NAHIKU

WAILUKU, HI · ~107 people served

Check your exact address → WAILUKU overview

100

Excellent

PurityRadar safety score

PWSID

HI0000220

State

Hawaii

City

WAILUKU

Population served

107

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2011. Official EPA record →

Monitoring & reporting · EPA contaminant 2035 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 2306 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 2033 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 2063 began Jan 2008 Resolved

Monitoring & reporting · Cyanide began Jan 2008 Resolved

Recent enforcement actions

State action · SIF Jun 2011
State action · SIA Apr 2011
State action · SOX Apr 2011
State action · SIC Sep 1987
State action · SIE Sep 1987
State action · SIC Sep 1987
State action · SIF Sep 1987
State action · SIA Sep 1987

This profile is built from EPA public records for system HI0000220 — 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.