding this
discharge. If you have any questions regarding this application, please
contact the review person listed above.
,Sincerely,
�lArthur Mouberry, P.E.
Supervisor, Permits and Engineering
�j le L) Pollution Prevention Pays
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

a
NORTH CAROLINA DEPT. OF NATURAL RESOURCES AND COMnuNITY DEVELOPMENT
DIVISION OF ENVIRONMENTAL MANAGEMENT, P.O. BOX 27687, RALEIGH, NC 27611
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
APPLICATION FOR PERMIT TO DISCHARGE - SHORT FORM C FOR
AGENCY
USE
To be filed only by persons engaged in manufacturing and mining
Do not attempt to complete this form before reading accompanying instructions
Please print or type
APPLICATION NUMBER
Go
10O
So
DATE RECEIVED
YEAR M0. DAY
3/c/-
1. Name, address, location, and telephone number of facility producing discharge
A. Name Tuxedo Hydro Station
B. Mailing address
1. Street address Rt. 1, Box 104-D
2. City Flat Rock 3. State N.C.
4. County Henderson 5 ZIP 28731
C. Location:
1. Street NCSR 1836
2. City Flat Rock 3. County Henderson
4. State N.C.
D. Telephone No., 704 583-0314
Area
Code
2. SIC M
(Leave blank)
3. Number of employees 5
If all your waste is discharged into a publicly owned waste treatment facility
and to the best of your knowledge you are not required to obtain a discharge
permit, proceed to item 4. Otherwise proceed directly to item 5.
4. If you meet the condition stated above, check here ❑ and supply the info rtnation
asked for below. After completing these items, please complete the date, title,
and signature blocks below and return this form to the proper reviewing office
without completing the remainder of the form.
A. Name of organization responsible for receiving waste
8, Facility receiving waste:
1. Name
2. Street address
3. City 4. County
5. State 6, ZIP
5. EXPrincipal product, ❑raw material (Check one)— Electrical Energy
'6. Principal process Hydroelectric Power Generation
7. Maximum amount of principal product produced or raw material consumed per (Check one)
Amount
Basis
1-99
(1)
100-199
(2)
200-499
(3)
500-999
(4)
1000-
4999
(5)
5000-
9999
(6)
10,000-
49,999
(7)
50,000
or more
(8)
A. Day
120 MWH
B. Month
_
C. Year
PREVIOUS EDITION MAY BE USED UNTIL SUPPLY IS EXHAUSTED

H. Maximum amount. or principal i1m.l. pr•oduif•d or rnw mnLrrial ton-onovd, iar'Irrl
In Clem 7, above, is measured in (Check one):
A. ❑ pounds B. ❑ tons C. ❑ barrels D. ❑ bushels E. ❑ square feet
F.❑ gallons G.❑ pieces or units H.6 other, specify Megawatt -Hours
9. (a) Check here if discharge occurs all year )b , or
(b) Check the month(s) discharge occurs:
l .❑ January 2. ❑ February 3. ❑ March 4.0 Apri 1 5:0 May 6.❑ June
7.0 July 8.0 August 9.❑ September 10.0 October 11.0 November 12.13 December
(c) Check how many days per week: 1.01 2.02-3 3.b 4-5 4.6 6-7
10. Types of waste water discharged to surface waters only (check as applicable)
F low, gallons per operating day
Volume treated before
discharging (percent)
Discharge per
operating day
0.1-999
1000-4999
5000-9999
10,000-
50,000-
None
0.1-
30-
65-
95-
49,999
or more
29.9
64.9
94.9
100
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(B)
(9)
(10)
A. Sanitary, daily
average
B. Cooling water, etc.
200,000
X
daily average
C. Process water,
daily average
I. Maximum per operat-
ing day for total
discharge (all t es)
11. If any of the three types of waste identified in item 10, either treated or untreated,
are discharged to places other than surface waters, check below as applicable.
Waste water is
discharged to:
Average flow, gallons per operating day
0.1-999
(1)
1000-4999
(2)
5000-9999
(3)
10,000-49,999
(4)
50,000 or more
(5)
A. Municipal sewer system
B. Underground well
C. Septic tank(Sewage only)
125
D. Evaporation lagoon or pond
E. Other, specify
12. Number of separate discharge points: A.01 B.❑2-3 C.❑4-5 D.❑6 or more
13. Name of receiving water or waters f;rPpn RiyPr
14. Does your discharge contain or is it possible for your discharge to contain
one or more of the following substances added as a result of your operations,
activities, or processes: ammonia, cyanide, aluminum, beryllium, cadmium, w.•"+
chromium co pper, lead, mercury, nickel, selenium, zinc, phenols, oil and -_�•t'�. �r�c.�''
grease, and chlorine (residual). A.❑ yes B.k no
CEP 16, 1985
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, complet(,, and
accurate.
_E, N. Hedgepeth, Jr. Vice Presi ent, Operating
Printed Name of Person Signing Title
September 7, 1988 o
Date Application Signed Signature of Appl'
North Carolina General Statute 143-215.66)(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 knowly renders inaccurate any recording or monitoring device or method required to be
operated or maintained under Article 21 or regulations of the Environmental Management Commissic
implementing that Article, shall be guilty of a misdemeanor pumishable by a fine not to exceed
$10;000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provic
a punishment by a fine of not more than $10,000 or imprisonment not more than 5 years, or both,
for a similar offense.)

Water Qtiamy Section
DEC 2 7 1988
Ashe il':e �e :gin,:; Office
U� State of North Carolina ,Ashvi►le, Nortli Carolina
Department of Natural Resources and Community Development
Division of Environmental Management
512 North Salisbury Street • Raleigh, North Carolina 27611
James G. Martin, Governor R. Paul Wilms
S. Thomas Rhodes, Secretary December 21, 1988 Director
Mr. E. N Hedgepeth
Rt. 1, Box 104-D
Flat Rock, NC 28731
Subject: Permit No. NCO004502
Duke Power Company
Henderson County
Dear Mr. Hedgepeth:
In accordance with your application for discharge perthit received on
September 16, 1988, we are forwarding herewith the subject. State - NPDES permit.
This permit is issued pursuant to the requirements of North Carolina General Statute
143-215.1 and the Memorandum of Agreement between North Carolina and the US
Environmental Protection Agency dated December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in
this permit are unacceptable to you, you may request a waiver or modification pursuant
to Regulation 15 NCAC 2B .0508(b) by written request to the Director_ identifying the
specific issues to be contended. Unless such request is made within 30 days following
receipt of this permit, this permit shall be final and binding. Should your request
be denied, you will have the right to request an adjudicatory hearing.
Please take notice that this permit is not transferable. Part II, D.3.
addresses the requirements to be followed in case of change in ownership or control of
this discharge.
This permit does not affect the legal requirements to obtain other permits
which may be required by the Division of Environmental Management 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 Mr. David
Foster at telephone number 919/733-5083.
cc: Mr. Jim Patrick, EPA
rAsheville Regional_�Jf-f-iced,
Sincere6FIffiaal Signed Ey
ARTHUR MIOWERRY
For-
R. Paul Wilms
Pollution Prevention Pnvs
P.O. Box 27687, Raleigh, North Carolina 27611-7687 Telephone [phone]
An Equal Opportunity Affirmative Action Employer

Permit No. NC0004502
STATE OF NORTH CAROLINA
DEPARTMENT OF NATURAL RESOURCES AND COMMUNITY DEVELOPMENT
P E R M I T
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provisions of North Carolina General Statute 143-215.1,
other lawful standards and regulations promulgated and adopted by the North Carolina
Environmental Management Commission, and the Federal Water Pollution Control Act, as
amended,
`Duke Power Company
is hereby authorized to discharge wastewater from a facility located at
Tuxedo Hydro Station
NCSR 1836
Henderson County
to receiving waters designated as the Green River in the Broad River Basin
in accordance with effluent limitations,.. monitoring requirements, and other
conditions set forth in Parts I, II, and III hereof.
This permit shall become effective January 1, 1989
This permit and.the authorization to discharge shall expire at midnight on
November 30, 1993
Signed this day December 21, 1988
Origrinal'Sagned By
ARiTHUR MOUBERRY
for.
R. Paul Wilms, Director
Division of Environmental Management
By Authority of the Environmental Management Commission

Permit No. NC0004502
SUPPLEMENT TO PERMIT COVER SHEET
Duke Power Company
is hereby authorized to:
1. Continue the discharge of once -through, non -contact cooling water located
at Tuxedo Hydro Station, NCSR 1836, Henderson County, (Note Part III of
this Permit), and
2. Discharge from said treatment works into the Green River which is
classified Class "C-Trout" waters in the Broad River Basin.

A. (_1_)- EFYLUENT LIMITATIONS AND MONITORING REQUIRF.MFNTS Final
NPDES No. NC0004502
During the period beginning on the effective date of the permit and lasting until expiration, the
Permittee is authorized to discharge from outfall(s) serial number(s) 001. Such discharges shall be limited
and monitored by the permittee as specified below:
Effluent Characteristics
Lbs da
Daily Avg. Daily Max.
Flow
Temperature
Discharge Limitations
Other Units (Specify)
Daily Avg. Daily Max.
Monitoring Requirements
Measurement Sample Sample
Frequency Type Location
THERE SHALL BE NO CHROMINUM, ZINC, OR COPPER ADDED TO THE COOLING WATER.
*Sample locations: E-Effluent, U-Upstream, D-Downstream
**The temperature of the effluent shall be such as not to cause an increase in the temperature of the
receiving stream of more than 0.5 degrees Celsius and in no case cause the amibient water temperature to exceed to
20 degeees Celsius.
The permittee shall obtain authorization from the Division of Environmental Management prior to
utilizing any biocide in the cooling water (See Part III of this Permit).
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts.

Part I
B. Schedule of Compliance
1. The permittee shall comply with Final Effluent Limitations specified for
discharges in accordance with the following schedule.:
Permittee shall comply with Final Effluent Limitations by the effective
date of the permit.
2. Permitt.ee sltal.l at all tilTMS provide the operation and maintenance
necessary to operate the existing facilities at: optimnrll efficiency.
3. No later than 14 calendar days following a dates identified in the above
schedule of compliance, the per.mittee shall submit either a report of
progress or, in the case of specific actions being required by identified
dates, a written notice of compliance or noncompliance. In the latter
case, the notice shall include the cause of noncompliance, any remedial
actions taken, and the probability of meeting the next schedule
requirements.

Part 11
Page 1 of 14
PART II
STANDARD CONDITIONS FOR NPDES PERMITS
SECTION A. GENERAL CONDITIONS
1. Duty to Comply
The permittee must comply with all conditions of this permit. Any permit
noncompliance constitutes a violation of. the Clean Water_ Act and is grounds
for enforcement action; for permit termination., revocation and reissuance,
or modification; or for denial of a. permit renewal a1)pli.c:.3tion.
2. Penalties for Violations of Permit. Conditions
Any person who violates a permit- co,idition is subject to a civil. penalty not
to exceed $1.0,000 per day of such violation. Any person who willfully or
negligently violates a permit condition is guilty of a misdemeanor punishable
by a fine not to exceed $15,000 per day of violation, or by imprisonment
not to exceed six months or both.
3. Duty to Mitigate
The permittee shall take all reasonable steps to minimize any adverse impact
to navigable waters resulting from noncompliance with any effluent limitations
specified in this permit, including accelerated or additional monitoring as
necessary to determine the nature and impact of the noncomplying discharge.
4. Permit Modification
After notice and opportunity for a hearing pursuant. to NCGS 143-21.5.1(b)
(2) and NCGS 143-215.1(e) respectively, this permit may be modified, suspended,
or revoked in whole or in part during its term for cause including, but not
limite,i to, the following:
a. Violation of any terms or conditions of tl-i.s per.ini.t;
b. Obtaining th.i.s permit by mi.srepresenta1;1011 or.• failure to disclose fully
all relevant facts;
C. A change in any condition that requires either a temporary or permanent
reduction or elimination of the authorized discharge; or
d. Info.rmation newly acquired by the Division indicating the discharge poses
a threat to human health or welfare.
If the permittee believes that any past or planned activity would be cause for
modification or revocation and reissuance, the permittee must report such
information to the Permit Issuing Authority. The submittal of a new application

Part 11
Page 2 of 14
may be required of the permittee. 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 noncompl..i.ar.c_es, does not stay
any permit condition.
5. Toxic Pollutants
Notwithstanding Part II, A-4 above, if a toxic effluent: standard or prohibition
(includiug any schedule of CcalpliallcE; specified in such e.f l,,ent: standard or
prohibition.) is established under Section. 307(a) of the Act for a toxic
pollutant which is present in the discharge, if such standard or prohibition
is more stringent than any limitation for suctl pollutant in this permit., this
permit shall be revised or modified in accordsnce with tli�� coxic effluent
standard prohibition and the permittee. so notified.
The permittee shall comply with effluent standards or prohibitions established
under Section 307(n) of the Clean Water Act for toxic pol.tutarlts loit:hi.n. the
time provided in the regulations that establish those standards or prohibitions,
even if the permit has not yet been modified to incorporat.n the requirement.
6. Civil and Criminal Liabili
Except as provided in permit conditions on "Bypassing" (Part II, B-3) and
"Power Failures" (Part II, B-6), 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 131.9. Furthermore, the permittee is responsible for
consequential damages, such as fish kills, even though the responsibility
for effective compliance may be temporarily suspended.
7. oil. anti Ilazar.dcus Substance Liability
NOthiTlu in 0-ds perini_t shall f)n cu'astrl,,'d tcl preCll.ldc tllt? iTIst.itution of anv
legal action or relieve the permittee from any r.esp nsibi iti.es, liabilities',
or penalties to the perm-ittee is or may be subject to under NCGS
143-21.5.75 at seq. or Sect: ion 31-1 of the: Federal Art, 33 USC 1321. Furthermore,
the permittee is responsible for consequential. damages, such as fish kills,
even though the responsibility for effective compliance may be temporarily
suspended.
8. Property Rights
The issuance of this permit does not convey.any property rights in either real
or personal property, or any exclusive privileges, T:l.cr dons it authorize any
injury to private. property or any invasion of personal rights, nor any
infringement of Federal, Statee or local laws or regulations.

Par.L II
Page 3 of 14
9. Onshore of Offshore Construction
This permit does not authorize or approve the construction of any onshore or'
offshore physical structures or facilities or the undertakii.ig of any work
in any navigable waters.
10. Severability
The provisions of this permit are severable, and if any provision of this
permit, or the application of any provision of this permit to any circumstances,
is held invalid, the applicati-on of such provision to other circumstances, and
the remainder of this permit, shall not be affected thereby.
11. Duty_to Provide Information
The permittee shall furnish to the Permit. Issuing Authority, within a reason-
able time, any information which the Permit Issuing Ant:hority 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 to be kept by this permit.
SECTION B. OPERATION AND MAINTENANCE OF POLLUTION CONTRO[,S
1. Proper Operation and Maintenance
The permittee shall. at all times maintain in good working order and operate
as efficiently as possible all treatment or control facilities or systems
installed or used by the permittee to achieve compliance with the terms
and conditions of this permit.
2. 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 hal.t or re(hice. the permitted activity in
order to maintain compliance with the condition of this permit.
3. Bypassir
Any diversion from or bypass of facilities is prohibited, except (i) where
unavoidable to prevent loss of life or severe property damage, or (ii)
where excessive storm drainage or runoff would damage any facilities
necessary for compliance with the effluent limitations and prohibitions of this
permit. All permittees who have such sewer bypasses or overflows of this
discharge shall submit, not .later than six months from the date of issuance
of this permit, detailed data. or engineering estimate:5 which identify:
a. The l.oca.tion of each sewer system bypass or overflow;
b. The .fre(1lle..t1CV, duration and quarl_jLy of flow from e,1--b sewer system
b\%r;;as- or ove).- f low.

Part II
Page 4 of 14
This requirement is waived where infiltration/inflow analyses are scheduled
to be performed as part of an Environmental Protection Agency facilities
planning project.
The permittee shall report by telephone to either the central office or
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 division from or
bypass of facilities.
4. UPsets
"Upset" means an exceptional incident in which there is unintentional and
temporary noncompliance with technology based permit effluent limitations
because of factors beyond the reasonable control of the permittee. An upset
does not include noncompliance to the extent caused by operational error,
improperly designed treatment facilities, inadequate treatment facilities,
lack of preventive maintenance, or careless or improper operation. An upset
constitutes an affirmative defense to an action brought for noncompliance
with such technology based permit limitation if the requirements of 40 CFR S
122.41(n)(3) are met.
5. Removed Substances
Solids, sludges, filter backwash, or other pollutants removed in the course of
treatment or control of wastewaters shall be 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.
6. Power Failures
The permittee is responsible for maintaining adequate safeguards as required
by DEM Regulation, Title 15, North Carolina Administrative Code, Subchapter 211,
.0124 Reliability, 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 C. MONITORING AND RECORDS
1. Representative Sampling
Samples collected and measurements taken, as required herein, shall be
characteristic of the volume and nature of the permitted discharge. Samples
collected at a frequency less than daily shall be taken on a day and time that
is characteristic of the discharge over the entire period which 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.

Part II
Page 5 of 14
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
(DEM No. MR 1, 1.1, 2, 3) or alternative forms approved by the Director, DEM,
postmarked no later than the 30th day 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 facil.ity, 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:
Division of Environmental Management
Water Quality Section
ATTENTION: Central Files
Post Office Box 27687
Raleigh, North Carolina 27611
3 Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted
scientific practices shall be selected and used to insure the accuracy and
reliability of measurements of the volume of monitored discharges. The
devices shall be installed, calibrated and maintained to insure that the
accuracy of the measurements are 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. Once -through condenser
cooling water flow which is 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
Test procedures for the analysis of pollutants shall conf.orin 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 Federal Water Pollution Control. Act, as Amended, and
Regulation 40 CFR 136.
5. Penalties for Tampering
The Clean Water Act 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 convict.i.on, by punished by a fine of
not more than. $10,000 per violation, or by imprisonment for not more than.
six months per violation, or by both.

Part II
Page 6 of 14
6. Records Retention
All records and information resulting from the monitoriii)g activities required by
this permit including all records of analyses performed and cal.-Lbration and
maintenance of instrumentation and recordings from continuous monitoring
instrumentation shall be retained for a minimum of three (3) years by the
permittee. Thisperiod of retention shall be extended during the course
of any unresolved litigation or if requested by the Division of Environmental.
Management or the Regional Administrator of the Environmental Protection Agency.
7. Recording_ Results
For each measurement or sample taken pursuarit to the re.quireryients of tha.s
permit, the permittee shall record the following infe):mation:
a. The exact place, elate, and time of sampling;
b. The dates the analyses were performed;
C. The person(s) who performed the analyses; and
d. The .r.esillts of such analyses.
8. Right. of Entry
The permittee shall. allow the Director of the Division of Environmental
Management, the Regional Administrator, and/or their authorized representatives,
upon the presentations of credentials:
a. To enter upon the permittee's premises where an effluent source is located
or in which any records are required to be kept. under the terms and
conditions of this permi.t; and
t). At ro.a.sonable, (-:_ales t') J.gve acres@.• to and copy a3 11 -e'c( dF :�E'C(lil.'t:(.d t.r L1P.
kept under the terms and conditions of this; permi.t.; to inspect any
monitoring equipment: or monitoring mct!jod rep{aired in t:hJs permit; ar,d
to sample any discharge Of pollutan.ts.
SECTION D. REPORTING REQUIREMENTS
1. Change in Discharge
All discharges authorized herein shall be consistf.nt a,,it.h the terms and
conditions of this permit. The discharge of any pol.l.ul:ant identified in
this permit more frequently than or at a level in excess of that authorized
shall constitute a violation of the permit. Any anticipated facility
expansions, production increases, or process modifications which will result

0
3
4.
5.
N
Part II
Page 7 of 14
in new, different, or increased discharges of pollutants must be reported by
submission of a new NPDES application or, if such changes will riot violate
the effluent limitations specified in this permit, by notice to the DEM of
such changes. Following such notice, the permit may be modified to specify
and limit any pollutants not previously limited.
Anticipated Noncompliance
The permittee shall give notice to the Permit Issuing Alithor.i.ty of any planned
change in the permitted facility or activity which may result in noncompliance
with permit requirements. Any maintenance cf facilities, which might
necessitate unavoidable interruption of operation and degradation of effluent
quality, shall be scheduled during noncritical water quality periods and carried
out in a manner approved by Che, Permit Issuing Authority.
Transfer of Ownership or_Cpntro.l
This permit is not transferable. In the event of any change in name, control
or ownership of facilities from which the authorized discharge emanates or is
contemplated, the permittee shall notify the prospective owner' or controller by
letter of the existence of. this permit and of the need to obtain a permit in the
name of the prospective owner. A copy of the letter shall. be forwarded to the
Division of Environmental Management.
Additional Monitoring by Permittee
If the permittee monitors any pollutant at the location(s) designated herein
more frequently than required by this permit, using approved analytical methods
as specified above, the results of such monitoring shall be included in the
calculation and reporting of the values is required in the DMR. Such increased
frequency shall also be indicated. The DEM may regiii.re more frequent monitoring
or the monitoring of other pollutants not required in this permit by written.
notification.
Averaging_oF Measurements
Calculations for limitations which require averaging of measurements shall.
utilize an arithmetic mean unless otherwise specified by the Permit Issuing
Authority in the permit.
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:

7
Part II
Page 8 of 14
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 failures of pumps, aerators, compressors, etc.
C. Any failure of a pumping station, sewer line, or treatment facility
resulting in a by-pass directly to receiving waters without treatment
of all or any portion of the influent to such station or facility.
d. Any time that self -monitoring information indicates that the facility Us
gone out of compliance with its NPDES permit limitations.
Persons reporting such occurrences by telephone shall also file a written
report in letter form within 15 days following fi.r.st. Wowlodge of the
occurrence.
Changes in Discharges of Toxic Substances:
The permittee shall notify the Permit Issuing Authority as soon as it knows or
has reason to believe:
a. That any activity has occurred or will occur which would result in the
discharge, on a routine or frequent basis, of any toxic: substance(s) (listed
at 40 CFR S 122, Appendix D, Table II and III) 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 (1.00 ug/1);
(2) Two hundred micrograms per liter (200 ug/.1) for acrole.in and
ac.r_yloni.trile; five hundred micrograms per liter. (500 ug/1)
for 2,4-dinitrophenol and for 2-methyl-4,6-dinitr.ophenol; and one
milligram per liter (1 mg/1) for antimony; or.
(3) Five (5) times the maximum concentration Value reported for that
pollutant(s) 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
(listed at 40 CFR S 122, Appendix D. Table Il and III) which is not
limited in the permit, if that discharge will exceed the highest of the
following "notification levels":

Part II
Page 9 of 14
(1) Five hundred micrograms per liter (500 ug/1);
(2) One milligram per liter (1 mg/1) for antimony; ox
(3) Ten (10) times the maximum concentration value reported for that
pollutant(s) in the permit application.
8. Expiration of Permit
Permittee is not authorized to discharge after the expiration date. In order to
receive authorization to dischnr e beyond tPle expiration date, the permittee
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.
Any discharge without a permit after the expiration will subject the permittee
to enforcement procedures as provided in NCGS 143-215.5 and 33 USC 1251. et seq.
9. Si natoryRequirements
All applications, reports, or information submitted to the Permit Issuing
Authority shall be signed and certified.
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 employing more
than 250 persons or having gross annual sales or expenditures
exceeding 25 million (in second quarter 1980 dollars), if 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.
b. All reports required by the permit and other information requested by the
Permit Issuing Authority shall be signed by a person described 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 ind.ividu:ll 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

Part II
Page 10 of 14
well field, superintendent, a position of equivalent responsibility,
or an individual or position having overall responsibility for environ-
mental 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.
C. Certification. Any person signing a document under paragraphs a. or b. of
this section shall making the following certification:
"I certify, under penalty of low, that this document and all attachments
were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons who
manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and
believe, 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."
10. Availability f Reports
Except for data determined to be confidential under NCGS 1.43-215.3(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 of Environmental Management. 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.
11. Penalties for Falsification of Reports
The Clean Water. Act provides that any person who know:irig:i.y makes any false
statement.. representation, or c.,.rti.ficaLion in any record or: other document
submitted or required to be maintained under this permit., including monitoring
reports or reports of compliance or noncomplianc(F shall, upon conviction, be
punished by a fine of not mo-re than 11.0,000 per violation, oy by imprisonment
for not more than six months per violation, or by both.
SECTION E. DEFINITION
1. Permit Issuing Authority
The Director of the Division of Environmental Management.
2. DEM or Division
Means the Division of Environmental Management, Department of Natural.
Resources and Community Development.

Part II
Page 11 of 14
3. EMC:
Used herein means the North Carolina Environmental Management Commission.
4. Act or "the Act"
The Federal Water Pollution Control Act, also known as the Clean Water Act, as
amended, 33 USC 1251, et. seq.
5. Mass/Dav Measurements
a. The "monthly average discharge: is defined as the total mass of all
daily discharges sampled and/or measured during a calendar month on
which daily discharges are sample and measured, divi.dod by the number
of daily discharges samples and/or measured during such month. It is
therefore, an arithmetic mean found by adding the weights of the
pollutant found each day of the month and then dividing this sum by
the number of days the tests were reported. The limitation is
identified as "Daily Average" or "Monthly Average" in Part I of the
permit.
b. The "weekly average discharge" is defined as the total. mass of
all daily discharges sampled and/or measured during the calendar week
(Sunday -Saturday) on, which daily discharges are sampled and measured,
divided by the number of daily discharges samples and/or measured
during such week. It is, therefore, an arithmetic mean found by
adding the weights of pollutants found each day of the week and then
dividing this sum by the number of days the tests were reported. This
li..ni.tat:i.on i.s ident..if.ied as "Weekly: Average" in .P.aTt: T of the perin:i.t.
C. The "maxi.mum daily discharge" is tha total mass (we..i_ght:) of a
pollutant discharged during a calendar clay. If only o..F2� sample is
taken during any calendar day the weight of pol.l.utan t calculated from
it is the "maximum daily discharge." This limitation is identified as
"Daily Maximum," in Part I of the permit.
d. The "average annual discharge" is defined as the. total mass of all
daily discharges sample and/or measured during the calendar year on
which daily discharges are sampled and measured, divided by the number
of daily discharges sampled and/or measured during such year.. It is,
therefore, an arithmetic mean found by adding the weights of
pollutants found each day of the year and th(-.n) dividing this sum by the
number of days the tests were reported. This limitation is defined as
"Annual. Average." in. Part I of the permit.

Part II
Page 12 of 14
6. Concentration Measurement
a. The "average monthly concentration," other than for .faecal coliform
bacteria, is the sum of the concentrations of all daily discharges
samples and/or measured during a calendar month on which daily discharges
are sampled and measured, divided by the number of daily discharges sampled
and/or measured during such month (arithmetic mr-an of the daily
concentration values). The daily concentration value is equal to the
concentration of a composite sample or in the case of grab samples is the
arithmetic mean (weighted by flow value) of all the samples collected
during.that calendar day. The average monthly count. for fecal coliform
bacteria is the geometric mean of the counts for samples collected during a
calendar month. This limitation is identified as "Monthly Average" or
"Daily Average" under "Other Limits" in Part I of the permit.
b. The "average weekly concentration," other than for fecal coliform bacteria,
is the sum of the concentrations of all daily discharges sampled and/or
measured during a calendar week (Sunday/Saturday') on which daily discharges
are sampled and measured divided by the number of da-ily discharges sampled
and/or measured during such week (arithmetic mean of the daily
concentration values). The daily concentration value is equal to the
concentration of a composite sample or in the case of grab samples is the
arithmetic mean (weighted by flow value) of all the samples collected during
that calendar day. The average weekly count for fecal coliform bacteria is
the geometric mean of the counts for samples collected during a calendar.
week. This limitation is identified as "Weekly Average." under "Other
Limits" in Part I of the permit.
C. The "maximum daily concentration" is the. concentration of a pollutant
discharge during a calendar day. It is iden.ti.fied as "Daily Maximum"
„
under Other Limits„ .n Part I of the. r,ermit:.
d. The "average annual concentration, other than .for fecal coliform bacteria,
is the sum of the concentrations of all daily discharg s sampled and/or
measured during a calendar year on which daily discharges are sampled and
measured divided by the number of daily discharges sampled and/or measured
during such year. (arithmetic mean of the daily concentration values). The
daily concentration value is equal to the concentration of a composite
sample or in the case of grab samples is the arithmetic mean (weightedby
flow value) of all the samples collected during that. calendar day. The
average yearly count for fecal coliform bacteria is the geometric mean
of the counts for samples collected during a calendar year.. This limitation
is identified as "Annual Average" under "Other. Limits" in Part I of the
permit.

Part II
Page 13 of 14
7. Other Measurements
a. Flow, (MGD): The flow limit expressed in this permit is the 24 hours
average flow, averaged monthly. It is determined as the arithmetic mean
of the total daily flows recorded during the calendar month.
b. An "instantaneous flow measurement" is a measure of flow taken at the time
of sampling, when both the sample and flow will be representative of the
total discharge.
8. Types of Samples
a. Composite Sample: These samples consist of grab samples collected at
equal intervals and combined proportional to flow, a sample continuously
collected proportionally to flora, or equal volumes taken at varying time
intervals. If a composite sample is obtained from grab samples, the
following requirements apply. The intervals between influent grab
samples shall be no greater than hourly. Intervals between effluent grab
samples shall be no greater than hourly except where the detention time
of the wastewater in the facility is greater than 24 hours, in which
case, the interval between grab samples shall be no greater in number of
hours than the detention time in number of days; provided, however, in
no case may the time between effluent grab samples be greater than six
hours nor the number of grab samples less than four during any discharge
period of 24 hours or less.
b. Grab Sample: Grab samples are individual samples collected over a
period of time not exceeding 15 minutes; the grab sample can be taken
manually.
9. Calculation of Means
a. Arithmetic Mean: The arithmetic mean. of any set of values is the summation
of the individual values divided by the number of individual values.
b. Geometric Mean: The geometric mean of any set of values is the Nth root of
the product of the individual values where. N is equal to the number of
individual values. The geometric mean is equivalent to the antilog of
the arithmetic mean of the logarithms of the individual values. For
purposes of calculating the geometric mean, values of zero (0) shall be
considered to be one (1).
C. Weighted by Flow Value: Weighted by flow value means the summation of each
concentration times its respective flow divided by the summation of the
respective flows.

Part II
Page 14 of 14
10. Calendar Day
A calendar day is defined as 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.
11. Hazardous Substance
A hazardous substance means any substance designated under 40 CFR Part 116
pursuant to Section 311 of the Clean Water Act.
12. Toxic Pollutant
A toxic pollutant is any pollutant listed as toxic under Section 307(a)(1) of
the Clean Water Act.

PART III
OTHER REQUIREMENTS
A. Previous Permits
All previous State water quality permits issued to this facility, whether for
construction or operation or discharge, are hereby revoked by issuance of this
permit. The conditions, requirements, terms, and provisions of this permit
authorizing discharge under the National Pollutant Discharge Elimination
System govern discharges from this facility.
B. Construction
No construction of wastewater treatment facilities or additi.oris thereto shall
be begun until Final Plans and Specifi.c.aticns have been. submitted to the
Division of Environmental Management and written approval and Authorization
to Construct has been issued.
C. Certified Operator
Pursuant to Chapter 90A of North Carolina General Statutes, the permittee shall
employ a certified wastewater treatment plant operator in responsible charge
of the wastewater treatment facilities. Such operator MUst hold a. certification
of the grade equivalent to or greater than the classification assigned to the
wastewater treatment facilities.
D. Groundwater Monitoring
The permittee shall, upon written notice from the Director of the Division of
Environmental Management, conduct groundwater monitoring as may be required
to determine the compliance of this NPDES permitted facility with the current
groundwater standards.
E. Limitations Reopene.r
This permit: shall be. modified or alternatively, revoked and reissued, to comply
with any applicable, effluent guideline or water quality standard issued or
approved tinder Section 302(b) (2) (c), and (d), 304.(b) (2), end 307(a) (2)
of the Clean Water Act, if the effluent guideline or water_ quality standard
so issued or approved:
1. contains different conditions or is otherwise mc,r.e stringent than any
effluent limitation in the permit; or
2. controls any pollutant not limited in the permit.
The permit as modified or reissued under this par_ag.r.nph shall also contain any
other requirements in the Act then applicable.

Part III
Continued
F. Toxicity Reopener
This permit shall be modified, or revoked and reissued to incorporate toxicity
limitations and monitoring requirements in the event toxicity testing or other
studies conducted on the effluent or receiving stream indicate that detrimental
effects may be expected in the receiving stream as a result of this discharge.

V
n
a-.- (g -
W-r--

Edward D Bruce To: Robert S Rutledge/Gen/DukePower@DukePower, Jimmie A Stowe
10/12/01 11:12 AM Jr/Gen/DukePower@DukePower
cc: Lawrence B Somers/Corp/DukeEnergy@DukePower, Jeffrey G
Lineberger/Corp/DukePower@ DukePower
bcc:
Subject: Tuxedo
The 16 GPM equals about .023 MGD which is about .0226% of the station discharge of one unit at Best
Efficiency Point.
----- Forwarded by Edward D Bruce/Corp/DukePower on 10/12/01 11:06 AM -----
Gregg M Blevins To: Edward D Bruce/Corp/DukePower@DukePower
10/12/01 10:48 AM cc: Edwin C Luttrell/Pwr/DukeEngineering@DukePower, John C
Sigmon/Pwr/DukeEngineering@ DukePower
bcc:
Subject: Tuxedo
Ed,
The following is a list of the estimated water discharges from Tuxedo:
1. Upper generator guide and thrust bearing cooling water (6 GPM per unit) 12 GPM total
2. Leakage from stem packing on scroll case isolations valve (1 GPM per unit max.) 2 GPM total
3. Leakage from wicket gate stem packing on turbine (1 GPM per unit max.) 2 GPM total
4. Discharge from operator on scroll case isolation valve 5 gallons per
stroke
Maximum station discharge (excluding turbine) - 16 GPM
Discharge from Items 2 and 3 will vary depending on the condition of the stem packing. When the
leakage gets high (approximately 1 GPM per valve or turbine) the packing will be replaced and the
leakage will be reduced. Discharge from Item 4 will only occur when the valve is stroked. This valve is
only closed when the turbine is un-watered. Items 2, 3 and 4 all discharge into the turbine draft tube.
Item 1 is the only discharge that would have any measurable temperature rise.

4/4
T NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
ASHEVILLE REGIONAL OFFICE
WATER QUALITY SECTION
October 13, 1999
Mr. Darrell Roberts
Duke Power Company
957 Spartanburg Highway
Hendersonville, North Carolina 28739
Subject: Location of Publicly Owned
Wastewater Treatment Facilities
Dear Mr. Roberts:
In your October 5, 1999 telephone call you asked that I
provide you with the name, location and telephone numbers of
publicly owned wastewater treatment -facilities in Henderson,
Polk, Transylvania and Rutherford Counties. Follows is the
requested information:
City of Hendersonville
N.C. Justice Center
West Henderson High
Rugby Middle School
North Mills River,
U.S.F.S.
City of Brevard
Town of Rosman
Pisgah Wildlife
Education Center
Town of Columbus
LOCATION
HENDERSON COUNTY
Balfour
Edneyville
Bal f our
Balfour
Mills River
TRANSYLVANIA COUNTY
Pisgah Forest
S.E. of Rosman
North of Pisgah
Forest
POLK COUNTY
East of Columbus
828-697-3077
828-697-4818
828-697-4992
828-697-4992
828-257-4200
828-883-8461
828-884-6859
828-877-4423
828-894-3055
City of Saluda South of City 828-697-0063
INTERCHANGE BUILDING, 59 WOODFIN PLACE, ASHEVILLE, NC 28801-2414
PHONE [phone] FAX [phone]
AN EQUAL OPPORTUNITY / AFFIRMATIVE ACTION EMPLOYER - SO% RECYCLED/10% POST -CONSUMER PAPER

Darrell Roberts
October 11, 1999
Page Two
NAME
Town of Tryon
Tryon Middle School
Polk Central School
Town of Rutherfordton
Town of Spindale
Town of Forest City
Town of Lake Lure
LOCATION PHONE NOMBER
South of Town 828-859-5626
NE of Tryon 828-859-5626
East of Columbus 828-859-5626
& Mill Springs
RUTHERFORD COUNTY
South of Town 828-287-3520
N.E. of Town 828-286-2541
East edge of Town 828-245-4747
Below dam 828-625-9983
If you need me to add to this information in any way
please do not hesitate to call me at 828-251-6208.
Sincerely,
Roy M. Davis
Environmental Engineer
DUKEPOWL.99

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NPDES Facilities in Polk County
3 POTW's and 2 Schools
POTW's
Town of Columbus
Bob Barwell, ORC
[phone] or 8236
located east of Columbus
off Levi Road Extension
City of Saluda
[phone] City Hall
Mayor: Kim Talbot
Contract ORC:
James and James Env. Mgmt.
[phone]
Town of Tryon
Joel Burrell, ORC
[phone]
located in the south end of town
Schools:
1. Polk County Board of Education
Tryon Middle School
located in the northeast end of town
0.6 mile from intersection of Highways 108
and NCSR 1121
2. Polk County Board of Education
Polk Central School
located east of Columbus & Mill Spring
off Highway 9
Joel Burrell, contract ORC at both schools
[phone]

WATER QUALITY SECTION
October 7, 1999
MEMORANDUM
TO: Roy Davis
FROM: Kerry Becker
SUBJECT: List of publicly owned facilities in Transylvania
Co.
The following are the facilities Mr. Roberts has inquired
about:
City of Brevard NC0060534 (-
The wastewater treatment facility is located adjacent to the
French Broad River on Wilson Rd. at Pisgah Forest, N. C.
Town of Rosman NCO021946�('�' - 9
The wastewater treatment facility is located on NCSR 1156
adjacent to the French Broad River on the southeast side of
Rosman, N. C. a P ry, C
/ -- ta(R 8 7 7- C/- � fa'3
Pisgah Wildlife Education Center WQ0012498
This is a drip irrigation type facility. It has the
capacity to store wastewater in the event of power failure
or excessive rainfall. Also, if power is off, none of the
drinking water wells are operable.
This facility is located on U. S. Forest Service 475 off of
U. S. Hwy 276 north of Pisgah Forest, N. C.

`�
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�"Y--1--

09/30/99 10:12 FAX [phone] DPCO GEN SVC Q 001
PM Duke
Energy►.
Fax
Date. 9130199
To: Roy Davis Fax: [phone]
Company:
Phone: [phone]
From: John Estridge Fax: [phone]
Company:
Number of pages including this cover page:
Subject: Tuxedo Hydro Flume Coating
Phone: (U4-D f D-aada
Attached please find directions to Tuxedo Hydro. NOD caime ano mysun vsrm a 1GGL y..LI
at loam on Tuesday October S, 1999. We will meet you at the Tuxedo Hydo
powerhouse site. Let me know if you have any questions. Thanks,
This facsimile contains information which (a) may be LEGALLY PRIVILEGED,
PROPRIETARY IN NATURE, OR OTHERWISE PROTECTED BY LAW FROM DISCLOSURE,
and (b) is intended only for the use of the Addressee(s) named above. If you arenot he
Addressee, or the person responsible for delivering this to the Addressee(s), you are
hereby notified that reading, copying or distributing this facsimile is prohibited. If you
have received this facsimile in error, please telephone us immediately.

09/30/99 10:12 FAX [phone] DPCO GEN SVC Q002
Facility Type : Hydro Station
Facility Name Tuxedo Hydroelectric Station
Street Addr. : R1 Box 104A, Pot Shoals Rd
Mail Addr.
City : Flat Rock Phone No.: [phone]
State : NO Microwave : ( 8) 698-2070
Zip : 28731 Est. miles frcm Olt: 120
Directions:
I-85 S to Hwy 74 W (Shelby Exit) to I-26 W to the Saluda exit, at stop sign
turn left on Hwy 176, turn right and go through Saluda, cross bridge, go to
top of hill, turn right and follow road to powerhouse
fend). (this last turn Is hard tc

09/30/99 10:12 FAX [phone] DPCO GEN SVC Q 003
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MEMORANDUM
DIVISION OF ENVIRONMENTAL MANAGEMENT
January 3, 1990
TO: Ken Eagleson
THROUGH: Jimmie Overton
Trish MacPherson --
FROM: David Penrose
SUBJECT: Review of Duke Power Company's Green River Data Following a Penstock
Failure in June 1987. (Broad River Basin, 03-08-03)
Biologists with Duke Power Company conducted a series of macroinvertebrate
collections in the Green River below a 1987 penstock failure and landslide at their Tuxedo
Hydro Station. Benthos samples were collected at three sites on the Green River with Hess
samplers immediately following the penstock failure (June and September 1987), one year
after the failure (June and September 1988) and in September 1989. The 1989 data had not
been analyzed prior to the completion of this summary. The report indicates that there was
a significant decline in macroinvertebrate densities only at the Fishtop Access Area, which
is the most downstream collection station. The Fishtop Area is at a point in the Green
River "at which the river begins to change from a high gradient to low gradient river." The
effects of sedimentation are likely to be more pronounced at lower gradient sections. All
other density -location comparisons were not significant. In addition, there was no
indication of flow or spate events prior to collection which may have affected scour and
macroinvertebrate densities.
The effects of sedimentation in mountain river systems are difficult to assess.
However, there are several points that should have been considered by Duke Power
Company during the initial phases of the investigation that would have helped in the
assessment. First of all, they note in their summary that the Green River within the
collection area "is less.diverse and less abundant than other regional systems." This point.
was not validated with collections of benthic data from reference locations (ie. the Hungry
River) or from a location above Lake Summitt and the penstock failure.
The choice of the collection technique was not appropriate. Hess samples are
typically collected from shallow riffle areas with adequate current. However, the potential
effects of sedimentation are least noticeable in riffle areas. In fact, some of our surveys
have indicated that riffles often act as "islands" of productivity in streams impacted by
sedimentation. Duke Power Company biologists have recently tested our qualitative
collection techniques during several of their monitoring programs and have agreed with its
applicability. Qualitative collection techniques inventory the entire benthic fauna, not just
riffle fauna, and would have been more appropriate in the assessment of sediment impacts.
The samples were identified to taxonomic order only. This level of taxonomy is not
sufficient to assess the effects of sedimentation. Several studies have indicated that specific
taxa are sedimentation tolerant (ie. Baetis intercalaris) and may actually increaser in
abundance under low flow conditions.

There did not appear to be any significant effects of the penstock failure and
landslide on BMAN data collected from the Green River in 1987 (only one month after the
penstock failure) when compared to data collected from this location in 1989 (no prior data
was available). During both surveys Good bioclassifications were indicated using
mountain criteria. However, the BMAN site is located below Lake Adger near the
confluence with the Broad River. The Duke Power station is located above Lake Adger.
cc, , _ �— zea jlle Regional Office
I V E D
Wafer
Asheville Re icnal Office
f �.�lle, Plorrh Carolina

Duke Power Company
P. 0. Box 33189
Charlotte, NC 28242
iI ! Yi 1 l r . ' ' 42 "I
,see
December 12, 1989
-Ms. Ann Orr, Regional Director
Asheville Regional Office
59 Woodfin Place
P. O. Box 370
Asheville, NC 28802
Re: Tuxedo Hydro Station
File No: GAH-0308, ENV-0302, MP-16
Dear Ms. Orr:
[phone]
This letter is a follow-up to our December 4, 1989 meeting to
discuss the status of the Tuxedo Hydro Station. During the
meeting we referenced the fisheries study. Please find attached
for your information a copy of the document entitled "Summary of
Fisheries and Macroinvertebrate Monitoring Studies Conducted on
the Green River from June 1987 through September 1989." The
transmittal of this document completes the monitoring programs
Duke has performed as a result of the June 1987 flume collapse.
As we discussed, we plan to start the construction of a new flume
in early 1991. We will keep you advised concerning progress of
these repairs. Attached for your information is an article that
appeared in the Hendersonville Times concerning the replacement
of the flume.
Please contact us at any time if we can be of assistance.
Yours tr ly,
2
IDsign
. Hendricks, Engineering Manager
neering Support Division
Engineering Department
JRH/mdc:jrh162
Attachment
cc w/o attach: Central Records
M

RuKkePower wmll
�r4 yr r�1 e
• . a: � � 4iea`�i
v� f Jar
ce w k ers,flume
:•.. :`,r - 3-' r }"`5.31 � '-t,S�-4r'`+ut�"R.31�F }�'�S.S �a .C. .
tom Page b.� , �'P``` The company inspects t)e�dam as �-
�•z ,,�_ A°� all.rts structures.every two weeks; _ s , `"t z
�..� flume eight feet u`'�# 5 ..
x r' its englneers'condd , extensive
diameter "nth sa naw seven -foot r,- r + r +
' ulspectlons of }company facillhes
wooden .pipe,` she said ''i'he new - r 1? 3 � �ty ^` i
nw each yearnWO
'a
flume will be routed across a trestle
• s Y . The former Blue'Ridgeowei Co
over the huge :pit` where the land�� e lume`'id
slide occurred.bgve�t,,�he power ��+.M wnr '
`powerhouse and benstru
gan generating
plant, water will be diverted down _ - =
F ,electnc wer at"the si a June 20,
hill through two �new�,five foot 7 r 19�O srPo -
1 9. P i u r 3
r The power house, which has been
� � _
be refitted two ngw`. turbines. + >,- 6
ke . ower�7�
These _are expected to boost the!,. :��`,,, '•• k•-,, :;;,•,- „�;,,,..>.�t a � � ��
plant's 'power-producing`;'capacity ;
20 percent, from 5 me awatts to
to°�rebutld z
more than 6 megawatts 'Sheffield { d
.�
said.�? r , � � ..q .:•: t. �}.
The utility uses its hydro=electric ":
power plants to supplement power r
generation fr'oln nuclear and coal- wa r
fired plants during times of peak s s
power demand,=she said:` : �' ;t ByHARRISONMETZGER
When the 'old flume'roke; tons' Times -News stafiwriter r �. s: "N> ` �x.:.M.yh;<g'z rx
of silt fell into the Green River and : k }
j
stained the stream a muddy red for ! TUXEDO -More than two years_ after a�broken>
months after the accident. State
water pipe sent tons of earth and Water. thundering
wildlife officials later reported that 'Into Green River, Duke Power Co. has announced .
i plans to rebuild the'pipe and restart its Tuxedo A,
most fish in the stream survivedHydro-Electric
Plant... •': _ • - =- •� s�;�<�> £ '�`
the accident, and the water quality P P
The companyTans to spend $7 million to a f%A:;: z �E��'° fr •
of the river has "since improved. power plant with
new water flume and to refit the p p g ns><` `s.ar
The company will look at ways to ins for a January, 1992 restart Duke
two new turbines ary, ,
miminize erosion around the site as» r••> :a ::.:>
Sheffield said Tuesda <�;:;:��..: �•a.:�:: <::;><';<:�,"�
9 Power Co. spokesman Anne S Y•
it builds the�new flume and trestle, ; The new flume will supply water from the Lake Sum
and will oversee all designand condownstream...,;
w r . lant a mile
't da m tot:..a ml
P
in
a ct o of the project, she�'said. •
m � P ] - f the flume section o - t sec 00 foo
•-•� On June 10 98
r
...
e utilit atudi v ral
i
"tea"
ed see o v
Y 15 000 P--r ndin 'collapsed,
d se
bridge c :.�• 176 ,
nea r the U.S. g
g
toons before deciding to rebuild the d a section of a w.<� w2, >.:. �•.:;, �..;.:�5 ,�::; .r�:;«:<:;> �>:<�<>>;:;;<:«:<::::::::
cubic yards of dirt, dozens of trees an
flume, including selling or leasing river. The break also <:.,. w:< :.:<::..,
company service road into the > '<.
the plant or leaving it inoperative,,_ ti
P g:washed out a smaller water pipe that supplied Saluda
Sheffield said.:° e _ 'with Hendersonville -city `'water, leaving the town :.aHar�isonMeugerlTmes-N
"Those options were eliminated ;without water for about `24 ,hours>> ,r :'Duke Power Co. announced'plans Tuesday tt
because they would not result in ;, The company`plans to begin work onthe new flume : build anew pipe to replace this broken flume
savings to Duke ;Power or its .cus- , in spring 1991,'and hopes to complete construction in which once carried water to Tuxedo Hydro
tourers," she said:':' December of that year, Sheffield said. The utility will Electric plant. The flume broke June'10,1M
The company also considered re- .build the new flume along the same route where the sending tons of earth and water into the Gre
building only the broken section 'broken flume now lies inoperative.:. •..:
and lining the rest of the pipe with I The company will replace the old circular wooden River.
plastic, but decided against this be
F.Please see DUKE, Page 8
,., .
cause of the possibility the old pipe - -
might break again. ` Me best op-,,,!
tion was to replacethe entire sys- .
tem, she said.
About a year after the accident,
the company installed three large
valves in the dam to lower the level
of Lake Summit 'sad to `provide i
weekend releases of water for fish-.•,,,:
ermen and whitewater boaters who .1
use the river. When the new flume '
is built, the company will generate
?ower on weekends to provideN-i =
.pater for downstream users, Shef- -
Meld said. - -
The company dcee not plan 'enY
•epairs on Lake Summit dam be-,
•ausenone are needed, •she—._.—

Summary of Fisheries and Macroinvertebrate Monitoring Studies
Conducted on the Green River From June 1987.Through September 1989

INTRODUCTION
Subsequent to the June 10, 1987 penstock failure and landslide at
Duke Power Company's Tuxedo Hydro Station, field studies were
initiated to monitor the fisheries and macroinvertebrate resources
of the Green River downstream of the slide. These studies were
designed to document the fish and macroinvertebrate taxa in the
Green River immediately and one year after the landslide. Due to
the limited availability of pre -slide fishery and macroinvertebrate
data for the Green River, an assessment of the impact of the
landslide on the aquatic organisms in the Green River downstream
was not possible. Therefore, the primary objective of the study
was to monitor those aquatic resources after the event with
qualitative fisheries and quantitative macroinvertebrate studies.
METHODS
Sample Locations
Fisheries and macroinvertebrate collections were conducted at five
and three locations, respectively, in the Green River downstream of
the Tuxedo Hydro Station during June 1987 through September 1989
(Figure 1 and Table 1). The location 0.5 mi. downstream of the
hydro is designated as the 0.5 Mi. Below Hydro Location and is the
same location sampled by the North Carolina Wildlife Resources
Commission in August 1981 as part of a survey and classification .f
state -managed trout streams in District 9. The average width of
the river at this location is 28 ft., with water depth ranging from
1 to 3 ft. Habitat at this location is primarily riffle/pool.
The I-26 Bridge Location is 2.7 mi. downstream of the hydro whrr(,
Interstate 26 crosses the Green River. The river at this local:-:-n
is approximately 60 ft. wide. The water depth generally ranges
from 2 to 3 ft., however, there are several pools in this reach .p
to 5 ft. deep. This location also consists primarily of
riffle/pool habitat.
The Narrows Location is 5.2 mi. downstream of the hydro in the
gorge area commonly referred to as the "Narrows". The Green
in this area ranges in width from approximately 10 to 50 ft. any s
characterized by large cascades and deep pools up to 12 ft. deep.
This is a high gradient area with the predominant habitat feat..(�1
being house -size boulders.
The Hungry River Confluence Location is 4.0 mi. downstream of
Hydro and is located at the confluence of the Big Hungry River i.,d
the Green River. The river in this area is approximately 60 :.

IF
wide and is characterized by alternating riffles and pools. The
depth of the river generally ranges from approximately 0.5 to 1
ft., however, some of the larger pools in this area have depths up
to approximately 5 ft. This location was not an original sampling
location but was substituted for the Narrows Location after the
May 1988 sample, because of the difficulty -and safety concerns of
sampling the Narrows Location.
The Fishtop Access Area Location is the furthest downstream
sampling location and is 6.9 mi. downstream of the hydro. This
area is downstream of the area known as the "Narrows" and is the
point at which the river begins to change.from a high gradient to a
low gradient river. The river at this location is approximately 30
ft. wide and ranges in depth from approximately 1 to 3 ft. The
habitat is predominantly riffles and shallow pools, however, the
sample location terminates downstream at a large pool which has a
maximum depth of approximately 10 ft.*
Fisheries Sampling
Fisheries sampling was conducted at five locations on the Green
River from June 1987 through September 1989 (Table 1). Backpack
electrofishing gear, detonator cord, and rotenone were used either
separately or in combination, depending upon the habitat to be
sampled at each location, to collect fisheries samples (Table 2).
Backpack electrofishing was the primary sampling technique at all
locations, except the Narrows Location. Approximately 300 ft. of
stream were electrofished at each location each sample period.
Detonator cord was used to sample large, deep pools which could not
be sampled effectively using electrofishing gear. Rotenone was
used exclusively at the Narrows Location to sample small, isolated
pools.
All collected fish were identified to species, enumerated, and
measured for total length (mm). Except for museum specimens, all
fish collected by electrofishing were released alive.
Macroinvertebrate Sampling
Macroinvertebrate sampling was conducted at three locations on the
Green River from June 1987 through September 1989 (Table 1).
Macroinvertebrate sampling was not conducted at the Narrows
Location because of the lack of suitable substrate and habitat for
sampling (i.e., habitat at this location was large cascades and
deep, scoured pools). The substitute fish sampling location,
Hungry River Confluence Location, was not sampled either.
Quantitative macroinvertebrate samples (4 replicates) were
collected in riffles at each location using a Hess cylinder sampler
with a 500-um mesh bag. All benthic samples were preserved in the
field with 70 % ethanol containing 0.25 g/l rose bengal stain.

IF
Laboratory processing included, when appropriate, elutriation
(Magdych 1981), division by Folsom plankton splitter (McEwen et al.
1954), and subsampling with an Imhoff cone subsampler (Wrona et al.
1982). Quantitative samples were sorted under a 2X illuminated
magnifier, enumerated, and identified to the taxa Ephemeroptera,
Plecoptera, Trichoptera, Diptera, Odonata, Coleoptera, Megaloptera,
Decapoda, Oligochaeta, Gastropoda, and Nematoda.
Densities were tested for significant differences between years for
each season and location combination by using a non -parametric
Wilcoxon 2-sample test (Sokal and Rohlf 1981).
Laboratory analyses of macroinvertebrate samples collected during
September 1989 have not been completed, therefore, these data are
not included in this report. The 1989 data will be submitted in a
separate report.
RESULTS AND DISCUSSION
Fisheries
During the five sample periods from June, 1987 through September,
1989, the total number of fish species collected from the five
sample locations ranged from a minimum of three species at the
Narrows Location during May 1988 to a maximum of 30 species at the
Fishtop Access Area Location during June 1988 (Tables 3 through 7).
Numerically, the samples were generally dominated by minnows,
suckers, and sculpins. Trout (rainbow and/or brown trout) were
collected from all locations during all sample periods, except for
the Fishtop Access Area Location during June 1987 and the I-26
Bridge Location during May 1988 (Table 8).
For comparative purposes, the only data available for the Green
River below Tuxedo Hydro Station were collected by Bill Bonner,
District 9 Fisheries Biologist, North Carolina Wildlife Resources
Commission (NCWRC), during August 1981 (Bonner 1983). As part of a
stream survey and classification of state -managed trout streams in
fisheries District 9, Bonner sampled the same location (0.5 mi.
below the hydro) and stream length that Duke Power Company (DPC)
sampled during this study. Bonner's collections from this location
are consistent with those data collected by DPC (Tables 3 through
7). Bonner generally collected fewer total species, but more
individuals per species, with the exception of trout, whose numbers
were generally similar for both studies.
The data collected by DPC during this study indicates that the
fish community composition at the location 0.5 mi. below the hydro
is similar to that sampled by Bonner prior to the landslide. In
comparing the DPC and NCWRC data, fewer total individuals of the
nontrout species were collected in the DPC study than in the
NCWRC's survey, but whether this is a true decline or simply a

result of sampling
determine based on
collections.
bias or natural variation is difficult to
a comparison of the results from these limited
Without extensive pre -slide fisheries data, it is difficult to
precisely evaluate the impact of the slide on the Green River
fishery. Undoubtedly, an event of this magnitude results in some
immediate short-term and potentially long-term impacts on the
fishery resources in the affected area of the river.
The Green River from the Tuxedo Hydro Station to Fishtop Falls
(area just upstream of the Fishtop Access Area Location) that was
subjected to impact from the slide is classified by the NCWRC as
Class B Trout Waters (Bonner 1983). This classification category
describes Class B waters as "Intermediate quality wild trout
streams incapable of sustaining a fishery through natural
reproduction alone, except under light fishing pressure.
Supplemental stocking will be necessary in most cases." Consistent
with this classification, the NCWRC has historically stocked the
Green River at the bridge access just below the hydro and at the
Fishtop Access Area.
The monitoring conducted by DPC from 1987 through 1989 found both
adult and young -of -the -year (YOY) trout throughout the river (Table
8). Although trout spawning habitat in the Green River has probably
been reduced by the deposition of sediment, the collection of YOY
trout from all sampling locations throughout the study indicates
that natural reproduction is still occurring in the river or
tributaries downstream of the slide.
Considering the anticipated impacts to the river resulting from a
landslide, the above mentioned sedimentation is the most obvious
environmental impact. The quantity of sediment that was actually
introduced into the Green River downstream of the hydro is not
known, nor is the actual ammount that was in the river prior to the
slide. According to Bonner's physical description of his sample
location 0.5 mi. below the hydro, the streambed in August of 1981
contained light silt and heavy sand (Bonner 1983). Those are the
same streambed conditions that were observed at that location when
it was sampled by DPC in September 1989.
Macroinvertebrates
Macroinvertebrate densities (No./m') varied among sample locations
and periods (Figures 2 and 3). Macroinvertebrate densities in June
were not significantly different between 1987 and 1988 at the 0.5
Mi. Below Hydro and I-26 Bridge Locations (Table 9). There was,
however, a significant (p < 0.05) decrease in densities at the
Fishtop Access Area Location in 1988. The community composition
during June tends to be dominated by Diptera and Ephemeroptera
species (Figure 4).

Although there was a nearly significant (p = 0.06) increase in
macroinvertebrate densities at the I-26 Bridge Location in
September 1988, no significant difference in densities was found
either at the 0.5 Mi. Below Hydro or Fishtop Access Area Locations
(Table 9). No taxonomic group clearly dominated the community
composition at any location during September 1987 or 1988 (Figure
5). Recruitment of new larvae into the macroinvertebrate community
by late summer is probably responsible for a more diverse community
by September at all locations.
The impact of the landslide on the stream invertebrates in the
the Green River is difficult to evaluate. Comparable pre -slide
macroinvertebrate data for the Green River are not available.
Based on knowledge of stream invertebrate communities in the
region, however, the Green River data show a macroinvertebrate
community that is less diverse and less abundant than other
regional streams. Post -slide data suggest that the invertebrate
communities at the sampled locations continue to be reduced in
numbers and diversity from expected levels.
Although there was a statistically significant decrease in
macroinvertebrate density at the Fishtop Access Area Location
between the 1987 and 1988 sampling periods, all other
density-locationcomparisons were not significant. Interpretation
of these data suggests there has been little change in the reduced
macroinvertebrate densities at the three sampling locations during
the 15 months following the landslide. It is anticipated that
invertebrate densities and taxa diversity will increase through
time. The existing invertebrate community continues to be a food
resource for the fish community.

PF
LITERATURE CITED
Bonner, W. R. 1983. Survey and classification of
state -managed trout streams, district 9. Mountain Fisheries
Investigations, Federal Aid in Fish Restoration Project
F-24S. Final Report. North Carolina Wildlife Resources
Commission, Division of Inland Fisheries. Raleigh, NC.
326 p.
Magdych, W. P. 1981. An efficient, inexpensive elutriator
design for separating benthos from sediment samples.
Hydrobiologia 85: 157-159.
McEwen, G. F.; Johnson, M. W.; Folsom. T. R. 1954.
Statistical analysis of the performance of the Folsom
plankton sample splitter, based upon test observations.
Arch. Meterol. Geophys. Bioclimatol. Serv. A. 6: 502-527.
Sokal, R. R.; Rohlf, F. J. 1981. Biometry. 2nd ed. W. H.
Freeman and Company, San Francisco. 859 p.
Wrona, F. J.; Culp, J. M.; Davies, R. W. 1982. Macroin-
vertebrate subsampling: a simplified apparatus and
approach. Can. J. Fish. Aquat. Sci. 39: 1051-1054.

Table 1. Locations and dates of fisheries and macroinvertebrate
collections in the Green River downstream of Tuxedo Hydro
Station.
SAMPLE LOCATION SAMPLE DATE
DATA COLLECTED
0.5 MI. BELOW HYDRO JUN
1987
FISHERIES
MACROINVERTEBRATE
SEP
1987
FISHERIES
MACROINVERTEBRATE
MAY
1988
FISHERIES
JUN
1988
FISHERIES
MACROINVERTEBRATE
SEP
1988
MACROINVERTEBRATE
SEP
1989
FISHERIES
MACROINVERTEBRATE
I-26 BRIDGE
JUN
1987
FISHERIES
MACROINVERTEBRATE
SEP
1987
FISHERIES
MACROINVERTEBRATE
MAY
1988
FISHERIES
JUN
1988
FISHERIES
MACROINVERTEBRATE
SEP
1988
MACROINVERTEBRATE
SEP
1989
FISHERIES
MACROINVERTEBRATE
NARROWS
JUN
1987
FISHERIES
SEP
1987
FISHERIES
MAY
1988
FISHERIES
HUNGRY RIVER CONFLUENCE
JUN
1988
FISHERIES
SEP
1989
FISHERIES
FISHTOP ACCESS AREA
JUN
1987
FISHERIES
MACROINVERTEBRATE
SEP
1987
FISHERIES
MACROINVERTEBRATE
MAY
1988
FISHERIES
JUN
1988
FISHERIES
MACROINVERTEBRATE
SEP
1988
MACROINVERTEBRATE
SEP
1989
FISHERIES
MACROINVERTEBRATE

Table 2. Fisheries sampling techniques by location and sample
period.
Sample Location Sample Date Sampling Technique(s)
0.5 Mi. Below Hydro Jun
1987
Electrofishing
Sep
1987
Electrofishing
May
1988
Electrofishing
Jun
1988
Electrofishing
Sep
1989 :
Electrofishing
I-26 Bridge Jun
1987
Electrofishing
Detonator Cord
Sep
1987
Electrofishing
Detonator Cord
May
1988
Electrofishing
Jun
1988
Electrofishing,
Sep
1989
Electrofishing
Narrows Jun
1987
Detonator Cord
Rotenone
Sep
1987
Detonator Cord
Rotenone
May
1988
Detonator Cord
Hungry River Confluence Jun
1988
Detonator Cord
Sep
1989
Electrofishing
Fishtop Access Area Jun
1987
Electrofishing
Sep
1987
Electrofishing
Detonator Cord
May
1988
Electrofishing
Detonator Cord
Jun
1988
Electrofishing
Detonator Cord
Sep
1989
Electrofishing
Detonator Cord

Table 3. Species and numbers of fish collected by DPC from four
sampling locations on the Green River during June 17-18,
1987 and by NCWRC from one sampling location on the Green
River on August 5, 1981.
SPECIES LOCATION
NCWRC1 HYDR02 -I-263 NARROWS4 FISHTOPS
Rainbow trout
4
22
2
3
0
Brown trout
0
0
1
0
0
Stoneroller
65
24
1
1
3
Bluehead chub
0
0
0
33
2
Fieryblack shiner
0
0
0
0
9
Saffron shiner
0
1
0
0
0
Mirror shiner
2
12
16
7
1
Blacknose dace
121
31
18
0
0
White sucker
0
0
5
17
3
Northern hog sucker
3
2
0
0
3
Silver redhorse
0
0
0
0
3
Striped jumprock
13
2
0
0
1
Margined madtom
0
0
0
0
3
Rock bass
0
1
1
0
0
Redbreast sunfish
0
0
0
0
3
Seagreen darter
0
0
0
0
2
Mottled sculpin
0
0
7
8
4
Total species
6
8
8
6
12
1 NCWRC data from 0.5 Mi. Below Hydro Location sampled on August
5, 1981 (Bonner 1983)
DPC data from 0.5 Mi. Below Hydro Location
3 DPC data from I-26 Bridge Location
4 DPC data from Narrows Location
5 DPC data from Fishtop Access Area Location

Table 4. Species and numbers of fish collected by DPC from four
sampling locations on the Green River during August
31-September 2, 1987 and by NCWRC from one sampling
location on the Green River on August 5, 1981.
SPECIES LOCATION
NCWRC1 HYDR02 I-263 NARROWS4 FISHTOP5
Rainbow trout
4
3
2
9
1
Stoneroller
65
35
35
5
25
Santee Chub
0
0
0
0
2
Bluehead chub
0
3•
0
0
30
Greenf in shiner
0
0
0
0
1
Whitetail shiner
0
0
3
1
1
Spottail shiner
0
0
0
0
3
Fieryblack shiner
0
0
0
0
42
Mirror shiner
2
46
32
36
10
Blacknose dace
121
11
35
1
0
Creek chub
0
0
0
2
0
White sucker
0
0
1
5
0
Northern hog sucker
3
2
7
0
4
Silver redhorse
0
0
0
0
5
Suckermouth redhorse
0
0
0
0
1
Smallfin redhorse
0
0
0
12
1
Striped jumprock
13
1
3
0
9
Snail bullhead
0
0
0
0
3
Flat bullhead
0
1
0
0
0
Margined madtom
0
0
0
0
16
Rock bass
0
4
2
0
0
Readbreast sunfish
0
1
0
0
5
Bluegill
0
0
1
0
0
Largemouth bass
0
0
0
0
2
Fantail darter
0
0
0
0
1
Seagreen darter
0
0
0
0
3
Piedmont darter
0
0
0
0
6
Mottled sculpin
0
0
24
12
3
Total species
6
10
11
9
22
z NCWRC data from 0.5 Mi. Below Hydro Location sampled on August
5, 1981 (Bonner 1983)
DPC data from 0.5 Mi. Below Hydro Location
3 DPC data from I-26 Bridge Location
4 DPC data from Narrows Location
5 DPC data from Fishtop Access Area Location

Table 5. Species and numbers of fish collected by DPC from four
sampling locations on the Green River during May 9-10,
1988 and by NCWRC from one sampling location on the Green
River on August 5, 1981.
SPECIES LOCATION
NCWRC1 HYDR02 I-263 NARROWS4 FISHTOPS
Rainbow trout
4
2
0
3
3
Stoneroller
65
30.
11
0
43
Bluehead chub
0
2
0
0
27
Golden shiner
0
0
0
0
1
Whitetail shiner
0
0
1
0
5
Yellowfin shiner
0
0
0
0
1
Fieryblack shiner
0
0
0
0
192
Mirror shiner
2
10
2
2
24
Blacknose dace
121
9
28
0
0
White sucker
0
0
6
0
1.
Northern hog sucker
3
7
2
0
6
Silver redhorse
0
0
0
0
22
Smallfin redhorse
0
0
1
0
i
Striped jumprock
13-
1
0
0
d
Snail bullhead
0
0
0
0
'.
Flat bullhead
0
0
0
0
Margined madtom
0
0
0
0
Rock bass
0
2
2
0
0
Redbreast sunfish
0
1
2
0
6
Bluegill
0
0
2
0
a
Tessellated darter
0
0
0
0
Seagreen darter
0
0
0
0
.�
Piedmont darter
0
0
0
0
Mottled sculpin
0
0
20
1
Total species
6
9
11
3
1 NCWRC data from 0.5 Mi. Below Hydro Location sampled on Auqus-
5, 1981 (Bonner 1983)
2- DPC data from 0.5 Mi. Below Hydro Location
3 DPC data from I-26 Bridge Location
4 DPC data from Narrows Location
5 DPC data from Fishtop Access Area Location

Table 6. Species and numbers of fish collected by DPC from four
sampling locations on the Green River during June 13-14,
1988 and by NCWRC from one sampling location on the Green
River on August 5, 1981.
SPECIES LOCATION
HUNGRY R.4
NCWRC1 HYDRO I-263 CONFLUENCE FISHTOP5
Rainbow trout
4
3
7
11
5
Brown trout
0
1
0
1
4
Stoneroller
65
11
74
26
19
Rosyside dace
0
0
0
0
2
Thicklip chub
0
0
0
0
1
Bluehead chub
0
0
0
0
32
Golden shiner
0
1
0
0
0
Greenfin shiner
0
0
0
0
5
Whitetail shiner
0
0
0
0
6
Spottail shiner
0
0
0
0
11
Yellowfin shiner
0
0
0
0
2
Whitefin shiner
0
0
0
0
1
Fieryblack shiner
0
0
0
0
26
Mirror shiner
2
39
103
18
17
Blacknose dace
121
5
51
2
0
White sucker
0
0
11
1
1
Northern hog sucker
3
16
17
8
1
Silver redhorse
0
0
0
0
1
Suckermouth redhorse
0
0
0
0
2
Smallfin redhorse
0
1
0
2
2
Striped jumprock
13
10
2
1
8
Snail bullhead
0
0
0
0
2
Flat bullhead
0
0
0
0
1
Margined madtom
0
0
0
0
8
Rock bass
0
1
6
0
0
Redbreast sunfish
0
2
9
0
11
Bluegill
0
0
1
0
4
Largemouth bass
0
1
2
0
1
Fantail darter
0
0
0
0
3
Tessellated darter
0
0
0
0
3
Seagreen darter
0
0
0
0
16
Piedmont darter
0
0
0
0
12
Mottled sculpin
0
0
50
1
18
Total species
6
12
12
10
30
1 NCWRC data from 0.5 Mi. Below Hydro Location sampled on August
5, 1981 (Bonner 1983)

Table 6. Continued
2 DPC data from 0.5 Mi. Below Hydra Location
3 DPC data from I-26 Bridge Location
4 DPC data from Hungry River Confluence Location
S DPC data from Fishtop Access Area Location

Table 7. Species and numbers of fish collected by DPC from four
sampling locations on the Green River during September
11-13, 1989,and by NCWRC from one sampling location on
the Green River on August 5, 1981.
SPECIES LOCATION
HUNGRY R.
NCWRC1 HYDRO I-263 CONFLUENCE4 FISHTOPS
Rainbow trout
4
8
5
7
1
Brown trout
0
2
2
1
0
Stoneroller
65
24
24
58
31
Rosyside dace
0
0
0
0
1
Santee chub
0
0
0
0
1
Bluehead chub
0
2
1
0
36
Greenfin shiner
0
0
0
0
2
Whitetail shiner
0
0
5
1
0
Spottail shiner
0
0
0
0
14
Yellowfin shiner
0
0
0
0
3
Fieryblack shiner
0
0
0
0
49
Mirror shiner
2
46
33
40
34
Blacknose dace
121
40
7
1
0
White sucker
0
0
8
8
4
Northern hog sucker
3
14
16
22
7
Silver redhorse
0
0
0
0
13
Striped jumprock
13
0
2
9
9
Margined madtom
0
0
0
0
12
Rock bass
0
3
3
2
0
Redbreast sunfish
0
0
1
2
5
Largemouth bass
0
0
1
0
2
White crappie
0
0
0
0
2
Tessellated darter
0
0
0
0
8
Seagreen darter
0
0
0
0
14
Piedmont darter
0
0
0
0
3
Mottled sculpin
0
0
22
16
3
Total species
6
8
14
12
22
s NCWRC data from 0.5 Mi. Below Hydro Location sampled on August
5, 1981 (Bonner 1983)
2 DPC data from 0.5 Mi. Below Hydro Location
3 DPC data from I-26 Bridge Location
4 DPC data from Hungry River Confluence Location
5 DPC data from Fishtop Access Area Location

Table 8. Numbers of trout collected from the Green River by
locations and sample periods.
Sample
Tota11
Sample Location
Date
RBT
0.5 Mi. Below Hydro
Jun 1987
22
Sep 1987
3
May 1988
2
Jun 1988
3.
Sep 1989
8
I-26 Bridge
Jun 1987
2
Sep 1987
2
May 1988
0
Jun 1988
7
Sep 1989
5
Narrows
Jun 1987
3
Sep 1987
9
May 1988
3
Hungry River Confluence
Jun 1988
11
Sep 1989
7
Fishtop Access Area
Jun 1987
0
Sep 1987
1
May 1988
0
Jun 1988
5
Sep 1989
1
1 Rainbow Trout
2 Brown Trout
No.
Tota12
No.
YOY
BRT
YOY
2
0
0
2
0
0
0
0
0
0
1
1
3
2
0
2
1
1
1
0
1
0
0
0
0
0
0
1
2
0
0
0
0
4
0
0
3
0
0
3
1
0
1
1
0
0
0
0
0
0
0
0
3
0
1
4
0
0
0
0

Table 9. Green River macroinvertebrate density compared
between years (four replicates/ location/ season)
using a non -parametric Wilcoxon 2-sample test.
June 1987-1988
Wilcoxon
Location Z Statistic Probability Level
0.5 Mi. Below Hydro 1.59 0.11
I-26 Bridge 1.30 0.19
Fishtop Access Area 2.16 0.03
September 1987-1988
Wilcoxon
Location Z Statistic Probability Level
0.5 Mi. Below Hydro 0.43 0.67
I-26 Bridge 1.88 0.06
Fishtop Access Area 1.01 0.31

Figure 1. Fisheries and macroinvertebrate sampling locations on the Green River downstream
of Tuxedo Hydro Station.
HUNGRY RIVER
CONFLUENCE-,
1-26 BRIDG
,26
0.5 Mi. BELOW
HYDRO ----
TUXEDO
POWERHOUSE
WOODEN ;'
PENSTOCK--,
`LAKE
SUMMIT
NARROWS
FISHTOP
ACCESS AREA
MN - SAMPLING LOCATIONS FOR FISHES
♦ - SAMPLING LOCATIONS FOR
MACROINVERTEBRATES
LAKE
ADGER-,
2-"q,-ACCESS
BIG ROCK
AREA
I
DUKE POWER COMPANY
TUXEDO PROJECT - GREEN RIVER
BIOLOGICAL SAMPLING STATIONS
i „ o i
SCALE IN MILES

MONTH=DUNE
DENSITY
15111
Hill
13111
12111
11111
11181
9111
Bill
7111
bill
5811
Ml
3118
2111
fill
8
YEAR
A, HYDRO B. I-2b C. FISHTOP LOCATION
Figure 2. Benthic macroinvertebrate density (No/mz) in riffle areas
at three Green River locations; 0.5 Mi. Below Hydro, I-26
Bridge, and Fishtop Access Area in June 1987 and 1988.
Bars represent means of four Hess samples with lines indicat-
ing 95°10 confidence limits.

MONTH--SEPT,
DENSITY
15111
1011
13111
12111
iilll
illll
9111
8111
7111
bill
5111
MI
3111
2111
till
1
YEAR
A. HYDRO B. I-2b C, FISHTOP LOCATION
Figure 3. Benthic macroinvertebrate density (No/mz) in riffle areas
at three Green River locations; 0.5 Mi. Below Hydro, I-26
Bridge, and Fishtop Access Area in September 1987 and 1988.
Bars represent means of four Hess samples with lines indicat-
ing 95% confidence limits.

MONTH=JUKE
JUN87
LOCATION
TAXON ® COLEOPTERA ® DIPTERA ® EPHEMEROPTERA
6EX] OTHERS ® PLECOPTERA ® TRICHOPTERA
Figure 4. Percent composition, by taxon, of benthic macroinvertebrate density in riffle areas at
three Green River locations; 0.5 Mi. Below Hydro, I-26 Bridge, and Fishtop Access Area
for June 1987 and 1988.

MONTH=SEPT,
SEP87
LOCATION
TAXON ® COLEOPTERA ® DIPTERA ® EPHEMEROPTERA
® OTHERS ® PLECOPTERA � TRICHOPTERA
Fi,;uro I). Percent. comoosition, r,v taxon, of benthic macro invertebrate density in riffle areas at
t hrt•e i,reen P i ver r r,nS ; 0. 5 M1 . Below Hydro, 1 -26 Bridge, and Fi shtop Access Area
tt)r '„•j,temt,err 19N7 jri�; 1OWi.

TUXEDO HYDRO PROJECT
GREEN RIVER
NCDEHNR AND DUKE POWER COMPANY
TUXEDO PROJECT

\26
TUXEDO
POWERHOUS
WOODEN
PENSTOCK ---,.,,
I
AM
`LAKE
SUMMIT
at
h®
'FISHTOP
ACCESS AREA
L! y
LAKE
ADGEI
BIG ROCK
ACCESS AREA
f�
DUKE POWER COMPANY
TUXEDO PROJECT - GREEN RIVER
GENERAL AREA
SCALE IN MILES

PFFFr

DUKE POWER
COMMITMENTS TO MINIMIZE AND DOCUMENT
THE ENVIRONMENTAL EFFECTS OF THE
EMBANKMENT SLIDE OF JUNE 109 1987
• SLIDE TO BE REPAIRED AND STABILIZED
• PROVIDE FOR SEDIMENT REMOVAL FROM
GREEN RIVER
• PROVIDE COOL WATER THROUGH
THE RESERVOIR LEVEL CONTROL SYSTEM
• MONITOR DOWNSTREAM TEMPERATURES
• OBTAIN BIOLOGICAL SAMPLES TO
MONITOR AQUATIC LIFE
• PROVIDE UPDATE REPORTS TO NCDEHNR
TUXEDO PROJECT

O
OFRSO�
r
WOODEN
PENSTOCK
DAM
POWERHOU
SURGE TANK
SLID
ROCK WEIR,
SEDIMENT REMOVAL
SLOPE STABILIZATION/
EROSION CONTROL
AT SLIDE
THREE 24" PIPES FOR N
RESERVOIR CONTROL
DUKE POWER COMPANY
TUXEDO PROJECT - GREEN RIVER
DAM AND POWERHOUSE AREA
600 0 600 1200 low 2400
SCALE IN FEET

PIF7--1 IF
MAJOR ACTION ITEMS FOLLOWING
THE TUXEDO PROJECT
EMBANKMENT SLIDE
(SHEET 1 OF 2)
• JUNE 10, 1987 : SLIDE OCCURS
• JUNE 10, 1987 : DUKE BEGINS SLOPE STABILIZATION.
WORK COMPLETED BY EARLY JULY.
• JUNE 17, 1987 DUKE, WITH NCWRC, TAKES FIRST
OF FIVE BIOLOGICAL SAMPLES
FROM GREEN RIVER BELOW THE
SLIDE.
• JUNE 21, 1987 ROCK WEIR COMPLETED AND FIRST
SEDIMENT REMOVAL FROM THE
RIVER BEGINS. REMOVAL WORK
CONTINUES THROUGH 6/88.'
(CONT.)
TUXEDO PROJECT JSGV

I
MAJOR ACTION ITEMS FOLLOWING
THE TUXEDO PROJECT
EMBANKMENT SLIDE
JUNE 1987
JULY 931987
(SHEET 2 OF 2)
DIESEL PUMPS, THEN SIPHON
SYSTEM, INSTALLED TO
CONTROL LAKE LEVELS AND
PROVIDE COOL WATER
DOWNSTREAM. LATER
REPLACED BY 24" PIPES
FIRST OF FOUR UPDATE
REPORTS TO NCDEHNR
• NOV. 1989 : FINAL REPORT TO NCDEHNR
TUXEDO PROJECT

SLIDE REPAIR AND STABILIZATION
(FOLLOWING EMBANKMENT SLIDE OF 6/10/87)
• SEDIMENT BASIN AND SEDIMENT FENCES
(6/11/87)
• RIP -RAP ON SLOPE (6/87)
• SEEDING OF SLOPE (6/87)
TUXEDO PROJECT

SEDIMENT REMOVAL FROM
GREEN RIVER
(FOLLOWING EMBANKMENT SLIDE OF 6/10/87)
® ROCK WEIR TRAP AND DRAGLINE
POSITIONED
• SEDIMENT REMOVED:
TOTAL OF
1,200
cu yd
3,700
cu yd
4,400
cu yd
4,600
cu yd
TUXEDO PROJECT
: BY
7/9/87
:BY
10/26/87
: BY
3/4/88
: BY
6/27/88

PROVIDING COOL WATER DOWNSTREAM
THROUGH THE RESERVOIR LEVEL
• 6/87
• 6/87
• 7/87
CONTROL SYSTEM
(FOLLOWING EMBANKMENT SLIDE OF 6/10/87)
- LAKE FILLS AND SPILLWAY
OVERTOPS - NEED FOR A BETTER CONTROL
OF LAKE LEVEL AND COOLER FLOW TO
RIVER
- PUMPING SYSTEM ESTABLISHED TO
CONTROL LAKE LEVEL AND PROVIDE
COOLER WATER TO RIVER. FLOW FROM
40 FT. DEEP IN LAKE
- PUMP SYSTEM REPLACED BY SIPHON SYSTEM AT
40 FT. DEPTH
- SIPHON SYSTEM REPLACED BY PIPES DRAWING
WATER FROM 40 FT. DEPTH
TUXEDO PROJECT

BIOLOGICAL SAMPLING OF GREEN RIVER
(FOLLOWING EMBANKMENT SLIDE OF 6/10/87)
• FISHES, MAC ROINVERTEBRATES MONITORED
• FIVE SAMPLING STATIONS:
HYDRO
1-26
NARROWS (FISH ONLY) FISHTOP
HUNGRY RIVER CONFLUENCE
• SAMPLES TAKEN
6/87
9/87
TUXEDO PROJECT

UPDATE REPORTS TO
NCDEHNR ON GREEN RIVER
(FOLLOWING EMBANKMENT SLIDE OF 6/10/87)
• JULY 95 1987
• OCTOBER 26, 1987
• MARCH 4, 1988
• JUNE 279 1988
TUXEDO PROJECT

HUNGRY RIVER
CONFLUENCE
1-26 BRIDGE
'26
0.5 MI. BELOW
HYDRO ---
TUXEDO
POWERHOUSE
WOODEN ,
PENSTOCK---,,.,,e
AM
LAKE
SUMM I T
4�,
ts
ar
NARROWS Q®
'FISHTOP
ACCESS AREA
■ - SAMPLING LOCATIONS FOR FISHES
- - SAMPLING LOCATIONS FOR
MACROINVERTEB RATES
LAKE
ADGEI
BIG ROCK
ACCESS AREA
DUKE POWER COMPANY
TUXEDO PROJECT - GREEN RIVER
BIOLOGICAL SAMPLING STATIONS
i v o I
SCALE IN MILES

NUMBER OF FISH SPECIES
COLLECTED BY DATE FROM FOUR
SAMPLING STATIONS ON
GREEN RIVER
DATE
HYDRO
I-26
NARROWS
FISHTOP
6/87
8
8
6
12
9/87
10
11
9
22
5/88
9
11
3
22
6/88
12
12
10
30
9/89
8
14
12
22
TUXEDO PROJECT

NUMBER OF TROUT (RAINBOW AND
BROWN *) COLLECTED FROM FOUR
SAMPLING STATIONS ON
DATE HYDRO
22
3
2
4
10
GREEN RIVER
1-26
3
2
0
7
7
NARROWS
3
9
3
12
8
* 89% ARE RAINBOW TROUT
TUXEDO PROJECT
FISHTOP
0
1
3
9
1
0

State of North Carolina
Department of Environment, Health, and Natural Resources
Asheville Regional Office
James G. Martin, Governor Ann B. Orr
William W. Cobey, Jr., Secretary Regional Manager
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
December 5, 1989
MEMORANDUM
TO: Jim Overton
Ecosystems Analysis Unit
FROM: Forrest R. West 1
Regional Water Q upervisor
SUBJECT: Duke Power Project - Green River
Polk County
Attached is the summery information concerning a meeting on this
project held December 4, 1989. Because data was not collected prior to
the sedimentation loss into the river, it is difficult to determine the
exact impact of the catastrophic event. As a result, Duke Power has
concluded that little change in fish population has occurred following
the June 1987 event. The studies and efforts undertaken by Duke Power
on this issue were initiated on request of the Regional Office. Duke
Power has been very responsive in their efforts and have continued to
keep us informed of their progress. No additional monitoring is
planned for this site in the near future. Duke Power does plan to
reconstruct the flume line beginning February 1, 1991.
This information is
want to discuss it
hesitate to let me
FRW:1s
Enclosure
xc: Roy M. Davis
Gary T. Tweed
provided for your review and consideration. If you
further or if you have any questions, please to not
know.
Interchange Building, 59 Woodfin Place, Asheville, N.C. 28801 • Telephone [phone]
An Equal Opportunity Affirmative Action Employer

P. 0. BOX 3 B
August 31, 1987
IDUKE POWER COMPANY
OENEIZAL OFFICES
422 SOUTH CHURCH STREET
CHARLO rrE, N. C. 28242
Mr. David Spain
North Carolina. Department of Natural
Resources and Community Development
59 Woodfin Place
Asheville, North Carolina 28801
Re: Tuxedo Hydro Station
Fill Collapse - Environmental Response
File No: MP-16
Dear Mr. Spain:
TELEPHONE: AREA 704
3 73-40 11
RECE0i-"t,-
5EP t"66
ADh�. NISTRA -ION
ASHE' ;LLE 0 ". - ,
This letter is an update to my July 9, 1987 letter concerning
Duke Power's ongoing activities at Tuxedo Hydro Station.
The status of our effortsito minimize the environmental impact of
the slide is as follows: ;
1. Duke Power completed removal of the initial sediment load at
the Tuxedo powerhouseiat the end of July. High water since
then has deposited additional silt as well as cut a small
notch in the rock -rubble dam at the powerhouse. Duke
construction personnel, returned to the site August 18 to
remove additional silty and repair the rock -rubble dam. They
will demobilize and leave the site August 25. Duke Power
will continue to remolTe silt on a periodic basis as it moves
down to the powerhouse area.
2. An estimated 80% of the slide area is grassed. We will have
the bare areas dressed and reseeded this fall. Grassing of
the sediment in the river was partially successful. Silt
transported from this area will be removed at the powerhouse.
3. There is minor erosion in the fill area. We will install hay
bales at the upstream and downstream ends of the concrete box
culvert to prevent further erosion.
4. Duke will conduct fisheries and macroinvertebrate sampling
August 31-September 2, 1987, March/April, 1988, and June,
1988. Sampling will be consistent with that conducted during
the initial. June 17-18 sampling with respect to techniques 1
and location. Study reports will be sent to you when they
are completed. We will advise you concerning these 1988
sampling,dates when they are firmed up.
i

David Spain
st 26, 1987
Page 2
5. The siphons continue to operate satisfactorily. We have
recorded temperatures in the 68-73 F. degree range at the
bridge below the powerhouse.
Duke Power will continue its efforts to mitigate environmental
damage resulting from the collapse of the fill. Additional
update reports will be sent to you as significant events occur.
S. B. Hager, Chief Engineer
Civil/Enviro'nmental Division
N ji- A-,
By: J. R. Hendricks
Principal Engineer
RFE/kmp
cc: Central Records
T. F. Talbert
RFE003

State of North Carolina
by Department of Natural Resources and Community Development
Asheville Regional Office
James G. Martin, Governor S. Thomas Rhodes, Secretary'
August 6, 1987
Mr. Jim Hendricks, Principal Engineer
Duke Power Company
422 South Church Street
Charlotte, North Carolina 28242
Dear Jim:
I want to let you know how much I appreciate Duke Power's response
to the slide under the wooden flume near the Tuxedo Hydro Station.
Duke's quick actions limited the damage which resulted and I thank you.
Please continue to maintain erosion control at the slide area, the
siphons and clean the power house sediment trap as necessary. We would
very much like to receive reports of fish and benthic studies which you
will perform on the Green River this summer and next spring.
- Again, I thank you for all your Company has done in working with
this Department. Please feel free to call on me anytime you have need
to discuss this or any other matter.
Regards,
lliZe�
David R. Spain, Regional Manager
Asheville Regional Office
DRS : RMD : is
bcc: Roomy l�avi�/lFlarrt moral-1 `Pv�
Richard Phillips
Butch Kisiah
Jim Borawa
4 Interchange Building, 59 Woodfin Place, P.O. Box 370, Asheville, N.C. 28802-0370 • Telephone [phone]
An Equal Opportunity Affirmative Action Employer

5
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Page 2
To trap and remove sediment that is moving downstream, a small rock weir has
been placed in the river near the Powerhouse. A clamshell has been on site
removing material from the area since Sunday, June 21, 1987. To date, 113
truck loads (20 ton capacity) or approximately 10 to 15% of the material that
entered the river has been removed. We plan to continue with this operation
for an undefined period. We will continue to review the amounts of sediment
collected and removed from the pool.
We plan to repeat the fish and benthic sampling at the four above noted
locations during the warmer part of the summer and next spring. The spring
sampling will focus on reproduction of the wild trout.
We will contact your office if there are significant changes in the situation.
We are appreciative of the cooperation and help extended by the various State
Agencies in addressing this situation.
Very truly yours,
S B Hager; Chief Engineer
Civil/Environmental Division
By: J R Hendricks
Principal Engineer
GAG/fh/G77-1/2
cc: Central Records
G A Galleher
T F Talbert

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State of North Carolina
Department of Natural Resources and Community Development
Asheville Regional Office
James G. Martin, Governor S. Thomas Rhodes, Secretary
DIVISION OF ENVIRONMENTAL MANAGEMENT
WATER QUALITY SECTION
June 17, 1987
MEMORANDUM
TO: David Spain
Richard Phillips
Butch Kisiah
Roy M. Davis
Forrest R. Westall
FROM: Michael R. Parkerxitp
In a telephone conversation between Jim Hendricks, Duke Power
Company and Mike Parker, Division of Environmental Management on June
16, 1987, Mr. Hendricks advised that Duke Power Company personnel will
meet with Jim Borawa, N. C. Wildlife Resources Commission on June 17,
1987. They will walk up river from the power house to the slide area.
Their purpose is to evaluate the effects of the slide on the river
fishery and fauna.
Additionally, Duke Power Company, Engineering Section Personnel,
will auger holes in the delta formed in the river and take measurements
to determine the volume of material formed by the delta. Also, they
will look at the river bed and stability of the delta to determine if
the material can be removed. If Duke Power Company construction
personnel determine that they cannot remove the material, a private
contractor will be asked to evaluate and bid on its removal, if
possible.
Slope stabilization is continuing and they anticipate sowing grass
by the end of the week or the first of next week. Slopes will be
maintained at 2.5:1 and rip -rap will be placed -from the end of the box
culvert to the river to reduce sediment transfer.
Mr. Hendricks is to call the afternoon of June 17, 1987, for an
update.
Interchange Building, 59 Woodfin Place, P.O. Box 370, Asheville, N.C. 28802-0370 • Telephone [phone]
An Equal Opportunity Affirmative Action Employer

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P. 0. BOX 33189
June 27, 1988
DUKE POWER COMPANY
GENERAL OFFICES
422 SOUTH CHURCH STREET
CHARLOTTE, N. C. 28242
Mr. David R. Spain, Regional Director
Asheville Regional Office
North Carolina Department of Natural Resources
and Community Development
59 Woodfin Place
P. O. Box 370
Asheville, North Carolina 28802
Re: Tuxedo Hydro Station
File No: GAH-0308
Dear Mr. Spain:
This letter is an update to our March 4, 1988
TELEPHONE: AREA 704
373-4011
t CCEi V-" --'.
Ju �0
ADMNISMA' 10N
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transmittal.
Since that time, Duke has completed a number of activities:
- In the fifth sediment removal operation at Tuxedo Hydro
Station occurring April 18-19, 1988, sixteen truck loads of
sediment were removed from the Green River. The total
volume of sediment removed from the river since the slide
occurred is an estimated 4,600 cubic yards.
- The eight 6" diameter siphons have been replaced with three
24" diameter pipes drawing water 40' below the dam crest.
Since water began flowing through the pipes May 16, 1988,
plant personnel have been able to control the elevation of
Lake Summit.
- A summary of the third scheduled sampling trip to evaluate
the effect of the June, 1987 slide on the fishery of the
Green River, conducted May 9-10, 1988, is attached. With
your concurrence, the sampling location at the Narrow's was
moved just upstream to allow future data to be obtained
without the use of destructive techniques. The summary
discusses this in more detail.
- The fourth and final fisheries sampling was conducted
June 13-14, 1988. A summary of the fourth trip and a formal
report on the sampling program will be forwarded upon
completion. Preliminary indications are that there were
immediate short term effects on the Green River and possibly
a reduction in the number of trout. However, based on the

June 27, 1988
Page 2
sampling, there is presently a good, balanced, indigenous
fish community with adult and young of the year trout
collected from all sampling locations.
In addition, the contractor began installing the 12" diameter
water main for the town of Saluda across the slide area on June
13, 1988.
We will continue to keep your office apprised of any significant
changes in the situation at Tuxedo.
Very truly yours,
S. B. Hager, Chief Engineer
Civil/Environmental Division
By: J. Hendricks
Principal Engineer
HLL/kmp:HLL35
Attachment
cc w/atta: R. D. Harrell
T. F. Talbert
G. A. Galleher
Central Records

SPRING 1988 GREEN RIVER SAMPLING
The following is a summary of the third (spring sample) of four
scheduled sampling trips to evaluate the effects of the 1987
penstock failure at Tuxedo Hydro on the fishery of the Green
River downstream. Sampling was conducted,during May 9-10, 1988.
The fourth and final fisheries sampling will be conducted during
June 13-14, 1988.
Sampling was conducted at the same four locations established
during June 1987 (0.5 mi below the hydro, I-26 bridge crossing,
the Narrows, and Fishtop Access Area). Backpack electrofishing
was employed at all locations, and detonator cord sampling was
conducted at the Narrows and Fishtop Access Area locations.
water levels were higher than during the previous two sampling
periods.
Except for the Narrows location, the number of individual species
collected at each location during the May period was similar to
the results from the September 1987 sample period:
SAMPLE LOCATION
SAMPLE PERIOD
SPECIES
RBT1 BT2 COLLECTED
0.5 mi below hydro Jun
1987
22
0
8
Sep
1987
3
0
10
May
1988
2
0
9
I-26 bridge crossing Jun
1987
2
1
8
Sep
1987
2
0
11
May
1988
0
0
11
Narrows Jun
1987
3
0
6
Sep
1987
5
0
9
May
1988
3
0
3
Fishtop Access Area Jun 1987 0 0 12
Sep 1987 1 0 22
May 1988 0 3 22
1 Rainbow trout
2 Brown trout
During May, trout were collected from all locations except the
I-26 location; however, high water conditions hindered sampling
efficiency at this location.

l
Streambed silt deposits noted during previous sampling periods at
the location 0.5 mi below the hydro were absent in May. The
coarser sand deposits appear to be moving through the system
also, and the streambed and substrate look good. Higher instream
discharges expected as a result of the recent installation of
three valved 24-in. pipes at the dam should facilitate the
flushing of the remaining coarse material in the stream.
Water temperatures during the May sampling period ranged from
13.5°C (56.3 0F) at the Narrows to 15.5°C (59.5°F) at the Fishtop
Access Area. As a result of the recently installed 24-in.
discharge pipes at the dam, water temperatures in the Green River
downstream of the hydro should be maintained well within trout
habitat criteria throughout the summer of 1988.
As a result of our sampling efforts at the Narrows location
during June and September 1987 and May 1988, I recommend that we
drop this location from our scheduled June sample and substitute
an alternate upstream location. We have located an area just
upstream of the high gradient Narrows area where we will be able
to sample with our conventional backpack electrofishing
techniques and obtain a more indicative sample for this area of
the river. This will allow us to obtain data for the area
without the use of the destructive techniques (detonator cord and
rotenone) previously necessary to collect the Narrows area.
Duane Harrell, Scientist
June 2, 1988
HLL35

DUKE POWER COMPANY
89 GENERAL OFFICES
422 SOUTH CHURCH STREET
CHARLOTTE, N. C. 28242
April 29, 1988
Mr. David R. Spain, Regional Director
Asheville Regional Office
North Carolina Department of Natural Resources
and Community Development
59 Woodfin Place
P. O. Box 370
Asheville, North Carolina 28802
Re: Tuxedo Hydro Station
File No: GAH-0308
Dear Mr. Spain:
TELEPHONE: AREA 704
373-4011
MAY 5 i�ba
ADVIIN
1LF [�N.R&CD
This letter is an update to our March 4, 1988 transmittal. Since
that time we have completed the fifth sediment removal operation
at the Tuxedo Hydro Station powerhouse.
Sixteen truck loads of sediment were removed from the river
during April 18-19, 1988. The total volume of sediment removed
from the river since the slide occurred is an estimated 4,600
cubic yards.
Fisheries and macroinvertebrate sampling will be conducted in
accordance with the following schedule:
Fisheries May 9-11, 1988
Fisheries and Macroinvertebrate June, 1988
We will contact your office when the actual dates for the June
sampling are determined.
In addition to the sampling, two other projects are scheduled for
installation at Tuxedo. To control the lake level and augment
river flow, three 24" diameter pipes will be installed from the
penstock below the dam into the gorge.
The City of Hendersonville's contractor is mobilizing for
installation of the 12" diameter water main to Saluda the week of
May 9, 1988. This will require cutting a trench across the slide
area. The contractor is aware of the importance of preventing
erosion and containing any sediment.

ril 29, 1988
Page 2
We will continue to keep your office apprised of any significant
changes in the situation at Tuxedo.
Very truly yours,
S. B. Hager, Chief Engineer
Civil/Environmental Division
By: R. Hendricks
Principal Engineer
HLL/kmp/HLL11
cc: T. F. Talbert
R. D. Harrell
D. L. Freeze
Central Records

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NORTH CAROLINA DEPARTMENT OF NATURAL
RESOURCES AND COMMUNITY DEVELOPMENT
6 ! :l Date 7 -- - 1947
To: T , v,�5.2
From: oay 1„�, S�►1i N
Remarks:
r.(A 4 N ► i -r i Zy F� nA
❑ Note and file
❑ Note and return to me
❑ Note and see me about this
❑ For your approval
❑ Per our conversation
❑ Per your request
❑ Note, initial and forward
❑ Your comments, please
❑ For your information
❑ Prepare reply for my signature
❑ Prepare Information for me to reply
❑ Please answer, with copy to me
0 To be filed

IMPORTANT
To
_
Date Time
WHILE YOU WERE OUT
M
of
Phone
AREA CODE
NUMBER EXTENSION
Message
Signed
TELEPHONED
PLEASE CALL
CALLED TO SEE YOU
WILL CALL AGAIN
WANTS TO SEE YOU
URGENT
RETURNED YOUR CALL
N. C. Dept. of Natural Resources and Community Development

Co
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