Nevada Tap Water Quality Report
68 cities analyzed • 2,585,836 people served
Updated March 2026 • Data from EWG & EPA SDWIS
Most Common Contaminants in Nevada
| Contaminant | Found In | % of Cities |
|---|---|---|
| Arsenic carcinogen | 56 of 68 | 82% |
| Nitrate carcinogen | 56 of 68 | 82% |
| Nitrate and nitrite carcinogen | 55 of 68 | 81% |
| Total trihalomethanes (TTHMs) carcinogen | 51 of 68 | 75% |
| Uranium carcinogen | 49 of 68 | 72% |
| Dibromochloromethane carcinogen | 44 of 68 | 65% |
| Fluoride | 44 of 68 | 65% |
| Bromoform carcinogen | 43 of 68 | 63% |
| Manganese | 39 of 68 | 57% |
| Bromodichloromethane carcinogen | 33 of 68 | 49% |
City-by-City Water Quality Rankings
Ranked by number of contaminants above EWG health guidelines (most to fewest).
| # | City | Detected | Above Guidelines | Above Legal | People Served |
|---|---|---|---|---|---|
| 1 | Carson City | 32 | 18 | 0 | 59,000 |
| 2 | Elko | 41 | 18 | 0 | 20,451 |
| 3 | Sun Valley | 43 | 18 | 0 | 17,000 |
| 4 | Las Vegas | 32 | 17 | 0 | 1,539,277 |
| 5 | Reno | 42 | 17 | 0 | 442,000 |
| 6 | Fernley | 28 | 17 | 1 | 23,064 |
| 7 | Dayton | 29 | 16 | 0 | 15,830 |
| 8 | Boulder City | 28 | 16 | 0 | 15,000 |
| 9 | Henderson | 28 | 15 | 0 | 336,534 |
| 10 | Nellis AFB | 25 | 15 | 0 | 1,002 |
| 11 | Carlin | 17 | 14 | 0 | 0 |
| 12 | Overton | 17 | 13 | 0 | 8,500 |
| 13 | Graeagle | 15 | 13 | 0 | 120 |
| 14 | Mesquite | 22 | 12 | 0 | 26,000 |
| 15 | Golconda | 16 | 12 | 0 | 60 |
| 16 | Jackpot | 13 | 11 | 0 | 1,240 |
| 17 | Glenbrook | 15 | 11 | 0 | 1,000 |
| 18 | Stateline | 15 | 11 | 0 | 0 |
| 19 | Winnemucca | 17 | 10 | 0 | 8,066 |
| 20 | Mcgill | 10 | 10 | 0 | 1,200 |
| 21 | Incline Village | 11 | 10 | 0 | 0 |
| 22 | Stagecoach | 17 | 9 | 1 | 1,628 |
| 23 | Sparks | 10 | 9 | 0 | 1,310 |
| 24 | Yerington | 15 | 9 | 0 | 340 |
| 25 | Pasadena | 10 | 9 | 0 | 250 |
| 26 | Palm Gardens | 10 | 9 | 0 | 42 |
| 27 | Silver Springs | 15 | 9 | 0 | 0 |
| 28 | Ely | 18 | 8 | 0 | 5,000 |
| 29 | West Wendover | 17 | 8 | 0 | 4,535 |
| 30 | Wellington | 9 | 8 | 0 | 1,545 |
| 31 | Zephyr Cove | 9 | 8 | 0 | 1,200 |
| 32 | Sloan | 12 | 8 | 0 | 60 |
| 33 | Battle Mountian | 14 | 8 | 0 | 0 |
| 34 | Gardnerville | 15 | 7 | 0 | 11,300 |
| 35 | Pahrump | 13 | 7 | 0 | 11,077 |
| 36 | Lovelock | 14 | 7 | 0 | 3,562 |
| 37 | Tonopah | 12 | 7 | 0 | 2,853 |
| 38 | Fallon | 7 | 7 | 0 | 1,500 |
| 39 | Austin | 10 | 7 | 0 | 350 |
| 40 | Jarbidge | 11 | 7 | 0 | 200 |
| 41 | Blue Diamond | 8 | 7 | 0 | 85 |
| 42 | Mountain City | 9 | 7 | 0 | 30 |
| 43 | Battle Mountain | 9 | 7 | 1 | 0 |
| 44 | Beatty | 11 | 7 | 0 | 0 |
| 45 | Spring Creek | 9 | 6 | 0 | 9,215 |
| 46 | Virgina City | 10 | 6 | 0 | 1,420 |
| 47 | Round Mountain | 14 | 6 | 0 | 1,200 |
| 48 | Lamoille | 7 | 6 | 0 | 200 |
| 49 | Orovada | 9 | 6 | 0 | 200 |
| 50 | Goldfield | 14 | 6 | 0 | 138 |
| 51 | Sandy Valley | 7 | 6 | 0 | 110 |
| 52 | Minden | 9 | 5 | 0 | 3,500 |
| 53 | Hawthorne | 9 | 5 | 0 | 2,700 |
| 54 | Verdi | 7 | 5 | 1 | 120 |
| 55 | Caliente | 7 | 5 | 0 | 0 |
| 56 | Wells | 9 | 4 | 0 | 1,300 |
| 57 | Panaca | 5 | 4 | 1 | 900 |
| 58 | Pioche | 8 | 4 | 0 | 700 |
| 59 | Cal-nev-ari | 5 | 4 | 1 | 375 |
| 60 | Gerlach | 10 | 4 | 0 | 350 |
| 61 | Eureka | 8 | 4 | 0 | 65 |
| 62 | Bluffdale | 6 | 4 | 0 | 46 |
| 63 | South Jordan | 6 | 4 | 0 | 30 |
| 64 | Indian Springs | 6 | 3 | 0 | 900 |
| 65 | Valmy | 4 | 3 | 0 | 96 |
| 66 | San Mateo | 6 | 3 | 0 | 60 |
| 67 | Alamo | 4 | 2 | 0 | 0 |
| 68 | Baker | 2 | 2 | 0 | 0 |
Recommended Filtration for Nevada
Based on the most common contaminants found across Nevada (Arsenic, Nitrate, Nitrate and nitrite), we recommend a reverse osmosis (RO) system — the only technology proven to remove heavy metals, PFAS, and most other contaminants to safe levels.
Echo RO System
Removes up to 99.9% of contaminants. The gold standard for drinking water in Nevada homes.
View RO SystemsEcho Whole-Home Filter
Protect every tap in your home from chlorine, VOCs, and disinfection byproducts.
View Whole-Home FiltersEcho Hydrogen Water Flask
Once your water is clean, supercharge it with molecular hydrogen for antioxidant and anti-inflammatory benefits.
Shop Hydrogen FlaskFrequently Asked Questions
Is Nevada tap water safe to drink?
Water quality varies significantly across Nevada. Of the 68 cities analyzed, the average city has 8.5 contaminants above EWG health guidelines. The best water quality was found in Alamo. We recommend checking your specific city's report for detailed information.
What city has the best water in Nevada?
Based on our analysis, Alamo has the fewest contaminants above EWG health guidelines in Nevada, with 2 above guideline levels.
What city has the worst water in Nevada?
Based on our analysis, Sun Valley has the most contaminants above EWG health guidelines in Nevada, with 18 above guideline levels.
What's the best water filter for Nevada residents?
For most Nevada households, we recommend a reverse osmosis (RO) system for drinking water and a whole-home filter for showers and baths. The specific recommendation depends on your city's contaminant profile — check your city's report for personalized guidance.
National Water Quality Reports
Data sources: Environmental Working Group (EWG) Tap Water Database, U.S. EPA Safe Drinking Water Information System (SDWIS)
Last updated: March 2026
Methodology: Contaminant levels are compared against both EPA legal limits (Maximum Contaminant Levels) and EWG health guidelines, which are often stricter and based on the latest scientific research.
