TRANSCONTINENTAL GAS PIPE LINE COMPANY — Gas transmission and gathering — incident on 2015-10-10

Gas transmission and gathering incident in PRINCETON, MECER County, NJ. Reported cause: OTHER INCIDENT CAUSE. Reported consequences: 0 fatalities, 0 injuries, 6271 NATURAL GAS released, $0 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: 20150127.

Operator ID: 19570.

Reported incident date: 10/10/2015 8:15.

Location detail: 1776.75

Cause detail: MISCELLANEOUS

Cause detail: DUE TO THE LOCATION OF A VALVE ON A MAINLINE TRANSMISSION SYSTEM AN ATTACHED VALVE GREASE LINE HAD TO BE EXTENDED. A FUNCTION OF THE MODIFICATION PROCESS INCLUDED CUTTING THE GREASE LINE. WHEN THE GREASE LINE WAS CUT AN INTERNAL VALVE COMPONENT FAILED ALLOWING GAS TO ESCAPE, THE TRANSMISSION LINE SEGMENT WAS ISOLATED AND THE GREASE LINE WAS REPAIRED WITH A COUPLING. AFTER THE VALVE GREASE LINE WAS REPAIRED THE TRANSMISSION LINE SEGMENT WAS PRESSURED UP AND PUT BACK IN SERVICE.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: ALL OTHER CAUSES — MISCELLANEOUS.

PHMSA indexed costs: $15,700 reported total cost, $14,557.512 in 1984 dollars, $17,874.413 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.