Ecology invites the public to review and comment on the draft periodic review report for the Pacific Plaza Garage site. The report for the site shows that cleanup work remains effective in protecting human health and the environment.
The building was constructed in the 1970's and more recent remodeling revealed an underground storage tank (UST) on the property that had leaked diesel and heavy oil into the soil. The owner removed the UST, disposed of the 700 gallons of liquid petroleum and 100 gallons of sludge, and excavated and removed 472 tons of contaminate soil.
After cleanup, soil samples collected at the site indicated that all but two areas were below petroleum cleanup levels. Excavation of more soil from the two remaining contaminated areas was limited by the location of the garage’s structural foundation columns and the Pacific Ave right-of-way. The contaminated areas were capped with asphalt/concrete. In 2013, an environmental covenant was filed for the site, restricting property use and requiring maintenance of a pavement cap to eliminate exposure to contaminated soil.
We conduct a Periodic Review at least every five years after the initiation of a cleanup action at a site, as required by the Model Toxics Control Act (MTCA). The purposes of the review are to evaluate site conditions and to ensure continued protection of human health and the environment when institutional controls are part of a cleanup.
Ecology will review comments received during the comment period and make recommendations for suggested changes. The Periodic Review will become final if no significant changes are made.
We will hold a public meeting if 10 people request one.
To request ADA accommodation, call Ecology at 360-407-7285, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.