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Yuma, AZ Tap Water Quality 2026

Water quality report for Yuma, AZ — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Yuma's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: City Of Yuma PWSID: AZ0414024 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 1.10 ppb, 7% of the action level and no violations are open. No PFAS was detected.

B

Yuma earns a B for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: 1.10 ppb — 7% of the federal action level
PFAS tested, none detected
84 violations since 2015, 23 health-based
No violations currently open
Yuma's lead level vs. all Arizona community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 1.10 ppb — 7% of the federal action level
✓ Lower lead than 63% of Arizona utilities
Population Served
92264
~32641 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
84 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
7% of EPA action level
1.10 ppb
Action level: 15 ppb
The 90th-percentile lead result is 1.10 ppb, 7% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2025 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2024 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2024 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1 MG/L 0.8 mg/L 2022 Resolved
Public Notice OTHER — — 2022 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.6 MG/L 0.8 mg/L 2022 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2022 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2022 Resolved
Public Notice OTHER — — 2022 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.3 MG/L 0.8 mg/L 2022 Resolved
Public Notice OTHER — — 2022 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.3 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.3 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
CARBON, TOTAL TREATMENT TECHNIQUE 0.88 RATIO TT 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.1 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.2 MG/L 0.8 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL — 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.5 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.2 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.1 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.3 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 2 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2021 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2021 Resolved
Chlorine dioxide DISINFECTANT LEVEL 0.9 MG/L 0.8 mg/L 2021 Resolved
Public Notice OTHER — — 2021 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2020 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2020 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1 MG/L 0.8 mg/L 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2020 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2020 Resolved
Chlorine dioxide DISINFECTANT LEVEL 0.9 MG/L 0.8 mg/L 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2020 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2020 Resolved
Chlorine dioxide DISINFECTANT LEVEL 0.9 MG/L 0.8 mg/L 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2020 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2020 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.7 MG/L 0.8 mg/L 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2020 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2020 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1.4 MG/L 0.8 mg/L 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Chlorine dioxide DISINFECTANT LEVEL 1 MG/L 0.8 mg/L 2020 Resolved
Public Notice OTHER — — 2020 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2018 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2018 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2018 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2018 Resolved
Chlorite MONITORING AND REPORTING — 1.0 mg/L 2018 Resolved
Chlorine dioxide MONITORING AND REPORTING — 0.8 mg/L 2018 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

84 violations are on record since 2015, of which 23 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility City Of Yuma
PWSID AZ0414024
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 92,264
Service connections 32,641
Systems serving this area 4
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Yuma tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 1.10 ppb, 7% of the action level.
Does Yuma water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Yuma? ▼
City Of Yuma (PWSID AZ0414024), one of 4 systems serving this area. Surface water. Drawn from surface water — SDWIS source code SW
When was this system last inspected? ▼
It was last inspected on 2024-12-20. No significant deficiencies were recorded.

What Should Yuma Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

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