MAGELLAN PIPELINE COMPANY, LP

Incident Narrative

AT 04:58 ON JUNE 30 THE MAGELLAN PIPELINE COMPANY, L.P. OPERATIONS CONTROL CENTER IN TULSA, OK RECEIVED A CALL INDICATING THE PRESENCE OF A STRONG GASOLINE ODOR FROM A STORM SEWER ADJACENT TO THE SUBJECT PIPELINE. THE LINE WAS IMMEDIATELY SHUT DOWN AND LOCAL MAGELLAN PERSONNEL CALLED OUT TO INVESTIGATE, RESULTING IN DISCOVERING THIS RELEASE. REPAIR WAS MADE USING A PRESSURE-CONTAINING FULL ENCIRCLEMENT SLEEVE, AND IMPACTED SOIL WAS REMOVED AND REPLACED WITH CLEAN SOIL. THIS UPDATED SUPPLEMENTAL-FINAL REPORT IS BEING FILED AT THE REQUEST OF PHMSA CENTRAL REGION. THE EARLIEST DATE AND TIME THAT MAGELLAN BECAME AWARE OF THE RELEASE WAS AT 04:58 ON JUNE 30, 2010 WHEN THE OMAHA FIRE DEPARTMENT CALLED THE MAGELLAN OPERATIONS CONTROL CENTER AS INDICATED ABOVE, AT WHICH TIME MAGELLAN INSTITUTED ITS CODE RED PROCEDURE, IMMEDIATELY SHUTTING DOWN THE LINE. MAGELLAN HAS NOT BEEN ABLE TO ESTABLISH WITH CERTAINTY A TIME WHEN THE RELEASE MAY HAVE OCCURRED EARLIER THAN 04:58 JUNE 30, 2010. THE OMAHA FIRE DEPARTMENT FLUSHED THE STORM SEWER SYSTEM WITH WATER, CAUSING SOME PRODUCT TO IMPACT THE WATER IN THE CITY'S STORM WATER DETENTION PONDS. MAGELLAN DOES NOT KNOW THE EXTENT OF THE IMPACT AND WISHES TO STRESS THAT THE WATER IMPACT LISTED IN PART D #4 AND #5 IS LARGELY THOUGHT TO BE THE RESULT OF FLUSHING THE SEWER SYSTEMS. MAGELLAN CONDUCTED WATER IMPACT ANALYSIS OF THE DETENTION PONDS AND TREATED THE WATER AS NECESSARY TO ENSURE THE QUALITY OF THE WATER RELEASED FROM THE DETENTION PONDS.