TRANSCONTINENTAL GAS PIPE LINE COMPANY
gas_transmission Incident — — October 23, 2019
Incident Information
| Incident Date | October 23, 2019 |
| Operator | TRANSCONTINENTAL GAS PIPE LINE COMPANY |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 39.87342, -75.74194 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | ORIGINAL MANUFACTURING-RELATED (NOT GIRTH WELD OR OTHER WELDS FORMED IN THE FIELD) |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $65,000 |
| Emergency Response | $150 |
| Other Costs | $0 |
Location Map
Incident Narrative
"DURING ANOMALY INVESTIGATION OF FEATURE ID 1160 (DPLL A-4I_156_2019) THE FINDING REVEALED POSSIBLE LACK OF FUSION IN THE LONG SEAM CREATING A SMALL THROUGH WALL DEFECT LOCATED AT 11:30 POSITION ON THE DP&L LATERAL LOCATED AT APPROXIMATE MP 9.78. THE DEFECT PRODUCED A LOSS OF CONTAINMENT (GAS LEAK). THE REPAIRS WERE COMPLETED ON OCTOBER 26, 2019 DURING THE INSPECTION OF THE PIPE, (6) ID CONNECTED LACK OF FUSION INDICATIONS WERE FOUND IN THE INSPECTION AREA WITH A MAXIMUM DEPTH OF 0.192'-75.6% WALL LOSS. ALSO, IN THE INSPECTION AREA, (4) MID-WALL INCLUSIONS WERE FOUND WITH A MAXIMUM HEIGHT OF 0.168'-66.1% WALL LOSS. IN THE AREA OF MID-WALL INCLUSION #4 (FID #1160), A PINHOLE LEAK WAS FOUND WITH A SOAPY SOLUTION AFTER GAS WAS DETECTED DURING THE INSPECTION. A MAGNETIC PARTICLE INSPECTION WAS PERFORMED REVEALING NO RELEVANT INDICATIONS. PREDICTED ILI TOOL DATA AND ACTUAL LOCATION OF ANOMALY WERE FOUND TO BE IN THE SAME LOCATION. PER WILLIAMS PROCEDURES, A PIPE REPLACEMENT WAS PERFORMED TO COMPLETE THE MITIGATION FOR THIS DIG SITE. MAGNETIC PARTICLE, PAUT AND STRAIGHT BEAM ULTRASOUND INSPECTIONS WERE PERFORMED AT THE UPSTREAM AND DOWNSTREAM TIE-IN LOCATIONS FINDING NO RELEVANT INDICATIONS."
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.