Is CARLOCK required to publish a Consumer Confidence Report?

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

CARLOCK’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.

CARLOCK, IL · McLean County

CARLOCK Water System

Consumer Confidence Report status

CARLOCK 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 CARLOCK.

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): IL1130250
System type: Community Water System
Population served: 562
Service connections: 264
Ownership: local government
Water source: groundwater (wells)

CARLOCK is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 562 people from groundwater.

As of August 1, 2026, its federal record holds 29 entries between 1977 and 2024, all of which EPA lists as closed.

Of the 29, 4 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 inorganic chemicals, the Total Coliform Rules, and the Consumer Confidence Rule.

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2024 – August 5, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2015 – June 30, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2015 – March 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2014 – December 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2014 – September 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2014 – June 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2013 – June 30, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2013 – March 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2012 – December 31, 2012
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – July 20, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2012 – June 30, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2012 – March 31, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2011 – December 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2011 – September 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
January 1, 2011 – March 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
October 1, 2010 – December 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
July 1, 2010 – September 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Arsenic
April 1, 2010 – June 30, 2010
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2005 – September 6, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2004 – July 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2004 – June 30, 2004
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
October 1, 1999 – October 31, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1999 – October 31, 1999
Archived
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
July 1, 2024 – August 5, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2015 – June 30, 2015	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2015 – March 31, 2015	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2014 – December 31, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2014 – September 30, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2013 – June 30, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2012 – December 31, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2012 – July 20, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2012 – June 30, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2012 – March 31, 2012	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
October 1, 2010 – December 31, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2010 – September 30, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Arsenic	Health-based	Resolved
July 1, 2005 – September 6, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2004 – July 31, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
June 1, 2004 – June 30, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 1999 – October 31, 1999	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1999 – October 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
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

August 5, 2024State Compliance achieved1 linked violation
July 31, 2024State Violation/Reminder Notice1 linked violation
August 12, 2016Federal Compliance achieved21 linked violations
September 1, 2015State Compliance achieved21 linked violations
July 17, 2015State Violation/Reminder Notice1 linked violation
June 19, 2015State Public Notification received1 linked violation
June 17, 2015State Public Notification received1 linked violation
April 16, 2015State Violation/Reminder Notice1 linked violation
April 16, 2015State Public Notification requested1 linked violation
January 16, 2015State Public Notification received1 linked violation
January 15, 2015State Violation/Reminder Notice1 linked violation
January 15, 2015State Public Notification requested1 linked violation
October 16, 2014State Public Notification requested1 linked violation
October 16, 2014State Violation/Reminder Notice1 linked violation
September 4, 2014State Public Notification received1 linked violation
July 17, 2014State Public Notification requested1 linked violation
July 17, 2014State Violation/Reminder Notice1 linked violation
May 7, 2014State Public Notification received1 linked violation
April 16, 2014State Public Notification requested1 linked violation
April 16, 2014State Violation/Reminder Notice1 linked violation
February 24, 2014State Public Notification received1 linked violation
January 31, 2014State Violation/Reminder Notice1 linked violation
January 31, 2014State Public Notification requested1 linked violation
November 15, 2013State Public Notification received1 linked violation
October 15, 2013State Public Notification requested1 linked violation
October 15, 2013State Violation/Reminder Notice1 linked violation
October 8, 2013State Public Notification received1 linked violation
July 23, 2013State Public Notification requested1 linked violation
July 23, 2013State Violation/Reminder Notice1 linked violation
May 20, 2013State Public Notification received1 linked violation
April 18, 2013State Violation/Reminder Notice1 linked violation
April 18, 2013State Public Notification requested1 linked violation
February 19, 2013State Public Notification received1 linked violation
January 16, 2013State Violation/Reminder Notice1 linked violation
January 16, 2013State Public Notification requested1 linked violation
December 5, 2012Federal Final Administrative Order issued17 linked violations
November 9, 2012State Public Notification received1 linked violation
October 17, 2012State Public Notification requested1 linked violation
October 17, 2012State Violation/Reminder Notice1 linked violation
August 1, 2012State Public Notification received1 linked violation
July 20, 2012State Compliance achieved1 linked violation
July 13, 2012State Violation/Reminder Notice1 linked violation
July 13, 2012State Public Notification requested1 linked violation
July 12, 2012State Violation/Reminder Notice1 linked violation
May 18, 2012State Public Notification received1 linked violation
April 12, 2012State Violation/Reminder Notice1 linked violation
April 12, 2012State Public Notification requested1 linked violation
February 22, 2012State Public Notification received1 linked violation
January 17, 2012State Violation/Reminder Notice1 linked violation
January 17, 2012State Public Notification requested1 linked violation
October 19, 2011State Public Notification requested1 linked violation
October 19, 2011State Violation/Reminder Notice1 linked violation
September 15, 2011Federal issued Formal Notice of Violation5 linked violations
August 11, 2011State Public Notification received1 linked violation
July 20, 2011State Public Notification requested1 linked violation
July 20, 2011State Violation/Reminder Notice1 linked violation
May 26, 2011State Other21 linked violations
April 28, 2011State Public Notification received1 linked violation
April 19, 2011State Violation/Reminder Notice1 linked violation
April 19, 2011State Public Notification requested1 linked violation
February 8, 2011State Public Notification received1 linked violation
January 21, 2011State Public Notification requested1 linked violation
January 21, 2011State Violation/Reminder Notice1 linked violation
November 23, 2010State Public Notification received1 linked violation
October 20, 2010State Public Notification requested1 linked violation
October 20, 2010State Violation/Reminder Notice1 linked violation
August 20, 2010State Public Notification received1 linked violation
August 10, 2010State Formal Notice of Violation issued21 linked violations
August 3, 2010State Public Notification requested1 linked violation
August 3, 2010State Violation/Reminder Notice1 linked violation
October 17, 2005State Public Notification received2 linked violations
October 6, 2005State Public Notification requested1 linked violation
October 6, 2005State Violation/Reminder Notice1 linked violation
October 4, 2005State Public Notification requested1 linked violation
October 4, 2005State Violation/Reminder Notice1 linked violation
September 13, 2005State Public Notification received1 linked violation
September 7, 2005State Violation/Reminder Notice1 linked violation
September 7, 2005State Public Notification requested1 linked violation
September 6, 2005State Compliance achieved3 linked violations
April 28, 2005State Public Notification received1 linked violation
April 28, 2005State Public Notification received1 linked violation
February 1, 2005State Compliance achieved2 linked violations
October 7, 2004State Public Notification requested1 linked violation
October 7, 2004State Violation/Reminder Notice1 linked violation
October 6, 2004State Public Notification requested1 linked violation
October 6, 2004State Violation/Reminder Notice1 linked violation
August 24, 2004State Public Notification requested1 linked violation
August 24, 2004State Violation/Reminder Notice1 linked violation
August 2, 2004State Compliance achieved1 linked violation
July 6, 2004State Public Notification received1 linked violation
December 15, 1999State Public Notification requested2 linked violations
December 15, 1999State Violation/Reminder Notice2 linked violations
May 15, 1999State Public Notification requested1 linked violation
May 15, 1999State Violation/Reminder Notice1 linked violation
May 6, 1993State Public Notification requested1 linked violation
May 6, 1993State Violation/Reminder Notice1 linked violation

Common questions

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

BECKER, MICHELE

309-376-2219

CARLOCK, IL 61725