Treatment
Nearly 90 percent of our drinking water comes from the Colorado
River via Lake Mead. The remainder comes from a deep groundwater
aquifer beneath the Las Vegas Valley, which we use primarily during
summer months to meet peak demand.
Water drawn from Lake Mead is sent to either the
Alfred Merritt Smith Water Treatment Facility or the River Mountains
Water Treatment Facility.
The water is first treated with ozone to kill any
potentially harmful microscopic organisms.
A multistage filtration system then removes particles
from the water. As the water leaves the water treatment facilities,
chlorine is added to protect it on the way to customers' taps. It
also is treated to minimize pipeline corrosion.
Because it is naturally filtered, water drawn from
the groundwater basin is simply treated with chlorine as it enters
the distribution system.
For more information, visit the Southern Nevada
Water Authority Web site snwa.com.
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