Sierra Club bemoans decision allowing Ameren to evade NSR remedy

The Sierra Club, which has backed EPA in a long-running new source review (NSR) enforcement case against an Ameren Missouri plant, is expressing disappointment that a federal appeals court rejected the government’s request to reconsider whether the company should be forced to install controls at a nearby facility to mitigate excess emissions. “We were disappointed to see that Ameren will not have to offset the pollution it discharged at Rush Island in violation of the Clean Air Act by adding...