SFPP, LP

Incident Narrative

ON SATURDAY, 1/19 AT APPROXIMATELY 12:15 PM CONTACT WATER WAS FOUND TO BE RELEASING AT A STEADY RATE FROM THE 6'OCLOCK POSITION NEAR TANK W-2'S FILL VALVE INTO A VALVE VAULT. TANK W-2 IS A BREAKOUT TANK PERMITTED FOR MULTI-PRODUCT USE AND WAS BEING USED AS TRANSMIX CONTACT WATER EXCESS FLOW AT THE TIME OF THE RELEASE DUE TO HEAVY RAINFALLS THROUGHOUT THE WEEK. OES AND NRC NOTIFICATIONS WERE MADE. DUE TO THE UNCERTAINTY OF WHERE THE RELEASE WAS COMING FROM, ENGINEERING CONTACTED A CONTRACTOR TO EMPTY AND INSPECT THE TANK. THE RELEASE VOLUME FROM THE VALVE VAULT WAS 47.4 GALLONS OF WATER/TRANSMIX. CONSERVATIVELY ESTIMATED AT 5% FUEL, RESULTING IN AN ESTIMATED 2.37 GALLONS OF TRANSMIX RELEASED ONTO SOIL AT THE BASE OF THE VAULT. SUBSEQUENT INVESTIGATION FOUND SOME CRACKS IN THE FLOOR PLATE NEAR THE FILL/SUCTION LINE AND SOME CRACKS AT THE OPPOSITE END OF THE TANK PERPENDICULAR TO THE CORNER WELD. NOTE: PART A, #6 THERE WERE THREE NRC NOTIFICATIONS MADE. THE FIRST (#1235587) NOTIFIED OF A THREATENED RELEASE, THE SECOND (#1235849) CONFIRMING THE PROBABILITY THAT THE $50,000 REPORTING THRESHOLD WOULD BE EXCEEDED AND THE THIRD (#1235973) WAS THE PHMSA-REQUIRED 48 HOUR FOLLOW-UP NOTIFICATION. NOTE: PART A, #14 WHILE THIS TANK WAS TAKEN OUT OF SERVICE, PIPELINE AND OTHER FACILITY OPERATIONS WERE NOT AFFECTED.