HFCo. #1 was dispatched at 09:45 to a confirmed gas line strike at the Prologis building under construction at 3819 Prologis Parkway. 5351 (Chief Seip) responded to the scene and established 53 command. 5351 found a substantial amount of gas leaking from the building service that had been struck by a contractor operating a back-hoe. UGI was notified by NC 911 and a crew was dispatched. 5312 responded with staffing of 4 and was ordered by command to stage west of the scene. UGI crews arrived a short time later and secured the leak.