The site’s long-term remedy, documented in the 1995 Record of Decision (ROD) and 2000 ROD Amendment , included placing contaminated sediment from the three unlined waste ponds in an on-site landfill; capping calcine tailings; natural attenuation of groundwater contaminants; groundwater monitoring; and institutional controls.
| City | Soda Springs |
|---|---|
| County | Caribou County |
| State | Idaho |
| Coordinates | 42.68722, -111.57360 |
Kerr Mcgee Chemical Corp Soda Springs Plant is a federal Superfund site in Idaho. 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: Construction complete. Physical construction of the cleanup remedy is complete, though long-term monitoring and institutional controls typically continue for years or decades. Groundwater treatment systems, for example, often run long after surface cleanup finishes.
EPA has identified 7 contaminants of concern at this site, including arsenic, lithium, manganese. Contamination has been detected in liquid waste, groundwater, solid waste.
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.