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Motiva Enterprises (1406), Norco

LDEQ Accident Report

Accident #130903
State Police #11-02457
Accident Date2011-04-28
Report Date 2011-05-05
Follow-up Date 0000-00-00
Follow-up: No

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Butane5mFlare: EPN 3-84NONOYESBRQ
Carbon Dioxide5mFlare: EPN 3-84YESNONOBRQ
Ethane5mFlare: EPN 3-84NONOYESBRQ
Ethylene5mFlare: EPN 3-84NONOYESBRQ
Hydrogen5mFlare: EPN 3-84NONONOBRQ
Hydrogen Sulfide5mFlare: EPN 3-84NONONOBRQ
Isobutane5mFlare: EPN 3-84NONOYESBRQ
Isopentane5mFlare: EPN 3-84NONOYESBRQ
Methane5mFlare: EPN 3-84YESNOYESBRQ
Nitrogen5mFlare: EPN 3-84NONONOBRQ
Pentane5mFlare: EPN 3-84NONOYESBRQ
Propane5mFlare: EPN 3-84NONOYESBRQ
Propylene5mFlare: EPN 3-84NONOYESBRQ
Volatile Organic Compounds (VOCs)5mFlare: EPN 3-84NONOYESBRQ

Accident Classified As: Below Reportable Quantity (BRQ)

Cause of Problem: Process Upset

A leak occurred at HIC-84, along the downstream block valves, allowing nitrogen to enter the column causing a rapid pressure increase. The distilling unit upper crude column became overpressured, and PCV-195 opened the flare to relieve pressure in the column. EPN 3-84 Flare at Shell was used because the Motiva flare was upset and the pilot light was out. Original upset occurred at Motiva DU-5 Crude Unit with a notrogen leak into the Upper Crude Column.

Discharge Preventable - No Information Given

No Information given

Notes/Remedial Actions

The Shell report for the motiva release was dated May 5th, 2010 instead of 2011.