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Transcription
53. bicarbonates and as magnesium sulfate. The water Is suitable for general use and would be readily amenable to softening. The water temperature is about 70° P. and the water is very low in turbidity. No treatment is presently provided. Lake Mead water is more highly mineralized. Based on long term analytical records, water from Lake Mead has a total dissolved solids content of 609 ppm and total hardness of 305 ppm. The hardness is in the forms of calcium bicarbonate and calcium and magnesium sulfates. The water will be more expensive to soften than that from the underground sources. Since the only treatment given Lake Mead water at the present time at the Basic Magnesium Plant is chlorination, the turbidity probably is not high enough to be objectionable. No records are available, however, on the turbidity. Lake Mead water is quite hard. Soap consumption will be high and probably difficulties will be experienced with water heaters, evaporative coolers and steaming devices. Mineralization, however, does not exceed the standards of the U.S. Public Health Service for potable water, and it appears that the water is suitable for agricultural use. A comparison of the chemical constituents of the waters from the Artesian Basin and from Lake Mead is given in Table 4.
