# ENBRIDGE OFFSHORE (GAS TRANSMISSION) LLC — Gas transmission and gathering — incident on 2012-09-05

- **operation:** document
- **citation:** PHMSA Report 20130110
- **title:** ENBRIDGE OFFSHORE (GAS TRANSMISSION) LLC — Gas transmission and gathering — incident on 2012-09-05
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2013-12-03
- **effective on:** 2012-09-05
- **summary:** Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 124 NATURAL GAS released, $164,574 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. PHMSA trend classification: significant incident, not serious.
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**body:**

Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 124 NATURAL GAS released, $164,574 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: 20130110.

Operator ID: 18646.

Reported incident date: 9/5/2012 16:38.

Cause detail: INTERNAL CORROSION

Cause detail: A GAS LEAK WITH NO SHEEN WAS DISCOVERD BY THIRD PARTY FLYING OVER THE AREA ON SEPTEMBER 5TH, 2012 AND REPORTED TO ENBRIDGE. ENBRIDGE SENT A HELICOPTER TO THE AREA TO INVESTIGATE AND GET LAT/LONG COORDINATES. THE LAT/LONG COORDINATES WERE SENT TO DRAFTING TO PLOT THE LOCATION AND OUR LINE LOCATION. ENBRIDGE HAS A LINE IN THE AREA, SO A DIVE BOAT WAS HIRED TO INVESTIGATE. THE DIVERS ARRIVED ON LOCATION AND DISCOVERED A PIN HOLE LEAK AT THE 6 O'CLOCK POSTION ON LINE SEGMENT 2814. THIS INCIDENT WAS REPORTED LATE DUE TO THE CHANGE IN THE REPORTING SYSTEM. I CONTACTED TOM BRAVO BY PHONE AND E-MAIL SEVERAL TIMES UNTIL I WAS APPROVED TO USE THE NEW SYSTEM. L. B. STEVENS

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $165,074 reported total cost, $87,098.673 in 1984 dollars, $213,981.62 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.
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