Use the links below to download complete Montana Bureau of Mines & Geology (MBMG) Berkeley Pit water monitoring reports and data (pdf format). Email info@pitwatch.org if you would like to request Excel spreadsheets of monitoring data.

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April 2013 Water Monitoring Report667.9 KiB776

MBMG also offers open-file annual updates on monitoring at the Berkeley Pit and Butte Mine Flooding Operable Unit. These annual reports can be downloaded below.

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Butte Mine Flooding Operable Unit Water-Level Monitoring and Water-Quality Sampling 2013 Consent Decree Update, Butte, Montana 1982-201316.4 MiB785
Butte Mine Flooding Operable Unit Water-Level Monitoring and Water-Quality Sampling 2012 Consent Decree Update, Butte, Montana 1982-20127.9 MiB866
Butte Mine Flooding Operable Unit Water-Level Monitoring and Water-Quality Sampling 2011 Consent Decree Update, Butte, Montana 1982-20113.7 MiB886
Butte Mine Flooding Operable Mine Unit Water-Level Monitoring and Water Quality Sampling 2008 Consent Decree Update Butte, Montana 1982–200814.7 MiB1006
Butte Mine Flooding Operable Unit water-level monitoring and water-quality sampling 2009 consent decree update Butte, Montana 1982-20093.7 MiB866
Butte Mine Flooding Operable Unit Water-Level Monitoring and Water-Quality Sampling 2010 Consent Decree Update, Butte, Montana 1982-20102.5 MiB912
2012 Data Summary: Butte Mine Flooding Operable Unit, March 20132.2 MiB1229

Additional groundwater information for Silver Bow County and Montana can be found at the MBMG’s Groundwater Information Center website.