PLAINS PIPELINE, L.P.

Incident Narrative

APPROXIMATELY 60 BARRELS OF CRUDE OIL WERE RELEASED WITHIN FACILITY BOUNDARIES FROM MANIFOLD PIPING. A PLAINS EMPLOYEE DISCOVERED THE RELEASE AND IMMEDIATELY NOTIFIED THE CONTROL CENTER, WHO SHUT DOWN THE LINE. THE CAUSE OF THE INCIDENT IS STILL UNDER INVESTIGATION, AND A SUPPLEMENTAL REPORT WILL BE SUBMITTED, PENDING CUT OUT OF THE FAILED SECTION OF PIPE AND THIRD PARTY ANALYSIS. SUPPLEMENTAL NARRATIVE: PRIOR TO THE RELEASE THAT OCCURRED ON 7/12/19, PLAINS IDENTIFIED THAT HENDRICK TANK FARM'S TANK LINES AND MANIFOLD PIPING WERE SUSCEPTIBLE TO INTERNAL CORROSION AND WERE ACTIVELY WORKING ON REMOVING ALL TANKS, TANK LINES, AND MANIFOLD PIPING FROM SERVICE. IMMEDIATELY AFTER THE INCIDENT, THE FAILURE LOCATION WAS CLAMPED ALLOWING PLAINS TO DRAIN DOWN THE REMAINING ACTIVE PIPING THAT WAS OF CONCERN AND DIVERT ALL PRODUCT THROUGH THE NEWER PIPING AT THE STATION. IN ORDER TO PROPERLY INSTALL THE CLAMP, THE EXTERNAL SURFACE OF THE FAILURE LOCATION WAS VISUALLY INSPECTED AND NO COATING DIS-BONDMENT OR EXTERNAL CORROSION WAS OBSERVED. OVER THE NEXT FEW MONTHS, A CONTRACTOR ON SITE WORKED TO REMOVE THE TANK LINES AND MANIFOLD PIPING FROM THE GROUND. DURING THIS PROCESS, THE RECYCLER MISTAKENLY PICKED UP THE FAILURE LOCATION CUTOUT AND SENT IT TO THE CRUSHER/SHREDDER. AFTER OPERATIONS AND INTEGRITY WERE NOTIFIED THAT THE PIPE WOULD NOT BE AVAILABLE FOR A FAILURE ANALYSIS, PLAINS REVIEWED MULTIPLE SOURCES OF INFORMATION SUCH AS EXTERNAL VISUAL EXAMINATION DURING CLAMPING OF THE FAILURE LOCATION, CORROSION COUPON READINGS AND BUG BOTTLE ANALYSIS OF THE INCOMING AND OUTGOING MAINLINES, DOCUMENTATION FROM HISTORICAL EXCAVATIONS OF THIS SAME TANK LINE, AND NON-DESTRUCTIVE TESTING INSPECTION OF A SIMILAR LOCATION ROUGHLY 300 FEET FROM THE FAILURE LOCATION IN ORDER TO DETERMINE THE MOST LIKELY CAUSE OF THE FAILURE. IT HAS BEEN DETERMINED THAT THE FAILURE WAS LIKELY DUE TO INTERNAL CORROSION CAUSED BY A LOW ELEVATION IN THE FACILITY AND MICROBIOLOGICAL INFLUENCE. AS STATED ABOVE, PLAINS HAS INACTIVATED ALL SIMILAR VINTAGE PIPING AND IS CURRENTLY WORKING ON REMOVING THE PIPING FROM THE SITE. IN ADDITION, A PAA LESSONS LEARNED BULLETIN WILL BE DISTRIBUTED AS A WAY TO PROVIDE RE-TRAINING TO ALL PLAINS OPERATIONS PERSONNEL ON HOW TO PROPERLY MARK AND REMOVE CUTOUT LOCATIONS THAT WILL BE SENT INTO A FAILURE ANALYSIS COMPANY.