Public Water Partners

CHATHAM, IL · Sangamon County

CHATHAM Water System

Consumer Confidence Report status

CHATHAM must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for CHATHAM.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)

CHATHAM is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 16,423 people from groundwater.

As of August 1, 2026, its federal record holds 13 entries between 1996 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.

Of the 13, 5 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Consumer Confidence Rule, the Total Coliform Rules, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

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
  • Monitoring, Repeat Major (TCR)

    Coliform (TCR)

    October 1, 2005 – October 31, 2005

    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

Common questions

Is CHATHAM required to publish a Consumer Confidence Report?

Yes. CHATHAM is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is CHATHAM’s next Consumer Confidence Report due?

CHATHAM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does CHATHAM have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for CHATHAM.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

PATTERSON, DUSTIN

217-416-8388

CHATHAM, IL 62629