GREEN ISLAND HILLS WATER ASSN

Mt Vernon, WA · ~265 people served

Check your exact address → Mt Vernon overview

100

Excellent

PurityRadar safety score

PWSID

WA5300429

State

Washington

City

Mt Vernon

Population served

265

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 Nov 2017. Official EPA record →

Other · EPA contaminant 7000 began Jul 2017 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Monitoring & reporting · EPA contaminant 2982 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2976 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2980 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2981 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2380 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2378 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2968 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2969 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2979 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2964 began Apr 2007 Resolved

Recent enforcement actions

State action · SOX Nov 2017
State action · SOX Oct 2013
State action · SOX Jul 2010
State action · SOX Jul 2007
State action · SOX Jul 2007
State action · SOX Jul 2007
State action · SOX Jul 2007
State action · SOX Jul 2007

This profile is built from EPA public records for system WA5300429 — 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.