STEVENS CO PUD - HALFMOON RANCHOS

Loon Lake, WA · ~216 people served

Check your exact address → Loon Lake overview

100

Excellent

PurityRadar safety score

PWSID

WA5330420

State

Washington

City

Loon Lake

Population served

216

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 Oct 2022. Official EPA record →

Monitoring & reporting · Nitrate began Jul 2022 Resolved

Monitoring & reporting · Nitrate began Jan 2021 Resolved

Monitoring & reporting · Total coliform began Mar 2013 Resolved

Monitoring & reporting · Nitrate began Jan 2006 Resolved

Recent enforcement actions

State action · SOX Oct 2022
State action · SOX Apr 2022
State action · SOX Apr 2013
State action · SOX Aug 2007
State action · SOX Aug 2007
State action · SOX Aug 2007
State action · SOX Jan 2007
State action · SOX Jan 2007

This profile is built from EPA public records for system WA5330420 — 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.