COLCHESTER, IL · McDonough County

COLCHESTER 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): IL1090200
System type: Community Water System
Population served: 1,395
Service connections: 620
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 2009 – January 31, 2009
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2008 – March 31, 2008
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
February 11, 2008 – March 3, 2008
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2008 – February 29, 2008
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2008 – February 29, 2008
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2007 – December 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2007 – December 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
May 1, 2007 – May 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
April 1, 2007 – April 30, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2007 – March 31, 2007
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
March 1, 2007 – March 31, 2007
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
August 1, 2006 – August 31, 2006
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
April 1, 2005 – June 30, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
January 1, 2005 – March 31, 2005
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2004 – December 31, 2004
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
July 1, 2004 – September 30, 2004
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)
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
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1996 – June 30, 1996
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1994 – January 31, 1994
Archived
Monitoring, 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
January 1, 2009 – January 31, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
March 1, 2008 – March 31, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 11, 2008 – March 3, 2008	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
February 1, 2008 – February 29, 2008	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2008 – February 29, 2008	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
December 1, 2007 – December 31, 2007	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
December 1, 2007 – December 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
May 1, 2007 – May 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2007 – April 30, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2007 – March 31, 2007	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
March 1, 2007 – March 31, 2007	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
August 1, 2006 – August 31, 2006	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 2005 – March 31, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 2004 – December 31, 2004	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 2004 – September 30, 2004	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
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
June 1, 1996 – June 30, 1996	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
January 1, 1994 – January 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
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

August 1, 2009State Compliance achieved1 linked violation
February 18, 2009State Violation/Reminder Notice1 linked violation
May 8, 2008State Compliance achieved2 linked violations
May 5, 2008State Public Notification received1 linked violation
April 25, 2008State Public Notification received2 linked violations
April 14, 2008State Public Notification requested1 linked violation
April 14, 2008State Violation/Reminder Notice1 linked violation
April 1, 2008State Violation/Reminder Notice1 linked violation
April 1, 2008State Intentional no-action4 linked violations
April 1, 2008State Public Notification requested1 linked violation
April 1, 2008State Public Notification requested1 linked violation
April 1, 2008State Violation/Reminder Notice1 linked violation
March 10, 2008State Violation/Reminder Notice1 linked violation
March 10, 2008State Compliance achieved1 linked violation
March 5, 2008State Public Notification received1 linked violation
March 3, 2008State Compliance achieved1 linked violation
February 8, 2008State Compliance achieved2 linked violations
January 11, 2008State Violation/Reminder Notice1 linked violation
January 11, 2008State Public Notification requested1 linked violation
December 19, 2007State Public Notification received1 linked violation
December 11, 2007State Violation/Reminder Notice1 linked violation
December 11, 2007State Public Notification requested1 linked violation
July 20, 2007State Public Notification received2 linked violations
July 9, 2007State Compliance achieved4 linked violations
June 13, 2007State Public Notification requested1 linked violation
June 13, 2007State Violation/Reminder Notice1 linked violation
June 6, 2007State Violation/Reminder Notice1 linked violation
June 6, 2007State Intentional no-action1 linked violation
June 6, 2007State Public Notification requested1 linked violation
May 15, 2007State Public Notification received2 linked violations
April 11, 2007State Intentional no-action3 linked violations
April 11, 2007State Public Notification requested1 linked violation
April 11, 2007State Violation/Reminder Notice1 linked violation
April 11, 2007State Public Notification requested1 linked violation
April 11, 2007State Violation/Reminder Notice1 linked violation
December 29, 2006State Public Notification received1 linked violation
December 6, 2006State Public Notification requested1 linked violation
December 6, 2006State Intentional no-action1 linked violation
December 6, 2006State Violation/Reminder Notice1 linked violation
October 5, 2006State Compliance achieved1 linked violation
February 1, 2006State Compliance achieved2 linked violations
September 28, 2005State Public Notification received2 linked violations
September 7, 2005State Violation/Reminder Notice1 linked violation
September 7, 2005State Public Notification requested1 linked violation
September 7, 2005State Violation/Reminder Notice1 linked violation
September 7, 2005State Public Notification requested1 linked violation
July 14, 2005State Compliance achieved12 linked violations
July 8, 2005State Violation/Reminder Notice2 linked violations
July 8, 2005State Public Notification requested2 linked violations
May 24, 2005State Public Notification received2 linked violations
April 8, 2005State Public Notification requested2 linked violations
April 8, 2005State Violation/Reminder Notice2 linked violations
February 16, 2005State Public Notification received2 linked violations
January 13, 2005State Bilateral Compliance Agreement signed2 linked violations
January 10, 2005State Public Notification received1 linked violation
January 7, 2005State Violation/Reminder Notice1 linked violation
January 7, 2005State Public Notification requested1 linked violation
December 28, 2004State Formal Notice of Violation issued2 linked violations
December 14, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 14, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 2, 2004State Public Notification received1 linked violation
October 19, 2004State Public Notification requested1 linked violation
October 19, 2004State Violation/Reminder Notice1 linked violation
October 1, 2004State Public Notification received1 linked violation
July 13, 2004State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 10, 2004State Public Notification requested1 linked violation
July 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 10, 2004State Violation/Reminder Notice1 linked violation
June 3, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 3, 2004State Public Notification received1 linked violation
April 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 10, 2004State Public Notification requested1 linked violation
April 10, 2004State Violation/Reminder Notice1 linked violation
March 31, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 31, 2004State Public Notification received1 linked violation
March 4, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 4, 2004State Public Notification received1 linked violation
February 26, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 26, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 17, 2004State Bilateral Compliance Agreement signed10 linked violations
January 16, 2004State Formal Notice of Violation issued10 linked violations
January 10, 2004State Public Notification requested1 linked violation
January 10, 2004State Violation/Reminder Notice1 linked violation
December 17, 2003State Compliance achieved1 linked violation
December 17, 2003State Public Notification received1 linked violation
September 19, 2003State Public Notification received1 linked violation
July 10, 2003State Violation/Reminder Notice1 linked violation
July 10, 2003State Public Notification requested1 linked violation
June 11, 2003State Public Notification received1 linked violation
May 14, 2003State Public Notification requested1 linked violation
May 14, 2003State Violation/Reminder Notice1 linked violation
August 24, 1996State Public Notification requested1 linked violation
August 24, 1996State Violation/Reminder Notice1 linked violation
April 6, 1994State Public Notification received1 linked violation
March 16, 1994State Public Notification received1 linked violation
March 6, 1994State Public Notification requested1 linked violation
March 6, 1994State Violation/Reminder Notice1 linked violation

Contact

WEBER, JUSTIN W.

309-776-3105

COLCHESTER, IL 62326