Pawnee
EPA ID: IL1670850 · 2,700 people served · 4 ZIP codes
ZipCheckup's reading of EPA records for Pawnee (IL1670850): no drinking-water violations recorded since 2021. Federal SDWIS data returns no violation records for Pawnee, the supplier serving 2,700 residents - a statement about the EPA file rather than a measurement of contaminant levels in the water.
Data: EPA SDWIS
Service Area Map
Coverage area for Pawnee Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Pawnee have a median household income of $78,942 and about 11,191 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 69% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 38% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
🌊 Where Does Your Water Come From?
Pawnee'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.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Illinois
System Overview
Pawnee (EPA ID: IL1670850) is a community water system in Illinois that serves approximately 2,700 people from surface water sources.
This system provides water to 4 ZIP codes across 4 communities.
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.
Radon Risk in Service Area
4 of 4 ZIP records with known zones are in EPA Radon Zone 1.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
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.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Pawnee (IL1670850) on EPA.gov.
Frequently Asked Questions
Is Pawnee water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Pawnee 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 Pawnee serve?
Pawnee serves approximately 2,700 people across 4 ZIP codes in Illinois.
Where does Pawnee get its water?
The primary water source is surface water.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Pawnee Water Quality Report, IL. https://zipcheckup.com/water-system/il1670850/
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author = {{ZipCheckup}},
title = {{Pawnee Water Quality Report, IL}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/il1670850/}
}