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Pisinemo, AZ Tap Water Quality 2026

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

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

Main Utility: Pisinemo Intertie PWSID: 090400030 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 0.50 ppb, 3% of the action level and no violations are open. PFAS has never been sampled at this system.

C

Pisinemo earns a C for water quality

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

Lead: 0.50 ppb — 3% of the federal action level
PFAS never sampled at this system
3 violations since 2015, 1 health-based
No violations currently open
Pisinemo's lead level vs. all Arizona community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 0.50 ppb — 3% of the federal action level
✓ Lower lead than 99% of Arizona utilities
Population Served
65
~114 connections
Water Source
Groundwater
Drawn from wells — SDWIS source code GW
Active Violations
0
3 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
3% of EPA action level
0.50 ppb
Action level: 15 ppb
The 90th-percentile lead result is 0.50 ppb, 3% 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
Gross Alpha, Excl. Radon and U MONITORING AND REPORTING — 15 pCi/L 2018 Resolved
Combined Uranium MONITORING AND REPORTING — 30 ug/L 2016 Resolved
Combined Uranium MCL EXCEEDANCE 0.0312 MG/L 30 ug/L 2016 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

3 violations are on record since 2015, of which 1 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Pisinemo Intertie
PWSID 090400030
Water source Groundwater — Drawn from wells — SDWIS source code GW
Population served 65
Service connections 114
Systems serving this area 1
Regulator US EPA (tribal primacy)
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Pisinemo tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 0.50 ppb, 3% of the action level.
Does Pisinemo 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 Pisinemo? ▼
Pisinemo Intertie (PWSID 090400030). Groundwater. Drawn from wells — SDWIS source code GW
When was this system last inspected? ▼
It was last inspected on 2025-10-07. Inspectors recorded 3 significant deficiencies.

What Should Pisinemo 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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