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.