COLUMBIA GAS TRANSMISSION CORP — Gas transmission and gathering — incident on 2012-12-11

Gas transmission and gathering incident in SISSONVILLE, KANAWHA County, WV. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 76000 NATURAL GAS released, $410,000 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20130001.

Operator ID: 2616.

Reported incident date: 12/11/2012 12:41.

Location detail: 237+13

Cause detail: EXTERNAL CORROSION

Cause detail: ON DECEMBER 11, 2012, A 20 INCH DIAMETER NATURAL GAS TRANSMISSION PIPELINE RUPTURED IN SISSONVILLE, WEST VIRGINIA. THE NATURAL GAS IGNITED AND SEVERAL NEARBY RESIDENCES WERE DAMAGED AS A RESULT. THE FAILED TRANSMISSION PIPELINE IS OWNED, OPERATED AND MAINTAINED BY COLUMBIA GAS TRANSMISSION, LLC (COLUMBIA). AN INVESTIGATION INTO THE CAUSE OF THE INCIDENT WAS CONDUCTED BY THE NATIONAL TRANSPORTATION SAFETY BOARD (NTSB). COLUMBIA PARTICIPATED IN THIS INVESTIGATION. AREAS OF INVESTIGATION INCLUDE THE TIME OF THE RUPTURE, THE RECOGNITION OF THE RUPTURE, THE RESPONSE TO THE RUPTURE, LABORATORY ANALYSIS OF THE RELEVANT SECTION OF PIPE, AND OTHER AREAS THAT BEAR ON THE INFORMATION COVERED BY THIS FORM. THE PROBABLE CAUSE OF THE FAILURE OF LINE SM-80 AS DETERMINED BY THE NTSB WAS PRESENTED IN THE NTSB INCIDENT REPORT (NTSB/PAR-14/01 PB2014-103977).

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — EXTERNAL.

PHMSA indexed costs: $4,376,218 reported total cost, $2,393,081.015 in 1984 dollars, $5,598,742.797 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.