Unsafe Drinking Water Adds to California's Drought Misery
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"Contamination is a major concern," Aminzadeh said. "The drought just exacerbates water issues, and the groundwater problem is one of those."
Arsenic linked to cancer
According to the state water resources study, unsafe levels of arsenic are the top contaminant in groundwater supplies, followed by nitrates.
Nitrates are most often traced to farming chemicals and animal waste. Arsenic is found naturally in soil and rock in much of the world and seeps into groundwater.
Chronic low exposure to arsenic has been traced to respiratory problems in children and adults as well as having links to diabetes, cardiovascular diseases and cancers of the skin.
http://www.nbcnews.com/business/economy/unsafe-drinking-water-adds-californias-drought-misery-n233201
