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Marathon Ashland Petroleum (3165), Garyville

Releases of Hydrogen Flouride

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
98913

2007-08-24		North Flare; weep holes on the HF Acid Shelter relief valve and the Main Fractionator Bottom relief valve
Cause: Unit 27 substation failed and shut down HF Alkylation, Butamer and Amine Treating. Failure of the bellows in Unit 27 Main Fractionator Bottoms relief valve

Followup: No

Notes: Claims emission was below RQ.		0.1 pounds
98913A

2007-08-24		North Flare; weep holes on the HF Acid Shelter relief valve and the Main Fractionator Bottom relief valve
Cause: Unit 27 substation failed and shut down HF Alkylation, Butamer and Amine Treating. Failure of the bellows in Unit 27 Main Fractionator Bottoms relief valve

Followup: No

Notes: Claims emission was below RQ.		0.1 pounds
97250

2007-06-20		Leaking flange downstream of control valve on the fractionator reflux line in the HF Alkylation Unit
Cause: Flange leak

Followup: No

Notes: Claims emission was below RQ.		0.5 pounds
116896

2009-07-29		unit 27
Cause: Hydrogen Fluoride mixed with iso-butane, butane, and a seal barrier fluid sprayed from a quick connect on the seal pot of the main fractionator reflux pump onto an operator's left arm and shoulder. The injured operator was kept in a hospital overnight.

Followup: No

Notes: the pump was isolated and the line plugged.		0.2 pounds