COLONIAL PIPELINE CO

Incident Narrative

AT 07:38AM ON APRIL 27, 2015, A SR. INSPECTOR AT GREENSBORO JUNCTION DISCOVERED GASOLINE LEAKING FROM A FIRE FOAM CONNECTION VALVE ON TANK 817. THE SR. INSPECTOR IMMEDIATELY NOTIFIED LOCAL OPERATIONS TO COMMENCE EMPTYING OF TANK 817, AND THE PROPER INTERNAL NOTIFICATIONS WERE MADE BETWEEN 07:45 AND 08:15AM. DRIP PANS WERE DEPLOYED TO CONTAIN LEAKING PRODUCT UNTIL TANK 817 WAS EMPTIED AT 08:20 PM; FINAL VOLUME OF COLLECTED PRODUCT VIA DRIP PAN WAS 18 GALLONS (SEE INTENTIONAL RELEASE VOLUME). AN ONSITE CONTRACT CREW BEGAN EXPLORATORY DIGGING/CLEAN UP AT 09:00AM WHICH COMMENCED UNTIL MID-DAY. TANK 817 WAS EMPTIED, TANK LINE WAS PULLED, AND THE TANK WAS LOCKED OUT AT 08:20PM AND NOTED AS OUT-OF-SERVICE. APPROXIMATELY 8 CUBIC YARDS OF IMPACTED SOIL WAS EXCAVATED AND PLACED ON PLASTIC. FOUR SOIL SAMPLES WERE COLLECTED FROM THE STOCKPILE AND SENT TO A LABORATORY FOR ANALYSIS. THE TOTAL VOLUME OF GASOLINE RELEASED TO THE SOILS WAS CALCULATED TO BE <1.0 GALLONS. THE IMPACTED SOILS WILL BE TRANSPORTED TO AN APPROVED DISPOSAL FACILITY FOR PROPER TREATMENT/DISPOSAL. NO FURTHER REMEDIAL ACTIVITIES ARE ANTICIPATED. THERE WERE NO IMPACTS TO WATER AND SINCE THE RELEASE WAS LESS THAN 25 GALLONS, NO NOTIFICATIONS WERE REQUIRED. ON MAY 4, 2015, THE FIRE FOAM VALVE NIPPLE WAS EXAMINED AND A CRACK IN THE THREADING WAS DETECTED. THE AFFECTED PORTION OF THE THREADING WAS REMOVED AND NEW THREADING WAS ADDED. A NEW FIRE FOAM CONNECTION VALVE AND UNION WERE INSTALLED AND RECONNECTED TO THE NIPPLE. THE REPAIR IS A PERMANENT REPAIR WITH TESTING SLATED FOR MAY 7, 2015.