KIANTONE PIPELINE CORP

Incident Narrative

ON JULY 7TH, SEVERE STORMS KNOCKED OUT POWER TO THE TANK FARM FACILITY (6:49 PM) AND UPS (BATTERY BACK-UP) BEGAN POWERING SCADA. AT 8:36 PM, THE UPS FAILED, CAUSING LOSS OF COMMUNICATIONS. AT 9:22 PM, THE POWER WAS RESTORED FOR 32 SECONDS. EIGHTEEN (18) SECONDS INTO IT'S START-UP SEQUENCE, THE DELTAV H1 CARRIER ACTUATED THE INLET VALVE (MOV101) ON 652-TANK (IDLE TANK). AC POWER WAS THEN LOST AGAIN, WHICH PREVENTED THE VALVE FROM RESETTING TO THE CLOSED POSITION. SCADA/COMMUNICATIONS WERE NOT RESTORED DURING THE EVENT. WITH THE INLET VALVE OPEN, 652 TANK FILLED WITH CRUDE OIL. THE FACILITY DID NOT HAVE A BACK-UP POWER SOURCE, SO THERE WAS NO FACILITY LIGHTING AND IT WAS COMPLETELY DARK. PERSONNEL WERE PLACED AT THE ONLY ACTIVE TANK (651 TANK) TO TAKE MANUAL READINGS. AT 12:55 AM ON JULY 8TH, AN EMPLOYEE MAKING HIS ROUNDS DISCOVERED OIL FLOWING OUT OF THE TANK VENTS, AND REPORTED THE INCIDENT TO HIS SUPERVISOR. THE INLET VALVE WAS MANUALLY CLOSED AT 1:21 AM, AND THE PIPELINE WAS SHUTDOWN AT 1:35 AM. THE COMPANY EMERGENCY RESPONSE NOTIFICATION SYSTEM WAS ACTIVATED AT 1:30 AM. APPROXIMATELY 2,672 BBLS OF OIL WAS SPILLED FROM THE TANK VENTS DURING THE INCIDENT, AND ALL OF THE OIL WAS CONTAINED ON-SITE IN BOTH PRIMARY AND SECONDARY CONTAINMENT AREAS. IN ADDITION TO THE INITIAL NRC REPORTING, THE INCIDENT WAS ALSO REPORTED TO THE STATE ENVIRONMENTAL AGENCY (PA DEP). SUBSEQUENT NRC REPORTS INCLUDE REPORTS NUMBERS 1310399 AND 1310456. A SUPPLEMENTAL REPORT WAS FILED ON 12/10/2021. ACCIDENT CAUSE WAS CHANGED FROM ""OTHER ACCIDENT CAUSE"" TO ""INCORRECT OPERATIONS"", AS DIRECTED BY PHMSA STAFF (IN ADDITION TO OTHER AMENDMENTS).