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LAS VEGAS VALLEY WATER BUDGET: RELATIONSHIP OF DISTRIBUTION, CONSUMPTIVE USE, AND RECHARGE TO SHALLOW GROUND WATER
Citation:
Patt, R. LAS VEGAS VALLEY WATER BUDGET: RELATIONSHIP OF DISTRIBUTION, CONSUMPTIVE USE, AND RECHARGE TO SHALLOW GROUND WATER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-78/159 (NTIS PB287829), 1978.
Description:
Estimates of quantity and geographic distribution of recharge to the shallow ground-water zone from water use return flows in Las Vegas Valley were made for the years 1973, 1965, 1958, 1950, and 1943 as part of a broader study on the impact of water and land use on ground-water quality. Considered components of water use in Las Vegas Valley include the following: supply from surface and ground water; agriculture using potable water; agriculture using sewage effluent; residential lawn watering; lawn watering of parks, schools, cemeteries, hotels, motels; golf courses using potable water; golf courses using sewage effluent water; septic tank recharge; evaporative coolers; system losses; industrial use; power plant cooling; swimming pool use; consumptive use by phreatophytes; in-valley recharge from precipitation, and 'unaccounted for water'. Consumptive use of plants was calculated through use of the Blaney-Criddle method as 3.47 feet per year and recharge was assumed to be the difference between applied water and calculated consumptive use.