1804_DukeMarshall_DryAsh_AdditionalEPAWellRequest_DIN26303_20160620

526 South Church St.
Charlotte, NC 28202

P.O. Box 1006
Mail Code EC13K
Charlotte, NC 28201-1006
980-373-5697
704-382-6240 fax

www.duke-energy.com Page 1 of 2

June 20, 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 – Marshall Steam Station
Permit No. INDUS-1804
Catawba County
Drilling Request

Dear Ms. Werner,

Duke Energy Carolinas (DEC), Marshall Steam Station, requests concurrence from North Carolina
Department of Environmental Quality (NCDEQ) Division of Waste Management (Division) for drilling at
the Dry Ash Landfill Phase I and Phase II (Permit No. INDUS-1804). This drilling request is in effort to
better understand groundwater conditions in bedrock. Currently, three (3) wells, AL-2BRL, AL-3BR, and
AL-4BR, are intended to be installed on the Dry Ash Landfill Phase II in locations of previously existing well
pairs and clusters. One (1) additional well, AL-1BR, is planned to be installed adjacent to the Dry Ash
Landfill Phase I next to an existing well pair. The approximate locations are shown on the attached drawing
titled "Marshall Steam Station_Proposed Additional Wells_06_20_2016".

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 for the wells specified
above.

This request is being submitted electronically. Please let me know if you would like to receive paper
copies. Feel free to contact me if you have any questions.

Respectfully submitted,

Tyler Hardin, EI
Environmental Services

Attachments: Marshall Steam Station_Proposed Additional Wells_06_20_2016

cc (via e-mail): Jackson Rollins, Duke
Tim Russell, Duke
Chris Randazzo, Duke
Kyle Baucom, Duke
Ed Sullivan, Duke
Ed Mussler, NCDEQ
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