Is TINLEY PARK required to publish a Consumer Confidence Report?

Yes. TINLEY PARK 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 TINLEY PARK’s next Consumer Confidence Report due?

TINLEY PARK’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.

TINLEY PARK, IL · Cook County

TINLEY PARK Water System

Consumer Confidence Report status

TINLEY PARK 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 1 item for TINLEY PARK that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

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): IL0314910
System type: Community Water System
Population served: 56,703
Service connections: 20,816
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

TINLEY PARK is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 56,703 people from surface water.

As of August 1, 2026, its federal record holds 8 entries between 1993 and 2025, of which 1 remains open; none are health-based.

Of the 8, 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 the Consumer Confidence Rule, the Lead and Copper Rule, and the Total Coliform Rules.

Violation history

Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025 – July 2, 2025
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024 – June 6, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – July 22, 2019
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – July 31, 2013
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 6, 2010 – January 4, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2003 – November 30, 2003
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1993 – January 31, 1993
Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 2, 2025 – July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Resolved
July 1, 2025	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
October 1, 2024 – June 6, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2019 – July 22, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2013 – July 31, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 6, 2010 – January 4, 2011	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
November 1, 2003 – November 30, 2003	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 1993 – January 31, 1993	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 27, 2025State Public Notification received1 linked violation
August 6, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Public Notification requested1 linked violation
July 2, 2025State Compliance achieved1 linked violation
June 6, 2025State Compliance achieved1 linked violation
October 12, 2024State Public Notification requested1 linked violation
October 12, 2024State Violation/Reminder Notice1 linked violation
July 22, 2019State Compliance achieved1 linked violation
July 17, 2019State Violation/Reminder Notice1 linked violation
July 31, 2013State Compliance achieved1 linked violation
July 25, 2013State Violation/Reminder Notice1 linked violation
January 7, 2011State Bilateral Compliance Agreement signed1 linked violation
January 4, 2011State Compliance achieved1 linked violation
December 21, 2010State Formal Notice of Violation issued1 linked violation
October 6, 2010State Violation/Reminder Notice1 linked violation
July 24, 2007State Compliance achieved1 linked violation
July 16, 2007State Violation/Reminder Notice1 linked violation
March 4, 2004State Public Notification received1 linked violation
January 26, 2004State Public Notification requested1 linked violation
January 26, 2004State Violation/Reminder Notice1 linked violation
December 23, 2003State Compliance achieved1 linked violation

Common questions

Is TINLEY PARK required to publish a Consumer Confidence Report?: Yes. TINLEY PARK 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 TINLEY PARK’s next Consumer Confidence Report due?: TINLEY PARK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does TINLEY PARK have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 item for TINLEY PARK that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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

FITZPATRICK, JOE

708-444-5530

TINLEY PARK, IL 60477