PLAINS MARKETING, L.P.

hazardous_liquid Incident — — November 21, 2012

Incident Information

Incident DateNovember 21, 2012
OperatorPLAINS MARKETING, L.P.
CommodityCRUDE OIL
Pipeline Typehazardous_liquid

Location

State
Coordinates31.01183, -102.01582

Cause

CauseINCORRECT OPERATION
SubcauseDAMAGE BY OPERATOR OR OPERATOR'S CONTRACTOR NOT RELATED TO EXCAVATION AND NOT DUE TO MOTORIZED VEHICLE/EQUIPMENT DAMAGE

Casualties

Fatalities0
Injuries0

Costs

Property Damage$12,200
Emergency Response$7,000
Other Costs$0

Location Map

Incident Narrative

APPROXIMATELY 10 BBLS. OF CRUDE OIL WERE RELEASED TO THE GROUND DUE TO THE RUPTURE OF A DIAPHRAGM IN A BACK PRESSURE VALVE. A ROOT CAUSE ANALYSIS HAS DETERMINED THE ROOT CAUSE OF THIS INCIDENT TO BE THE CONTROLLER CLOSING THE WRONG VALVE. THE CLOSING OF THIS VALVE ISOLATED THE INCOMING HEADER FROM THE STORAGE TANK(S) WHICH CAUSED THE PRESSURE IN THE HEADER TO INCREASE TO THE POINT THAT IT CAUSED THE DIAPHRAGM OF THE BACKPRESSURE VALVE TO RUPTURE. THE RELEASE WAS QUICKLY ISOLATED BY STATION PERSONNEL. THE BACK PRESSURE VALVE WAS REPAIRED AND OPERATIONS WERE RETURNED TO NORMAL. OPERATING PROCEDURES HAVE BEEN REVISED TO PREVENT REOCCURRENCE OF THIS INCIDENT. *SUPPLEMENTAL HAS BEEN SUBMITTED DUE TO AN INCOMPLETE NARRATIVE. THE NARRATIVE ABOVE IS COMPLETE.

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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