URBANIZATION AND WATER CONSERVATION IN LAS-VEGAS VALLEY, NEVADA

By the year 2010 southern Nevada, which is one of the fastest-growing urban centers in the West, will have committed nearly 100% of its wate r resources. Early in its history, Las Vegas developed a reputation fo r high per capita water use compared to other major cities in the arid West. This arose from a belief by its residents that the valley was s ituated on an inexhaustible supply of water, enticements by the state to drill wells for urban development, the attraction of tourists, and a lack of enforcement of passed or existing laws. The first water cris is in the 1940s was averted by allowing the principal aquifer to be ov erdrafted. Overdrafting of the aquifer has led to geologic problems fo r the valley and its residents. The second major water crisis was aver ted in the 1970s by the increasing availability of Colorado River wate r to area residents. Metering, local ordinances, research, and educati onal programming are impacting water use by addressing the problems of overdrafting and conservation.