Superfund Information Systems: Site Profile

Superfund Site:

WESTLAKE LANDFILL
BRIDGETON, MO

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 04/02/1985
Proposed to the National Priorities List 10/26/1989
Finalized on the National Priorities List 08/30/1990
Remedy Selected 05/29/2008
Final Remedy Selected 07/25/2008
Remedial Action Started Not Yet Achieved
Remedy Construction Completed Not Yet Achieved
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review Not Yet Achieved
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 01 - RAD WASTE CELLS 02/16/2016 01
Removal OU 01 - RAD WASTE CELLS 05/25/2016 01
Combined Remedial Investigation/Feasibility Study OU 01 - RAD WASTE CELLS 03/03/1993 05/29/2008 01
Combined Remedial Investigation/Feasibility Study OU 01 - RAD WASTE CELLS 12/09/2015 01
Record of Decision OU 01 - RAD WASTE CELLS 05/29/2008 01
Combined Remedial Investigation/Feasibility Study OU 02 - LANDFILL 12/14/1994 07/25/2008 02
Record of Decision OU 02 - LANDFILL 07/25/2008 02

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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