Is MUNDELEIN required to publish a Consumer Confidence Report?

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

MUNDELEIN’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.

MUNDELEIN, IL · Lake County

MUNDELEIN Water System

Consumer Confidence Report status

MUNDELEIN 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 MUNDELEIN.

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): IL0971150
System type: Community Water System
Population served: 31,500
Service connections: 10,876
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

MUNDELEIN is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 31,500 people from surface water.

As of August 1, 2026, its federal record holds 18 entries between 1977 and 2024, all of which EPA lists as closed.

Of the 18, 13 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, volatile organic chemicals, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

Monitoring and Reporting (DBP)
—
TTHM
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2024 – March 31, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2011 – July 10, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – July 23, 2007
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
February 1, 2006 – February 28, 2006
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
September 11, 2004 – January 5, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2003 – July 31, 2003
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
June 1, 2000 – June 30, 2000
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1999 – October 31, 1999
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
October 1, 1999 – October 31, 1999
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
March 1, 1997 – March 31, 1997
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 1992 – March 31, 1992
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1992 – March 31, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 18, 1989 – June 30, 1992
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

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

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2011 – July 10, 2012	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2007 – July 23, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
February 1, 2006 – February 28, 2006	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
September 11, 2004 – January 5, 2005	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 1, 2003 – July 31, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
June 1, 2000 – June 30, 2000	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 1999 – October 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
October 1, 1999 – October 31, 1999	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
March 1, 1997 – March 31, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 1992 – March 31, 1992	Monitoring, Regular	Carbon tetrachloride	—	Resolved
December 18, 1989 – June 30, 1992	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

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

Enforcement actions

June 27, 2024State Public Notification received2 linked violations
May 20, 2024State Compliance achieved2 linked violations
April 11, 2024State Violation/Reminder Notice2 linked violations
April 11, 2024State Public Notification requested2 linked violations
July 10, 2012State Compliance achieved1 linked violation
August 24, 2011State Violation/Reminder Notice1 linked violation
July 23, 2007State Compliance achieved1 linked violation
July 16, 2007State Violation/Reminder Notice1 linked violation
September 1, 2006State Compliance achieved1 linked violation
July 24, 2006State Public Notification received1 linked violation
March 29, 2006State Public Notification requested1 linked violation
January 5, 2005State Compliance achieved2 linked violations
October 28, 2004State Violation/Reminder Notice2 linked violations
September 11, 2003State Public Notification requested1 linked violation
September 11, 2003State Violation/Reminder Notice1 linked violation
December 15, 1999State Public Notification requested2 linked violations
December 15, 1999State Violation/Reminder Notice2 linked violations
June 30, 1996State Compliance achieved7 linked violations
June 30, 1992State Compliance achieved1 linked violation
June 1, 1992State Public Notification received7 linked violations
March 1, 1992State Public Notification received1 linked violation
January 1, 1992State Violation/Reminder Notice7 linked violations
January 1, 1992State Public Notification requested7 linked violations
December 30, 1991State Public Notification received1 linked violation
September 24, 1991State Public Notification received1 linked violation
June 18, 1991State Public Notification received1 linked violation
March 16, 1991State Public Notification received1 linked violation
January 18, 1991State Public Notification requested1 linked violation
December 15, 1990State Public Notification received2 linked violations
September 27, 1990State Public Notification received1 linked violation
June 1, 1990State Public Notification received1 linked violation
March 1, 1990State Public Notification received1 linked violation
December 28, 1989State Public Notification received2 linked violations

Common questions

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

CACIOPPO, PAUL

847-949-3281

MUNDELEIN, IL 60060