Muscatine CCR Landfill has 16 groundwater monitoring wells, 15 of which have been polluted above federal advisory levels based on samples collected between September 14, 2010 and September 03, 2015. Groundwater at this site contains unsafe levels of sulfate, manganese, boron and selenium.Site description
The 33.5-acre Muscatine Power and Water (MPW) Coal Combustion Residue (CCR) Landfill has been in operation since 1985 and is located about 7 miles west of the Mississippi River. The landfill stores a mixture of gypsum, fly ash, bottom ash, and slag from MPW's three coal-fired electric generating units.
The Muscatine CCR landfill is listed among the U.S. Environmental Protection Agency's potential damage cases, indicating that it has potentially polluted groundwater or surface water at levels which threaten human health and the environment.