Dallman Station has 14 groundwater monitoring wells, 11 of which have been polluted above federal advisory levels based on samples collected between February 23, 2010 and November 09, 2017. Groundwater at this site contains unsafe levels of manganese, arsenic, boron, ammonia, cadmium and sulfate.Site description
Dallman Station is a 618 MW coal-fired power plant in Springfield, Illinois. It is owned and operated by City Water, Light and Power (CWLP), a muncipially owned utility in Springfield. The plant has 4 units, the first of which opened in 1968. Units 1-3 were built in the 1960s-1970s, with Unit 4 built in 2009. City Water, Light and Power operates two coal combustion residual (CCR) surface impoundments that occupy approximately 70 acres of land just north of the Dallman power plant.
Dallman Station is among the U.S. Environmental Protection Agency's list of potential damage cases, indicating that it has potentially polluted groundwater or surface water at levels which threaten human health and the environment. For more information about groundwater at this plant, see EIP's 2010 report In Harm's Way.
For more information about plant coal ash impoundments, visit the Prairie Rivers Network's Coal Ash Map.