St. Clair Power Plant

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St. Clair Power Plant has 10 groundwater monitoring wells, 9 of which have been polluted above federal advisory levels based on samples collected between August 03, 2016 and September 19, 2019. Groundwater at this site contains unsafe levels of lithium, molybdenum, cobalt, arsenic and radium.

Site description

St. Clair Power Plant was a five-unit coal-fired power plant owned by DTE Energy. The plant was located near the St. Clair River in East China, Michigan with a total capacity of 1,547-MW. The plant opened in 1953, with Unit 4 retiring in 2017 and Unit 1 retiring in 2019. The entire facility was retired in May 2022. The two Bottom Ash Basin are constructed such that all CCR is held to approximately 13 feet belowground surface into the native clay‐rich soil. The basins are used for receiving bottom ash and other process flow water from the power plant, which is first sent to the East BAB then to the West BAB through a connecting concrete canal.

You can find the industry-reported data here. For more information about the St. Clair Power Plant, see EIP's 2019 National Coal Ash Report.

Monitoring Wells Wells reporting one or more exceedances for at least one pollutant.
9 / 10
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 cobalt lithium molybdenum radium
Pollutants monitored and below guidelines
antimony barium beryllium boron cadmium chromium fluoride lead mercury selenium sulfate 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 Monday, October 24, 2022 05:40:04 PM EDT