NCG030078_Emails RE Cu Exceedances_20220726

Georgoulias, Bethany
From: Nicole Johnston <[e-mail]>
Sent: Tuesday, July 19, 2022 4:23 PM
To: Georgoulias, Bethany; Morman, Alaina
Cc: McDonnell, Jesse M
Subject: [External] Stormwater exceedances for Copper for NCG030078
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Bethany and Alaina and Jesse,
Per the general permit for CommScope, Inc. (NCG030000) Catawba Facility (under COC NCG030078), sampling was
completed on the following ROS Outfalls for the site on June 16t", 2022 with a rainfall event totaling 0.50" of rain. As of
the letter that CommScope, Inc. received from Zahid Kahn in June, they are now only sampling the following sites: 008
outfall, 009 outfall, and the pond (as all the other outfalls pretty much end up at the pond). Results were received from
the laboratory (Statesville Analytical) on Wednesday, July 6t", 2022. For this event, the following outfalls exceeded
benchmark values for the following parameters:
1) Outfall 008 - Copper result was 0.032 mg/L - exceeded benchmark of 0.010 mg/L
2) Outfall 009 -Copper result was 0.03 mg/L -exceeded benchmark of 0.010 mg/L
3) Pond -Copper result was 0.05 mg/L -exceeded benchmark of 0.010 mg/L
Please note that these exceedances will be documented in the SWPPP, and corrective action steps will be implemented
to reduce these exceedances. Furthermore, best management practices will be utilized to assist with reductions for
these parameters exceeding their respective benchmark values.
Please let me know if you need anything further, and hope you both have a very blessed day. Thank you for your
assistance with this matter. Please feel free to call me at 336-366-0870 if you need any further information.
Thanks
Nicole Johnston