MAPLE PARK, IL · Kane County

MAPLE PARK Water System

Current status

1 item on record is 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): IL0890500
System type: Community Water System
Population served: 1,484
Service connections: 594
Ownership: local government
Water source: groundwater (wells)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2025 – December 31, 2025
Archived
Public Notification Violation for NPDWR Violation
—
Public Notice
September 19, 2025 – December 10, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
September 19, 2025 – December 10, 2025
Resolved
Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2025 – September 30, 2025
Archived
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
February 1, 2024 – February 29, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2024 – December 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2024 – December 31, 2024
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2021 – November 3, 2021
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2017 – December 31, 2019
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2017 – December 31, 2019
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2014 – June 30, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2014 – March 31, 2014
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2013 – December 31, 2013
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2013 – September 30, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2011 – November 30, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2011 – December 9, 2011
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2009 – December 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2007 – December 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2007 – December 31, 2009
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)
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)
April 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 1998 – March 31, 2002
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1997 – January 31, 1997
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 1996 – December 31, 1996
Archived
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
December 1, 1996 – December 31, 1996
Archived
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
December 1, 1996 – December 31, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1994 – December 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1994 – September 30, 1994
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1994 – January 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1991 – September 30, 1991
Archived
Maximum Contaminant Level Violation, Average
Health-based
Barium
March 19, 1990 – March 18, 1993
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – December 31, 2025	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
September 19, 2025 – December 10, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
September 19, 2025 – December 10, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
July 1, 2025 – September 30, 2025	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Archived
October 1, 2024 – December 31, 2024	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
February 1, 2024 – February 29, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2024 – December 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2021 – November 3, 2021	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2017 – December 31, 2019	Monitoring, Regular	Carbofuran	—	Resolved
April 1, 2014 – June 30, 2014	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2014 – March 31, 2014	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2013 – December 31, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2013 – September 30, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
November 1, 2011 – November 30, 2011	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2011 – December 9, 2011	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2009 – December 31, 2009	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2007 – December 31, 2009	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2007 – December 31, 2009	Monitoring and Reporting (DBP)	TTHM	—	Resolved
April 1, 2004 – June 30, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	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
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
April 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 1998 – March 31, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 1997 – January 31, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 1996 – December 31, 1996	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
December 1, 1996 – December 31, 1996	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
December 1, 1996 – December 31, 1996	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Archived
November 1, 1996 – November 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
December 1, 1994 – December 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
September 1, 1994 – September 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
July 1, 1994 – July 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – January 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
September 1, 1991 – September 30, 1991	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
March 19, 1990 – March 18, 1993	Maximum Contaminant Level Violation, Average	Barium	Health-based	Archived
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yet

Enforcement actions

December 10, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 10, 2025State Public Notification received1 linked violation
December 10, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 10, 2025State Compliance achieved1 linked violation
December 10, 2025State Public Notification received1 linked violation
December 10, 2025State Compliance achieved1 linked violation
November 13, 2025State Public Notification requested1 linked violation
November 13, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 13, 2025State Violation/Reminder Notice1 linked violation
November 13, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 15, 2025State Violation/Reminder Notice1 linked violation
October 15, 2025State Violation/Reminder Notice1 linked violation
August 19, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 19, 2025State Violation/Reminder Notice1 linked violation
August 19, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 19, 2025State Public Notification requested1 linked violation
July 30, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 30, 2025State Compliance achieved2 linked violations
July 3, 2025State Public Notification requested1 linked violation
July 3, 2025State Violation/Reminder Notice1 linked violation
May 12, 2025State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 12, 2025State Public Notification received1 linked violation
February 20, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 20, 2025State Compliance achieved1 linked violation
February 3, 2025State Public Notification received1 linked violation
February 3, 2025State Public Notification received2 linked violations
February 3, 2025State Public Notification received1 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
October 15, 2024State Violation/Reminder Notice2 linked violations
October 15, 2024State Public Notification requested2 linked violations
April 3, 2024State Compliance achieved2 linked violations
March 25, 2024State Violation/Reminder Notice1 linked violation
March 25, 2024State Public Notification requested1 linked violation
March 25, 2024State Violation/Reminder Notice1 linked violation
March 25, 2024State Public Notification requested1 linked violation
November 3, 2021State Compliance achieved1 linked violation
September 29, 2021State Violation/Reminder Notice1 linked violation
June 22, 2020State Public Notification received1 linked violation
June 22, 2020State Public Notification received1 linked violation
March 30, 2020State Compliance achieved2 linked violations
January 15, 2020State Public Notification requested1 linked violation
January 15, 2020State Public Notification requested1 linked violation
January 15, 2020State Violation/Reminder Notice1 linked violation
January 15, 2020State Violation/Reminder Notice1 linked violation
September 15, 2014State Public Notification received1 linked violation
August 25, 2014State Compliance achieved4 linked violations
July 17, 2014State Public Notification requested1 linked violation
July 17, 2014State Violation/Reminder Notice1 linked violation
April 16, 2014State Violation/Reminder Notice1 linked violation
February 6, 2014State Bilateral Compliance Agreement signed4 linked violations
January 30, 2014State Violation/Reminder Notice1 linked violation
November 4, 2013State Public Notification received1 linked violation
November 1, 2013State Formal Notice of Violation issued4 linked violations
October 15, 2013State Violation/Reminder Notice1 linked violation
October 15, 2013State Public Notification requested1 linked violation
December 7, 2012State Public Notification received2 linked violations
December 19, 2011State Violation/Reminder Notice1 linked violation
December 19, 2011State Public Notification requested1 linked violation
December 19, 2011State Violation/Reminder Notice1 linked violation
December 19, 2011State Public Notification requested1 linked violation
December 9, 2011State Compliance achieved2 linked violations
October 8, 2010State Public Notification received2 linked violations
June 21, 2010State Compliance achieved2 linked violations
January 22, 2010State Compliance achieved1 linked violation
January 15, 2010State Violation/Reminder Notice1 linked violation
December 16, 2009State Bilateral Compliance Agreement signed2 linked violations
November 2, 2009State Formal Notice of Violation issued2 linked violations
October 20, 2009State Public Notification requested2 linked violations
October 20, 2009State Violation/Reminder Notice2 linked violations
October 19, 2004State Compliance achieved9 linked violations
October 4, 2004State Public Notification received1 linked violation
July 10, 2004State Violation/Reminder Notice1 linked violation
July 10, 2004State Public Notification requested1 linked violation
June 18, 2004State Public Notification received1 linked violation
April 10, 2004State Violation/Reminder Notice1 linked violation
April 10, 2004State Public Notification requested1 linked violation
April 1, 2004State Bilateral Compliance Agreement signed9 linked violations
February 24, 2004State Public Notification received1 linked violation
January 27, 2004State Formal Notice of Violation issued9 linked violations
January 10, 2004State Public Notification requested1 linked violation
January 10, 2004State Violation/Reminder Notice1 linked violation
October 8, 2003State Public Notification received1 linked violation
July 10, 2003State Violation/Reminder Notice2 linked violations
April 10, 2003State Violation/Reminder Notice2 linked violations
January 10, 2003State Violation/Reminder Notice2 linked violations
September 30, 2002State Public Notification requested1 linked violation
September 30, 2002State Violation/Reminder Notice1 linked violation
March 27, 1997State Public Notification requested1 linked violation
March 27, 1997State Violation/Reminder Notice1 linked violation
February 27, 1997State Public Notification received3 linked violations
February 23, 1997State Violation/Reminder Notice3 linked violations
February 23, 1997State Public Notification requested3 linked violations
January 30, 1997State Public Notification received1 linked violation
January 25, 1997State Public Notification requested1 linked violation
January 25, 1997State Violation/Reminder Notice1 linked violation
February 26, 1995State Public Notification requested1 linked violation
February 26, 1995State Violation/Reminder Notice1 linked violation
December 1, 1994State Public Notification received1 linked violation
November 26, 1994State Violation/Reminder Notice1 linked violation
November 26, 1994State Public Notification requested1 linked violation
September 25, 1994State Public Notification requested1 linked violation
September 25, 1994State Violation/Reminder Notice1 linked violation
September 25, 1994State Public Notification requested1 linked violation
March 6, 1994State Violation/Reminder Notice1 linked violation
March 6, 1994State Public Notification requested1 linked violation
March 6, 1994State Violation/Reminder Notice1 linked violation
September 16, 1993State Public Notification received1 linked violation
May 7, 1992State Public Notification requested1 linked violation
March 12, 1992State Public Notification requested1 linked violation
December 2, 1991State Public Notification issued1 linked violation
November 2, 1991State Violation/Reminder Notice1 linked violation
November 2, 1991State Public Notification requested1 linked violation
October 16, 1991State Public Notification requested1 linked violation
September 7, 1991State Public Notification requested1 linked violation
June 20, 1991State Public Notification requested1 linked violation
March 26, 1991State Public Notification requested1 linked violation
January 19, 1991State Public Notification requested1 linked violation
November 3, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 16, 1990State Public Notification requested1 linked violation
October 11, 1990State Administrative/Compliance Order without penalty issued1 linked violation
September 12, 1990State Public Notification requested1 linked violation
July 10, 1990State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
June 7, 1990State Public Notification received3 linked violations
May 23, 1990State Public Notification requested1 linked violation
May 3, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 3, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 19, 1990State Public Notification requested1 linked violation
September 9, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record

Contact

ALDRIDGE, CHERYL

815-827-3309

MAPLE PARK, IL 60151