1812_DukeMarshall_RequestPh5 PiezAbandon_CLF24-504_FID2175488_20251231

Moutos, Sarah
From: Davin, Anne <[e-mail]>
Sent: Wednesday, December 31, 2025 5:36 PM
To: Moutos, Sarah
Cc: Yitbarek, Diana; Healy, Ashley Lisbeth; Hardin, Tyler; Werner, Elizabeth
Subject: [External] Duke Energy - Marshall - Piezometer CLF24-504 Abandonment Request
Attachments: 1812_Phase 5 Piezometer Abandonment Request CLF24-504 w cvr Itr.pdf
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INTERNAL
Hi Sarah,
To progress site closure activities and future landfill construction, Duke Energy requests approval to abandon
Industrial Landfill No.1 (1812-INDUS-2008; ILF) Phase 4 piezometers CLF24-504, located within the footprint of
Phase 5. The attached Site Vicinity Plan (Figure 1) has the piezometers requested for abandonment circled.
The piezometers were installed to support the Geotechnical Investigation for ILF Phase 5. It was installed in
September 2024, and collectively 15 months of groundwater elevation data have been collected. The last water
Level. measurements were collected on December 4, 2025, and currently shows a water level approximately 3.76 ft
Lower than the initial reading. The remaining piezometer in the Phase 5 area (CLF24-505) will remain in place to
continue to support the Geotechnical Investigation for ILF Phase 5.
Abandonment of the piezometers will be supervised by qualified geotechnical field support that is under the direct
supervision of and in contact with a Licensed Geologist. The piezometers will be abandoned by a North Carolina
licensed well contractor in accordance with subchapter 02C of the North Carolina Administrative Code. Duke
Energy will provide well abandonment logs to the Division upon completion of the field work.
If you need additional information regarding this request do not hesitate to email or call me at Anne. Davin@Du ke-
Energy.com or [phone]. To account for project schedules, Duke Energy would appreciate approval by
Monday, January 5.
Happy New Year!
Anne Davin, E.I.
Engineer I I Waste & Groundwater Programs
525 South Tryon Street I Charlotte, NC 28202 1 DEP-36A
Cell: [phone]
Anne.Davin(@duke-eneray.com
. DUKE
ENERGY.

INTERNAL
(' DUKE
ENERGY-.
December 22, 2025
North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
1646 Mail Service Center
Raleigh, NC 27699-1646
Attn: Ms. Elizabeth Werner (submitted electronically)
Re: Request for Approval to Abandon Piezometer CLF24-504
Industrial Landfill No.1 - Phase 5
Permit No.: 1812-INDUS-2008
Marshall Steam Station
Terrell, North Carolina 28682
Dear Ms. Werner:
525 South Tryon St.
Charlotte, NC 28202
Mail Code DEP-36A
Charlotte, NC 28201-1006
To progress site closure activities and future landfill construction, Duke Energy requests approval to abandon
Industrial Landfill No.1 (1812-INDUS-2008; ILF) Phase 4 piezometers CLF24-504, located within the footprint
of Phase 5. The attached Site Vicinity Plan (Figure 1) has the piezometers requested for abandonment circled.
The piezometers were installed to support the Geotechnical Investigation for ILF Phase 5. It was installed in
September 2024, and collectively 15 months of groundwater elevation data have been collected. The last
water level measurements were collected on December 4, 2025, and currently shows a water level
approximately 3.76 ft lower than the initial reading. The remaining piezometer in the Phase 5 area
(CLF24-505) will remain in place to continue to support the Geotechnical Investigation for ILF Phase 5.
Abandonment of the piezometers will be supervised by qualified geotechnical field support that is under the
direct supervision of and in contact with a Licensed Geologist. The piezometers will be abandoned by a North
Carolina licensed well contractor in accordance with subchapter 02C of the North Carolina Administrative
Code. Duke Energy will provide well abandonment logs to the Division upon completion of the field work.
If you need additional information regarding this request do not hesitate to email or call me at
Anne.Davin(cD_Duke-Energy.com or [phone].
Respectfully submitted,
Anne Davin, E.I.
Environmental Services
Attachments: Figure 1 Monitoring Location Map (SynTerra, December 2024)
cc (via e-mail): Deana Yitbarek, NCDEQ
Sherri Stanley, NCDEQ
Sarah Moutos, NCDEQ
Dan Zakary, Duke Energy
Jake Muessen, Duke Energy
Scott La Sala, Duke Energy
John Metcalf, Duke Energy
www.duke-energy.com Page 1 of 2

INTERNAL
Tyler Hardin, Duke Energy
Ashley Healy, Duke Energy
www.duke-energy.com Page 2 of 2

2 3 4 5 6 7 8
LEGEND
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