ACADIAN GAS PIPELINE SYSTEM — Gas transmission and gathering — incident on 2013-01-25

Gas transmission and gathering incident in FRANKLIN, ST. MARY County, LA. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 39 NATURAL GAS released, $2,157,000 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: 20130022.

Operator ID: 3.

Reported incident date: 1/25/2013 2:30.

Location detail: 1320+96

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 THE LEAKING NATURAL GAS. ACADIAN SHUT IN THE PIPELINE SEGMENT AND COMPRESSED OUT THE REMAINING NATURAL GAS. AFTER EXCAVATING SITE TO A DEPTH OF TWENTY FIVE FEET AND MAKING AREAS SAFE, AN EXISTING REPAIR CLAMP WAS DETERMIND TO BE LEAKING. REPAIR CLAMP WAS REMOVED AND DISGARDED. A NINE FEET WELD SLEEVE WAS WELDED OVER PINHOLE AREA, U-T WELDS, AND MAGNA FLUXED WELDS AFTER 12 HOURS TO INVESTIGATE ANY FOR ANY SIGNS OF UNDER BEAD CRACKING. THE 16.6 MILE SECTION OF 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: $2,157,133 reported total cost, $1,115,782.7 in 1984 dollars, $2,747,696.456 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.