# ENBRIDGE OFFSHORE (GAS TRANSMISSION) LLC — Gas transmission and gathering — incident on 2011-12-29

- **operation:** document
- **citation:** PHMSA Report 20130106
- **title:** ENBRIDGE OFFSHORE (GAS TRANSMISSION) LLC — Gas transmission and gathering — incident on 2011-12-29
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2013-11-22
- **effective on:** 2011-12-29
- **summary:** Gas transmission and gathering incident. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 80 NATURAL GAS released, $196,327 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, 80 NATURAL GAS released, $196,327 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: 20130106.

Operator ID: 18646.

Reported incident date: 12/29/2011 11:55.

Cause detail: INTERNAL CORROSION

Cause detail: A REPAIR ON THE PIPELINE WAS COMPLETED BY INSTALLING A CLAMP ON THE LILNE. WHILE THE PIPE WAS BEING PRESSURED UP TO TEST THE CLAMP, A NEW LEAK WAS DETECTED ABOUT 2000 FEET FROM THE REPAIR. THE PIPELINE WAS SHUT DOWN UNTIL A DECISION CAN BE MADE ON A PLAN FORWARD.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: CORROSION — INTERNAL.

PHMSA indexed costs: $298,327 reported total cost, $176,863.901 in 1984 dollars, $347,192.137 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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