Las Vegas’s drinking water comes from Las Vegas Valley Water District (EPA system NV0000090), which buys treated surface water from a neighbouring wholesale system and distributes it locally for about 1,539,277 people. This page translates that system’s official EPA record — lead and copper results, violation history, and what the data does and does not say — into plain English.
This page is built entirely from the U.S. EPA’s Safe Drinking Water Information System (SDWIS), the same records state regulators use. We did not test Las Vegas’s water, and system-level data describes the utility’s water as a whole — not what comes out of one specific home’s tap. Where the record is silent, we say so rather than guess.
Key takeaways
- Las Vegas Valley Water District supplies Las Vegas (Purchased surface water); it serves about 1,539,277 people across its service area.
- Las Vegas Valley Water District’s most recent reported 90th-percentile lead result is 2.08 ppb, below the EPA action level of 15 ppb.
- No health-based violations in the last 10 years of EPA records for Las Vegas Valley Water District.
- EPA does not track hardness. If you’re shopping for a softener, test first and size from a real grains-per-gallon number.
The water system serving Las Vegas
Las Vegas Valley Water District is the community water system the EPA associates with Las Vegas, Nevada. It reports a population served of about 1,539,277. Its EPA source code is a purchased one: the system buys already-treated water from a neighbouring supplier rather than treating its own, which is common for suburbs and townships.
| System | EPA ID | People served | Source water | Role |
|---|---|---|---|---|
| Las Vegas Valley Water District | NV0000090 | 1,539,277 | Purchased surface water | Main system |
Not sure which system serves your address? Run your ZIP code through our What’s In My Water? lookup — it resolves the systems EPA lists for your ZIP and shows the same records in full.
Lead and copper
Lead: Las Vegas Valley Water District’s most recent reported 90th-percentile lead result is 2.08 ppb, below the EPA action level of 15 ppb.
Read those numbers carefully: a 90th percentile is a system-wide statistic from a sample of homes, not a test of your tap. Lead in drinking water comes mostly from a home’s own plumbing — service lines, solder and fixtures — so two houses on the same street can test very differently. Homes built before 1986 carry the highest risk, whatever the system average says.
Violation history — the last 10 years
EPA records show no health-based violations for Las Vegas Valley Water District in the last 10 years. Health-based violations are the serious kind: a contaminant over its legal limit, a skipped treatment step, or a disinfectant level above its maximum.
The recent paperwork record is clean too: no monitoring or reporting items in the last 5 years.
What this means for your home
System data sets the background; your home’s plumbing writes the foreground. In practice:
- Lead is a plumbing question, not a system alarm, here. The system’s own result is low, so the remaining risk sits in your home’s pipes and fixtures. A filter certified to NSF/ANSI 53 for lead is cheap insurance for older homes; our water filter guides explain the certifications without the marketing.
- Taste and smell: surface-water systems disinfect with chlorine or chloramine, which is most of what people taste. A basic carbon filter (NSF/ANSI 42) handles it; our chloramine vs chlorine explainer helps you tell which one your water has.
- Hardness is not in this record — by design. The EPA doesn’t track it, so nobody can honestly tell you your grains-per-gallon from this page. Scale on fixtures and shower doors is a hint, not a measurement. Test (strips are a start; a lab test is better — see how to test your water at home), then size any softener with our softener sizing calculator and the softener hub.
- On a private well instead of city water? None of this system’s record applies to your tap — start with our well water hub for the test-first approach.
Water quality in nearby cities
New York, NY · Los Angeles, CA · Houston, TX
This guide is one of our per-city water reports — see the full list on the Water Quality hub, alongside our contaminant explainers and testing guides.
Frequently asked questions
Is Las Vegas water safe to drink?
On the evidence in its EPA record, yes: Las Vegas Valley Water District has no health-based violations in the last 10 years, and its most recent 90th-percentile lead result was 2.08 ppb, below the EPA action level of 15 ppb. Health-based violations are the serious category — the contamination and treatment failures — so a clean 10-year record is the strongest signal the federal data offers. Two honest limits: EPA data describes the system as a whole, not your tap, and lead in particular usually comes from a home’s own plumbing — a certified home test is the only way to know your exact water.
Where does Las Vegas get its drinking water?
Las Vegas Valley Water District is the community water system the EPA associates with Las Vegas. It buys treated surface water from a neighbouring wholesale system and distributes it locally and serves about 1,539,277 people across its service area (EPA system ID NV0000090).
What is the lead level in Las Vegas’s water?
Las Vegas Valley Water District’s most recent reported 90th-percentile lead result is 2.08 ppb, below the EPA action level of 15 ppb. That figure is a system statistic from sampled homes, not a test of your tap — your own plumbing decides your exposure, and a certified home test is the only way to know it.
Has Las Vegas’s water system had violations?
No health-based violations appear for Las Vegas Valley Water District in the last 10 years of EPA records. Its recent monitoring and reporting record is clean as well.
Do I need a water filter in Las Vegas?
Nothing in Las Vegas Valley Water District’s EPA record points to a problem you must filter for. Most households here who filter do it for taste (a simple carbon filter) or for lead insurance in older plumbing (NSF/ANSI 53). If you shop, match the certification to the job — and measure hardness before considering a softener.
Source: U.S. EPA SDWIS via Envirofacts, retrieved November 12, 2026. System-level data describes the utility’s water, not any individual tap. If your water bill names a different system, that system’s record is the one that applies to you.