TC OIL PIPELINE OPERATIONS INC

hazardous_liquid Incident —

Incident Information

Report Date
OperatorTC OIL PIPELINE OPERATIONS INC
Commodity—
Pipeline Typehazardous_liquid

Location

State
Coordinates45.70944, -97.87694

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 16 NOV, 2017, AT 05:34 CST, A PRESSURE DROP WAS EXPERIENCED ON KEYSTONE APPROXIMATELY 17.4 MILES DOWNSTREAM OF LUDDEN PUMP STATION, RESULTING IN THE PIPELINE BEING SHUT DOWN. AT 09:15, TECHNICIANS CONFIRMED OIL ON THE GROUND. AT 10:13 CST, THE NRC WAS CALLED, AND A REPORT GENERATED (1197446) AND DISTRIBUTED AT 10:26. CONTACT WITH PHMSA ACCIDENT INVESTIGATION DIVISION MADE AT 1025; PHMSA ON SITE FROM 17 TO 28 NOV. PIPELINE WAS SUBSEQUENTLY RESTARTED ON 29 NOV AFTER REPLACEMENT OF FAILED SECTION. METALLURGICAL TESTING BEING PERFORMED BY THE NATIONAL TRANSPORTATION SAFETY BOARD; RESULTS PENDING. REGARDING PART D, 1A., THERE ONE BIRD AND ONE RACCOON WERE LOST. 20180315 SUPPLEMENTAL REPORT: UPDATED COMMODITY RELEASED AND RECOVERED, COSTS ASSOCIATED WITH THE ACCIDENT, AND CAUSE OF THE FAILURE (SECOND PARTY DAMAGE) AS DERIVED FROM THE NATIONAL TRANSPORTATION SAFETY BOARD (NTSB) DRAFT METALLURGIC REPORT, AND CONFIRMED BY A MUTUALLY AGREED UPON THIRD PARTY CONTRACTOR, KEIFNER AND ASSOCIATES. 20180810 SUPPLEMENTAL REPORT: FINAL COSTS RECEIVED AND VETTED THROUGH LEADERSHIP ON 20180724, WITH APPROVAL ON 20180801. 20180822 - UPDATED PART G APPARENT CAUSE TO A G5 FROM A G8, AND PART E FOR CONTROLLER INVESTIGATION. 20181109 - UPDATED PART A VOLUME RELEASED TO 6,592 BBLS; VOLUME DERIVED THROUGH PIPE INTEGRITY CALCULATION BASED ON EXACT LOCATION, DEPTH OF COVER, ACTUAL SHUTDOWN TIMES, AND POSITION OF THE RUPTURE.

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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