Emissions from Valero refinery part of repair

BENICIA, CA -- The Valero refinery has been experiencing intermittent visible emissions of what looks like dark gray smoke from its main stacks since Thursday, a spokesman for Valero said.

The emissions are related to the repair process from a hydrocarbon release on Thursday that injured four workers and triggered a shelter-in-place alarm for the surrounding community, he said.

The spokesman said the community should not be concerned about the recent residual emissions.

The Bay Area Air Quality Management has been contacted about the releases and is currently investigating the exact cause.

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