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Bureau of Epidemiology

Environmental Epidemiology Program

Tooele Army Depot


Tooele Army Depot has been an active Army base since the early 1940s. The 23,732-acre site is located in northeastern Tooele County, Utah, about 35 miles southwest of Salt Lake City. Environmental contamination occurred during the depot's 50-plus years of storing ammunition and repairing equipment.

The disposal of industrial wastes at Tooele Army Depot has resulted in groundwater contamination underneath the depot. There are two primary contaminant plumes: 1) the industrial waste lagoon, which has been designated the main plume, and 2) the northeastern area boundary plume. Trichloroethylene (TCE) is the principal contaminant of concern

The site was placed on the Superfund National Priorities List (NPL) in October 1990.

In 1991 the area began construction on one of the Country's largest groundwater treatment plants to address the main plume. The plume had now retreated near the depot boundaries. Other cleanup activities on site have included the removal of soil contaminated with explosives, the removal decontamination equipment and the removal of soil contaminated with lead and battery acid.

A Public Health Assessment (PHA) was conducted for the Tooele Army Depot. The PHA was completed in 2003.

  • Public Health Assessment
    • The PHA evaluated the potential for long-term health impacts in the community.
    • ATSDR's review of available information indicates that people residing near Tooele Army Depot have not been, and are not now being, exposed to site-related contaminants at levels that could result in adverse health effects.