Drinking Water Compliance OS

CHATHAM, IL · Sangamon County

CHATHAM Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID)
IL1670300
System type
Community Water System
Population served
16,423
Service connections
6,569
Ownership
local government
Water source
groundwater (wells)

Violation history

  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2017 – December 31, 2017

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2017 – December 31, 2017

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2016 – July 25, 2016

    Resolved
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    September 1, 2012 – September 30, 2012

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2012 – July 13, 2012

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2010 – July 10, 2010

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2008 – August 12, 2008

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    November 30, 2006 – December 16, 2006

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 2005 – July 31, 2005

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2003 – August 7, 2003

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    September 1, 2000 – September 30, 2000

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    April 1, 1996 – April 30, 1996

    Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Contact

PATTERSON, DUSTIN

217-416-8388

CHATHAM, IL 62629