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Public Water System
EMERALD LAKE
PWSID WA5323294 · Washington · 331 people served
A
ExcellentEMERALD LAKE is an EPA-regulated public water system in Washington (PWSID WA5323294). It serves an estimated 331 residents — a rural community of customers — across 1 community across 1 ZIP code.
EMERALD LAKE has maintained full EPA Safe Drinking Water Act compliance over the most recent five-year reporting window. No health-based Maximum Contaminant Level (MCL) exceedances are on record. The grade of A reflects this clean compliance history.
Service Area
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Centered on the averaged ZIP-code centroid of 1 ZIP served.
Population
331
Cities
1
ZIPs
1
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for EMERALD LAKE over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
EMERALD LAKE's water systems have met EPA health-based Maximum Contaminant Level (MCL) requirements throughout the EPA reporting window. This does not mean zero detection of regulated contaminants — it means all measured concentrations remained below their federal action levels.
Cities Served by EMERALD LAKE
ZIP Codes Served
About this system
EPA records this system as PWSID WA5323294. Data reflects the most recent EPA SDWIS publication as of 2026-05-18. Public Water System Identifiers (PWSIDs) are assigned by the EPA's Safe Drinking Water Act program to track every regulated water utility in the United States. The first two letters typically indicate the state primacy agency. For real-time water quality information, contact EMERALD LAKE directly or review their annual Consumer Confidence Report (CCR).
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