Module 3. Gas Incident Response
Parking, safeguards and evacuation
If a natural gas leak is detected or suspected, confirm your dispatcher has notified the local gas utility and follow the steps listed in this section.
- Approach cautiously and stay upwind. A distance of 100 meters (330 feet) is recommended if possible.
- Park safely out of the collapse zone of involved structures and away from storm sewer grates, manhole covers and gas valve covers.
- Never enter a manhole, sewer or any other type of underground vault.
- Eliminate any potential ignition source, such as vehicle engines, flame-producing devices and anything that could produce sparks. Use intrinsically safe radios and flashlights.
- If you must approach the incident, involve the minimum number of personnel, and be sure each person is wearing full personal protective equipment (PPE) and self-contained breathing apparatus (SCBA).
- If it is safe to do so, monitor the atmosphere using multiple monitors.
- Maintain a safe standoff distance from buildings with gas.
- Evacuate 100 meters (330 feet) in all directions, if possible. For larger leaks, evacuate downwind for at least 800 meters (½ mile) if possible.
- The incident commander will make the final determination of the extent of the evacuation.
- Secure the area with caution tape, and reroute traffic if necessary.
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