ACADIAN GAS PIPELINE SYSTEM — Gas transmission and gathering — incident on 2013-03-08

Gas transmission and gathering incident in BELLE RIVER, ST. MARTIN County, LA. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 15 NATURAL GAS released, $334,000 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: 20130033.

Operator ID: 3.

Reported incident date: 3/8/2013 3:54.

Location detail: 1628+10

Cause detail: INTERNAL CORROSION

Cause detail: ACADIAN CHICO B PIPELINE LEAK; A FISHERMAN DISCOVERED BUBBLES COMING FROM A PIPELINE ROW IN SOUTH LOUISIANA WHICH ACADIAN SHARES WITH OTHER PIPELINE COMPANIES; THE FISHERMAN USED THE INFORMATION ON THE ROW PIPELINE MARKERS AND NOTIFIED ACADIAN PERSONNEL OF THE SUSPECTED LEAK. ACADIAN PERSONNEL WORKED WITH OTHER PIPELINE ROW PERSONNEL TO DETERMINE WHICH PIPELINE WAS THE SOURCE OF THE LEAK; IT WAS DETERMINED THAT ACADIAN WAS THE RESPONSIBLE PARTY FOR LEAKING NATURAL GAS. ACADIAN SHUT IN THE PIPELINE SEGMENT AND COMPRESSED OUT THE REMAINING NATURAL GAS. DIVERS WERE CALLED TO THE SITE TO INVESTIGATE FURTHER AND FOUND AN EXISTING REPAIR CLAMP WAS LEAKING OF WHICH WAS REMOVED AND REPLACED. PIPELINE WAS LEAK TESTED AND NO ISSUES WERE FOUND, PIPELINE WAS RETURNED TO SERVICE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $334,051 reported total cost, $172,797.639 in 1984 dollars, $425,496.429 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.