When ARCO suspended underground pumping operations in 1982, groundwater levels on the Butte Hill began to rise. Nineteen months later the water level in the underground workings and surrounding bedrock reached the bottom of the Pit, allowing bedrock groundwater to start filling the Pit void. Prior to that time alluvial groundwater seeped into the Pit from the east and south […]

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What started off as small experiments in the laboratory studying Berkeley Pit water in small flasks, has transformed into a much larger, bench-scale field experiment using the Berkeley Pit lake as the laboratory and limnocorrals as giant test tubes suspended in the contaminated water. For most of the past decade, Dr. Grant Mitman, a Montana Tech biology professor, has been […]

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The search for valuable natural products from a most unnatural world
 by Andrea and Don Stierle Most people think of the Berkeley Pit as a large toxic waste lake, an unfortunate relic of Butte’s proud mining heritage. Don and Andrea Stierle, however, see the Pit as something more. Like most of their Natural Products Chemistry colleagues, the Stierles could be […]

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