GENESIS PIPELINE USA, L.P.

Incident Narrative

ON 2/15/16 SEVERE THUNDERSTORMS CAME THROUGH THE MAGEE, MS AREA AROUND 2:00 PM AS WELL AS MOST OF CENTRAL MISSISSIPPI. THESE SEVERE THUNDERSTORMS KNOCKED OUT POWER AT OUR GWINVILLE & SOSO STATION & MARTINVILLE STATION. AT 2:15 PM OPERATIONS RECEIVED A CALL ABOUT THE POWER AT GWINVILLE STATION AND AN OPERATOR WENT TO GWINVILLE AND RESET THE STATION. HE THEN WENT BY RALEIGH JCT. AND RALEIGH STATION TO CHECK THEM. AT APPROXIMATELY 5:15 OPERATIONS WAS NOTIFIED OF POWER FAILURE AT MARTINVILLE STATION. ON 2/16/16 THE OCC CONTACTED OPERATIONS ABOUT PUMPING RALEIGH STATION AND THEY WERE NOT SEEING ANY FLOW WHEN THEY STARTED THE PUMP. OPERATIONS CHECKED THE STRAINER AT GWINVILLE AND CHECKED THE PIG RECEIVERS AT RALEIGH JCT. TO SEE IF THERE WERE ANY BLOCKAGES. THE PUMPS WERE TRIED EACH TIME THE STRAINER WAS CLEANED AND THE PIGS WERE REMOVED. STILL NO FLOW AT GWINVILLE STATION. AT 11:45 OPERATIONS STARTED LOOKING AT THE EXPOSED PIPE CROSSING TO SEE IF THERE WERE ANY LEAKS VISIBLE. AT 12:05 OPERATIONS MADE IT TO THE SECOND PIPE CROSSING AND FOUND THE TOP OF A 18"" DIAMETER PINE TREE LAYING ON TOP OF THE EXPOSED CREEK CROSSING AND OIL LEAKING OUT. OPERATIONS CONTACTED THEIR SUPERVISOR AND THEN PROCEEDED TO BLOCK-IN THE UPSTREAM AND DOWNSTREAM VALVES AND THEN A TEMPORARY PATCH WAS PUT ON THE PIPE TO STOP THE LEAK. THE EMERGENCY NOTIFICATION CENTER WAS CONTACTED AT 12:15 AND ADVISED OF THE LEAK AND ADVISED TO SEND OSROS AND EQUIPMENT. 12:29 THE SAFETY SUPERVISOR FOR THE DISTRICT WAS CONTACTED. CLEAN-UP CREW SHOWED UP ON SITE AT APPROXIMATELY 15:30 AND BEGIN CLEANUP AND CONTAINMENT ACTIVITIES. PART D, QUESTION 8 SHOWS FIGURES AS OF 2/27/16. COST OF REPAIRS WILL BE UPDATED ON THE NEXT SUPPLEMENTAL REPORT. SUPPLEMENTAL - 4/13/16: EARLIER COST ESTIMATES FOR PART D WERE INITIALLY HIGH HOWEVER, REVISED NUMBER NUMBERS ARE MORE IN LINE WITH NEW ANALYSIS. GENESIS IS STILL WAITING FOR THE RESULTS OF THE ROOT CAUSE INVESTIGATION. FINAL REPORT - 4/25/16: UPDATED ROOT CAUSE INVESTIGATION RESULTS. SUPPLEMENTAL/FINAL REPORT - 9/19/2017: CHANGES TO PART D, QUESTION 9. REMOVED CHECKED BOXES FOR ""INVESTIGATION IDENTIFIED INCORRECT PROCEDURES,"" AND ""INVESTIGATION IDENTIFIED INCORRECT CONTROL ROOM EQUIPMENT OPERATION."" A REVIEW OF THE EVENT SHOWED THAT GIVEN THE SEVERITY OF THE WEATHER EVENT, THE LOSS OF COMMUNICATIONS ASSOCIATED TO THE WEATHER, AND THE UNIQUENESS OF THE PIPELINE ACCIDENT, THE CONTROLLERS USED ALL OF THE AVAILABLE RESOURCES THEY HAD AT THEIR DISPOSAL WITH THE ASSISTANCE OF THE FIELD TO TROUBLESHOOT THE EVENT AS IT TOOK PLACE. AFTER FURTHER REVIEW, THE EVENT DID NOT REQUIRE ADDITIONAL DRUG AND ALCOHOL TESTING OF THE CONTROLLERS DUE TO THEIR ACTIONS. SUPPLEMENTAL/FINAL REPORT - 11/8/2017: PER PHMSA'S DIRECTION, PART A QUESTION 4 WAS CHANGED TO 2/15/2016 14:27 TO REFLECT THE SCADA INFORMATION THAT SHOWS, BASED ON AN INTERNAL INVESTIGATION, THE EARLIEST INDICATION OF A LEAK OR ACCIDENT. PART C QUESTION 3A. WAS CHANGED TO 8IN TO SHOW THE NOMINAL SIZE OF THE PIPE. PART C QUESTION 6 WAS CHANGED TO ""LEAK"" AS THE TYPE OF ACCIDENT INVOLVED AND ""CRACK"" WAS SELECTED FOR THE TYPE OF LEAK.