Naughton Power Plant

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Naughton Power Plant has 44 groundwater monitoring wells, 44 of which have been polluted above federal advisory levels based on samples collected between October 11, 2015 and October 10, 2017. Groundwater at this site contains unsafe levels of sulfate, lithium, selenium, cobalt, boron, radium, molybdenum, thallium, arsenic, lead, antimony, beryllium and cadmium.

Site description

Naughton Power Plant Pacificorp’s Naughton Power Plant is located in Kemmerer, Wyoming. Naughton’s first unit was commissioned in 1963. Unit 3 of the plant’s three units was shut down in 2019. Naughton has six disposal areas regulated under the federal coal ash rule: FGD Pond 1 (41 acres), FGD Pond 2 (43 acres), FGD Pond 4 (30 acres), FGD Pond 5 (70 acres), North Ash Pond (149 acres), and South Ash Pond (118 acres). FGD Pond 1 and FGD Pond 2 became inactive in 2015. These disposal areas receive or have received in the past spent flue-gas desulfurization waste, bottom ash, and fly ash. FGD Pond 2 had been given a significant hazard rating in 2009. You can find the industry-reported data here.

For more information on the Naughton Power Plant, see EIP’s 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
44 / 44
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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. antimony arsenic beryllium boron cadmium cobalt lead lithium molybdenum radium selenium sulfate thallium
Pollutants monitored and below guidelines
barium chromium fluoride mercury
Pollutants not monitored
ammonia, copper, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, manganese, nickel, nitrate, nitrite, silver, strontium, tritium, uranium

Facility last updated on Friday, July 19, 2019 01:33:32 PM EDT