Public Water Partners

IL · Will County

JOLIET Water System

Consumer Confidence Report status

JOLIET 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 JOLIET.

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)
IL1970450
System type
Community Water System
Population served
160,000
Service connections
49,000
Ownership
local government
Water source
groundwater (wells)

JOLIET is the third largest community water system in Illinois, serving 160,000 people from groundwater.

As of August 1, 2026, its federal record holds 46 entries between 1977 and 2024, all of which EPA lists as closed.

Of the 46, 18 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 Radionuclides and Revised Rad Rule, the Lead and Copper Rule, and synthetic organic chemicals.

Violation history

  • LSL Inventory

    Health-based

    LEAD AND COPPER RULE REVISIONS

    October 17, 2024 – April 15, 2025

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2024 – December 31, 2024

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2024 – December 31, 2024

    Resolved
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2023 – December 31, 2025

    Archived
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    October 1, 2017 – December 31, 2017

    Resolved
  • Follow-up Or Routine LCR Tap M/R

    Lead and Copper Rule

    October 1, 2017 – July 19, 2018

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2017 – December 31, 2017

    Resolved
  • Monitoring, Regular

    Nitrate

    January 1, 2017 – December 31, 2017

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2007 – December 31, 2007

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    August 1, 2007 – August 31, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2007 – September 30, 2007

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    July 1, 2007 – September 24, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2007 – June 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2007 – March 31, 2007

    Resolved
  • Water Quality Parameter M/R

    Lead and Copper Rule

    January 1, 2007 – June 30, 2007

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2006 – September 30, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2006 – June 30, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2006 – March 31, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    January 1, 2006 – February 13, 2006

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2005 – September 30, 2005

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    July 1, 2005 – September 30, 2005

    Resolved
  • Monitoring and Reporting (DBP)

    Chlorine

    October 1, 2004 – December 31, 2004

    Resolved
  • Monitoring, Regular

    Combined Uranium

    July 1, 2004 – September 30, 2004

    Resolved
  • Monitoring, Regular

    Combined Radium (-226 and -228)

    July 1, 2004 – September 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2004 – September 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2004 – June 30, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2004 – March 31, 2004

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2003 – December 31, 2003

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2003 – September 30, 2003

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    April 1, 2003 – June 30, 2003

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    January 1, 2003 – March 31, 2003

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    October 1, 2002 – December 31, 2002

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 2002 – September 30, 2002

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 2001 – September 30, 2002

    Resolved
  • WQP Entry Point/Tap Treatment Technique Non-Compliance

    Health-based

    Lead and Copper Rule

    October 1, 1998 – December 31, 1998

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    April 1, 1998 – March 31, 2002

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 1, 1997 – June 30, 2001

    Resolved
  • Maximum Contaminant Level Violation, Acute (TCR)

    Health-based

    Coliform (TCR)

    May 1, 1996 – May 31, 1996

    Archived
  • Monitoring, Repeat Minor (TCR)

    Coliform (TCR)

    September 1, 1995 – September 30, 1995

    Archived
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    July 6, 1993 – July 6, 1997

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Gross Alpha, Excl. Radon and U

    September 13, 1991 – July 6, 1993

    Resolved
  • Maximum Contaminant Level Violation, Average

    Health-based

    Combined Radium (-226 and -228)

    December 1, 1989 – November 30, 1993

    Resolved
  • 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)

Enforcement actions

Common questions

Is JOLIET required to publish a Consumer Confidence Report?

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

JOLIET’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does JOLIET have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for JOLIET.

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

Not on record

Phone not on record