Wastewater from 83 municipalities flows from a flush to ALCOSAN for treatment. But as little as one-tenth of an inch of rain ...

Ron Baraff of Rivers of Steel says without the Monongahela River, the Pittsburgh region would not have developed into an ...

The Monongahela River began to recover in the early '70s, but still bears the marks of coal mining and other heavy industries ...

Developers of a massive data center in Springdale Borough took questions from residents about noise, and water and energy usage.

The governor said PJM Interconnection has “months, not years” to make reforms that will keep costs down for consumers.

Companies looking to build new power plants or factories may be able to start construction before getting required air pollution permits, under a proposal from the Environmental Protection Agency.

We’re launching a new series about the Monongahela River. From the mountains of West Virginia, through valleys, into downtown Pittsburgh, the Mon has seen industrial growth and decline, and weathered ...