Is MACKINAW required to publish a Consumer Confidence Report?

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

MACKINAW’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.

MACKINAW, IL · Tazewell County

MACKINAW Water System

Consumer Confidence Report status

MACKINAW 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 MACKINAW.

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): IL1790350
System type: Community Water System
Population served: 3,399
Service connections: 1,345
Ownership: local government
Water source: groundwater (wells)

MACKINAW is one of 248 community water systems in Illinois in the 3,301 to 10,000 people size category, serving 3,399 people from groundwater.

As of August 1, 2026, its federal record holds 6 entries between 1977 and 2005, all of which EPA lists as closed. Nothing has been added since 2005.

Of the 6, 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 Total Coliform Rules, the Stage 1 Disinfectants and Disinfection Byproducts Rule, and the Radionuclides and Revised Rad Rule.

Violation history

Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2005 – July 31, 2005
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2005 – August 15, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2000 – August 31, 2000
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1999 – August 31, 1999
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1993 – October 31, 1993
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, 2005 – July 31, 2005	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2005 – August 15, 2005	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2000 – August 31, 2000	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1999 – August 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1993 – October 31, 1993	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

June 20, 2006State Public Notification received1 linked violation
November 1, 2005State Public Notification received1 linked violation
September 12, 2005State Violation/Reminder Notice1 linked violation
September 12, 2005State Public Notification requested1 linked violation
September 7, 2005State Public Notification requested1 linked violation
September 7, 2005State Violation/Reminder Notice1 linked violation
August 15, 2005State Compliance achieved2 linked violations
October 15, 1999State Violation/Reminder Notice2 linked violations
October 15, 1999State Public Notification requested1 linked violation
December 18, 1993State Violation/Reminder Notice2 linked violations

Common questions

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

SCHOPP, MICHAEL E.

309-392-2442

MACKINAW, IL 61755