Update on WV Pipeline Explosion Near Charleston Accidents | Columbia Pipeline Group | Energy Services | Industrywide Issues | Kanawha County | NiSource | Pipelines | West Virginia December 13, 2012December 13, 2012 On Tuesday, the 20-inch Columbia Gas Transmission natural gas pipeline exploded near Sissonville, WV—about 10 miles from Charleston (see this MDN story). Yesterday, NiSource, the parent company Columbia Gas, issued this update on the explosion: Please Login to view this content. (Not a member? Join Today!) Related