NCG090033_Valspar Industrial Monitoring Letter_20230522

Charlotte -Mecklenburg
STORM
WATER
Services
May 22, 2023
The Sherwin-Williams Company (Valspar)
Attn: Monty Gibson, EHS Manager
10300 Claude Freeman Drive
Charlotte, NC 28262
Subject: Stormwater Monitoring
Valspar
StormWater.CharMeck.org
On April 26,2023, Lauren Goyne of Charlotte -Mecklenburg Storm Water Services (CMSWS)
sampled stormwater runoff from the subject facility located at 10300 Claude Freeman Drive in
Charlotte, North Carolina. The monitoring was conducted under authority granted by Charlotte
City Code Chapter 18, Section 18-82.
The monitoring was also conducted as part of a cooperative working agreement between
Mecklenburg County and the North Carolina Department of Environmental Quality (NCDEQ) —
Division of Energy, Mineral and Land Resources (DEMLR). NCDEQ — DEMLR has been copied
on this report and made aware of monitoring results regarding the facility's NPDES permit.
Total rainfall during the rain event in which samples were collected at your facility was 0.24".
Rainfall data was reported by the United States Geologic Survey (USGS) real-time station CRN-
58 (Rain Gauge at Mallard Elementary). CMSWS sampled stormwater runoff from Outfall 001.
A summary table of results is attached to this report.
Please see the attached table for more information on your monitoring results. CMSWS analyzed
the monitoring results from your facility by comparing them to Storm Water Permit benchmark
parameters as well as to local and state stream standards (CMSWS Action Levels and North
Carolina Water Quality Standards). The results indicate that the analyzed parameters did not
exceed the benchmark parameters or local and state stream standards.
Based on this analysis, CMSWS recommends that you continue to conduct proper outdoor
processes, material storage practices and overall housekeeping at your facility.
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13 Clad Suttlotte, Avenue Charlotte.
East . Street
82
Charlotte, NC 28208 Charotte. NC 282i72
charlottenc.gov

Valspar
May 22, 2023
Page 2
Please contact me at [phone] if you have any questions or need additional information.
For questions specifically regarding NPDES stormwater permitting, please contact Jeffery
Chandler with NCDEQ — DEMLR at [phone].
Sincerely,
Michael Schley
Environmental Specialist II
Charlotte -Mecklenburg Storm Water Services
Attachment
cc: Andrew DeCristofaro, City of Charlotte
Jerry Eplin, NCDEQ - DEMLR
Zahid Khan, NCDEQ — DEMLR
Jeffrey Chandler, NCDEQ - DEMLR