MODESTO, IL · Macoupin County

MODESTO 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): IL1170600
System type: Community Water System
Population served: 182
Service connections: 120
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
May 30, 2025 – July 20, 2025
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2025 – June 30, 2025
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – August 3, 2023
Resolved
Single Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2021 – October 31, 2021
Resolved
Monthly Turbidity Exceed (Enhanced SWTR)
Health-based
Interim Enhanced Surface Water Treatment Rule
October 1, 2021 – October 31, 2021
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
April 1, 2017 – June 30, 2017
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2009 – August 31, 2009
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
April 1, 1995 – April 30, 1995
Archived
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
October 1, 1994 – December 31, 1994
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
January 1, 1994 – January 19, 1994
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
October 1, 1993 – December 31, 1993
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1993 – August 31, 1993
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
May 30, 2025 – July 20, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Resolved
April 1, 2025 – June 30, 2025	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
July 1, 2023 – August 3, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2021 – October 31, 2021	Single Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
October 1, 2021 – October 31, 2021	Monthly Turbidity Exceed (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	Health-based	Resolved
April 1, 2017 – June 30, 2017	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
August 1, 2009 – August 31, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 1995 – April 30, 1995	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
October 1, 1994 – December 31, 1994	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
January 1, 1994 – January 19, 1994	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
October 1, 1993 – December 31, 1993	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved
August 1, 1993 – August 31, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived

Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

October 31, 2025State Public Notification received1 linked violation
October 1, 2025State Intentional no-action1 linked violation
October 1, 2025State Public Notification requested1 linked violation
October 1, 2025State Violation/Reminder Notice1 linked violation
September 16, 2025State Compliance achieved2 linked violations
July 22, 2025State Public Notification received1 linked violation
July 20, 2025State Compliance achieved1 linked violation
June 25, 2025State Violation/Reminder Notice1 linked violation
April 29, 2025State Intentional no-action1 linked violation
April 29, 2025State Violation/Reminder Notice1 linked violation
April 29, 2025State Public Notification requested1 linked violation
August 3, 2023State Compliance achieved1 linked violation
July 24, 2023State Violation/Reminder Notice1 linked violation
January 14, 2022State Compliance achieved3 linked violations
December 15, 2021State Public Notification received1 linked violation
December 15, 2021State Public Notification received1 linked violation
November 16, 2021State Public Notification received1 linked violation
November 15, 2021State Intentional no-action3 linked violations
November 15, 2021State Violation/Reminder Notice1 linked violation
November 15, 2021State Public Notification requested1 linked violation
November 15, 2021State Violation/Reminder Notice1 linked violation
November 15, 2021State Public Notification requested1 linked violation
October 14, 2021State Public Notification requested1 linked violation
October 14, 2021State Violation/Reminder Notice1 linked violation
September 18, 2017State Compliance achieved1 linked violation
July 28, 2017State Intentional no-action7 linked violations
July 19, 2017State Violation/Reminder Notice2 linked violations
July 19, 2017State Public Notification requested1 linked violation
March 1, 2010State Compliance achieved2 linked violations
October 7, 2009State Public Notification received1 linked violation
September 14, 2009State Violation/Reminder Notice2 linked violations
September 14, 2009State Public Notification requested1 linked violation
October 15, 2005State Compliance achieved2 linked violations
January 31, 1996State Compliance achieved4 linked violations
July 1, 1995State Violation/Reminder Notice3 linked violations
July 1, 1995State Public Notification requested3 linked violations
April 1, 1995State Violation/Reminder Notice1 linked violation
April 1, 1995State Public Notification requested1 linked violation
November 21, 1994State Public Notification requested1 linked violation
November 21, 1994State Violation/Reminder Notice1 linked violation
January 19, 1994State Compliance achieved2 linked violations
January 19, 1994State Compliance achieved1 linked violation
January 19, 1994State Compliance achieved1 linked violation
October 10, 1993State Public Notification requested1 linked violation
October 10, 1993State Violation/Reminder Notice1 linked violation
October 10, 1993State Violation/Reminder Notice1 linked violation
October 10, 1993State Public Notification requested1 linked violation
October 8, 1993State Violation/Reminder Notice1 linked violation
October 8, 1993State Public Notification requested1 linked violation
September 16, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 16, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 22, 1990State Public Notification receivedgeneral compliance action — not tied to a specific violation on record

Contact

THOMPSON, TOM M.

217-414-0048

MODESTO, IL 62667