TRANSCONTINENTAL GAS PIPE LINE COMPANY
gas_transmission Incident — — October 2, 2024
Incident Information
| Incident Date | October 2, 2024 |
| Operator | TRANSCONTINENTAL GAS PIPE LINE COMPANY |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 39.78985, -75.38782 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | NON-THREADED CONNECTION FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $391,833 |
| Emergency Response | $11,725 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON 10/2 OPERATIONS NOTICED A NATURAL GAS ODOR WHILE DOING VALVE MAINTENANCE AT THE PROSPECTOR VALVE SITE ON THE MARCUS HK WOODBURY A (LINE MHWDA-T-T-T). OPERATIONS DETECTED A LEAK NEAR THE BURIED VALVE J353 AND, DUE TO THE DEPTH, REQUIRED ASSISTANCE TO EXCAVATE. ON 10/3 THEY WERE ABLE TO HAND EXCAVATE THE AREA ENOUGH TO VISUALLY INSPECT THE VALVE. A LEAK ON A 12"" VALVE WAS FOUND BASED OFF BUBBLES WERE COMING OUT OF THE BOLTED CONNECTION BETWEEN THE VALVE BONNET AND BODY. ON 10/5, SEGMENT WAS ISOLATED AND CUSTOMER WAS UTILIZED TO DRAW DOWN PRESSURE TO 300 PSI PRIOR TO RECOMPRESSING REMAINING PRODUCT DOWN TO 25 PSI, WHICH WAS THEN VENTED TO ATMOSPHERE THROUGH A CHARCOAL FILTER. VALVE WAS CUT OUT OF THE LINE AND REPLACED WITH STRAIGHT PIPE. CAUSE OF THE LEAK WAS DETERMINED TO BE A WORN O-RING SEAL IN THE BONNET OF THE VALVE."
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.