UNION HILL WATER ASSOCIATION INC

Redmond, WA · ~8,720 people served

Check your exact address → Redmond overview

100

Excellent

PurityRadar safety score

PWSID

WA5390260

State

Washington

City

Redmond

Population served

8,720

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 Sep 2013. Official EPA record →

Other · EPA contaminant 7000 began Jul 2013 Resolved

Other · EPA contaminant 7000 began Jul 2010 Resolved

Monitoring & reporting · EPA contaminant 2964 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2969 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2976 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2977 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2980 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2979 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2981 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2982 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2983 began Jan 2005 Resolved

Monitoring & reporting · EPA contaminant 2968 began Jan 2005 Resolved

Recent enforcement actions

State action · SOX Sep 2013
State action · SOX Sep 2010
State action · SOX Apr 2005
State action · SOX Apr 2005
State action · SOX Apr 2005
State action · SOX Apr 2005
State action · SOX Apr 2005
State action · SOX Apr 2005

This profile is built from EPA public records for system WA5390260 — 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.