TOC Facility 01 176 Cleanup, Mountlake Terrace

The TOC Facility No. 01 176 cleanup site has three parcels; two associated with this purchase (the property) and an adjacent parcel owned by someone else. These properties are located in Mountlake Terrace, on 56th Ave. W near 242nd Street SW.

We invite you to review and comment on the following documents, available on the TOC Facility No. 01 176 cleanup webpage:

• The Prospective Purchaser Consent Decree is a legal agreement that directs the Prospective Purchaser to implement an Ecology-approved cleanup action for the site once they have completed the purchase. 
• The Remedial Investigation/Feasibility Study describes the contamination at the site, evaluates cleanup action alternatives, and selects a preferred alternative.
• The Cleanup Action Plan describes the selected cleanup action, which includes:
  • Fixing and expanding the existing multi-phase extraction remediation system on the site.
  • Operating that system for three years to treat remaining groundwater contamination.
  • Collecting soil and groundwater performance and confirmation samples.
  • Capping or covering residual contaminated soil at the site, if necessary.
  • Implementing institutional controls under an environmental covenant, if necessary.
  • Providing engineered vapor intrusion mitigation at the site, if necessary.
• The Public Participation Plan describes how Ecology will inform the community about site activities and ways to become involved.