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Motiva Enterprises (1406), Norco

LDEQ Accident Report

Accident #79812
PDF AvailablePDF
State Police #05-03944
Accident Date2005-06-14
Report Date 2005-06-16
Follow-up Date 2005-07-20
Follow-up: Yes

Pollutants Released

Pollutant Duration Point Source Greenhouse Gas Criteria Pollutant Ozone forming chemical Amount of Release
Carbon Monoxide0 h 54 mShell Chemical GO-1 Processing Unit, GO-1 elevated flareNOYESNO89.7 pounds
Nitrogen Oxide0 h 54 mShell Chemical GO-1 Processing Unit, GO-1 elevated flareNOYESYES54.2 pounds
Particulate Matter0 h 54 mShell Chemical GO-1 Processing Unit, GO-1 elevated flareNOYESNO10.2 pounds
Volatile Organic Compounds (VOCs)0 h 54 mShell Chemical GO-1 Processing Unit, GO-1 elevated flareNONOYES42.6 pounds
1,3-Butadiene0 h 54 mShell Chemical GO-1 Processing Unit, GO-1 elevated flareNONOYES3.4 pounds
Benzene0 h 54 mShell Chemical GO-1 Processing Unit, GO-1 elevated flareNONOYES1.0 pounds
TolueneNONONO0.3

Accident Classified As: Reportable Quantity

Cause of Problem: Power Failure

Entergy was in the process of performing a periodic maintenance on relays at the Norco Substation. A relay tip occurred at the Norco Substation unexpectedly. The power outage resulted in the shutdown of two compressors in the Shell Chemical GO-1 Process Unit, resulting in flaring of process gases at the GO-1 Elevated Flare.

Discharge Preventable - No

Notes/Remedial Actions

Operations personnel took immediate corrective actions to minimize the level of emissions; process gases were flared at West Op Ground flare until the compressors re-started and the G0-1 process units were back under control; Motiva maintained that the incident was not under their control, rather the control of Shell Chemical and Louisiana Holdings LLP