Superfund Information Systems: Site Profile

Superfund Site:

KAISER ALUMINUM (MEAD WORKS)
MEAD, WA

Cleanup Progress

On this page:

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

Site Milestones

Milestone Date(s)
Initial Assessment Completed 08/10/1982
Proposed to the National Priorities List 12/30/1982
Finalized on the National Priorities List 09/08/1983
Remedial Investigation Started 02/01/1988
Final Remedy Selected 05/01/2002
Final Remedial Action Started 01/10/2000
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

Top of Page


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 (State Oversight) OU 00 - SITEWIDE 04/01/1979 04/30/1979 00
Combined Remedial Investigation/Feasibility Study (State Oversight) OU 01 - REMEDIAL 02/01/1988 05/01/2002 01
Record of Decision (State Performed) OU 01 - REMEDIAL 05/01/2002 01
Remedial Design (State Oversight) OU 01 - REMEDIAL 01/10/2000 03/29/2002 01
Remedial Action (State Oversight) OU 01 - REMEDIAL 01/10/2000 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.

Top of Page