Superfund Site Profile
The 4.5-acre Mouat Industries site is located in Columbus, Montana. From 1957 to 1962, Mouat Industries processed chromite ore mined from the Stillwater Mining Complex in south-central Montana. The process generated wastes containing sodium chromate and sodium dichromate. Waste piles leached contamination into the soil and groundwater. Further contamination resulted from sodium dichromate spills during normal facility operations. Following cleanup at the site, operation and maintenance activities are ongoing.