COLLINS PIPELINE CO

Incident Narrative

AT APPROXIMATELY 1728 HRS. ON DECEMBER 27, 2021, EVIDENCE OF A LEAK WAS VISUALLY IDENTIFIED BY LOCAL FIELD OPERATIONS PERSONNEL APPROXIMATELY 3.8 MILES DOWNSTREAM FROM THE ORIGIN STATION. THE RELEASE FROM THE 16-INCH BURIED PIPELINE OF ULTRA-LOW SULFUR DIESEL WAS RELEASED TO SOIL AND SURFACE WATER IN BORROW PITS NEAR THE PIPELINE. EXTERNAL NOTIFICATIONS WERE PROMPTLY MADE TO INCLUDE LOUISIANA STATE POLICE, LDEQ, DOT, AND LOSCO. ON DECEMBER 27, 2021, NRC WAS NOTIFIED AT 1755 HRS., NRC #1325365. ST. BERNARD PARISH MANAGEMENT (PRESIDENT, COUNCILWOMEN/MEN, SHERIFF, FIRE CHIEF, STATE REPRESENTATIVE, STATE SENATOR AND SCHOOL SUPERINTENDENT) WERE NOTIFIED ON DECEMBER 28. ON DECEMBER 29, 2021, 48-HR NRC UPDATE WAS MADE, NRC #1325512; AMOUNT OF PRODUCT RELEASED WAS UPDATED TO APPROXIMATELY 7,200 BARRELS. ESTIMATED AMOUNT OF PRODUCT RELEASED HAS BEEN UPDATED TO APPROXIMATELY 8,325 BARRELS ON JANUARY 27, 2022 AFTER FULL EVALUATION OF AVAILABLE DATA WAS COMPLETED. ADDITIONALLY, THE LATEST VOLUME RECOVERED OF 7,800 BARRELS IS BASED ON PRODUCT RECOVERED ON WATER AND DOES NOT INCLUDE EVAPORATION, MATERIAL IN SOIL, OR MATERIAL COLLECTED IN ABSORBENT BOOMS. RESPONSE AND CLEANUP EFFORTS WERE DEPLOYED IMMEDIATELY. EXCAVATION AND ASSESSMENT OF THE BURIED PIPELINE BEGAN ON DECEMBER 29, 2021 AND PROGRESSED OVER SEVERAL DAYS. THE FAILED SECTION OF PIPE WAS REMOVED AND REPLACED ON JANUARY 7, 2022. AUTHORIZATION TO RESTART THE PIPELINE WAS RECEIVED FROM PHMSA ON JANUARY 7, 2022. ON JANUARY 9, 2022, THE PIPELINE RESUMED OPERATION. THE LEAK DETECTION SYSTEM ON THIS PIPELINE IS COMPOSED OF (3) MODULES, REFERRED TO AS E-RTTM MODULE (EXTENDED REAL-TIME TRANSIENT MODEL), SLB MODULE (STATISTICAL LINE BALANCE), AND RUPTURE MODULE. THE E-RTTM MODULE ANNUNCIATED AN ALARM FOLLOWING THE RELEASE, HOWEVER NEITHER THE SLB NOR THE RUPTURE MODULES ANNUNCIATED ALARMS FOLLOWING THE RELEASE. BOTH THE SLB AND RUPTURE MODULES ARE EXPECTED TO ANNUNCIATE ALARMS FOR A RELEASE OF THIS NATURE. FUNCTIONALITY OF THE LDS SYSTEM IS UNDER FURTHER INVESTIGATION. COLLINS PIPELINE COMPANY IS PROGRESSING AN INVESTIGATION OF THIS INCIDENT AND CONTRIBUTING FACTORS TO INCLUDE RESULTS OF LAB ANALYSIS FOR THE REMOVED SEGMENT OF PIPE AND ROOT CAUSE DETERMINATION. RESULTS WILL BE PROVIDED IN A SUPPLEMENTAL 7000.1 REPORT. ____________________________________________________________________________________________________________ SUPPLEMENTAL UPDATES: PART A, 9 PART A, 17A, 17B PART A, 21C PART B, 5 PART B, 7 (IS MP 3.79. PHMSA PORTAL WILL NOT ACCEPT A DECIMAL ENTRY) PART D, 5B PART D, 8B, 8C, 8D, 8G PART E, 11 G1, 1, 2, 3 PART H COLLINS PIPELINE COMPANY HAS COMPLETED ITS INVESTIGATION OF THIS INCIDENT. AS REQUIRED BY CORRECTIVE ACTION ORDER CPF-1-2021-077-CAO, ITEM #3, THE MECHANICAL AND METALLURGICAL REPORT (LAB ANALYSIS FOR REMOVED SECTION OF PIPE) WAS SUBMITTED TO PHMSA ON FEBRUARY 11, 2022. ADDITIONALLY, THE ROOT CAUSE FAILURE ANALYSIS (RCFA) WAS SUBMITTED TO PHMSA ON APRIL 29, 2022. COLLINS CONTINUES TO PROGRESS COMPLETION OF ALL CAO ITEMS. ____________________________________________________________________________________________________________ SUPPLEMENTAL/FINAL UPDATES: PART D, 8 / PART E, 11 SELECTIONS & UPDATED DESCRIPTION / PART G1, 2 (UPDATED DESCRIPTION) / PART G1, 3 (REMOVED DESCRIPTION) / PART K (INCORRECT OPERATION SELECTION) PART H FINAL UPDATE: BASED ON THE ROOT CAUSE FAILURE ANALYSIS (RCFA) PERFORMED BY DYNAMIC RISK ASSESSMENT SYSTEM, INC, DATED APRIL 29, 202, THE DIRECT CAUSE OF THE RELEASE WAS EXTERNAL CORROSION AS A RESULT OF INSUFFICIENT COATING IN THE AREA OF THE RELEASE. WHILE PROCEDURES WERE SUFFICIENT, IT WAS DETERMINED THAT A SUB-CAUSE WAS CONTROLLER TRAINING AND KNOWLEDGE OF ABNORMAL OPERATING CONDITION PROCEDURES, WHICH CONTRIBUTED TO THE VOLUME RELEASED. COLLINS PIPELINE IS PROGRESSING COMPLETION OF ALL ROOT CAUSE FAILURE INVESTIGATION RECOMMENDATIONS. [PART H NARRATIVE CHARACTER LIMIT REACHED]