20150610 Ver 3_More Info Letter_20170601

+ i
Water Resources
Environmental Quality
June 1, 2017
Duke Power Company
Attn: Steve Cahoon
411 Fayetteville St
Mail Code: NC14
Raleigh NC 28601
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. JAY ZIMMERMAN
Director
DWR # 15-0610 v3
Rockingham County
Subject: REQUEST FOR ADDITIONAL INFORMATION
Dan River Steam Station Stormwater Diversion Project and associated Projects
Dear Mr. Cahoon:
On May 2, 2017, the Division of Water Resources — Water Quality Programs (Division) received your
application dated April 28, 2017, requesting an Individual 401 Water Quality Certification from the Division
for your project. The Division has determined that your application is incomplete and cannot be
processed.. The application is being placed on -hold until all of the following information is received:
This project includes a revision to impacts previously approved by the Division on May 12, 2016
(DWR#2016-0156v2). These impacts were for an access road for the Dan River Scarp Repair and
were approved as temporary impacts. The current application for an Individual Permit requests
that these impacts be approved as permanent impacts. The original review by the Division was
based on temporary impacts and therefore the Division requires a more detailed analysis of the
purpose and need for permanent impacts as well as a more detailed analysis of avoidance and
minimization measures. In addition, this project will be placed on hold until a compliance
inspection of these culverts has been conducted. [15A NCAC 02H .0506(f) and (g)]
2. Your application indicates that 130 linear feet of stream stabilization will occur at location DR -134
however Plan Sheet DR -134 Section Detail, Figure 02 shows riprap shading throughout the entire
channel bed. Please clarify whether riprap will be extended throughout the channel bed.
3. As requested in the pre -application, please provide a detailed analysis of the velocity expected at
outfall SW010, the riprap pad specifications and details, and an analysis of the impact this
additional flow and velocity may have on wetlands that are present immediately downslope of this
area.
State of North Carolina I Environmental Quality
450 W. Hanes Mill Road, Suite 300, Winston-Salem, North Carolina 27105
Phone: [phone] FAX: [phone]

Duke Energy
DWR# 2015-0610 v2
Request for Additional Information
Page 2 of 2
Pursuant to Title 15A NCAC 02H .0502(e), the applicant shall furnish all of the above requested information
for the proper consideration of the application. If all of the requested information is not received in writing
within 30 calendar days of receipt of this letter, the Division will be unable to approve the application and it
will be returned. The return of this project will necessitate reapplication to the Division for approval,
including a complete application package and the appropriate fee.
Please respond in writing within 30 calendar days of receipt of this letter by sending two copies of all of the
above requested information to the 401 & Buffer Permitting Unit, 1650 Mail Service Center, Raleigh, INC
27699-1650.
Please be aware that you have no authorization under the Water Quality Certification Rules for this activity
and any work done within waters of the state may be a violation of North Carolina General Statutes and
Administrative Code.
Please contact me at 336-776-9693 or Sue. [e-mail] if you have any questions or concerns.
Sincerely,
Sue Homewood
Winston-Salem Regional Office
cc: Julia Tillery, Amec Foster Wheeler Environment & Infrastructure Inc. (via email)
David Bailey, USACE Raleigh Regulatory Field Office (via email)
DWR WSRO 401 files
DWR 401 & Buffer Permitting Unit