Coffeen Power Station has 104 groundwater monitoring wells, 50 of which have been polluted above federal advisory levels based on samples collected between March 05, 2010 and November 04, 2017. Groundwater at this site contains unsafe levels of sulfate, boron, cobalt, manganese, lithium, arsenic, lead, cadmium, beryllium, chromium, molybdenum, nitrate and thallium.Site description
Coffeen Power Station is a coal-fired power plant owned and operated by Dynegy. Located in Montgomery County, the plant has a net generating capacity of 915 MW and began commercial operation in 1965. Coffeen Power Station currently has two operating units - with Unit 1 commissioned in 1965 and Unit 2 in 1972. In 2009 and 2010, sulfur dioxide scrubbers were added to both units by the plant's former owner, Ameren. In 2014, Dynegy took over the operation of the plant from Ameren. Coffeen Power 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.