Two Bay Area refineries are on the U.S. Environmental Protection Agency's annual list of top toxic facilities in California. The EPA's Toxics Release Inventory, made up of reports from the facilities themselves, shows toxic chemical releases were up 10 percent statewide in 2011.
 
The Conoco Phillips refinery in Contra Costa County and the Valero Refinery in Benicia are both on the list for releasing chemicals like ammonia, nitrates and sulfuric acid. In Kern County, the Clean Harbors landfill is on the list. The landfill - which takes waste from across California - reported releasing almost 10 million pounds of toxic chemicals in 2011.

Overall, the EPA says facilities are reporting less air pollution in California, but more water pollution. Click here to go to the the EPA's 2011 Toxics Release Inventory.