At ~9:45 PM, Westmoreland 911 dispatched Station 20 (Murrysville VFC) to assist Station 22 (Export VFC) for an odor of natural gas in an apartment on Washington Avenue in Export. Station 20 responded with 10 firefighters (including Assistant Chief 20, Captain 20, Lieutenant 20) going to the station to crew Truck 20 and Engine 20. Westmoreland 911 also dispatched the following additional stations to support Station 22: Station 64 (White Valley VFC), Station 78 (Sardis VFC), Station 30 (Delmont VFC), Station 63 (Claridge VFC), and Station 610 (Murrysville VFC). Chief 22 was first on scene, established the command, and held the incident to Station 22. Command 22 returned all additional responding stations. Truck 20 and Engine 20 remained in station and in service.