NORTHERN NATURAL GAS CO
gas_transmission Incident — — September 22, 2018
Incident Information
| Incident Date | September 22, 2018 |
| Operator | NORTHERN NATURAL GAS CO |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 42.68650, -89.64098 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $100 |
| Emergency Response | $500 |
| Other Costs | $0 |
Location Map
Incident Narrative
"ON 9/22/2018, AT APPROXIMATELY 1:30AM, A PLC FAILED ON UNIT #4 AT THE BELLEVILLE COMPRESSOR STATION RESULTING IN A GAS RELEASE. THE FACILITY WAS SECURED AT ~4:30AM. THE ESTIMATED GAS LOSS WAS 3,489 MCF. THE INITIAL CALCULATION HAD AN ERROR AND IT WAS THOUGHT TO BE UNDER THE REPORTING LIMIT. UPON FURTHER REVIEW WHEN IT WAS REALIZED THAT THE REPORTING THRESHOLD WAS EXCEEDED, AN URGENT OCC CALL WAS INITIATED AT 10:55AM WITH MEMBERS FROM THE PLATTEVILLE TEAM, FACILITY PLANNING, AND PIPELINE SAFETY DEPARTMENTS. UPDATE: ON 12/07/2018 THE NRC REPORT NUMBER WAS CORRECTED TO SHOW THE ORIGINAL IN PLACE OF THE 48-HOUR UPDATE."
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.