After crews were able to contain the leak, now environmental groups are working to learn if there was any damage done.

Crews worked Tuesday to clean what they could of a hydraulic oil spill that happened at the Braeburn Alloy Steel Plant Monday

Hydraulic fluid spilled from Braeburn Alloy Steel Mill into the Allegheny River; containment efforts successful.

Hydraulic fluid spilled along the river bank in Lower Burrell outside of the Braeburn Alloy Steel Plant around 3 p.m. Chief Brennan Sites of the Lower Burrell Volunteer Fire Company #3 said they were not sure how much fluid spilled out but the Westmoreland County Hazmat Team was called in and they were able to contain the spill.

Hydraulic fluid was released into the Allegheny River from Braeburn Alloy Steel in Lower Burrell on Monday afternoon, prompting warnings to downriver water suppliers, according to emergency officials.

LOWER BURRELL, Pa. — A leak at a steel plant sent hydraulic fluid into the Allegheny River on Monday. The incident happened at Braeburn Alloy Stell in Lower Burrell around 3 p.m. The local fire chief says the leak extended for almost two miles before it was contained.

The Pa. Department of Environmental Protection was able to contain and cleanup an oil spill from a steel mill in Lower Burrell, but one environmental group still has concerns. KDKA's Chris DeRose has the story.

Two leaking oil wells from the 1940s have been plugged to prevent further oil spills into an Ottawa County lake.

While officials are unsure how much fluid spilled into the Allegheny River in Lower Burrell, they have said that it is contained.

Water rescue crews and first responders were on the scene Monday following an oil spill at a plant in Lower Burrell, Westmoreland County. Westmoreland County dispatch confirmed to Pittsburgh's Action News 4 that officials were on the scene at the Braeburn Alloy Steel Mill along Braeburn Road before 4 p.