Cal. Gov. Code § 8585.01

The Office of Emergency Services shall be the lead agency for emergency response to a large, ongoing leak or release of natural gas and associated gases from a natural gas storage facility that poses a significant present or potential hazard to the public health and safety, property, or the environment. The Office of Emergency Services shall coordinate among other state and local agencies the emergency response, public health and environmental assessment, monitoring, and long-term management and control of the leak.