How we get water in the desert.

Southern Nevada receives approximately 90% of its drinking water from the Colorado River, via Lake Mead. The river is considered one of the highest quality and cleanest water sources available in the world, originating as snow fall on the western slopes of the Colorado Rocky Mountains. The remaining 10% of our drinking water comes from groundwater sources, or wells, located throughout the Las Vegas valley.

Fresh Drinking Water  

The City of Henderson treats and provides approximately 15% of the City's drinking water by our own Water Treatment Plant, with a capacity up to 15 million gallons per day. The other 85% is supplied by our partner, the Southern Nevada Water Authority.

Las Vegas Wash

In 2007, several Southern Nevada water and wastewater agencies formed the Las Vegas Valley Watershed Advisory Committee (LVVWAC) in order to address laws that govern water management practices and to protect the valley's watershed. Learn more about this regional water quality effort at the Las Vegas Valley Watershed Advisory Committee.

Surface Water Source Assessment

The federal Safe Drinking Water Act, amended in 1996, requires states to develop and implement source water assessment programs to analyze existing and potential threats to the quality of public drinking water throughout the state.

A summary of the City of Henderson’s susceptibility to potential sources of contamination was initially provided by the State of Nevada in 2003 and was first included in the City of Henderson’s 2004 Water Quality Report. Information pertaining to the findings of the source water assessment are available below, or for viewing in person at the City of Henderson City Hall, 240 Water Street, Henderson 89015. Please call 702-267-2500 for an appointment.

Additional information about the Nevada Source Water Assessment Program may be found on the Nevada Division of Environmental Protection's website.

Source Water Assessment