Watershed

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.

In addition to concerns about traffic and increased noise, residents say they worry development might impact the environment.

The Pa. Dept. of Environmental Protection is asking for funding from the state’s next fiscal budget for new water testing equipment.

Mariner East pipeline builder Energy Transfer is back at the area near Marsh Creek State Park to clean up more drilling mud.

At issue are 48 mature trees, which the Fairmount Park Conservancy proposes cutting down to make way for athletic fields.

Scientists discussed the importance of protecting endangered species during an event hosted by WHYY and the Academy of Natural Sciences of Drexel University.

Environmental groups want NOAA to protect horseshoe crab habitats, and restrict how the species are harvested.

Here's what you need to know in Philadelphia, the suburbs, New Jersey and Delaware.

Rain and sleet are expected to create slushy conditions for early commuters before snow moves in by mid-morning.

Researchers will discuss the importance of researching and protecting endangered species, including the Atlantic sturgeon.

Fort Mifflin sits right along the Delaware River. It’s one of many historic sites across the country at risk from climate change.

The Penn America Energy CEO is still bullish on building an LNG facility in Chester. He plans to meet public opposition with public engagement.

Delaware’s Department of Natural Resources and Environmental Control is investigating whether washed ashore tires came from decades-old artificial reefs.

A 27-mile stretch of the Delaware River in the areas of Philadelphia and Camden is not safe for swimming. UPenn researchers evaluate how to improve water quality.