Superfund Site Profile
The Silver Bow Creek/Butte Area site is located in Butte, Montana and covers about 26 miles of stream and streamside habitat. Since the late 1800s, mining crews dumped mining wastes into on-site streams and wetlands near mining operations. These activities contaminated soil, groundwater and surface water with heavy metals.
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EPA recently completed the fourth five-year review for the site (324 pp, 24.7 MB, About PDF). Five-year reviews are conducted to determine how the remedy is working and if the remedy remains protective of human health and the environment.
The 2008 to 2013 Surface Water Characterization Report (404 pp, 66 MB, About PDF) presents a summary and interpretation of surface water quality data collected at the Butte Priority Soils Operable Unit.