NCG500127_renewal application_20191119

DUKE
ENERGY®
November 18, 2019
Mr. John Hennessy
Division of Water Resources
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
2500 Fairfax Road
Greensboro NC 27401
RECEIVED
DEC 0 2 2019
NCDEQIDWRINPDES
Subject: Duke Energy Carolinas, LLC -NPDES Permit Application Renewal ofNPDES General
Permit - #NCG500000
Bear Creek Hydroelectric Plant-NCG500124
Blewett Falls Hydroelectric Plant-NCG500190
Bridgewater Hydroelctric Plant NCG500102
Cedar Cliff Hydroelctric Plant-NCG500125
Cowans Ford Hydroelectric Plant - NCG500139
Lookout Shoals Hydroelectric Plant - NCG500120
Marshall Hydroelectric Plant-NCG500591
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
Tillery Hydroelectric Plant - NCG500189
Tuckasegee Hydroelectric Plant - NCG500126
Walters Hydroelectric Plant - NCG500188
Dear Mr. Hennessy:
Duke Energy requests the subject general permit be renewed and reissued. The above referenced permit
expires July 31, 2020. As mandated by North Carolina Administrative Code 15A NCAC 21-1.0105 (e), this
permit application for renewal is being submitted at least 180 days prior to expiration of the current
permit.
Please find enclosed one original and one copy of the Notice of Renewal Intent for each of the
hydroelectric facilities named above.
Duke Energy respectfully requests notification that this application is complete and thank you in advance
for your assistance with this renewal. Please contact me at (336)-854-4916 or at Lori.Tol lie@duke-
eneruN,.corn should you have any questions.
Sincerely,,,,,
�� Lt )
Lori Tollie — Senior Environmental Specialist

40
�. l
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Resources
Pat McCrory Thomas A. Reeder John E. Skvarla, III
Governor Director
Secretary
NOTICE OF RENEWAL, INTENT
[Required by 15A NCAC 02H .0127 d 1; (term definition see 15A NCAC 0211.0103(19)]
Application for renewal of existing coverage tinder General Permit NCG500000
Existing Certificate of Coverage (CoQ: NCG500127
(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
Lori Tollie
Street Address
2500 Fairfax Road
City
Greensboro State NC:
Telephone #
336 - 854 - 4916 Fax # - -
Email Address
Lori.Tollie a duke-energy.coni
2) Location of facility producing discharge:
Facility Name
Thorpe Hydroelectric Station
Facility Contact
W. Marcus Pitts
Street Address
13201 Highway 107
City
Tuckasegee State NC
County
Jackson
Telephone #
864 - 304 - 9703 Fax # - -
Email Address
[e-mail]
ZIP Code 27407 -
ZIP Code 28783 -
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 tit^astewater ftom the properiv):
"I'wo
Page I of

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
❑ Boiler Blowdown OutfalI (s) #:
❑ Cooling Tower Blowdown OutfalI (s) #:
❑ Condensate Outfall (s) #:
® Other Outfall (s) #: 002
(Please describe "Other"):
d) Volume of discharge per each discharge point (in GPD):
#001: 531360 GPD 9002: 72000 GPD #003: GPD #004: _ GPD
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
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. E Mon. ® Tue. ® Wed. ® Thu. ® Fri.
Page 2 of 3

NCG500000 Renewal Application
S50to-1
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 02F1.00.1;8LbX11.
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: Vice President Carolinas Regulated
(Please review 15A NCAAC 0211 .0106(e) for authorized signing officials) Renewables
Signature of AI)1 rant Date Signed
North Carolina General Statute; 143-215.6F3 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 t1.S.('. 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 rec'tire a separate fee.
The permitted facilityalready 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