NC0000396_Seep Management Amendment_20220418

40.
ROY COOPER dr e r` 4 .,
Governor %)�
ELIZABETH S. BISER \4,44 �,_.; .
Secretary
RICHARD E. ROGERS, JR.
Director NORTH CAROLINA
Environmental Quality
April 18, 2022
Ms. Jessica Bednarcik, Senior Vice President EHS
Duke Energy
526 S. Church Street
Mail Code EC3XP
Charlotte,NC 28202
Subject: Seep Management Amendment to Corrective Action Plan Conditional Approval
Duke Energy Progress, LLC—Asheville Steam Electric Plant
NPDES Permit NC0000396
Special Order by Consent S 17-010
Buncombe County
Dear Ms. Bednarcik:
On August 31, 2020, Duke Energy Progress, LLC (Duke Energy) submitted a Seep Management Plan
Amendment to the proposed Corrective Action Plan(CAP) for the Asheville Steam Electric Plant to
satisfy the terms of Section 2(b)(3)of Special Order by Consent(SOC) S17-010. The Department of
Environmental Quality(DEQ)has reviewed this submittal and hereby provides its conditional approval
of the Seep Management Plan as an amendment to initial groundwater Corrective Action Plan(CAP)
documents prepared for the site and submitted in November 2015 and February 2016. This approval
has been provided as conditional because it is anticipated that an updated, comprehensive CAP will be
submitted for this site.
This conditional approval shall remain effective until an updated CAP for the Asheville Steam Electric
Plant is approved, at which time the management of seeps will be regulated by its terms. Until the
monitoring of seeps is modified by the terms of an approved,updated CAP, Duke Energy shall
continue to conduct quarterly monitoring of sampling locations A-01, C-01, E-01 F-01, F-02 and N-01
Downstream. Reporting of the results of testing should continue to be submitted to DEQ via the email
address used for the reporting of SOC data([e-mail]). This conditional approval is also
cognizant of the potential for changes in the circumstances of the seeps at the site while it is in effect,
and DEQ reserves its rights to require additional or modified monitoring of seeps should circumstances
warrant.
This conditional approval is sufficient to activate the SOC termination provision for the Asheville
Steam Electric Plant found in Section 2(b)(4) of SOC S 17-010. As a result, the SOC shall terminate on
May 18, 2022 (30 days following the date of this letter).
North Carolina De artment of Environmental Qualit ( Division of Water Resources
p Y
E QJ� 512 North Salisbury Street Ibll Mail Service Center I Raleigh North Carolina 27699 1617
W u•n� /'� 919.707.9000

Ms. Jessica Bednarcik
Asheville Steam Electric Plant Seep Management Plan Conditional Approval/SOC Termination
p. 2
If you have any questions about this letter please contact Bob Sledge at(919) 707-3602 or via email at
[e-mail].
Sincerely,
"7-1---7
/V/
Richard E. Rogers, Jr
ec: Laserfiche Files
Jeff Poupart
Eric Smith
Landon Davidson-ARO
Shannon.Langley—Duke Energy
cc: SOC File