YORKVILLE, IL · Kendall County

YORKVILLE 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): IL0930250
System type: Community Water System
Population served: 23,000
Service connections: 8,695
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2021 – December 31, 2021
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 21, 2021
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – July 3, 2019
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
Gross Alpha, Excl. Radon and U
October 1, 2006 – December 31, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – July 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
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
Gross Alpha, Excl. Radon and U
January 1, 2006 – March 31, 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
Combined Radium (-226 and -228)
July 1, 2005 – September 30, 2005
Resolved
Monitoring, Regular
—
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
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2005 – March 31, 2005
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
September 26, 2000 – March 31, 2001
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 1998 – September 30, 1998
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1998 – August 31, 1998
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
May 1, 1998 – May 31, 1998
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 1996 – December 31, 1999
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
April 1, 1993 – August 27, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 1992 – December 31, 1995
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
February 1, 1988 – December 31, 1991
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 1988 – December 31, 1991
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 25, 1984 – January 24, 1988
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 1, 2021 – December 31, 2021	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
December 30, 2020 – January 21, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2019 – July 3, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2006 – December 31, 2006	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
July 1, 2006 – July 31, 2006	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	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	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	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2005 – September 30, 2005	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2005 – September 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
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
September 26, 2000 – March 31, 2001	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
September 1, 1998 – September 30, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
August 1, 1998 – August 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
May 1, 1998 – May 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1996 – December 31, 1999	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 1993 – August 27, 1993	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1992 – December 31, 1995	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
February 1, 1988 – December 31, 1991	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 1988 – December 31, 1991	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 25, 1984 – January 24, 1988	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 2, 2023State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 8, 2023State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 14, 2023State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 14, 2023State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 18, 2022State Compliance achieved1 linked violation
January 19, 2022State Violation/Reminder Notice1 linked violation
January 21, 2021State Compliance achieved1 linked violation
January 6, 2021State Violation/Reminder Notice1 linked violation
October 29, 2019State Violation/Reminder Notice1 linked violation
July 3, 2019State Compliance achieved1 linked violation
August 31, 2016State Compliance achieved1 linked violation
July 19, 2016State Violation/Reminder Notice1 linked violation
April 12, 2007State Public Notification received2 linked violations
January 24, 2007State Compliance achieved32 linked violations
January 18, 2007State Violation/Reminder Notice2 linked violations
January 18, 2007State Public Notification requested2 linked violations
October 19, 2006State Public Notification received5 linked violations
October 12, 2006State Public Notification requested1 linked violation
October 12, 2006State Violation/Reminder Notice1 linked violation
October 12, 2006State Public Notification requested1 linked violation
October 12, 2006State Violation/Reminder Notice1 linked violation
October 10, 2006State Public Notification received3 linked violations
August 23, 2006State Violation/Reminder Notice1 linked violation
July 31, 2006State Compliance achieved1 linked violation
July 21, 2006State Public Notification received2 linked violations
July 10, 2006State Public Notification requested2 linked violations
July 10, 2006State Violation/Reminder Notice2 linked violations
April 11, 2006State Public Notification requested2 linked violations
April 11, 2006State Violation/Reminder Notice2 linked violations
January 19, 2006State Public Notification received5 linked violations
January 10, 2006State Public Notification requested2 linked violations
November 3, 2005State Violation/Reminder Notice1 linked violation
November 3, 2005State Violation/Reminder Notice1 linked violation
November 3, 2005State Public Notification requested1 linked violation
November 3, 2005State Public Notification requested1 linked violation
October 20, 2005State Public Notification received2 linked violations
October 13, 2005State Compliance achieved2 linked violations
October 7, 2005State Violation/Reminder Notice2 linked violations
October 7, 2005State Public Notification requested2 linked violations
July 19, 2005State Public Notification received2 linked violations
July 8, 2005State Violation/Reminder Notice2 linked violations
July 8, 2005State Public Notification requested2 linked violations
April 14, 2005State Public Notification received2 linked violations
April 8, 2005State Violation/Reminder Notice2 linked violations
April 8, 2005State Public Notification requested2 linked violations
January 18, 2005State Public Notification received1 linked violation
January 7, 2005State Public Notification requested1 linked violation
January 7, 2005State Violation/Reminder Notice1 linked violation
October 19, 2004State Public Notification requested1 linked violation
October 19, 2004State Violation/Reminder Notice1 linked violation
October 18, 2004State Public Notification received1 linked violation
August 16, 2004State Public Notification received1 linked violation
August 16, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 10, 2004State Public Notification requested1 linked violation
July 10, 2004State Violation/Reminder Notice1 linked violation
May 4, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 4, 2004State Public Notification received2 linked violations
April 10, 2004State Violation/Reminder Notice1 linked violation
April 10, 2004State Public Notification requested2 linked violations
April 5, 2004State Public Notification received1 linked violation
March 11, 2004State Bilateral Compliance Agreement signed31 linked violations
February 3, 2004State Compliance Meeting conducted28 linked violations
December 26, 2003State Public Notification received2 linked violations
December 16, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 16, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 7, 2003State Public Notification received2 linked violations
July 10, 2003State Public Notification requested1 linked violation
April 10, 2003State Violation/Reminder Notice1 linked violation
January 10, 2003State Violation/Reminder Notice1 linked violation
January 10, 2003State Public Notification requested1 linked violation
December 10, 2002State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 31, 2001State Compliance achieved1 linked violation
November 15, 1998State Public Notification requested1 linked violation
November 15, 1998State Violation/Reminder Notice1 linked violation
October 15, 1998State Public Notification requested1 linked violation
October 15, 1998State Violation/Reminder Notice1 linked violation
July 18, 1998State Public Notification requested1 linked violation
July 18, 1998State Violation/Reminder Notice1 linked violation
July 1, 1998State Public Notification received1 linked violation
January 1, 1998State Public Notification received1 linked violation
October 1, 1997State Public Notification received1 linked violation
April 1, 1997State Public Notification received1 linked violation
October 1, 1996State Public Notification received1 linked violation
July 1, 1996State Public Notification received1 linked violation
April 1, 1996State Public Notification received1 linked violation
January 17, 1996State Public Notification received1 linked violation
October 1, 1995State Public Notification received1 linked violation
July 1, 1995State Public Notification received1 linked violation
April 1, 1995State Public Notification received1 linked violation
January 1, 1995State Public Notification received1 linked violation
July 1, 1994State Public Notification received1 linked violation
April 7, 1994State Public Notification received1 linked violation
April 7, 1994State Public Notification received4 linked violations
January 1, 1994State Public Notification received1 linked violation
January 1, 1994State Public Notification received4 linked violations
October 1, 1993State Public Notification received2 linked violations
October 1, 1993State Public Notification received1 linked violation
August 27, 1993State Compliance achieved1 linked violation
April 8, 1993State Public Notification received1 linked violation
January 1, 1993State Public Notification received1 linked violation
October 1, 1992State Public Notification received1 linked violation
August 5, 1992State Public Notification received1 linked violation
June 4, 1992State Public Notification received1 linked violation
October 13, 1991State Public Notification received2 linked violations
July 1, 1991State Public Notification received2 linked violations
April 8, 1991State Public Notification received2 linked violations
January 18, 1991State Public Notification received2 linked violations
October 9, 1990State Public Notification received4 linked violations
September 16, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 16, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 19, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 9, 1990State Public Notification received2 linked violations
May 24, 1990State Administrative/Compliance Order without penalty issued2 linked violations
April 4, 1990State Public Notification received3 linked violations
January 19, 1990State Public Notification received2 linked violations
July 10, 1989State Public Notification requested2 linked violations

Contact

DHUSE, ERIC

630-553-4350

YORKVILLE, IL 60560