Former Chemical Manufacturer Brownfields Property

Farallon completed a focused RI/FS for groundwater at a former chemical mixing plant in the Duwamish industrial corridor with an 80-year history of manufacturing operations. Historical activities that included the manufacture of cleaning products had resulted in a unique groundwater chemistry, with high concentrations of chlorinated solvents. The focused RI included reviewing soil and groundwater data collected at the site by others, and developing a scope of work to address groundwater issues. Farallon investigated the hydrogeologic characteristics of two discrete water-bearing zones underlying the site and the contaminant distribution from multiple source areas. Results of the focused RI were used to develop alternative remediation strategies that reduced cleanup costs and allowed redevelopment of this Brownfields property as the remediation progressed.