WILLIAMS GAS PIPELINE - TRANSCO
gas_transmission Incident — — October 30, 2011
Incident Information
| Incident Date | October 30, 2011 |
| Operator | WILLIAMS GAS PIPELINE - TRANSCO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 29.14510, -90.89953 |
Cause
| Cause | CORROSION FAILURE |
| Subcause | INTERNAL CORROSION |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $650,000 |
| Emergency Response | $30,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
ON THE EVENING OF OCTOBER 30TH, WILLIAMS RECEIVED A CALL FROM THE USCG STATING THAT THERE WERE BUBBLES SEEN COMING FROM COORDINATES 90 53.92N ' 29 08.750W. THE TRANSCO DISTRICT MANAGER DETERMINED THAT IT WAS SAFER TO WAIT UNTIL MORNING BEFORE SENDING A CREW OFFSHORE. AT THE TIME OF THE LEAK, TRANSCO COULD NOT VERIFY WHETHER IT WAS THEIR LINE LEAKING OR NOT. WHEN CREWS ARRIVED AT THE LEAK SITE, A DETERMINATION WAS MADE THAT IT WAS IN FACT TRANSCO'S PIPELINE. THE VALVES WERE CLOSED, THE LINE WAS BLOWN DOWN, AND A CLAMP WAS INSTALLED. THE LEAK WAS DETERMINED TO BE A PINHOLE LEAK AT THE 6 O'CLOCK POSITION ON THE GIRTH WELD. THE PIPELINE WAS RESTORED TO SERVICE ON NOVEMBER 8, 2011.
About This Pipeline Incident
Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.