R.M. Schahfer Generating Station

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R.M. Schahfer Generating Station has 107 groundwater monitoring wells, 78 of which have been polluted above federal advisory levels based on samples collected between March 23, 2010 and December 05, 2019. Groundwater at this site contains unsafe levels of boron, sulfate, molybdenum, manganese, arsenic, cobalt, lithium, nitrate, radium, nickel, selenium, antimony, fluoride and chromium.

Site description

R.M. Schahfer Generating Station is a coal-fired power plant south of Valparaiso, Indiana owned by Northern Indiana Public Service Company, which began operating in 1976. It was composed of four units until 2021, when two of its units were retired. The remaining two are expected to be retired in 2025. The facility had a peak capacity of 1,944-MW, while the two remaining units have a total capacity of 847-MW. The plant operates a Type I Restricted Waste Landfill (RWS I), which was originally permitted to receive waste in 1984. The plant has additional waste disposal areas, including 3 primary ash ponds, four smaller ash ponds, and several former dry-staging areas. The ponds and dry storage areas were commissioned in the 1970s and 1980s. The landfill, surface impoundments, and waste disposal areas are regulated under the federal coal ash rule.

The U.S. Environmental Protection Agency in 2011 rated two of the ash ponds at the station as having high-hazard dams, indicating that failure of those dams would likely result in the loss of human life. Schahfer Generating Station is also listed among the U.S. EPA potential damage cases, indicating that it has polluted groundwater at levels which potentially threaten human health or the environment. An investigation conducted by the Center for Public Integrity, USA Today, and the Weather Channel found R.M. Schahfer Generating Station as one of the nation's 22 "Super Polluters".

You can find the industry-reported data here. For more information about the R.M. Schahfer Generating Station, see EIP's 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
78 / 107
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. antimony arsenic boron chromium cobalt fluoride lithium manganese molybdenum nickel nitrate radium selenium sulfate
Pollutants monitored and below guidelines
barium beryllium cadmium copper cyanide lead mercury nitrite silver thallium
Pollutants not monitored
ammonia, gross alpha particle, gross beta particle, hexavalent chromium, strontium, tritium, uranium

Facility last updated on Monday, October 17, 2022 10:06:47 AM EDT