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Water system · PWSID WA5380710

BILLINGTON

Maple Valley, WA · ~34 people served

Check your exact address → Maple Valley overview
100
Excellent
PurityRadar safety score

PWSID

WA5380710

State

Washington

City

Maple Valley

Population served

34

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

22

Violations on record

0

Unaddressed

0

Health-based

3

Enforcement actions

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

Monitoring · Lead & Copper Rule began Mar 2025 Resolved
Monitoring & reporting · EPA contaminant 2380 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2964 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2968 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2969 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2976 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2977 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2979 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2980 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2981 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2982 began Apr 2014 Resolved
Monitoring & reporting · EPA contaminant 2378 began Apr 2014 Resolved

Recent enforcement actions

  • State action · SOX Apr 2025
  • State action · SOX Apr 2015
  • State action · SOX Oct 2014

This profile is built from EPA public records for system WA5380710 — 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.