Includes: list of the Company's reservoirs showing the county in which it is located, the dam crest elevation, the capacity, and the primary use; maps showing the location of reservoirs, power plants, canals, and other facilities which include hydroelectric developments and associated water distribution systems; list of hydroelectric generating plants and the county in which each is located; a statistical sheet showing domestic water systems and ditch systems showing the number of customers in each, the metered sales, and the source of water; tariff sheets filed with California P.U.C., which indicate the domestic water systems service areas and the district ditch systems; a list of resale customers indicating the source canal, the county, and the quantity sold in 1959; a summary of contracts for transportation of water; and, the annual reports for 1958 and 1959.