PHILLIPS 66 PIPELINE LLC

Incident Narrative

AT 23:13 HRS. ON 02/10/2019, THE P66 CONTROL CENTER IN BARTLESVILLE, OK (BCC) RECEIVED A SUMP LEVEL HIGH ALARM AT WEEMS STATION ON THE WT-10 CRUDE SYSTEM. FIELD PERSONNEL WERE CALLED OUT TO CHECK THE STATION. AT 00:20 HRS. ON 02/11/2019, THE BCC RECEIVED A SUMP LEVEL HIGH HIGH ALARM, WHILE THE FIELD PERSONNEL WERE STILL EN ROUTE TO THE STATION. WHEN THE FIELD ARRIVED AT APPROXIMATELY 01:00 HOURS, THEY CONFIRMED A SEAL FAILURE ON UNIT 3 AND THE UNIT 3 PUMP CATCH BASIN HAD OVERFILLED. THE PUMP WAS IMMEDIATELY ISOLATED TO STOP THE SEAL LEAK INTO THE PUMP CATCH BASIN. THE AMOUNT OF CRUDE OIL THAT OVERFLOWED THE CATCH BASIN TO THE GROUND WAS ESTIMATED TO BE 1.76 BARRELS. THE CAUSE OF THIS SPILL WAS THE UNIT 3 PUMP CATCH BASIN WAS NOT PROPERLY DESIGNED/INSTALLED. THE DRAIN HOLE FOR THE BASIN IS ON THE WEST END, HOWEVER, THERE IS A SLIGHT SLOPE TO THE EAST. SO THE BASIN CAN OVERFLOW ON THE EAST END AND NOT ALLOW FULL DRAINING ON THE WEST END DRAIN. THEREFORE, THE CATCH BASIN WILL BE MODIFIED TO IMPROVE THE CAPABILITY TO CONTAIN AND FULLY DRAIN A SEAL FAILURE.