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Water system · PWSID WA5361603

NORTH WHIDBEY WATER DISTRICT

Oak Harbor, WA · ~568 people served

Check your exact address → Oak Harbor overview
100
Excellent
PurityRadar safety score

PWSID

WA5361603

State

Washington

City

Oak Harbor

Population served

568

Primary source

SWP

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

10

Violations on record

0

Unaddressed

0

Health-based

8

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Jul 2023 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2022 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2022 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Other · EPA contaminant 7000 began Jul 2015 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2012 Resolved

Recent enforcement actions

  • State action · SOX Mar 2025
  • State action · SOX Nov 2024
  • State action · SOX Nov 2024
  • State action · SOX Oct 2023
  • State action · SOX Nov 2016
  • State action · SOX Sep 2015
  • State action · SOX Dec 2014
  • State action · SOX May 2013

This profile is built from EPA public records for system WA5361603 — 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.