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Southern Nevada Water Authority


Video: Drought and Water Resources


Learn how Southern Nevada is conserving water, protecting groundwater and planning for the future. Play

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Water Banking

Like a savings account, water banking provides SNWA the ability to store water for future use.

In years when Nevada’s Colorado River allocation exceeds the valley’s water demands, SNWA stores water in the Las Vegas Valley Groundwater Basin as a reserve. But SNWA also has water banking agreements with Arizona and California.

Learn more about SNWA’s groundwater banking:



In accordance with Interim Guidelines established for the Colorado River in times of severe drought, shortages may be declared by the Secretary of the Interior based on the elevation of Lake Mead.

However, thanks in large part to the Southern Nevada community's significant water conservation efforts over the past decade, the community can absorb the reduction in water allocation. We are using 30 percent less water now than we did in 2002. More about shortages »

Colorado River

Nearly 90 percent of Southern Nevada's water comes from the Colorado River. Seven western states and Mexico share water from the river. More »

Conservation Projects

In response to the worst drought on record, the SNWA has worked extensively with Colorado River Basin partners to develop, implement and continue programs to mitigate drought impacts on a regional level. More »

Groundwater Development Project

SNWA is seeking groundwater rights in eastern and central Nevada that it would like to convey to Southern Nevada to enhance the area’s limited Colorado River Apportionment. More »