NC0003433_Approval of Repair-Scope 1 State Dam ID:CHATH-075_20170202

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
Final Approval of Repair
February 2, 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
Cape Fear 1956 Ash Basin Dam
Chatham County
State Dam ID: CHATH - 075
Dear Mr. Hamrick:
ROY COOPER
Governor
MICHAEL S REGAN
Secretary
TRACY E DAVIS
Director
RECEIVEDINCDEWWR
FEB 1 6 2017
Water Quality
Permitting Section
This correspondence concerns the referenced high hazard dam repaired pursuant to issuance of
an Approval of Repair dated March 6, 2015, as required by the Dam Safety Law of 1967. The
repair documentation pertaining to Scope 1— (Engineered repair plan to permanently abandon
the three risers (grout), and the engineering design for ash excavation to establish design storm
freeboard capacity) certified by Mr. Lester Lowe, PE, AMEC, was received by our office on
February 5, 2016.
An inspection of this dam was made by the Land Quality Section staff from the Raleigh Regional
Office on June 16, 2016. 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 Cape Fear 1956 Ash Basin Dam
Final Approval of Repair -Scope 1 CHATH-075
February 2, 2017 Page 2 of 2
Please contact the Raleigh 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
_ 11T
cc: Mr. Lester Lowe, PE, AMEC
Mr. John Holley, PE, DEMLR Regional Engineer
Mr. Jeff Poupart, Division of Water Resources
Mr. Randy Hart, Duke Energy
File Name CHATH-075 20170202_COFA Cape Fear 1956 Ash Pond Scope -1