NC0004979_Completion Notification_20180719

t DUKE EHS CCP Environmental Programs
ENERGY® Duke Energy
EC13K
526 South Church Street
Charlotte,NC 28202
Jul. 19, 2018
Mr. Jeff Poupart,
NC DWR Permitting Section
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Temporary Construction Dewatering — Completion Notification RECEIVEDIDENWCWR
Allen Steam Station JUL 2 0 201$
NC0004979
Gaston County
Watertttng ReSgect on
Dear Mr. Poupart:
urce
This letter is in reference to the September 21, 2017 notification and conversationsPermtwith Mr.
sn
Shannon Langley of Duke Energy regarding construction projects in order to comply with
requirements of the North Carolina Coal Ash Management Act (CAMA), specifically redirecting
wastewaters from the ash basins. A temporary construction dewatering well network was
installed to sufficiently lower the groundwater table in order to construct the lined retention basin
for the Site's overall water redirect project.
Construction dewatering for the lined retention basin installation commenced on August 28,
2017, pumping began October 25, 2017, and concluded on July 8, 2018. The dewatering
equipment will be disassembled and removed from the site. These dewatering wells will be
abandoned per 15A NCAC 02C .0113 and well abandonment records will be submitted as
required per 15A NCAC 02C .0114.
If there are any questions concerning this matter, please contact Elizabeth Glenn at (980) 373-
0530.
Sincerely,
J. Elizabeth Glenn
Sr. Environmental Specialist
Cc: Brandy Costner- NC DEQ Mooresville Regional Office
Julie Grzyb - NC DWR Raleigh Central Office