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Public Water System
IL AMERICAN-DUPAGE UTILITY
PWSID IL0430552 · Illinois · 6,613 people served
A
ExcellentIL AMERICAN-DUPAGE UTILITY is an EPA-regulated public water system in Illinois (PWSID IL0430552). It serves an estimated 6,613 residents — a small town of customers — across 1 community across 1 ZIP code.
IL AMERICAN-DUPAGE UTILITY 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
6,613
Cities
1
ZIPs
1
Violations
0
EPA Health-Based Violations
Health-based Maximum Contaminant Level (MCL) violations on file for IL AMERICAN-DUPAGE UTILITY over the past five years of EPA SDWIS reporting.
✅
No health-based violations in the last 5 years.
IL AMERICAN-DUPAGE UTILITY'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 IL AMERICAN-DUPAGE UTILITY
ZIP Codes Served
About this system
EPA records this system as PWSID IL0430552. 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 IL AMERICAN-DUPAGE UTILITY directly or review their annual Consumer Confidence Report (CCR).
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