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Public Water System
NISQUALLY HIGHLANDS 364
PWSID WA5300953 · Washington · 162 people served
A
ExcellentNISQUALLY HIGHLANDS 364 is an EPA-regulated public water system in Washington (PWSID WA5300953). It serves an estimated 162 residents — a rural community of customers — across 1 community across 1 ZIP code.
NISQUALLY HIGHLANDS 364 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
162
Cities
1
ZIPs
1
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for NISQUALLY HIGHLANDS 364 over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
NISQUALLY HIGHLANDS 364'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 NISQUALLY HIGHLANDS 364
ZIP Codes Served
About this system
EPA records this system as PWSID WA5300953. 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 NISQUALLY HIGHLANDS 364 directly or review their annual Consumer Confidence Report (CCR).
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