Superfund Information Systems: Site Profile

Superfund Site:

US MAGNESIUM
TOOELE COUNTY, UT

Stay Updated, Get Involved

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Announcements and Key Topics

During the summer and fall of 2015, environmental investigations work continued at US Magnesium. Though the Outer Preliminary Remedial Investigation Areas (PRIs) Findings Report is not yet final, the current draft report contains data for every sample point in the Outer PRIs for soils and sediments. In July 2015, US Magnesium, LLC contractors collected surface water samples and that data will be added to the report. Crews last summer also collected background samples to compare naturally occurring chemicals to the site concentrations. The Outer PRI Findings Report is expected to be finalized in the next few months.

EPA and the US Magnesium, LLC contractors came to agreement in 2015 on an appropriate sampling approach for the Inner PRIs, which includes areas such as the gypsum pile, ditches, and waste lagoons. Contractors began sampling inner PRI areas in July. Fourteen samples were collected in each Inner PRI. This work required trained crews to take soil, sediment, and surface water samples in sometimes difficult to access and highly contaminated areas. For highly-acid waste lagoons, helicopter-deployed clamshell diggers scooped water and sediment from above to avoid direct contact with the acid-contaminated ponds. All sampling activity in the Inner PRIs is being guided by the Phase 1A-B sampling plan, finalized in September 2015.

Air sampling conducted per the 2014 Air Sampling and Analysis Plan showed that chlorine and hydrochloric acid are the two chemicals that need to be evaluated in more detail. EPA and US Magnesium, LLC contractors are developing a new Air Sampling and Analysis Plan to accurately measure exposures to these two contaminants at the site.

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Public Participation Opportunities

Community Advisory Group Meeting
Wednesday Nov. 16
5–7 p.m.
Grantsville Library
42 N. Bowery St.
Grantsville, Utah

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Community Resources

Community Advisory Group Meeting
Wednesday November 16
from 5–7 p.m.
at the Grantsville Library
42 N. Bowery St.
Grantsville, Utah

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Stay Informed and Involved

There is a Community Advisory Group associated with the US Magnesium site. This is a group of people who represent federal, state, and local governments, local groups and organizations and individuals who have official capacity or have simply shown interest in learning about site activities and sharing information. Meetings are advertised in the Tooele Transcript newspaper, on this website, and via email. If you are interested in attending a community advisory group meeting and would like to be notified  by email of an upcoming meeting, please contact Jennifer Chergo.

In 2013, representatives from the Friends of the Great Salt Lake applied for and received an EPA Technical Assistance Grant (TAG). A TAG recipient receives funds to hire an independent technical advisor to help interpret information and data about the site for the group. The TAG group then assists in communicating site information to the community at-large.

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