AG Shapiro filed 15 criminal charges, including nine felonies, after more than a decade since Cabot's fracking activities caused well water contamination.
New York and New Jersey have used a provision of the Clean Water Act to halt pipeline projects carrying shale gas from Pennsylvania across state lines.
The brain-harming metal is discharged directly into the river or carried to it on air currents. Some argue authorities are doing too little to stop both routes of pollution.
The Environmental Integrity Project says about a million more pounds of nitrogen pollution are getting into the bay. Half of Pa. land drains into the Chesapeake.
Pa.'s climate assessment predicts chicken farms will move to Pennsylvania to escape sweltering temperatures in the South, causing more water pollution.
