ENBRIDGE HOLDINGS (GRAY OAK) LLC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENBRIDGE HOLDINGS (GRAY OAK) LLC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates27.83019, -97.20064

Cause

CauseEQUIPMENT FAILURE
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

ON NOVEMBER 7, 2023, AT APPROXIMATELY 10:35 AM CST, OPERATIONS PERSONNEL NOTICED THE SMELL OF CRUDE OIL AT THE GRAY OAK INGLESIDE STATION AND DISCOVERED OIL DRIPPING FROM THE THREADED FITTING OF THE SAMPLE PROBE ON THE EAST METER SKID. THE CONTROL CENTER WAS CONTACTED, AND THE LINE SEGMENT WAS SHUT DOWN. APPROXIMATELY 5 GALLONS OF CRUDE OIL WAS RELEASED. THE RAILROAD COMMISSION OF TEXAS WAS NOTIFIED AT 11:00 AM CST (REPORT # 2973). THE LINE SEGMENT WAS DRAINED, AND THE SAMPLE PROBE WAS REPLACED. ALL CONTAMINATED SOIL WAS REMOVED FROM THE RELEASE SITE AND PROPERLY DISPOSED OF. THE INVESTIGATION DETERMINED THE CAUSE OF THE RELEASE WAS DUE TO A DEFECTIVE THREADED FLANGE. THE FLANGE WAS NOT FULLY THREADED BY THE MANUFACTURER AND THE DEFECT WAS NOT FOUND PRIOR TO INSTALLATION ON NOVEMBER 1, 2023.

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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