A chemical tank leak in Garden Grove, Orange County, has led to the evacuation of 40,000 residents. - Evacuation orders affect approximately 40,000 people in Garden Grove.
- The leak involves a hazardous chemical from a storage tank. - Emergency shelters have been opened at local community centers.
- Air quality monitoring and investigation into the cause are ongoing. Authorities continue to provide updates and urge residents to follow evacuation orders for safety.