NC0004987_Sampling Requirements-Outfalls 101-102_20171211

DUKE
ENERGY
Dec. 11, 2017
Mr. Jeff Poupart, Section Chief
NC DWR Permitting Section
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Sampling Requirements for NPDES Outfalls 10 1- 102
Stormwater Marshall Steam Station
NPDES Permit #: NC0004987
Catawba County
Dear Mr. Poupart:
In accordance with requirements in NPDES Permit NC0004987 Part LA.8 & 9 Note 2. Duke Energy
Carolinas, LLC (Duke) will reduce the sampling frequency for the subject outfalls to quarterly beginning
in January 2018. One year of monthly sampling has taken place for these outfalls as required.
Duke hereby requests that DEQ update the BIMS database system to accept quarterly samples for these
outfalls in accordance with the terms of the permit.
If there are any questions about this matter, please contact Brad Loveland [phone].
Sincerely,
E. Shannon Langley
Lead Environmental Sp�.;ian3L
cc:
Richard E. Baker, Jr. - via email
Brad Loveland/Filenet — via email
Charles Weaver — NC DWR 1617 Mail Service Center Raleigh, NC 27699-1617
Corey Basinger, DEQ Mooresville -610 East Center Avenue, Suite 301, Mooresville, NC 28115