Cape Fear Coal Pile Assessment Comments 12-10-18

Ploy COOPER
cmww
MICHAEL S. REGAN
Slrr ar
LINDA CULPEPPER
Paul Draovitch
Senior Vice President
Environmental, Health & Safety
Duke Energy
526 South Church Street
Mail Code EC3XP
Charlotte, North Carolina 28202
r
l
NO�d�R�TH CAROLINA
1�i�1931'AIIF eittolqt outy
December 10, 2018
Subject: Cape Fear Steam Electric Plant Coal Pile Assessment Work Plan Comments
Dear Mr. Draovitch:
On November 19, 2018, the North Carolina Department of Environmental Quality Division of
Water Resources (Division) received the proposed Coal Pile Assessment Work Plan for the Cape
Fear 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 Comprehensive Site Assessment
(CSA).
Recommend a more focused, localized magnetometer survey of the interpreted north-
west/southeast-trending dike (as shown on Figure 1-3 from the Cape Fear CSA Supplement
1 Report) be conducted in the former coal pile and coal stockpile area. Ideally, the Division
would like to collect representative groundwater data from both upgradient and
downgradient of the dike to determine if there are any geochemical influences resulting
from its presence.
If applicable, the results should also be incorporated into the updated Corrective Action Plan
(CAP) 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.
North Carolina Department of Environmental Quality I Division of Water Resources I AFOGW Section
512 North Salisbury Street 11636 Mail Service Center j Raleigh, North Carolina 27699-1636
91-9.707.9129

If you have any questions, please contact Eric Rice (Raleigh Regional Office) at [phone]
or Steve Lanter (Central Office) at [phone].
Sincerely,
Jon Ris rd, Chief
Animal Feeding Operations and Groundwater Section
cc: RRO WQROS Regional Office
WQROS Central File Copy