From the Natural Resources Defense Council (NRDC) staff Switchboard blog, in a post by Jon Devine:

“California’s severe drought is threatening people’s drinking water supplies, agriculture, the environment, and – as we recently learned — craft beer.  Brewers who depend on clean water from rivers worry that water managers may need to shift them to other supplies that do not have the same particular mineral content as the water that gives their brews a distinctive taste.”

Read more from NRDC’s Switchboard blog