Superfund Site Profile
- The plumes have shrunk considerably for both dissolved chromium and VOCs, the result of continued groundwater extraction and treatment and previous source control actions.
- Infrastructure is removed once it is no longer needed. This has included decommissioning wells, converting some wells into monitoring wells, and removing vaults and piping. Most of the infrastructure removal has been conducted on Bonneville Power Administration property.
- Monitoring well sampling continues twice each year. Over time, less access to private property to sample monitoring wells will be needed as the contamination shrinks to smaller areas.
- EPA and Linde LLC continue to work with the owner/developer of ...