As of November 3, 2014, the Pit’s water level was 5,320.29 feet above sea level. The water rose about 0.51 feet in the past month, and 6.68 feet to date in 2014. In 2013, the water rose 8.12 feet. Since PitWatch was first published in 1996, the water has risen about 183.98 feet.

When water levels at one of the monitoring compliance points around the Pit reach the Critical Level of 5,410 feet, pumping and treating of Pit water will begin. Current projections estimate that the Critical Level will be reached around 2023. Full monitoring reports and data are also available. The current level is 89.71 feet below the Critical Level.

The graphics below show the water level elevation of the Berkeley Pit in context, compared to other water levels in the Berkeley Pit monitoring and compliance system, and compared to the elevations of local landmarks around Butte, Montana. All data is from June, 2013.

Water levels in these graphics are updated annually. For the most current Berkeley Pit water levels, refer to the figure at the top of this page, the “Berkeley Pit Water Level” sidebar on the right on most pages of the site, or to monthly monitoring reports.

This image illustrates how the Berkeley Pit, with the lowest water levels in the area, acts as a sink that collects groundwater. Water levels indicated for each monitoring point are from June 2013.

This image illustrates how the Berkeley Pit, with the lowest water levels in the area, acts as a sink that collects groundwater. Water levels indicated for each monitoring point are from June 2013. Click on the image to view a larger version.

The illustration above show water levels in the Berkeley Pit and Pilot Butte mine shaft over time. The Pit has been filling with water slower than predicted in the 1994 EPA Record of Decision for the site. Graphic by Justin Ringsak.

The illustration above show water levels in the Berkeley Pit and Pilot Butte mine shaft over time. The Pit has been filling with water slower than predicted in the 1994 EPA Record of Decision for the site. Click on the image to view a larger version.

Berkeley Pit groundwater monitoring locations and water levels, including wells and abandoned mine shafts, June 2013. Graphic by Justin Ringsak.

Berkeley Pit groundwater monitoring locations and water levels, including wells and abandoned mine shafts, June 2013. Click on the image to view a larger version.

Elevations above sea level for Berkeley Pit water and surrouding Butte, Montana landmarks. Map image from Google Earth, graphic by Justin Ringsak.

Elevations above sea level for Berkeley Pit water and surrounding Butte, Montana landmarks. Image from Google Earth. Click on the image to view a larger version.

The timeline below shows current projections (as of 2013) for future Berkeley Pit management.

This timeline reflects project changes agreed to in the Consent Decree that governs Berkeley Pit management. The timeline is reviewed and adjusted by the Montana Bureau of Mines & Geology each year. Any future timeline changes will be reported in PitWatch and on the PitWatch website at www.pitwatch.org. Graphic by Justin Ringsak.

This timeline reflects project changes agreed to in the Consent Decree that governs Berkeley Pit management. The timeline is reviewed and adjusted by the Montana Bureau of Mines & Geology each year. Any future timeline changes will be reported in PitWatch and on the PitWatch website at www.pitwatch.org. Click on the image to view a larger version.