A fire continues to burn underground at the closed Pasco Sanitary Landfill, but its size and temperature have been reduced, according to the Washington State Department of Ecology.
The fire, which was about 25 feet in diameter this spring, has burned for a little more than a year at the landfill northwest of Pasco near the intersection of Kahlotus Road and Highway 12. The fire is in an area of the landfill where bales of household and other municipal waste and construction debris were buried before 1989.
Soil has been placed on areas where the ground had settled and cracks and smoke appeared to help put out the fire. That was done in December 2013 and April and May 2014. Carbon dioxide has been repeatedly injected into the area where the fire is burning to reduce heat and the available oxygen that is feeding the fire.
About 65 probes have been installed near the fire to monitor its status. There is no immediate threat to the public, including people living in the area, according to the state.
The state plans a public meeting on cleanup options at the landfill in 2015, with details to be announced. The state has posted more information at http://bit.ly/1x3Nwuw.