Is COLCHESTER required to publish a Consumer Confidence Report?

Yes. COLCHESTER 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 COLCHESTER’s next Consumer Confidence Report due?

COLCHESTER’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

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.

COLCHESTER, IL · McDonough County

COLCHESTER Water System

Consumer Confidence Report status

COLCHESTER 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 COLCHESTER.

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

COLCHESTER is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,395 people from surface water.

As of August 1, 2026, its federal record holds 19 entries between 1977 and 2009, all of which EPA lists as closed. Nothing has been added since 2009.

Of the 19, 4 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 Surface Water Treatment Rules, the Radionuclides and Revised Rad Rule, and the Total Coliform Rules.

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
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2008 – February 29, 2008
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
February 1, 2008 – February 29, 2008
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
December 1, 2007 – December 31, 2007
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
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
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
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
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2003 – September 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, 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	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
February 1, 2008 – February 29, 2008	Monthly 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
December 1, 2007 – December 31, 2007	Single 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
April 1, 2005 – June 30, 2005	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	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
July 1, 2003 – September 30, 2003	Monitoring, Regular	Combined Radium (-226 and -228)	—	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
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

Common questions

Is COLCHESTER required to publish a Consumer Confidence Report?: Yes. COLCHESTER 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 COLCHESTER’s next Consumer Confidence Report due?: COLCHESTER’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does COLCHESTER have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for COLCHESTER.
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

WEBER, JUSTIN W.

309-776-3105

COLCHESTER, IL 62326