Roy S. Nelson Plant

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Roy S. Nelson Plant has 14 groundwater monitoring wells, 10 of which have been polluted above federal advisory levels based on samples collected between November 18, 2015 and December 19, 2019. Groundwater at this site contains unsafe levels of arsenic and lithium.

Site description

Entergy’s Roy S. Nelson Plant has been operational since 1982. It is located near Westlake, Louisiana in Calcasiew Parish. With one coal-fired generating unit, the plant is capable of producing 615 MW energy. The landfill located southwest of the plant is regulated under the CCR rule. You can find the industry-reported data here. For more information on the Roy S. Nelson Plant, see EIP’s 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
10 / 14
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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 lithium
Pollutants monitored and below guidelines
antimony barium beryllium boron cadmium chromium cobalt fluoride lead mercury molybdenum radium selenium sulfate 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 Thursday, October 13, 2022 04:26:26 PM EDT