NATIONAL FUEL GAS SUPPLY CORP
gas_transmission Incident — — November 22, 2018
Incident Information
| Incident Date | November 22, 2018 |
| Operator | NATIONAL FUEL GAS SUPPLY CORP |
| Commodity | NATURAL GAS |
| Pipeline Type | gas_transmission |
Location
| State | |
| Coordinates | 42.67635, -78.94429 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | MALFUNCTION OF CONTROL/RELIEF EQUIPMENT |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $200 |
| Emergency Response | $2,100 |
| Other Costs | $0 |
Location Map
Incident Narrative
NATIONAL FUEL GAS SUPPLY CORPORATION HAS REPORTED A NATURAL GAS INCIDENT AS A RESULT OF AN UNINTENTIONAL RELEASE OF NATURAL GAS ESTIMATED AT GREATER THAN THREE (3) MILLION CUBIC FEET, THAT OCCURRED AT 7700 FERRIER RD. IN THE TOWN OF EVANS, ERIE COUNTY, NY. NATIONAL FUEL CONFIRMED DISCOVERY OF THE INCIDENT ON WEDNESDAY NOVEMBER 28, 2018 AFTER COMPLETING A COMPREHENSIVE FLOW ANALYSIS OF GAS LOST DURING A RELIEF VALVE RELEASE THAT OCCURRED FROM APPROXIMATELY 9:23 PM TO 11:33 PM ON THURSDAY NOVEMBER 22ND, 2018. THE PROBABLE CAUSE OF THE INCIDENT WAS EQUIPMENT FAILURE OF A RESTRICTOR VALVE FOR A RELIEF VALVE CONTROL THAT CAUSED THE DEVICE TO FAIL IN AN OPEN POSITION. THERE WERE NO INJURIES OR PROPERTY DAMAGE. THE UPDATED NRC REPORT NUMBER 1231680.
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.