NORTHWEST NATURAL GAS CO

gas_distribution Incident — HILLSBORO, OR

Incident Information

Report Date
OperatorNORTHWEST NATURAL GAS CO
Commodity—
Pipeline Typegas_distribution

Location

CityHILLSBORO
StateOR
CountyWASHINGTON
Coordinates45.51289, -122.97702

Cause

CauseOTHER OUTSIDE FORCE DAMAGE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

Property Damage
Lost Commodity
Public/Private Damage
Emergency Response
Environmental Remediation
Other Costs

Location Map

Incident Narrative

AT APPROXIMATELY 11:39AM ON NOVEMBER 6, 2011 NW NATURAL WAS NOTIFIED OF A HOUSE FIRE AT 763 SE HIGH ST. IN HILLSBORO, OREGON. NWN FIRST RESPONDER ARRIVED ON SITE AT ABOUT 12:08PM TO FIND THE FIRE DEPARTMENT ON SITE AND WORKING ON CONTAINMENT. FIVE PEOPLE HAD SELF-EVACUATED DUE TO THE FIRE. ACCESS TO METER AND REGULATOR, WHICH WERE IN THE GARAGE, WAS DENIED UNTIL FIRE DEPARTMENT EXTINGUISHED FLAMES AND HOTSPOTS. UPON ACCESS TO METER AND REGULATOR, NW NATURAL'S FIRST RESPONDER FOUND A GAS LEAK AT THE RISER VALVE CORE BECAUSE PACKING GREASE BURNED OUT AT CORE FROM TEMPERATURES GENERATED BY THE FIRE. THE GAS WAS CONTROLLED AND REPAIRS WERE COMPLETED BY APPROXIMATELY 3:51PM. NW NATURAL DOES NOT HAVE A REASON TO BELIEVE THAT NATURAL GAS WAS INVOLVED IN THE CAUSE OF THE FIRE, HOWEVER, THE FIRE DEPARTMENT'S FINAL REPORT LISTS THE CAUSE OF FIRE AS UNDETERMINED.

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.

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