Evacuation orders remained in place for more than 40,000 residents around Garden Grove, Calif., the location of an industrial site containing an unstable tank of toxic chemical.

Tens of thousands of people in southern California, however, remain under evacuation orders due to the failing chemical tank.

Firefighters on Saturday were trying to cool a chemical tank “literally on the edge” of exploding in Garden Grove, California, as they worked to avert a disastrous “worst-case” scenario, the incident’s commander said.

Newsom said the state is 'mobilizing every resource available' after more than 40,000 residents were ordered to evacuate Orange County.