UNION, IL · McHenry County

UNION 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): IL1110900
System type: Community Water System
Population served: 594
Service connections: 276
Ownership: local government
Water source: groundwater (wells)

Violation history

Notification, Known or Potential LSL
—
LEAD AND COPPER RULE REVISIONS
July 2, 2025
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – September 2, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
January 21, 2010 – January 25, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2009 – September 30, 2009
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2009 – June 30, 2009
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
March 23, 2007 – May 17, 2007
Resolved
Public Notification Violation without NPDWR Violation
—
Public Notice
March 23, 2007 – May 17, 2007
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2006 – September 30, 2006
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2005 – December 31, 2005
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2005 – October 3, 2005
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2004 – October 3, 2005
Resolved
Monitoring, Regular
—
Barium
January 1, 2003 – March 31, 2003
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 1994 – December 31, 1995
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 1991 – March 31, 1991
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Unaddressed no corrective action on record yetResolved 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 2, 2025	Notification, Known or Potential LSL	LEAD AND COPPER RULE REVISIONS	—	Unaddressed
July 1, 2025 – September 2, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 21, 2010 – January 25, 2010	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2009 – June 30, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
March 23, 2007 – May 17, 2007	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
March 23, 2007 – May 17, 2007	Public Notification Violation without NPDWR Violation	Public Notice	—	Resolved
July 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2005 – October 3, 2005	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2004 – October 3, 2005	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2003 – March 31, 2003	Monitoring, Regular	Barium	—	Resolved
October 1, 1994 – December 31, 1995	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 1991 – March 31, 1991	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

September 2, 2025State Compliance achieved1 linked violation
July 30, 2025State Violation/Reminder Notice1 linked violation
July 3, 2025State Public Notification requested1 linked violation
July 3, 2025State Violation/Reminder Notice1 linked violation
February 10, 2010State Violation/Reminder Notice1 linked violation
February 2, 2010State Public Notification received1 linked violation
January 25, 2010State Compliance achieved1 linked violation
December 9, 2009State Compliance achieved2 linked violations
November 10, 2009State Bilateral Compliance Agreement signed2 linked violations
October 22, 2009State Public Notification requested1 linked violation
October 22, 2009State Violation/Reminder Notice1 linked violation
September 11, 2009State Formal Notice of Violation issued2 linked violations
August 24, 2009State Public Notification received1 linked violation
July 15, 2009State Public Notification requested1 linked violation
July 15, 2009State Violation/Reminder Notice1 linked violation
May 17, 2007State Public Notification received1 linked violation
May 17, 2007State Compliance achieved2 linked violations
April 16, 2007State Violation/Reminder Notice2 linked violations
March 23, 2007State Public Notification received1 linked violation
October 17, 2006State Compliance achieved5 linked violations
October 16, 2006State Violation/Reminder Notice1 linked violation
September 13, 2006State Violation/Reminder Notice3 linked violations
July 31, 2006State Formal Notice of Violation issued5 linked violations
July 20, 2006State Violation/Reminder Notice2 linked violations
March 22, 2006State Public Notification requested1 linked violation
March 6, 2006State Compliance achieved1 linked violation
October 3, 2005State Compliance achieved2 linked violations
July 8, 2005State Compliance achieved1 linked violation
August 23, 2004State Violation/Reminder Notice1 linked violation
August 9, 2004State Compliance achieved1 linked violation
July 10, 2004State Violation/Reminder Notice1 linked violation
July 1, 2004State Violation/Reminder Notice1 linked violation
June 23, 2003State Compliance achieved1 linked violation
May 22, 2003State Violation/Reminder Notice1 linked violation
May 22, 2003State Public Notification requested1 linked violation
February 19, 1993State Compliance achieved7 linked violations
September 17, 1992State Hook-up/Extension Ban1 linked violation
January 1, 1991State Public Notification requested7 linked violations
January 1, 1991State Violation/Reminder Notice7 linked violations

Contact

WAGNER, ROBERT

815-923-4153

UNION, IL 60180