The lawsuit is challenging a plan to allow spikes of sulfur dioxide at two power plants. Even at low levels, SO2 can affect asthmatics in as little as two minutes.
The agency went against recommendations from its own scientists that a stronger standard could save lives. Pa. is one of four states that don't meet the current standard.
The bill would only require spills be reported if they violate water quality standards or are reportable under federal rules. Currently, a spill of any size must be reported.
