NCG030095_ROS Approval_20221007

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
October 7, 2022
Stanadyne, LLC
Attn Jacob Davis
405 White Street
Jacksonville NC 28546
Subject: NPDES Stormwater Permit
Permit No. NCG030095
Representative Outfall Status Request
Stanadyne
Onslow County
Dear Mr. Davis:
NORTH CAROLINA
Environmental Quality
The Wilmington Regional Office staff have reviewed your request dated August 5, 2022 for a determination
that stormwater discharge outfall (SDO) 002 be granted representative outfall status for stormwater
outfalls 001, 003, 004, and 005. Based on the information and maps provided and the previous site visit, we
are approving this request. In accordance with 40 CFR §122.21(g)(7), you are authorized to sample outfall
number 002 as a representative outfall. 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 remember that any actions you initiate in response to benchmark exceedances as directed in the
tiered response provisions of your permit must address all drainage areas represented by SDO 002, where
appropriate.
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 Dan Sams or me at (910) 796-
7215 or at [e-mail].
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cc: Stormwater Program Permit File (signed copy to Laserfiche)
D_E QZ. North Carolina Department of Environmental Quality I Division of Energy, Mineral and Land Resources
Wilmington Regional Ofrice 1127 Cardinal Drive Extension I Wilmington, North Carolina 28405
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awni.na,..w.Aaia.wr 970.796.7215