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|LDEQ Accident Number
|Point Source(s)||Notes||Amount of Release|
|VGO Line||Cause: A VGO line leaked|
Notes: Oil booms and vacuum trucks and a small plastic pool used to contain and recover material.
|Tank - T-130-9||Cause: tank leaking VGO through floor|
Notes: Emergency team mobilized to pump VGO to another tank. Emergency respose company contracted to recover non-pumpable VGO and perform soil remediation. Valero will begin to use acoustical testing on all of its tanks.
|Fill line from #1 manifold to T-130-7||Cause: Fill line from #1 manifold to T-130-7 appeared to be leaking VGO|
Notes: Absorbent boom and vacuum trucks used to contain and recover material. VGO line was excavated and removed.
|MSCCU charge line||Cause: Oily material was discovered in the section 3 Tank Field concrete ditch. It was determined that the MSCCU charge line, which runs parallel to the concrete ditch, had a piping leak and was releasing VGO to the ground. During the incident, the spilled VGO migrated to a low point in the concrete ditch. The material drained into a void in the concrete, pooled, and began resurfacing in a nearby crack. Initial report gives the root cause as being still under investigation. The follow-up report determines the release as being Below reportable quantity and give no further information.|
Notes: Clean up was mobilized, pipe was repaired, and soil was tested where VGO drained into a void in the cement.
|VGO: Tank 425-4||Cause: VGO from Tank 425-4 leaked to secondary containment through a ruptured steam coil.|
Notes: The steam coil line that ruptured was cleaned and taken out of service for demolition.
|Cause: A Vacuum Gas Oil (VGO) pipe was being placed into service, material escaped from a high point bleeder and caught fire from a nearby ignition source. The fire was quickly extinguished by field personnel and the line was isolated. The incident took place in the Distillate Hydro Treating unit (DHT), which underwent an emergency shutdown. Some VGO material that did not burn fell to the ground inside and outside of the DHT area containment. Deluge water used to control the fire had dispersed some VGO material in the areas around the unit, however, no VGO was carried offsite. Oil absorbent boom was placed in order to prevent VGO from being carried offsite or into our outfalls.|
Notes: Valero personnel took measures to stop the leak adn contain spilled VGO. The cleanup contractor mobilized crew to collect and dispose of material.
|Tank 130-8||Cause: On 11/1/11 Valero discovered that the suction line to tank 130-8 had developed a leak and had spilled approximately 20 bbls of vacuum gas oil (VGO) to the tank containment dike. A vacuum truck was used to recover pooled fluids, and the damaged section of line was repaired. Tank 130-8|
Notes: Valero contained the spilled VGO within the tank dike and collected it with vacuum trucks. They verified that the dike drain valves were closed and immediately shutdown the transfer at the tank. They mobilized the onsite vacuum trucks to remove emulsified oil and water from he dike containment area of tank 130-8. A third party OSRO was mobilized to assist in the final cleanup. Also, approximately 86 tons of recovered waste was characterized and disposed of at a non-hazardous landfill. All VGO that was pumpable was collected and returned to the refining process. They developed the corrective following actions to prevent recurrence: (1) Inspect all tanks and piping in the tank farms to confirm no additional expansion joints of this type are in service. (2) Establish an inspection schedule for all hose and expansion joints in the tank farm, Batture, and loading locks. (3) Establish a schedule to replace hoses with engineered metallic expansion joints in the tank farms, batture, and docks.