Federal judge rules Ameren’s Rush Island plant violates Clean Air Act

A federal judge in St. Louis ruled Monday that Ameren Missouri’s coal-fired Rush Island power plant violates the Clean Air Act, a decision that could ultimately force the utility to spend hundreds of millions of dollars on pollution equipment.

Judge Rodney Sippel said the Jefferson County plant “emitted significantly more pollution” after the St. Louis-based utility made major modifications to boost the output of its power-generating units without obtaining proper permits.

In 2011, the Environmental Protection Agency filed a lawsuit against Ameren, alleging that the utility illegally installed boiler equipment that raised emissions of sulfur dioxide, a toxic gas that can cause asthma and worsen respiratory conditions.

The judge will set a meeting to determine what actions Ameren should take to remedy the violations.

Read more: St. Louis Public Radio, St. Louis Post-Dispatch

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