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Water system · PWSID AZ0410060

METROPOLITAN DWID - HUB

TUCSON, AZ · ~4,252 people served

Check your exact address → TUCSON overview
100
Excellent
PurityRadar safety score

PWSID

AZ0410060

State

Arizona

City

TUCSON

Population served

4,252

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

Latest detections from EPA’s UCMR5 monitoring (through Oct 2024). Levels in parts per trillion (ppt).

Lithium

31,000 ppt

limit —

No federal limit

Violations & enforcement

129

Violations on record

0

Unaddressed

1

Health-based

48

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2025. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Arsenic began Apr 2023 Resolved
Monitoring & reporting · Arsenic began Apr 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2021 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2016 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2016 Resolved
Monitoring & reporting · Total coliform began Dec 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2014 Resolved
Other · EPA contaminant 7000 began Oct 2012 Resolved
Other · EPA contaminant 7000 began Jul 2012 Resolved

Recent enforcement actions

  • State action · SIF Jun 2025
  • State action · SOX Jun 2025
  • State action · SIA Aug 2024
  • State action · SIE Aug 2024
  • State action · SOX Jul 2023
  • State action · SIA Jul 2023
  • State action · SIA Jul 2023
  • State action · SOX Nov 2022

This profile is built from EPA public records for system AZ0410060 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.