The Department of Ecology (Ecology) seeks public comment on a proposedinterim cleanup project at the Boeing Everett Plant.  The company would design, build, operate, monitor and maintain two engineered systems toprevent the further northward migration of a plume of contaminated underground water into Powder Mill Creek, which flows to Puget Sound.Boeing would construct

one system south of Seaway Boulevard and anothernorth of the roadway. 

The projects would provide protection for the creek and its tributaries
against contamination from trichloroethylene, a solvent released to the
ground in the past.

 These projects support Ecology’s goals of removing and preventing toxic
threats to the environment and of protecting the Sound.

 Boeing would complete final design of the south system after Ecology
addresses public comments submitted during this comment period.
Installation of the south system could begin as early as this summer or
fall.  Design of the north system would begin after Ecology approves the
south system design. 

 A final cleanup plan for the overall property is under development.  The
presently proposed project is an interim action that will be
incorporated as part of the final cleanup plan. 

 Ecology also proposes to issue a SEPA Determination of Non-Significance,
which means this project does not need an environmental impact
statement.  Comment is welcome on this proposal, too.

Ecology is accepting comment through March 29, 2011.

Comments and technical questions may be directed to:

Dean Yasuda

Hazardous Waste & Toxics Reduction

Department of Ecology

3190 160th Ave SE

Bellevue, WA 98008-5452

Email Address:

Details and contact information appear on the Internet at:

A “Public Notice” fact sheet provides background information and a map
of the site:

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