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Water Treatment

Because Jean's water supply is protected within the principal groundwater aquifer, it doesn't require the level of treatment associated with surface water sources, like the Las Vegas Valley's water supply from the Colorado River.

Once pumped from the principal aquifer, the water is disinfected with sodium hypochlorite to kill any potentially harmful microscopic organisms. Zinc orthophosphate is added for corrosion control as water travels through the distribution system.

Water Testing

Every month, Las Vegas Valley Water District (LVVWD) scientists collect and analyze water samples from Jean's water supply to ensure it meets all Safe Drinking Water Act standards. LVVWD tests even more frequently than the Safe Drinking Water Act requires.

For details about substances detected in the water supply, see the Jean Water Quality Report on the Water Quality page.

(You need Adobe Acrobat Reader to view the Water Quality Report. Download Acrobat Reader.)

Monitoring Waivers

The Jean Water System currently has monitoring waivers for certain chemical contaminants regulated by the Environmental Protection Agency (EPA).

A monitoring waiver means the Water District does not have to test the water for these contaminants at the frequency required by the EPA. In order to receive a waiver, the Nevada Division of Environmental Protection conducted a vulnerability assessment.

The assessment established that the water system is unlikely to be contaminated by these chemicals based on a study of:

1. The geology of the area
2. Past and current land uses (such as mining), and
3. The existence of potential sources of contamination

For details about the specific chemicals for which there are monitoring waivers, please call the Water District at (702) 258-3215 or Contact Us via e-mail.

More Information:

EPA Safe Drinking Water Hotline
Call 1-800-426-4791

Las Vegas Valley Water District
(702) 258-3215

Groundwater Management Program
This local groundwater Web site (LasVegasGMP.org) is sponsored by the Southern Nevada Water Authority. It provides information about the valley's groundwater aquifer.

EPA Office of Ground Water and Drinking Water
Environmental Protection Agency's Web site (www.epa.gov/safewater/index.html) offers information about national efforts to protect groundwater sources.