Dallman Station

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Dallman Station has 15 groundwater monitoring wells, 13 of which have been polluted above federal advisory levels based on samples collected between February 23, 2010 and August 01, 2019. Groundwater at this site contains unsafe levels of boron, arsenic, manganese, sulfate, lead, cadmium and cobalt.

Site description

Dallman Station is a coal-fired power plant in Springfield, Illinois in Sangamon County that had a peak capacity. It is owned and operated by City Water, Light and Power (CWLP), a municipally owned utility in Springfield. The plant had 4 units, the first of which opened in 1968; the since retired Units 1-3 were built in the 1960s-1970s, while the currently only functioning Unit 4 was built in 2009. Units 1 and 2 were retired in 2020, while Unit 3 was retired earlier than planned in 2021, following irrecoverable damage from a storm. City Water, Light and Power operates two coal combustion residual (CCR) surface impoundments, regulated under the CCR rule, occupying approximately 70 acres of land just north of the Dallman power plant.

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

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
13 / 15
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 cadmium cobalt lead manganese sulfate
Pollutants monitored and below guidelines
ammonia antimony barium beryllium chromium copper fluoride lithium mercury molybdenum nickel nitrate radium selenium silver thallium
Pollutants not monitored
cyanide, gross alpha particle, gross beta particle, hexavalent chromium, nitrite, strontium, tritium, uranium

Facility last updated on Friday, October 14, 2022 12:44:22 PM EDT