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Water system · PWSID WA5318440

DEER LAKE ESTATES

100
Excellent
PurityRadar safety score

PWSID

WA5318440

State

Washington

City

Coupeville

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

8

Violations on record

0

Unaddressed

0

Health-based

14

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Resolved
Monitoring & reporting · Nitrate began Jan 2022 Resolved
Monitoring & reporting · Arsenic began Jan 2020 Resolved
Monitoring & reporting · Total coliform began Nov 2014 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Monitoring & reporting · Nitrate began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2032 began Jan 2005 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 1998 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • State action · SOX Mar 2023
  • State action · SOX Mar 2023
  • State action · SFK Nov 2015
  • State action · SOX Mar 2015
  • State action · SOX Dec 2014
  • State action · SOX Oct 2014
  • State action · SOX Jan 2008

This profile is built from EPA public records for system WA5318440 — 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.