CENTURION PIPELINE L.P.

Incident Narrative

ON JUNE 7, 2021, AT APPROXIMATELY 16:18 CST, A LUBBOCK COUNTY ROAD MAINTENANCE EMPLOYEE REPORTED STRIKING A PIPELINE TO THE CENTURION PIPELINE (CPL) CONTROL CENTER, WHICH OCCURRED NEAR SLATON, TEXAS IN LUBBOCK COUNTY, TEXAS. THE CPL CONTROL CENTER IMMEDIATELY BEGAN SHUT DOWN PROCEDURES AND DISPATCHED CPL EMPLOYEES TO THE LOCATION TO ISOLATE THE LEAK ON THE POST TO SLATON AIRPORT 8"" PIPELINE. AS A RESULT OF THE THIRD PARTY LINE STRIKE, 200 BARRELS OF CRUDE OIL WERE RELEASED, OF WHICH, 175 BARRELS WERE PROMPTLY RECOVERED IN LIQUID FORM. CPL REMOVED THE CONTAMINATED SOIL AND PERFORMED OFF-SITE REMEDIATION. NO INJURIES, FATALITIES, OR FIRES WERE ASSOCIATED WITH THIS INCIDENT. UPON DISCOVERING THE ACTUAL COSTS WOULD EXCEED THE INITIAL COST ESTIMATE, CPL REPORTED THE LEAK TO THE NATIONAL RESPONSE CENTER (NRC) AT 13:20 CST ON JUNE 11, 2021 AND WAS ISSUED INCIDENT REPORT # 1307533 IN REFERENCE TO THE INCIDENT. CPL PROVIDED AN UPDATE TO THE ORIGINAL NOTIFICATION AND THE NRC ISSUED INCIDENT REPORT # 1307724. AT THE TIME OF THIS REPORT, CPL IS IN THE PROCESS OF CONDUCTING THE ROOT CAUSE FAILURE ANALYSIS. THE RESULTING INFORMATION RELATED TO THE CAUSE OF THE LEAK, PREVENTATIVE AND MITIGATIVE MEASURES (P&M), AND ANY ADDITIONAL COSTS ASSOCIATED WITH REPAIRING THE PIPELINE WILL BE SUBMITTED VIA SUPPLEMENTAL REPORT(S). SUPPLEMENTAL FINAL REPORT FILED ON 10/26/2021: ROOT CAUSE: DURING THE ANALYSIS OF THIS ACCIDENT, CPL DETERMINED THAT THE LUBBOCK COUNTY ROAD MAINTENANCE EMPLOYEE STRUCK THE POST TO SLATON AIRPORT 8'' PIPELINE WHILE CLEARING THE DITCH OF E. COUNTY ROAD 7500. THE PIPELINE'S LOCATION WAS PROPERLY MARKED WITH A PERMANENT MARKER; HOWEVER, THE EQUIPMENT OPERATOR FAILED TO VERIFY THE DEPTH OF THE PIPELINE BEFORE EXCAVATING. P&M MEASURE: AFTER REPAIRING THE PIPELINE, CPL PLACED A CONCRETE BARRIER OVER THE PIPELINE TO PROTECT IT FROM FURTHER DITCH MAINTENANCE ACTIVITIES. CPL WILL ALSO CONTACT LOCAL AGENCIES TO INCREASE AWARENESS OF THE ONE-CALL PROGRAM AND PIPELINES IN THE AREA. CPL BELIEVES THESE MEASURES WILL PREVENT SIMILAR ACCIDENTS. ADDITIONAL COSTS: ADDITIONAL COSTS HAVE BEEN UPDATED IN PART D ACCORDINGLY TO ACTUAL COSTS. SUPPLEMENTAL FINAL REPORTED FILED ON 10/27/2021: UPDATED PART A5 TO REFLECT CLOSER ACCURACY OF LOCATION OF ACCIDENT.