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Water system · PWSID HI0000335

WAIPAHU-EWA-WAIANAE

HONOLULU, HI · ~217,479 people served

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

PWSID

HI0000335

State

Hawaii

City

HONOLULU

Population served

217,479

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 Sep 2023). Levels in parts per trillion (ppt).

PFPeA

3.3 ppt

limit —

No federal limit

Violations & enforcement

6

Violations on record

0

Unaddressed

0

Health-based

5

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2013. Official EPA record →

Monitoring & reporting · Nitrate began Jan 2012 Resolved
Monitoring & reporting · Nitrite began Jan 2012 Resolved
Monitoring & reporting · Nitrate began Jan 2011 Resolved
Monitoring & reporting · Nitrite began Jan 2011 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved
Monitoring & reporting · Lead & Copper Rule began Jul 1992 Resolved

Recent enforcement actions

  • State action · SIF Jul 2013
  • State action · SIA Jun 2013
  • State action · SOX May 2013
  • EPA/federal action · EOX Dec 1993
  • EPA/federal action · EOX Dec 1993

This profile is built from EPA public records for system HI0000335 — 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.