LOOP LLC

Incident Narrative

AT APPROXIMATELY 0950 ON 12/25/2022, AN OPERATOR MAKING ROUNDS AT THE LOOP CLOVELLY TANK FACILITY (CTF) FOUND CRUDE OIL PUDDLING ON THE GROUND AROUND THE CTF METER SKID CABLE TRAY & PRESSURE REDUCING STATION (PRS). UPON DISCOVERY, THE AREA SUPERINTENDENT, REGULATORY DEPARTMENT, AND QUALIFIED INDIVIDUAL WERE NOTIFIED. CRUDE OIL PUDDLING AREAS OF 100' X 4' X 1/16"" THICK UNDER THE FACILITY CABLE TRAY AND 50' X 3' X 1/16"" THICK ON THE ADJACENT ROCKS WERE REPORTED TO THE REGULATORY DEPARTMENT, WHICH ESTIMATED THE SURFACE VOLUME TO BE 20.8 GALLONS, AND REPORTED IT TO THE NATIONAL RESPONSE CENTER (NRC # 1355901). CLEANUP AND SOURCE DISCOVERY OPERATIONS COMMENCED IMMEDIATELY AFTER DISCOVERY. RAPID RESPONSE EFFORTS ENSURED THAT THE ENTIRETY OF THE RELEASE WAS CONTAINED WITHIN FACILITY SECONDARY CONTAINMENT BERMS, RESULTING IN NO ENVIRONMENTAL IMPACTS. SUSPECTED BURIED PIPING WAS EXCAVATED AND THE SOURCE OF THE RELEASE WAS CONFIRMED TO BE A PINHOLE IN THE 24-INCH SECTION OF THE CTF LINE DISPLACEMENT BYPASS PIPING. AS INDICATED IN PART A, QUESTION 17(A), THE SECTION OF PIPING WHERE THE RELEASE OCCURRED WAS UNDER A NORMAL FACILITY SHUTDOWN BASED ON THE OPERATIONAL DELIVERY SCHEDULE AT THE TIME OF DISCOVERY. FACILITY MODIFICATIONS WERE MADE TO REMOVE THE SECTION OF PIPING OF THE CONFIRMED LEAK SOURCE. UPON REQUIRED APPROVALS AND PRESSURE TESTING, ALL FACILITY OPERATIONS WERE RETURNED TO NORMAL OPERATIONS ON 1/19/2023, AS INDICATED IN PART A, QUESTION 17(B). THE FAILED SECTION OF PIPING WAS SUBMITTED FOR METALLURGICAL FAILURE ANALYSIS ON 1/22/2023 TO METALLURGICAL & MATERIALS TECHNOLOGIES INC., LOCATED 11701 SUNBELT CT. BATON ROUGE, LA 70809. THE RESULTS STATE THAT THE ROOT CAUSE OF THE FAILURE IS ASSOCIATED WITH UNDER DEPOSIT CORROSION AND MICROBIOLOGICAL INFLUENCED CORROSION (MIC), REPORT DATED 2/22/2023.