Re "Expansion of fracking is wrong direction" (Forum, Sept. 29): Michael Brune and Kathryn Phillips give us an excellent critique of the environmental perils in California of using fracking to extract more oil and gas. Clearly, there are very serious impacts on climate disruption, air quality, and water quality.
One other negative consequence, however, is only slightly cited in this Forum column -- the effect on the state's water supply. While it notes that one fracking well requires one to five million gallons of water (mixed with chemicals and acids), the overall impact on California's scarce water resources of so many operating wells is not discussed.
Where will all that water come from? Surely, this demands a close examination.
-- Alvin D. Sokolow, Davis