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Bulletin 160-98 Pubiic Review Draft 003J08 Appendix 2A. institutionei Framework for Alioceting and Managing Water Resources in California Water Act, the project proponents were required to obtain state certification for the hydroelectric project. The State of Washington set an instream flow requirement in its certification process to protect the river's designated use as fish habitat. Section 303 of the Clean Water Act requires states to establish water quality standards for intrastate waters, with the standards to include both numeric water quality criteria and designated uses, Area of Origin Statute. During the years when California's two largest water projects, the Central Valley Project and State Water Project, were being planned and developed, area of origin legislation was enacted to protect local Northern California supplies from being depleted as a result of the projects. County of origin statutes reserve water supplies for counties in which the water originates when, in the judgment of the SWRCB, an application for the assignment or release from priority of state water right filings will deprive the county of water necessary for its present and future development. Watershed protection statutes are provisions which require that the construction and operation of elements of the CVP and the SWP not deprive the watershed, or area where water originates, or immediately adjacent areas which can be conveniently supplied with water of the prior right to water reasonably required to supply the present or future beneficial needs of the watershed area or any of its inhabitants or property owners. The Delta Protection Act, enacted in 1959 (not to be confused with the Delta Protection Act of 1992, which relates to land use), declares that the maintenance of an adequate water supply in the Delta--to maintain and expand agriculture, industry, urban, and recreational development in the Delta area and provide a common source of fresh water for export to areas of water deficiency--is necessary for the peace, health, safety, and welfare of the people of the state, and is subject to the County of Origin and Watershed Protection laws. The act requires theSWP and the CVP to provide an adequate water supply for water users in the Delta through salinity control or through substitute supplies in lieu of salinity control. In 1984, additional area of origin protections were enacted covering the Sacramento, Mokelumne, Calaveras, and San Joaquin rivers; the combined Truckee, Carson, and Walker rivers; and Mono Lake. The protections prohibit the export of groundwater from the combined Sacramento River and Sacramento-San Joaquin Delta basins, unless the export is in compliance with local groundwater plans. 2A-6