ENBRIDGE ENERGY, LIMITED PARTNERSHIP

hazardous_liquid Incident —

Incident Information

Report Date
OperatorENBRIDGE ENERGY, LIMITED PARTNERSHIP
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates47.37210, -94.57539

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

ENBRIDGE FIELD LABORERS WORKING ALONG THE RIGHT-OF-WAY REPORTED SEEING EVIDENCE OF OIL ON THE GROUND AROUND A MAINLINE VALVE AT MP-958.33, WHICH IS LOCATED NORTH OF HWY 2 ON THE EAST SIDE OF CASS LAKE. THE LABORERS CONTACTED THEIR SUPERVISOR WHO CONFIRMED THE RELEASE AND MOBILIZED ENBRIDGE RESPONSE. LINES 1 AND 2 IN THIS ROUTE WERE SHUT DOWN AND VALVES ON EITHER SIDE OF THE LOCATION ISOLATED THE SECTION AS A PRECAUTION. THE PIPELINE MAINTENANCE SUPERVISOR, WHO RESPONDED TO THE SITE, CONFIRMED THE VALVE LEAK ON LINE 1 AND ESTIMATED A SMALL AMOUNT OF OIL HAD BEEN RELEASED ON THE GROUND AROUND THE VALVE. ENBRIDGE MAINTENANCE PERSONNEL EXCAVATED, BY HAND, THE SOIL AROUND THE SITE, EVALUATED THE VALVE CONDITION AND CONFIRMED THAT THE VALVE STEM PACKING WAS LEAKING. ENBRIDGE MAINTENANCE PERSONNEL WERE ABLE TO MAKE ON SITE REPAIRS TO THE VALVE STEM PACKING. ESTIMATED VOLUME RELEASED WAS 10 GALLONS. ONCE THE PACKING WAS REPAIRED, THE LINE WAS RESTARTED AT 17:45 PM LOCAL TIME. ALL AFFECTED SOIL HAS BEEN REMOVED AND DISPOSED AT AN APPROPRIATE OFF-SITE FACILITY. THE INCIDENT WAS REPORTED TO THE MN DUTY OFFICER AND THE NATIONAL RESPONSE CENTER. A REPRESENTATIVE FROM MNOPS VISITED TO INSPECT THE SITE.

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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