Water Around

Nevada

Water in Las Vegas, NV

Clark County, Nevada · City overview · Page updated 2026-10-20

PFAS testing · samples through 2025-12-30

Local water overview

Water summary

Where Las Vegas gets its water

Las Vegas Valley Water District is the likely provider for the mapped location in Las Vegas. Check your utility bill to confirm service at your address. The sources below describe the supply network; they do not establish water quality at your tap.

Watershed
Las Vegas Wash

Public drinking-water record

Drinking water in Las Vegas

Las Vegas Valley Water District is listed for this area. Check your utility bill to confirm who supplies your home. These are public water-system records, not a test of the tap water at your home.

PFAS testing in Las Vegas’s drinking water

4 PFAS sample results had reported detections. Most recent PFAS sample shown here: .

PFOA

Not detected above reporting limit

Sample date
Reporting limit
0.004 µg/L
Sample ID
380-190172-1

PFOS

Not detected above reporting limit

Sample date
Reporting limit
0.004 µg/L
Sample ID
380-190172-1

PFHxA

0.0056 µg/L

Sample date
Reporting limit
0.003 µg/L
Sample ID
380-167550-3

Selected latest compound samples from the published federal system record. Multiple sample points may share a date. A detection does not establish a violation. A non-detection does not mean PFAS-free. PFOA and PFOS limits and regulatory context are separate from these historical samples.

Lead and copper

Lead: 0.00208 mg/L, period ending 2025-12-31. These are system 90th-percentile results, not individual household concentrations.

Drinking-water compliance

No current violations flagged; past records available. 0 current flags and 49 historical records in the federal publication dated September 1, 2026. Historical records are not all active violations.

EPA UCMR5 source and sampling program · EPA ECHO compliance and lead/copper records · Testing and source records for Las Vegas Valley Water District

U.S. Drought Monitor ·

Drought around this place

This is the latest drought map in this publication, effective 2026-10-13; it is not a live report.

Clark County, Nevada: 99.98% of county area in D1 or worse; 100% in D0 or worse. D0 means abnormally dry. On 2026-10-06, D1 or worse covered 100%.

County area shares at or above each severity: D2 1.58% · D3 0% · D4 0%. These cumulative percentages overlap and must not be added. County conditions do not describe every point in a city or a drinking-water restriction.

Nevada drought and water context

Open the drought map and historical playback · U.S. Drought Monitor source

Loading the local water map…

Drought, streams, rainfall & wells

Latest water conditions

Read each measure with its date. Rainfall, streams and groundwater can change at different rates.

Drought

Severe drought

Severe drought

Severe drought affects part of the county; this is county context, not an exact city boundary.

Older report · 2026-10-13U.S. Drought Monitor

Published or effective 2026-10-13. Water Around last checked 2026-10-20T12:00:15.835637+00:00. This report may not describe conditions today.

Map effective 2026-10-13

Streamflow

Near seasonal range

Near seasonal range

Flow at this gauge was within its usual range for the season.

Older report · 2026-10-19USGS daily mean discharge

Published or effective 2026-10-19. Water Around last checked 2026-10-20T11:59:36.282Z. This report may not describe conditions today.

Higher than 36.5% of historical daily flows for this season

Recent rainfall

1.488 inches in 30 days

1.488 inches in 30 days

431% above the 1991–2020 station normal for this period.

Older report · 2026-10-17NOAA station observations

Published or effective 2026-10-17. Water Around last checked 2026-10-20T11:59:53.237Z. This report may not describe conditions today.

Through 2026-10-17

Groundwater

Method developing

Monitoring is available

Measurements are available at nearby wells. An overall groundwater condition is not calculated from them.

5 nearby monitoring wells

Your public water system

Las Vegas Valley Water District

The mapped location falls within this system’s EPA service area. Confirm service to your home with the utility.

Local compliance cacheA local summary of reported violations is not available here. When federal records are available, you can read them in the drinking-water section above. Neither source is a live test of water at your tap.

Your watershed

City of Las Vegas-Las Vegas Wash

A watershed is the land area where rain and streams drain toward a shared outlet. It helps explain natural water conditions, but it may not match the area supplying your tap.

Local watershed
City of Las Vegas-Las Vegas Wash
Broader basin
Las Vegas Wash

History

How water conditions in Las Vegas have changed

We do not have historical measurements to show here. This does not mean monitoring has never taken place.

History coverage

Las Vegas, NV

Historical measurements are not available here.

Below ground

Groundwater near Las Vegas

Aquifers can supply water; monitoring wells measure water levels at individual sites. One well does not describe an entire aquifer or your household well.

Reading well data

What well measurements can tell you

A well’s water level does not tell us how much water an aquifer holds. Pumping totals alone do not show depletion, and a surface map does not show the aquifer’s full underground extent. To understand water quality in a private well, use tests from that well and local guidance.

Discovery

Compare nearby and related places

These places share geography or comparable data. Their water conditions may differ.

Rivers, lakes & drinking water

Water testing and assessments

Explore river and lake assessments, measurements taken nearby, drinking-water tests and dams. Each tells you something different about the area.

Official surface-water assessments

Assessment results vary

5 EPA water assessments are linked to this local watershed (HUC12).

2 supporting3 impaired0 unknown
See assessed waters and official status
Counts are assessment-unit records associated with the HUC12. They are not area weighted and do not describe every waterbody.
Monitoring activity
610 sites0 observations0 characteristics

Water Quality Portal measurements from the surrounding area. More measurements can mean more monitoring—not worse water.

This bounded discovery is not the complete historical record and absence is not evidence of clean water.
UCMR5 PFAS monitoring

54 reported detections

Across 1,770 compound results and 59 samples for this water system.

Detection is not the same as violation.A reported detection is not, by itself, a drinking-water violation or a statement about a household tap. EPA states UCMR results do not indicate compliance or noncompliance with PFAS MCLs.
See reported detection examples

lithium39.3 µg/L · sampled 3/6/2025

lithium42.2 µg/L · sampled 5/15/2025

lithium41.1 µg/L · sampled 8/26/2025

lithium41.2 µg/L · sampled 11/24/2025

lithium40.7 µg/L · sampled 3/12/2025

lithium42.1 µg/L · sampled 5/12/2025

lithium27.5 µg/L · sampled 8/19/2025

lithium41 µg/L · sampled 11/10/2025

Nearby dam inventory

91 nearby dam records

These dams are nearby, but may not supply your drinking water. Hazard potential describes the consequences of a failure; condition describes the dam itself.

Meadows Detention Basin Dam →2.45 mi away · NV00233HazardHighConditionFair
Carey/Lake Mead Detention Basin Dam →3 mi away · NV10150HazardHighConditionPoor
Cheyenne Peaking Detention Basin Dam →3.77 mi away · NV10584HazardHighConditionPoor
Oakey Detention Dam →5.51 mi away · NV10156HazardHighConditionUnsatisfactory
Rainbow Detention Basin Dam →5.79 mi away · NV10730HazardSignificantConditionFair
Nearby dams are geographic context only, not inferred municipal supplies.

Waters around you

Rivers and lakes near Las Vegas

Nearby rivers and lakes from USGS maps. Proximity does not establish a drinking-water source, public access or shared water conditions.

We have no named river or lake to show in this area yet.

Smaller streams may still be present. This catalog does not include every waterbody.

Water sources

Where Las Vegas's water comes from

Las Vegas Valley Water District receives water from Southern Nevada Water Authority, according to the source records.

The links show sources and suppliers, not the amount being delivered today. Select one for its source record.

Some sources identifiedSource coverage does not measure water quality or reliability.

Your water system

Who supplies it

Further upstream

Upstream sources · step 3

Sources and relationships as a list

Documented current sources or suppliers for Las Vegas Valley Water District include Southern Nevada Water Authority. A relationship does not by itself establish the current delivered amount.

  1. Las Vegas Valley Water District supplied by Southern Nevada Water Authority. Current. The relationship is documented; a current delivered amount is not available.
  2. Southern Nevada Water Authority uses groundwater from Las Vegas Valley groundwater basin. Current. actual source share: 10 percent, current utility description (actual).
  3. Southern Nevada Water Authority draws from Lake Mead. Current. actual source share: 90 percent, current utility description (actual).
  4. Lake Mead stores water from Colorado River. Current. The relationship is documented; a current delivered amount is not available.
Water source types explained

Surface waterWater drawn from rivers, lakes, or reservoirs.

GroundwaterWater pumped from aquifers—bodies of rock or sediment that store and transmit groundwater, not underground lakes.

Wholesale waterA regional supplier can supply your local provider without serving your household directly.

Imported waterYour drinking-water source basin can differ from the watershed where you live.

Water AroundExplore your local water, with sources you can check.