WATER QUALITY NV 2 HEALTH VIOLATIONS

Clark County Water Quality: 8 Violations (NV)

10 water systems · 66 ZIP codes · Home Safety Score 92/100 (A) · 63 of 124 tracked ZIP records scored · Updated

Data: EPA Safe Drinking Water Information System (SDWIS), EPA ECHO Last verified:

92/100 (A)
Home Safety Score
10
Water Systems
8
Total Violations
2
Health-Based
66
ZIP Codes
556
Enforcement Actions

Violation Trend

EPA violations across water systems in Clark County.

2023
2025
Health-based Other violations

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Water Quality Overview

Clark County has 10 community water systems across 66 directly mapped ZIP records. The systems report serving approximately 2,330,879 people. The available records contain 8 EPA violations, including 2 health-based violations.

Health-based violations account for 25% of all violations in Clark County. These violations indicate contaminant levels that may pose direct risks to human health.

Violation Breakdown

Violation Type Count Percentage
Health-based 2 25.0%
Monitoring/Reporting 6 75.0%
Total 8 100%

Health-based violations indicate contaminant levels exceeding EPA Maximum Contaminant Levels (MCLs). Monitoring violations indicate failures to test or report.

Cities with Most Violations

Rank City Violations Health-Based ZIP Codes Population
1 Las Vegas 6 1 44 1,625,332
2 North Las Vegas 1 1 7 267,181
3 Overton 1 0 1 3,842

Violation Trend

Year-by-year EPA violations across water systems in Clark County:

Year Total Health-Based
2023 1 1
2025 57 57

Most Common Contaminants

Contaminant Category Violations ZIPs Affected Health-Based
Haloacetic Acids (HAA5) Disinfection Byproducts 3 3 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 1 1 No

Water Data and the Home Safety Score

This page reports EPA water-system facts without converting the broader Home Safety Score into a drinking-water grade. The county Home Safety grade (A) is a separate multi-source index that also requires PFAS screening, radon, and annual air-quality evidence. Check each ZIP report for the versioned score and its component coverage.

Water Systems in Clark County

Clark County is served by 10 community water systems, averaging 0.1 systems per ZIP code. Each system is independently regulated and tested by the EPA. Larger systems serving more people typically have more extensive monitoring requirements.

Water systems in Clark County source water from a mix of surface water (rivers, reservoirs) and groundwater (wells, aquifers). Source type affects which contaminants are most likely to be detected.

How to Check Your Water in Clark County

  1. Enter your ZIP code on ZipCheckup for detailed water-system data including contaminant levels and violation history; the Home Safety Score is shown separately with its model version

  2. Request your CCR — every water utility must provide an annual Consumer Confidence Report

  3. Get a home test — certified kits ($20-$50) or professional lab tests ($150-$400) can detect contaminants not covered by routine testing

  4. Consider filtration — NSF-certified filters can address specific contaminants found in your area

  5. Check for lead — homes built before 1986 should test for lead regardless of utility compliance

EPA Enforcement

The EPA and state regulators have taken 556 enforcement actions against water systems in Clark County. Enforcement actions range from compliance assistance and administrative orders to formal penalties. Systems under enforcement are required to remediate violations and may face ongoing monitoring requirements.

Data Sources

Source publication schedules vary. See the page source and verification fields for available timing evidence.

Water Quality by ZIP Code in Clark County

Water quality varies across Clark County's 66 ZIP codes. Check your specific ZIP for detailed contaminant data.

ZIP Code City Violations Health
89107 Las Vegas 3 0 View →
89121 Las Vegas 2 0 View →
89040 Overton 1 0 View →
89081 North Las Vegas 1 1 View →
89115 Las Vegas 1 1 View →
89002 Henderson 0 0 View →
89005 Boulder City 0 0 View →
89011 Henderson 0 0 View →
89012 Henderson 0 0 View →
89014 Henderson 0 0 View →
89015 Henderson 0 0 View →
89027 Mesquite 0 0 View →
89029 Laughlin 0 0 View →
89030 North Las Vegas 0 0 View →
89031 North Las Vegas 0 0 View →
89032 North Las Vegas 0 0 View →
89034 Mesquite 0 0 View →
89044 Henderson 0 0 View →
89052 Henderson 0 0 View →
89074 Henderson 0 0 View →
89084 North Las Vegas 0 0 View →
89085 North Las Vegas 0 0 View →
89086 North Las Vegas 0 0 View →
89101 Las Vegas 0 0 View →
89102 Las Vegas 0 0 View →
89103 Las Vegas 0 0 View →
89104 Las Vegas 0 0 View →
89106 Las Vegas 0 0 View →
89108 Las Vegas 0 0 View →
89109 Las Vegas 0 0 View →
89110 Las Vegas 0 0 View →
89113 Las Vegas 0 0 View →
89117 Las Vegas 0 0 View →
89118 Las Vegas 0 0 View →
89119 Las Vegas 0 0 View →
89120 Las Vegas 0 0 View →
89122 Las Vegas 0 0 View →
89123 Las Vegas 0 0 View →
89124 Las Vegas 0 0 View →
89128 Las Vegas 0 0 View →
89129 Las Vegas 0 0 View →
89130 Las Vegas 0 0 View →
89131 Las Vegas 0 0 View →
89134 Las Vegas 0 0 View →
89135 Las Vegas 0 0 View →
89138 Las Vegas 0 0 View →
89139 Las Vegas 0 0 View →
89141 Las Vegas 0 0 View →
89142 Las Vegas 0 0 View →
89143 Las Vegas 0 0 View →
89144 Las Vegas 0 0 View →
89145 Las Vegas 0 0 View →
89146 Las Vegas 0 0 View →
89147 Las Vegas 0 0 View →
89148 Las Vegas 0 0 View →
89149 Las Vegas 0 0 View →
89156 Las Vegas 0 0 View →
89158 Las Vegas 0 0 View →
89166 Las Vegas 0 0 View →
89169 Las Vegas 0 0 View →
89179 Las Vegas 0 0 View →
89183 Las Vegas 0 0 View →
89191 Nellis Afb 0 0 View →
89054 Sloan 0 0 View →
89161 Las Vegas 0 0 View →
89178 Las Vegas 0 0 View →

Water facts and the Home Safety Score

The score shown here is the broader Home Safety Score, not a water-quality grade. Model 4.0.0 combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, PFAS screening, radon zones, and annual air-quality evidence. Clark County has a score of 92/100 (Grade A) across 63 scored of 124 tracked ZIP records.

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Frequently Asked Questions

Is the tap water safe in Clark County, Nevada?

Clark County has 10 community water systems with 8 recorded EPA violations, including 2 health-based. Water quality varies by ZIP code - check your specific location for detailed results.

How many water violations does Clark County have?

Clark County has 8 total EPA violations across 66 directly mapped ZIP records. 2 are health-based.

Which city in Clark County has the most water violations?

Las Vegas has the most violations in Clark County with 6 recorded EPA violations across 44 ZIP codes.

What contaminants are found in Clark County water?

Clark County water systems are monitored for over 90 EPA-regulated contaminants including lead, copper, nitrates, disinfection byproducts, and bacteria. Check your ZIP code for contaminant-specific data.

How can I test my water in Clark County?

Contact your local water utility for free or low-cost testing. You can also use a certified home test kit ($20-$50) or hire a certified lab ($150-$400).

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