ENBRIDGE ENERGY, LIMITED PARTNERSHIP

Incident Narrative

ON MARCH 14 AT APPROXIMATELY 10:45 AM, ON SITE PERSONNEL AT THE CLEARBROOK TERMINAL NOTICED APPROXIMATELY 10 GALLONS OF CRUDE OIL ON THE GROUND NEAR INCOMING LINES 1, 2 AND 3. THE GAUGER IMMEDIATELY NOTIFIED THE EDMONTON CONTROL CENTER AND ALL THREE LINES WERE SHUT DOWN. THE TERMINAL SUPERVISOR AND ON CALL MANGER WERE NOTIFIED. THE BEMIDJI PIPELINE MAINTENANCE CREW WAS DISPATCHED, PERFORMED A ONE-CALL AND BEGAN INITIAL CLEANUP AT APPROXIMATELY 12:15 PM. THE TERMINAL SUPERVISOR ARRIVED ON SITE AT 1:30 PM AND ANALYZED THE CURRENT SITUATION WITH THE ON CALL MANGER. IT WAS DETERMINED THAT THE NRC NOTIFICATION REQUIREMENT WOULD BE MET DUE TO THE NEED FOR EXPLORATORY EXCAVATION TO DETERMINE THE SOURCE OF THE OIL. CONTRACTORS WITH HYDROVAC EQUIPMENT ARRIVED ONSITE AT APPROXIMATELY 1:50 PM TO BEGIN EXPLORATORY EXCAVATION. AT 4:00 PM WHEN THE LEAK SOURCE WAS DETERMINED TO BE THE BLOCK AND BLEED PIPING ON 2-CSV-22, LINES 1 AND 3 WERE CLEARED FOR RESTART. THE 1/2 INCH PIPING WAS BENT, AND HAD BEEN BROKEN OFF FROM THE ELBOW AT THE HORIZONTAL FACE. IT WAS DISCOVERED THAT FROST HAD PENETRATED OVER THE ENTIRE LENGTH OF THE PIPING. THE 1/2 INCH PIPING WAS REPLACED AND LINE 2 WAS PUT BACK INTO SERVICE LATER THAT SAME EVENING. APPROXIMATELY 125 CUBIC YARDS OF CONTAMINATED SOIL WAS DISPOSED OF AT AN APPROVED SITE.