MASCOUTAH, IL · St. Clair County

MASCOUTAH 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): IL1630800
System type: Community Water System
Population served: 8,759
Service connections: 3,992
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
July 1, 2025
Unaddressed
Treatment Technique (SWTR and GWR)
Health-based
Long Term 2 Enhanced Surface Water Treatment Rule
June 1, 2014 – June 30, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2005 – September 30, 2005
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
January 1, 1997 – January 31, 1997
Archived
Maximum Contaminant Level Violation, Average
Health-based
Atrazine
April 1, 1995 – June 30, 1995
Resolved

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	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Unaddressed
June 1, 2014 – June 30, 2014	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Health-based	Resolved
September 1, 2005 – September 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 1997 – January 31, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Archived
April 1, 1995 – June 30, 1995	Maximum Contaminant Level Violation, Average	Atrazine	Health-based	Resolved

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

November 18, 2025State Violation/Reminder Notice1 linked violation
September 2, 2014State Public Notification received1 linked violation
August 6, 2014State Compliance achieved1 linked violation
July 30, 2014State Public Notification requested1 linked violation
July 30, 2014State Violation/Reminder Notice1 linked violation
April 1, 2006State Compliance achieved1 linked violation
November 18, 2005State Public Notification received1 linked violation
November 3, 2005State Public Notification requested1 linked violation
November 3, 2005State Violation/Reminder Notice1 linked violation
August 31, 1996State Public Notification requested1 linked violation
August 31, 1996State Violation/Reminder Notice1 linked violation
August 29, 1996State Public Notification received1 linked violation
July 21, 1995State Compliance achieved1 linked violation
June 17, 1995State Public Notification received1 linked violation
June 5, 1995State Violation/Reminder Notice1 linked violation
June 5, 1995State Public Notification requested1 linked violation
September 3, 1994State Violation/Reminder Notice1 linked violation
September 3, 1994State Public Notification requested2 linked violations
September 3, 1994State Violation/Reminder Notice2 linked violations
September 3, 1994State Public Notification requested1 linked violation
August 27, 1994State Public Notification received2 linked violations
June 15, 1991State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Contact

HAWKINS, CODY

618-566-2964

MASCOUTAH, IL 62258