The Environmental Protection Agency's (EPA's) Safe
Water Drinking Act and its amendments set the standards for public
drinking water supplies. The EPA ensures that these standards are met.
Employees at the Southern Nevada Water Authority (SNWA)
treatment facilities collect and analyze hundreds of water samples from
throughout the Las Vegas Valley.
The Safe Drinking Water Act requires water purveyors to
test for nearly 100 chemicals, radiological and bacteriological contaminants.
SNWA staff members test more frequently and extensively than the Safe
Drinking Act requires.