NORTHERN NATURAL GAS CO
gas_transmission Incident —
Incident Information
| Report Date | — |
| Operator | NORTHERN NATURAL GAS CO |
| Commodity | — |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 42.04709, -94.04601 |
Cause
| Cause | NATURAL FORCE DAMAGE |
| 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 0009 THE OCC RECEIVED A CALL FROM LOCAL POLICE THAT A NOISE WAS HEARD AT THE OGDEN COMPRESSOR STATION THAT SOUNDED LIKE A JET. TECHNICIANS ARRIVED AND COULD HEAR VENTING GAS AND WENT TO HMI TO SEE WHERE THE GAS COULD BE VENTING FROM. ONCE DETECTED, TECHNICIANS WENT TO THE REGULATOR LOCATION AND STARTED TO BRING PRESSURE DOWN BY CLOSING THE ISOLATION VALVE UPSTREAM OF THE REGULATOR. ONCE THE PRESSURE CAME DOWN, THE RELIEF VALVE SET AND THE GAS WAS NO LONGER VENTING. IT WAS FOUND THAT THE CIRCUIT CARD THAT CONTROLS THE READINGS FOR THE REGULATOR WAS DAMAGED BY A LIGHTNING STRIKE. THE CARD WAS REPLACED, AND THE SYSTEM TESTED AND RETURNED TO NORMAL OPERATION.
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.