Environmental Site Assessment, Sound Transit, Puyallup/Sumner, WA

As a Team Leader for the Sumner and Puyallup Commuter Rail Stations, EnCo completed ESAs on 22 separate parcels of land. On-site concerns included suspect subsurface petroleum hydrocarbon contamination beneath several of the properties from former gasoline and diesel fuel USTs. Sound Transit used the reports to make key decisions on property acquisition.

Stormwater Plan, Auto Transport Facility, Seattle, WA

Performed a stormwater runoff assessment and identified industrial activity exposed to stormwater. Performed training and initiated a sampling plan to monitor off-site runoff for potential on-site impacts to the facility’s stormwater outfall for zinc.