SUNOCO PARTNERS MARKETING & TERMINALS LP

Incident Narrative

AT APPROXIMATELY 10:00 ON 1/8/2018 OPERATION PERSONNEL DISCOVERED A RELEASE OF APPROXIMATELY 1/2 BBL CRUDE OIL FROM THE SUMP AT THE MARSHLAND MANIFOLD TO SECONDARY CONTAINMENT. THE SUMP PUMP WAS MANUALLY STARTED TO STOP THE OVERFLOW CONDITION. MANAGEMENT AND OSRO WERE NOTIFIED AND DISPATCHED. ALL FREE CRUDE OIL WAS RECOVERED AND THE SUMP WAS PUMPED OUT AND ISOLATED FOR INVESTIGATION INTO THE CAUSE OF THE OVERFLOW. IT WAS DETERMINED THAT THE SUMP PUMP DID NOT AUTOMATICALLY START AS PROGRAMMED BECAUSE OF A FAULTY FLOW SWITCH ON THE DISCHARGE SIDE WHICH ACTS AS A PROTECTIVE DEVICE FOR THE SUMP SO THAT IT DOES NOT RUN DRY AND INCUR PUMP DAMAGE. IT WAS DISCOVERED THAT THE SWITCH HAD BAD ELECTRICAL CONNECTIONS TO THE BASE. THE SWITCH AND BASE WERE REPLACED. THE SUMP IS EQUIPPED WITH INDEPENDENT HI AND HI HI LEVEL ALARMS WHICH WERE FUNCTIONING PROPERLY AND WERE SEEN BY LOCAL CONTROL CENTER. NO ADDITIONAL ACTION WAS TAKEN BY CONTROLLER BECAUSE RELEASE WAS IDENTIFIED AND SUMP PUMP STARTED MANUALLY AND LEVEL ALARMS CLEARED. AUTOMATIC PROGRAMMING LOGIC FOR THE SUMP WAS SUBSEQUENTLY CONFIGURED TO SHUTDOWN MAINLINE PUMP UNITS ASSOCIATED WITH THE MANIFOLD IF A PROBLEM WITH THE SUMP IS DETECTED WHICH WILL PREVENT FUTURE RECURRENCE OF SIMILAR RELEASE.