TINLEY PARK, IL · Cook County

TINLEY PARK Water System

Current status

2 items on record are open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

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
Unaddressed
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
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – July 24, 2007
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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
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
July 1, 2007 – July 24, 2007	Consumer Confidence Report Complete Failure to Report	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 Public Notification requested1 linked violation
July 3, 2025State Violation/Reminder Notice1 linked violation
July 2, 2025State Compliance achieved1 linked violation
October 12, 2024State Violation/Reminder Notice1 linked violation
October 12, 2024State Public Notification requested1 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
February 28, 1993State Public Notification requested2 linked violations
February 28, 1993State Violation/Reminder Notice2 linked violations

Contact

FITZPATRICK, JOE

708-444-5530

TINLEY PARK, IL 60477