UPDATE: Patterson Fire in El Dorado County grows to 30 acres, 20% contained, officials say

7:26 p.m. update:

The Patterson Fire has grown to 30 acres, according to Cal Fire. Authorities said the fire was 20% contained as of 7:26 p.m.

The area is not being repopulated yet, according to Cal Fire’s most recent report.

Original Story:

Cal Fire personnel staved off a growing blaze named the Patterson Fire as it neared homes in the Diamond Springs area in El Dorado County on Thursday afternoon.

The fire grew to 20 acres and was still 0% contained by 5:30 p.m., according to a Cal Fire update. It said the fire was burning at a moderate rate of spread in grass and oak woodland.

A 153-personnel team, three helicopters and 12 engines are working to contain the fire.

The fire was reported shortly after 4 p.m. and grew to just shy of 10 acres by 5 p.m., said Diana Swartz, spokeswoman for Cal Fire.

“When it gets to 10 acres, that’s when we start getting really worried,” Swartz said.

All homes on Patterson Drive, from Calico Mine Road south, are under an evacuation order, according to the El Dorado County Sheriff’s Office. An evacuation center is set up at the Diamond Springs Fire Hall at 3734 China Garden Road.

Air tankers carrying thousands of pounds of fire retardant were dispatched to the blaze and were dropping the pink substance along hillsides in the area.

Swartz said the fire is burning in grassy terrain with heavy oak brush, making it difficult for crews to access the area.

The fire was not listed on Cal Fire’s major incident’s page until 5:50 p.m.

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Caroline Ghisolfi, from Stanford University, is a local news reporter for The Sacramento Bee, focusing on breaking news and health care. She grew up in Milan, Italy.