SHIRONA WATER SYSTEM

Coupeville, WA · ~243 people served

Check your exact address → Coupeville overview

100

Excellent

PurityRadar safety score

PWSID

WA5378373

State

Washington

City

Coupeville

Population served

243

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 Oct 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Resolved

Other · EPA contaminant 7000 began Jul 2023 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2021 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2021 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2020 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2020 Resolved

Other · EPA contaminant 7000 began Oct 1999 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1999 Resolved

Recent enforcement actions

State action · SOX Oct 2025
State action · SOX Sep 2024
State action · SOX Aug 2024
State action · SOX Jul 2024
State action · SOX Jan 2000
EPA/federal action · EOX Dec 1999
State action · SIA Sep 1986
State action · SIF Sep 1986

This profile is built from EPA public records for system WA5378373 — 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.