LOST RIVER AIRPORT ASSOCIATION

Tonasket, WA · ~72 people served

Check your exact address → Tonasket overview

100

Excellent

PurityRadar safety score

PWSID

WA5348348

State

Washington

City

Tonasket

Population served

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 Aug 2017. Official EPA record →

Monitoring & reporting · EPA contaminant 2979 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2982 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2977 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2980 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2981 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2380 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2976 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2378 began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2983 began Jul 2016 Resolved

Recent enforcement actions

State action · SOX Aug 2017
State action · SOX Jan 2017
State action · SOX Jan 2017
State action · SOX Oct 2016
State action · SOX Dec 2014
State action · SOX Jan 2014
State action · SOX Jan 2014
State action · SOX Jan 2014

This profile is built from EPA public records for system WA5348348 — 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.