MONMOUTH, IL · Warren County

LITTLE SWAN LAKE SD Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): IL1875050
System type: Community Water System
Population served: 438
Service connections: 175
Ownership: local government
Water source: groundwater (wells)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
July 1, 2025
Unaddressed
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2022 – January 25, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2011 – August 3, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1998 – April 30, 1998
Archived
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 1997 – August 31, 1997
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1997 – January 31, 1997
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 1996 – August 31, 1996
Archived
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1995 – April 30, 1995
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1992 – May 31, 1992
Archived
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
June 1, 1984 – November 14, 1985
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Fluoride
June 1, 1981 – May 31, 1984
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Unaddressed no corrective action on record yetResolved 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
July 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
December 30, 2022 – January 25, 2023	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2011 – August 3, 2011	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 1998 – April 30, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1997 – August 31, 1997	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Archived
January 1, 1997 – January 31, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
August 1, 1996 – August 31, 1996	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
April 1, 1995 – April 30, 1995	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
July 1, 1994 – July 31, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
May 1, 1992 – May 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 1, 1984 – November 14, 1985	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Resolved
June 1, 1981 – May 31, 1984	Maximum Contaminant Level Violation, Average	Fluoride	Health-based	Archived
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 21, 2025State Public Notification requested1 linked violation
October 21, 2025State Violation/Reminder Notice1 linked violation
January 24, 2023State Violation/Reminder Notice2 linked violations
July 29, 2011State Violation/Reminder Notice2 linked violations
June 27, 1998State Public Notification requested1 linked violation
June 27, 1998State Violation/Reminder Notice1 linked violation
November 8, 1997State Violation/Reminder Notice1 linked violation
November 8, 1997State Public Notification requested1 linked violation
November 6, 1997State Public Notification received1 linked violation
November 9, 1996State Public Notification requested1 linked violation
November 9, 1996State Violation/Reminder Notice1 linked violation
November 7, 1996State Public Notification received1 linked violation
October 8, 1995State Violation/Reminder Notice1 linked violation
October 8, 1995State Public Notification requested1 linked violation
July 8, 1995State Public Notification requested1 linked violation
July 8, 1995State Public Notification received1 linked violation
July 8, 1995State Violation/Reminder Notice1 linked violation
October 9, 1994State Violation/Reminder Notice4 linked violations
July 18, 1992State Violation/Reminder Notice1 linked violation
July 20, 1991State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
July 20, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Contact

NELSON, RICHARD

309-333-3762

MONMOUTH, IL 61462