The Yale Oil Facility is an inactive petroleum bulk plant and product refinery that operated from 1938 to 1978. Thermal desorption was conducted on the soils to remove petroleum hydrocarbon contamination. However, groundwater under the facility is contaminated with pentachlorophenol, dioxins/furans, and petroleum hydrocarbons. A commercial business currently exists on the facility.
In 2005, the Montana Legislature provided funding to conduct a remedial investigation and feasibility study (evaluation of remedial alternatives), including evaluation of risks to human health and the environment, on the three facilities in combination. Funding became available on July 1, 2005, and DEQ, with its contractor, prepared a Data Summary Report, which summarizes all existing data and identifies remaining data gaps that must be filled in order to evaluate risks and make final cleanup decisions.
Documents relating to this project will be available for download and/or viewing on this page as they are finalized.