NCS000573_Minor Mod Request to Add SW Outfalls_20180206

DUKE
VENERGY,
January 30, 2018
Mrs. Bethany Georgoulias
Environmental Engineer
Stormwater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
1612 Mail Service Center
Raleigh, NC 27699-1612
Belews Creek Steam Station
Duke Energy Carolinas
3195 Pine Hall Road
Belews Creek, NC 27009
RECF-ID
DENR-LAND QUALITY
STORMWATER PERMITTING
Subject: Duke Energy Carolinas, LLC. (Duke Energy)
Belews Creek Steam Station
Request for Addition of Stormwater Outfalls - Craig Road Landfill Sedimentation Basins
Permit #NCS000573
Stokes County
Dear Mrs. Georgoulias:
During our meeting in September we discussed two sedimentation basins located along Craig Road at Belews Creek Steam
Station — permit #NCS000573. These basins were constructed as erosion and sedimentation control measures under an
approved E&SC plan for the construction of Phase 1 of the Craig Road Landfill. Although the plan was closed out in August
2015, the basins continue to receive industrial stormwater from the ditch line along Craig Road. At the time of our meeting,
we discussed an upcoming visit by the US Corp of Engineers, the result of which could affect the location of the NPDES
compliance point for this industrial stormwater. The US Corps of Engineers has completed its site evaluation and determined
that the basins do not contain jurisdictional waters. Therefore Duke Energy requests that the outlet structures for these
sedimentation basins be added to the current stormwater permit.
The basins were designed based upon 10-year storm events. The inlet pipes are located at the lower end of the basins
opposite to the outlet structures. The outfalls discharge to an unnamed intermittent stream.
The following documentation is attached.
Page 45 of Drawing C1 from Phase 2 Construction Plan that depicts the sedimentation basins as BMP-6 and BMP-7.
Duke Energy requests that the stormwater outfalls for these be SW-028 and SW-029 respectively. BMP-6 (SW028)
drainage area is approximately 8.86 acres with 16% impervious surface. The Outfall coordinates are 36°16'04"N, -
80°03'53"W. BMP-7 (SW029) drainage area is approximately 6.12 acres with 11% impervious surface. The
Outfall coordinates are 36°15'53"N,-80°03'59"W.
Revised Site Plan Stormwater Outfalls. Drainage boundary lines should be field verified, drainage boundaries found
in this figure should be considered as approximate based on available aerial and topographical data.

Thank you for your consideration. Should you have any questions regarding this notification, please contact Joyce Dishmon
at 336-394-5524 or [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 p�eibility of fines and imprisonment for knowing violations.
Sincerely,
Reginald D. Anderson —
General Manager III, Regulated Stations
Belews Creek Steam Station
Power Generating Carolinas East
Attachments

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