Through new innovations in technology over the past several years, EPA has successfully reduced the levels of trichloroethylene (TCE) contamination in groundwater at the Valmont TCE Superfund site.
In 2009, EPA initiated a Pilot Study using chemical injections designed to counteract the contaminants. Since that time, EPA has conducted two rounds of chemical injections into a network of wells located on the former Chromatex plant property to treat the TCE.
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As a result of the use of these innovative technologies, contaminants in shallow wells installed at the Valmont site have decreased by 50% in the last 12 years while contamination in deep wells onsite have decreased by 80% in the same period of time.