Superfund Information Systems: Site Profile

Superfund Site:

ST. REGIS PAPER CO.
CASS LAKE, MN

Cleanup Progress

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Cleaning up Superfund sites is a complex, multi-phase process. Learn more:

Site-Wide Milestones

Milestone Date(s)
Preliminary Assessment/Site Investigation Completed 09/01/1983
Proposed to the National Priorities List 09/08/1983
Finalized on the National Priorities List 09/21/1984
Remedy Selected 07/29/1986
Remedial Action Started 01/07/1987
Construction Completed Not Yet Achieved
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 07/27/2015
Site Ready for Reuse and Redevelopment Not Yet Achieved

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Cleanup Schedule by Operable Unit

During cleanup, a site can be divided into a number of distinct areas depending on its complexity. These areas, called operable units (OUs), may address geographic areas, specific problems, or areas where a specific action is required. Examples of typical operable units include construction of a groundwater pump and treatment system or construction of a cap over a landfill.

Milestone OU Start Date Completion Date OU ID
Removal OU 00 - SITEWIDE 06/08/2004 10/13/2005 00
Removal OU 00 - SITEWIDE 09/19/2005 09/28/2006 00
Operation and Maintenance OU 00 - SITEWIDE 02/26/1985 00
Five-Year Review OU 00 - SITEWIDE 04/06/1995 00
Five-Year Review OU 00 - SITEWIDE 07/27/2015 00
Five-Year Review OU 00 - SITEWIDE 09/07/2010 00
Five-Year Review OU 00 - SITEWIDE 09/29/2000 00
Five-Year Review OU 00 - SITEWIDE 09/29/2005 00
Combined Remedial Investigation/Feasibility Study OU 01 - NW AREA 11/25/1984 07/29/1986 01
Remedial Design OU 01 - NW AREA 01/30/1985 01
Remedial Action OU 02 - SW AREA 01/07/1987 01/10/1989 02
Combined Remedial Investigation/Feasibility Study OU 03 - CASS LAKE CITY DUMP 11/25/1984 07/03/1986 03
Record of Decision OU 03 - CASS LAKE CITY DUMP 07/29/1986 03
Record of Decision OU 07 - HOUSE DUST 10/14/2005 07
Remedial Design OU 07 - HOUSE DUST 12/16/2005 01/27/2006 07
Remedial Action OU 07 - HOUSE DUST 12/16/2005 07
Feasibility Study OU 08 - SOILS 01/13/2014 08
Combined Remedial Investigation/Feasibility Study OU 10 - GROUNDWATER 07/01/2005 10
Combined Remedial Investigation/Feasibility Study OU 12 - SEMS 07/13/2000 12
Record of Decision OU 12 - SEMS 07/29/1986 12
Remedial Action OU 12 - SEMS 01/07/1987 12/31/1989 12
Long-Term Response Action OU 12 - SEMS 01/01/1990 01/01/2000 12

DISCLAIMER: The data on this page are derived from the Superfund Enterprise Management System and are solely for informational purposes. The data cannot be relied upon to create any substantive or procedural rights or requirements enforceable by any party in litigation with any member of the public, states, tribes, the United States or any federal agency. EPA reserves the right to change these data at any time without public notice.

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