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i - -r 0 ADJ Western Region HSE Office INCIDENT INVESTIGATION REPORT No. 45962 Date July 18, 2006 From: Richard Brandes To: Jerry Stauffer, Mike Burgett Date/Time of Incident: July 17, 2006 8:00 pm Investigation Began: July 18, 2006 Location of Incident: Stockton Terminal 90 San Pablo Avenue Crockett, CA 94525 510-787-7294 510-787-1205 fax Description of Incident Bartlett Petroleum driver Brian Davis was loading clear diesel into the third compartment of his truck when the operator on duty observed overflow from the truck dome. The operator stopped the flow of product to the truck with the emergency shutoff switch and alerted the driver. The rack was evacuated. Approximately 100-200 gallons of diesel were discharged into the containment area and collection sump. This incident is classified as a non -reportable discharge. However, the NRC and local agencies were provided courtesy notifications. Results of Investigation The Bartlett truck involved had retained product in the tank that overflowed, probably 800-900 gallons. Bartlett has confirmed the truck contained retain. The driver pre-set the meter to load more product than the tank would hold. It also appears that the truck overfill sensor did not function properly. A test of the terminal overfill sensing equipment and shut -offs indicates terminal equipment operated properly. Direct and Contributing Causes of the Incident • Actions of People: driver error — the driver was unaware of retain in the truck and entered the wrong presets for loading. • Equipment: the truck overfill sensors did not operate properly, which resulted in the overfill. Recommendations to Prevent Recurrence • The incident needs to be investigated by the carrier. The Bartlett training program needs to be addressed. In addition, it appears the carrier's sensor testing and truck maintenance program needs to be 45962 incident investigation report final 7/19/2006 Page 1 of 2