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Water system · PWSID WA5363277

MAPLE GROVE

SEQUIM, WA · ~132 people served

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

PWSID

WA5363277

State

Washington

City

SEQUIM

Population served

132

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

42

Violations on record

0

Unaddressed

0

Health-based

4

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Resolved
Other · EPA contaminant 7000 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 2964 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2969 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2976 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2977 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2980 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2979 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2981 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2982 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2983 began Oct 2004 Resolved
Monitoring & reporting · EPA contaminant 2968 began Oct 2004 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SOX Sep 2018
  • State action · SOX Aug 2006
  • State action · SOX Jul 2006

This profile is built from EPA public records for system WA5363277 — 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.