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<br />. .- I"~ , <br />:':',-I'i <br /> <br />t... . <br /> <br />CHAPTER 1 <br /> <br />OPERATION AND MAINTENANCE <br /> <br />MAIN AQUEDUCT <br /> <br />THE main aqueduct is 242 miles in length. It extends from the <br />Intake pumping plant on Lake Havasu, formed by Parker <br />Dam, to Lake Mathews in the Cajalco basin. This lake is the <br />terminal reservoir of the main aqueduct and is located south of the <br />City of Riverside. <br />The facilities of the main aqueduct consist of a telephone system <br />reaching all points of operation, a 230-kv transmission system <br />bringing power from Hoover Dam to operate the five pumping plants, <br />Parker, Gene, and Copper Basin dams and reservoirs. tunnels, canals, <br />eut-anct-cover conduits, inverted siphons, paved roads from state and <br />county highways to camps, and unpaved patrol roads. In December <br />1952 one-half of the Parker power plant, consisting of two generat- <br />ing units, will become a part of the aqueduct upon payment to the <br />United States of half the cost of the plant. <br />The cost of the main aqueduct features to ,June 30, 1952 is shown <br />in table 2 under the headings of original cost and additions and <br />betterments. The original construction was completed July 31, 1941. <br />All costs of organization of the District, engineering, and surveys <br />are included under preliminary expense, and the costs of the Lake <br />__ ----.Hav asu_lands.are.i !lclu cI e<l llIldel'-rig ht-of-w ay., .the-title-being-vested-' - --- <br />in the United States, as also is Parker Dam. <br /> <br />f d <br />, <br /> <br />PUll/piny prallts <br /> <br />To keep up with thc increasing demands for water the pumping <br />plants along the aqueduct were operated continuously throughout <br />the :,-ear except for about forty-eight hours of accumulated inter- <br />ruptions due to power failures of short dlll'ation and for planned <br />maintenance. During the months of greatest demand, .July to <br />November 1951 inclusive and from May 25th until June 7, 1952, <br />approximately 180,000 gallons of water per minute were kept flowing <br />through the main aqueduct from the Colorado River into the San <br />Diego aqueduct and Lake Mathews. During the rest of the year a <br />single pump in each plant maintained one-half of that flow. <br /> <br />[ 131 <br /> <br />, <br /> <br />~ <br />