EXPLORER PIPELINE CO

Incident Narrative

ON APRIL 3, 2020 AT APPROXIMATELY 16:37 A LANDOWNER CALLED EXPLORER PIPELINE TO REPORT A PETROLEUM PRODUCT SMELL. AT 17:17 EXPLORER PIPELINE PERSONNEL ARRIVED AT THE LOCATION AND DISCOVERED A POTENTIAL RELEASE OF NATURAL GASOLINE/DILUENT AND MADE THE APPROPRIATE RESPONSE, AND INTERNAL AND EXTERNAL NOTIFICATIONS. THE PIPELINE WAS ALREADY DOWN AND HAD BEEN UNDER A SCHEDULE SHUTDOWN SINCE 07:32 ON APRIL 3, 2020. AN OIL SPILL REMOVAL ORGANIZATION (OSRO) AND A QUALIFIED PIPELINE MAINTENANCE CONTRACTOR ARRIVED SHORTLY AFTER EXPLORER PIPELINE ARRIVED AT 17:17 ON APRIL 3, 2020 TO RESPOND TO THE SUSPECTED RELEASE. WHEN THE PIPELINE WAS EXPOSED THE SOURCE OF THE RELEASE WAS INDICATED TO BE A 4 INCH AREA ASSOCIATED WITH THE 28-INCH DSAW PIPE SEAM. A PLIDCO LEAK CLAMP WAS INSTALLED AND WELDED IN PLACE. NDT TESTING WAS CONDUCTED ON THE ENTIRE PIPE JOINT. THE PIPE WAS REMOVED, AND TRANSPORTED TO A THIRD-PARTY FIRM FOR METALLURGICAL TESTING. NRC NOTIFICATION NUMBER 1274780 WAS PROVIDED AT 17:59 ON APRIL 3, 2020 AND THE 48-HOUR FOLLOW UP NRC NOTIFICATION NUMBER 1274861 WAS PROVIDED AT 16:47 ON APRIL 5, 2020. PIPELINE SCHEDULED DOWN ON 4.03.2020 AT 07:32 NOTIFICATION FROM LANDOWNER ON 4.03.2020 AT 16:37 THE PIPE SEGMENT HAS BEEN REPLACED, AND THE METALLURGICAL REPORT WAS SUBMITTED TO PHMSA.