Cheswick Generating Station has 11 groundwater monitoring wells, 4 of which have been polluted above federal advisory levels based on samples collected between February 11, 2010 and January 30, 2014. Groundwater at this site contains unsafe levels of manganese and sulfate.Site description
NRG's Cheswick Generating Station is a 565 MW coal-fired power plant located in Springdale, Pennsylvania, on the Allegheny River. The plant began operating in 1970. Coal ash from the site is currently disposed of at a solid waste landfill, called the Lefever Landfill, and in several on-site impoundments. From 1970 to the late 1990s, the power plant disposed of ash by injecting it into the 6,500-acre Harwick Mine Complex.
For additional information about Cheswick Generating Station, see EIP's 2010 report, Dirty Kilowatts.