ANR PIPELINE CO — Gas transmission and gathering — incident on 2015-07-27

Gas transmission and gathering incident in JENA, LA SALLE County, LA. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 8600 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: 20150107.

Operator ID: 405.

Reported incident date: 7/27/2015 14:00.

Location detail: MP 76.8

Cause detail: MALFUNCTION OF CONTROL/RELIEF EQUIPMENT

Cause detail: ON 27 JULY 2015 AT 10:16 CT, TWO EMERGENCY SHUTDOWN DEVICE (ESD) VENT VALVES AT JENA COMPRESSOR STATION OPENED AND RELEASED NATURAL GAS TO THE ATMOSPHERE. APPROXIMATELY 8.6 MMCF OF NATURAL GAS WAS RELEASED PRIOR TO THE VALVES BEING SHUT AT 10:25 CT. THE INCIDENT WAS REPORTED TO THE NRC AT 14:20 CT ON 27 JULY 2015. NO PROPERTY DAMAGE OR INJURIES WERE IDENTIFIED DUE TO THE INCIDENT.

PHMSA trend classification: not significant, not serious.

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

PHMSA indexed costs: $24,000 reported total cost, $22,253.521 in 1984 dollars, $27,323.944 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.