ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC
gas_transmission Incident — — January 21, 2022
Incident Information
| Incident Date | January 21, 2022 |
| Operator | ENABLE OKLAHOMA INTRASTATE TRANSMISSION, LLC |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 36.42927, -95.70107 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $9,500 |
| Emergency Response | $500 |
| Other Costs | $0 |
Location Map
Incident Narrative
ON 01/21/2022 A RELIEF VALVE WAS DISCOVERED VENTING WHEN A ENERGY TRANSFER EMPLOYEE ARRIVED AT THE NORTHEAST POWER STATION IN OOLOGAH, OKLAHOMA. GAUGES WERE INSTALLED TO VERIFY PRESSURES. THE RELIEF VALVE WAS IMMEDIATELY CLOSED AND UPON INVESTIGATION IT WAS DETERMINED THAT A REPORTABLE RELEASE OF NATURAL GAS HAD OCCURRED. THE NRC WAS NOTIFIED (NRC# 1327084, 1327011) AND AN INVESTIGATION WAS INITIATED TO DETERMINE CAUSE. IT WAS DETERMINED THAT REGULATOR MALFUNCTION HAD OCCURRED DUE TO ICE BUILDUP ON THE REGULATOR. THE REGULATOR WAS DE-ICED AND THE RELIEF VALVE WAS REBUILT BEFORE BEING PLACED BACK INTO SERVICE. EXTREME TEMPERATURES OF 16 DEGREES OCCURED ON THS DAY AND CONTRIBUTED TO ICING OF THE REGULATOR, AND ULTIMATELY CAUSED THE RELEASE.
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.