Superfund Information Systems: Site Profile

Superfund Site:

ANACONDA CO. SMELTER
ANACONDA, MT

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 08/01/1982
Proposed to the National Priorities List 12/30/1982
Finalized on the National Priorities List 09/08/1983
Remedy Selected 10/02/1987
Remedial Action Started 01/07/1988
Construction Completed Not Yet Achieved
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 09/25/2015
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 07/15/1986 09/13/1988 00
Removal OU 00 - SITEWIDE 09/23/1991 06/03/1994 00
Five-Year Review OU 00 - SITEWIDE 09/25/2015 00
Five-Year Review OU 00 - SITEWIDE 09/29/2005 00
Five-Year Review OU 00 - SITEWIDE 09/30/2010 00
Five-Year Review OU 00 - SITEWIDE 11/23/1994 00
Five-Year Review OU 00 - SITEWIDE 12/30/1999 00
Removal OU 04 - WATER, WASTE AND SOILS 03/31/1999 04/28/1999 04
Combined Remedial Investigation/Feasibility Study OU 04 - WATER, WASTE AND SOILS 09/30/1994 04
Combined Remedial Investigation/Feasibility Study OU 04 - WATER, WASTE AND SOILS 09/29/1998 04
Record of Decision OU 04 - WATER, WASTE AND SOILS 09/29/1998 04
Record of Decision Amendment OU 04 - WATER, WASTE AND SOILS 09/29/2011 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 03/11/2008 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 05/15/2003 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 05/29/2002 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 07/24/2008 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 08/09/2002 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 09/29/2000 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 10/12/2007 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/29/2000 12/19/2007 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/30/2000 06/15/2005 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/30/2000 09/11/2003 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/30/2000 10/01/2014 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 06/30/2000 10/15/2003 04
Remedial Design OU 04 - WATER, WASTE AND SOILS 09/30/1999 09/29/2000 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 05/15/2003 09/27/2006 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 06/28/2007 09/30/2013 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 07/07/2016 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 07/12/2002 09/27/2006 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 07/29/2011 09/18/2014 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 08/21/2008 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 08/26/2005 09/25/2008 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 09/27/2002 09/27/2006 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 09/27/2002 09/29/2005 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 09/28/2010 09/22/2015 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 09/28/2010 09/30/2013 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 09/30/2003 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 09/30/2008 09/22/2015 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 11/06/2003 09/29/2004 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 11/17/2015 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 12/20/2000 09/24/2003 04
Remedial Action OU 04 - WATER, WASTE AND SOILS 12/20/2000 09/29/2005 04
Removal OU 07 - OLD WORKS/EAST ANACONDA 04/02/1992 11/04/1992 07
Combined Remedial Investigation/Feasibility Study OU 07 - OLD WORKS/EAST ANACONDA 09/28/1992 03/08/1994 07
Record of Decision OU 07 - OLD WORKS/EAST ANACONDA 03/08/1994 07
Remedial Design OU 07 - OLD WORKS/EAST ANACONDA 04/07/1994 10/29/2004 07
Remedial Design OU 07 - OLD WORKS/EAST ANACONDA 05/03/1994 05/19/1994 07
Remedial Design OU 07 - OLD WORKS/EAST ANACONDA 05/03/1994 09/29/2000 07
Remedial Action OU 07 - OLD WORKS/EAST ANACONDA 04/02/2009 01/28/2010 07
Remedial Action OU 07 - OLD WORKS/EAST ANACONDA 05/19/1994 06/29/2000 07
Remedial Action OU 07 - OLD WORKS/EAST ANACONDA 05/19/1994 09/28/2001 07
Remedial Action OU 07 - OLD WORKS/EAST ANACONDA 09/29/2000 09/18/2014 07
Remedial Action OU 07 - OLD WORKS/EAST ANACONDA 10/29/2004 09/29/2005 07
Operation and Maintenance OU 07 - OLD WORKS/EAST ANACONDA 09/18/2014 07
Removal OU 09 - BERYLLIUM REMOVAL 07/08/1992 09/30/1996 09
Combined Remedial Investigation/Feasibility Study OU 11 - FLUE DUST 07/06/1988 11
Record of Decision OU 11 - FLUE DUST 09/23/1991 11
Remedial Design OU 11 - FLUE DUST 02/19/1992 06/10/1993 11
Remedial Action OU 11 - FLUE DUST 06/10/1993 09/30/1996 11
Operation and Maintenance OU 11 - FLUE DUST 09/30/1996 11
Removal OU 12 - ARBITER REMOVAL 07/08/1992 09/30/1996 12
Combined Remedial Investigation/Feasibility Study OU 14 - SMELTER HILL 07/06/1988 14
Combined Remedial Investigation/Feasibility Study OU 15 - MILL CREEK 07/01/1986 10/02/1987 15
Record of Decision OU 15 - MILL CREEK 10/02/1987 15
Record of Decision Amendment OU 15 - MILL CREEK 01/06/1988 15
Remedial Design OU 15 - MILL CREEK 01/07/1988 01/07/1988 15
Remedial Action OU 15 - MILL CREEK 01/07/1988 12/01/1988 15
Combined Remedial Investigation/Feasibility Study OU 16 - COMMUNITY SOILS 09/30/1994 09/30/1996 16
Record of Decision OU 16 - COMMUNITY SOILS 09/30/1996 16
Record of Decision Amendment OU 16 - COMMUNITY SOILS 09/30/2013 16
Remedial Design OU 16 - COMMUNITY SOILS 06/30/2000 09/24/2003 16
Remedial Design OU 16 - COMMUNITY SOILS 09/19/1997 08/02/2002 16
Remedial Design OU 16 - COMMUNITY SOILS 09/19/1997 10/31/2005 16
Remedial Design OU 16 - COMMUNITY SOILS 10/01/2014 08/31/2015 16
Remedial Action OU 16 - COMMUNITY SOILS 03/09/2011 07/03/2012 16
Remedial Action OU 16 - COMMUNITY SOILS 05/12/2006 09/22/2015 16
Remedial Action OU 16 - COMMUNITY SOILS 09/27/2002 09/22/2015 16
Remedial Action OU 16 - COMMUNITY SOILS 09/30/2003 09/30/2013 16
Remedial Action OU 16 - COMMUNITY SOILS 11/17/2015 16

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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