Grand River Dam Energy Center

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Grand River Dam Energy Center has 5 groundwater monitoring wells, 5 of which have been polluted above federal advisory levels based on samples collected between June 22, 2016 and November 21, 2019. Groundwater at this site contains unsafe levels of arsenic, molybdenum, lithium, sulfate, barium, radium, beryllium, cobalt, lead, cadmium, chromium and mercury.

Site description

Grand River Dam Authority's Grand River Energy Center is located in Chouteau, Oklahoma in Mayes County. Open since 1981, the center used to have two coal-fired units with a total capacity of 1,134-MW. Unit 1 was converted to natural gas in August of 2017 when the gas-fired Unit 3 was brought online. The GRDA Landfill is situated south of the coal-fired boiler units within the GREC complex and has been in operation since 1981. The total landfill permit area consists of approximately 116 acres, of which only 47 acres have been utilized for coal ash disposal. The landfill is regulated under the CCR rule. You can find the industry-reported data here. For more information on the Grand River Energy Center, see EIP’s 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
5 / 5
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. arsenic barium beryllium cadmium chromium cobalt lead lithium mercury molybdenum radium sulfate
Pollutants monitored and below guidelines
antimony boron fluoride selenium thallium
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 03:46:05 PM EDT