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WaterSafeCheck
Official EPA SDWIS Statewide AnalysisState Water Quality & Testing Directory

Nevada Drinking Water Quality & Testing Directory

Comprehensive EPA compliance records, water testing guidelines, and city rankings covering all 254 ZIP codes across Nevada

Quick Summary: Is Tap Water Safe in Nevada?

Drinking water in Nevada receives an average composite safety score of 80.6/100 based on EPA Safe Drinking Water Act records. Approximately 48% of monitored ZIP codes earn an "A" grade. Water sources are 63.4% surface water and 36.6% groundwater, resulting in Moderately Soft to Moderate mineral hardness across the state.

Total ZIP Codes

254

Health Violations (5yr)

122

Statewide Avg Score

80.6/100

High Lead Risk Areas

19.3%

Overview: Drinking Water in Nevada

Drinking water quality in Nevada averages a composite safety score of 80.6/100 across its 254 monitored ZIP codes. Approximately 48% of ZIP codes in the state receive an "A" grade, while 0% receive an "F" grade. Environmental standards are enforced by Nevada Division of Environmental Protection.

Surface Water

63.4%

of ZIP codes

Total Violations

691

5-year record

Grade A ZIPs

122

48% of state

Grade F ZIPs

0

0% of state

Water Quality Grade Distribution in Nevada

How do Nevada's 254 ZIP codes stack up by water quality grade?

A
122 ZIP codes48%
B
74 ZIP codes29%
C
33 ZIP codes13%
D
25 ZIP codes10%
F
0 ZIP codes0%

Popular Cities in Nevada

Click any city to view ZIP code-level water quality reports

Las Vegas

77 ZIPs

A

Reno

24 ZIPs

B

Henderson

12 ZIPs

A

North Las Vegas

10 ZIPs

A

Carson City

10 ZIPs

B

Sparks

6 ZIPs

B

Pahrump

4 ZIPs

B

Elko

4 ZIPs

B

The Lakes

3 ZIPs

C

Mesquite

3 ZIPs

A

Fallon

3 ZIPs

B

Incline Village

3 ZIPs

B

Boulder City

2 ZIPs

A

Indian Springs

2 ZIPs

A

Jean

2 ZIPs

A

Laughlin

2 ZIPs

A

Coyote Springs

2 ZIPs

C

Ely

2 ZIPs

C

Gardnerville

2 ZIPs

C

Winnemucca

2 ZIPs

B

Alamo

1 ZIP

C

Beatty

1 ZIP

B

Blue Diamond

1 ZIP

A

Bunkerville

1 ZIP

B

Caliente

1 ZIP

C

Dyer

1 ZIP

D

Goldfield

1 ZIP

B

Hiko

1 ZIP

D

Amargosa Valley

1 ZIP

D

Logandale

1 ZIP

B

Manhattan

1 ZIP

B

Mercury

1 ZIP

C

Moapa

1 ZIP

A

Cal Nev Ari

1 ZIP

C

Overton

1 ZIP

B

Panaca

1 ZIP

C

Pioche

1 ZIP

C

Round Mountain

1 ZIP

B

Searchlight

1 ZIP

A

Silverpeak

1 ZIP

D

City A-Z Directory — Nevada

Browse water quality reports for every town and city in Nevada.

A
AlamoAmargosa ValleyAustin
B
BakerBattle MountainBeattyBlue DiamondBoulder CityBunkerville
C
Cal Nev AriCalienteCarlinCarson CityCoyote SpringsCrescent ValleyCrystal Bay
D
DaytonDeethDenioDuckwaterDyer
E
ElkoElyEmpireEureka
F
FallonFernley
G
GabbsGardnervilleGenoaGerlachGlenbrookGolcondaGoldfield
H
HawthorneHendersonHiko
I
ImlayIncline VillageIndian Springs
J
JackpotJarbidgeJean
L
LamoilleLas VegasLaughlinLogandaleLovelockLundLuning
M
ManhattanMc DermittMc GillMercuryMesquiteMinaMindenMoapaMontelloMountain City
N
Nellis AfbNixonNorth Las Vegas
O
OrovadaOvertonOwyhee
P
PahrumpPanacaParadise ValleyPioche
R
RenoRound MountainRuby ValleyRuth
S
SchurzSearchlightSilver CitySilver SpringsSilverpeakSloanSmithSparksSpring CreekStatelineSun Valley
T
The LakesTonopahTuscarora
V
ValmyVerdiVirginia City
W
WadsworthWashoe ValleyWellingtonWellsWest WendoverWinnemucca
Y
Yerington
Z
Zephyr Cove

🏆 Highest Rated ZIP Codes in Nevada

89019Jean
99/100
A
89026Jean
99/100
A
89028Laughlin
99/100
A
89031North Las Vegas
99/100
A
89032North Las Vegas
99/100
A

⚠ Lowest Rated ZIP Codes in Nevada

89017Hiko
40/100
D
89314Duckwater
40/100
D
89317Lund
40/100
D
89318Mc Gill
40/100
D
89420Luning
40/100
D

Common Drinking Water Contaminants in Nevada

The following are common regulated contaminants found in Nevada drinking water based on EPA violation records. Click any contaminant to learn about EPA safety limits and health effects.

Contaminant 0700Consumer Confidence Report RuleStage 2 DBP RuleBariumCombined RadiumHaloacetic Acids (HAA5)

Source: EPA Safe Drinking Water Act Maximum Contaminant Level regulations. For the complete list of regulated contaminants and MCLs, see the Water Quality Safety Guide.

Frequently Asked Questions — Nevada Drinking Water

Is tap water generally safe to drink in Nevada?+
Yes, for the majority of residents, tap water in Nevada is treated and regulated. However, compliance varies by city. State-wide, 122 ZIP codes receive an "A" grade, while 0 receive an "F". Search your specific ZIP code to see your local utility's record.
How do I test water quality or well water in Nevada?+
Residents in Nevada can test their tap or well water by contacting laboratories certified by Nevada Division of Environmental Protection or ordering an EPA-standard laboratory water testing kit. Annual testing is recommended for private wells to test for bacteria, nitrates, and heavy metals.
What are the biggest water quality issues in Nevada?+
The primary issues include managing 122 health-based violations state-wide and resolving infrastructure age. 19.3% of ZIP codes in the state have a high probability of lead exposure risk due to pre-1986 piping.
Who regulates and enforces drinking water standards in Nevada?+
Drinking water in Nevada is regulated by Nevada Division of Environmental Protection under a primacy agreement with the U.S. EPA.
Where does Nevada get its drinking water?+
Approximately 63.4% of monitored areas in Nevada rely on surface water sources (lakes/rivers), while the rest use groundwater aquifers.
How do I find the official water quality report for my home in Nevada?+
Search your ZIP code on our site to view data compiled from EPA records, or contact your local utility for their annual Consumer Confidence Report (CCR).
View All 254 ZIP Codes in Nevada

Browse EPA water quality data for every monitored ZIP code. For faster results, use the search bar above.

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All 254 ZIP codes in Nevada are actively monitored under the EPA Safe Drinking Water Act.