SOUTHERN NATURAL GAS CO
gas_transmission Incident — — October 8, 2016
Incident Information
| Incident Date | October 8, 2016 |
| Operator | SOUTHERN NATURAL GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 32.90905, -81.96592 |
Cause
| Cause | MATERIAL FAILURE OF PIPE OR WELD |
| Subcause | ENVIRONMENTAL CRACKING-RELATED |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $125,000 |
| Emergency Response | $400 |
| Other Costs | $0 |
Location Map
Incident Narrative
"10/08/2016; 2:06 PM EDST; SNG CONFIRMED A FAILURE HAD OCCURRED ON THE SNG 20-INCH WRENS SAVANNAH 2ND LOOP LINE AT MILEPOST 35 AND CHAIN STATION 9+20. SNG EMPLOYEES ISOLATED THE AFFECTED VALVE SECTION WITH THE UPSTREAM AND DOWNSTREAM MAIN LINE VALVES. PIPE MATERIAL WAS COLLECTED AND SHIPPED FOR LAB ANALYSIS. THE ANALYSIS RESULTS WILL SHOW THE CAUSE OF THE FAILURE TO LIKELY BE STRESS CORROSION CRACKING. THE PIPELINE WAS REPAIRED AND RETURNED TO A DETERMINED LOWER OPERATING PRESSURE, AGREED UPON BY PHMSA, ON 10/17/2016. SNG IS DEVELOPING PLANS TO PRESSURE TEST THE AFFECTED SEGMENT. SNG IS ALSO DEVELOPING PLANS TO INSPECT THE AFFECTED SEGMENT WITH ILI EMAT TOOL."
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.