COLONIAL PIPELINE CO

Incident Narrative

ON 02/01/21 @ APPROXIMATELY 06:30 A TECHNICIAN ARRIVING AT KROTZ SPRINGS STATION (KSG) CONDUCTING A FACILITY CHECK NOTICED THE LN02 STATION SUMP WAS AT 2.4' (HIGH LEVEL IS 3.5'). BECAUSE THE SUMP LEVEL WAS HIGHER THAN NORMAL HE INVESTIGATED AND DISCOVERED LN02, UNIT 1 OUTBOARD SEAL DRIPPING KEROSENE FROM AROUND THE STUFFING BOX AREA ' THE UNIT WAS NOT RUNNING, BUT WAS NOT IN AN ALARM-STATE OR LOCKED OUT. AT 06:40 THE TECHNICIAN NOTIFIED CONTROL CENTER TO COORDINATE LOCKING OUT AND ISOLATING UNIT 1, WHICH CEASED THE DRIPPING PRODUCT. THE TECHNICIAN DISCOVERED KEROSENE IN A NEARBY CHECK VALVE VAULT AND TWO 18' ACCESS WELLS. THE OM WAS NOTIFIED AND ENVIRONMENTAL SPECIALIST AND CONTRACT PERSONNEL WERE DISPATCHED TO THE FACILITY TO FURTHER ASSESS PRODUCT IMPACTS AND COMMENCE MITIGATION ACTIVITIES. AT APPROXIMATELY 08:20 TECHNICIANS TESTED THE SEAL LEAK SWITCH ON UNIT 1 WHICH FAILED TO IMMEDIATELY ALARM AND LOCK OUT THE UNIT ' THE CONTROL CENTER EVENTUALLY RECEIVED AN ALARM FROM THE TEST @ 09:00 (40 MINUTES LATER). TECHNICIANS REMOVED, INSPECTED (DISCOVERED TWO SHAFT O-RINGS WERE SPLIT), REPAIRED AND REINSTALLED THE PUMP SEAL; AND REPLACED THE SEAL LEAK SWITCH @ 14:45 ' WHEN TESTED (P-2-P) THE NEW SEAL LEAK SWITCH IMMEDIATELY ALARMED, LOCKED OUT THE UNIT AND CLOSED THE SUCTION AND DISCHARGE VALVES. REPAIR WAS COMPLETE AND THE UNIT RETURNED TO NORMAL OPERATION @ 14:50. THE UNIT WAS OBSERVED FOR AN HOUR AFTER STARTUP TO ENSURE FUNCTIONALITY AND INTEGRITY. ALL RELEASED PRODUCT WAS CONTAINED ON CPC PROPERTY AND DID NOT RESULT IN AN EMERGENCY CONDITION. THE RELEASED VOLUME WAS 20.7 GALLONS OF KEROSENE. ALL REMEDIATION ACTIVITIES WERE COMPLETED ON 02/02/21 BASED ON THE RELEASED VOLUME AND COST OF REPAIRS/RESPONSE, NO EXTERNAL EMERGENCY NOTIFICATIONS WERE REQUIRED. A FORMAL INCIDENT ANALYSIS WILL BE CONDUCTED FOR THIS EVENT.