Dawson

ZipCheckup's reading of EPA SDWIS for Dawson (IL1670400): 68 EPA violations in the last five years. While 68 violations did appear in Dawson's five-year monitoring record, none remain unresolved - the utility has returned to full compliance and continues to serve approximately 2,375 residents under all current EPA drinking water standards.

Data: EPA SDWIS

System Overview

Dawson (EPA ID: IL1670400) is a community water system in Illinois that serves approximately 2,375 people from groundwater sources.

This system provides water to 2 ZIP codes across 2 communities.

Violation History

Status breakdown for accepted records with record years 2021-2026: 37 resolved, 31 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

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.

• 62563 - Rochester
• 62712 - Springfield

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for Dawson (IL1670400) on EPA.gov.

Frequently Asked Questions

Is Dawson water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Dawson; its 68 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Dawson serve?

Dawson serves approximately 2,375 people across 2 ZIP codes in Illinois.

Where does Dawson get its water?

The primary water source is groundwater.

@misc{zipcheckup-water-system-il1670400,
  author = {{ZipCheckup}},
  title  = {{Dawson (IL): 68 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/il1670400/}
}