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Investigators are trying to determine whether a fire at a Salt Lake City garbage processing site is related to two similar fires in the past week.

A trash fire was reported at Central Valley Waste Management, 7213 West California Avenue (1280 South) about 5 p.m. Sunday, said Salt Lake City Fire Department spokesman Jasen Asay.

Crews contained the fire, and waste management workers smothered it with a truckload of dirt, Asay said.

It is the third fire at a waste facility in a little more than a week, Asay said. A fire broke out June 9 at a salvage yard, and another fire was reported late Saturday at a composting facility, Asay said.

"That does have our investigators' attention," Asay said.

Crews were investigating the cause Sunday night.

In an unrelated wildfire, crews expected to contain Lake Mountain's Wiley fire on Monday. The Utah County fire reached 208 acres and was caused by humans, said BLM spokeswoman Cami Lee.

A "Red Flag" warning remained in effect across much of the state, including the Wasatch and mountains, the Manti-La Sal National Forest, and the mountains and deserts of central and southern Utah. The warning indicates a potential for "explosive fire growth" in the event of a blaze.