Conemaugh Generating Station

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Conemaugh Generating Station has 25 groundwater monitoring wells, 22 of which have been polluted above federal advisory levels based on samples collected between January 03, 2011 and February 04, 2016. Groundwater at this site contains unsafe levels of manganese, sulfate and cadmium.

Site description

Conemaugh Generating Station is a 1,711 MW coal- and oil-fired power plant located in New Florence, Pennsylvania on the Conemaugh River. Conemaugh Power Plant is operated by a subsidiary of NRG and is jointly owned by six companies including NRG, Duquesne Power and Light, Exelon, PPL, PSEG, and UGI. In 2011 and 2012, the operators of the plant at the time settled lawsuits with the Pennsylvania Department of Environmental Protection and environmental groups related to illegal discharges of contaminated wastewater to the Conemaugh River. According to the 2017 EPA Toxic Release Inventory, Conemaugh Plant disposed of the most toxic metals on land in all of PA (4,500,000 pounds). The Conemaugh Ash Filter Pond and Ash Disposal Site are both regulated under the CCR rule. You can find the industry-reported data here. For more information on the adverse effects of coal-ash groundwater pollution, see EIP’s 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
22 / 25
Wells not shown Locations for the following wells are unavailable:

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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. cadmium manganese sulfate
Pollutants monitored and below guidelines
ammonia arsenic barium chromium copper fluoride lead mercury nitrate selenium silver
Pollutants not monitored
antimony, beryllium, boron, cobalt, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, lithium, molybdenum, nickel, nitrite, radium, strontium, thallium, tritium, uranium

Facility last updated on Wednesday, July 17, 2019 04:50:51 PM EDT