Is RETZ ADDN IMPROVEMENT ASSOCIATION required to publish a Consumer Confidence Report?

Yes. RETZ ADDN IMPROVEMENT ASSOCIATION 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 RETZ ADDN IMPROVEMENT ASSOCIATION’s next Consumer Confidence Report due?

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

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.

OTTAWA, IL · LaSalle County

RETZ ADDN IMPROVEMENT ASSOCIATION Water System

Consumer Confidence Report status

RETZ ADDN IMPROVEMENT ASSOCIATION 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 RETZ ADDN IMPROVEMENT ASSOCIATION.

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): IL0995400
System type: Community Water System
Population served: 168
Service connections: 67
Ownership: privately owned
Water source: groundwater (wells)

RETZ ADDN IMPROVEMENT ASSOCIATION is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, serving 168 people from groundwater.

As of August 1, 2026, its federal record holds 18 entries between 1996 and 2024, all of which EPA lists as closed.

Of the 18, 6 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 Radionuclides and Revised Rad Rule, the Public Notice Rule and Revised PN Rule, and the Consumer Confidence Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
October 11, 2024 – May 20, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 11, 2024 – June 24, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2023 – September 30, 2023
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 28, 2023 – June 23, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2022 – June 26, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2021 – December 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2021 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2021 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2012 – August 17, 2012
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2012 – July 31, 2012
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 2, 2010 – January 20, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2003 – September 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2003 – March 31, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2002 – December 31, 2002
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2002 – June 30, 2003
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2000 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
September 17, 1996 – September 16, 2000
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 11, 2024 – May 20, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 11, 2024 – June 24, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2023 – September 30, 2023	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 28, 2023 – June 23, 2023	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2022 – June 26, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2021 – December 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2021 – December 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2012 – August 17, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2012 – July 31, 2012	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 2, 2010 – January 20, 2010	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2003 – September 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2002 – June 30, 2003	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2000 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
September 17, 1996 – September 16, 2000	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 18, 2025State Public Notification received2 linked violations
May 20, 2025State Compliance achieved1 linked violation
November 19, 2024State Violation/Reminder Notice1 linked violation
August 1, 2024State Compliance achieved2 linked violations
June 28, 2024State Public Notification received1 linked violation
June 24, 2024State Compliance achieved1 linked violation
May 16, 2024State Violation/Reminder Notice1 linked violation
March 11, 2024State Violation/Reminder Notice1 linked violation
March 11, 2024State Intentional no-action1 linked violation
March 11, 2024State Public Notification requested1 linked violation
November 28, 2023State Compliance achieved1 linked violation
October 11, 2023State Public Notification requested2 linked violations
October 11, 2023State Violation/Reminder Notice2 linked violations
June 26, 2023State Compliance achieved1 linked violation
June 23, 2023State Compliance achieved1 linked violation
June 23, 2023State Public Notification received1 linked violation
April 17, 2023State Violation/Reminder Notice1 linked violation
July 26, 2022State Violation/Reminder Notice1 linked violation
January 27, 2022State Public Notification requested1 linked violation
January 27, 2022State Violation/Reminder Notice1 linked violation
January 21, 2022State Compliance achieved1 linked violation
July 10, 2013State Public Notification received1 linked violation
July 10, 2013State Public Notification received1 linked violation
August 17, 2012State Compliance achieved2 linked violations
August 13, 2012State Public Notification requested1 linked violation
August 13, 2012State Violation/Reminder Notice1 linked violation
August 13, 2012State Public Notification requested1 linked violation
August 13, 2012State Violation/Reminder Notice1 linked violation
January 20, 2010State Compliance achieved1 linked violation
January 12, 2010State Violation/Reminder Notice1 linked violation
July 28, 2008State Compliance achieved1 linked violation
July 18, 2008State Violation/Reminder Notice1 linked violation
September 17, 2005State Compliance achieved1 linked violation
August 24, 2005State Violation/Reminder Notice1 linked violation
January 5, 2004State Public Notification received1 linked violation
October 16, 2003State Compliance achieved6 linked violations
July 10, 2003State Public Notification requested3 linked violations
June 30, 2003State Compliance achieved3 linked violations
June 27, 2003State Public Notification received3 linked violations
April 10, 2003State Violation/Reminder Notice3 linked violations
April 10, 2003State Public Notification requested2 linked violations
April 3, 2003State Public Notification received3 linked violations
January 10, 2003State Public Notification requested2 linked violations
January 10, 2003State Violation/Reminder Notice2 linked violations
July 31, 2002State Violation/Reminder Notice1 linked violation
July 23, 1997State Public Notification received1 linked violation
May 14, 1997State Public Notification received1 linked violation
February 20, 1997State Public Notification received1 linked violation
December 10, 1996State Public Notification received1 linked violation
September 18, 1996State Public Notification received1 linked violation

Common questions

Is RETZ ADDN IMPROVEMENT ASSOCIATION required to publish a Consumer Confidence Report?: Yes. RETZ ADDN IMPROVEMENT ASSOCIATION 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 RETZ ADDN IMPROVEMENT ASSOCIATION’s next Consumer Confidence Report due?: RETZ ADDN IMPROVEMENT ASSOCIATION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does RETZ ADDN IMPROVEMENT ASSOCIATION have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for RETZ ADDN IMPROVEMENT ASSOCIATION.
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

BREWSTER, KATHY

815-228-5895

OTTAWA, IL 61350