California’s historic drought and shrinking water supplies are putting a spotlight on hydraulic fracturing or “fracking” and its thirst for freshwater. In other states, the controversial technique is a heavy water consumer, using millions of gallons of freshwater to extract oil or gas from each well.
In California, fracking uses less water on average than in other states, according to industry data.
The southern San Joaquin Valley is the site of rising tensions between farming and fracking, as the two industries are increasingly coming into contact. While farmers fallow land and pull up orchards, they’re asking whether there’s enough water to go around.
http://blogs.kqed.org/science/audio/with-drought-new-scrutiny-over-frackings-water-use/