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ExxonMobil Refinery (2638), Baton Rouge

LDEQ Accident Report

Accident #No LDEQ Number Available
State Police #05-01963, 05-01968
Accident Date2005-03-24
Report Date 2005-03-30
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
Butene9 minutesE3A- & E3BNONOYES693.0 pounds
Flammable Vapor9 minutesE3A- & E3BNONOYES70,890.0 pounds
Volatile Organic Compounds (VOCs)9 minutesE3A- & E3BNONOYES44,957.0 pounds
Xylene9 minutesE3A- & E3BNONONO10,170.0 pounds
Toluene9 minutesE3A- & E3BNONONO10,000.0 pounds
Ethylbenzene9 minutesE3A- & E3BNONOYES2,810.0 pounds
Benzene9 minutesE3A- & E3BNONOYES2,260.0 pounds

Accident Classified As:

Cause of Problem: Instrument Failure

safety valves lifted

Discharge Preventable - Yes

Notes/Remedial Actions

There were 2 incidents involved- the 1st did no exceed any reportable quantities, the 2nd incident started on 3/24/05 at 11:21pm and ended at 11:30pm the same day; furnace reboiler was shut down to reduce tower pressure and allow safety valves to reseat; the actual release lasted 9 minutes (from 11:21pm to 11:30pm); the report stated that the safety valve release on 4 LEU was preventable, but the reboiler leak on E-3A was not expected as it was a newer bundle than E-3