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BASIC MAGNESIUM, INCORPORATED WATER SUPPLY SYSTEM CLARK COUNTY, NEVADA vmmum TMs system Is for transmission of voter from Lake Mead, a distance of 15*15 miles, with a stalls lift of 806 feet fro® the highest surface level of the lake to the Water Treatment Works at the Magnesium Platt, 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 CaCC^. msjQAL imm The component units of the system are as followsI Intake Pumping Plant* Pressure Pips Line from Intake Pump St tlon to Booster Pump Station, Booster Pump Station* Pressure Pipe Line from Booster Piaap Station to Terminal Reservoirs, Terminal Reservoirs* Water Treatment Plant* Electric Transmission and Controls Lines. Distribution Mains to Points of Consumption. INTAKE PUMPIKC PLANT Ths Intake Pumping Plant consists of the following unites 1 Steel Truss Cantilever Structure* 1 Pump Bouse* 6 Deep Well Turbine Pumpe* 1 Concrete Control Bouse* Electrical Control Equipment* CANTILEVER STRUCTURE The Cantilever Sturoture 1# of trussed steel oonstruotion, 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*