Colbert Fossil Plant has 25 groundwater monitoring wells, 22 of which have been polluted above federal advisory levels based on samples collected between April 26, 2010 and April 21, 2016. Groundwater at this site contains unsafe levels of molybdenum, manganese, antimony, boron, arsenic, lithium, cobalt, lead, sulfate, chromium and nickel.Site description
The Colbert Fossil Plant houses two unlined ash impoundments, one active and one abandoned, and a coal ash landfill, that cumulatively cover over 150 acres along the Tennessee River in rural northwest Alabama. These coal ash areas have been seeping contaminants into the Tennessee River and one of its tributaries for almost 30 years, according to research conducted by EIP, in large part due to the fragile karst bedrock beneath the plant.
This site is among the U.S. Environmental Protection Agency's list of potential damage cases. TVA plans to retire the plant in 2016.