Tap water · NV
Las Vegas Valley Water District
EPA system ID NV0000090 · serves about 1,539,277 people. Every US utility must publish an annual water quality report — here’s the official one (2025), and below it, our plain-English translation.
Read the official report →What Las Vegas Valley Water District found in 2025
18 detected analytes from the utility’s own annual report, hand-normalized — 1 was near or over a limit (flagged below).
| Detected | Level | Limit | % of limit | Status |
|---|---|---|---|---|
| Total Trihalomethanes | 72 ppb | 80 ppb | 90% | Near limit |
| Radium 226 and Radium 228 (combined) | 3.7 pCi/L | 5 pCi/L | 74% | Within limit |
| Haloacetic Acids | 44 ppb | 60 ppb | 73% | Within limit |
| Copper (90th percentile) | 0.82 ppm | 1.3 ppm | 63% | Within limit |
| Nitrate | 5.3 ppm | 10 ppm | 53% | Within limit |
| Alpha Particles | 7.4 pCi/L | 15 pCi/L | 49% | Within limit |
| Bromate | 4.2 ppb | 10 ppb | 42% | Within limit |
| Arsenic | 4 ppb | 10 ppb | 40% | Within limit |
| Free Chlorine Residual | 0.99 ppm | 4 ppm | 25% | Within limit |
| Fluoride | 0.7 ppm | 4 ppm | 18% | Within limit |
| Lead (90th percentile) | 2.1 ppb | 15 ppb | 14% | Within limit |
| Uranium | 3.8 ppb | 30 ppb | 13% | Within limit |
| Selenium | 2.7 ppb | 50 ppb | 5% | Within limit |
| Barium | 0.1 ppm | 2 ppm | 5% | Within limit |
| Total Coliforms | 0.1 percent positive per month | 5 percent positive per month | 2% | Within limit |
| Lithium | 34 ppb (µg/L) | — | — | No federal limit |
| Perfluorohexanoic Acid (PFHxA) | 0.005 ppb (µg/L) | — | — | No federal limit |
| Perfluoropentanoic Acid (PFPeA) | 0.004 ppb (µg/L) | — | — | No federal limit |
Levels and limits are as printed in the utility’s report (“limit” is the EPA MCL, action level, residual limit, or secondary guideline that applies to that row; “ND” = not detected). Utilities publish these reports annually — we re-check every covered utility each July, after the federal publication deadline. Detected doesn’t mean dangerous — most detections sit far below their limits. This is education, not medical advice.
Zip codes covered
89101 · 89102 · 89103 · 89104 · 89106 · 89107 · 89108 · 89109 · 89110 · 89113 · 89117 · 89118 · 89119 · 89120 · 89121 · 89122 · 89123 · 89128 · 89129 · 89130 · 89131 · 89134 · 89135 · 89138 · 89139 · 89141 · 89142 · 89143 · 89144 · 89145 · 89146 · 89147 · 89148 · 89149 · 89156 · 89158 · 89166 · 89169 · 89178 · 89179 · 89183
Boundary zips partially served by other systems are deliberately unlisted — check your exact zip.