NCS000572 DMR SW (Not on Req'd Form)

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December 21, 2015 ,i
NC Department of Natural Resources RECEIVED
Division of Water Resources
Attention: Central Files DEC 2 9 2015
1617 Mail Service Center
Raleigh, NC 27699-1617 CENTRAL FILES
SWR SECTION
Subject: Non-Stormwater Discharge Evaluation and Certification
Dan River Combined Cycle Station (Permit Number NCS000572),
Dan River Combined Cycle
Duke Energy Carolinas
900 South Edgewood Road
Eden, NC 27288
Pursuant to Part ll, Section A: L(e) of the above referenced Stormwater permit, Duke Energy Carolinas, LLC (Duke
Energy) is providing the first annual certification of the permitted stormwater outfalls for the presence of non-
stormwater discharges. For any non-stormwater discharge identified, Duke Energy shall indicate how the discharge
is an allowable non-stormwater discharge. The following is a summary of the findings from this effort for the first
permit year.
The stormwater outfalls where observed during a period where no significant rainfall was recorded in the 72 hours
prior to the visual observation. All stormwater outfalls exhibited no discharge at the time of observation except for
the following:
• Outfall SWO1 I — Located on west side of powerhouse. Observed conditions indicate that this discharge is
uncontaminated groundwater at pipe material change from CMP to steel.
Should you have any questions regarding this submittal or require additional information, please contact Joyce
Dishmon at 336-394-5524 or email Joyce. Di [e-mail].
I certify under penalty of law, that this document and all attachments were prepared under my direction or
supervision in accordance with a system designed to assure that 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 belief, true, accurate, and complete: I am aware that there are significant penalties
for submitting false information, including the possibility offtnes and imprisonment for knowing violations
Sincerely,
Larry Sparks
GM 11— Regulated Stations
Dan River Combined Cycle
Cc: Joyce Dishmon, Sr Env Specialist
Dana Newcomb, Sr EHS Field Support
Tina Woodward, Sr Env Specialist
Annual Cernfication -
Non-Stormivater Discharges

KE
� ENERGY.,
NON-STORMWATER DISCHARGE ASSESSMENT AND CERTIFICATION
Date of Test
Outfall
Evaluation
Results
Potential
Name of Person
or Evaluation
Observed
Method
Source
who conducted
the test
12/11/2015
SW001
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO03
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO03A
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO03B
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO04
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO05
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO06
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO07
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SWO08
Visual
No Flow
-
Patrick Blandford
(HDR)
12/11/2015
SW011
Visual
Clear Discharge
Uncontaminated
Patrick Blandford
Periodic Drip
groundwater
(HDR)
Annual Certification
Non-Stormtivater Discharges Page 2