WA5336350
WA
No open health violations

ISSAQUAH WATER SYSTEM

Surface water · Local · PO BOX 1307

Overall Risk Level

No Concerns Detected

No Concern
Low
Moderate
High
Critical

Water meets all safety standards with no detected exceedances.

Utility Overview

Population Served

43,584

Source Type

Surface water

Ownership

Local

PWSID

WA5336350

Detected Contaminants

CCR data ingestion in progress

Contaminant detection levels from Consumer Confidence Reports are being parsed and linked to utilities. Check back soon, or view the official report directly from the EPA links below.

View on EPA ECHO

Violation History

Sourced from EPA SDWIS. Health-based violations indicate the MCL was exceeded.

MR — Haloacetic Acids (HAA5)

2024Open

MR — Total Trihalomethanes (TTHMs)

2024Open

Other — Nitrate

2015Resolved

Related Pages

Washington State Overview

All utilities in WA

Data Sources & Provenance

All data on this page is sourced from official U.S. government or public datasets.

EPA ECHO — Water System & Compliance Report— PWSID WA5336350View source
EPA CCR — Consumer Confidence ReportsView source
Last updated: 2026-04-18
High Confidence
Annual refresh cycle

At a Glance

PWSIDWA5336350
StateWashington
Risk Levelsafe
Population Served43,584
Open Health Violations0

Service area match is likely but not guaranteed. Your water bill is the most reliable way to confirm your provider.

Data Sources

EPA ECHO Facility Report EPA CCR Search