Those figures are based off of grain fed, mass produced cattle. Assuming that all such grains originate in California, or even that it applies to all meat, is s

Those figures are based off of grain fed, mass produced cattle. Assuming that all such grains originate in California, or even that it applies to all meat, is silly. They are not accurate for grass fed beef. Around Petaluma, for example, the cows graze on grass that is not irrigated. They may be supplemented with grain in the winter months. A cow itself, not including water used to grow feed, will consume about 30-55 gallons of water to every hanging pound. You can do this calculation yourself: A decent hanging weight of a cow is about 600 pounds. A cow drinks ~25 gallons a day, and goes to slaughter around age 3. (25x365x3)/600.