Farmers and Kern County, California Commissioners' Meeting: Well Water Contamination California grows 2/3rds of the nations produce. Some farmers in the Central Valley farmers are buying recycled oil water from Chevron. Kiran visits the Central Valley's Cawelo Water District where the drought is causing farmers to use recycled oil water to irrigate their crops. She takes in the smells so you don't have to. This water is toxic. It can have 1 or more of 450 chemicals that oil companies use to bring oil to the surface. Hungry Now?