ENLINK LIG, LLC

Incident Narrative

ENLINK OPERATOR WAS CALLED OUT FOR POWER AND SCADA COMMUNICATION PROBLEMS, DUE TO A STORM SYSTEM THAT MOVED THROUGH THE AREA. PIPELINE CONTROL INSTRUCTED THE OPERATOR AT 1:45 AM TO START THE ARMISTEAD COMPRESSOR, AFTER INTERNATIONAL PAPER - CAMPTI WENT DOWN. THE OPERATOR STARTED THE COMPRESSOR AT 2:47 AM PRESSURE WAS 463 PSIG (OPERATING PRESSURE WAS 500 PSIG) AND LEFT THE STATION. ON HIS WAY, BACK HOME, THE OPERATOR HEARD A LOUD NOISE AND TURNED HIS VEHICLE AROUND ON HWY 1 AND STARTED BACK TO ARMISTEAD STATION. HE CAME ACROSS A LARGE AREA OF MUD ON HIGHWAY 1 AND FOUND THE POWHATAN 8"" MAINLINE RUPTURED ON THE SIDE OF HWY 1 WITH GAS BLOWING. THE OPERATOR NOTIFIED PIPELINE CONTROL AND HIS SUPERVISOR. THE PIPELINE WAS ISOLATED, BLOWN DOWN AND REPAIRED THE SAME DAY. A 16-FOOT SECTION OF PIPE CONTAINING THE 36-INCH SECTION THAT RUPTURED WAS CUT OUT AND SENT TO ELEMENT MATERIALS TECHNOLOGY. THE INVESTIGATION DID NOT FIND ANY PRESSURES OVER THE 500 PSIG ""OPERATING PRESSURE"" AND PIPELINE CONTROL ACTIONS DID NOT CONTRIBUTE TO THE EVENT. PIPELINE OPERATIONS PERSONNEL ARRIVED AT THE LOCATION AT 3:25 AM, BUT DUE TO SEVERE WEATHER CONDITIONS AT THE TIME OF THE INCIDENT HE WAS NOT ABLE TO MAKE A CONFIRMED DISCOVERY OF THE PIPELINE INVOLVED UNTIL 4:00 AM. THIS SUPPLEMENTAL WAS DONE TO CORRECT THE TIMES IN PART A, ITEM 4 AND 19A.