NC0003468_Approval of Repair-Scope 1 Sate Dam ID RockI-238_20170503

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Final Approval of Repair
May 3, 2017
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. George T. Hamrick
Senior Vice President
Duke Energy
400 S. Tryon Street, ST06A
Charlotte, NC 28202
RE: Approval of Repair — Scope 1
Dan River Active Secondary Ash Basin Dam
Rockingham County
State Dam ID: ROCKI-238
Dear Mr. Hamrick:
ROY COOPER
Govenor
MICHAEL S REGAN
Seci etary
TRACY E. DAVIS
Directol
RECEIVED/WDENWR
M9 0 5 2017
Water Quality
Permitting Section
This correspondence concerns the referenced high hazard dam repaired pursuant to issuance of
an Approval of Repair dated December 5, 2014, as required by the Dam Safety Law of 1967.
The repair documentation pertaining to Scope 1 — Engineered repair plan to line the horizontal
outlet piping (centrifugally cast cementitious lining), certified by Mr. Joshua M. Bell, PE,
AMEC, was received by our office on August 2, 2016.
An inspection of this dam was made by the Land Quality Section staff from the Winston-Salem
Regional Office on March 28, 2017. The dam repair was found to be in general conformance
with the approved plans and specifications, and continued operation of the dam is hereby
approved.
The Land Quality Section staff will make periodic inspections of this dam to verify that the dam
is being maintained in good operating condition. It is advised that you closely inspect and
monitor your dam, and that you notify your engineer and the Division of Energy, Mineral, and
Land Resources if you notice or suspect any problems concerning its safety. The Emergency
Action Plan must be reviewed and updated annually, or as needed by the owner or the owner's
representative.
State of North Carolina I Environmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center 1 512 N Salisbury St I Raleigh, NC 27699
919 707 9200 T

Mr. George T. Hamrick Dan River Active Secondary Ash Basin Dam
Final Approval of Repair — Scope 1 ROCKI-238
May 3, 2017 Page 2 of 2
Please contact the Winston-Salem Regional Office at [phone] or a staff member of the
Dam Safety Program in the Raleigh Central Office at telephone number [phone] should
you have questions concerning this matter
Sincerely,
Brian Shane Cook, PE, LSIT
State Dam Safety Engineer
Land Quality Section
BSC/fmt
cc: Mr. Joshua M. Bell, PE, AMEC
Mr. Matthew Gantt, PE, DEMLR Regional Engineer
'Mr. Jeff Poupart, Division of Water Resources
Mr. Randy Hart, Duke Energy
File Name ROCKI-238 20170503_COFA Dan River Active Secondary Ash Basin Dam Scope -1