TEXAS EASTERN TRANSMISSION, LP (SPECTRA ENERGY PARTNERS, LP) — Gas transmission and gathering — incident on 2018-10-26

Gas transmission and gathering incident in KINDER, ALLEN County, LA. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 35600 NATURAL GAS released, $1,500 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: 20180119.

Operator ID: 19235.

Reported incident date: 10/26/2018 12:30.

Location detail: 82

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: A LANDOWNER NOTIFIED ENBRIDGE THAT THE SOUND OF A NATURAL GAS RELEASE WAS COMING FROM THE VICINITY OF THE TEXAS EASTERN TRANSMISSION, LP NATURAL GAS PIPELINE APPROXIMATELY 2.5 MILES NORTHWEST OF KINDER, LOUISIANA IN A REMOTE AREA. ENBRIDGE PERSONNEL WERE IMMEDIATELY DISPATCHED TO THE SITE AND CLOSED THE BLOCK VALVE BELOW THE RELIEF VALVE WHICH WAS THE SOURCE OF THE GAS RELEASE. BECAUSE THE BLOCK VALVE IMMEDIATELY BELOW THE RELIEF VALVE WAS CLOSED WHICH COMPLETELY ISOLATED THE SOURCE OF NATURAL GAS RELEASE, IT WAS NOT NECESSARY TO CLOSE THE MAINLINE BLOCK VALVES UPSTREAM AND DOWNSTREAM OF THE RELIEF VALVE. THE PRESSURE SENSING LINE BETWEEN THE RELIEF VALVE PILOT AND MAINLINE WAS DETERMINED TO BE BLOCKED BY FOREIGN MATERIAL. THE SENSING LINE WAS CLEARED OF FOREIGN MATERIAL AND THE RELIEF VALVE RETURNED TO SERVICE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EQUIPMENT FAILURE — MALFUNCTION OF CONTROL/RELIEF EQUIPMENT.

PHMSA indexed costs: $117,200 reported total cost, $108,757.905 in 1984 dollars, $134,422.994 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.