CHEVRON PIPE LINE CO

Incident Narrative

AT 23:45 CDT ON 05 APR 10 CSC SCADA INFORMATION INDICATED AN ABNORMALITY IN THE 10' CYPRESS SYSTEM. CSC BEGAN SHUTTING IN THE SYSTEM AND WAS COMPLETED @ 01:57 CDT ON 06 APR 10. AT APPROXIMATELY 23:50 CDT ON 05 APR 10 A 3RD PARTY COMPANY ISSUED A REPORT TO THE NRC REGARDING A POSSIBLE PIPELINE STRIKE DURING DREDGING OPERATIONS. USCG SECTOR NEW ORLEANS CONTACTED MR. WALL INQUIRING POSSIBLE PIPELINES IN THE AREA; MR. DAVE WALL, CHEVRON SHIPPING, CONTACTED THE CPL HES HOTLINE TO RELAY THE INFORMATION @ 03:51 CDT. DUE TO WEATHER CONDITIONS CPL REPRESENTATIVE WAS NOT ABLE TO COMPLETE A FLY OVER UNTIL 08:28 CDT ON 06 APR 10. ONCE THE RELEASE WAS CONFIRMED TO BE A CPL PIPELINE, NOTIFICATION TO NRC WAS MADE AT 11:31 CDT ON 06 APR 10. ON 06 APR 10 THE INVESTIGATION INDICATED A SPUD BARGE DROPPED A LEG ON THE CPL CRUDE PIPELINE. IT WAS DETERMINED THAT A 3RD PARTY CONTRACTOR WAS SCHEDULED TO DREDGE AN ADJACENT CANAL. THE 3RD PARTY CONTRACTOR ARRIVED ON THE ACCIDENT SITE AND DROPPED THE BARGE LEG JUST PRIOR TO MIDNIGHT WHICH PENETRATED THE CPL CRUDE PIPELINE. PRESENTLY, THE ACCIDENT SITE IS ISOLATED AND A VACUUM (NEGATIVE PRESSURE) HAS BEEN PLACED ON THE ISOLATED SECTION SO NO ADDITIONAL CRUDE CAN BE RELEASED. ENVIRONMENTAL REMEDIATION IS IN PROGRESS AND A PIPELINE REPAIR PLAN HAS BEEN DEVELOPED. MAY 12, 2010 SUPPLEMENTAL REPORT ' ON 15 APR 10, THE 3RD PARTY CONTRACTORS SPUD BARGE LEG WAS RAISED OFF OF THE CPL CYPRESS CRUDE 10' AND BARGE WAS REMOVED OFF OF THE SITE. DIVERS INSPECTED THE CONDITION OF THE PIPELINE AND REPORTED THE PIPE WAS PUNCTURED BY THE SPUD LEG. ENGINEERING HAS DEVELOPED A REPAIR PLAN AND THE PLAN WAS SUBMITTED TO PHMSA SOUTHWEST REGION FOR REVIEW. THE PIPELINE REPAIR WAS INITIATED ON 21 APR 10 WHICH REQUIRED SITE PREPARATION BEFORE THE PIPELINE COULD BE RAISED FOR THE PHYSICAL REPAIR. ON 4 MAY 10 THE 10' PIPELINE WAS LIFTED AND A 7'6' SECTION OF THE DAMAGED AREA WAS CUT OUT AND SENT TO THE CPL VENICE WAREHOUSE AND SECURED BY CHEVRON ETC METALLURGIST. TOTAL LENGTH OF PIPE CUT OUT AND REPLACEMENT WAS 80'. THE PHYSICAL REPAIR WAS COMPLETED ON 5 MAY 10. THE NEXT FEW DAYS WERE SPENT JETTING THE PIPELINE BACK INTO PLACE AND RESTORING PROPER COVER. AT PRESENT, THE PIPELINE HAS NOT BEEN RESTORED TO SERVICE. PIPELINE WAS PLACED BY INTO SERVICE 09/11/2010.