Is CARBON CLIFF required to publish a Consumer Confidence Report?

Yes. CARBON CLIFF 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 CARBON CLIFF’s next Consumer Confidence Report due?

CARBON CLIFF’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.

CARBON CLIFF, IL · Rock Island County

CARBON CLIFF Water System

Consumer Confidence Report status

CARBON CLIFF 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 CARBON CLIFF.

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): IL1610100
System type: Community Water System
Population served: 2,134
Service connections: 644
Ownership: local government
Water source: groundwater (wells)

CARBON CLIFF is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 2,134 people from groundwater.

As of August 1, 2026, its federal record holds 26 entries between 1977 and 2025, all of which EPA lists as closed.

Of the 26, 14 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 Total Coliform Rules, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
February 16, 2025 – March 14, 2025
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2024 – December 31, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2023 – May 2, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2023 – March 31, 2023
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2022 – August 12, 2024
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2021 – December 31, 2021
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
July 1, 2021 – July 31, 2021
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2021 – August 6, 2021
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2019 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2018 – March 31, 2018
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2017 – December 31, 2017
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2016 – December 31, 2016
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2009 – October 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2009 – December 1, 2009
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
October 1, 2009 – October 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2009 – August 11, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2007 – June 30, 2007
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 7, 2007 – January 19, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2006 – September 30, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2003 – July 31, 2003
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1999 – July 31, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1992 – December 31, 1992
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
February 16, 2025 – March 14, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2024 – December 31, 2024	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2023 – May 2, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2023 – March 31, 2023	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2022 – August 12, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 1, 2021 – December 31, 2021	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2021 – July 31, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2021 – August 6, 2021	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2019 – December 31, 2019	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2018 – March 31, 2018	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2017 – December 31, 2017	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2016 – December 31, 2016	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2009 – October 31, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2009 – December 1, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2009 – October 31, 2009	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2009 – August 11, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 7, 2007 – January 19, 2007	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2006 – September 30, 2006	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2003 – July 31, 2003	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1999 – July 31, 1999	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1998 – April 30, 1998	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
April 1, 1998 – April 30, 1998	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 1992 – December 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	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

June 11, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 11, 2025State Compliance achieved1 linked violation
April 29, 2025State Administrative/Compliance Order without penalty issued1 linked violation
March 31, 2025State Public Notification received1 linked violation
March 31, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 31, 2025State Public Notification received1 linked violation
March 19, 2025State Violation/Reminder Notice1 linked violation
March 14, 2025State Compliance achieved1 linked violation
January 28, 2025State Formal Notice of Violation issued1 linked violation
January 16, 2025State Public Notification requested1 linked violation
January 16, 2025State Compliance achieved1 linked violation
January 16, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 16, 2025State Violation/Reminder Notice1 linked violation
January 13, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 13, 2025State Public Notification requested1 linked violation
January 13, 2025State Violation/Reminder Notice1 linked violation
January 13, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 12, 2024State Compliance achieved1 linked violation
May 2, 2024State Compliance achieved1 linked violation
March 7, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
December 12, 2023State Violation/Reminder Notice1 linked violation
July 3, 2023State Public Notification received1 linked violation
May 10, 2023State Compliance achieved1 linked violation
April 15, 2023State Violation/Reminder Notice1 linked violation
October 17, 2022State Public Notification requested1 linked violation
October 17, 2022State Violation/Reminder Notice1 linked violation
January 25, 2022State Compliance achieved1 linked violation
January 19, 2022State Violation/Reminder Notice1 linked violation
September 10, 2021State Public Notification received1 linked violation
September 10, 2021State Public Notification received1 linked violation
August 20, 2021State Violation/Reminder Notice1 linked violation
August 20, 2021State Violation/Reminder Notice1 linked violation
August 20, 2021State Public Notification requested1 linked violation
August 20, 2021State Public Notification requested1 linked violation
August 6, 2021State Compliance achieved2 linked violations
April 21, 2020State Bilateral Compliance Agreement signed1 linked violation
February 18, 2020State Public Notification received1 linked violation
January 29, 2020State Formal Notice of Violation issued1 linked violation
January 24, 2020State Compliance achieved1 linked violation
January 15, 2020State Violation/Reminder Notice1 linked violation
January 15, 2020State Public Notification requested1 linked violation
June 30, 2018State Compliance achieved2 linked violations
May 24, 2018State Bilateral Compliance Agreement signed2 linked violations
May 17, 2018State Public Notification received1 linked violation
April 13, 2018State Violation/Reminder Notice1 linked violation
April 13, 2018State Public Notification requested1 linked violation
February 14, 2018State Public Notification received1 linked violation
January 31, 2018State Formal Notice of Violation issued2 linked violations
January 18, 2018State Public Notification requested1 linked violation
January 18, 2018State Violation/Reminder Notice1 linked violation
January 17, 2017State Compliance achieved1 linked violation
January 12, 2017State Violation/Reminder Notice1 linked violation
May 24, 2010State Public Notification received3 linked violations
May 1, 2010State Compliance achieved2 linked violations
December 9, 2009State Public Notification received1 linked violation
December 1, 2009State Compliance achieved1 linked violation
November 17, 2009State Public Notification requested1 linked violation
November 17, 2009State Public Notification requested1 linked violation
November 17, 2009State Violation/Reminder Notice1 linked violation
November 17, 2009State Public Notification requested1 linked violation
November 17, 2009State Violation/Reminder Notice1 linked violation
November 17, 2009State Violation/Reminder Notice1 linked violation
August 12, 2009State Violation/Reminder Notice1 linked violation
August 12, 2009State Public Notification requested1 linked violation
August 11, 2009State Compliance achieved1 linked violation
February 20, 2009State Compliance achieved1 linked violation
February 18, 2009State Violation/Reminder Notice1 linked violation
February 13, 2008State Violation/Reminder Notice1 linked violation
February 7, 2008State Compliance achieved1 linked violation
February 7, 2008State Public Notification received1 linked violation
December 4, 2007State Compliance achieved1 linked violation
October 22, 2007State Compliance achieved4 linked violations
October 18, 2007State Public Notification requested1 linked violation
October 18, 2007State Violation/Reminder Notice1 linked violation
August 1, 2007State Public Notification received1 linked violation
July 19, 2007State Public Notification requested1 linked violation
July 19, 2007State Violation/Reminder Notice1 linked violation
May 4, 2007State Public Notification received1 linked violation
April 24, 2007State Public Notification requested1 linked violation
April 24, 2007State Violation/Reminder Notice1 linked violation
February 16, 2007State Violation/Reminder Notice1 linked violation
February 8, 2007State Compliance Meeting conducted4 linked violations
January 19, 2007State Compliance achieved1 linked violation
January 19, 2007State Public Notification received1 linked violation
December 14, 2006State Formal Notice of Violation issued4 linked violations
December 7, 2006State Violation/Reminder Notice1 linked violation
December 7, 2006State Public Notification requested1 linked violation
October 12, 2006State Violation/Reminder Notice1 linked violation
September 11, 2003State Public Notification requested1 linked violation
September 11, 2003State Violation/Reminder Notice1 linked violation
September 15, 1999State Violation/Reminder Notice1 linked violation
September 15, 1999State Public Notification requested1 linked violation
June 27, 1998State Public Notification requested2 linked violations
June 27, 1998State Violation/Reminder Notice2 linked violations
February 13, 1993State Public Notification requested1 linked violation
February 13, 1993State Violation/Reminder Notice1 linked violation

Common questions

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

GOTTWALT, NICK

309-236-5625

CARBON CLIFF, IL 61239