HomeMy WebLinkAboutNCS000571_Email Re: Cliffside Tier Status Notification_20221202Chandler, Jeffrey A
From: Eplin, Jerry W
Sent: Friday, December 2, 2022 11:22 AM
To: Chandler, Jeffrey A
Subject: FW: [External] Cliffside Tier Status Notification - NCS000571 (Laserfische Submittal)
For Laserfische.
From: Khan, Zahid <zahid.khan@ncdenr.gov>
Sent: Wednesday, November 30, 2022 4:14 PM
To: Eplin, Jerry W <jerry.eplin@ncdenr.gov>
Subject: FW: [External] Cliffside Tier Status Notification - NCS000571
For your review
From: Glenn, Elizabeth <Elizabeth.Glenn@duke-energy.com>
Sent: Wednesday, November 30, 2022 4:01 PM
To: Khan, Zahid <zahid.khan@ncdenr.gov>; Georgoulias, Bethany<bethany.georgoulias@ncdenr.gov>
Cc: Young, Brianna A <Brianna.Young@ncdenr.gov>
Subject: [External] Cliffside Tier Status Notification - NCS000571
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Mr. Khan —
As directed by Part D., Section D-5 of the subject permit, a notification is required to the Mooresville Regional Office of
the sample results.
Results were received on 1111712022 for the sampling event of SW outfall SW016-42. Tier One status for Cu, Hg, Pb, Se,
Ag, and Zn was triggered by a sample result noted in the table below.
During the stormwater management inspection, it was noted that the drainage area contains additional heavy truck
traffic. The paved haul road recently received gravel on sections of pavement that could have contributed to the
benchmark exceedances. Additional BMP's have been installed along the haul road.
Additional information will be provided within one month, as directed by the permit.
Please let me know if you have any questions.
Thank you,
J. Elizabeth Glenn
Permitting & Compliance
Duke Energy, Environmental Services
Office: (980) 373 0530
Parameter Bench Mark Sample Results Units
SWO16-42 Copper 10 172 ug/L
SWO16-42
Mercury
12
91.1
ng/L
SWO16-42
Lead
75
90.6
ug/L
SWO16-42
Selenium
5
13.6
ug/L
SWO16-42
I Silver
0.3
1 0.318
ug/L
SWO16-42
I Zinc
126
1 520
ug/L