1117_Buncombe_GARAA_InitialWQMPChangeDenial_FID1892462_20240405

Moutos, Sarah
From: Moutos, Sarah
Sent: Friday, April 5, 2024 10:34 AM
To: Toepfer, John R
Cc: Stanley, Sherri; Werner, Elizabeth; Witt, Kimberlee; Healy, Ashley Lisbeth; Kelly Ferri
Subject: RE: [EXTERNAL] GARAA GWMR Proposed Changes, Permit 1117
Good morning John,
The Section appreciates your email request to change the following:
Groundwater and Surface Water Samples
Drop alkalinity, aluminum, bicarbonate, carbonate, sodium, total suspended solids (TSS) and strontium.
Add Fluoride, lithium, nitrate (as N) and silver
Surface Water Samples
Decrease sampling all total and dissolved metals in surface water samples due to the majority of metals not having a
dissolved surface water criteria.
Revise sampling plan to total and dissolved beryllium, cadmium, chromium, copper, lead, nickel, selenium, silver and
zinc.
After careful consideration, the Section will not be able to grant any decreases in sampling protocols. This reasoning is
due to the agreed upon requirements in the settlement agreement. However, should Duke Energy want to add Fluoride,
lithium, nitrate (as N) and silver to the groundwater and surface water sampling list, we would be agreeable.
Should Duke Energy want to further discuss, feel free to reach out to us.
Have a great weekend.
Sarah
Sarah M Moutos
Environmental Program Consultant
Division of Waste Management — Solid Waste Section
North Carolina Department of Environmental Quality
919-707-8287 (phone and fax)
Sarah. MoutosCa)deq. nc.gov
Physical Address and Fed Ex: 217 West Jones Street, Raleigh, NC 27603
Mailing Address and Postal Mail: 1646 Mail Service Center, Raleigh, NC 27699-1646
J. Q
0Qr dmOl or F-irO..tWAI 0.11.
NCDEQ: Solid Waste Section
NCDEQ; Solid Waste Section fmancia/Assurance (Effective July 1, 2020; REVISED RULES)
Please note my email address has changed to Sarah.MoutosOdemnc, nov , Please update my point of contact
information.
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties.

From: Toepfer, John R <[e-mail]>
Sent: Friday, March 8, 2024 2:38 PM
To: Moutos, Sarah <[e-mail]>
Cc: Stanley, Sherri <[e-mail]>; Kelly Ferri <[e-mail]>; Witt, Kimberlee
<[e-mail]>; Healy, Ashley Lisbeth <[e-mail]>
Subject: RE: [EXTERNAL] GARAA GWMR Proposed Changes, Permit 1117
CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message
button located on your Outlook menu bar on the Home tab.
Sarah — Duke Energy requests to change the groundwater and surface water sampling constituent list for the Asheville
Airport to the current list of COls for coal ash landfills (attached table).
What would this change — alkalinity, aluminum, bicarbonate, carbonate, sodium, total suspended solids (TSS) and
strontium would be dropped from present groundwater and surface water monitoring at the Airport
Fluoride, lithium, nitrate (as N) and silver would be added to groundwater and surface water monitoring at the Airport
(please note present surface water monitoring already includes fluoride and silver).
Also, only beryllium, cadmium, chromium, copper, lead, nickel, selenium, silver and zinc would be analyzed for total and
dissolved in surface waters sampling. Presently, all metals are analyzed for totals and dissolved in surface water
sampling which does not make sense as the majority of metals do not have a dissolved surface water criteria.
I also attach a requested figure showing the surface water sampling locations for Area 1. Per our meeting in the fall of
2023, a one-time surface water sampling event was completed (November 2023) for the storm water basins and SW-10
was to replace sampling points SW-413 and SW-4C. This leads to surface water sampling at locations (assuming sufficient
flow to sample) SW-2 (background), SW-9 (end 15" RCP), new point SW-10, SW-5 and SW-3 (before leaving Airport
property). Surface water sampling points SW-8 and SW-6 were destroyed by the Area 1 cover project and have not
returned.
Please let me know of questions. thanks
John R. Toepfer, P.E.
Duke Energy
Lead Engineer
410 S. Wilmington Street/NC3
Raleigh, NC 27601
919-546-7863 phone
919-632-3714 cell
From: Moutos, Sarah <[e-mail]>
Sent: Monday, March 4, 2024 8:10 AM
To: Toepfer, John R <[e-mail]>

Cc: Stanley, Sherri <[e-mail]>; Kelly Ferri <[e-mail]>
Subject: [EXTERNAL] GARAA GWMR Proposed Changes, Permit 1117
Good Morning John,
The Section is working on any loose ends with GARAA. We would like to get a formal request with the proposed
constituent changes to the groundwater monitoring sampling plan to review and get back to you. At your convenience,
we look forward to continuing this discussion.
Feel free to reach out with any questions or concerns.
Regards,
Sarah
Sarah M Moutos
Environmental Program Consultant
Division of Waste Management — Solid Waste Section
North Carolina Department of Environmental Quality
919-707-8287 (phone and fax)
Sarah. [e-mail]
Physical Address and Fed Ex: 217 West Jones Street, Raleigh, NC 27603
Mailing Address and Postal Mail: 1646 Mail Service Center, Raleigh, NC 27699-1646
DE
DI"rbWtm E—ironmenial O=l'r
NCDEO. Solid Waste Section
NCDEQ; Solid Waste Section Financial Assurance (Effective July 1, 2020; REVISED RULES)
Please note my email address has changed to Sarah.MoutosOdemnc, nov. , Please update my point of contact
information.
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third parties.
Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized
state official.