Urbanization has decreased the amount of water that seeps into the ground.

Starting this Saturday, people hoping to cool off in Philadelphia’s most beloved swimming hole might have to change their plans.

Resort owners worry the greater protections could hamper future development.

The U.S. Fish and Wildlife Service and the National Fish and Wildlife Foundation are launching a $4.3 million fund to support conservation efforts in the Del. River watershed.

Construction of the Mariner East 2 pipeline resulted in cloudy water for some; others lost use of their wells

As happens on many blocks around the city, heavy rains used to turn the southeast corner of Malcolm X Memorial Park in West Philadelphia into a deep puddle.

The park plays a significant role in Delaware's history — or more accurately — in Delaware geography.

Morning Edition host Jennifer Lynn talks with investigative environmental reporter Kyle Bagenstose about the EPA hearing on water issues in Bucks and Montgomery counties.

Plans to build a power line under the Delaware River may be back on the table after a decision to reconsider how the costs would be split.

State scientists have recommended health limits for 12 species.

A Delaware professor is using a migratory bird species that nests in Delaware to predict the severity of the coming hurricane season.

While beach towns in N.J. and Del. work to curb the use of plastic straws, bags, containers, and even balloons, researchers say it appears the real problem lies upstream.

A large water main break flooded a number of streets in downtown Philadelphia early Tuesday.

Since 1987, Greg Crance has run a hot dog stand in the middle of the Delaware River. It's a beautiful office, but a fickle business.