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Water system · PWSID WA5388050

THORNTON WATER ASSOCIATION

100
Excellent
PurityRadar safety score

PWSID

WA5388050

State

Washington

City

Ferndale

Population served

55

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

1

Violations on record

0

Unaddressed

0

Health-based

3

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →

Monitoring · Lead & Copper Rule began Sep 2025 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • EPA/federal action · EIA Nov 1998
  • State action · SIA Sep 1995

This profile is built from EPA public records for system WA5388050 — 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.