Dolet Hills Power Station

Download Data

Dolet Hills Power Station has 45 groundwater monitoring wells, 29 of which have been polluted above federal advisory levels based on samples collected between June 24, 2010 and October 09, 2019. Groundwater at this site contains unsafe levels of lithium, sulfate, nickel, cobalt, boron, molybdenum, arsenic, radium, lead, selenium and fluoride.

Site description

Cleco Corporation's Dolet Hills Power Station was located near Mansfield, Louisiana in DeSoto Parish. The station opened in 1986 and had one coal-fired unit with a capacity of 650-MW. Cleco retired the facility in 2021. It operates several waste disposal areas including Ash Basin No. 2, Ash Basin No.1, Landfill Surface Impoundment and Fly Ash/Scrubber Sludge Landfill. All areas except for the Landfill Surface Impoundment are regulated under the CCR rule. The Dolet Hill Power Station is listed among the U.S. EPA's potential damage cases, indicating that it has 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 about the Dolet Hills Power Station, see EIP's 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
29 / 45
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 boron cobalt fluoride lead lithium molybdenum nickel radium selenium sulfate
Pollutants monitored and below guidelines
antimony barium beryllium cadmium chromium copper mercury thallium
Pollutants not monitored
ammonia, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, manganese, nitrate, nitrite, silver, strontium, tritium, uranium

Facility last updated on Wednesday, October 19, 2022 10:58:59 AM EDT