SOUTHERN NATURAL GAS CO
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | SOUTHERN NATURAL GAS CO |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 29.96620, -91.30760 |
Cause
| Cause | OTHER INCIDENT CAUSE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
AT 2:10 PM ON APRIL 9, 2015, A NATURAL GAS LEAK WAS IDENTIFIED BY COMPANY EMPLOYEES IN THE PIPELINE CANAL OF THE SNG 10-INCH BAYOU POSTILLION LINE, LOCATED IN ST. MARY PARISH, LOUISIANA. THE LEAK WAS CONFIRMED AT 10:40 AM ON 4/10/15, BY DEPRESSURIZING LINE AND THE SUBSIDENCE OF BUBBLES. MAY 8, 2015: AN ULTRASONIC TEST WAS PERFORMED BY THE DIVE CREW TO DETERMINE IF THERE WAS SIGNIFICANT WALL LOSS ON THE PIPE. THE UT READINGS DID NOT INDICATE SIGNIFICANT WALL LOSS. THE DIVERS WERE ABLE TO DETERMINE THE LEAK LOCATION AT THE 7 O'CLOCK POSITION. THE LEAK WAS A PINHOLE LEAK MEASURING NO MORE THAN 1/32-INCHES. REPAIRS WERE MADE AND COMPLETED BY INSTALLING A CLAMP OVER THE AREA OF THE LEAK. THE LINE HAS BEEN RETURNED TO SERVICE.
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.