California follows Regulated Riparianism. Article X, Section 2 of the California Constitution requires all use of water to be “reasonable and beneficial.” Within this, municipal and industrial uses, irrigation, hydroelectric generation, and livestock watering are typically considered to be "beneficial uses." Recently, beneficial uses have been broadened to also include recreational use, fish and wildlife protection, and aesthetic enhancements.
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* As mentioned in the Introduction Tab, Riparian Rights is traditionally an older body of law. Therefore, obtaining legislative histories for statutes can be difficult.