COLUMBIA SPRINGS ESTATES

Tonasket, WA · ~54 people served

Check your exact address → Tonasket overview

100

Excellent

PurityRadar safety score

PWSID

WA5304298

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 Mar 2023. Official EPA record →

Monitoring & reporting · Fluoride began Jan 2018 Resolved

Monitoring & reporting · Antimony began Jan 2017 Resolved

Monitoring & reporting · Barium began Jan 2017 Resolved

Monitoring & reporting · Cyanide began Jan 2017 Resolved

Monitoring & reporting · EPA contaminant 1036 began Jan 2017 Resolved

Monitoring & reporting · Nitrite began Jan 2017 Resolved

Monitoring & reporting · Fluoride began Jan 2017 Resolved

Monitoring & reporting · Arsenic began Jan 2017 Resolved

Monitoring & reporting · Cadmium began Jan 2017 Resolved

Monitoring & reporting · Chromium (total) began Jan 2017 Resolved

Monitoring & reporting · Selenium began Jan 2017 Resolved

Monitoring & reporting · Beryllium began Jan 2017 Resolved

Recent enforcement actions

State action · SOX Mar 2023
State action · SOX Mar 2023
State action · SOX Nov 2022
State action · SOX Apr 2019
State action · SOX Sep 2015
State action · SOX Jun 2015
State action · SOX Oct 2013
State action · SOX Oct 2013

This profile is built from EPA public records for system WA5304298 — 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.