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Motiva Enterprises (2719), Convent

Releases of Heavy Cycle Gas Oil

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

Tank 20D-33
Cause: Spill occurred during tank cleaning activities

Followup: No

Notes: Letter states that release was BRQ
288.0 pounds

FLARE: Flare #3
Cause: A process upset occurred at the H-oil unit resulting in a flare ground fire. Approximately three barrels of heavy cycle gas oil and diesel fuel impacted the soil/grass which caught fire and burned the grass. Refinery follow-up report states that the incident was attributed to faulty instrumentation on the unit knock-out flare drum. FLARE. FIRE.

Followup: Yes

Notes: RQ. Refinery letter states that reportable quantities for oil and sulfur dioxide were exceeded. Connected to a citizens complaint that Flare #3 was on fire. Ascension Fire Department was on scene to extinguish the grass fire. Motiva made efforts to contain the sour hydrocarbon within the FGR system and to treat sour gas streams prior to depressuring to the flare system, However, sour gas was still combusted in the flare. Second time possibly exceeding the 500-pound limit of SO2 within two months due to system upset with the H-Oil unit: See incident report 127630.
130.0 gallons

plant pipeway
Cause: Release of 121.8 gallons of Heavy Cycle Gas Oil (HCGO) resulted when a leak developed in a previously installed clamp in a plant pipeway. The release point was not subject to permit. Inspection was conducted by the Louisiana Department of Environmental Quality (LDEQ) on 8/24/14.

Followup: No

Notes: Oil was contained on site, recovered using vacuum trucks and reprocessed in the refinery's recovered oil system. A drip pan and absorbent pads were deployed to contain and absorb the leak. The leak was isolated and stopped and the line is currently being prepared for maintenance. The High-cycle gas oil was contained/recovered on site. Residual oil staining remaining on the vegetation and ground surface was excavated and removed until oil was no longer visible. Oil in contact with the ground was confined to the surface with no impact below a couple of inches. All oil-stained soils, PPE, and other contaminated materials were properly containerized for disposal. Bioremediation bagasse pads were deployed to treat any remaining material. The clamp and leaking section of pipe will be replaced with a new pipe stool.
121.8 gallons