ANR PIPELINE CO
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | ANR PIPELINE CO |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 41.62160, -88.57943 |
Cause
| Cause | INCORRECT OPERATION |
| 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 4:20AM CT ON SEPTEMBER 2, 2017, THE AREA MANAGER RECEIVED A CALL FROM A NEIGHBORING RESIDENT THAT GAS WAS VENTING FROM THE COMPRESSOR STATION. PERSONNEL WERE DISPATCHED TO INVESTIGATE. SHORTLY AFTER 4:29AM, FIELD PERSONNEL IDENTIFIED TWO VALVES INCORRECTLY POSITIONED FROM A PREVIOUS OPERATION. AFTER THESE VALVES WERE CORRECTLY POSITIONED, THE RELIEF VALVES STOPPED VENTING. IT WAS DETERMINED THAT THE 6"" RELIEF VALVES VENTED INTERMITTENTLY (DUE TO PRESSURE INCREASING AND DECREASING ABOVE AND BELOW THE SET POINT) FOR ABOUT 31 MINUTES WHEN THE PRESSURE IN THE PIPELINE REACHED 850 PSIG. THE EVENT MET THE DEFINITION OF INCIDENT BASED ON AN UNINTENDED GAS RELEASE EXCEEDING 3MMCF.
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.