ALL CLEAR. The incident response has ended. Check http://www.sc.edu/CarolinaAlert for more info.
This afternoon, a possible gas leak in the Horizon Building was reported to the USC Division of Law Enforcement and Safety. Columbia Fire, Columbia HazMat, USC Facilities, USC Health and Safety, and USC Law Enforcement personnel responded to the building.
After an assessment of the facility, HazMat personnel cleared the building and determined it to be safe to occupy at this time. All streets have been reopened.