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ExxonMobil Chemical Plant (286), Baton Rouge

LDEQ Accident Report

Accident #135246
State Police #11-07037
Accident Date2011-11-11
Report Date 2011-11-18
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
Hydrogen8H 11MKD-14 charge gas drier bypass lineNONONO3.0 pounds
Methane8h 11mKD-14 charge gas drier bypass lineYESNOYES15.0 pounds
Ethylene8h 11mKD-14 charge gas drier bypass lineNONOYES47.0 pounds
Methyl Acetylene8h 11mKD-14 charge gas drier bypass lineNONONO1.0 pounds
Propylene8h 11mKD-14 charge gas drier bypass lineNONOYES14.0 pounds
Propane8h 11mKD-14 charge gas drier bypass lineNONOYES1.0 pounds
1,3-Butadiene8h 11mKD-14 charge gas drier bypass lineNONOYES3.0 pounds
T-butene28h 11mKD-14 charge gas drier bypass lineNONONO1.0 pounds
Isobutylene8h 11mKD-14 charge gas drier bypass lineNONOYES2.0
Benzene8h 11mKD-14 charge gas drier bypass lineNONOYES1.0 pounds
Acetylene8h 11mKD-14 charge gas drier bypass lineNONONO1.0 pounds
Ethane8h 11mKD-14 charge gas drier bypass lineNONOYES15.0 pounds

Accident Classified As: Below Reportable Quantity (BRQ)

Cause of Problem: Piping or Tubing

A line leak was discovered on the KD-14 charge gas dier bypass line. 107 lbs of charge gas was released as a result of a line leak on the KD-14 charge gas drier bypass line.

Discharge Preventable - No Information Given

This release was caused by an unanticipated line leak

Notes/Remedial Actions

Area monitoring was conducted and monitoring results repeatedly indicated low levels of hydrocarbon present at the leak site but at concentrations below the limit of detection at the BRCP fence line. A clamp has been placed on the line to isolate the leak. Prior to the permanent clamp being installed, a temporary clamp was installed on the line. Area monitoring was conducted. A permanent clamp was installed on the line on November 11.