Cleanup actions completed to date include construction of an Environmental Restoration Disposal Facility (ERDF), a massive landfill built to provide safe disposal of waste generated by on-site remediation efforts; and disposal of tons of building rubble, contaminated soil and buried waste and debris in the ERDF (over 18 million tons disposed to date).
| City | Benton County |
|---|---|
| County | Benton County |
| State | Washington |
| Coordinates | 46.56333, -119.60490 |
Hanford 200 Area Usdoe is a federal Superfund site in Washington. The Superfund program, created by Congress in 1980, addresses sites where hazardous substances have been released or threaten release into the environment. EPA scores potential sites using the Hazard Ranking System; those that score high enough are placed on the National Priorities List.
Current status: Cleanup underway. Active cleanup is underway, meaning EPA has approved a remediation plan and work is in progress. Cleanup timelines vary widely — some sites take decades depending on contamination depth, groundwater involvement, and funding availability.
EPA has identified 10 contaminants of concern at this site, including acetone, aluminum, ammonia. Contamination has been detected in leachate, soil, sludge, debris, groundwater.
If you live near this site and have health concerns, your state health department can provide site-specific guidance. EPA maintains a community involvement program for most NPL sites, and site documents — including the Record of Decision, five-year reviews, and public health assessments — are typically available through EPA's Superfund site profile.