Henderson, NV: 12 Violations — 94/100 (2026)
12 ZIP codes · 6 water systems · Updated 2026-06-04
EPA compliance records for Henderson tell a largely clear story: violation rates are low, health-based exceedances are uncommon, and the city's grade puts it well above average within NV.
How Henderson Compares
Data: EPA SDWIS Last verified: 2026-06-04
Water Quality Map: Henderson, NV
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
How ZIP codes in Henderson score across all safety grades.
What You Should Know About Henderson Water
- Your city's water systems recorded 12 violations in the past 5 years.
- Average lead level: 0.0038 mg/L.
- Homes built before 1986: 14% — older plumbing may contain lead solder.
- Estimated remediation: $1,286 per household.
- CDC health risk index: 12.48 — above typical levels.
Who Supplies Your Water in Henderson
Residential water service in Henderson, NV is divided among 3 separate utilities, drawn from 6 systems on file with federal regulators.
Overview
We track water quality and home safety data for 12 ZIP codes in Henderson, Nevada (population ~336,833), covering 6 community water systems serving approximately 1,876,180 people region-wide.
12 of 12 ZIP codes (100%) have recorded EPA violations. All violations are monitoring/reporting type.
Home Safety Score
Average Home Safety Score for Henderson: A (94/100)
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
Henderson water systems draw from: Groundwater, Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0038 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): 12 ZIP codes
Top Contaminants
| Contaminant | Category | Violations | ZIPs Affected |
|---|---|---|---|
| Lead | Inorganic | 13 | 12 |
Areas with Most Violations
| ZIP Code | Safety Score | Violations | Health-Based | System |
|---|---|---|---|---|
| 89002 | A | 1 | 0 | City of Henderson |
| 89009 | A | 1 | 0 | City of Henderson |
| 89011 | A | 1 | 0 | City of Henderson |
| 89012 | A | 1 | 0 | City of Henderson |
| 89014 | A | 1 | 0 | City of Henderson |
| 89015 | A | 1 | 0 | City of Henderson |
| 89016 | A | 1 | 0 | City of Henderson |
| 89044 | A | 1 | 0 | City of Henderson |
| 89052 | A | 1 | 0 | City of Henderson |
| 89053 | A | 1 | 0 | City of Henderson |
All ZIP Codes in Henderson
- 89002 [A] — 1 violation
- 89009 [A] — 1 violation
- 89011 [A] — 1 violation
- 89012 [A] — 1 violation
- 89014 [A] — 1 violation
- 89015 [A] — 1 violation
- 89016 [A] — 1 violation
- 89044 [A] — 1 violation
- 89052 [A] — 1 violation
- 89053 [A] — 1 violation
- 89074 [A] — 1 violation
- 89077 [A] — 1 violation
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.
Health Outcomes in Henderson
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
Top Contaminants in Henderson Water
Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.
Housing & Infrastructure in Henderson
Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
Lead exposure in tap water isn't just a function of what water utilities deliver — it's also shaped by the plumbing inside individual homes. Structures built before 1986 may contain lead-soldered copper joints, and homes built before 1970 face an additional risk from lead pipes themselves. Henderson's median build year of 2000 suggests the housing stock is broadly weighted toward the safer post-1986 era, but the age distribution shown above makes clear that the pre-1986 share of the inventory still represents a meaningful fraction worth understanding for anyone in an older home.
Most homes in Henderson were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.
Source: U.S. Census Bureau ACS B25034.
Cost Context: What Remediation Means for Henderson Homeowners
When estimated remediation is placed alongside median property values in Henderson, the resulting ratio is low — a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.
Remediation costs in Henderson are relatively low compared to home values. The $857–$1,900 estimated range is a small fraction of median property value. Home values are 13% above the Nevada average.
Lead Exposure Risk for Children in Henderson
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.
Aggregate sampling rests beneath the federal action threshold here, while only 14% of Henderson housing predates the solder rule change.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Henderson
Taken together, Henderson's 59 NFIP flood insurance claims and 50% FEMA flood zone coverage place it in the moderate range of exposure. That middle position has specific implications for water quality. The contamination pathways that flooding can open — surface water overwhelming treatment facility intake, floodwaters infiltrating private wells, distribution pressure changes creating backflow — are not constant risks in a moderate-exposure community. But they do become active during significant flood events, and the claim record here indicates enough of those events to make flood timing an occasional factor in local water quality conversations.
Henderson has a moderate flood history with 59 FEMA claims averaging $2,351 per payout. 50% 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>$1,286</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 Henderson, NV