NC0004961_Notice of Closure of WW Outfall_20170324

DUKE
ENERGY.
CAROLINAS
March 24, 2017
Attn: Andrew Pitner
North Carolina Dept. of Environmental Quality
610 East Center Ave. Suite 301
Mooresville, NC 28115
EHS CCP Environmental Programs
Duke Energy
526 South Church Street
Charlotte, NC 28202
Mailing Address
EC13K I P.O Box 1006
Charlotte NC 28201-1006
MUM
Subject: Duke Energy Carolinas, LLC. MAR 2 7 2017
Notice of Closure of Wastewater Outfall 001 wat®I'Quality
Riverbend Steam Station (NC0004961) — Gaston County Pemkihig8ecti®n
Dear Mr. Pitner,
in accordance with the requirements of Part III of NPDES wastewater permit NC0004961, Duke Energy is
hereby providing no0ceofclosure for Outfall CM, oncethroughcoofingwateratRi ierbend Station in Gaston
County, NC. Riverbend is a retired facility and expecting full closure by 2019.
Duke plans to permanently close the Discharge Tunnel at the Riverbend Steam Station, Outfall 001.
Stop logs will be installed at the end of the tunnel and once installed and sealed, dewatering of the
tunnel will occur. Once the tunnel is dewatered, flowable fill mix will be used to permanently fill in the
tunnel.
At the completion of the filling process, stop logs will be left in place and the Discharge Tunnel Outlet
Structure will be left in place. Demolition of structures above grade will occur at a later date.
Please direct any correspondence or questions concerning the Riverbend Steam Station NPDES
Permitting and Compliance to Brad Loveland @ 704-609-5637.
"I certify, under penulty allow, that this document and oil attachments were prepared under my direction or supervis/on In
accordance with a system designed to assure that quohfied personnel properly gather and evaluate the information submitted.
Based an my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the
Information, the Informatron 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 fines and imprisonment for
knowing violations."
Sincerely,
Tim Hill
GM CCP Regional Operations & Maintenance
CC: Brad Loveland
Rick Massey
Ronnie Goodman