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Public Water System
HAMILTON CITY OF
PWSID MT0000234 · Montana · 5,585 people served
A
ExcellentHAMILTON CITY OF is an EPA-regulated public water system in Montana (PWSID MT0000234). It serves an estimated 5,585 residents — a small town of customers — across 1 community across 1 ZIP code.
HAMILTON CITY OF 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
5,585
Cities
1
ZIPs
1
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for HAMILTON CITY OF over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
HAMILTON CITY OF'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 HAMILTON CITY OF
ZIP Codes Served
About this system
EPA records this system as PWSID MT0000234. 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 HAMILTON CITY OF directly or review their annual Consumer Confidence Report (CCR).
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