Gas Fires: Turn Off Gas at the Service Meter
You may need to shut off the gas supply to a fire downstream of a meter or appliance. Multiple overlapping streams can be used to allow access to the service meter shutoff valve or the appliance supply line shutoff valve without extinguishing the fire.
In all cases, avoid spraying water at the point where natural gas is being released. Do not spray water into gas lines, and do not fill excavations with water.