COUNTRYMARK REFINING AND LOGISTICS, LLC

Incident Narrative

ON AUGUST 11TH PIPELINE MAINTENANCE CREWS WERE WORKING ON A SMALL PIPELINE REPLACEMENT ON THE CLAY CITY 6"" MAINLINE. CREWS WERE DITCHING-IN FOR THE REPLACEMENT PARALLEL TO THE EXISTING ACTIVE PIPELINE. AN UNKNOWN INACTIVE INJECTION WAS HIT AS THE EXCAVATOR WAS DITCHING IN THE REPLACEMENT PIPELINE. THIS INJECTION WAS WELDED TO THE ACTIVE MAINLINE AND WAS RIPPED OUT BY THE TRACKHOE. THIS CAUSED THE MAINLINE TO BEGIN LEAKING. THE PIPELINE PUMPS SHUT DOWN IMMEDIATELY ON LOW PRESSURE KILL. ON-SITE PERSONNEL IMMEDIATELY BEGAN EMERGENCY RESPONSE PROCEDURES. THE CONTROL ROOM CLOSED THE UPSTREAM REMOTE-CONTROL VALVE AFTER BEING NOTIFIED OF THE INCIDENT BY MAINTENANCE PERSONNEL. THE DOWNSTREAM MANUAL VALVE WAS CLOSED BY MAINTENANCE PERSONNEL APPROXIMATELY 20 MINUTES AFTER THE ACCIDENT. THE CRUDE OIL WAS CONTAINED ENTIRELY IN THE EXCAVATED DITCH. ON-SITE PERSONNEL BEGAN RECOVERY EFFORTS AND ADDITIONAL RESOURCES WERE CALLED TO HELP WITH CLEANUP EFFORTS. THE PIPELINE REMAINED SHUTDOWN UNTIL THE REPLACEMENT WAS COMPLETED THE FOLLOWING DAY. A ROOT CAUSE ANALYSIS IS IN PROCESS. THE REPORT WILL BE UPDATED WITH THE FINDINGS FORM THE ANALYSIS AFTER COMPLETION. THE ROOT CAUSE ANALYSIS WAS REVIEWED AND ACCEPTED ON SEPTEMBER 28, 2020. THREE ACTION ITEMS WERE IDENTIFIED; REVIEW ILI DATA TO IDENTIFY ANY POSSIBLE TAPS OR APPURTENANCES FOR ALL PIPELINES, SURVEY THE ABANDONED PIPELINE AND INCLUDE ON OUR MAPS, PROVIDE ALIGNMENT SHEETS TO CONSTRUCTION CREWS AS NECESSARY.