Since 1997, the Berkeley Pit Public Education Committee has given awards, including cash and scholarships, at annual Montana Tech Science & Engineering Fairs to students with projects that explore topics related to the Berkeley Pit. Are you interested in doing a science project on the Berkeley Pit or a related issue? Would you like to research the Berkeley Pit for […]

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The Clark Fork Watershed Education Program (CFWEP) has been a leading provider of environmental and restoration education programs and services in western Montana since 2005. Based at the Montana Tech Institute for Educational Opportunities in Butte, Montana, CFWEP offers multi-disciplinary science and history programs for schools, teachers, and students in and around the Upper Clark Fork Basin. CFWEP also offers […]

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Yes, after a treatment technology review and upgrades to the plant are completed. The 1994 EPA Record of Decision and 2002 Consent Decree require a review of treatment technologies when the Critical Water Level (5,410 feet) is about four years away. The review will consider the plant’s ability to treat both Pit water and water coming from the Horseshoe Bend […]

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1982-2013: 31 years since pumps stopped

Over 31 years ago economic factors led the Atlantic-Richfield Corporation, or ARCO, now a subsidiary of British Petroleum, to cease mining operations at the Berkeley Pit in Butte, Montana. Underground mining had come to an end seven years earlier, but the underground pumps had continued to operate, pumping groundwater out from the mines and the Berkeley Pit. The 1982 suspension […]

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1955-1982: Berkeley Pit history

Over the active lifespan of the Berkeley, approximately 320 million tons of ore and over 700 million tons of waste rock were mined from the Pit. Put another way, “The Richest Hill on Earth” produced enough copper to pave a four-lane highway four inches thick from Butte to Salt Lake City and 30 miles beyond. In 1955, mining in Butte […]

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