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Washington Park, AZ Tap Water Quality 2026

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

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

Main Utility: Rim Trail Dwid PWSID: AZ0404035 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. PFAS has never been sampled at this system.

C

Washington Park earns a C for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: not detected
PFAS never sampled at this system
78 violations since 2015, 10 health-based
No violations currently open
Washington Park's lead level vs. all Arizona community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Arizona utilities
Population Served
54
~95 connections
Water Source
Surface water
Drawn from surface water — SDWIS source code SW
Active Violations
0
78 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
110% of EPA action level
1,430 ppb
Action level: 1,300 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Public Notice OTHER — — 2025 Resolved
Public Notice OTHER — — 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Consumer Confidence Rule OTHER — — 2025 Unaddressed
Surface Water Treatment Rule MONITORING AND REPORTING — — 2025 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Archived
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2025 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2025 Unaddressed
Consumer Confidence Rule OTHER — — 2025 Unaddressed
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2025 Archived
Public Notice OTHER — — 2024 Unaddressed
LEAD AND COPPER RULE REVISIONS REPORTING FAILURE — — 2024 Resolved
LEAD AND COPPER RULE REVISIONS TREATMENT TECHNIQUE — — 2024 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2024 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Archived
Consumer Confidence Rule OTHER — — 2023 Resolved
Consumer Confidence Rule OTHER — — 2023 Resolved
Chlorine MONITORING AND REPORTING — 4.0 mg/L 2023 Resolved
1,2,4-Trichlorobenzene MONITORING AND REPORTING — 0.07 mg/L 2022 Resolved
cis-1,2-Dichloroethylene MONITORING AND REPORTING — 0.07 mg/L 2022 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2022 Resolved
DICHLOROMETHANE MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
o-Dichlorobenzene MONITORING AND REPORTING — 0.6 mg/L 2022 Resolved
p-Dichlorobenzene MONITORING AND REPORTING — 0.075 mg/L 2022 Resolved
Vinyl chloride MONITORING AND REPORTING — 0.002 mg/L 2022 Resolved
1,1-Dichloroethylene MONITORING AND REPORTING — 0.007 mg/L 2022 Resolved
trans-1,2-Dichloroethylene MONITORING AND REPORTING — 0.1 mg/L 2022 Resolved
1,2-Dichloroethane MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
1,1,1-Trichloroethane MONITORING AND REPORTING — 0.2 mg/L 2022 Resolved
Carbon tetrachloride MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
1,2-Dichloropropane MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Trichloroethylene MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
1,1,2-Trichloroethane MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Tetrachloroethylene MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
CHLOROBENZENE MONITORING AND REPORTING — 0.1 mg/L 2022 Resolved
Benzene MONITORING AND REPORTING — 0.005 mg/L 2022 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2022 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2022 Resolved
Styrene MONITORING AND REPORTING — 0.1 mg/L 2022 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2021 Resolved
Consumer Confidence Rule OTHER — — 2020 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2019 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2019 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2019 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
Revised Total Coliform Rule REPORTING FAILURE — — 2018 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2018 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
E. COLI MONITORING AND REPORTING — 0 2018 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2017 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2017 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2017 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2017 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2017 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2016 Resolved
Interim Enhanced Surface Water Treatment Rule TREATMENT TECHNIQUE — — 2016 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2016 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2015 Resolved
Surface Water Treatment Rule MONITORING AND REPORTING — — 2015 Resolved
Interim Enhanced Surface Water Treatment Rule MONITORING AND REPORTING — — 2015 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

78 violations are on record since 2015, of which 10 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Rim Trail Dwid
PWSID AZ0404035
Water source Surface water — Drawn from surface water — SDWIS source code SW
Population served 54
Service connections 95
Systems serving this area 2
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Washington Park tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Washington Park water have PFAS? ▼
This system has never been sampled for PFAS. EPA's national monitoring covered systems serving 3,300 people or more, so no results exist — which is not evidence that none is present.
Who supplies water to Washington Park? ▼
Rim Trail Dwid (PWSID AZ0404035), one of 2 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 2025-07-23. Inspectors recorded 1 significant deficiency.

What Should Washington Park 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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