NCG030139_ROS Approval for Outfall 002_20211006

DocuSign Envelope ID: ECA2853E-0618-40F4-8492-DE4B4F47D4B5
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
Mueller Systems
Attention: John Small
10210 Statesville Boulevard
Cleveland, North Carolina 27013
Dear Mr. Small:
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NORTH CAROLINA
Envtroamentat QualtW
October 6, 2021
Subject: NPDES Stormwater Permit
Stormwater Permit Certificate of Coverage No. NCG030139
Representative Outfall Status
Mueller Systems
Rowan County
The Mooresville Regional Office staff have reviewed your request dated September 15, 2021 for a
determination that stormwater discharge outfall (SDO) 002 be granted representative outfall status for
stormwater outfalls 001 and 002. Based on a site inspection September 15, 2021 and the monitoring
data submitted, we are approving this request. In accordance with 40 CFR §122.21(g)(7), you are
authorized to sample outfall number 002 as the representative outfall for the site. This approval is
effective with the next sampling event. We also want to remind you that the permit still requires
Qualitative Monitoring be performed at all SDOs, regardless of representative status.
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 James Moore at [phone].
cc: Laserfiche Stormwater
Sincerely,
��OmuSigned by:
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Zahid S. Khan, CPM, CPESC, CPSWQ
Regional Engineer
Land Quality Section
Mooresville Regional Office
North Carolina Department of Environmental Quality I Division of Energy. Mineral and Land Resources
Mooresville Regional Office 1 610 East Center Avenue, Suite 3011 Mooresville, North Carolina 28115
704-663-1699