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Valero (1238), Meraux

Releases of Wastewater

LDEQ Accident Number
Accident Date		 Point Source(s) Notes Amount of Release
146706

2013-02-18		Wastewater Treatment Plant
Chemical injection line
Cause: A citizen called in a complaint on 2/18/13 citing a "sulfur odor." The complaint is described: " Sulfur odor noticed at 10:30am and stronger at 04:12pm winds easterly. Started feeling bad and as day worn on began getting headache." LDEQ conducted surveillance of the area on 2/19/13, and noted a slight odor of burnt hydrocarbons near the entrance of the plant from St. Bernard highway. According to Valero facility rep Justin Stubbe, "a review of February 18th operations reveals no upsets or malfunctions. A daily patrol of the refinery perimeter recorded a slight odor from the refinery's wastewater treatment plant. Given the brisk wind that day (10-20 MPH with an approaching front), it is possible that this odor carried further than it normally does. We are reviewing wastewater treatment plant operations for potential opportunities to reduce odors. Two events occurred on the Crude Unit on February 19th. It is unknown whether they may be related to the odors you detected on St. Bernard Highway. A compressor suffered a mechanical failure (approximately 11:45 HRS) and a small leak occurred on a chemical injection line (approximately 16:30 HRS). No emergency condition existed and no reportable quantities were released. The compressor has been shut down for repairs and the chemical injection line was isolated."

Followup: No

Notes: Valero comments that no upsets or malfunctions occurred, but also listed three possible reasons for odors: wastewater odors recorded, a small leak occurred on a chemical injection line, and a compressor suffered a mechanical failure.