ROCHE HARBOR WATER SYSTEM INC

Friday Harbor, WA · ~2,091 people served

Check your exact address → Friday Harbor overview

100

Excellent

PurityRadar safety score

PWSID

WA5373230

State

Washington

City

Friday Harbor

Population served

2,091

Primary source

Surface water

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

226

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jun 2019. Official EPA record →

Monitoring & reporting · EPA contaminant 0200 began May 2019 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Monitoring & reporting · Nitrate began Jan 2012 Resolved

Treatment technique · EPA contaminant 0200 health-based began Jul 2010 Resolved

Monitoring & reporting · EPA contaminant 2981 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2980 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2982 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2969 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2968 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2979 began Apr 2007 Resolved

Monitoring & reporting · EPA contaminant 2976 began Apr 2007 Resolved

Recent enforcement actions

State action · SOX Jun 2019
State action · SIA Jun 2019
State action · SOX Sep 2013
State action · SOX Mar 2013
State action · SIA Feb 2013
State action · SOX Sep 2012
State action · SIA Aug 2010
State action · SOX Aug 2010

This profile is built from EPA public records for system WA5373230 — 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.