A bizarre hazardous materials situation is over in Menlo Park.
Police had sealed off an area around Edison Technology Park about 2:30 a.m. Wednesday while crews investigated. Five hours later, the area is now considered safe and crews have left the scene.
San Mateo sheriff's deputies stumbled across some men in a pickup truck and stopped to talk to them. He smelled some sort of chemical smell. It turns out some employees of Immune Path were heating up gold in a beaker of chromatic acid in the back of the pickup truck. There was an extension cord running from the pickup truck into Immune Path. It's a process that is supposed to take place inside a lab - not in open air.
No one was hurt.
