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. They continued today. Site activities contaminated soil and groundwater with solvents and oils. EPA added the site to the National Priorities List (NPL) in 1990. As part of initial response actions, EPA connected nearby residences to the municipal water supply. EPA worked with the responsible parties, Kinder Morgan Energy Partners, Dow Chemical Company and Dowell Schlumberger, to treat soil and groundwater affected by releases on each of their properties. Institutional controls restrict future uses on each of these properties to industrial uses. In 2012, Tallgrass Energy Partners purchased the facility from Kinder Morgan Energy Partners. Tallgrass Energy Partners continues to conduct natural gas processing activities on site. EPA deleted the former Kinder Morgan Energy Partners area of the site from the NPL in 2017. The Dow Chemical Company and Dowell Schlumberger property is currently used for equipment storage. The neighborhood on site, which includes about 40 homes, remains in continued use. A Burlington-Northern railroad right of way separates industrial and residential areas of the site. The rail line is active. EPA deleted the rest of the site from the NPL in 2019.
Last updated August 2021
As of December 2020, EPA had data on one on-site business. This business employed 25 people and generated an estimated $327,500,000 in annual sales revenue. For additional information click here.
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