THUMS LONG BEACH CO
gas_transmission Incident — — August 6, 2010
Incident Information
| Incident Date | August 6, 2010 |
| Operator | THUMS LONG BEACH CO |
| Commodity | OTHER GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 33.75860, -118.18190 |
Cause
| Cause | EXCAVATION DAMAGE |
| Subcause | EXCAVATION DAMAGE BY OPERATOR'S CONTRACTOR (SECOND PARTY) |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $75,000 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
CONTRACT WORK CREW WAS IN THE PROCESS OF BREAKING OUT THE CONCRETE AROUND THE GJ5 LINE IN PREPARATION TO CUT AND REPAIR OF THE GJ5 LINE. THE PIPELINES WERE ENCASED IN CONCRETE IN THE WORK AREA. THE CONSTRUCTION CREW WAS USING A JACK HAMMER TO EXPOSE GJ5 AND PUNCTURED GJ4. THE GJ 4 (12-IN PIPE) AND GJ5 (14-IN PIPE) ARE APPROXIMATELY 20-IN C/L TO C/L (APPROXIMATELY 6-IN APART EDGE PIPE TO EDGE OF PIPE) IN THE WORK AREA. GJ4 WAS AN ACTIVE GAS LINE AT THE TIME OF INCIDENT. GJ4 WAS SHUT DOWN AND BLED OFF IMMEDIATELY. GAS WAS SWITCHED TO THE GJ2 PIPELINE. JACK HAMMER BEAD WAS LEFT IN THE PUNCTURE. NO GAS IGNITION OR HUMAN INJURY OCCURRED DURING THIS INCIDENT. ESTIMATED VOLUME OF GAS RELEASED UNINTENTIONALLY IS 0.098 MCF (ENTRY NOT ACCEPTED IN PART A) DAMAGED SECTION REPLACED ON NOVEMBER 23, 2010 RESEARCH TO IDENTIFY COATING COMPATIBLE WITH THE ORIGINAL CONCRETE MASTIC COATING COATING AND INSPECTION COMPLETED ON APRIL 11, 2011 BACKFILL AND CONCRETE ENCASEMENT COMPLETED ON JUNE 26, 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.