Activists Mull Novel Clean Water Act Suits To Limit Airborne Mercury

Environmentalists in states with high levels of mercury in water are exploring a potentially landmark lawsuit claiming that power plant smokestacks can be regulated under the Clean Water Act (CWA) as point sources of pollution -- one of several innovative strategies environmental groups are considering in an effort to force steep cuts in air emissions of mercury that are causing water pollution. The possible new efforts come after EPA rejected a novel Massachusetts approach to exempt mercury-impaired waters from the...