Water Around

Arizona

Water in Phoenix, AZ

Maricopa County, Arizona · City overview · Page updated 2026-10-20

PFAS testing · samples through 2023-12-27

Local water overview

Water summary

Where Phoenix gets its water

Phoenix Water Services is the likely provider for the mapped location in Phoenix. 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.

Likely water system
Phoenix Water Services →
Watershed
Lower Salt

Public drinking-water record

Drinking water in Phoenix

Phoenix Water Services 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 Phoenix’s drinking water

18 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
2023101618

PFOS

Not detected above reporting limit

Sample date
Reporting limit
0.004 µg/L
Sample ID
2023101618

PFBS

0.016 µg/L

Sample date
Reporting limit
0.003 µg/L
Sample ID
2023084651

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: 0.00274 mg/L, period ending 2024-12-31. These are system 90th-percentile results, not individual household concentrations.

Drinking-water compliance

No current violations flagged; past records available. 0 current flags and 75 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 Phoenix Water Services

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.

Maricopa County, Arizona: 78.55% of county area in D1 or worse; 100% in D0 or worse. D0 means abnormally dry. On 2026-10-06, D1 or worse covered 81.13%.

County area shares at or above each severity: D2 31.72% · 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.

Arizona 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 39.8% of historical daily flows for this season

Recent rainfall

1.039 inches in 30 days

1.039 inches in 30 days

96% 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 2026-10-20T11:59:38.371Z. 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

Phoenix Water Services

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

Phoenix Water Services →AZ0407025 · community

Local compliance cacheA reporting-period record is available for this system. 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 Phoenix-Salt River

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 Phoenix-Salt River
Broader basin
Lower Salt

History

How water conditions in Phoenix have changed

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

History coverage

Phoenix, AZ

Historical measurements are not available here.

Below ground

Groundwater near Phoenix

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

Groundwater sources

Phoenix Active Management Area aquifers

A documented groundwater source for the public-water network serving Phoenix.

This source has not been matched to a national aquifer map.

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.

Arizona water planning

Water planning in Phoenix

Phoenix draws on Colorado River water through the Central Arizona Project, Salt and Verde River supplies, and groundwater. Groundwater planning follows the Phoenix Active Management Area.

Partial records

Supply

About these records

These details come from official state plans and reports. A planning estimate describes what may be needed or supplied, not what was measured today.

Measure
Assured supply
Reporting period
Plan cycle
Partial records

Demand

About these records

These details come from official state plans and reports. A planning estimate describes what may be needed or supplied, not what was measured today.

Measure
Reported use
Reporting period
Plan cycle
State records

Groundwater

About these records

These details come from official state plans and reports. A planning estimate describes what may be needed or supplied, not what was measured today.

Measure
Groundwater
Reporting period
Plan cycle
State records

Water planning

About these records

These details come from official state plans and reports. A planning estimate describes what may be needed or supplied, not what was measured today.

Measure
Assured supply
Reporting period
Plan cycle
Partial records

Water rights

About these records

These details come from official state plans and reports. A planning estimate describes what may be needed or supplied, not what was measured today.

Measure
Water rights
Reporting period
Plan cycle
Partial records

Imported water

About these records

These details come from official state plans and reports. A planning estimate describes what may be needed or supplied, not what was measured today.

Measure
Imported water
Reporting period
Plan cycle

Water planning regions

Phoenix Active Management AreaActive management area
Sources and limitations

These pages show Central Arizona Project supply connections, not live delivery amounts. A 100-year assured-supply finding is not a guarantee of uninterrupted supply.

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

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

1 supporting0 impaired1 unknown
See assessed waters and official status
Salt River, from 23RD AVENUE WWTP to GILA RIVERgood · reporting cycle 2026

Fully Supporting

EPA waterbody record
Counts are assessment-unit records associated with the HUC12. They are not area weighted and do not describe every waterbody.
Monitoring activity
3,593 sites107,300 observations152 characteristics

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

metals minerals 522nutrients 274organics pesticides 21,835pfas 3,487salinity basic chemistry 6,084unclassified 75,098
See recent measurement examples

BenzeneNot Detected · 2026-06-03

Perfluoro-3,6-dioxaheptanoic acidNot Detected · 2026-06-03

1,1-DichloropropeneNot Detected · 2026-06-03

CFC-12Not Detected · 2026-06-03

Tetrachloroethylene40.6 ug/L · 2026-06-03

Perfluoroheptanoic acid4.8 ng/L · 2026-06-03

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

71 reported detections

Across 1,565 compound results and 158 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

lithium70.8 µg/L · sampled 1/3/2023

lithium134 µg/L · sampled 4/13/2023

PFBS0.01 µg/L · sampled 4/13/2023

lithium115 µg/L · sampled 7/24/2023

PFBS0.009 µg/L · sampled 7/24/2023

PFBA0.005 µg/L · sampled 7/24/2023

PFBS0.014 µg/L · sampled 10/24/2023

lithium157 µg/L · sampled 10/24/2023

Nearby dam inventory

39 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.

Rio Salado Town Lake →7.26 mi away · AZ00236HazardSignificantConditionSatisfactory
Guadalupe →7.91 mi away · AZ00168HazardHighConditionSatisfactory
Dreamy Draw →8.24 mi away · AZ10006HazardHighConditionSatisfactory
East Park →9.06 mi away · AZ00112HazardHighConditionSatisfactory
West Park →9.47 mi away · AZ00111HazardHighConditionSatisfactory
Nearby dams are geographic context only, not inferred municipal supplies.

Waters around you

Rivers and lakes near Phoenix

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 Phoenix's water comes from

Phoenix Water Services receives water from Phoenix Active Management Area aquifers, Central Arizona Project, and Salt River Project, according to the source records.

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

Sources traced upstreamSource coverage does not measure water quality or reliability.
Planned projects are never shown as operating sources.

Your water system

Sources and suppliers

Further upstream

Sources and relationships as a list

Colorado River water delivered through the Central Arizona Project is one of several documented sources serving Phoenix. Other sources include the Salt and Verde river system and groundwater.

  1. Phoenix Water Services uses groundwater from Phoenix Active Management Area aquifers. Current. actual source share: 2 percent, current utility description (actual).
  2. Phoenix Water Services supplied by Central Arizona Project. Current. actual source share: 40 percent, current utility description (actual).
  3. Phoenix Water Services supplied by Salt River Project. Current. actual source share: 58 percent, current utility description (actual).
  4. Central Arizona Project imports from Colorado River. Current. The relationship is documented; a current delivered amount is not available.
  5. Salt River Project draws from Salt and Verde river system. 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.