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Nevada Water Quality
77
Utilities in database
3.1M
Residents served
10%
On private wells
2
Key contaminants tracked
Drinking Water in Nevada
Nevada has 77 community water systems serving approximately 3.1 million residents. Primary water sources include groundwater. The most commonly reported contaminants include disinfection byproducts, lead. 10% of Nevada residents rely on private wells. NDEP holds primary enforcement authority under the Safe Drinking Water Act.
Utilities in Nevada
76–77 of 77Key Contaminant Concerns in Nevada
Lead
Lead is a naturally occurring heavy metal that was widely used in plumbing infrastructure until it was banned for new installations in 1986. An estimated 9.2 million lead service lines still connect homes to public water mains across the United States, along with millions of homes with lead solder in their internal plumbing.
DBPs
When utilities add chlorine to water to kill pathogens, it reacts with dissolved organic matter — leaves, algae, soil — to produce disinfection byproducts (DBPs). Over 600 DBPs have been identified. The EPA regulates two groups: total trihalomethanes (TTHMs, including chloroform) and haloacetic acids (HAA5). DBP levels tend to be highest in surface water systems and in warm months when organic matter is elevated.
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Data source: Utility data from EPA SDWIS. 77 active community water systems ingested. CCR contaminant data ingestion in progress.
Last updated: 2026-04-22