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Southern Nevada Water Authority

Southern Nevada Groundwater

Las Vegas Valley Groundwater

Snowmelt in the mountains surrounding
Las Vegas feed underground aquifers.

The Las Vegas Valley relied on local groundwater supplies to meet a majority of its water demands until the construction of regional facilities for the diversion and treatment of Colorado River water in the early 1970s. Currently, 10 percent of Southern Nevada's municipal water supply comes from Las Vegas Valley groundwater.

As of September 2015, the Las Vegas Valley Water District and North Las Vegas, member agencies of the Southern Nevada Water Authority (SNWA), have permanent groundwater rights totaling 40,760 acre-feet and 6,201 acre-feet, respectively. The two entities operate about 100 permitted municipal wells in the Las Vegas Valley.

Although Southern Nevada's primary municipal water supply is Colorado River water, the municipal groundwater rights of the SNWA member agencies are among the most senior groundwater rights in the valley. Groundwater remains a critical component of the area's resource picture.

Additionally, the Water Authority continues to develop a significant number of in-state groundwater resources to provide a balanced mix of Colorado River and non-Colorado River water than currently exists.

Groundwater Management Program

In 1997, the Nevada State Legislature directed the Water Authority to develop the Las Vegas Valley Groundwater Management Program to protect and manage the valley's primary groundwater supply.


Video: Groundwater - Nature's Reservoir


SNWA protects the valley's groundwater resources through the Groundwater Management Program. Play

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