RIVERDALE, IL · Cook County

RIVERDALE Water System

Current status

No open violations on record as of July 4, 2026.

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): IL0312580
System type: Community Water System
Population served: 10,266
Service connections: 3,311
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – July 22, 2011
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 1998 – June 30, 1998
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 1997 – June 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1994 – November 30, 1994
Archived
Public Education
Health-based
Lead and Copper Rule
January 1, 1994 – February 5, 1995
Resolved
Public Education
Health-based
Lead and Copper Rule
January 1, 1993 – February 5, 1995
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
December 7, 1992 – July 21, 1994
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
April 1, 1992 – September 30, 1992
Resolved

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, 2011 – July 22, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 1998 – June 30, 1998	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 1997 – June 30, 1997	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
November 1, 1994 – November 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – February 5, 1995	Public Education	Lead and Copper Rule	Health-based	Resolved
January 1, 1993 – February 5, 1995	Public Education	Lead and Copper Rule	Health-based	Resolved
December 7, 1992 – July 21, 1994	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
April 1, 1992 – September 30, 1992	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 11, 2025State Violation/Reminder Notice1 linked violation
August 9, 2011State Violation/Reminder Notice1 linked violation
July 22, 2011State Compliance achieved1 linked violation
January 30, 2008State Violation/Reminder Notice1 linked violation
January 11, 2008State Compliance achieved1 linked violation
April 16, 1999State Compliance achieved1 linked violation
April 9, 1998State Compliance achieved1 linked violation
August 31, 1996State Public Notification requested1 linked violation
August 31, 1996State Violation/Reminder Notice1 linked violation
July 3, 1996State Public Notification received1 linked violation
December 31, 1995State Compliance achieved1 linked violation
February 22, 1995State Public Notification received1 linked violation
February 5, 1995State Compliance achieved2 linked violations
February 4, 1995State Public Notification requested1 linked violation
February 4, 1995State Violation/Reminder Notice1 linked violation
July 21, 1994State Compliance achieved1 linked violation
July 21, 1994State Compliance achieved1 linked violation
March 24, 1994State Public Notification requested1 linked violation
March 24, 1994State Public Notification requested1 linked violation
March 24, 1994State Violation/Reminder Notice1 linked violation
November 13, 1991State Public Notification received1 linked violation
November 9, 1991State Public Notification requested1 linked violation
November 9, 1991State Violation/Reminder Notice1 linked violation

Contact

HENNING, TODD C.

708-896-7601

RIVERDALE, IL 60827