Is KNOXVILLE required to publish a Consumer Confidence Report?

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

KNOXVILLE’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.

KNOXVILLE, IL · Knox County

KNOXVILLE Water System

Consumer Confidence Report status

KNOXVILLE 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 KNOXVILLE.

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): IL0950300
System type: Community Water System
Population served: 3,120
Service connections: 1,320
Ownership: local government
Water source: groundwater (wells)

KNOXVILLE is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 3,120 people from groundwater.

As of August 1, 2026, its federal record holds 18 entries between 1977 and 2007, all of which EPA lists as closed. Nothing has been added since 2007.

Of the 18, 1 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 Total Coliform Rules, and inorganic chemicals.

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2007 – August 31, 2007
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
Gross Alpha, Excl. Radon and U
June 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 1, 2001 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
June 1, 1998 – May 31, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 1, 1997 – November 30, 2001
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
May 16, 1994 – May 15, 1998
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
January 1, 1990 – November 30, 1993
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 9, 1985 – December 8, 1989
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
May 1, 1985 – November 14, 1985
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 1, 1984 – September 30, 1988
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
October 17, 1980 – October 16, 1984
Resolved
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
August 1, 2007 – August 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	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
June 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
December 1, 2001 – September 30, 2002	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
June 1, 1998 – May 31, 2002	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
December 1, 1997 – November 30, 2001	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 16, 1994 – May 15, 1998	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
January 1, 1990 – November 30, 1993	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
December 9, 1985 – December 8, 1989	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 1, 1985 – November 14, 1985	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Resolved
October 1, 1984 – September 30, 1988	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 17, 1980 – October 16, 1984	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

May 16, 2024State Compliance achieved1 linked violation
December 3, 2023State Violation/Reminder Notice1 linked violation
March 1, 2008State Compliance achieved1 linked violation
October 22, 2007State Public Notification received1 linked violation
September 18, 2007State Violation/Reminder Notice1 linked violation
September 18, 2007State Public Notification requested1 linked violation
June 28, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
April 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2004State Public Notification requested1 linked violation
April 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 8, 2004State Public Notification received1 linked violation
April 8, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 31, 2004State Compliance achieved17 linked violations
March 1, 2004State Public Notification received1 linked violation
January 21, 2004State Bilateral Compliance Agreement signed46 linked violations
January 10, 2004State Public Notification requested1 linked violation
January 10, 2004State Public Notification requested1 linked violation
January 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 19, 2003State Formal Notice of Violation issued15 linked violations
September 19, 2003State Public Notification received1 linked violation
September 19, 2003State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 10, 2003State Public Notification requested2 linked violations
July 10, 2003State Violation/Reminder Notice1 linked violation
July 10, 2003State Violation/Reminder Notice1 linked violation
April 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 10, 2003State Public Notification requested1 linked violation
April 10, 2003State Violation/Reminder Notice1 linked violation
April 10, 2003State Public Notification requested1 linked violation
January 10, 2003State Public Notification requested1 linked violation
January 10, 2003State Violation/Reminder Notice2 linked violations
January 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 30, 2002State Violation/Reminder Notice1 linked violation
September 30, 2002State Public Notification requested1 linked violation
October 26, 2001State Bilateral Compliance Agreement signed11 linked violations
December 15, 1998State Public Notification requested1 linked violation
December 15, 1998State Violation/Reminder Notice1 linked violation
May 28, 1997State Public Notification received2 linked violations
April 25, 1997State Public Notification received2 linked violations
February 21, 1997State Public Notification received2 linked violations
January 28, 1997State Public Notification received2 linked violations
December 27, 1996State Public Notification received2 linked violations
December 24, 1996State Public Notification received2 linked violations
December 2, 1996State Public Notification received2 linked violations
October 25, 1996State Public Notification received1 linked violation
August 26, 1996State Public Notification received2 linked violations
August 25, 1996State Public Notification received2 linked violations
July 26, 1996State Public Notification received2 linked violations
June 25, 1996State Public Notification received2 linked violations
May 25, 1996State Public Notification received2 linked violations
April 22, 1996State Public Notification received2 linked violations
March 22, 1996State Public Notification received2 linked violations
February 23, 1996State Public Notification received2 linked violations
January 23, 1996State Public Notification received1 linked violation
December 29, 1995State Public Notification received2 linked violations
November 28, 1995State Public Notification received2 linked violations
October 25, 1995State Public Notification received2 linked violations
September 28, 1995State Public Notification received2 linked violations
July 28, 1995State Public Notification received2 linked violations
June 26, 1995State Public Notification received1 linked violation
May 26, 1995State Public Notification received2 linked violations
April 26, 1995State Public Notification received2 linked violations
January 26, 1995State Public Notification received2 linked violations
December 27, 1994State Public Notification received2 linked violations
November 23, 1994State Public Notification received2 linked violations
October 27, 1994State Public Notification received2 linked violations
September 28, 1994State Public Notification received1 linked violation
August 25, 1994State Public Notification received1 linked violation
August 25, 1994State Public Notification received4 linked violations
July 25, 1994State Public Notification received1 linked violation
June 27, 1994State Public Notification received1 linked violation
May 26, 1994State Public Notification received1 linked violation
May 16, 1994State Public Notification received1 linked violation
April 26, 1994State Public Notification received1 linked violation
April 26, 1994State Public Notification received3 linked violations
April 1, 1994State Public Notification received1 linked violation
February 25, 1994State Public Notification received1 linked violation
February 25, 1994State Public Notification received3 linked violations
January 1, 1994State Public Notification received1 linked violation
December 1, 1993State Public Notification received1 linked violation
November 23, 1993State Public Notification received2 linked violations
October 26, 1993State Public Notification received4 linked violations
October 26, 1993State Public Notification received2 linked violations
September 1, 1993State Public Notification received2 linked violations
August 25, 1993State Public Notification received2 linked violations
May 25, 1993State Public Notification received2 linked violations
April 23, 1993State Public Notification received2 linked violations
March 20, 1993State Public Notification received2 linked violations
February 26, 1993State Public Notification received2 linked violations
January 26, 1993State Public Notification received2 linked violations
January 4, 1993State Public Notification received2 linked violations
November 21, 1992State Public Notification received2 linked violations
October 24, 1992State Public Notification received2 linked violations
September 25, 1992State Public Notification received2 linked violations
September 8, 1992State Public Notification received2 linked violations
August 24, 1992State Public Notification received2 linked violations
August 5, 1992State Public Notification received2 linked violations
June 13, 1992State Violation/Reminder Notice1 linked violation
June 13, 1992State Public Notification requested1 linked violation
June 11, 1992State Public Notification received1 linked violation
June 4, 1992State Public Notification received2 linked violations
June 3, 1992State Public Notification received2 linked violations
December 27, 1991State Public Notification received2 linked violations
October 25, 1991State Public Notification received2 linked violations
September 27, 1991State Public Notification received2 linked violations
August 24, 1991State Public Notification received2 linked violations
July 24, 1991State Public Notification received2 linked violations
June 25, 1991State Public Notification received2 linked violations
May 29, 1991State Public Notification received2 linked violations
April 22, 1991State Public Notification received2 linked violations
February 21, 1991State Public Notification received2 linked violations
January 22, 1991State Public Notification received2 linked violations
December 23, 1990State Public Notification received3 linked violations
November 24, 1990State Public Notification received3 linked violations
September 21, 1990State Public Notification received2 linked violations
August 23, 1990State Public Notification received3 linked violations
July 25, 1990State Public Notification received2 linked violations
June 5, 1990State Compliance achieved3 linked violations
March 23, 1990State Public Notification received3 linked violations
February 24, 1990State Public Notification received3 linked violations
January 22, 1990State Public Notification received3 linked violations
December 4, 1989State Public Notification received3 linked violations
October 25, 1989State Public Notification received2 linked violations
May 25, 1989State Public Notification received2 linked violations
November 14, 1985State Compliance achieved2 linked violations

Common questions

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

JOHNSON, MICHAEL A.

309-289-2512

KNOXVILLE, IL 61448