Report of Geotechnical Assessment of Coal Combustion Surface Impoundments: Minnesota Power Boswell Energy Center, Cohasset, MN

摘要

Coal Combustion Waste (CCW) results from the power production processes at coal fired power plants like Minnesota Power's Boswell Energy Center. Impoundments (dams) are designed and constructed to provide storage and disposal for the CCW that is produced. Minnesota Power reported to the EPA that five units receive or have received liquid borne materials. These units include the following: (1) Inactive Bottom Ash Pond; (2) Waste Water Treatment Plant Basins; (3) Ponds 3 and 4; (4) Bottom Ash Pond; and, (5) Coal Pile Sump.