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.
Gov. Brown attended the first UN Climate Conference held since President Donald Trump said he will withdraw from the Paris Climate Accord.
A year after California enacted a statewide ban on single-use plastic bags, environmental groups say early data show a significant dip in plastic trash.
A collection of environmental, fishing and whitewater groups recommends changes to dam management in a new report, issued in response to the failure of the main spillway at Lake Oroville in February.
Traditional methods to cool cows use 11,000 gallons of water per cow per year. UC Davis researchers are trying out new techniques that use less resources.
Caltrans is worried about the possibility of dead trees falling onto some California highways. The agency has already removed 107,000 trees. Now the agency is getting ready to remove another 54,000 trees, including some on private land.