Grainger Generating Station has 14 groundwater monitoring wells, 9 of which have been polluted above federal advisory levels based on samples collected between April 12, 2010 and April 10, 2014. Groundwater at this site contains unsafe levels of arsenic, manganese and sulfate.Site description
Grainger Generating Station is a two unit, 164 MW coal-fired plant located near Conway, South Carolina, along the Waccamaw River. The facility began operating in the 1960s and stored coal combustion waste in two unlined ash ponds, one of which was converted into a dry ash storage area in 1977. Grainger was retired in 2012 and demolition of the plant is expected to be completed by the summer of 2016.
Grainger Generating 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 regarding the Grainger Station, see EIP's 2010 report, Out of Control and visit SoutheastCoalAsh.org.