NCG500120_complete file-historical_20160119

K-�
Water Resources
ENVIRONMENTAL OUALI I
January 19, 2016
Mr. Steve Cahoon
Duke Energy Carolinas, LLC
410 S Wilmington St
Raleigh, NC 27601
PAT MCCRORY
DONALD R. VAN DER VAART
S. JAY ZIMMERMAN
Subject: Renewal of General Permit NCG500000
Lookout Shoals Hydroelectric Station
Certificate of Coverage NCG500120
Iredell County
Dear Permittee:
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) NCG500120 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 Mooresville 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
[e-mail]].
cc: Mooresville Regional Office
NPDES file
;SJZayZimm
,
erman, Direc r
Division of Water Resources
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, NC 27699-1617
919 807 6300 919-807-6389 FAX
httpJ/portal.ncdenr.org/web/wq

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500120
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
Lookout Shoals Hydroelectric Station
678 Lookout Dam Rd
Statesville
Iredell County
to receiving waters designated as the Catawba River, a class WS-IV & B CA stream in subbasin
03-08-32 of the Catawba 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
for y Zimmerman, Director
ivision of Water Resources
By Authority of the Environmental Management Commission

A
RLDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory
Govemor
June 5. 2015
Mr. Norbert Zalme
Duke Energy Carolinas, LLC
2818 S. Main Street
Concord, North Carolina 28027
Subject: Compliance Evaluation Inspection
Lookout Shoals Hydroelectric Station
NPDES General Permit NCG500000
Certificate of Coverage No. NCG500120
Iredell County
Dear Mr. Zalme:
Donald van der Vaart
RECEIVEDIDENRIDWR
JUN 0 S 2015
Water Quality
Permitting Section
Enclosed please find a copy of the Compliance Evaluation Inspection report for the inspection
conducted at the subject facility on June 1, 2015, by Ms. Marcia Allocco of this office. I wish to thank
you for your assistance regarding the inspection and your efforts to maintain compliance with the
permit.
The inspection report should be self-explanatory; however, should you have any questions
concerning the report, please do not hesitate to contact me at [phone] or
[e-mail].
Sincerely,
Marcia Allocco, MS
Environmental Senior Specialist
Water Quality Regional Operations
Division of Water Resources
Enclosures: Inspection Report
cc: Wastewater Branch, C. Weaver
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] fax: [phone] Customer Service: 1-877-623-6748
Internet http:llportal.nodenr.org/web/wq
An Equal Opportunity 1 Afirmetive Action Employer- 30% Recycled110% Post Consumer paper

fIT
United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN I 2 IS ( 3 I NCG500120 (11 12 15/06/01 17 18 J C I 19 is j 20I I
211 1 1 1 1 1 1 1 1 1 11 1 1 1 I I I I I I __t I I III I I I I I I I I I I I 1 1
Inspection
_._LJ6
Work Days Facility Self -Monitoring Evaluation Rating B1 QA Reserved
67
11.0 70 J�j 71 1„ j 72 UN73L I 174 751 1 1 180
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
12:05PM 15/06/01
12/08/03
Lookout Shoals Hydroelectric Station
678 Lookout Dam Rd
Exit Time/Date
Permit Expiration Date
Statesville NC 28625
12:55PM 15/06/01
15/07/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
l/l
Name, Address of Responsible Official/Titie/Phone and Fax Number
Allen Stowe,526 S Chruch St Charlotte NC 282011002//704-382-430917043829840 Contacted
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program 0 Facility Site Review Effluent/Receiving Waters Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Names) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Marcia Ailocco MRO WQV04-663-1699 Ext.2204/ �jt L
ty)
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day Inspection Type
31 NCG500120 1
11 12 15/06/01 17 18 i c i
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page#

1
Permit: NCG500120
Inspection Date: 06/01/2015
Owner - Facility: lookout Shoals Hydnoelectdc Station
Inspection Type: Compliance Evaluation
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new 0 ❑ ❑ ❑
application?
Is the facility as described in the permit?
❑
0
❑
❑
# Are there any special conditions for the permit?
❑
M
❑
❑
Is access to the plant site restricted to the general public?
0
❑
❑
❑
Is the inspector granted access to all areas for inspection?
M
❑
❑
❑
Comment: The general permit was reissued on August 1.2012. and expires on July 31.2015. A NOI to
continue permit coverage was submitted to the Division on January 26, 2015: which
included two additional outfalls (004 and 005) for junior generators installed at the facility.
The permittee has maintained permit coverage since September 10, 1993. The last
compliance evaluation inspection was conducted on September 1, 2009.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? 0 ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ M ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: The Lookout Shoals Hydroelectric station includes three generators and the permittee has
historically noted three outfalls at the site. Updates to this information are included in the
most recent NOI submittal as noted in the Permit section of this report.
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used fog reporting?
❑
M
❑
❑
Is flow meter calibrated annually?
❑
❑
M
❑
Is the flow meter operational?
❑
❑
M
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment: Flow is estimated and based on the capacity of the installed generators.
Effluent Sampling
Yes No NA NE
Is composite sampling flow proportional?
❑
❑
M
❑
Is sample collected below all treatment units?
0
❑
❑
❑
Is proper volume collected?
0
❑
❑
❑
Is the tubing clean?
❑
❑
M
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
M
❑
❑
❑
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
0
❑
❑
❑
representative)?
Page# 3

Permit: NCG500120
Inspection Date: 06/01/2015
Effluent Sampling
7
r
Owner - Facility: Lookout Shoals Hydroelectric Station
Inspection Type: Compliance Evaluation
Yes No NA NE
Comment: Although the Dermittee notes three outfalls it is difficult to sample each outfall separately_.
Effluent sampling (temperature, PH, and oil & grease) is conducted at one location within the
tailrace of the dam. Neither chlorine nor any other water treatment chemicals are added
during the power generation process so TRC and COD analyses are not required.
Upstream / Downstream Sampling Yes No NA NE
Is the facility sampling performed as required by the permit (frequency, sampling type, and 0 ❑ ❑ ❑
sampling location)?
Comment: The 2009 inspection noted that permittee had ceased monitoring. temperature downstream.
Temperature monitoring has been conducted upstream and downstream
quarterly since
this time.
Laboratory
Yes No NA NE
Are field parameters performed by certified personnel or laboratory?
0 ❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
0 ❑
❑
❑
# Is the facility using a contract lab?
❑ M
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
M ❑
❑
❑
Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? ❑ ❑ M ❑
Incubator (BOD) set to 20.0 degrees Celsius +/-1.0 degrees? ❑ ❑ M ❑
Comment: Duke Energy Carolinas, LLC is certified by the Division to conduct all analyses required by
the permit (Laboratory certifications 248 and 5156). The field instrumentation used on site
appeared to be properly calibrated and documented (pH and temperature).
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required information readily available, complete and current?
0
❑
❑
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
0
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
❑
❑
❑
Is the chain -of -custody complete?
0❑
❑
❑
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis .
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
❑
❑
0
❑
Page# 4

a
{
Permit: NCG500120
Inspection Date: 06/01/2015
Owner - Facility: Lookout Shoals Hydroelectric Station
Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Has the facility submitted its annual compliance report to users and DWQ? ❑ ❑ 0 ❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ M ❑
on each shift?
Is the ORC visitation log available and current?
❑
❑
M
❑
Is the ORC certified at grade equal to or higher than the facility classification?
❑
❑
M
❑
Is the backup operator certified at one grade less or greater than the facility classification?
❑
❑
❑
Is a copy of the current NPDES permit available on site?
0
❑
❑
❑
Facility has copy of previous year's Annual Report on file for review?
❑
❑
M
❑
Comment: The permittee's records were organized and well maintained and records requested during
the inspection were readily available. Monitoring data were reviewed for the current permit
term. No limit violations were reported and all monitoring frequencies were correct.
Page# 5

W *04
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Pat McCrory Thomas A. Reeder John E. Skvada, III
Governor Director Secretary
NOTICE OF RENEWAL INTENT
[Required by 15A NCAC 02H .0127(d)l; [term definition see 15A NCAC 02H .0103(19)I
Application for renewal of existing coverage under General Permit NCG500000
Existing Certificate of Coverage (CoQ: NCG500120
(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] RECEIVEDIDENRIDWR
JAN 3 0 2015
2) Location of facility producing discharge: Water Quality
Facility Name Lookout Shoals Hydroelectric Station Permitting Section
Facility Contact Nob Zalme
Street Address 678 Lookout Dam Road
City Statesville State NC ZIP Code 28625 -
County Iredell
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):
Five
Pagel of3

NCG500000 Renewal Application
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
® Non -contact cooling water
❑ Boiler Blowdown
❑ Cooling Tower Blowdown
❑ Condensate
❑ Other
(Please describe "Other"): —
Outfall (s) #: 001, 002, 003, 004, 005
Outfall (s) #:
Outfall (s) #:
Outfall (s) #:
Outfall (s) #: —
d) Volume of discharge per each discharge point (in GPD):
#001: 86,400 GPD #002: 100,800 GPD 9003: 100,800 GPD #004: 43,200 GPD
oaS: 423, .wo G-f"0
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? (Le., retention ponds,
settlingponds, 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

NCG500000 Renewal Application
Additional Application Requirements:
The following information must be included in duplicate [original + I 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 Title: GM III Regional Fleet
(Please review 15A NCAC 02H .0106(e) for authorized signing officials)
Click to enter a date.
Signature of cant Date Signed
North Carolina General Statute § 143-215.613 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 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 alreadygys 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

81°06'00' W
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Lookout Shoals Hydro Station
NPDES No.: NCG500120
Outfall 001
Sampling Waypoint:
N: 35° 45' 26"
W: 810 05' 21"
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I
PIMA -
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
Lookout Shoals Hydroelectric Station
Certificate of Coverage NCG500120
Iredell County
The Division is renewing Certificate of Coverage (CoC) NCG500120 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 Mooresville 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 contact John
Hennessy [919 807-6377 or [e-mail]].
Sincerely,
Original signed by John Hennessy
for Charles Wakild, P.E.
cc: Mooresville Regional Office / Surface Water Protection
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,ncwate(quality.org
An Equal Opportunity/Affirmative Action Employer- 50% Recycled/10% Post Consumer Paper
oe
NCarolina
)Vatkrally

In
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NCG500000
CERTIFICATE OF COVERAGE NCG500120
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
Lookout Shoals Hydroelectric Station
678 Lookout Dam Road
Statesville
Iredell County
to receiving waters designated as the Catawba River in subbasin 03-08-32 of the Catawba
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 Hennesa
for Charles Wakild, Director
Division of Water Quality
By Authority of the Environmental Management Commission

To
NPDES Unit
Water Quality Section
Attention: Charles Weaver
SOC PRIORITY PROJECT: No
Date: April 23, 2012
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Iredell
NPDES Permit No.: NCG500120
PART I - GENERAL INFORMATION RECEIVED,
1. Facility and address: Lookout Shoals Hydro Station MAY 0 4 2012
c/o Duke Energy Carolinas, LLC
526 South Church Street —EC13K CENTRAL FILES
Charlotte, N.C. 28202 DWQ/BOG
2. Date of investigation: March 29, 2012
Report prepared by: Michael L. Parker, Environmental Engineer II
4. Person contacted and telephone number: Allen Stowe, [phone]; Dam [phone].
5. Directions to site: From the junction of SR 1502 (Sharon School Rd.) and I-40 in western Iredell
County, travel north on SR 1502 approx. 150 yards and turn left on SR 1501 (Walnut Tree Rd.).
Proceed to the end of SR 1501 and turn left on SR 1500 (Lookout Dam Rd.). The Dam is located
at the end of SR 1500.
6. Discharge point(s), list for all discharge points*:
Latitude: 350 45' 26"
Longitude: 81' 05' 23" USGS Quad No.: D 14 SE
*Due to the fact that the three outfalls at this facility are in relative close proximity to each other,
this is an approximation of the latitude/longitude of all three outfalls.
Receiving stream or affected surface waters: Catawba River
a. Classification: WS-IV, B CA
b. River Basin and Subbasin No.: Catawba 030832
C. Describe receiving stream features and pertinent downstream uses: The Hydro Station is
located on the main channel of the Catawba River. Downstream uses consist of primary
and secondary recreation with frequent bodily contact. There are no other known
dischargers and/or drinking water supply intakes for a distance of several miles below the
existing point of discharge.

Page Two
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Volume of Wastewater: outfall 001- 0.0864 MGD (20 gpm from the Lube Oil Coolers and 40 gpm
of Bearing Cooling water); outfall 002 - 0.1008 MGD (20 gpm from the Lube Oil Coolers and 50
gpm of Bearing Cooling water); outfall 003 - 0.1008 MGD (20 gpm from the Lube Oil Coolers
and 50 gpm of Bearing Cooling water). These flows are based on the power generation units
running at maximum capacity.
2. Possible toxic impacts to surface waters: None expected (biocidal additives are not used at this
facility).
PART III - OTHER PERTINENT INFORMATION
1. Compliance history: This facility has a good compliance history.
2. Special monitoring or limitations (including toxicity) requests: None at this time.
PART IV - EVALUATION AND RECOMMENDATIONS
The applicant, Duke Energy Carolinas, LLC, operates a hydroelectric dam on the Catawba River
(constructed in 1915), which generates electric power used throughout Duke's service area. Complex
electrical generation machinery exists at this facility that requires cooling water during operation. This
cooling water is characterized as lube oil cooling water and bearing cooling water, which is used to
lubricate the turbine shaft during facility operation.
Pending a final review by the NPDES General Permits Unit, reissuance of a Certificate of
Coverage appears to be appropriate based on the existing wastewater sources.
C_ e --*,% e _
Signat e of Report Preparer
L
Water Quality Regional Supervisor Date
hAdsrldsr 1211ookoutshoals.doc

i&'*o)n Division of Water Quality / Water Quality Section
NCDEiTR National Pollutant Discharge Elimination System
4cwm c.RauN. Go.pmr- r cw
F,MfM mn m NCG500000
Date Received I
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG500000: Non -contact cooling water, boiler blowdown, cooling tower blowdown, condensate, and
similar point source discharges
(Please print or type)
1) Mailing address of owner/operator:
Company Name Duke Energy Carolinas, LLC
Owner Name Allen Stowe - Water Management
Street Address 526 South Church Street, Interoffice - EC13K
City Charlotte
Telephone No. [phone]
* Address to which all permit correspondence will be mailed
2) Location of facility producing discharge:
Facility Name Lookout Shoals Hydroelectric Station
Facility Contact
Street Address
City
County
Mike Lail
678 Lookout Dam Road
Statesville
Iredell
Telephone No. 704
3) Physical location information;
878-3959
State N•C• ZIP Code 28202
Fax: [phone]
State NC ZIP Code 28625
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 1-77 N to 1-40 W in Statesville. Take Sharon School
Road exit, turn right. Go 1.6 miles, turn left on Island Fond Road; Station is 2.5 miles ahead.
(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:
B Renewal
Please specify existing permit number and original issue date:
5) Does this facility have any other NPDES permits?
8 No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
6) What is the nature of the business applying for this permit? Electric Generation
Page 1 of 4 04/05

NCG500000 N.O.I.
7) Description of Discharge:
a) Is the discharge directly to the receiving water? B 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): Three -Tailrace
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, 003
❑ 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: 86,400 #2: 100,800 #3: 100,800 #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.:
8 None
9) If any box in item (8) above, other than none, was checked, a completed Biocide 101 Form and
manufacturers' information on the additive is required to be submitted with the application for the
Division's review.
10) Is there any type of treatment being provided to the wastewater before discharge (i.e., retention ponds,
settling ponds, etc.)? ❑ Yes B No
If yes, please include design specifics (i.e., design volume, retention time, surface area, etc.) with
submittal package. Existing treatment facilities should be described in detail. Design criteria and
operational data (including calculations) should be provided to ensure that the facility can comply with the
requirements of the General Permit. The treatment shall be sufficient to meet the limits set by the
general permits.
Note: Construction of any wastewater treatment facilities requires submission of three (3) sets
of plans and specifications along with the application. Design of treatment facilities
must comply with the requirements of 15A NCAC 2H .0138. If construction applies to
this discharge, include the three sets of plans and specifications with this application.
Page 2 of 4 04/05

NCG500000 N.O.I.
11) Discharge Frequency:
a) The discharge is: 8 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: ❑ Jan.
❑ May ❑ Jun. ❑ Jul. ❑ Aug. ❑ Sept. ❑ Oct. ❑ Nov.
How many days per week is there a discharge? Seven
Please check the days discharge occurs:
B Sat. 8 Sun. 8 Mon. B Tue. B Wed. B Thu. 8 Fri.
12) Pollutants:
❑ Seasonalo
❑ Feb. ❑ Mar. ❑ Apr.
❑ Dec.
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). Catawba River
b) Stream Classification: Ws-iv,B,CA
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 Altematives"
15) Additional Application Requirements:
For new or proposed discharges, the following information must be included in triplicate with this
application or it will be returned as incomplete.
a) 7.5 minute series USGS topographic map (or a photocopied portion thereof) with discharge location
clearly indicated.
b) Site map, if the discharge is not directly to a stream, the pathway to the receiving stream must be
clearly indicated. This includes tracing the pathway of a storm sewer to its discharge point.
c) If this application is being submitted by a consulting engineer (or engineering firm), include
documentation from the applicant showing that the engineer (Or firm) submitting the application has
been designated an authorized Representative of the applicant.
d) Final plans for the treatment system (if applicable). The plans must be signed and sealed by a North
Carolina registered Professional Engineer and stamped -"Final Design -Not released for construction".
Page 3 of 4 04/05

NCG500000 N.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.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Name of Person Signing: Carol S.Goolsby
Title: Vice President. Hydro Fleet
(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:
H Check for $100 made payable to NCDENR
H 3 copies of county map or USGS quad sheet with location of facility clearly marked on map
H 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.
H Thorough responses to items 1-7 on this application
H 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

TORO! map prnted on 09/10/07 from -North Camhna.tpo" and "UnUtled.tpg"
81-06'00" W 81-05'00"W 81-04'00"W WGS84 81-03'00" W
LOOKO UT SHOALS
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at
Lookout Shoals Hydro Station
NPDES No.: NCG500120
Outfall 001
I'v
Sampling Waypoint:
N: 35* 45'26"
W: 81* 05'21"
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Duke
nergye IDE
CERTIFIED MAIL — RETURN RECEIPT REQUESTED
January 29, 2008
Mr. David Matthews II
North Carolina Department of Environmental
Health and Natural Resources
Division of Water Quality
Point Source Branch
1617 Mail Service Center
Raleigh, NC 27669-1617
BARRY E. PULSKAMP
Senior Vice President
Regulated Fleet Operations
Duke Energy Corporation
139 East Fourth Street
EM402
Cincinnati, OH 45202
513 287 3485
[e-mail]
11 FEB - 5 2008
t . WATER QUALp (
Re: Delegation of Authority - Signatures on Reports and Requested Information
Duke Energy NPDES Permitted Stations
North Carolina Hydroelectric Facilities
Dear Mr. Matthews:
Part II of B.6.b of the NPDES permits and Federal Regulation 40 CFR 122.22 specify that all
reports required by NPDES permits and other information requested by the permit issuing authority
shall be signed by a responsible corporate officer or a manager of the facility who is authorized to
make management decisions governing the operation of the facility. I hereby authorize the
Manager or General Manager, Hydro Fleet (currently Carol S. Goolsby), and her successors, the
authority to sign all reports and requested information related to the permits or permit applications
for the North Carolina hydroelectric facilities specified below:
B Bear Creek, ri ge�wate�, Bry$osrN Ce a�rliff, Cowans Ford, Lookout Shoals, Mi slon,
faY3� 4 Mountain Island, Nantahala, Oxford, Rho hiss, Tennessee Creek, Thorpe, Tuckasegee,
Tuxedo— iy / ��crntao/3� pcl ,a�/o9 Nec bo/a3 Nz iW/a7 y
NCGt�Id iyccGsoo/%q
If there are questions or additional information fs needed, please contact Allen Stowe at
(704) 3824309.
Sincerely,
/WP-
Barry E. Pulskamp
Senior Vice President
Regulated Fleet Operations
www.duke-energy.com

A.0 0 4 MA
e
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Coleen H. Sullins, Director
July 23, 2007
Jimmie Allen Stowe, Jr.
Duke Energy Corporation
526 South Church Street / EC 13K
Charlotte, NC 28202
Subject: Renewal of coverage / General Permit NCG500000
Lookout Shoals Hydroelectric Station
Certificate of Coverage NCG500120
Iredell County
Dear Permittee:
In accordance with your renewal application [received on January 31, 20071, the Division is renewing
Certificate of Coverage (CoC) NCG500120 to discharge under 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 May 9, 1994 [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.
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 contact Jim
McKay [919 733-5083, extension 595 or [e-mail].
Sincerely,
for Coleen H. Sullins
cc: Central Files
Mooresville Regional Office / Surface Water Protection
NPDES file
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One
512 North Salisbury Street, Raleigh, North Carolina 27604 N Orth Carol lna
Phone: [phone] / FAX [phone] / Internet: www.newaterquality.org Natit Nally
An Equal Opportunity/Affirmative Action Employer- 509% Recycled/10°/ Post Consumer Paper /

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERAHT NCG500000
CERTIFICATE OF COVERAGE NCG500120
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE AND SIMILAR WASTEWATERS UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIIVIINATION 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 from a facility located at
Lookout Shoals Hydroelectric Station
678 Lookout Dam Road
Statesville
Iredell County
to receiving waters designated as the Catawba River in subbasin 30832 of the Catawba
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 1, 2007.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day July 23, 2007.
/-�' -P� ��
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

To: NPDES Stormwater and General Permits Unit
Water Quality Section
Attention: Charles Weaver
SOC PRIORITY
Date: April 10, 2007
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Iredell
NPDES Permit No.: NCG500120
MRO No.: 07-03
PART I - GENERAL INFORMATION
1. Facility and address: Lookout Shoals Hydro Station
c/o Duke Energy Carolinas, LLC
526 South Church Street
Charlotte, N.C. 28202
2. Date of investigation: March 26, 2007
3. Report prepared by: Michael L. Parker, Environmental Engineer II
&LQr: No
-- .--3 it .
APR 1 2 200I LJ!
'R • WATER qU
vr_ E �AUT�
4. Person contacted and telephone number: Allen Stowe, [phone]; Dam (704) 872-
2284.
5. Directions to site: From the junction of SR 1502 (Sharon School Rd.) and I-40 in western
Iredell County, travel north on SR 1502 approx. 150 yards and turn left on SR 1501
(Walnut Tree Rd.). Proceed to the end of SR 1501 and turn left on SR 1500 (Lookout
Dam Rd.). The Dam is located at the end of SR 1500.
6. Discharge point(s), list for all discharge points*:
Latitude: 350 45' 26"
Longitude: 810 05' 23"
*Due to the fact that the three outfalls at this facility are in relative close proximity to
each other, this is an approximation of the latitude/longitude of all three outfalls.
Attach a USGS Map Extract and indicate treatment plant site and discharge point on map.
USGS Quad No.: D 14 SE

Page Two
7. Site size and expansion area consistent with application: Yes. There is essentially no
area available for the construction of WWT facilities, if necessary.
8. Topography (relationship to flood plain included): Hilly, 8-20% slopes. This facility, in
addition to producing electrical power, is a flood control structure for the Catawba River.
9. Location of nearest dwelling: Approx. 2000+ feet from the WWTP site.
10. Receiving stream or affected surface waters: Catawba River
a. Classification: WS-IV, B CA
b. River Basin and Subbasin No.: Catawba 030832
C. Describe receiving stream features and pertinent downstream uses: The Hydro
Station is located on the main channel of the Catawba River. Downstream uses
consists of primary and secondary recreation with frequent bodily contact. There
are no other dischargers and/or drinking water supply intakes for a distance of
several miles below the existing point of discharge.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater: outfall 001- 0.0864 MGD; outfall 002 - 0.1008 MGD;
outfall 003 - 0.1008 MGD (based on a maximum flow from the power generation
units).
b. What is the current permitted capacity: There is no permitted capacity listed in the
General Permit.
C. Actual treatment capacity of current facility (current design capacity): N/A
d. Date(s) and construction activities allowed by previous ATCs issued in the
previous two years: There have been no ATCs issued to this facility in the past
two years.
e. Description of existing or substantially constructed WWT facilities: There are no
existing WWT facilities.
f. Description of proposed WWT facilities: There are no proposed WWT facilities at
this time.
g. Possible toxic impacts to surface waters: None expected (biocidal additives are
not used at this facility).
2. Residual handling and utilization/disposal scheme: No residuals are generated.
3. Treatment plant classification: This facility does not meet the minimum criteria for a
Class I rating.

Page Three
4. SIC Code(s): 4911 Wastewater Code(s): 48 MTU Code(s): 00000
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? Public monies were not used in the construction of this
facility.
2. Special monitoring or limitations (including toxicity) requests: None at this time.
3. Important SOC or Compliance Schedule dates: This facility is neither under an SOC nor
is one being considered at this time.
4. Alternative Analysis Evaluation
a. Spray Irrigation: Insufficient area available.
b. Connect to regional sewer system: None available to the site.
c. Subsurface: Insufficient area available.
d. Other disposal options: None that we are aware.
PART IV - EVALUATION AND RECOMMENDATIONS
The applicant, Duke Power Company, operates a hydroelectric dam on the Catawba River
(constructed in 1915), which generates hydroelectric power used throughout Duke's service area.
Complex electrical generation machinery exists at this facility that requires cooling water during
operation. Reissuance of a Certificate of Coverage appears to be appropriate based on the
existing wastewater sources.
Pending a final review by the NPDES General Permits Unit, it is recommended that a
Certificate of Coverage be reissued as requested.
Signature of Report Preparer Date
Water Quality Regional Supervisor Date
hAdsrldsr0711ookout.dsr

" L
r
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Govemor 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): NCG500120
(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 StateNC ZIP Code 28202
Telephone Number,[phone] Fax: [phone]
Email address [e-mail]
" Address to which all permit correspondence should be mailed
2) Location of facility producing discharge:
Facility Name Lookout Shoals Hydroelectric Station
Facility Contact Sam Powell
Street Address 678 Lookout Dam Road
City Statesville StateNC ZIP Code 28625
County Iredell
Telephone Number(704) 872-2284 Fax: NL
Email address sgpowell@,duke-energy.com
3) Description of Discharge:
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): Three -Tailrace
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
® Non -contact cooling water Outfall(s) #: 001,002,003
❑ Boiler Blowdown 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: 86,400 #002: 100,800 #003: 100,800 #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 O 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 O 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). Catawba River
b) Stream Classification: WS-IV,B,CA
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
IS-"~
(Signature
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.)
asasasasasasasasasasasa
This Notice of Renewal Intent does NOT require a separate fee.
The ..permitked 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

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Mapped, edited, and published by the Geological Survey from U5G6 -Z-54-c,sy P6i+4+ /J
Control by USGS and USC&GS * QUAD
MN;
SECTION OF USGS TOPOGRAPHIC
MAP OF THE AREA AROUND
LOOKOUT SHOALS HYDRO STATION
SCALE 1:24000
fu1E Y: 0 1>�t
1000 0 1000 2000 3000 4000 6000 6000 7000 FEET
1 .6 0 1 KLOMETER
_ CONTOUR INTERVAL 20 FEET

PLAN
ELEVATON
LOOKING UPSTREAM)
JERN:
LEGEND
001 - Unit 1 Lube Oil Cooler Water Discharge To Tailwater
002 - Unit 2 Lube Oil Cooler Water Discharge To Tailwater
003 - Unit 3 Lube Oil Cooler Water Discharge To Tailwater
DUKE POWER COMPANY
LOOKOUT SHOALS HYDRO STATION
NATIONAL POLLUTANT DISCHARGE
ELIMINATION SYSTEM (NPOES)
POINT SOURCE DISCHARGES
N. F—AM L pATE y-7-n j%V 041E
DRI6 ccaa sca soq ►ro[c MRICAM" EaC y' OECCEo 041E Mm o+TE
N0. REV I S I ONS DRN DATE CWD DATE APPR GATE Clrrt cuc �Etx REV.
NO. LS-NPDES y

State of 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
July 26, 2002
ANGELA GROOMS
LOOKOUT SHOALS HYDROELECTRIC PLANT
13339 HAGERS FERRY RD MAIL CODE EC IE
HUNTERSVILLE, NC 28078
Dear Permittee:
1••
NCDENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: Reissue - NPDES Wastewater Discharge Permit
Lookout Shoals Hydroelectric Plant
COC Number NCG500120
Iredell County
In response to your renewal application for continued coverage under general permit NCG500000, the Division of
Water Quality (DWQ) is forwarding herewith the reissued wastewater general permit Certificate of Coverage
(COC). This COC is reissued pursuant to the requirements of North Carolina General Statute 143-215.1 and the
Memorandum of Agreement between the state of North Carolina and the U.S. Environmental Protection Agency,
dated May 9, 1994 (or as subsquently amended).
The following information is included with your permit package:
* A copy of the Certificate of Coverage for your treatment facility
* A copy of General Wastewater Discharge Permit NCG500000
* A copy of a Technical Bulletin for General Wastewater Discharge Permit NCG500000
Your coverage under this general permit is not transferable except after notice to DWQ. The Division 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 DENR or relieve the permittee from responsibility
for compliance with any other applicable federal, state, or local law rule, standard, ordinance, order, judgment, or
decree.
If you have any questions regarding this permit package please contact Aisha Lau of the Central Office Stormwater
and General Permits Unit at [phone], ext. 578
Sincerely,
for Alan W. Klimek, P.E.
cc: Central Files
Stormwater & General Permits Unit Files
Mooresville 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

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG500000
CERTIFICATE OF COVERAGE No. NCG500120
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE AND SBAMAR 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,
is hereby authorized to discharge
DUKE ENERGY CORPORATION
HYDROELECTRIC TURBINE COOLING
water or similar wastewater from a facility located at
LOOKOUT SHOALS HYDROELECTRIC PLANT
ROUTE 6, BOX 497
STATESVILLE
IREDELL COUNTY
to receiving waters designated as the Catawba River, a class WS-IV B CA water, in the Catawba 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, 2002.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day July 26, 2002.
64,
for Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan Howes, Secretary
A. Preston Howard, Jr., P.E., Director
David F. Mitchell
Duke Power Company
13339 Hagers Ferry Road
Huntersville , NC 28078
Q��
[DEHNR
July 24, 1997
Subject: Certificate of Coverage No. NCG500120
Renewal of General Permit
Lookout Shoals Hydro Plant
Iredell County
Note: Effluent limitations for this hydroelectric facility are found on pages A.2. and A.3.
Dear Permittee:
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 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.
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 your sell or otherwise transfer ownership of the
subject facility. The Division may require modification or revocation and reissuance of the Certificate of Coverage.
This permit does not affect the legal requirements to obtain other permits which may be required by the Division of
Water Quality, 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.
Sincerely,
v A. Preston Howard,
cc: Central Files
Mooresville Regional Office
NPDES File
Facility Assessment Unit
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. NCG500120
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
Lookout Shoals Hydro Plant
Route b, Box 497
Statesville
Iredell County
to receiving waters designated as subbasin 30832 in the Catawba 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.
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

State of North Carolina
Department of Environment, Health and Natural Resources
Division of Water Quality
512 North Salisbury StreeteRaleigh, North Carolina 27626
James B. Hunt, Jr., Governor A. Preston Howard, Jr., P.E.
Jonathan B. Howes, Secretary Director
NOTICE OF INTENT
National Pollutant Discharge Elimination System
Application for Coverage under General Permit NCG500000; Non -contact cooling water, boiler blowdown, cooling tower blowdown,
condensate, and similar point source discharges.
1. Name, Address, location, and telephone number of facility requesting Permit.
A.
Official Name:
Duke Power Company -Lookout
Shoals Hydro Station
B.
Mailing Address:
c/o John Carter
(1) Street Address;
13339 Hagers Ferry Road
(2) City;
Huntersville
(3) State;
North Carolina
-
(4) Zip;
28078 - 7929
='
(5) County,
Mecklenburg
C.
Location. (Attach map delineating general facility location)
'7!
(1) Street Address;
Route 6 Box 497
�+
-- =
(2) City;
Statesville
-
(3) State;
North Carolina 28677
(4) County,
Iredell
D.
Telephone Number,
(7 0 4) 8 7 2- 2 2 8 4
2. Facility Contact:
A.
Name;
Sam Powell
B.
Title;
Supervisor
C.
Company Name;
Duke Power Company
D.
Phone Number,
(7 0 4) 3 8 2 - 4 612
3. Application type (check appropriate selection):
A. New or Proposed;
B. Existing;
C. Modification;
(Describe the nature of the modification):
x If previously permitted, provide permit number NCG5 0 0 012 0
and issue date September 10, 1993
4. Description of discharge
A. Please state the number of separate discharge points.
1,❑; 2,❑; 3,®; 4,❑; ,❑.
B. Please describe the amount of wastewater being discharged per each separate discharge point:
1:10 , 0 8 0 gallons per day (gpd) 2: 9 , 504, (gpd) 3:10 , 080 (gpd) 4: (gpd)
Page 1
STF NCD0027F.1

C. - Check the duration and frequency of the discharge, per each separate discharge point:
1. Continuous:
2. Intermittent (please describe): Only when unit operates
FBI
3. Seasonal (check month(s) the discharge occurs): January ® ; February ® ; March ® ; April ® ; May ® ; June ® ; July E ;
August ® ; September ® ; October ® ; November ® ; December ® . Di scharge can Occur any month
4. How many days per week is there a discharge? (check the days the discharge occurs) Discharge can occur any day
Monday ® , Tuesday ® , Wednesday ® , Thursday ® , Friday ® , Saturday ® , Sunday ® .
5. How much of the volume discharged is treated? (state in percent) 0 %
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 (please describe); See Attachment 9
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 cooling water
(See Attachment 9)
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 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. None
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, Electricity Generation
A
Name of receiving water: Catawba River Classification: WS
(Attach a USGS topographical map with all discharge point(s) clearly marked)
Page 2
STF NC00027F.2

t
A
7. Is the discharge directly to the receiving 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 alternatives for the following options:
A. Connection to a Regional Sewer Collection System; Not available
B. Subsurface Disposal; Too much fl ow
C. Spray Irrigation; Not justifiable, no significant thermal gradient -or pollutant load
9. 1 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
T.C. McMeekin
Title Senior V.P. Power Generation
Date Application Signed
Al °�%
Signature of Applicant
NORTH CAROLINA GENERAL STATUTE 143.215.6E (1) PROVIDES THAT:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan or other
document Bled 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
STF NCDO027F 3

l Ch +
3960
Ir
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�1 �/ �-l�`V f ` j lr d4 �.�1'V) 1 1 • �11 -6r' ��` v
1IV
3959
OOKOUT.::::SHOA-
LSLAKE .=`-
i •� • ELEV 835
740 000 / r• `r
- N�•• •Y
FEET �'----�,t= •...I 1 ��./
oo
',,� �!� ♦ i Lookout Shoals Hydro Station
•• ��• !lam •+ 1 r'/ ��. � i •���.
3957
i ;'. ,�• Lookout Shoals
_ tation —'
IN �-- - `� Ramp Dam 1:..-:.rs=
ir
Catfish
Waterer -� i ;� { •_ -'" \ m
Tank ` C , �,• / '�
- � �� '_" •�• • �� � `� 1 1. � . ��� � �� �� � o F�F` �
350451
4- ,
81 ° 07'3d" 189 ' 490 1491 1 380 000 FEET ! 492 5'
Mapped, edited, and published by the Geological Survey Ft-.m U5G5 i ,%+ �•
Control by USGS and USC&GS * Q U Ax
MN�
SECTION OF USGS TOPOGRAPHIC
MAP OF THE AREA AROUND
LOOKOUT SHOALS HYDRO STATION
SCALE 1:24000
I MLE `i� a I LIE
1000 0 1000 2000 3000 4000 5000 6000 7000 FEET
1 .0 0 1 KLOKMR
CONTOUR INTERVAL 20 FEET

PLAN
tl.tVA 1 UN
(LOOKING UPSTREAM)
LEGEND
001 - Unit 1 Lube Oil Cooler Water Discharge To Tailwater
002 - Unit 2 Lube Oil Cooler Water Discharge To Tailwater
003 - Unit 3 Lube Oil Cooler Water Discharge To Tailwater
DUKE POWER COMPANY
LOOKOUT SHOALS HYDRO STATION
NATIONAL POLLUTANT DISCHARGE
ELIMINATION SYSTEM (NPDES)
POINT SOURCE DISCHARGES
oES3WR DATE bhp. DATE
LAML_DATE s-T•s3 ImP. DATE
n10 1El[45[0 sC" WWr. IYpLICATIOM EHC CHECKED— DATE Oft DATE
NO. REVISIONS DRN EIATE CHKD DATE AM DATE Egli I E1.1c .cap
�NSPECTEo DWG. N0. LS—NPDES REV.

GENERAL PERMITS
COPIES OF PERMITS ARE TO BE SENT
TO THE FOLLOWING:
SIGNED ORGINAL TO APPLICANT **
SIGNED COPY TO CENTRAL FILES
COPY TO REGIONAL OFFICE
COPY TO P&E FILE
COPY TO COMPLIANCE
_..COPY TO WAKE COUNTY
_COPY TO MECKLENBURG COUNTY
_,COPY TO TRAINING & CERT. * *
**ATTACH COPY OF GENERAL PERMIT

-tRtp 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
September 10, 1993
M. D. McIntosh
13339 Hagers Ferry Road
Huntersville, NC 28078
r
C)FEE HNR
Subject: General Permit No. NCG500000
Lookout Shoals Hydro Station
COC NCG500120
Ire -dell County
Dear Mr. McIntosh:
In accordance with your application for discharge permit received on June 11, 1993, we are forwarding
herewith the subject certificate of coverage to discharge under the subject state - NPDES general permit. This
permit is issued pursuant to the requirements of North Carolina General 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 Divsion 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 Mr. Randy Kepler at telephone number
919/733-5083.
Sincerely,
Original Signed By
Coleen H. Sullins
A. Preston Howard, Jr., P. E.
cc: Fran McPherson
Mooresville Regional Office
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

STATE OF NORTH CAROLINA
DEPARTIVENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF ENVIRONMENTAL MANAGEMENT
► _' _'� M. ►1 ► III�III
TO DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER BLOWDOWN,
CONDENSATE AND SIMILIAR WASTEWATERS UNDER THE
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 waters,
boiler water blowdown or similar waste streams with the discharge of treated wastewater from a facility located at
Lookout Shoals Hydro Station
on NCSR 1500
Iredell County
to receiving waters designated as the Catawba River in the Catawba 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 September 10,1993
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day September 10,1993
Original Signed By
Coleen H. Sullins
A. Preston Howard, Jr., P.E.,Director
Division of Environmental Management
By Authority of the Environmental Management Commission

\ ' • ° '\
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LOOKOUT SHOALS
�ilrl i„ :�� L, � I 1 �`•:rf•Ir" •—^t � f
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LAKE \ \�7% LL, /' rti y/� A r �• 979
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36.
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,I \ / \�== i� Lookout Shoals sion t ISta _ , /i �-� �%
Dam
Ramp rpl
491 1 380 000 FEET 492 5' 493 494 : (CA TAWBA) /� CO OVER /0 M
4755 11 NE
..I Survey 1 SCALE 1:2400J -
�� 1 7 o
M N 1000 0 1000 2000 3000 4000 5000 6000
--------------
GN - 1 5 0
a' CONTOUR INTERVAL 20 FEET
ystem 53 MILS. 0.02,
1 MIL DATUM IS MEAN SEA LEVEL
:fines where
an is uncherkArl UTM GRID AND 1970 MAGNETIC NORTH

a
SOC PRIORITY PROJECT: No
i
To: Permits and Engineering Unit
Water Quality Section
Attention: Randv Kepler
9
fJR 6 1993
Date: July 7, 1993
±EGHNG-',1s lrrGn7 ,,",H
NPDES STAFF REPORT AND RECOMMENDATIONS
County: Iredell
li
NPDES Permit No.: NCG50012� i
MRO No.: 93-134
PART I - GENERAL INFORMATION
1. Facility and Address: Lookout Shoals Hydro Station
c/o Duke Power Company
GSD Water Protection Group
13339 Hagers Ferry Road
Huntersville, N.C. 28078-7929
2. Date of Investigation: July 6, 1993
3. Report Prepared By: Michael L. Parker, Env 3 -O $ ' Z
4. Person Contacted and Telephone Number: Tim wg Z
Jennifer Rudisill, [phone]
5. Directions to Site: From the junction of S)
School Rd.) and I-40 in western Iredell Cow___ -z on SR 1502 approx. 150 yards and turn left on SR 1501
(Walnut Tree Rd.). Proceed to the end of SR 1501 and turn
left on SR 1500 (Lookout Dam Rd.). The Dam is located at the
end of SR 1500.
6. Discharge Point(s), List for all discharge Points: -
Latitude: 35' 45' 26"
Longitude: 810 05' 23"
Attach a USGS Map Extract and indicate treatment plant site
and discharge point on map.
USGS Quad No.: D 14 SE
7. Site size and expansion area consistent with application:
Yes.
8. Topography (relationship to flood plain included): Hilly,
8-20% slopes. This facility, in addition to producing
electric power, is a flood control structure for the Catawba
River.

Page Two
9. Location of Nearest Dwelling: Approx. 2000+ feet from the
WWTP site.
in. Receiving Stream or Affected Surface Waters: Catawba Fiver
a. Classification: WS-IV, B CA
b. River Basin and Subbasin No.: Catawba 030832
C. Describe receiving stream features and pertinent
downstream uses: The Hydro Station is located on the
main channel of the Catawba River. Downstream uses
consists of primary and secondary recreation with
frequent bodily contact. There are no other dischargers
and/or drinking water supply intakes for a distance of
several miles below the existing point of discharge.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater: outfall 001-10,080 gpd; outfall
002-9,504 gpd; outfall 003-10,080 gpd (based on a
maximum flow from the power generation units).
b. What is the current permitted capacity: N/A
C. Actual treatment capacity of current facility (current
design capacity): N/A
d. Date(s) and construction activities allowed by previous
ATCs issued in the previous two years: N/A
e. Description of existing or substantially constructed
WWT facilities: There are no existing WWT facilities.
f. Description of proposed WWT facilities: N/A
g. Possible toxic impacts to surface waters: None
expected.
h. Pretreatment Program (POTWs only): N/A
2. Residual handling and utilization/disposal scheme: No
residuals are generated.
3. Treatment Plant Classification: Less than 5 points; no
rating (include rating sheet). This facility does not meet
the minimum criteria for a Class I rating.
4. SIC_. Code(s): 4911
Wastewater Code(s):
Primary: 48
Secondary:
5. MTU Code(s): 00000

Page Three
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 at this time.
3. Important SOCIJOC or Compliance Schedule dates: N/A
4. Alternative Analysis Evaluation
a. Spray Irrigation: Insufficient area available.
b. Connect to regional sewer system: None available.
C. Subsurface: Insufficient area available.
d. other disposal options: N/A
PART IV - EVALUATION AND RECOMMENDATIONS
The applicant, Duke Power Company, operates a hydroelectric
dam on the Catawba River (constructed in 1915), which generates
hydroelectric power used throughout Duke's service area. Complex
electrical generation machinery exists at this facility that
requires cooling water during operation. Issuance of a General
Permit appears to be appropriate based on the existing wastewater
sources.
This facility actually straddles two counties (Catawba and
Iredell), however, it was decided to list this facility in
Iredell County since the access road originates from within this
county.
Pending receipt and approval of the WLA, it is recommended
that an NPDES Permit be issued.
C.
-3
-7
Siture o eport Preparer Date
Water Quality Regio4jl Supervisor Date

[nt 1
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150------------
i 1
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1
491 1 380 000 FEET 1 492 5' 493 494 (CA TAWS- /' co OVER 10 M1.
47W 11 NE
cal Survey SCALE 1:24000
1 0
MN 1000 0 1000 2000 3000 4000 5000 6000
al GN
1 5 0 1 KI
' 3• 0•02' CONTOUR INTERVAL 20 FEET
53 MILS
to System 1 1 MIL DATUM IS MEAN SEA LEVEL
•S,
eld lines where
nation is unchecked UTM GRID AND I970 MAGNETIC NORTH
DECLINATION AT CENTER OF SHEET