California desert aquifers used for drinking water have high levels of inorganic elements, including arsenic and boron

     The U.S. Geological Survey reports that inorganic elements - arsenic, boron, fluoride, and five other inorganic elements - have been detected at high concentrations in 35 percent of untreated groundwater used for public water supply in the deserts of southern California. In contrast, human-made organic chemical constituents and nitrate were found at high concentrations in less than 1 percent of the desert region’s aquifers. READ MORE »