UNION, IL · McHenry County
UNION Water System
Consumer Confidence Report status
UNION 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 1 item for UNION that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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)
- IL1110900
- System type
- Community Water System
- Population served
- 594
- Service connections
- 276
- Ownership
- local government
- Water source
- groundwater (wells)
UNION is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 594 people from groundwater.
As of August 1, 2026, its federal record holds 13 entries between 1977 and 2025, of which 1 remains open; none are health-based.
Of the 13, 5 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 Public Notice Rule and Revised PN Rule, and the Lead and Copper Rule.
Violation history
Notification, Known or Potential LSL
—LEAD AND COPPER RULE REVISIONS
July 2, 2025
UnaddressedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2025 – September 2, 2025
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
January 21, 2010 – January 25, 2010
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
July 1, 2009 – September 30, 2009
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2009 – June 30, 2009
ResolvedPublic Notification Violation for NPDWR Violation
—Public Notice
March 23, 2007 – May 17, 2007
ResolvedPublic Notification Violation without NPDWR Violation
—Public Notice
March 23, 2007 – May 17, 2007
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
July 1, 2006 – September 30, 2006
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
October 1, 2005 – December 31, 2005
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2005 – July 8, 2005
ResolvedMonitoring, Regular
—Barium
January 1, 2003 – March 31, 2003
ResolvedInitial Tap Sampling for Pb and Cu
—Lead and Copper Rule
October 1, 1994 – December 31, 1995
ResolvedMonitoring, 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 – July 8, 2005 | Consumer Confidence Report Complete Failure to Report | 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 |
| 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 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 Public Notification requested1 linked violation
- May 22, 2003State Violation/Reminder Notice1 linked violation
- December 31, 1995State Compliance achieved2 linked violations
- 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
Common questions
Is UNION required to publish a Consumer Confidence Report?
- Yes. UNION 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 UNION’s next Consumer Confidence Report due?
- UNION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does UNION have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show 1 item for UNION that is open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
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
WAGNER, ROBERT
815-923-4153
UNION, IL 60180