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Shell Facility (3462), St. Rose

Releases in 2005

LDEQ Accident Number
Accident Date
Point Source/Release CauseNotes

Point Source(s):
5-77 (St. Rose Flare)

Benzene - BRQ
Flammable Gas - 1,048 pounds
Hexane - BRQ
Hydrogen Sulfide - BRQ
Volatile Organic Compounds - 5,048 pounds
Cause of Problem: Weather

A failure of the pilot gas regulator caused the pilot fuel gas pressure to drop below normal. Inclement weather (high winds) then caused to flare pilot to blow out. Reported weather conditions at the time were cloudy with 17mph winds
The equipment failure was unexpected and thus the discharge was not preventable. Actions were taken to override the regulator and restore the gas flow to the pilot and hence relight the flare pilot. During this time gas flow to the flare was minimized The flare pilot regulator that failed was replaced with a formal investigation to follow to see if further corrective actions are necessary. NOTE: Quantity of material released was calculated using a formula that conservatively assumes the flare is emitting at its average rate just prior to and during the event.

Point Source(s):
Tanks TK-8552 & TK -8553

Oil - 210 gallons
Cause of Problem: Weather

Heavy rainfall from Hurricane Rita caused external floating roof of a tank to allow oil to overflow and be released from a tank drain valve into an earthen dike. Caused by an unexpected failure of a level control valve.
All information was taken from the 09/26/2005 DEQ Verbal Report. There was a preliminary written follow-up report on 09/29/2005 of a release of oil to land with no additional information. Data gathering, incident investigation & clean-up still ongoing with a final report to be issued after that is complete.

Point Source(s):
No Information Given
Bypass Outfall 006
Cooling tower unit flare
GO-1 Elevated Flare/ OL 5 Elevated Flare
HCU Flare
Temporary Equipment - frac tanks, small internal combustion engines
Tank F 444
Tank F 466
Tank 463

Hydrocarbon - 0 pounds
Hydrocarbon - 0 pounds
No Information Given - 0 pounds
No Information Given - 0 pounds
No Information Given - 0 pounds
No Information Given - 0 pounds
No Information Given - 0 pounds
Oil - 0 pounds
Oil - 0 pounds
Oil - 0 pounds
Cause of Problem: Weather

Cooling tower unit is starting up much more slowly than usual due to extensie damage. Significant damage to all shrounds, fan, packing and sides. Normal unit startup falring may be extended over a longer time
This report follows the shut down due to Hurricane Katrina. They are just providing regular updates with a final follow-up report to follow after start-up activities are completed. Shell asserts this events meets the qualifications for an Upset Provision
81720, 81957, 83713

Point Source(s):
7-84 (OL-5 Ground Falre, FG-101); 6-84 (OL-5 Elevated Flare, FE-101); 1-90 (GO-1 Elevated Flare, FE602); 3-84 (Utilities East Flare, FE 501)

1,3-Butadiene - 29,849 pounds
Benzene - 16,219 pounds
Carbon Monoxide - 56,850 pounds
Ethylbenzene - 49 pounds
Ethylene - 262 pounds
Hexane - 2,492 pounds
Naphthalene - 5,183 pounds
Nitrogen Oxide - 69,648 pounds
Oil - 4,452 gallons
Particulate Matter - 14,857 pounds
Polycyclic Aromatic Hydrocarbons - 367 pounds
Styrene - 126 pounds
Sulfur Dioxide - 90,046 pounds
Toluene - 1,568 pounds
Volatile Organic Compounds (VOCs) - 525,566 pounds
Xylene - 168 pounds
Cause of Problem: Weather

Due to shutdown and damages associated with Hurricane Katrina
The most significnt point source emissions were from the Elevated flare. The report does not include emissions from tanks, HCU Flare, Emergency Bypass Outfall and other equipment that was previously reported.