DIXIE PIPELINE COMPANY LLC

Incident Narrative

ON JANUARY 10, 2023 AT 17:51 EASTERN TIME (ET), ENTERPRISE HOUSTON CONTROL CENTER (HCC) RECEIVED A CALL FROM THE TERRELL GEORGIA FIRE DEPARTMENT INDICATING A FIRE NEAR THE DIXIE SPUR LINE. AT 17:53 ET HCC REMOTELY CLOSED UPSTREAM AND DOWNSTREAM VALVES AT THE NEAREST SITES TO THE SUSPECTED ACCIDENT. AT 20:00 ET, ENTERPRISE PERSONNEL ARRIVED ON SITE AND CONFIRMED THE FIRE STEMMED FROM THE DIXIE SPUR LINE. AT 20:14 ET TECHNICIANS CLOSED AN UPSTREAM MANUAL VALVE THAT WAS CLOSER TO THE ACCIDENT. AT 20:31 TECHNICIANS CLOSED A DOWNSTREAM MANUAL VALVE THAT WAS CLOSER TO THE ACCIDENT. THE MANUAL ISOLATION WAS APPROXIMATELY 10 MILES. ENTERPRISE DETERMINED THE EVENT TO BE REPORTABLE AND REPORTED TO THE NRC AT 20:41 ET. THE FIRE WAS PUT OUT BY STRONG WIND AND RAIN ON JANUARY 12, 2023. THE AFFECTED SEGMENT WAS CUT OUT ON JANUARY 14, 2023, AND RETURNED TO SERVICE ON JANUARY 16, 2023, WITH A 20% PRESSURE REDUCTION UNTIL THE CAUSE COULD BE CONFIRMED. METALLURGICAL ANALYSIS INDICATED THE SUBJECT LEAK OCCURRED FROM A LIGHTNING STRIKE. A LIGHTNING STUDY FROM STORMGEO REVEALED NUMEROUS CLOUD-TO-GROUND LIGHTNING STRIKES WITHIN A 5-MILE RADIUS OF THE LEAK SITE ON JANUARY 4, 2023 AT 2:02 PM. THERE WERE THREE STRIKES WITHIN A MILE OF THE LEAK SITE, WITH THE CLOSEST BEING 0.11 MILES AWAY.