Superfund Information Systems: Site Profile

Superfund Site:

AMERICAN CHEMICAL SERVICE, INC.
GRIFFITH, IN

Cleanup Progress

On this page:

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

Site-Wide Milestones

Milestone Date(s)
Preliminary Assessment/Site Investigation Completed 09/01/1980
Proposed to the National Priorities List 09/08/1983
Finalized on the National Priorities List 09/21/1984
Remedy Selected 09/30/1992
Remedial Action Started 04/10/1996
Remedy Construction Completed 09/27/2004
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 03/14/2016
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 03/27/2000 03/28/2000 00
Five-Year Review OU 00 - SITEWIDE 03/14/2016 00
Five-Year Review OU 00 - SITEWIDE 03/15/2011 00
Five-Year Review OU 00 - SITEWIDE 04/05/2001 00
Five-Year Review OU 00 - SITEWIDE 04/06/2006 00
Combined Remedial Investigation/Feasibility Study OU 01 - SITE CLEANUP 01/02/1985 01
Combined Remedial Investigation/Feasibility Study OU 01 - SITE CLEANUP 09/30/1992 01
Record of Decision OU 01 - SITE CLEANUP 09/30/1992 01
Record of Decision Amendment OU 01 - SITE CLEANUP 07/27/1999 01
Remedial Design OU 01 - SITE CLEANUP 09/30/1994 01/14/2001 01
Remedial Design OU 01 - SITE CLEANUP 09/30/1994 04/10/1996 01
Remedial Design OU 01 - SITE CLEANUP 09/30/1994 06/06/1996 01
Remedial Action OU 01 - SITE CLEANUP 01/14/2001 09/28/2005 01
Remedial Action OU 01 - SITE CLEANUP 04/10/1996 04/04/2001 01
Remedial Action OU 01 - SITE CLEANUP 06/06/1996 04/04/2001 01
Operation and Maintenance OU 01 - SITE CLEANUP 09/27/2004 01

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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