Block 38 West cleanup site, Seattle

From October 2019 through July 2021, City Investors IX did substantial early cleanup work as part of redeveloping the site. Workers removed contaminated soil from the Block 38 West Property and neighboring alley and disposed of it off-site. Cleanup work done before a full cleanup action plan is called an ‘interim action,’ and may be done before the site is fully studied.

In this case, the environmental study of the site showed that the interim action work cleaned up enough contamination that the site meets the requirements of the state cleanup law, the Model Toxics Control Act. The only remaining need is to implement institutional controls.

We invite you to comment on the following documents:

• Remedial Investigation and Focused Feasibility Study (Volume 1 and Volume 2): describes the results of environmental studies detailing contamination at the site, and evaluates and recommends a preferred cleanup action.
• Draft Cleanup Action Plan: describes the cleanup work done and institutional controls needed to protect the site in the future.
• Consent Decree: a legal agreement between Ecology and City Investors IX, that requires City Investors IX to implement the cleanup action plan.

Next steps

​We will consider and respond to all comments we receive during this public comment period. We will post a document summarizing our responses on the Block 38 West webpage.