WILLEYS LAKE TERRACE WATER ASSN

Ferndale, WA · ~180 people served

Check your exact address → Ferndale overview

100

Excellent

PurityRadar safety score

PWSID

WA5397110

State

Washington

City

Ferndale

Population served

180

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 Apr 2025. Official EPA record →

Max contaminant level (MCL) · Nitrate health-based began Jan 2024 Resolved

Monitoring · Lead & Copper Rule began May 2021 Resolved

Monitoring & reporting · Nitrate began Apr 2011 Resolved

Monitoring & reporting · Nitrate began Jul 2006 Resolved

Other · EPA contaminant 7000 began Jul 2000 Resolved

Recent enforcement actions

State action · SOX Apr 2025
State action · SIA Jul 2024
State action · SOX Jun 2021
State action · SOX Aug 2011
State action · SOX Dec 2006
State action · SOX Dec 2006
State action · SOX Oct 2006
State action · SOX Oct 2006

This profile is built from EPA public records for system WA5397110 — 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.