Mayo Coal Pile Assessment Comments Letter_20190214

ROY COOPER
Governor
HCHAEL S. REGAN
Secretary
LINDA CULPEPPER
Director
Paul Draovitch
Senior Vice President
Environmental, Health & Safety
Duke Energy
526 South Church Street
Mail Code EC3XP
Charlotte, North Carolina 28202
NORTH CAROLINA
Environmental Qualtty
February 14, 2019
Subject: Mayo Steam Electric Plant Coal Pile Groundwater Assessment Plan Comments
Dear Mr. Draovitch:
On January 24, 2019, the North Carolina Department of Environmental Quality Division of Water
Resources (Division) received the proposed Groundwater Assessment Plan for the Coal Pile at the
Mayo Steam Electric Plant. The Division has reviewed and hereby approves the proposed
assessment activities under the condition that the following items are addressed as part of the plan
implementation and the results reported in the facilities updated Corrective Action Plan (CAP).
• If the physical well locations of the proposed monitoring wells deviate by approximately
one hundred (100) feet from the original proposed locations, please contact the Raleigh
Regional Office prior to boring/well installation.
If applicable, the results should also be incorporated into the updated CAP's revised geochemical
and groundwater fate and transport models. If the results of the modeling show current or future
impacts to groundwater and/or surface water from this area, then appropriate remedial strategies
shall be proposed in the CAP.
If you have any questions, please contact Eric Rice (Raleigh Regional Office) at [phone]
or Steve Lanter (Central Office) at [phone].
OPO 'A North Carolina Department of Environmental Quality Division of Water Resources
Q512 North Salisbury Street 1 1636 Mail Service Center Raleigh, North Carolina 27699-1636
W,*ua;=
a.r.r.Ww.++r....ti+m+a 919.707.9000

Sincerely,
Jon Ri ard, Chief
Animal Feeding Operations and Groundwater Section
cc: RRO WQROS Regional Office
WQROS Central File Copy