Watershed

On Monday, the DEP said Chemours is currently using PFAS-replacement chemicals at the Chambers Works site, and is discharging the chemical into water and air.

Pennsylvania will pay to help remove unregulated toxic contaminants from 17 wells in the Bucks County communities of Warminster, Ivyland, Warwick and Warrington.

Philadelphia’s ‘road map’ for Eastwick development moves a process 60 years in the making forward.

The state Department of Environmental Protection ordered the manufacturers Monday to provide a detailed account of their use and discharge of so-called PFAS substances.

Water quality improvement projects in the Delaware River Watershed get $4.1 million under the new Delaware River Basin Conservation Act.

Pipeline safety advocates worry the pressure on the 16-inch Mariner East 2x would pose greater dangers.

The Global Water Alliance symposium focused on challenges to clean-water access and underscored that the problem isn’t confined to the developing world.

Frequenters of the free-of-charge drop-off site must look for other options as the state prepares to return the Polly Drummond property to its natural state.

Gov. Tom Wolf is once again pushing for a severance tax on Pennsylvania’s natural gas producers — this time by focusing on how the money could be used for schools.

Energy Transfer says the probe into the construction of the Mariner East pipelines "has no legitimate basis."

The interim report foresees a ‘massive’ construction project costing ‘several billion dollars.’

A controversial proposal to build an industrial-wastewater treatment facility in Falls Township is close to regulatory approval after years of contention.

The district attorney's probe of the Mariner East project began in December.

Deemed the most ecologically sensitive, Category One waterways are protected against any degradation in water quality.

Study suggests a variety of ways to reduce back bay flooding: storm surge barriers, levees, floodwalls, building lifts, living shorelines, and reefs.