William Mulholland presided over the creation of a water system that forever changed the course of southern California's history. Mulholland, a self-taught engineer, was the chief architect of the Owens Valley Aqueduct--a project ranking in magnitude and daring with the Panama Canal--that brought water to semi-arid Los Angeles from the lush Owens Valley. The story of Los Angeles's quest for water is both famous and notorious: it has been the subject of the classic yet historically distorted movie Chinatown, as well as many other accounts. This first full-length biography of Mulholland...