Public Water Partners

AVISTON, IL · Montgomery County

COFFEEN Water System

Consumer Confidence Report status

COFFEEN 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 1 item for COFFEEN that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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)
IL1350150
System type
Community Water System
Population served
647
Service connections
290
Ownership
local government
Water source
surface water (rivers, lakes, or reservoirs)

COFFEEN is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 647 people from surface water.

As of August 1, 2026, its federal record holds 28 entries between 1977 and 2025, of which 1 remains open; none are health-based.

Of the 28, 19 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 Total Coliform Rules, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    July 1, 2025

    Unaddressed
  • Consumer Confidence Report Inadequate Reporting

    Consumer Confidence Rule

    July 1, 2024 – July 1, 2025

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    July 1, 2024 – September 30, 2024

    Resolved
  • Lead Consumer Notice

    Lead and Copper Rule

    December 30, 2022 – January 11, 2023

    Resolved
  • Public Notification Violation for NPDWR Violation

    Public Notice

    July 6, 2019 – July 23, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    July 1, 2019 – September 30, 2019

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    April 1, 2019 – June 30, 2019

    Resolved
  • Monitoring, Routine (RTCR)

    Revised Total Coliform Rule

    November 1, 2018 – November 30, 2018

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2018 – December 10, 2018

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Total Haloacetic Acids (HAA5)

    July 1, 2015 – September 30, 2015

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    January 1, 2012 – February 21, 2012

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    April 1, 2011 – June 20, 2011

    Resolved
  • Public Notification Violation without NPDWR Violation

    Public Notice

    January 5, 2006 – March 14, 2006

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    April 1, 2005 – June 30, 2005

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 2005 – April 30, 2005

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    October 1, 2004 – October 31, 2004

    Resolved
  • Consumer Confidence Report Complete Failure to Report

    Consumer Confidence Rule

    July 1, 2004 – October 24, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Atrazine

    October 1, 1994 – December 31, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    July 1, 1994 – July 31, 1994

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Atrazine

    July 1, 1994 – September 30, 1994

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    June 1, 1994 – June 30, 1994

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    November 1, 1993 – November 30, 1993

    Archived
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 1993 – April 30, 1993

    Archived
  • Monitoring, Regular

    Arsenic

    June 25, 1979 – June 24, 1980

    Archived
  • Monitoring, Regular

    Barium

    June 25, 1979 – June 24, 1980

    Archived
  • Monitoring, Regular

    Nitrate

    June 25, 1979 – June 24, 1980

    Archived
  • Monitoring, Regular

    Selenium

    June 25, 1979 – June 24, 1980

    Archived
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    June 30, 1977 – June 29, 1981

    Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

Common questions

Is COFFEEN required to publish a Consumer Confidence Report?

Yes. COFFEEN 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 COFFEEN’s next Consumer Confidence Report due?

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

Does COFFEEN have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show 1 item for COFFEEN that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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

HORSTMANN, CHRISTOPHER L.

618-973-0633

AVISTON, IL 62216