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Louisiana Refinery Accident Database

ExxonMobil Refinery (2638), Baton Rouge

LDEQ Accident Report

Pollutants Released

Accident Classified As:

Cause of Problem: Start Up, Shut Down

emissions released during the planned shutdown of the No. 200 Sulfur Plant (SRLA-200) were regulated under the Clean Air Act requirements and the unit's MACT II Startup, Shutdown, and Malfunction Plan (SSMP) from 40 CFR 63 Subpart UUU which requiresfacilities to minimize excess emissions during periods of startup, shutdown, or malfunction

Discharge Preventable - No

Notes/Remedial Actions

The incident occurred as a result of a scheduled, planned, and properly executed event. It was not preventable. Remedial measures are cited as appropriate procedures were followed. The emissions are federally permitted and were minimized in accordance with the MACT II SSMP. Note: there is a time discrepancy - the report states that the incident started at 1:00pm on 03/23/2006 but was discovered at 2:00pm on 03/23/2006. May 2nd follow up later states that this was a scheduledus train shutdown and this type of shutdown is expempted from the 250 ppmvd under the consent decree (paragraph 67(c)). This is not a tail gas incident because of the above mentioned exemption. The root cause of the emissions is an unavioid