BUCKEYE PARTNERS, LP

Incident Narrative

ON 10-21-2015 AT 09:50, THE LIMA STATION OPERATOR NOTICED A STAINED AREA EAST OF THE TANK FILL MANIFOLD AT BUCKEYES LIMA STATION. THE AREA WAS LOCATED ABOVE A LINE THAT TIES INTO THE STATION RELIEF SYSTEM, ALL INCOMING AND OUTGOING LINES AT LIMA STATION WERE SHUT DOWN TO FURTHER INVESTIGATE THE CAUSE OF THE STAIN. THE VOLUME OF THE RELEASE IS ESTIMATED TO BE APPROXIMATELY 10 GALLONS, ALL OF WHICH WAS CONTAINED WITHIN BUCKEYE PROPERTY. EXCAVATION WAS CONDUCTED AND AN 8-INCH MAINLINE RELIEF LINE WAS FOUND TO HAVE A PINHOLE. A 24 INCH TEMPORARY PLIDCO CLAMP WAS INSTALLED OVER THE PINHOLE LEAK LOCATION, WHILE PREPARING FOR INSTALLATION, A SECOND PINHOLE WAS DISCOVERED 18 INCHES AWAY, CAUSING A SECOND CLAMP TO BE INSTALLED ON THE SECOND LOCATION. THIS EXCAVATION WILL BE LEFT OPEN AND MONITORED DAILY WHILE A PERMANENT REPAIR PLAN IS BEING DEVELOPED. UPDATE 2/16/2018 THE PIPE SECTION WAS SENT FOR METALLURGICAL ANALYSIS TO DETERMINE THE CAUSE OF THE LEAK. THE RESULTS OF THE METALLURGICAL ANALYSIS INDICATE THAT THE CAUSE OF THE LEAKS WAS INTERNAL PITTING CORROSION. BASED ON THE INFORMATION AVAILABLE, EITHER OXYGEN CORROSION OR MICROBIOLOGICALLY INFLUENCED CORROSION LIKELY PLAYED A ROLE IN THE CORROSION.