San Miguel Electric Plant

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San Miguel Electric Plant has 26 groundwater monitoring wells, 26 of which have been polluted above federal advisory levels based on samples collected between May 24, 2016 and August 21, 2019. Groundwater at this site contains unsafe levels of sulfate, lithium, boron, beryllium, cobalt, cadmium, arsenic, selenium, thallium, radium, fluoride, mercury, molybdenum and antimony.

Site description

The San Miguel Electric Plant is owned by the San Miguel Electric Cooperative, Inc and went into service in 1982. San Miguel is located in South Central Atascosa County in Christine, Texas. San Miguel’s 2016 Inspection Report lists the Equalization Pond, Ash Pond, and Ash Pile as disposal areas regulated under the federal coal ash rule. These disposal areas are 25 acres, 26 acres, and one acre in size.

You can find the industry reported data here. For more information on San Miguel Electric Plant, see EIP's reports, America's Top Power Plant Toxic Air Polluters, 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 factsheet, Texas and Coal Ash Disposal in Ponds and Landfills.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
26 / 26
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. antimony arsenic beryllium boron cadmium cobalt fluoride lithium mercury molybdenum radium selenium sulfate thallium
Pollutants monitored and below guidelines
barium chromium lead
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 Friday, October 14, 2022 04:48:11 PM EDT