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Shell Chemical East (26336), Norco

LDEQ Accident Report

Accident #153013
PDF AvailablePDF
State Police #13-05734
Accident Date2013-12-24
Report Date 2013-12-31
Follow-up Date 2014-02-17
Follow-up: Yes

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Propylene9d 21h 30mpressure relief valveNONOYESBRQ

Accident Classified As: Below Reportable Quantity (BRQ)

Cause of Problem: Equipment Failure

On December 24th 2013, Shell Chemical's OL5 operations discovered a pressure relief valve opening to the OL5 flare system.

Discharge Preventable - No Information Given

Notes/Remedial Actions

OL-5 operations began working to remove non condensables in an attempt to get the relief valve to close. To close the pressure relief valve and stop the flow to the flare system, operations reduced the pressure upstream of the pressure relief valve, returning the unit to safe, normal operating conditions.