Water Withdrawal in California

From the U.S. Geological Survey:

About 38 billion gallons per day (42,000,000 acre-feet per year) of water were withdrawn from groundwater and surface-water sources in California in 2010, according to a new dataset now available online:http://ca.water.usgs.gov/water_use/
More info in our news release: http://www.usgs.gov/newsroom/article.asp?ID=3977