Is LANARK required to publish a Consumer Confidence Report?

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

LANARK’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.

LANARK, IL · Carroll County

LANARK Water System

Consumer Confidence Report status

LANARK 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 LANARK.

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): IL0150100
System type: Community Water System
Population served: 1,504
Service connections: 691
Ownership: local government
Water source: groundwater (wells)

LANARK is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,504 people from groundwater.

As of August 1, 2026, its federal record holds 9 entries between 1977 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

Of the 9, 5 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 Consumer Confidence Rule, the Total Coliform Rules, and the Lead and Copper Rule.

Violation history

Report Sample Result/Fail Monitor (RTCR)
—
Revised Total Coliform Rule
September 1, 2023 – December 4, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2023 – December 27, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2021 – January 31, 2022
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2020 – December 31, 2022
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2016 – July 27, 2016
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – August 1, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 2, 2010 – May 20, 2010
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 1994 – September 30, 1994
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
September 1, 2023 – December 4, 2023	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – December 27, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
December 30, 2021 – January 31, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2016 – July 27, 2016	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2013 – August 1, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 2, 2010 – May 20, 2010	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
September 1, 1994 – September 30, 1994	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

December 27, 2023State Public Notification received1 linked violation
December 27, 2023State Compliance achieved1 linked violation
December 27, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 6, 2023State Violation/Reminder Notice1 linked violation
December 4, 2023State Compliance achieved1 linked violation
November 6, 2023State Violation/Reminder Notice1 linked violation
May 10, 2023State Compliance achieved1 linked violation
February 14, 2023State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 14, 2023State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 14, 2023State Violation/Reminder Notice1 linked violation
February 14, 2023State Public Notification requested1 linked violation
January 31, 2022State Compliance achieved1 linked violation
January 19, 2022State Violation/Reminder Notice1 linked violation
July 27, 2016State Compliance achieved1 linked violation
July 18, 2016State Violation/Reminder Notice1 linked violation
August 1, 2013State Compliance achieved1 linked violation
July 25, 2013State Violation/Reminder Notice1 linked violation
May 20, 2010State Compliance achieved2 linked violations
April 5, 2010State Formal Notice of Violation issued1 linked violation
January 12, 2010State Violation/Reminder Notice1 linked violation
November 19, 1994State Violation/Reminder Notice1 linked violation
November 19, 1994State Public Notification requested1 linked violation

Common questions

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

ALVARADO, JASON

815-493-6832

LANARK, IL 61046