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Valero (26003), Norco

Releases of Diesel Fuel

LDEQ Accident Number
Accident Date
Point Source(s) Notes Amount of Release

No information given.
Cause: A one inch hose on the diesel charge pump had ruptured. The product was being charged from Tank 80-1 which was currently in Ultra Low Sulfur Diesel service.

Followup: Yes

Notes: The diesel pumps were immediately shut down to prevent any additional spillage. A third party emergency response contractor was called onsite to cleanup the spill. About 42 gallons of diesel fuel was recovered from the area via vacuum truck.
126.0 gallons

12 inch hose
Cause: 12

Followup: Under Investigation

Notes: NA

Tank T-150-2
Cause: personnel digging holes around tank T-150-2 to place covers over the grounding leads around tank notice diesel leaking from these holes.

Followup: No

Notes: Refinery personnel used absorbent boom and vacuum trucks to contain and recover the material.

pump connected to tank 80-1
Cause: Portable diesel-powered transfer pump caught fire. Releases include Acetaldehyde 0.0284 lbs and Acrolein 0.0034 lbs. FIRE.

Followup: No

Notes: ERT extinguished fire in 20 mins.
20.0 gallons

Tank 150-25 & Tank 325-5: Expansion Joint
Cause: Refinery letter states that diesel was spilled due to the malfunction of an expansion joint on the inlet piping of to tank 150-1 during the transfer of ultra low sulfur diesel between two tanks.

Followup: Yes

Notes: RQ. Reportable quantities were exceed. Vacuum trucks were used to pump down diesel fuel from the dike containment area of Tanks T-150-1 & 2. The refinery also mobilized a third party contractor for site remedial cleanup efforts. In addition, frac tanks and portable pumps were used to assist in the recovery. The contaminated soil was sent to a landfill. The following actions were taken to prevent a recurrence of the incidence: 1. A refinery guideline will be developed and published describing the steps needed to avoid water hammer when starting pumps in the tank farm. 2. Complete a tank farm survey to prioritize hose and expansion hose replacement. 3. Replace all stainless steel hoses with hard pipe or an engineered expansion hose. 4. Develop, write, and publish to the Right to Know Center, a Standard Operating Procedure to specifically address the transfer that was made during the incident. 5. Provide additional training on the new Ultra Low Sulfur Diesel system for all operators in the tank farm.
112,890.0 gallons