ENTERPRISE CRUDE PIPELINE LLC

Incident Narrative

AT 4:56 PM ON 6/30/2020 AERIAL PATROL REPORTED POTENTIAL CRUDE ON THE ROW. AT APPROXIMATELY 7:45 AM ON 7/1/20, A TECHNICIAN CONFIRMED CRUDE RELEASED ON LID C105, AND PIPELINE WAS IMMEDIATELY SHUT DOWN. AT 9:10 AM, IT WAS ESTIMATED THE AMOUNT OF CRUDE EXCEEDED 5 GALLONS AND THE TRRC WAS NOTIFIED OF THE ACCIDENT. THE PIPELINE WAS EXCAVATED, VISUALLY EXAMINED, AND A CLAMP WAS INSTALLED. THERE WAS NO FREE LIQUID AVAILABLE FOR RECOVERY. IN CONSIDERATION THAT THE COMMODITY WAS BEING TREATED WITH CORROSION INHIBITOR, BIOCIDE AND PARAFFIN SOLVENT, CLEANING PIGS AND CORROSION COUPONS WERE ROUTINELY UTILIZED, AND THE SIX O'CLOCK ORIENTATION OF THE PIN-HOLE LEAK, INTERNAL UNDER-DEPOSIT CORROSION IS A POSSIBLE CAUSE BUT WAS NOT VISUALLY VERIFIED BY CUTTING OPEN THE PIPELINE. TO PREVENT A RECURRENCE, THE FOLLOWING ACTIONS WILL BE IMPLEMENTED: - A MORE AGGRESSIVE CLEANING PIG WILL BE UTILIZED; - THE PIGGING FREQUENCY WILL BE INCREASED; - THE INTERNAL CORROSION PREVENTION CHEMICAL APPLICATION WILL BE CHANGED FROM CONTINUOUSLY INJECTED TO A BATCH TREATMENT DURING PIGGING FORMAT; - CONTINUED MONITORING OF INTERNAL CORROSION RATES UTILIZING WEIGHT LOSS COUPONS; AND - INITIATE ROUTINE TESTS FOR MICROBIOLOGICALLY INFLUENCED CORROSION (MIC). THE TRRC WAS NOTIFIED AT 9:17 AM, AND INCIDENT # IS 2231.