NCG030246_Representative Outfall Status Initial Request_20260526

ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
TRACY E. DAVIS
Energy,Mineral Director
and Land Resources
ENVIRONMENTAL QUALITY
August 18, 2017
Corning Incorporated
Hickory Manufacturing and Technical Center
Attention: Steve Street
Post Office Box 489
Hickory,North Carolina 28603
Subject: NPDES Stormwater Permit
Stormwater Certificate of Coverage No. NCG030246
Representative Outfall Status Request
Catawba County
Dear Mr. Street:
The Mooresville Regional Office staff have reviewed your 2017 request for a determination that stormwater
discharge outfall (SDO) 003 be granted representative outfall status for stormwater outfalls 001 and 002. Based
on the information provided and a June 27, 2017 site inspection, we are approving this request. In accordance
with 40 CFR §122.21(g)(7), you are authorized to sample outfalls number 003 and 005 as representative for the
entire site. .This approval is effective with the next sampling event.
Please append this letter to your Stormwater Pollution Prevention Plan (SPPP) or permit to document that
representative outfall status has been approved. If changes in drainage areas, structures, processes, storage
practices, or other activities occur that significantly alter the basis of this approval, representative outfall status
may no longer be valid. You should either resume sampling at all SDOs, or reapply to this office for
representative outfall status based on updated information. If you have any questions or comments concerning
this letter, please contact our Office at [phone].
Sincerely,
3r.-1--t [6--
Zahid S. Khan, CPM, CPESC, CPSWQ
Regional Engineer
Land Quality Section
ZSK/cys
cc: Bethany Georgoulias, Stormwater Permitting Program,NCG030246
State of North Carolina I Environmental Quality I Energy,Mineral and Land Resources
Mooresville Regional Office 1610 East Center Ave Ste 301 I Mooresville,NC 28115
704 663 1699 T