State and federal agencies are investigating a recent mineral oil spill at Priest Rapids Dam as cleanup efforts conclude.

A diesel pump a local contractor was using to divert water leaked 344 gallons Aug. 3 and another 332 gallons Aug. 7.

Crews are cleaning up after thousands of gallons of diesel fuel spilled after a train derailment in Hartford. Officials said it is unclear how long it will take to clean up the mess and fix the ...

Crews were working Thursday morning to contain and clean up a 2,000-gallon diesel fuel spill in Baltimore‘s harbor, according to state and city officials. Initially, Johns Hopkins Hospital reported a ...

Two water samples showed levels of arsenic or lead that exceeded the state's guidelines for groundwater cleanup.

Federal authorities are seeking to contain and clean up the damage from a decades-old oil well in southeast Louisiana that spewed crude and natural gas for more than a week. “Gaining control of the ...

The Environmental Protection Agency has authorized the removal of containment booms in the Gunnison River as the ...

Hazmat crews responded to a South Milwaukee storage facility on Monday, May 26. The storage facility is still dealing with the cleanup. The South Milwaukee Fire Department said there was no threat to ...

It is not yet clear how long it will take to clean up a now year-old gas leak in Ventura. Here's what to know.