Emergency crews are attempting to stabilize a pressurized chemical tank in Garden Grove after internal temperatures rose to dangerous levels.Governor Gavin Newsom declared a state of emergency to mobilize state resources for 40,000 residents currently under evacuation orders.The GKN Aerospace facility contains thousands of gallons of methyl methacrylate that could rupture or explode due to failing valve systems.The Environmental Protection Agency warned that toxic vapors from the chemical pose severe respiratory and neurological risks to the community.