States › Nevada

Nevada Tap Water Quality 2026

EPA drinking water data for 107 cities across Nevada — covering lead levels, violation history, and compliance status.

Systems tracked: 85 Cities covered: 107 Updated: 2026 Q2
B

Nevada earns a B for overall water quality

107 communities across 17 counties and 85 water systems. 92.5% have no open violations.

Median lead where detected: 1.90 ppb
32.1% of systems report lead as not detected — a state filing convention, not a water quality measure
PFAS tested at 45.8% of communities; 7 above the federal limit
Lead reported for 99.1% of communities
92.5% of communities have no open violations
Water Systems
85
Active community systems
Median Lead Level
1.9 ppb
13% of EPA action level
Fully Compliant
92.5%
of systems — no active violations
How we grade states Grades are based on actual EPA enforcement data — MCL violations and lead levels measured against the 15 ppb federal action level. We do not use MCLG-based detections, which are aspirational zero-tolerance goals that would make nearly every state look dangerous. Read our full methodology →

Best & Worst Cities in Nevada

✓ Cleanest Water
East Valley
Douglas County
1.7 ppb A
Moapa Town
Clark County
No data B
Las Vegas
Clark County
2.1 ppb A
Enterprise
Clark County
2.1 ppb A
Spring Valley
Clark County
2.1 ppb A
Paradise
Clark County
2.1 ppb A
⚠ Needs Attention
Sutcliffe
Washoe County
3.0 ppb F
Wadsworth
Washoe County
1.0 ppb D
Schurz
Mineral County
1.0 ppb D
Walker Lake
Mineral County
0.8 ppb D
Nixon
Washoe County
1.0 ppb D
Fort McDermitt
Humboldt County
1.0 ppb D

Water Quality by County

17 of 17
Sort:
CountySystemsLead LevelViolationsGrade
Clark County 22 2.1 ppb 0 A
Douglas County 18 1.0 ppb 0 A
Washoe County 16 1.4 ppb 0 C
Elko County 10 3.0 ppb 0 B
Lyon County 6 1.9 ppb 0 B
Humboldt County 5 3.0 ppb 0 C
White Pine County 4 2.3 ppb 0 B
Nye County 4 1.4 ppb 0 A
Mineral County 4 1.0 ppb 0 C
Lincoln County 4 3.0 ppb 0 A

About Nevada Drinking Water

Nevada is served by 85 community water systems covering 107 communities across 17 counties. 92.5% have no open violation on record.

Lead was detected in 72 communities, with a median of 1.90 ppb — 13% of the federal action level. A further 34 reported none detected. That share is a state reporting convention rather than a measure of water quality, so it is stated separately rather than averaged in.

PFAS has been tested at 45.8% of communities here, and 7 are above the limits EPA set in 2024. Coverage matters: states that test more find more, so this figure is not comparable with a state that has tested less.

Frequently Asked Questions

Is Nevada tap water safe to drink? ▼
92.5% of communities have no open violation on record. 7 have PFAS above the federal limit set in 2024, which is the main open concern.
Does Nevada have a lead problem? ▼
2 water systems report a 90th-percentile lead result at or above the 15 ppb action level. The action level is a treatment trigger, not a legal maximum, and 34 communities report no detection at all.
How complete is the data for Nevada? ▼
Lead results are reported for 99.1% of communities and PFAS for 45.8%. Where a figure is missing it is shown as not reported rather than assumed safe.
How does Nevada compare with other states? ▼
We do not rank states against each other. Lead reporting completeness ranges from under 20% to 100% depending on the state, so a national ranking would compare filing practice rather than water quality.