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Water system · PWSID WA5319928

HANSON HARBOR HOMEOWNERS ASSN

Tonasket, WA · ~220 people served

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

PWSID

WA5319928

State

Washington

City

Tonasket

Population served

220

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

142

Violations on record

0

Unaddressed

7

Health-based

71

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Sep 2021. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2018 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2018 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2013 Resolved
Max contaminant level (MCL) · Arsenic health-based began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jul 2012 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2012 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2012 Resolved
Monitoring & reporting · Arsenic began Jul 2011 Resolved
Max contaminant level (MCL) · Arsenic health-based began Jan 2010 Resolved
Monitoring & reporting · Arsenic began Apr 2009 Resolved

Recent enforcement actions

  • State action · SOX Sep 2021
  • State action · SOX Sep 2021
  • State action · SOX Oct 2014
  • State action · SOX Dec 2013
  • State action · SOX Dec 2013
  • State action · SOX Nov 2012
  • State action · SOX Nov 2011
  • State action · SFK Jun 2011

This profile is built from EPA public records for system WA5319928 — 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.