COLONIAL PIPELINE CO

Incident Narrative

AT APPROXIMATELY 6:40 PM CST, WHILE PERFORMING A YARD CHECK THE B OPERATOR OBSERVED THE STEM SEAL LEAK DETECTION BOX NEAR THE LINE 01 UNIT 3 DISCHARGE VALVE AT HEBERT STATION WAS OVERFLOWING DUE TO IMPROPER DRAINAGE. THE OM AND LEAD OPERATOR WERE ON SITE AND WERE NOTIFIED BY THE B OPERATOR AT APPROX. 6:50 PM CST. SUBSEQUENT INVESTIGATION REVEALED STANDING PRODUCT IN THREE 18 INCH ACCESS WELLS IN THE VICINITY OF THE STEM SEAL LEAK DETECTION BOX. AS A PRECAUTION, A CONTROLLED SHUTDOWN WAS PERFORMED ON LINE 01 AT 7:04 PM CST. THE GCD DIRECTOR OF OPERATIONS WAS NOTIFIED AT 7:12 PM. A TECHNICIAN, LOCAL FIELD PROJECT MANAGER, AND A CONTRACT CREW WERE CALLED IN TO RESPOND. THE CONTRACT CREW AND VACUUM TRUCK ARRIVED ON SITE AT 9:50 PM. CONTRACT CREW POTHOLED THE AREA AND RECOVERED THE PRODUCT AND WATER FROM THE ACCESS WELLS USING A VACUUM TRUCK. THE LINE WAS PRESSURED UP AT 11:00 PM CST AND MONITORED. CLEANUP EFFORTS WERE COMPLETED AT APPROX. 11:40 PM. THE SEAL LEAK DETECTION BOX DRAIN SYSTEM WAS FLUSHED TO ENSURE IT WOULD DRAIN PROPERLY. THE UNIT 3 SUCTION VALVE STEM SEAL WAS LEAKING INTO THE DETECTION BOX AS WERE THE UNIT 3 CHECK VALVE STEM SEALS. INJECTABLE PACKING WAS USED TO REPAIR THE UNIT 3 SUCTION VALVE. CHECK VALVE SEALS ARE TARGETED FOR REPLACEMENT AS SOON AS PRACTICAL. VOLUME OF GASOLINE RECOVERED WAS 12 GALLONS. DISTRICT ENVIRONMENTAL MANAGER, DIRECTOR OF OPERATIONS, AND OPERATIONS MANAGER AGREED NO EXTERNAL AGENCY NOTIFICATIONS WERE REQUIRED BASED ON THE VOLUME AND THE FACT THAT THE RELEASE WAS CONTAINED WITHIN THE FACILITY.