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upr000156 77

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upr000156-077
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    35. The foregoing tabulation shows that the Las Vegas urban area used an estimated 20.0 MOD of water for a pop­ulation of 31,300 persons. The per capita water consump­tion is thus 640 gallons per day. The per capita water consumption in the entire valley (exclusive of the indus­trial demand of the Basic Magnesium Plant) is 790 gallons per day. The records of the Las Vegas Land and Water Company show that the months of least water consumption are gen­erally December, January and February. During these months the temperatures are relatively low and there is generally some rainfall. Water requirements for lawn and garden watering and for cooling should be negligible. An index of the use of water for domestic purposes may be the water consumption during the minimum months. The annual average consumption and the maximum and minimum months for the years 1932 to 1948 are shown in Table 2. This table shows that the minimum month averages approximately 51 per cent of the average annual consumption. From the average water con­sumption during the three minimum months, the following tabulation was made: