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3612_DukeAllen_Email_RequestRedrillCCR11D_DIN27503_201703021 Werner, Elizabeth From:DeNeale, Sean <Sean.DeNeale@duke-energy.com> 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:elizabeth.werner@ncdenr.gov] 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 elizabeth.werner@ncdenr.gov 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