WILLIAMS MLP OPERATING, LLC
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | WILLIAMS MLP OPERATING, LLC |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 32.23613, -93.66017 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | — |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | — |
| Lost Commodity | — |
| Public/Private Damage | — |
| Emergency Response | — |
| Environmental Remediation | — |
| Other Costs | — |
Location Map
Incident Narrative
THERE WAS A POWER OUTAGE THAT CAUSED THE COMPRESSOR STATION TO STOP PROCESSING GAS AND WHICH CAUSED AN INCREASE IN PRESSURE THAT CAUSED THE RELIEF VALVE TO OPEN. OPERATIONS SUPERVISOR AND ANOTHER OPERATOR RESPONDED TO PSV RELIEF IN WHICH VALVE WAS ACTIVELY RELEASING BUT RELIEVING PRESSURE WAS LESS THAN SET PRESSURE OF DEVICE. PSV RELIEF AT 1310 PSIG COMPARED TO SET PRESSURE OF 1341 PSIG. 3RD PARTY PSV TEST COMPANY, PATRIOT, IS ONSITE TO TEST DEVICE TO SEE IF SET POINT ADJUSTMENT OR OTHER ISSUES OF THE VALVE ARE FOUND. INCIDENT IS AN EQUIPMENT FAILURE OF THE PSV. RELIEF VALVES ARE POSSIBLE TO OPEN WITH 3% OF THE SET POINT AND IS WITHIN THE DESIGN WHEN RELEASE OCCURRED.
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.