Oakbrook Terrace
EPA ID: IL0430750 · 1,440 people served · 1 ZIP code
ZipCheckup's reading of EPA records for Oakbrook Terrace (IL0430750): no drinking-water violations recorded since 2021. EPA monitoring records reviewed for Oakbrook Terrace list no violations. That describes the federal file only, not a test of the water at any tap, for a utility that reports serving approximately 1,440 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Oakbrook Terrace Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Oakbrook Terrace have a median household income of $90,375 and about 30,247 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 86% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
🌊 Where Does Your Water Come From?
Oakbrook Terrace's water is drawn from rivers, lakes, or reservoirs. Surface water sources are more exposed to agricultural runoff, stormwater, and upstream discharges, but they typically receive more intensive treatment before reaching your tap.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points. Surface water sources near wastewater outfalls may face additional treatment challenges.
Superfund Proximity Note: This service area ranks in the 70th percentile nationally for proximity to Superfund (NPL) sites.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Illinois
System Overview
Oakbrook Terrace (EPA ID: IL0430750) is a community water system in Illinois that serves approximately 1,440 people from surface water sources.
This system serves ZIP code 60181 in Villa Park.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by IL or modeled from parcel and building-footprint data.
- 60181 - Villa Park
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Oakbrook Terrace (IL0430750) on EPA.gov.
Frequently Asked Questions
Is Oakbrook Terrace water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Oakbrook Terrace in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Oakbrook Terrace serve?
Oakbrook Terrace serves approximately 1,440 people across 1 ZIP code in Illinois.
Where does Oakbrook Terrace get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Oakbrook Terrace Water Quality Report, IL. https://zipcheckup.com/water-system/il0430750/
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author = {{ZipCheckup}},
title = {{Oakbrook Terrace Water Quality Report, IL}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/il0430750/}
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