1812_Duke_Marshall_ReqLetter_DIN27012_20161115

526 South Church Street:
Mail Code EC13K
Charlotte, North Carolina 28202
980-373-5697

November 15, 2016

North Carolina Department of Environmental Quality
Division of Waste Management
Solid Waste Section
2090 U.S. Highway 70
Swannanoa, North Carolina 28778

Attn: Mr. Larry Frost

Re: Industrial Landfill No.1 Alternative Method for Establishing Truck Weights
Permit No.: 1812-INDUS
Marshall Steam Station
Catawba County
Terrell, North Carolina 28682

Dear Mr. Frost,

As discussed via phone conversation on November 14, 2016, Duke Energy requests approval for an
alternative method to establish truck weights for material being disposed of in the Marshall Steam Station
Industrial Landfill No.1 (ILF) (Permit No.1 1812-INDUS) as part of construction activities for Cells 3
and 4 of the ILF. The requested alternative method is to utilize survey data before and after Cells 3 and 4
grading activities to provide an accurate account of the total material disposed of in the ILF. A unit
conversion of 1.2 tons per cubic yard will be applied to the total cubic yardage to determine the total tons
of waste placed in the ILF resulting from the project, unless a more appropriate conversion factor is
determined. A limited number of trucks will be weighed to verify the unit conversion.

Material being disposed will consist mainly of ash and soil in the Industrial Landfill Cells 3 and 4
Structural Fill that is excavated to achieve the proposed subgrade grading plan.

If there are any questions regarding this request, please contact me at [phone].

Respectfully Submitted,
Tyler Hardin
Environmental Services

Cc (via e-mail): Ed Mussler, NCDEQ
Jackson Rollins, Duke Energy
Kyle Baucom, Duke Energy
Dan Zakary, Duke Energy
Jeff Jones, Duke Energy