Montville Generating Station

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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.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
7 / 14
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No exceedances
One or more exeedances
No data available
Other designation
Well "halo" size corresponds to mean concentration. Please note that some wells may not be visible on the map due to overlapping locations.
Pollutants monitored and above guidelines
Tip: Click on a contaminant to view wells that have recorded exceedances. Click again to remove the filter. arsenic beryllium nickel
Pollutants monitored and below guidelines
copper lead
Pollutants not monitored
ammonia, antimony, barium, boron, cadmium, chromium, cobalt, cyanide, fluoride, gross alpha particle, gross beta particle, hexavalent chromium, lithium, manganese, mercury, molybdenum, nitrate, nitrite, radium, selenium, silver, strontium, sulfate, thallium, tritium, uranium

Facility last updated on Thursday, March 23, 2017 03:30:54 PM EDT