Coal ash amounts from the settlement agreement

How much coal ash is contained at each of the six facilities involved in the coal-ash cleanup settlement agreement between Gov. Roy Cooper’s Department of Environmental Quality (DEQ), several “Community Groups,” Duke Energy, and not electricity consumers?

How much coal ash does this agreement obligate Duke to remove? Also, how much does this agreement allow to remain?

This post seeks to answer those questions using numbers directly from the settlement agreement. The facilities in question are the Allen Steam Station, the Belews Creek Steam Station, the Cliffside Steam Station/Rogers Energy Complex, the Marshall Steam Station, the Mayo Steam Station, and the Roxboro Steam Station.

Allen

Location and amount of coal ash on site
Retired Ash Basin: 6.1 million tons
Active Ash Basin: 10.48 million tons
Retired Ash Basin Landfill and subgrade: 1.74 million tons
Beneath Retired Ash Basin Landfill: 1.392 million tons
The “DORS” area: 991,000 tons
Total amount of coal ash at the facility: 20.703 million tons

Location and amount of coal ash to be excavated and removed
Retired Ash Basin and Active Ash Basin: 16.632 million tons
Storage Areas, Structural Fills, and Landfill from the top of the Retired Ash Basin: 2.731 million tons
Total amount of coal ash to be excavated and removed: 19.363 million tons (93.5 percent)

Belews

Location and amount of coal ash
Ash Basin: 11.97 million tons
Total amount of coal ash at the facility: 11.97 million tons

Location and amount of coal ash to be excavated and removed
Ash Basin except ash under or within the waste boundary of the Pine Hall Road Landfill: 11.87 million tons
Ash under or within the waste boundary of the Pine Hall Road Landfill to be stabilized with a permanent structure
Amount of coal ash to be excavated and removed by Duke: 11.87 million tons (99.2 percent)

Cliffside

Location and amount of coal ash
Units 1-5 Inactive Ash Basin: 2.35 million tons
Active Ash Basin: 5.24 million tons
Total amount of coal ash at the facility: 7.59 million tons

Location and amount of coal ash to be excavated and removed
Unit 5 Inactive Ash Basin and Active Ash Basin: 7.59 million tons
Amount of coal ash to be excavated and removed by Duke: 7.59 million tons (100 percent)

Marshall

Location and amount of coal ash
Ash Basin: 17.65 million tons
Structural Fill beneath solar panels: 6.49 million tons
Subgrade fill beneath Industrial Landfill Cells 1 and 2: 460,000 tons
Subgrade fill beneath Industrial Landfill Cells 3 and 4: 409,000 tons
Old Ash Fill (1804 Phase I Landfill): 626,000 tons
Retired Landfill (1804 Phase II Landfill): 4.87 million tons
Industrial Landfill (Permit 18-12): 2.05 million tons
Total amount of coal ash at the facility: 32.095 million tons

Location and amount of coal ash to be excavated and removed
Ash Basin, except under or within the waste boundaries of the PV Structural Fill and the 1804 Phase II Landfill: 16.8 million tons
1804 Phase I landfill: 626,000 tons
Ash under or within the waste boundaries of the PV Structural Fill, the Ash Basin, and the 1804 Phase II Landfill to be stabilized with a permanent structure
Amount of coal ash to be excavated and removed by Duke: 17.426 million tons (54.3 percent)

Mayo

Location and amount of coal ash
Ash Basin: 6.63 million tons
Total amount of coal ash at the facility: 6.63 million tons

Location and amount of coal ash to be excavated and removed
Ash Basin: 6.63 million tons
Amount of coal ash to be excavated and removed by Duke: 6.63 million tons (100 percent)

Roxboro

Location and amount of coal ash
West Ash Basin: 12.97 million tons
East Ash Basin: 7.1 million tons
Roxboro Monofill (one portion): 6.818 million tons
Roxboro Monofill (separate portion): 7.635 million tons
Total amount of coal ash at the facility: 34.523 million tons

Location and amount of coal ash to be excavated and removed
West Ash Basin and extension and East Ash Basin and extension, except coal ash under and within the waste boundary of the Roxboro Monofill: 16.86 million tons
Remaining coal ash to be closed and covered with a cap system within 2.5 years of retiring the Roxboro coal-fired units
Ash under and within the waste boundaries of the Roxboro Monofill and East Ash Basin to be stabilized with a permanent structure
Amount of coal ash to be excavated and removed by Duke: 16.86 million tons (48.8 percent)

Total settlement amounts

All told, the settlement agreement identifies 113,511,000 tons of coal ash at the six facilities, of which Duke has agreed to excavate and remove 79,739,000 tons (70.2 percent).

This means that the settlement leaves 33,772,000 tons (29.8 percent) of coal ash on site, to be either covered and capped or stabilized with a permanent structure.

Jon Sanders / Director of Regulatory Studies

Jon Sanders studies regulatory policy, a veritable kudzu of invasive government and unintended consequences. As director of regulatory studies at the John Locke Foundation, Jo...

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