Monitoring Letter FINAL_20160916

Water Resources
ENVIRONMENTAL QUALITY
Harry K. Sideris
Senior Vice President
Environmental, Health & Safety
Duke Energy
526 South Church Street
Mail Code EC3XP
Charlotte, North Carolina 28202
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secretary
S. JAY ZIMMERMAN
September 16, 2016 D,,ector
Subject: Facility Interim Monitoring Plans and Sampling Schedules
Dear Mr. Sideris:
This letter is to inform Duke Energy to continue sampling per the Interim Monitoring Plans
submitted as part of the Comprehensive Site Assessments for each of the 14 coal ash facilities in
North Carolina. Since the Corrective Action Plans (CAPS) have not been approved by the North
Carolina Department of Environmental Quality's Division of Water Resources (DWR), Duke
Energy must continue the scope of work for groundwater/surface water sampling outlined in the
Interim Monitoring Plans until otherwise directed. The Effectiveness Monitoring Plans proposed
in the Corrective Action Plans (Part 2) cannot be implemented until the CAPs are approved. The
interim monitoring events should be conducted quarterly and will include at least a subset of the
recently installed data gap wells at each facility. Direction regarding adding additional wells to
the plans will be provided by the DWR Regional Offices.
If you have any questions, please feel free to contact Steve Lanter at [phone].
Sincerely,
vc-cam--®
*aZ' erman, P.G., Director
Division of Water Resources
cc: WQROS Regional Offices
WQROS Central File Copy
State of North Carolina I Environmental Quality I Water Resources
1617 Mail service Curter I Raleigh, North Carolina 27699-1617
919 707 9000