Montville Generating Station has 14 groundwater monitoring wells, 7 of which have been polluted above federal advisory levels based on samples collected between June 16, 2011 and December 04, 2015. Groundwater at this site contains unsafe levels of arsenic, nickel and beryllium.Site description
Montville Generating Station, located along the Thames River, began operation in 1919 and burned coal for 52 years, disposing of coal ash at several on and off-site disposal areas. The plant converted to oil as a fuel source in 1971, and coal ash disposal areas are now inactive. Montville Generating Station 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. For additional information about Montville Station, see EIP's 2010 report, In Harm's Way.