Flaring was reported Monday at the Chevron refinery in Richmond.
The Level 1 incident was reported at 11:30 a.m. and comes after the refinery notified the city of another Level 1 incident due to flaring Saturday afternoon.
A Level 1 incident is the least severe step of a three-tier Community Warning System. It means there are no anticipated offsite impacts.
Chevron has been issued repeated notices of air quality violations connected to flaring at the Richmond refinery.
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Officials at 12:29 p.m. said Monday's flaring is no longer occurring.
