The Bay Area Air Quality Management District says the settlement covers 19 violations from 2008 and 2009.
Among the violations the company was cited for failing to take flare-gas samples, inadequate measurement of flare gas flows and inaccurate ground level monitoring of hydrogen sulfide.
Air district executive Jack Broadbent says the district has the responsibility to protect the health of residents around refineries. He says any violations, no matter how minor, are not tolerated.
Phillips 66 spokeswoman Janet Grothe said most of the violations were disclosed by the company to the board and were fixed quickly.
A study published June 16 by UC Davis and other researchers shows that wild bee diversity is declining. The researchers said steps must be taken to conserve them -- and not just those that are the main pollinators of agricultural crops.
Warmer weather is bringing out snakes, including rattlesnakes, in Northern California.
The company responsible for the crude oil spill off the Santa Barbara coast said Wednesday that cleanup costs are $3 million a day.
Groups sue California, U.S. officials over management of water supply, claiming fish and the Delta estuary are being short-changed.
Relatively few of the cars on the road in California are responsible for most of the pollution. Now the state is trying to do more to get them off the road.