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Water system · PWSID HI0000371

POAMOHO

HONOLULU, HI · ~25 people served

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

PWSID

HI0000371

State

Hawaii

City

HONOLULU

Population served

25

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

8

Violations on record

0

Unaddressed

4

Health-based

19

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2016. Official EPA record →

Max contaminant level (MCL) · Total coliform health-based began Jul 2015 Resolved
Monitoring & reporting · Total coliform began Jul 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2015 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2011 Resolved

Recent enforcement actions

  • State action · SOX May 2016
  • State action · SIF Oct 2015
  • State action · SOX Aug 2015
  • State action · SIF Aug 2015
  • State action · SIF Aug 2015
  • State action · SIA Aug 2015
  • State action · SIA Jul 2015
  • State action · SIA Jul 2015

This profile is built from EPA public records for system HI0000371 — 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.