Record Display for the EPA National Library Catalog


Main Title Coal Ash Impoundment Specific Site Assessment Report: PPL Montana, Colstrip Power Plant, Units 1 and 2 Bottom Ash Ponds; Units 1 and 2 'A' Fly Ash Pond; Units 1 and 2 Stage Two Evaporation Pond (STEP); and Units 3 and 4 Effluent Holding Ponds. Draft.
CORP Author GEI Consultants, Inc., Centennial, CO.; Lockheed Martin, Edison, NJ.; Environmental Protection Agency, Washington, DC.
Year Published 2009
Stock Number PB2010-110167
Additional Subjects Dam safety ; Waste management ; Surface impoundments ; Coal ash impoundment ; Site assessments ; Recommendations ; Construction ; Operations ; Seismology ; Geology ; Instrumentation ; Structural stability ; Maintenance ; Operation methods ; Ash ponds ; Field assessments ; Montana ; Impoundment embankment dams ; Colstrip Power Plant ; PPL Montana ; Spillway adequacy ; Emergency action plans ; Colstrip(Montana)
Library Call Number Additional Info Location Last
NTIS  PB2010-110167 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 57p
This report presents the results of a specific site assessment of the dam safety of the Units 1 & 2 Bottom Ash Ponds, Units 1 & 2 Fly Ash Pond A, Units 1 & 2 Stage Two Evaporation Pond (STEP) and Units 3 & 4 Effluent Holding Pond (EHP) coal combustion waste impoundments at PPL Montanas Colstrip Power Plant. These impoundments were assessed because their failure may result in significant economic loss, environmental damage, disruption of lifeline facilities or loss of life (significant or high hazard according to U.S. Environmental Protection Agency (EPA) classification).