NORTHBROOK, IL · Cook County

SUNSET MHP 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): IL0310080
System type: Community Water System
Population served: 1,400
Service connections: 400
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 14, 2021
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2018 – April 17, 2018
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2016 – October 3, 2016
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2014 – June 23, 2015
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2013 – June 23, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2013 – March 31, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2012 – February 29, 2012
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2012 – March 26, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2011 – December 31, 2011
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2011 – June 27, 2012
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2011 – June 30, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2011 – March 31, 2011
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2010 – June 30, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2010 – March 31, 2010
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2009 – December 31, 2009
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)
July 10, 2008 – September 30, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
May 17, 2008 – May 26, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2008 – June 30, 2008
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2008 – March 31, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2007 – November 30, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2007 – December 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2007 – December 31, 2007
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2007 – August 31, 2007
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2007 – September 30, 2007
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2007 – September 18, 2007
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
Combined Radium (-226 and -228)
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
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 2005 – March 31, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
November 1, 2004 – November 30, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2004 – December 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2004 – December 8, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2004 – September 30, 2004
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
January 1, 2004 – March 31, 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)
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
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)
December 1, 1996 – December 31, 1996
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
May 1, 1994 – March 31, 1998
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
September 1, 1992 – September 30, 1992
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
April 5, 1990 – April 4, 1994
Resolved

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
December 30, 2020 – January 14, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 1, 2018 – April 17, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2016 – October 3, 2016	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2014 – June 23, 2015	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2013 – June 23, 2015	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2013 – March 31, 2013	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
February 1, 2012 – February 29, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2012 – March 26, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2011 – December 31, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2011 – June 27, 2012	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2011 – June 30, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2011 – March 31, 2011	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
April 1, 2010 – June 30, 2010	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2010 – March 31, 2010	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2009 – December 31, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2009 – September 30, 2009	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 10, 2008 – September 30, 2008	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 17, 2008 – May 26, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	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
December 1, 2007 – December 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2007 – November 30, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2007 – December 31, 2007	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
August 1, 2007 – August 31, 2007	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2007 – September 30, 2007	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2007 – September 18, 2007	Monitoring and Reporting (DBP)	Chlorine	—	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	Combined Radium (-226 and -228)	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
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
November 1, 2004 – November 30, 2004	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
October 1, 2004 – December 31, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
October 1, 2004 – December 8, 2004	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2004 – September 30, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
January 1, 2004 – March 31, 2004	Monitoring, Regular	Combined Radium (-226 and -228)	—	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
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
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
December 1, 1996 – December 31, 1996	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
May 1, 1994 – March 31, 1998	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
September 1, 1992 – September 30, 1992	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
April 5, 1990 – April 4, 1994	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

January 14, 2021State Compliance achieved1 linked violation
January 6, 2021State Violation/Reminder Notice1 linked violation
April 17, 2018State Compliance achieved1 linked violation
April 5, 2018State Violation/Reminder Notice1 linked violation
October 3, 2016State Compliance achieved1 linked violation
August 11, 2016State Violation/Reminder Notice1 linked violation
June 23, 2015State Compliance achieved2 linked violations
September 24, 2014State Violation/Reminder Notice1 linked violation
August 26, 2013State Violation/Reminder Notice1 linked violation
June 7, 2013State Compliance achieved1 linked violation
May 8, 2013State Public Notification received1 linked violation
April 18, 2013State Violation/Reminder Notice1 linked violation
April 18, 2013State Public Notification requested1 linked violation
June 27, 2012State Compliance achieved1 linked violation
April 2, 2012State Public Notification received2 linked violations
March 26, 2012State Compliance achieved2 linked violations
March 20, 2012State Compliance achieved1 linked violation
March 14, 2012State Violation/Reminder Notice1 linked violation
March 14, 2012State Public Notification requested1 linked violation
March 14, 2012State Violation/Reminder Notice1 linked violation
March 14, 2012State Public Notification requested1 linked violation
February 7, 2012State Public Notification received1 linked violation
January 13, 2012State Violation/Reminder Notice1 linked violation
January 13, 2012State Public Notification requested1 linked violation
September 20, 2011State Compliance achieved2 linked violations
September 2, 2011State Public Notification received1 linked violation
August 24, 2011State Violation/Reminder Notice1 linked violation
July 20, 2011State Violation/Reminder Notice1 linked violation
July 20, 2011State Public Notification requested1 linked violation
May 6, 2011State Public Notification received1 linked violation
April 19, 2011State Public Notification requested1 linked violation
April 19, 2011State Violation/Reminder Notice1 linked violation
September 27, 2010State Compliance achieved4 linked violations
September 9, 2010State Public Notification received1 linked violation
July 15, 2010State Public Notification requested1 linked violation
July 15, 2010State Violation/Reminder Notice1 linked violation
May 6, 2010State Public Notification received1 linked violation
April 14, 2010State Violation/Reminder Notice1 linked violation
April 14, 2010State Public Notification requested1 linked violation
February 1, 2010State Public Notification received1 linked violation
January 20, 2010State Violation/Reminder Notice1 linked violation
January 20, 2010State Public Notification requested1 linked violation
December 2, 2009State Formal Notice of Violation issued7 linked violations
November 23, 2009State Public Notification received2 linked violations
October 20, 2009State Violation/Reminder Notice1 linked violation
October 20, 2009State Public Notification requested1 linked violation
October 27, 2008State Public Notification received1 linked violation
October 17, 2008State Violation/Reminder Notice1 linked violation
October 17, 2008State Public Notification requested1 linked violation
October 14, 2008State Compliance achieved3 linked violations
August 14, 2008State Public Notification received1 linked violation
July 17, 2008State Public Notification requested1 linked violation
July 17, 2008State Violation/Reminder Notice1 linked violation
June 30, 2008State Bilateral Compliance Agreement signed3 linked violations
June 11, 2008State Violation/Reminder Notice1 linked violation
May 28, 2008State Public Notification received7 linked violations
May 26, 2008State Public Notification received1 linked violation
May 26, 2008State Compliance achieved1 linked violation
May 6, 2008State Compliance achieved3 linked violations
May 6, 2008State Bilateral Compliance Agreement signed6 linked violations
April 23, 2008State Formal Notice of Violation issued3 linked violations
April 16, 2008State Violation/Reminder Notice1 linked violation
April 16, 2008State Public Notification requested1 linked violation
February 19, 2008State Formal Notice of Violation issued6 linked violations
January 21, 2008State Compliance achieved2 linked violations
January 21, 2008State Compliance achieved1 linked violation
January 18, 2008State Violation/Reminder Notice1 linked violation
January 18, 2008State Public Notification requested1 linked violation
January 17, 2008State Violation/Reminder Notice1 linked violation
January 17, 2008State Public Notification requested1 linked violation
January 15, 2008State Public Notification requested1 linked violation
January 15, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 15, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 15, 2008State Violation/Reminder Notice1 linked violation
December 19, 2007State Violation/Reminder Notice1 linked violation
December 19, 2007State Public Notification requested1 linked violation
December 17, 2007State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 12, 2007State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 12, 2007State Violation/Reminder Notice1 linked violation
October 12, 2007State Public Notification requested1 linked violation
October 12, 2007State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 18, 2007State Compliance achieved1 linked violation
September 18, 2007State Violation/Reminder Notice1 linked violation
September 18, 2007State Public Notification requested1 linked violation
September 17, 2007State Public Notification requested1 linked violation
September 17, 2007State Violation/Reminder Notice1 linked violation
July 18, 2006State Public Notification received1 linked violation
July 10, 2006State Public Notification requested1 linked violation
July 10, 2006State Violation/Reminder Notice1 linked violation
May 24, 2006State Compliance achieved20 linked violations
April 11, 2006State Public Notification requested1 linked violation
April 11, 2006State Violation/Reminder Notice1 linked violation
February 21, 2006State Public Notification received1 linked violation
February 21, 2006State Public Notification received2 linked violations
January 10, 2006State Public Notification requested1 linked violation
January 10, 2006State Violation/Reminder Notice1 linked violation
December 15, 2005State Public Notification received1 linked violation
October 7, 2005State Public Notification requested1 linked violation
October 7, 2005State Violation/Reminder Notice1 linked violation
September 6, 2005State Public Notification received1 linked violation
July 18, 2005State Public Notification received1 linked violation
July 8, 2005State Public Notification requested1 linked violation
July 8, 2005State Violation/Reminder Notice1 linked violation
June 1, 2005State Compliance achieved1 linked violation
April 8, 2005State Violation/Reminder Notice1 linked violation
April 8, 2005State Public Notification requested1 linked violation
February 1, 2005State Public Notification received2 linked violations
January 27, 2005State Violation/Reminder Notice1 linked violation
January 27, 2005State Public Notification requested1 linked violation
January 19, 2005State Violation/Reminder Notice1 linked violation
January 19, 2005State Public Notification requested1 linked violation
January 7, 2005State Public Notification requested1 linked violation
January 7, 2005State Violation/Reminder Notice1 linked violation
December 8, 2004State Compliance achieved1 linked violation
November 29, 2004State Public Notification received1 linked violation
October 19, 2004State Violation/Reminder Notice1 linked violation
October 19, 2004State Public Notification requested1 linked violation
September 17, 2004State Public Notification received1 linked violation
July 10, 2004State Public Notification requested1 linked violation
July 10, 2004State Violation/Reminder Notice1 linked violation
May 21, 2004State Public Notification requested1 linked violation
May 21, 2004State Violation/Reminder Notice1 linked violation
April 13, 2004State Compliance achieved1 linked violation
April 10, 2004State Violation/Reminder Notice1 linked violation
April 10, 2004State Public Notification requested1 linked violation
March 26, 2004State Public Notification received2 linked violations
March 19, 2004State Public Notification received1 linked violation
March 3, 2004State Bilateral Compliance Agreement signed17 linked violations
January 15, 2004State Formal Notice of Violation issued17 linked violations
January 10, 2004State Public Notification requested1 linked violation
January 10, 2004State Violation/Reminder Notice1 linked violation
December 24, 2003State Public Notification received1 linked violation
July 10, 2003State Public Notification requested2 linked violations
April 10, 2003State Public Notification requested2 linked violations
April 10, 2003State Violation/Reminder Notice2 linked violations
January 10, 2003State Violation/Reminder Notice2 linked violations
January 10, 2003State Public Notification requested2 linked violations
September 30, 2002State Violation/Reminder Notice1 linked violation
September 30, 2002State Public Notification requested1 linked violation
April 11, 2002State Bilateral Compliance Agreement signed7 linked violations
June 1, 1997State Public Notification received2 linked violations
April 3, 1997State Public Notification received2 linked violations
March 11, 1997State Public Notification received1 linked violation
February 23, 1997State Violation/Reminder Notice1 linked violation
February 23, 1997State Public Notification requested1 linked violation
June 1, 1995State Public Notification received2 linked violations
September 30, 1994State Public Notification received2 linked violations
September 30, 1994State Public Notification received2 linked violations
June 7, 1994State Public Notification received3 linked violations
March 18, 1994State Public Notification received1 linked violation
March 18, 1994State Public Notification received1 linked violation
December 1, 1993State Public Notification received2 linked violations
December 1, 1993State Public Notification received1 linked violation
June 5, 1993State Public Notification requested1 linked violation
June 5, 1993State Violation/Reminder Notice1 linked violation
June 1, 1993State Public Notification received1 linked violation
May 21, 1993State Public Notification received1 linked violation
December 1, 1992State Public Notification received1 linked violation
October 31, 1992State Violation/Reminder Notice3 linked violations
October 31, 1992State Public Notification requested3 linked violations
September 10, 1992State Public Notification received1 linked violation
June 4, 1992State Public Notification received1 linked violation
March 1, 1992State Public Notification received1 linked violation
September 1, 1991State Public Notification received1 linked violation
July 23, 1991State Public Notification requested1 linked violation
May 23, 1991State Public Notification received1 linked violation
March 5, 1991State Public Notification received1 linked violation
August 20, 1990State Public Notification received2 linked violations
August 4, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 31, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 15, 1990State Public Notification received1 linked violation

Contact

WORTH, DAVID

847-881-2007

NORTHBROOK, IL 60062