Environmental Groups Sue to Stop Discharge of Toxic Metals from Coal Ash

Three environmental groups — the Iowa Environmental Council, the Environmental Law and Policy Center, and Sierra Club — have sued the Iowa Department of Natural Resources over permits for the coal ash landfill at the Ottumwa power plant, co-owned by Alliant Energy and MidAmerican Energy. Coal ash is leftover waste from burning coal, and it contains toxic metals like arsenic, mercury, and lead that can cause cancer and other health problems. The lawsuit says the DNR's permits let the plant keep discharging "leachate" — rainwater that seeps through the ash and picks up these metals — into groundwater and waterways without any deadline for stopping it, even though federal rules from 2024 require facilities to end this discharge "as soon as possible."

The suit also challenges the plant's release of groundwater already polluted with heavy metals. The groups argue Alliant looked at ways to treat the contamination but only addressed iron, not the other toxic metals, and is currently trucking waste to the city's wastewater treatment plant instead of building proper treatment. They're asking the court to force the DNR to require Alliant to stop the pollution.

This case is specific to Ottumwa, Iowa, but it points to a broader issue: coal ash storage sites across the country can leach toxic metals into local water supplies if not properly managed. If you live near a coal ash site or get water from a system that could be affected by one, this is the kind of local environmental and legal fight worth keeping an eye on, since it may shape how such sites are regulated going forward.