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Superfund Sites in Reuse in Wyoming

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Mystery Bridge Rd/U.S. Highway 20

The 410-acre Mystery Bridge Rd/U.S. Highway 20 Superfund site includes residential and industrial areas in Evansville, Wyoming. Industrial activities began in 1923 and have continued until the present. Site activities contaminated soil and groundwater with solvents and oils. EPA added the site to the National Priorities List (NPL) in 1990 and immediately connected nearby residents to the municipal water supply. EPA worked with the responsible parties, Kinder Morgan Energy Partners and the Dow Chemical Company, on groundwater treatment systems. Institutional controls restrict future activities on the former Kinder Morgan Energy Partners and Dow Chemical Company portions of the site to industrial uses. In 2012, Tallgrass Energy Partners purchased the facilities from Kinder Morgan Energy Partners. Tallgrass Energy Partners continues to conduct natural gas processing activities on site. The Dow Chemical property is currently used for storage. The residential neighborhood on site, which includes about 40 homes, remains in continued use.
Last updated June 2017

As of December 2018, EPA had data on 7 on-site businesses. These businesses employed 92 people and generated an estimated $46,840,000 in annual sales revenue. For additional information click here.

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