Stanton Energy Center

Download Data

Stanton Energy Center has 4 groundwater monitoring wells, 1 of which have been polluted above federal advisory levels based on samples collected between September 09, 2015 and October 30, 2017. Groundwater at this site contains unsafe levels of sulfate, lithium, radium, cobalt, arsenic, molybdenum and selenium.

Site description

The Orlando Utilities Commissions' Stanton Energy Center is located in central Florida outside of Orlando. The plant began operating in 1987 with one 425 MW coal-fired operating unit. A second 429 MW coal-fired unit was built in 1996, and a 656 MW natural gas-fired unit began operating in 2003. Groundwater beneath the site flows from west to east, generally, except north of the coal storage area where it flows to the north.

A landfill, called the combustion waste storage area, and five lined ponds are operated on-site.The landfill primarily contains scrubber sludge and fly ash, and other materials dredged from the site's lined ponds and other plant wastes. A 2010 groundwater investigation revealed that the combustion waste storage area impacted groundwater to its east, likely after groundwater levels rose to the base of the landfill.

A July 2010 investigation of pond liner integrity at the site's five lined ponds identified potential issues with design (water levels frequently overtopped the liners and associated vent pipes, resulting in leaks) and maintenance (torn liners, damage to underlying concrete, and build-up of sediments that interfere with liner effectiveness) that required repairs and/or remediation. According to a January 2013 correspondence, the Utilities Commission planned to replace the liners and make necessary repairs by the end of 2016.

The site is among the U.S. EPA'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. For more information about Stanton Energy Center, see EIP reports Dirty Kilowatts, Out of Control, and visit

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
1 / 4
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 cobalt lithium molybdenum radium selenium sulfate
Pollutants monitored and below guidelines
antimony barium beryllium boron cadmium chromium fluoride lead mercury 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 Friday, June 14, 2019 11:19:10 AM EDT