Superfund Information Systems: Site Profile

Superfund Site:

LOCKHEED WEST SEATTLE
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 Not Yet Achieved
Proposed to the National Priorities List 09/27/2006
Finalized on the National Priorities List 03/07/2007
Final Remedy Selected 08/28/2013
Remedial Action Started 05/09/2018
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
Combined Remedial Investigation/Feasibility Study OU 01 - REMEDIAL 07/28/2006 08/28/2013 01
Record of Decision OU 01 - REMEDIAL 08/28/2013 01
Remedial Design OU 01 - REMEDIAL 04/13/2015 05/09/2018 01
Remedial Action OU 01 - REMEDIAL 05/09/2018 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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