3612_DukeAllen_Email_RequestRedrillCCR11D_DIN27503_20170302

1
Werner, Elizabeth
From:DeNeale, Sean <[e-mail]>
Sent:Thursday, March 02, 2017 2:10 PM
To:Werner, Elizabeth
Subject:RE: Allen EPA CCR Well Installation Concurrence
Attachments:2016_03_28 Allen RAB Ash Landfill (INDUS-3612) CCR Well Request.pdf
Elizabeth, 

Attached is correspondence provided to you last March for which concurrence was subsequently received by you per 
the email below.  As discussed on Tuesday, CCR‐11D is a well that was drilled last year (shown on figure in 
attachment).  Grout impacts were suspected due to high pH in the well, and plans were made to redrill the well.  The 
replacement well was inadvertently drilled about 300 feet away adjacent to an existing non‐CCR monitoring well 
cluster.  Having determined this to be the case, Duke would like to correctly redrill the replacement CCR‐11D well 
adjacent to the CCR‐11 cluster and to abandon the initial, erroneously located CCR‐11D replacement well to prevent 
confusion in the field.  This email serves to inform you and to request concurrence that Duke may redrill the well and 
abandon the erroneously located replacement well. 

If you have any questions or need any clarity concerning this issue, please let me know.  Thanks! 
Sean 

From: Werner, Elizabeth [mailto:[e-mail]]
Sent: Tuesday, March 29, 2016 4:42 PM
To: DeNeale, Sean
Cc: Mussler, Ed; Sullivan, Ed M; Frost, Larry; Aufman, Shannon E; Mckee, Shawn
Subject: Allen EPA CCR Well Installation Concurrence

*** Exercise caution. This is an EXTERNAL email. DO NOT open attachments or click links from
unknown senders or unexpected email. ***
Dear Sean,  

Attached is the Solid Waste Section concurrence to the USEPA Well Installations for the RAB Landfill at the Allen Steam 
Station.  You will not receive a hard copy in the mail.  Please don’t hesitate to contact with my any questions. 

Sincerely,  
Elizabeth 

Elizabeth S Werner
Permitting Hydrogeologist
North Carolina Department of Environmental Quality (DEQ)
Division of Waste Management - Solid Waste Section

919.707.8253
[e-mail]

217 West Jones Street
1646 Mail Service Center
526 South Church St.
Charlotte, NC 28202

P.O. Box 1006
Mail Code EC13K
Charlotte, NC 28201-1006
704-382-4761
704-382-6240 fax

www.duke-energy.com Page 1 of 2
March 28, 2016

North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
1646 Mail Service Center
Raleigh, North Carolina 27699-1649

Attn: Ms. Elizabeth Werner

Re: Duke Energy Carolinas, LLC – Allen Steam Station
Retired Ash Basin (RAB) Ash Landfill
Permit No. 3612-INDUS-2008
Gaston County
Drilling Request

Dear Ms. Werner,

Duke Energy Carolinas, LLC (DEC), Allen Steam Station requests concurrence from North Carolina
Department of Environmental Quality (NCDEQ) Division of Waste Management (Division) for drilling in
vicinity to the Allen Steam Station Retired Ash Basin (RAB) Ash Landfill (Permit No. 3612-INDUS-2008).
This drilling request is in effort to satisfy USEPA Hazardous and Solid Waste Management System; Disposal
of Coal Combustion Residuals From Electric Utilities (USEPA CCR) 40 CFR Part 257.91. Currently,
fourteen (14) groundwater monitoring wells are intended to be installed in the approximate locations shown
on the attached drawing titled "Proposed CCR Monitoring Well Locations". Upon completion of monitoring
well installation, Duke Energy will submit a well installation completion package to the Division noting
actual well locations and depths including drilling logs.

In addition, approximately six (6) existing wells are likely to be utilized as part of this landfill CCR
monitoring network. The existing wells which are planned to be incorporated into the network are also
indicated with text boxes on the attached figure. Installation of additional background and downgradient
monitoring wells is also planned around the station’s ash basin system to be included in the site-wide, multi-
unit groundwater monitoring network for the CCR Rule.

This request is being submitted electronically. Please let me know if you would like to receive paper
copies.

Respectfully submitted,
Sean DeNeale, Engineer III
Environmental Services

Attachments: Proposed CCR Monitoring Well Location Drawing

cc (via e-mail): Scott Harris, Duke Energy
Kyle Baucom, Duke Energy
Randy Gantt, Duke Energy
Ed Sullivan, Duke Energy
Ed Mussler, NCDEQ