Indian River Power Plant

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Indian River Power Plant has 27 groundwater monitoring wells, 16 of which have been polluted above federal advisory levels based on samples collected between April 19, 2010 and September 17, 2017. Groundwater at this site contains unsafe levels of manganese, sulfate, arsenic, cobalt, lithium, boron, molybdenum, beryllium, selenium and mercury.

Site description

The Indian River Power Plant is a 410 MW coal-fired plant located near Millsboro, Delaware along the Indian River. Upon commissioning, the plant disposed of its coal ash waste on Burton Island, east of the power plant. Berms were built using ash and dredge spoils on Burton Island, resulting in an elevation of the ground surface by about 15 feet, and the conversion of tidal marshes and flats to land made of coal ash contaminated with heavy metals. In 1980, Indian River Power Plant built a landfill on the mainland to dispose of waste, and ceased disposal on Burton Island.

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 Indian River’s Phase II Landfill is regulated under the CCR rule. You can find the industry-reported data here. For more information on Plant Indian River, see EIP’s 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
16 / 27
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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 beryllium boron cobalt lithium manganese mercury molybdenum selenium sulfate
Pollutants monitored and below guidelines
antimony barium cadmium chromium copper fluoride lead radium thallium
Pollutants not monitored
ammonia, cyanide, gross alpha particle, gross beta particle, hexavalent chromium, nickel, nitrate, nitrite, silver, strontium, tritium, uranium

Facility last updated on Tuesday, July 16, 2019 10:27:48 AM EDT