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BASIC MASHESIXJM, INCORPORATED WATER SUPPLY SYSTEM CLARK COUNTY, NEVADA DESCRIPT105 This system Is for transmission of water from Lake Mead, a distance of 15.15 miles, with a static lift of 806 feet from the highest surface level of the lake to the Water Treatment Works at the Magnesium Plant, and the softening and filtration of the water before its distribution to points of consumption. The raw water is of low turbidity, palatable and free of contamination, but is relatively corrosive and hard. The hardness of the untreated water is always in excess of 380 ppm as CaCQg. PHYSICAL C0MP0NS5TS The component units of the system are as follows * Intake pumping Plant. Pressure Pipe Line from Intake Pump Station to Booster Pump Station. Booster Pump Station. Pressure Pipe Line from Booster Pump station to Terminal Reservoirs. Terminal Reservoirs. Water Treatment Plant. Electric Transmission and Control Lines. Distribution Mains to Points of Consumption. INTAKE PUMPING PLANT The Intake Pumping Plant consists of the following unitst 1 Steel Truss Cantilever Structure. 1 Pump House. 6 Deep Well Turbine Pumps. 1 Concrete Control House. Electrical Control Equipment. CANTILEVER STRUCTURE The Cantilever Structure is of trussed steel construction, 386 feet 9*inches long with a clear projection of 233 feet, 0 inches. The deck of the structure is 13*23 feet above the high water level of Lake Mead. The location is on the deep water side of an island, which was separated from the main shore by shallow water when the lake level was high. The pump housing and pumps are located at the extreme end of the cantilever structure. The cantilever structure was fabricated and* erected by the American Bridge Company, subcontractors under Engineers Limited.