W.A. Parish Electric Generating Station

Download Data

W.A. Parish Electric Generating Station has 61 groundwater monitoring wells, 59 of which have been polluted above federal advisory levels based on samples collected between May 24, 2010 and October 10, 2017. Groundwater at this site contains unsafe levels of sulfate, manganese, strontium, fluoride, arsenic, boron, molybdenum, chromium, cobalt, selenium and barium.

Site description

The W.A. Parish Electric Generating Station is a 2,697 MW plant located adjacent to Smithers Lake, near Thompsons, Texas. It is the largest power plant in Texas and the second largest fossil-fuel burning plant in the country. The plant began operations in 1977 and currently operates four coal-fired units and four natural gas-fired units.This facility is among the U.S. Environmental Protection Agency's list of potential damage cases, indicating that it has potentially polluted groundwater or surface water at levels which threaten human health and the environment. Plant W.A. Parish operates three coal ash disposal units: Unit 001, Unit 020 and Unit 021. You can find the industry reported data here.

For more information on the W.A. Parish Generating Station, see EIP's reports, Risky Business, Groundwater Contamination from Texas Coal Ash Dumps and EIP's 2019 National Coal Ash Report Coal's Poisonous Legacy.

For more information about Texas Coal Ash, see Earthjustice's fact sheet, Texas and Coal Ash Disposal in Ponds and Landfills.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
59 / 61
Wells not shown Locations for the following wells are unavailable:

Download the complete dataset to access monitoring information for these wells.

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 boron chromium cobalt fluoride manganese molybdenum selenium strontium sulfate
Pollutants monitored and below guidelines
antimony copper nickel silver
Pollutants not monitored
ammonia, beryllium, cadmium, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, lead, lithium, mercury, nitrate, nitrite, radium, thallium, tritium, uranium

Facility last updated on Tuesday, July 09, 2019 10:25:05 AM EDT