MONMOUTH, IL · Warren County

MONMOUTH 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): IL1870150
System type: Community Water System
Population served: 8,902
Service connections: 3,800
Ownership: local government
Water source: groundwater (wells)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
November 28, 2024 – November 20, 2024
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 2024 – December 31, 2024
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)
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)
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
August 1, 2002 – September 30, 2002
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
October 1, 1997 – September 30, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 1994 – July 31, 1994
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
September 1, 1988 – August 31, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Gross Alpha, Excl. Radon and U
May 15, 1986 – May 14, 1990
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
September 14, 1984 – September 13, 1988
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
May 1, 1983 – November 14, 1985
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
May 15, 1980 – May 14, 1983
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
November 28, 2024 – November 20, 2024	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
October 1, 2024 – December 31, 2024	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
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
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
August 1, 2002 – September 30, 2002	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
October 1, 1997 – September 30, 2001	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
July 1, 1994 – July 31, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
July 1, 1994 – July 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
September 1, 1988 – August 31, 1992	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 15, 1986 – May 14, 1990	Maximum Contaminant Level Violation, Average	Gross Alpha, Excl. Radon and U	Health-based	Resolved
September 14, 1984 – September 13, 1988	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
May 1, 1983 – November 14, 1985	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Resolved
May 15, 1980 – May 14, 1983	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	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

March 11, 2025State Compliance achieved1 linked violation
December 17, 2024State Public Notification received1 linked violation
December 13, 2024State Violation/Reminder Notice1 linked violation
November 20, 2024State Compliance achieved1 linked violation
November 6, 2024State Formal Notice of Violation issued1 linked violation
October 28, 2024State Violation/Reminder Notice1 linked violation
October 28, 2024State Public Notification requested1 linked violation
October 21, 2005State Public Notification received2 linked violations
September 21, 2005State Public Notification requested1 linked violation
September 21, 2005State Public Notification requested1 linked violation
September 21, 2005State Violation/Reminder Notice1 linked violation
September 21, 2005State Violation/Reminder Notice1 linked violation
August 15, 2005State Public Notification received1 linked violation
August 15, 2005State Public Notification received1 linked violation
July 12, 2005State Compliance achieved24 linked violations
July 8, 2005State Public Notification requested1 linked violation
July 8, 2005State Public Notification requested1 linked violation
July 8, 2005State Violation/Reminder Notice1 linked violation
July 8, 2005State Violation/Reminder Notice1 linked violation
May 5, 2005State Public Notification received1 linked violation
May 5, 2005State Public Notification received1 linked violation
April 8, 2005State Public Notification requested1 linked violation
April 8, 2005State Public Notification requested1 linked violation
April 8, 2005State Violation/Reminder Notice1 linked violation
April 8, 2005State Violation/Reminder Notice1 linked violation
February 25, 2005State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 25, 2005State Public Notification received1 linked violation
January 7, 2005State Public Notification requested1 linked violation
January 7, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 7, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 7, 2005State Violation/Reminder Notice1 linked violation
December 16, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 16, 2004State Public Notification received1 linked violation
October 19, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 19, 2004State Public Notification requested1 linked violation
October 19, 2004State Violation/Reminder Notice1 linked violation
October 19, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 3, 2004State Public Notification received1 linked violation
September 3, 2004State Public Notification receivedgeneral 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 Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 10, 2004State Violation/Reminder Notice1 linked violation
July 10, 2004State Public Notification requested1 linked violation
June 10, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
June 10, 2004State Public Notification received1 linked violation
April 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 10, 2004State Violation/Reminder Notice1 linked violation
April 10, 2004State Public Notification requested1 linked violation
April 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
March 17, 2004State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 17, 2004State Public Notification received1 linked violation
February 17, 2004State Bilateral Compliance Agreement signed20 linked violations
January 10, 2004State Public Notification requested1 linked violation
January 10, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 10, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 10, 2004State Violation/Reminder Notice1 linked violation
December 19, 2003State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
December 19, 2003State Formal Notice of Violation issued20 linked violations
December 19, 2003State Public Notification received1 linked violation
August 25, 2003State Public Notification received1 linked violation
August 25, 2003State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
July 10, 2003State Public Notification requested1 linked violation
July 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 10, 2003State Violation/Reminder Notice1 linked violation
May 1, 2003State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
May 1, 2003State Public Notification received1 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 requestedgeneral compliance action — not tied to a specific violation on record
March 11, 2003State Formal Notice of Violation issued11 linked violations
January 10, 2003State Public Notification requested1 linked violation
January 10, 2003State Violation/Reminder Notice1 linked violation
January 10, 2003State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 10, 2003State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 25, 1996State Public Notification received2 linked violations
November 11, 1996State Public Notification received2 linked violations
July 25, 1995State Public Notification received2 linked violations
July 21, 1995State Public Notification received2 linked violations
August 27, 1994State Public Notification received1 linked violation
September 18, 1993State Public Notification received1 linked violation
April 8, 1991State Public Notification received1 linked violation
December 18, 1990State Public Notification requested1 linked violation
December 12, 1990State Public Notification received1 linked violation
August 23, 1990State Public Notification received1 linked violation
July 17, 1990State Compliance achieved2 linked violations
May 19, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 19, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 18, 1990State Public Notification received2 linked violations
April 19, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
April 19, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 7, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
March 19, 1990State Public Notification received2 linked violations
March 15, 1990State Public Notification requested2 linked violations
November 27, 1989State Public Notification received2 linked violations
October 12, 1989State Public Notification requested2 linked violations
September 24, 1989State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 24, 1989State Public Notification requested1 linked violation
June 9, 1989State Public Notification requested4 linked violations
October 22, 1988State Public Notification requested1 linked violation
October 1, 1988State Public Notification received3 linked violations
September 30, 1985State Public Notification received37 linked violations

Contact

BLEDSOE, BRAYDEN

309-734-4026

MONMOUTH, IL 61462