Superfund Information Systems: Site Profile

Superfund Site:

PACIFIC SOUND RESOURCES
SEATTLE, WA

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 09/01/1984
Proposed to the National Priorities List 05/10/1993
Finalized on the National Priorities List 05/31/1994
Final Remedy Selected 09/30/1999
Remedial Action Started 04/29/2003
Construction Completed 09/16/2005
Deleted from National Priorities List Not Yet Achieved
Most Recent Five-Year Review 09/24/2014
Site Ready for Reuse and Redevelopment 09/07/2016

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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
Removal OU 00 - SITEWIDE 01/09/1990 08/31/1990 00
Five-Year Review OU 00 - SITEWIDE 09/24/2014 00
Five-Year Review OU 00 - SITEWIDE 09/29/2009 00
Five-Year Review OU 00 - SITEWIDE 09/30/2004 00
Removal OU 01 - UPLAND SOILS/GROUNDWATER 03/20/1995 10/26/1998 01
Removal OU 01 - UPLAND SOILS/GROUNDWATER 09/30/1994 02/01/1996 01
Combined Remedial Investigation/Feasibility Study OU 01 - UPLAND SOILS/GROUNDWATER 09/29/1994 01
Combined Remedial Investigation/Feasibility Study OU 02 - SEDIMENTS 05/18/1995 09/30/1999 02
Record of Decision OU 02 - SEDIMENTS 09/30/1999 02
Remedial Design OU 02 - SEDIMENTS 12/14/1999 03/06/2003 02
Remedial Action OU 02 - SEDIMENTS 04/29/2003 09/16/2005 02
Operation and Maintenance OU 02 - SEDIMENTS 09/16/2005 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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