NC0024406_EMC SOC WQS18-004_20191024

Ss DUKE James Wells
ENERGY® Vice President
Environmental,Health and Safety
Programs&Environmental Sciences
526 South Church Street
Charlotte, NC 28202
[phone]
October 24, 2019
Via Overnight Mail
Lon Snider
Winston Salem Regional Office Assistant Environmental Regional Supervisor
North Carolina Department of Environmental Quality
Division of Water Resources
450 West Hanes Mill Road, Suite 300
RECEIVED
Winston Salem, NC 27105 NOV 04 2019
Bob Sledge NCDEQIDWRINPDES
North Carolina Department of Environmental Quality
Water Quality Permitting Program
Division of Water Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Report Under Special Order by Consent— EMC SOC WQ S 18-004
Duke Energy Carolinas, LLC — Belews Creek Steam Station
NPDES Permit NC0024406
Quarterly Progress Report for 3rd Quarter 2019
Dear Messrs. Snider and Sledge:
On behalf of Duke Energy Carolinas, LLC (DEC), I am submitting to you the Belews Creek Steam
Station Progress Report summarizing the work and activities undertaken with respect to closure of
coal ash surface impoundments as required by the Belews Creek Steam Station NPDES Permit
NC0024406 Special Order by Consent (SOC), SOC No. S 18-004 Section 2.c.2).
As required by the SOC, I certify under penalty of law that this document and all attachments were
prepared under my direction or supervision in accordance with a system designed to assure that
qualified personnel properly gather and evaluate the information submitted. Based on my inquiry
of the person or persons who manage the system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of my knowledge and belief,
true, accurate, and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for knowing violations.

Messrs. Snider and Sledge
October 24, 2019
Page 2
Please direct any questions concerning the Belews Creek Steam Station SOC No. S 18-004 to
Joyce Dishmon at [phone].
Sincerely,
James ells
Vice P sident, Environment, Health & Safety-
Programs and Environmental Sciences
Duke Energy
Attachment
Belews Creek Steam Station Quarterly Progress Report
CC: Richard Baker, Duke Energy
Joyce Dishmon, Duke Energy
Brenda Johnson, Duke Energy
George Hamrick, Duke Energy
Paul Draovitch, Duke Energy
Matt Hanchey, Duke Energy
Randy Hart, Duke Energy

NPDES PERMIT NC0024406
SPECIAL ORDER BY CONSENT EMC SOC S18-004
QUARTERLY PROGRESS REPORT
BELEWS CREEK STEAM STATION
OCTOBER 24, 2019

Background and Summary
On July 12, 2018, Duke Energy Carolinas, LLC (DEC) and the North Carolina Environmental Management
Commission entered into a Special Order by Consent— EMC SOC 518-004 (SOC) applicable to the Belews
Creek Steam Station(Belews Creek). This report is submitted in accordance with Section 2.c.2)of the SOC.
In compliance with Section 2.c.2),this report summarizes the work and activities undertaken with respect
to decanting work and closure of coal ash surface impoundments at Belews Creek. The quarterly reports
are due no later than the last day of January, April, July, and October for the duration of the SOC, once
the decanting process has begun.
The Belews Creek Steam Station is located on Belews Lake in southeastern Stokes County, NC. Belews
Creek is a two-unit, 2240-megawatt coal-fired generating facility. The Station began commercial
operation in 1974 with Units 1 and 2.
Belews Creek operates one Ash Basin for storing wet sluiced Coal Combustion Residuals (CCR). The Ash
Basin was constructed from 1970 to 1972 and has been operational since 1974. It received bottom ash
sluiced from the Station until Q4 2018. Regular sluicing of fly ash ended in 1983 when the Station
converted to dry fly ash handling. The Ash Basin has an approximate area of 283 acres and has been an
integral part of the Station's wastewater treatment system. The current ash inventory of the Ash Basin is
approximately 12.0 million tons as of July 2019.
Decanting Status
ec g
In compliance with this SOC, Duke Energy initiated design and procurement efforts in Q3 2018 for a
decanting water treatment system at Belews Creek. Purchase Orders were awarded in Q4 2018 for the
civil pad and electrical infrastructure installations, as well as a Purchase Order for the OEM water
treatment supplier. Duke Energy completed installation and commissioning of the decanting water
treatment system on March 22, 2019 and commenced mechanical decanting on March 27, 2019. Duke
Energy provided advance notice for the projected start date of decanting to NCDEQ on March 8, 2019, as
required by the NPDES Permit, and written notification for the initiation of decanting per the SOC on April
2, 2019. Decanting was suspended on July 29, 2019 to allow for rerouting of the ash basin discharge to
the Dan River via new Outfall 006A. The new Outfall is completed and ready for service, pending receipt
of the NPDES permit. Through September 30, 2019, approximately 12 feet have been decanted from an
initial depth of 81 feet.
Belews Creek: 1