Environmental Protection Agency Brownfields

Description


In September 2009, the United States Environmental Protection Agency, Region 10 (EPA) and the City of Bothell (City) entered into a Cooperative Agreement under the Brownfields Program, to perform environmental cleanup on a contaminated City-owned property in downtown Bothell, referred to as Bothell Landing (site).  This site is just one of seven parcels that lie in the pathway of the new Crossroads roadway alignment, which was cleaned up in August 2010, prior to planned roadway construction and site redevelopment.

Brownfields Grant


Under the Cooperative Agreement BF - 00J02601 with EPA, the City was awarded a $200,000 Brownfields Cleanup Grant to perform cleanup work on the site. A Brownfields site is defined by EPA as "real property, the expansion, redevelopment or reuse of which may be complicated by the presence or potential presence of a hazardous substance, pollutant or contaminant."  The scope of work outlined in the Cooperative Agreement work plan included conducting cleanup planning activities, public involvement and performing cleanup of soil and groundwater.  

Cleaning of Soils


The site, which is also under an Agreed Order with Ecology, was cleaned up during Crossroads Phase 2 construction in August 2010. Cleanup consisted of excavating contaminated soils and transporting them for disposal at a licensed facility that handles hazardous materials. The excavation was then treated with slurry to remediate the remnant soils and groundwater, followed by back fill with clean material. Groundwater at the site was monitored quarterly, by sampling newly installed monitoring wells for a one-year period following the cleanup.