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Water system · PWSID WA5336300

ISSAQUAH VALLEY WATER ASSN #1

Issaquah, WA · ~80 people served

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

PWSID

WA5336300

State

Washington

City

Issaquah

Population served

80

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

16

Violations on record

0

Unaddressed

1

Health-based

25

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Jan 2022 Resolved
Monitoring & reporting · Nitrate began Jan 2019 Resolved
Treatment technique · Lead & Copper Rule health-based began Jun 2018 Resolved
Monitoring · Lead & Copper Rule began Feb 2018 Resolved
Monitoring · Lead & Copper Rule began Aug 2017 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Monitoring & reporting · Total coliform began Apr 2015 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Monitoring & reporting · Nitrate began Jan 2014 Resolved
Other · EPA contaminant 7000 began Jul 2013 Resolved
Monitoring & reporting · Total coliform began Sep 2012 Resolved
Other · EPA contaminant 7000 began Jul 2011 Resolved

Recent enforcement actions

  • State action · SOX Aug 2025
  • State action · SOX Sep 2020
  • State action · SOX Sep 2018
  • State action · SFK Aug 2018
  • State action · SOX Mar 2018
  • State action · SOX Sep 2017
  • State action · SOX Dec 2016
  • State action · SOX May 2015

This profile is built from EPA public records for system WA5336300 — 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.