NCG030085_Daimler Trucks Monitoring Releif_20220215

ROY COOPER
Governor
ELIZABETH S. BISER
Secretary
BRIAN WRENN
Director
February 15, 2022
Daimler Trucks North America, LLC
Attention: Craig Redshaw
1800 North Main Street
Mount Holly, North Carolina 28120
Subject: Relief from Monthly Monitoring
Stormwater Permit # NCG030085
Daimler Trucks North America, LLC
Gaston County
Dear Mr. Redshaw:
We are in receipt of your January 24, 2022 letter requesting relief from monthly monitoring at the
Daimler Trucks North America, LLC Mount Holly plant. Based on past site inspections, including January
20, 2022 and email correspondence regarding copper and zinc, the facility is in compliance with the
tiered response actions and other conditions of the NCG030085 Permit. Therefore, the Division is
granting regulatory relief from the Tier responses. Upon receipt of this letter, the subject facility may
resume the permit specified quarterly analytical monitoring for the remainder of the current permit term
which expires on June 30, 2026. This decision applies only to the copper and zinc benchmarks. A
benchmark exceedance of any other parameter listed in your permit will trigger the tiered response
actions as described in the general permit.
You must notify this office, in writing, within five business days if you become aware of any
other significant source of copper or zinc at your facility that has the potential to be exposed to
stormwater. The relief granted in this letter is contingent upon the current industrial practices at the
Daimler Trucks North America, LLC Mount Holly plant. Please retain and append this letter to your
Stormwater Pollution Prevention Plan (SPPP) or permit. If you have any questions or comments
concerning this letter, please contact me or James Moore at 704-663-1699.
cc: Stormwater Laserfiche
Sincerely,
for Zahid S. Khan, CPM, CPESC, CPSWQ
Regional Engineer
Land Quality Section
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