Naughton Power Plant

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Naughton Power Plant has 53 groundwater monitoring wells, 53 of which have been polluted above federal advisory levels based on samples collected between October 11, 2015 and September 11, 2019. Groundwater at this site contains unsafe levels of sulfate, lithium, selenium, cobalt, boron, molybdenum, radium, arsenic, thallium, lead, antimony, beryllium, cadmium, barium, chromium and fluoride.

Site description

Naughton Power Plant Pacificorp’s Naughton Power Plant is located in Kemmerer, Wyoming in Lincoln County. Naughton’s first unit was commissioned in 1963. The facility was composed of three coal-fired units, with a net capacity of 823-MW. Unit 3 was shut down in 2019 while the remaining two units are scheduled for retirement in 2025. . 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.
53 / 53
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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 barium beryllium boron cadmium chromium cobalt fluoride lead lithium molybdenum radium selenium sulfate thallium
Pollutants monitored and below guidelines
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 Monday, October 24, 2022 10:44:56 AM EDT