ENBRIDGE ENERGY, LIMITED PARTNERSHIP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENBRIDGE ENERGY, LIMITED PARTNERSHIP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates46.12781, -88.60275

Cause

CauseMATERIAL FAILURE OF PIPE OR WELD
Subcause—

Casualties

Fatalities0
Injuries0

Costs

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

Location Map

Incident Narrative

ON NOVEMBER 11, 2017 AT APPROXIMATELY 10:47 CST AN INTEGRITY DIG CREW WORKING ON LINE 5 DISCOVERED A PINHOLE LEAK WHILE SANDBLASTING. THE PINHOLE LEAK IN THE LONG SEAM WAS ASSOCIATED WITH A PIPE MILL WELD REPAIR. NO OIL REACHED THE GROUND. THE PIPELINE WAS IMMEDIATELY SHUTDOWN. A NOTIFICATION TO THE NRC (# 1197057) WAS MADE WHEN THE INCIDENT WAS DEEMED REPORTABLE AFTER DECIDING TO INSTALL A PLIDCO REPAIR COUPLING WHICH WOULD TRIGGER THE $50,000 THRESHOLD. THE REPAIR WAS MADE AND SITE RESTORED. LINE 5 WAS RESTARTED AT 6:30 CST ON NOVEMBER 12. THE ACTUAL VOLUME RELEASED AT MP 1275.09 WAS 0.00013 GALLONS. THE PHMSA PORTAL DOES NOT RECOGNIZE VOLUMES LESS THAN 0.01 BARRELS THEREFORE THAT IS THE VOLUME ENTERED.

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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