State of Arizona, complainant v. State of California, Palo Verde Irrigation District, Imperial Irrigation District, Coachella Valley County Water District, Metropolitan Water District of Southern California, City of Los Angeles, California, City of San Diego, California, and County of San Diego, California, defendants : the United States of America and State of Nevada, interveners : State of Utah and State of New Mexico, impleaded defendants : report / Simon H. Rifkind, special master

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33 1935. Power was first generated on September 11, 1936. Title to the dam is in the United States and it is operated and maintained by the Department of the Interior.13 2. Davis Dam. This dam implements regulation of releases at Hoover Dam into the seasonal pattern required by downstream irrigation and domestic users. It is located 67 miles below Hoover Dam on the main channel of the Colorado River, directly west of Kingman, Arizona. The middle of the channel at the dam site constitutes the common boundary between Arizona and Nevada. Its reservoir, Lake Mohave, is 67 miles in length, has a total usable capacity of 1,820,000 acre-feet, and at elevation 647 has a surface area of 28,500 acres. Davis Dam, with a height of 200 feet and a hydraulic height of 138 feet, is an earth and rock fill structure and has a bypass channel on the Arizona side for the spillway, outlets and power plant. The spillway capacity, at elevation 647, is 192,000 c.f.s. and the outlet capacity is 60,000 c.f.s. The five unit generating facilities have a total installed capacity of 225,000 kw. Construction of the dam was initiated on July 29, 1942, water was first impounded on January 17, 1950, and power was first generated on January 12, 1951. Title to Davis Dam is held by the United States and it is operated and maintained by the Department of the Interior.14 3. Parker Dam. This structure, located on the main channel of the Colorado River below the mouth of the Bill Williams River, 17 miles above Parker, Arizona, and 155 miles below Hoover Dam, is the diversion point for the Colorado River Aqueduct of the Metropolitan Water District of Southern California. It also regulates the flow 13Ariz. Ex. 1000, pp. 18-19. "Ariz. Ex. 1000, pp. 19-20.