JOLIET, IL · Will County

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

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
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2007 – September 24, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2007 – September 30, 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)
October 1, 2006 – December 31, 2006
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)
October 1, 2005 – December 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
July 1, 2005 – September 30, 2005
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
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
December 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2004 – September 30, 2004
Resolved
Monitoring, Regular
—
Combined Uranium
July 1, 2004 – September 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
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)
January 1, 1994 – June 30, 1997
Resolved
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)

Period	Violation	Contaminant / rule	Health-based	Status
October 17, 2024 – April 15, 2025	LSL Inventory	LEAD AND COPPER RULE REVISIONS	Health-based	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2024 – December 31, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Archived
October 1, 2017 – December 31, 2017	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2017 – July 19, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Nitrate	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Nitrate	—	Resolved
October 1, 2007 – December 31, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
August 1, 2007 – August 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2007 – September 24, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2007 – June 30, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2007 – March 31, 2007	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2007 – June 30, 2007	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2006 – June 30, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2006 – March 31, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2006 – February 13, 2006	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2005 – December 31, 2005	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
December 1, 2004 – December 31, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2004 – September 30, 2004	Monitoring, Regular	Combined Uranium	—	Resolved
January 1, 2004 – March 31, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2003 – December 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2003 – September 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2003 – June 30, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2003 – March 31, 2003	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 2001 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 1998 – December 31, 1998	WQP Entry Point/Tap Treatment Technique Non-Compliance	Lead and Copper Rule	Health-based	Resolved
April 1, 1998 – March 31, 2002	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 1997 – June 30, 2001	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – June 30, 1997	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 6, 1993 – July 6, 1997	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
September 13, 1991 – July 6, 1993	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
December 1, 1989 – November 30, 1993	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
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

August 7, 2025State Public Notification received1 linked violation
August 7, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 7, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
August 7, 2025State Public Notification received1 linked violation
April 15, 2025State Compliance achieved1 linked violation
March 31, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 31, 2025State Compliance achieved1 linked violation
March 31, 2025State Compliance achieved1 linked violation
March 31, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 13, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 13, 2025State Public Notification requested1 linked violation
January 13, 2025State Violation/Reminder Notice1 linked violation
January 13, 2025State Public Notification requested1 linked violation
January 13, 2025State Violation/Reminder Notice1 linked violation
January 13, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 13, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 13, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 19, 2018State Compliance achieved1 linked violation
June 27, 2018State Public Notification received1 linked violation
June 27, 2018State Public Notification received1 linked violation
June 27, 2018State Public Notification received1 linked violation
June 27, 2018State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 27, 2018State Public Notification received1 linked violation
May 30, 2018State Compliance achieved2 linked violations
March 20, 2018State Compliance achieved1 linked violation
January 16, 2018State Violation/Reminder Notice1 linked violation
January 16, 2018State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 16, 2018State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 16, 2018State Public Notification requested1 linked violation
January 12, 2018State Public Notification requested1 linked violation
January 12, 2018State Public Notification requested1 linked violation
January 12, 2018State Violation/Reminder Notice1 linked violation
January 12, 2018State Violation/Reminder Notice1 linked violation
October 11, 2017State Public Notification requested2 linked violations
October 11, 2017State Violation/Reminder Notice1 linked violation
March 1, 2008State Compliance achieved1 linked violation
February 25, 2008State Public Notification received1 linked violation
January 17, 2008State Violation/Reminder Notice1 linked violation
January 17, 2008State Public Notification requested1 linked violation
December 31, 2007State Compliance achieved29 linked violations
October 29, 2007State Public Notification received1 linked violation
October 18, 2007State Violation/Reminder Notice1 linked violation
October 18, 2007State Public Notification requested1 linked violation
September 24, 2007State Compliance achieved1 linked violation
July 30, 2007State Public Notification received2 linked violations
July 19, 2007State Violation/Reminder Notice3 linked violations
July 12, 2007State Violation/Reminder Notice3 linked violations
May 8, 2007State Public Notification received3 linked violations
April 24, 2007State Violation/Reminder Notice2 linked violations
April 24, 2007State Public Notification requested44 linked violations
January 24, 2007State Violation/Reminder Notice1 linked violation
January 24, 2007State Public Notification requested1 linked violation
October 31, 2006State Public Notification received2 linked violations
October 17, 2006State Violation/Reminder Notice1 linked violation
October 17, 2006State Public Notification requested1 linked violation
July 28, 2006State Public Notification received1 linked violation
July 10, 2006State Public Notification requested1 linked violation
July 10, 2006State Violation/Reminder Notice1 linked violation
April 28, 2006State Public Notification received2 linked violations
April 4, 2006State Public Notification requested1 linked violation
April 4, 2006State Violation/Reminder Notice1 linked violation
April 4, 2006State Violation/Reminder Notice1 linked violation
April 4, 2006State Public Notification received2 linked violations
April 4, 2006State Public Notification requested1 linked violation
February 13, 2006State Compliance achieved9 linked violations
January 24, 2006State Public Notification received2 linked violations
January 10, 2006State Violation/Reminder Notice2 linked violations
January 10, 2006State Violation/Reminder Notice1 linked violation
January 10, 2006State Public Notification requested1 linked violation
January 10, 2006State Public Notification requested1 linked violation
January 3, 2006State Public Notification received3 linked violations
October 25, 2005State Public Notification received3 linked violations
October 7, 2005State Violation/Reminder Notice1 linked violation
October 7, 2005State Public Notification requested2 linked violations
October 7, 2005State Public Notification requested1 linked violation
July 29, 2005State Public Notification received2 linked violations
July 29, 2005State Public Notification received1 linked violation
July 8, 2005State Violation/Reminder Notice1 linked violation
July 8, 2005State Violation/Reminder Notice1 linked violation
July 1, 2005State Compliance achieved22 linked violations
April 28, 2005State Public Notification received1 linked violation
April 28, 2005State Public Notification received1 linked violation
April 8, 2005State Public Notification requested1 linked violation
April 8, 2005State Violation/Reminder Notice1 linked violation
April 7, 2005State Public Notification received1 linked violation
April 7, 2005State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
April 6, 2005State Public Notification received1 linked violation
April 5, 2005State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 14, 2005State Public Notification requested1 linked violation
February 14, 2005State Violation/Reminder Notice1 linked violation
February 7, 2005State Public Notification requested1 linked violation
January 7, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 7, 2005State Violation/Reminder Notice2 linked violations
January 7, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 3, 2005State Compliance achieved1 linked violation
December 6, 2004State Compliance achieved3 linked violations
November 18, 2004State Public Notification requested1 linked violation
November 18, 2004State Public Notification requested1 linked violation
November 18, 2004State Public Notification requested2 linked violations
November 18, 2004State Violation/Reminder Notice1 linked violation
November 18, 2004State Violation/Reminder Notice1 linked violation
October 19, 2004State Violation/Reminder Notice1 linked violation
October 19, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 19, 2004State Public Notification requested1 linked violation
September 21, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 21, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
September 21, 2004State Public Notification received1 linked violation
September 21, 2004State Public Notification received1 linked violation
August 2, 2004State Bilateral Compliance Agreement signed37 linked violations
July 10, 2004State Public Notification requested1 linked violation
July 10, 2004State Violation/Reminder Notice1 linked violation
July 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
June 2, 2004State Public Notification received1 linked violation
June 2, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 2, 2004State Public Notification received1 linked violation
June 2, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 2, 2004State Public Notification received2 linked violations
February 9, 2004State Compliance Meeting conducted31 linked violations
January 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 10, 2004State Public Notification requested1 linked violation
January 10, 2004State Violation/Reminder Notice1 linked violation
December 17, 2003State Formal Notice of Violation issued37 linked violations
April 10, 2003State Public Notification requested1 linked violation
April 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2003State Violation/Reminder Notice1 linked violation
January 10, 2003State Public Notification requested1 linked violation
January 10, 2003State Violation/Reminder Notice1 linked violation
January 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 30, 1999State Compliance achieved1 linked violation
August 15, 1996State Public Notification received1 linked violation
August 10, 1996State Violation/Reminder Notice1 linked violation
August 10, 1996State Public Notification requested1 linked violation
January 12, 1996State Public Notification received1 linked violation
December 9, 1995State Violation/Reminder Notice1 linked violation
December 9, 1995State Public Notification requested1 linked violation
October 1, 1995State Public Notification received3 linked violations
April 5, 1995State Compliance achieved1 linked violation
August 24, 1994State Public Notification received1 linked violation
April 14, 1994State Compliance achieved1 linked violation
April 1, 1994State Public Notification received2 linked violations
January 1, 1994State Public Notification received1 linked violation
January 1, 1994State Public Notification received1 linked violation
October 1, 1993State Public Notification received1 linked violation
August 25, 1993State Public Notification received1 linked violation
July 6, 1993State Compliance achieved1 linked violation
March 1, 1993State Compliance achieved1 linked violation
February 16, 1993State Public Notification received1 linked violation
January 8, 1993State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 1, 1992State Public Notification received3 linked violations
August 6, 1992State Public Notification received2 linked violations
June 3, 1992State Public Notification received1 linked violation
May 7, 1992State Public Notification requested1 linked violation
February 27, 1992State Administrative/Compliance Order without penalty issued2 linked violations
January 1, 1992State Public Notification received1 linked violation
October 15, 1991State Public Notification received1 linked violation
August 17, 1991State Public Notification requested1 linked violation
July 15, 1991State Public Notification received1 linked violation
April 15, 1991State Public Notification received1 linked violation
January 15, 1991State Public Notification received1 linked violation
December 5, 1990State Public Notification requested2 linked violations
July 15, 1990State Public Notification received1 linked violation
May 23, 1990State Public Notification requested1 linked violation
April 15, 1990State Public Notification received1 linked violation
January 15, 1990State Public Notification received1 linked violation
May 4, 1989State Public Notification received2 linked violations

Contact

SWISHER, ALLISON

815-724-4222

JOLIET, IL 60432