NC0004987_Approval of Repair-Scope 3 State Dam ID: CATAW-054_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 3
Marshall Active Ash Pond Dam
Catawba County
State Dam ID: CATAW - 054
Dear Mr. Hamrick:
ROY COOPER
Governor
MICHAEL S REGAN
Secretary
TRACY E. DAVIS
Director
RECEIVEMCDEWWR
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 September 18, 2014, as required by the Dam Safety Law of 1967.
The repair documentation pertaining to Scope 3 — (Active Ash Basin downstream erosion repair,
which also includes abandonment of rail spur drain lines near the dam crest) certified by Mr.
Biemann A. Martin, PE, CFM, ESP Associates, was received by our office on September 17,
2015.
An inspection of this dam was made by the Land Quality Section staff from the Mooresville
Regional Office on July 20, 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 1 Energy, Mineral and Land Resources
1612 Mall Service Center 1 512 N Salisbury St I Raleigh, NC 27699
919 707 9200 T

Mr. George T. Hamrick
Marshall Active Ash Pond Dam
Final Approval of Repair -Scope 3 CATAW-054
February 2, 2017 Page 2 of 2
Please contact the Mooresville 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 Biemann A. Martin, PE, CFM, ESP Associates
Mr. Zahid Khan, PE, CPM, CPESC, CPSWQ DEMLR Regional Engineer
Mr. Jeff Poupart, Division of Water Resources
Mr. Randy Hart, Duke Energy
Filename CATAW-054 20170202_COFA Marshall Active Ash Pond Dam—Scope-3