NCG200513_ROS Approval_20210802

DocuSign Envelope ID: CEE77388-FF00-4867-809B-OA6381OC4126
ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
United Scrap Metal NC, LLC
Attention: John Dergo
9925 Brookford Street
Charlotte, North Carolina 28273
Subject: NPDES Stormwater Permit
4a 5 M
NORTH CAROLINA
t nWroarnentat Quality
August 2, 2021
Stormwater Permit Certificate of Coverage No. NCG200513
Representative Outfall Status 1 Tier Monitoring Relief
United Scrap Metal NC, LLC
Mecklenburg County
Dear Mr. Dergo:
The Mooresville Regional Office staff have reviewed your request dated July 28, 2021 for a determination that stormwater discharge
outfall (SDO) 002 be granted representative outfall status for stormwater outfalls 001 and 002 and that (SDO) 003 be granted
representative outfall status for stormwater outfalls 003 and 004. Based on past site inspections and the monitoring data, maps and
the TTS abatement plan provided, we are approving this request and also the request for Tier monitoring relief for copper and zinc. The
Tier relief is granted for the current permit term which expires on May 31, 2024. In accordance with 40 CFR §122.21(g)(7), you are
authorized to sample outfalls number 002 and 003 as a 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 remember that any actions you initiate in response to future benchmark exceedances as directed in the tiered response
provisions of your permit must address all drainage areas represented by SDO 002 and SDO 003 where appropriate.
Please append this letter to your Stormwater Pollution Prevention Plan (SPPP) or permit to document that representative outfall status
and Tier relief 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 and / or Tier relief 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].
Sincerely,
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Zahid S. Khan, CPM, CPESC, CPSWQ
Regional Engineer
Land Quality Section
Mooresville Regional Office
cc: Laserfiche Stormwater
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
4A P 704-663-I699