ANR PIPELINE CO — Gas transmission and gathering — incident on 2015-02-27

Gas transmission and gathering incident in GRAND CHENIER, CAMERON County, LA. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 1 released, $75,000 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: 20150039.

Operator ID: 405.

Reported incident date: 2/27/2015 16:00.

Location detail: 8003767

Cause detail: EXTERNAL CORROSION

Cause detail: ON FRIDAY 27 FEBRUARY 2015 AT 16:00 , A PINHOLE LEAK WAS IDENTIFIED AT A THREAD-O-LET CONNECTION ON BLOCK VALVE (HV302) TO A SEPARATOR PRESSURE VESSEL AT GRAND CHENIER LIQUID HANDLING FACILITY BY TRANSCANADA OPERATIONS STAFF DURING DAILY ACTIVITIES. UPON THE IDENTIFICATION OF THE LEAK, THE VALVE WAS ISOLATED AND BLOWN DOWN AT 16:30 ON 27 FEBRUARY. THE VALVE IS LOCKED OUT OF SERVICE UNTIL REPAIRED. OPERATIONS AT THE FACILITY ARE UNAFFECTED BY THE OUT OF SERVICE VALVE.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: CORROSION — EXTERNAL.

PHMSA indexed costs: $75,154 reported total cost, $37,767.805 in 1984 dollars, $92,834.153 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.