NCG030461_Emails RE Cu and Zn Tier Relief_20200720

Georgoulias, Bethany
From: Khan, Zahid
Sent: Tuesday, July 20, 2021 12:03 PM
To: Herron, Laura J
Cc: Georgoulias, Bethany
Subject: RE: [External] Core & Main Cleveland, NC Stormwater Permit # NCG030461, Rowan
County
I believe James Moore already talked with you. Let me know if you have any other questions.
Thanks
Zaa /�iia�r, Ok cPEsc, cPsWe
Zahid.Khan(@ncdenr.gov
Regional Engineer
North Carolina Dept. of Environmental Quality Div. of Energy, Mineral, and Land Resources -
Land Quality Section 610 E. Center Ave., Suite 301 Mooresville, NC 28115
Ph: [phone] Fax: [phone]
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From: Herron, Laura J [mailto:[e-mail]]
Sent: Tuesday, July 20, 2021 10:44 AM
To: Khan, Zahid <[e-mail]>
Cc: Georgoulias, Bethany <[e-mail]>
Subject: [External] Core & Main Cleveland, NC Stormwater Permit # NCG030461, Rowan County
Importance: High
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Good morning Mr. Khan,
I have attached an August 18, 2017 letter that was sent to the above facility from you regarding their copper and zinc
concentration exceedances in their two stormwater outfalls. It provides relief from monthly monitoring and returns the
facility to a semi-annual monitoring status which they have currently been operating under. It is my understanding from
speaking with facility representatives you have visited the facility previously and this letter was generated from that
visit.
The facility continues to have struggles with sporadic copper and zinc exceedances in their semi-annual samples from
their two outfalls. The facility believes this letter relieves them of future Tier 2 and Tier 3 monitoring if they should have
consecutive exceedances of copper and zinc in their two outfalls. I would very much like to speak with you about the
context of this letter and the continued applicability of it.
Please note, I have previously sent an e-mail to Bethany Georgoulias who has helped me in the past regarding this issue
as I had incorrect contact info for you. I copied her on this e-mail to let her know I have contacted you.
Please call me on my cell when you are able — 727-743-2329, 1 would greatly appreciate it.
Thank you and I look forward to speaking with you!
LAURA J. HERRON, CIH, CHMM, CPEA, REM
PROJECT MANAGER I
APTIM I ENVIRONMENTAL & SUSTAINABILITY
O 813 612 3602
M 727 743 2329
laura.herron(cDaptim.com
725 US Highway 301 South
Tampa, FL 33619
APTIM.com

Energy, Mineral
and [.and Resources
ENVIRONMENTAL QUALITY
August 18, 2017
GEM Fabrication of North Carolina Inc.
Attention: Gregory Smith
10230 Statesville Road
Cleveland, North Carolina 27013
Subject:: Relief from Monthly Monitoring
Stormwater Permit # NCG030461
GEM Fabrication of North Carolina Inc.
Rowan County
Dear Mr. Smith:
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
TRACY E. DAVIS
Director
We are in receipt of your July 17, 2017 letter requesting relief from monthly monitoring at the Ceveland facility. Based on the site
inspection May 4, 2017 and the information provided the facility is in compliance with the tiered response actions and other conditions of
the NCG030000 General 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 semi-annual analytical monitoring for the remainder of the current permit term which
expires on October 31, 2017. 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. When the new general permit is
issued you will need to review the new copper and zinc benchmarks and follow the applicable relief measures if required.
You must notify this office, in writing, within five business days if you become aware of any 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 GEM Fabrication of North Carolina Inc. If industrial practices change and copper or zinc does become a
significant stormwater exposure risk or significant zinc or copper values have been recorded during regular sampling events, then this
office reserves the right to withdraw this decision and reinstate the permit specified tiered response or other actions that may be
warranted by the new set of circumstances.
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 at 704-663-1699,
Sincerely,
d�PQ _/ • I, --
Zahid S. Khan, CPM, CPESC, CPSWQ
Regional Engineer
Land Quality Section
cc: Bathany Georgoulias-Stormwater Permitting Program (via e-mail
State of North Carolina 1 Environmental Quality ; Energy, Mineral and Land Resources
Mooresville Regional Office I, 610 East Center Ave Ste 301 1 Mooresville, NC 28115
704 663 ! 699