NCG030433_Email RE Cu and Zn Tier Relief in New Permit Cycle_20220412

Georgoulias, Bethany
From: Georgoulias, Bethany
Sent: Tuesday, April 12, 2022 3:24 PM
To: 'Madison Paul'
Cc: Azarelo, James; Carson, Brittany
Subject: RE: Cu & Zn Exemption Letter for Wolfspeed (FKA Cree,lnc)
Madison,
I apologize for not getting back to you sooner. We recently had a discussion with our regional offices about this, and I
forgot to circle back after that.
The conclusion was that normally the Tiers and benchmark exceedance count starts back over at the new renewal of
the General Permit. This means the permittee should sample quarterly (new schedule for most permits) and follow tier
responses as needed. The count of exceedances starts over at the new permit effective date, so consecutive
exceedances won't happen until at least two quarters in. We do understand some sites may be headed for the same
pattern and will have to engage the regional office again. The exception is when Tier relief from more frequent
monitoring is granted very close to the end of a permit cycle (within the last six months). Then the Region's letter
should address it specifically and extend the relief from monthly monitoring into the new permit cycle if they deem it
appropriate.
It is the opposite scenario that I remembered persisting into the next permit. Our permits have language that explain a
permittee should continue monthly monitoring if in Tier 2 or 3 already when the new permit starts. I don't think the text
does addresses the situation when tier relief from monthly monitoring has been granted previously.
I hope this helps clarify things. Thank you for reaching back out to me. If you have further questions, please contact our
General Permits coordinator, Brittany Carson.
Best regards,
Bethany Georgoulias (she/her)
Environmental Engineer
Stormwater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 707 3641 office
[e-mail]
512 N. Salisbury Street, Raleigh, NC 27604 (location)
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
Website: http://deq.nc.gov/about/divisions/energy-mineral-land-resources/stormwater
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Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or
are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging
time.
From: Madison Paul <Madison.Paul @wolfspeed.com>
Sent: Tuesday, April 12, 2022 2:45 PM
To: Georgoulias, Bethany <[e-mail]>
Cc: Azarelo, James <[e-mail]>
Subject: RE: [External] Cu & Zn Exemption Letter for Wolfspeed (FKA Cree,Inc)
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Hi Bethany,
I am just following up on this to see if your team had a chance to look into this.
Thanks!
Madison
From: Madison Paul
Sent: Friday, March 11, 2022 10:25 AM
To: Georgoulias, Bethany<[e-mail]>
Cc: Azarelo, James <[e-mail]>
Subject: RE: [External] Cu & Zn Exemption Letter for Wolfspeed (FKA Cree,Inc)
No worries! We are also stretch a little thin as well!
I appreciate you all looking into this for me.
Again, if you have any further questions, feel free to reach out.
Thanks!
Madison
From: Georgoulias, Bethany<[e-mail]>
Sent: Friday, March 11, 2022 10:07 AM
To: Madison Paul <Madison.Paul @wolfspeed.com>
Cc: Azarelo, James <[e-mail]>
Subject: RE: [External] Cu & Zn Exemption Letter for Wolfspeed (FKA Cree,Inc)
**This email originated from outside Wolfspeed.** Be careful opening attachments or clicking on links.
Good morning, Madison,
I apologize for the delayed response. Our Program is down several staff (including a supervisor), and we just hired a new
Program Administrative Assistant last week. We are stretched a little thin these days!

I believe the Tier relief was meant to persist at renewal as long as the circumstances haven't changed, but I'll need to
look into it further. I'll try to get back to you as soon as I can next week.
Best regards,
Bethany Georgoulias (she/her)
Environmental Engineer
Stormwater Program, Division of Energy, Mineral, and Land Resources
N.C. Department of Environmental Quality
919 707 3641 office
bethany.georgoulias@ncdenngov
512 N. Salisbury Street, Raleigh, NC 27604 (location)
1612 Mail Service Center, Raleigh, NC 27699-1612 (mailing)
Website: http://deq.nc.gov/about/divisions/energy-mineral-land-resources/stormwater
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties
Based on the current guidance to minimize the spread of COVID-19, the Department of Environmental Quality has
adjusted operations to protect the health and safety of the staff and public. Many employees are working remotely or
are on staggered shifts. To accommodate these staffing changes, all DEQ office locations are limiting public access to
appointments only. Please check with the appropriate staff before visiting our offices, as we may be able to handle your
requests by phone or email. We appreciate your patience as we continue to serve the public during this challenging
time.
From: Madison Paul [mailto:[e-mail]]
Sent: Wednesday, March 9, 2022 3:49 PM
To: Georgoulias, Bethany<[e-mail]>
Cc: Azarelo, James <[e-mail]>
Subject: [External] Cu & Zn Exemption Letter for Wolfspeed (FKA Cree,lnc)
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Good Afternoon,
My name is Madison Paul and I am the Environmental Engineer in charge of Stormwater at Wolfspeed's two facilities in
NC (4600 Silicon Dr., Durham & 3028 E. Cornwallis Dr. RTP)
Currently, these two facilities have exemption for Copper and Zinc when it comes to our stormwater sampling (see
attached letters). They were issued to us back in 2014/2015.
Could you help out with clarifying the language in the letter about when/if this exemption has an expiration date?
If the exemption does have an expiration, could we process a request to renew the exemption?

Based on our sampling over time, we are still experiencing higher levels of Cu and Zn at our sampling points. Our
operations have changed, however, we do not have any processes that produce any dusts/exhausts of Cu or Zn that
could impact our stormwater outfalls.
Please let me know if you have any questions, and feel free to either email me back or call me at 919-407-4756.
Thank you!
Madison
Madison Paul
ojfp(�d (she/her)
Environmental Engineer, Environment, Health & Safety
4600 Silicon Dr. Durham,NC 27703
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www.wolfspeed.com
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