Las Vegas, NV: 77 Health Violations — 91/100 (2026)
77 ZIP codes · 8 water systems · Updated 2026-06-03
How does Las Vegas tap water hold up under EPA scrutiny? Above average for NV — documented violations are uncommon and the safety grade reflects a clean overall record.
How Las Vegas Compares
Data: EPA SDWIS Last verified: 2026-06-03
Water Quality Map: Las Vegas, NV
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Distribution of water safety grades across Las Vegas.
Las Vegas Water: The Quick Version
- Your city's water systems recorded 308 violations in the past 5 years.
- Average lead level: 0.0021 mg/L.
- Estimated remediation: $1,299 per household.
- CDC health risk index: 12.48 — above typical levels.
Water Systems Serving Las Vegas
Residential water in Las Vegas, NV is supplied by 3 separate utilities — not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 8 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track water quality and home safety data for 77 ZIP codes in Las Vegas, Nevada, covering 8 community water systems serving approximately 1,625,332 people.
77 of 77 ZIP codes (100%) have recorded EPA violations. 77 health-based violations documented.
Home Safety Score
Average Home Safety Score for Las Vegas: A (91/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Las Vegas water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0021 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 0 ZIP codes
- Zone 3 (Low): 77 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Total Trihalomethanes (TTHM) | Disinfection Byproducts | 78 | 77 |
| Surface Water Treatment Rule | Treatment Technique | 78 | 77 |
| Consumer Confidence Report Rule | Reporting | 78 | 77 |
| Contaminant 0700 | Other | 78 | 77 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 89101 | A | 4 | 1 | Las Vegas Valley Water District |
| 89102 | A | 4 | 1 | Las Vegas Valley Water District |
| 89103 | A | 4 | 1 | Las Vegas Valley Water District |
| 89104 | A | 4 | 1 | Las Vegas Valley Water District |
| 89105 | A | 4 | 1 | Las Vegas Valley Water District |
| 89106 | A | 4 | 1 | Las Vegas Valley Water District |
| 89107 | A | 4 | 1 | Las Vegas Valley Water District |
| 89108 | A | 4 | 1 | Las Vegas Valley Water District |
| 89109 | A | 4 | 1 | Las Vegas Valley Water District |
| 89110 | A | 4 | 1 | Las Vegas Valley Water District |
All ZIP Codes in Las Vegas
- 89101 [A] — 4 violations ⚠
- 89102 [A] — 4 violations ⚠
- 89103 [A] — 4 violations ⚠
- 89104 [A] — 4 violations ⚠
- 89105 [A] — 4 violations ⚠
- 89106 [A] — 4 violations ⚠
- 89107 [A] — 4 violations ⚠
- 89108 [A] — 4 violations ⚠
- 89109 [A] — 4 violations ⚠
- 89110 [A] — 4 violations ⚠
- 89111 [A] — 4 violations ⚠
- 89112 [A] — 4 violations ⚠
- 89113 [A] — 4 violations ⚠
- 89114 [A] — 4 violations ⚠
- 89115 [A] — 4 violations ⚠
- 89116 [A] — 4 violations ⚠
- 89117 [A] — 4 violations ⚠
- 89118 [A] — 4 violations ⚠
- 89119 [A] — 4 violations ⚠
- 89120 [A] — 4 violations ⚠
- 89121 [A] — 4 violations ⚠
- 89122 [A] — 4 violations ⚠
- 89123 [A] — 4 violations ⚠
- 89124 [A] — 4 violations ⚠
- 89125 [A] — 4 violations ⚠
- 89126 [A] — 4 violations ⚠
- 89127 [A] — 4 violations ⚠
- 89128 [A] — 4 violations ⚠
- 89129 [A] — 4 violations ⚠
- 89130 [A] — 4 violations ⚠
- 89131 [A] — 4 violations ⚠
- 89132 [A] — 4 violations ⚠
- 89133 [A] — 4 violations ⚠
- 89134 [A] — 4 violations ⚠
- 89135 [A] — 4 violations ⚠
- 89136 [A] — 4 violations ⚠
- 89137 [A] — 4 violations ⚠
- 89138 [A] — 4 violations ⚠
- 89139 [A] — 4 violations ⚠
- 89140 [A] — 4 violations ⚠
- 89141 [A] — 4 violations ⚠
- 89142 [A] — 4 violations ⚠
- 89143 [A] — 4 violations ⚠
- 89144 [A] — 4 violations ⚠
- 89145 [A] — 4 violations ⚠
- 89146 [A] — 4 violations ⚠
- 89147 [A] — 4 violations ⚠
- 89148 [A] — 4 violations ⚠
- 89149 [A] — 4 violations ⚠
- 89150 [A] — 4 violations ⚠
- 89151 [A] — 4 violations ⚠
- 89152 [A] — 4 violations ⚠
- 89153 [A] — 4 violations ⚠
- 89154 [A] — 4 violations ⚠
- 89155 [A] — 4 violations ⚠
- 89156 [A] — 4 violations ⚠
- 89157 [A] — 4 violations ⚠
- 89158 [A] — 4 violations ⚠
- 89159 [A] — 4 violations ⚠
- 89160 [A] — 4 violations ⚠
- 89161 [A] — 4 violations ⚠
- 89162 [A] — 4 violations ⚠
- 89164 [A] — 4 violations ⚠
- 89165 [A] — 4 violations ⚠
- 89166 [A] — 4 violations ⚠
- 89169 [A] — 4 violations ⚠
- 89170 [A] — 4 violations ⚠
- 89173 [A] — 4 violations ⚠
- 89177 [A] — 4 violations ⚠
- 89178 [A] — 4 violations ⚠
- 89179 [A] — 4 violations ⚠
- 89180 [A] — 4 violations ⚠
- 89183 [A] — 4 violations ⚠
- 89185 [A] — 4 violations ⚠
- 89193 [A] — 4 violations ⚠
- 89195 [A] — 4 violations ⚠
- 89199 [A] — 4 violations ⚠
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Las Vegas
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Key Contaminants Detected in Las Vegas
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Las Vegas: Remediation Cost in Perspective
In Las Vegas, property values comfortably outpace what documented remediation typically costs — the equity share is proportionally low.
Remediation costs in Las Vegas are relatively low compared to home values. The $801–$2,100 estimated range is a small fraction of median property value. Home values are 3% above the Nevada average.
Protecting Children from Lead in Las Vegas
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Lead risk in Las Vegas appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Las Vegas
A moderate NFIP record for Las Vegas — 469 insurance claims paired with 47% of ZIP codes in FEMA flood zones — points to a flood history where water-quality pathways have likely been periodically relevant.
Las Vegas has a moderate flood history with 469 FEMA claims averaging $13,493 per payout. 47% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,299</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
Deep Dive Reports
Detailed analysis for Las Vegas, NV