LAKE ZURICH, IL · Lake County
LAKE ZURICH Water System
Consumer Confidence Report status
LAKE ZURICH 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 no open violations for LAKE ZURICH.
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)
- IL0970850
- System type
- Community Water System
- Population served
- 19,759
- Service connections
- 6,862
- Ownership
- local government
- Water source
- groundwater (wells)
LAKE ZURICH is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 19,759 people from groundwater.
As of August 1, 2026, its federal record holds 31 entries between 1977 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
Of the 31, 3 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 and inorganic chemicals.
Violation history
Monitoring, Regular
—Combined Radium (-226 and -228)
October 1, 2023 – December 31, 2023
ResolvedMonitoring, Regular
—Combined Radium (-226 and -228)
January 1, 2023 – December 31, 2023
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2009 – June 30, 2009
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
January 1, 2009 – March 31, 2009
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 2008 – December 31, 2008
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
July 1, 2008 – September 30, 2008
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2008 – June 30, 2008
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
January 1, 2008 – March 31, 2008
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 2007 – December 31, 2007
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
July 1, 2007 – September 30, 2007
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2007 – June 30, 2007
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
January 1, 2007 – March 31, 2007
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 2006 – December 31, 2006
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
July 1, 2006 – September 30, 2006
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2006 – June 30, 2006
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2005 – June 30, 2005
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
January 1, 2005 – March 31, 2005
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2004 – June 30, 2004
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
January 1, 2004 – March 31, 2004
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
July 1, 2003 – September 30, 2003
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
April 1, 2003 – June 30, 2003
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
January 1, 2003 – March 31, 2003
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 1, 2002 – December 31, 2002
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
May 1, 1999 – September 30, 2002
ResolvedMaximum Contaminant Level Violation, Average
Health-basedBarium
July 1, 1995 – September 30, 1995
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
June 1, 1995 – April 30, 1999
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
May 1, 1995 – April 30, 1999
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
May 17, 1991 – May 16, 1995
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
October 4, 1985 – October 15, 1986
ResolvedMaximum Contaminant Level Violation, Average
Health-basedGross Alpha, Excl. Radon and U
March 31, 1981 – March 30, 1985
ResolvedMonitoring, 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, 2023 – December 31, 2023 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| January 1, 2023 – December 31, 2023 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Resolved |
| April 1, 2009 – June 30, 2009 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| January 1, 2009 – March 31, 2009 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| October 1, 2008 – December 31, 2008 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| July 1, 2008 – September 30, 2008 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| April 1, 2008 – June 30, 2008 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| January 1, 2008 – March 31, 2008 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| October 1, 2007 – December 31, 2007 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | 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 |
| 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 |
| April 1, 2005 – June 30, 2005 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| January 1, 2005 – March 31, 2005 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | 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 |
| 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 |
| May 1, 1999 – September 30, 2002 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| July 1, 1995 – September 30, 1995 | Maximum Contaminant Level Violation, Average | Barium | Health-based | Resolved |
| June 1, 1995 – April 30, 1999 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| May 1, 1995 – April 30, 1999 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| May 17, 1991 – May 16, 1995 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| October 4, 1985 – October 15, 1986 | Maximum Contaminant Level Violation, Average | Combined Radium (-226 and -228) | Health-based | Resolved |
| March 31, 1981 – March 30, 1985 | Maximum Contaminant Level Violation, Average | Gross Alpha, Excl. Radon and U | 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
- December 26, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- October 10, 2024State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- June 7, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- June 7, 2024State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- January 11, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 11, 2024State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- January 11, 2024State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 11, 2024State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- August 28, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- July 15, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- April 21, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- March 2, 2009State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- January 14, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 14, 2009State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 1, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- October 17, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- October 17, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- September 8, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- July 17, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- July 17, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- April 16, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- February 28, 2008State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- January 17, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 17, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 3, 2007State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- October 18, 2007State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- October 18, 2007State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- August 6, 2007State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- July 18, 2007State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- July 18, 2007State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- July 3, 2007State Bilateral Compliance Agreement signedgeneral compliance action — not tied to a specific violation on record
- April 24, 2007State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- March 6, 2007State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- January 18, 2007State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 16, 2007State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- October 19, 2006State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- October 12, 2006State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- July 10, 2006State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- June 14, 2006State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- April 11, 2006State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- April 11, 2006State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- October 7, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- July 8, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 6, 2004State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- August 12, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- June 30, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- March 30, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- October 10, 2003State Public Notification requested991 linked violations
- July 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
- February 21, 2003State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- January 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- December 20, 2001State Bilateral Compliance Agreement signedgeneral compliance action — not tied to a specific violation on record
- February 1, 1996State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- September 30, 1995State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- July 17, 1995State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- July 17, 1995State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- October 1, 1992State Public Notification received1 linked violation
- August 24, 1992State Public Notification requested1 linked violation
- July 1, 1992State Public Notification received1 linked violation
- June 4, 1992State Public Notification received1 linked violation
- January 21, 1992State Public Notification received1 linked violation
- December 19, 1991State Administrative/Compliance Order without penalty issued1 linked violation
- October 28, 1991State Public Notification received1 linked violation
- October 16, 1991State Public Notification requested1 linked violation
- June 20, 1991State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- June 6, 1991State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
- October 15, 1986State Compliance achieved1 linked violation
Common questions
Is LAKE ZURICH required to publish a Consumer Confidence Report?
- Yes. LAKE ZURICH 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 LAKE ZURICH’s next Consumer Confidence Report due?
- LAKE ZURICH’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does LAKE ZURICH have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for LAKE ZURICH.
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
SCHMITT, STEVEN
847-540-1696
LAKE ZURICH, IL 60047