PFOA
Not detected above reporting limit
- Sample date
- Reporting limit
- 0.004 µg/L
- Sample ID
- 2023101618
PUBLIC WATER SYSTEM
Phoenix Water Services
Water testing, compliance records and water sources for this system. Check your utility bill to confirm your provider.
AZ0407025Open in the atlas →Public drinking-water record
Drinking-water testing
Phoenix Water Services · AZ0407025. These are public water-system records, not a test of the tap water at your home.
PFAS testing
18 PFAS sample results had reported detections. Most recent PFAS sample shown here: .
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
Drinking water & contaminants
Drinking-water testing and compliance
Compliance records, PFAS sampling, and lead and copper results answer different questions. None is a test of a particular home's faucet.
Recency unconfirmed · Date unavailableEPA ECHO / SDWIS federal snapshot
The source does not provide a publication date. The last check date is not recorded. This report may not describe conditions today.
EPA ECHO / SDWIS · 2026 Q2 snapshot
No current violations flagged; past records available
This means no current violation is flagged in this snapshot. It does not prove that every tap is contaminant-free.
- People served
- 1,695,000
- Historical records
- 75
- Source type
- Surface water
Compliance history
75 violation records
Federal and primacy-agency regulatory history reported in EPA ECHO/SDWIS; not a household tap-water test.
PFAS / UCMR5
Several PFAS compounds were detected in these samples
1,512 compound results in the 2023–2026 UCMR5 final release. Non-detection means not detected above the reporting limit in that sample—not that PFAS never occurs.
Lead & copper
15 system-level results
System-level lead/copper 90th-percentile reporting; not the lead or copper level at a particular faucet. This system-wide inventory does not identify the pipes at your address.
Consumer Confidence Report
Find your annual water-quality report
Your utility’s annual Consumer Confidence Report describes its water sources and testing results. Contact the utility for its latest report.
Learn about annual water-quality reportsMeasurement coverage
No measurements available here
We do not have measurements to show for Phoenix Water Services in this section. Explore the connections below for related waters and water providers.
No measurement history available here
We do not have historical measurements to show for Phoenix Water Services. This does not mean it is unmonitored or that its water is safe or unsafe. You can still explore the information and source links on this page.
The local measurements below and the federal records above may cover different sites and dates. Some results may overlap, so do not add their counts together.
Rivers, lakes & drinking water
Local monitoring and source water
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 2024
Fully Supporting
EPA waterbody recordAlvord Park Lakeunknown · reporting cycle 2024
Not Assessed
EPA waterbody recordMonitoring activity
3,593 sites67,480 observations144 characteristics
Water Quality Portal measurements from the surrounding area. More measurements can mean more monitoring—not worse water.
metals minerals 424nutrients 211organics pesticides 13,853pfas 1,782salinity basic chemistry 3,769unclassified 47,441
See recent measurement examples
Tetrachloroethylene55.6 ug/L · 2026-06-03
PropyleneNot Detected · 2026-06-03
ChlorobenzeneNot Detected · 2026-06-03
1,1,1,2-TetrachloroethaneNot Detected · 2026-06-03
1,2,3-TrimethylbenzeneNot Detected · 2026-06-03
1,2-DichloropropaneNot Detected · 2026-06-03
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
Water sources
Where the 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.
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.
- Phoenix Water Services uses groundwater from Phoenix Active Management Area aquifers. Current. actual source share: 2 percent, current utility description (actual).
- Phoenix Water Services supplied by Central Arizona Project. Current. actual source share: 40 percent, current utility description (actual).
- Phoenix Water Services supplied by Salt River Project. Current. actual source share: 58 percent, current utility description (actual).
- Central Arizona Project imports from Colorado River. Current. The relationship is documented; a current delivered amount is not available.
- 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.
Connected water system
Phoenix Active Management Area aquifers · Detail page unavailable
Central Arizona Project · Detail page unavailable
Pure Water Phoenix · Detail page unavailable
Salt River Project · Detail page unavailable