Watershed

The designation requires that releases of PFAs and PFOs into soil or water be reported to federal, state or tribal officials if they meet or exceed certain levels.

Researchers say weed killers can harm the environment and pose potential human health risks.

Drinking water providers are seeking funding to cover the costs of eliminating toxic PFAS from its water supplies.

Water providers will have a total of five years to test and treat their drinking water for PFAS.

There’s a steady pipeline of projects planned along the Philly waterfront — including apartments, retail and a public park — even though one developer paused mid-construction.

Heavy rain events are becoming more frequent and are lasting longer. Pa.'s insurance commissioner says “not even close” to enough people have flood insurance.

Water providers and environmental agencies have several tips to help homeowners find leaks and cut down on water waste.

Filed a year after devastating flash floods killed seven people in Bucks County, the lawsuit alleges the oil industry deceived the public about its climate impact.

Aravind Krishnan is developing technology that can test for bacterial toxins using a plant-based alternative to horseshoe crabs.

With a new entrance opening Friday, the Independence Seaport Museum turns away from the I-95 cap, toward Spruce Street Harbor Park.

Residents of a gated community in Delaware say they’re worried they could lose their beloved waterfall, and a piece of history, if a dam is removed to protect fish species.

A seasonal program that prevents utility shutoffs in New Jersey ends on Friday.

A new study published in Nature measures whether land across 32 U.S. coastline cities is sinking or rising, and combines it with sea-level projections.

Residents with private wells in parts of Montgomery County have relied on bottled water or filtration systems since the 1990s.

The volunteers are a formidable force wielding buckets, trash cans, wire cutters and even chainsaws in the fight against trash.