Coleto Creek Power Station

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Coleto Creek Power Station has 17 groundwater monitoring wells, 17 of which have been polluted above federal advisory levels based on samples collected between May 06, 2010 and October 03, 2019. Groundwater at this site contains unsafe levels of cobalt, arsenic, boron, molybdenum, nickel, lead, mercury, manganese, cadmium and thallium.

Site description

Coleto Creek Power Station is a 622-MW coal-fired power plant that began operations in 1980. Coleto Creek is owned by Dynegy in Fannin, Texas in Goliad County. Dynegy has planned for the station’s retirement by 2027. The power station has two ash disposal areas regulated under the federal coal ash rule: the Primary Ash Pond and the Secondary Ash Pond. This site 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.

You can find the industry-reported data here.For more information on the Coleto Creek Power Station, see EIP's reports, Dirty Kilowatts, 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.
17 / 17
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 boron cadmium cobalt lead manganese mercury molybdenum nickel thallium
Pollutants monitored and below guidelines
antimony barium beryllium chromium copper fluoride hexavalent chromium lithium radium selenium silver sulfate
Pollutants not monitored
ammonia, cyanide, gross alpha particle, gross beta particle, nitrate, nitrite, strontium, tritium, uranium

Facility last updated on Monday, October 24, 2022 12:52:35 PM EDT