Boswell Energy Center

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Boswell Energy Center has 18 groundwater monitoring wells, 12 of which have been polluted above federal advisory levels based on samples collected between May 24, 2016 and June 22, 2019. Groundwater at this site contains unsafe levels of arsenic, sulfate, boron, lithium, molybdenum and cobalt.

Site description

Minnesota Power’s Boswell Energy Center is in Cohasset, Minnesota in Itasca County along the banks of the Mississippi River. Plant Boswell began operations in 1958 and operated four coal-fired units with a maximum generating capacity of 1,073-MW. Unit 1 and Unit 2 (75-MW each) were both retired in 2018. Minnesota Power announced in 2021 that Unit 3 (365-MW) will be retired by 2030 and Unit 4 (558-MW) will be transitioned off coal to another fuel source by 2035. Boswell Energy Center operates three CCR rule-regulated surface impoundments onsite: the Bottom Ash Surface Impoundment and Units 3 and 4. An inactive surface impoundment, the Old Bottom Ash Pond, is south of those active surface impoundments.

You can find the industry-reported data here. For more information about the Boswell Energy Center, see EIP's 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
12 / 18
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 cobalt lithium molybdenum sulfate
Pollutants monitored and below guidelines
antimony barium beryllium cadmium chromium fluoride lead mercury radium selenium thallium
Pollutants not monitored
ammonia, copper, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, manganese, nickel, nitrate, nitrite, silver, strontium, tritium, uranium

Facility last updated on Wednesday, October 19, 2022 12:47:05 PM EDT