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Water system · PWSID WA5377620

SEQUIM CITY OF

SEQUIM, WA · ~14,293 people served

Check your exact address → SEQUIM overview
100
Excellent
PurityRadar safety score

PWSID

WA5377620

State

Washington

City

SEQUIM

Population served

14,293

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

Latest detections from EPA’s UCMR5 monitoring (through Oct 2023). Levels in parts per trillion (ppt).

PFBS

3.2 ppt

limit —

No federal limit

Violations & enforcement

2

Violations on record

0

Unaddressed

0

Health-based

3

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2024 Resolved
Other · EPA contaminant 7000 began Oct 1999 Resolved

Recent enforcement actions

  • State action · SOX Feb 2025
  • EPA/federal action · EOX Dec 1999
  • State action · SIC Sep 1986

This profile is built from EPA public records for system WA5377620 — 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.