WILLIAMS GAS PIPELINE - TRANSCO
gas_transmission Incident — — June 21, 2010
Incident Information
| Incident Date | June 21, 2010 |
| Operator | WILLIAMS GAS PIPELINE - TRANSCO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 28.46611, -95.72806 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $10,000 |
| Emergency Response | $90,000 |
| Other Costs | $0 |
Location Map
Incident Narrative
FACTUAL INFORMATION LEAK WAS REPORTED TO OPERATOR AT 8:28 A.M. JUNE 21, 2010. IT WAS REPORTED TO HIM BY DISTRICT TEAM IN ROUTE TO PLATFORM. THE LEAK SOURCE WAS FOUND TO BE FROM A GREASE FITTING ON A 4"" VALVE IN SSTI OF STUB OF SUB SEA TIE-IN ASSEMBLY THAT WAS LEFT IN PLACE AFTER THE PIPELINE WAS PREVIOUSLY ABANDONED. THERE WAS NO SHEEN ASSOCIATED WITH THE LEAK. THE SSTI IS CONNECTED TO WILLIAMS 30"" LINE THAT RUNS FROM BA 538 TO SHORE LINE. NOTIFICATIONS OF THE LEAK WERE MADE TO WGP MANAGEMENT, NRC (NO. 944879 WAS ASSIGNED), COAST GUARD, AND MMS. WGP EMPLOYEES CONTRACTED A DIVING COMPANY, THAT REPAIRED THE LEAK BY INSTALLING BLIND FLANGE BETWEEN LEAKING PLUG AND 30"" PIPELINE ON JUNE 24TH, 2010. ROOT CAUSE ANALYSIS WAS PERFORMED & ATTACHED.
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.