QUESTAR PIPELINE COMPANY
gas_transmission Incident — — November 27, 2011
Incident Information
| Incident Date | November 27, 2011 |
| Operator | QUESTAR PIPELINE COMPANY |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 41.49168, -110.27543 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | OTHER EQUIPMENT FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $500 |
| Emergency Response | $300 |
| Other Costs | $0 |
Location Map
Incident Narrative
SUPPLEMENTAL BEING FILED TO CLARIFY THE CAUSE OF THE INCIDENT. TUBING FOR A SENSING LINE TO A PRESSURE TRANSDUCER WAS INADEQUATELY SECURED DURING INITIAL INSTALLATION AND BROKE FREE FROM ITS CONNECTION POINT BECAUSE OF PROLONGED VIBRATION FROM NORMAL OPERATION. LOCAL OPERATOR RESPONDED AND ISOLATED THE SENSING LINE VALVES. THE OPERATOR REPAIRED THE TUBING AND REPORTED THE EVENT TO QUESTAR PIPELINE COMPANY'S GAS CONTROL. AFTER GAS LOSS CALCULATIONS WERE MADE IT WAS DETERMINED THAT THIS EVENT MET THE CRITERIA OF AN UNINTENTIONAL RELEASE OF GAS IN EXCESS OF 3 MMSCF AND THE EVENT WAS REPORTED TO THE NRC.
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.