Record Display for the EPA National Library Catalog

RECORD NUMBER: 553 OF 818

Main Title Round 7 Dam Assessment. Allete, Inc.-Laskin Energy Center Cells A-D and Cell E Impoundments. Final Report.
CORP Author GZA GeoEnvironmental, Inc., Newton, MA.; Environmental Protection Agency, Washington, DC.
Year Published 2011
Report Number GZA-01-0170142-20
Stock Number PB2013-101371
Additional Subjects Dams ; Assessments ; Surface impoundments ; Dam safety ; Embankments ; Hazard classification ; Hydrology ; Streams ; US EPA ; Visual inspection ; Allete Incorporated Laskin Energy Center (LEC) ; Hoyts Lake(Minnesota)
Holdings
Library Call Number Additional Info Location Last
Modified		 Checkout
Status
NTIS  PB2013-101371 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 110p
Abstract
This Phase I Inspection/Evaluation Report presents the results of a visual dam inspection of the Allete, Inc. Laskin Energy Center (LEC) Cells A-D and Cell E Impoundments located at 5699 Colby Lake Road in Hoyts Lake, Minnesota. The inspection was performed on September 23 and 24, 2010 by representatives of GZA GeoEnvironmental, Inc (GZA), accompanied by representatives of LEC. The Cells A-D Impoundment, in its current configuration, has a maximum crest height of approximately 32 feet above the natural ground surface but a typical height of about 6 feet. The impoundment has a maximum storage volume of approximately 970 acre-feet at the minimum embankment elevation of approximately 1,450 feet MSL. Under U.S. Army Corps of Engineers (COE) guidelines, the impoundment is classified a Small size structure. The Hazard Potential Classification for the Cells A-D Impoundment is Less-Than-Low under the EPA hazard rating criteria due to the limited potential for failure and limited are of potential impact.