NC0004987_Draft Permit Ltr_20200706

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
S. DANIEL SMITH
Director
Mr. Paul Draovitch, Senior Vice President
Environmental, Health and Safety
Duke Energy Carolinas, LLC
Mail Code EC13K
P.O. Box 1006
Charlotte, North Carolina 28201-1006
Dear Mr. Draovitch:
NORTH CAROLINA
Environmental Quality
July 6, 2020
Subject: Draft NPDES Major Modification
Permit NC0004987
Marshall Steam Station
Catawba County
Facility Class I
The Division has received your request to increase flow limit to 3.0 MGD for the dewatering
phase (Outfall 002) due to the need to incorporate wastewater from the remediation project. The
request has been granted. Enclosed with this letter is the modified permit. Please review this permit
carefully to ensure thorough understanding of the conditions and requirements it contains.
The draft permit modification contains the following significant changes from your current
permit:
• The flow limit for Outfall 002 (dewatering phase) was increased to 3.0 MGD.
Please provide any comments you have regarding the draft permit to this office by
August 12, 2020. At this time, the Division is also publishing a notice in the newspapers of general
circulation in Catawba County, inviting public comment on the Draft Modification. Following the 30-
day comment period, we will review all pertinent comments received and take appropriate action on
the permit modification.
D�� North Carolina Department of Environmental Quality I Division of Water Resources
E Q
_ 512 North Salisbury Street 1 1617 Mail Service Center I Raleigh, North Carolina 27699-1617
NORTH CARD OapartmeM ofEnviw
ronmenWl Uualfty /`� 919.707.9000

If you have any questions about the NPDES permit process, please contact me at the
following e-mail address: [e-mail], or telephone number: 919-707-3606.
Sincerely,
Sergei Chernikov, Ph.D.
Environmental Engineer III
Industrial NPDES Permitting Unit
cc: Central Files
NPDES Files
EPA Region IV (e-copy)
Mooresville Regional Office/Water Quality (e-copy)
Mooresville Regional Office/PWS (e-copy)
WSS/Aquatic Toxicology Unit (e-copy)