Superfund Information Systems: Site Profile

Superfund Site:


Cleanup Progress

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

Site Milestones

Milestone Date(s)
Initial Assessment Completed 05/01/1983
Proposed to the National Priorities List 10/15/1984
Finalized on the National Priorities List 06/10/1986
Remedial Investigation Started 02/09/1988
Final Remedy Selected 03/31/1993
Final Remedial Action Started 05/02/1994
Construction Completed 05/29/1997
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 03/31/2020
Site Ready for Reuse and Redevelopment 11/16/2016

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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
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/29/2000 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/28/2005 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 07/29/2010 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 09/30/2015 00
Five-Year Review (EPA Performed) OU 00 - SITEWIDE 03/31/2020 00
Combined Remedial Investigation/Feasibility Study (State Oversight) OU 01 - OU01 02/09/1988 03/31/1993 01
Record of Decision (EPA Performed) OU 01 - OU01 03/31/1993 01
Explanation of Significant Differences (EPA Performed) OU 01 - OU01 07/31/1995 01
Remedial Design (State Oversight) OU 01 - OU01 04/02/1993 05/02/1994 01
Remedial Action (State Oversight) OU 01 - OU01 05/02/1994 09/30/2002 01
Long-Term Response Action OU 01 - OU01 Estimated Sep - Nov 2002 Estimated Sep - Nov 2012 01
Operation and Maintenance OU 01 - OU01 Estimated Sep - Nov 2012 Estimated Sep - Nov 2020 01

NOTE: Dates and estimated dates will not display for all milestones. Estimated dates only display for milestones planned within the next three fiscal years. Estimated dates and start dates will not display for the following enforcement milestones: Administrative Order of Consent, Consent Decree and Unilateral Administrative Order. Start dates will not display for the following document milestones: Five-Year Review, Record of Decision, Record of Decision Amendment, Explanation of Significant Differences and Partial NPL Deletion.

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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