Columbia Energy Center

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Columbia Energy Center has 27 groundwater monitoring wells, 6 of which have been polluted above federal advisory levels based on samples collected between April 13, 2010 and April 14, 2015. Groundwater at this site contains unsafe levels of molybdenum, selenium, arsenic, sulfate, manganese and boron.

Site description

Columbia Energy Center is a 1,023 MW coal-fired power plant that began operation in the 1970s. The plant operates three unlined surface impoundments, a cooling pond, and a landfill stormwater pond. A legal settlement was reached in 2013 between Alliant Energy, the U.S. Environmental Protection Agency, and Sierra Club after violations of the Clean Air Act at several power plants, and included a mandate to improve pollution controls at Columbia Energy Center.

The Columbia Energy Center is listed among the U.S. EPA's proven damage cases, indicating that it has polluted groundwater or surface water at levels which threaten human health and the environment. For more information about Columbia Energy Center, see EIP's 2010 report In Harm's Way.

For more information on Wisconsin coal ash, see Earthjustice's fact sheet, Coal Ash Disposal and Reuse in Wisconsin.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
6 / 27
Wells not shown Locations for the following wells are unavailable:

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No exceedances
One or more exeedances
No data available
Other designation
Well "halo" size corresponds to mean concentration. Please note that some wells may not be visible on the map due to overlapping locations.
Pollutants monitored and above guidelines
Tip: Click on a contaminant to view wells that have recorded exceedances. Click again to remove the filter. arsenic boron manganese molybdenum selenium sulfate
Pollutants monitored and below guidelines
barium cadmium chromium mercury nitrate
Pollutants not monitored
ammonia, antimony, beryllium, cobalt, copper, cyanide, fluoride, gross alpha particle, gross beta particle, hexavalent chromium, lead, lithium, nickel, nitrite, radium, silver, strontium, thallium, tritium, uranium

Facility last updated on Monday, September 17, 2018 04:55:44 PM EDT