NCS000571_Tier Status Notification_20221229

Chandler, Jeffrey A
From: Eplin, Jerry W
Sent: Thursday, December 29, 2022 1:09 PM
To: Chandler, Jeffrey A
Subject: FW: [External] Cliffside Tier Status Notification - NCS000571
Attachments: DOC122922-12292022.pdf
Please upload this email to Laserfiche and place a hard copy in the file.
Also, please upload the attached letter to Laserfiche. I already placed a hard copy of the attached document in the hard
copy files.
From: Eplin, Jerry W
Sent: Thursday, December 29, 2022 1:04 PM
To: [e-mail]
Cc: Khan, Zahid <[e-mail]>
Subject: RE: [External] Cliffside Tier Status Notification - NCS000571
Ms. Glenn:
NC DEQ has received your Tier Status Notification email (see below). NC DEQ has also
received an Action Plan related to Tier III Exceedances for SW004 and SW016 for the same
NPDES Permit number. Keep us informed of future monitoring results and how the proposed
actions from the Action Plan have impacted the results.
Regards,
Jerry W. Eplin, PE
Assistant Regional Engineer
North Carolina Department of Environmental Quality
Division of Energy, Mineral, and Land Resources
Office: [phone] x2147
Email: ierrv.eolinlcancdenr.aov
Physical and Mailing Address:
610 E. Center Ave. Suite 301
Mooresville, NC 28115
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From: Glenn, Elizabeth <[e-mail]>
Sent: Wednesday, November 30, 2022 4:01 PM
To: Khan, Zahid <[e-mail]>; Georgoulias, Bethany<[e-mail]>
Cc: Young, Brianna A <[e-mail]>
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: [phone]
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
Silver
0.3
0.318
ug/L
SWO16-42
Zinc
126
520
ug/L