Firefighters on Sunday contained a blaze that burned roughly 20 acres in Pittsburg, according to fire officials.
The fire broke out in the area of Pittsburg-Antioch Highway and Arcy Lane, according to fire officials.
The blaze required a four-alarm response because it was burning near a wastewater treatment facility and a hazardous waste disposal facility, according to fire officials.
It is not clear what sparked the blaze.
Further information was not available.
