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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
1–25 of 77Las Vegas Valley Water District
NV0000090 · 1,539,277 served
Truckee Meadows Water Authority
NV0000190 · 442,000 served
North Las Vegas Utilities
NV0000175 · 376,515 served
City of Henderson
NV0000076 · 336,534 served
Carson City Public Works
NV0000015 · 59,000 served
Virgin Valley Water District
NV0000167 · 26,000 served
Fernley Public Works
NV0000062 · 23,064 served
City of Elko
NV0000272 · 23,000 served
Nellis Air Force Base
NV0003028 · 19,081 served
Sun Valley Gid
NV0000211 · 17,000 served
Dayton Valley Water System
NV0000032 · 16,000 served
Boulder City
NV0000011 · 15,000 served
Great Basin Water Company
NV0000270 · 12,255 served
Gardnerville Ranchos Gid
NV0000066 · 11,300 served
Great Basin Water Co Cold Springs
NV0000207 · 9,650 served
Great Basin Water Co Spring Creek
NV0000036 · 9,340 served
Incline Village Gid
NV0000158 · 9,313 served
City of Fallon
NV0000045 · 9,184 served
Big Bend Water District
NV0004092 · 9,000 served
City of Winnemucca
NV0000248 · 8,518 served
Moapa Valley Water District
NV0000160 · 8,500 served
Primm Valley Casino Resorts
NV0001073 · 7,000 served
Douglas County Carson Valley System
NV0002216 · 6,488 served
Southern Desert Correctional Ctr Ndoc
NV0005062 · 6,200 served
Indian Hills Gid
NV0000355 · 5,962 served
Key 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.
Nevada Water FAQs
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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