WESTMONT, IL · DuPage County

WESTMONT 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): IL0430950
System type: Community Water System
Population served: 24,161
Service connections: 7,021
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2020 – January 15, 2021
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2012 – October 31, 2012
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2008 – June 30, 2008
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2007 – June 30, 2007
Resolved
Public Education
Health-based
Lead and Copper Rule
January 1, 1995 – December 5, 1996
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
August 1, 1992 – August 31, 1992
Archived
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
November 21, 1990 – January 24, 1992
Resolved
Maximum Contaminant Level Violation, Average
Health-based
Combined Radium (-226 and -228)
December 9, 1985 – February 1, 1988
Resolved

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
December 30, 2020 – January 15, 2021	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2012 – October 31, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2008 – June 30, 2008	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2007 – June 30, 2007	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 1995 – December 5, 1996	Public Education	Lead and Copper Rule	Health-based	Resolved
August 1, 1992 – August 31, 1992	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Archived
November 21, 1990 – January 24, 1992	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved
December 9, 1985 – February 1, 1988	Maximum Contaminant Level Violation, Average	Combined Radium (-226 and -228)	Health-based	Resolved

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

Enforcement actions

January 15, 2021State Compliance achieved1 linked violation
January 6, 2021State Violation/Reminder Notice1 linked violation
November 30, 2012State Compliance achieved1 linked violation
November 26, 2012State Public Notification received1 linked violation
November 16, 2012State Public Notification requested1 linked violation
November 16, 2012State Violation/Reminder Notice1 linked violation
July 16, 2008State Compliance achieved1 linked violation
July 16, 2008State Violation/Reminder Notice1 linked violation
July 16, 2007State Compliance achieved1 linked violation
July 12, 2007State Violation/Reminder Notice1 linked violation
December 5, 1996State Compliance achieved1 linked violation
March 12, 1996State Violation/Reminder Notice1 linked violation
March 12, 1996State Public Notification requested1 linked violation
October 4, 1992State Violation/Reminder Notice3 linked violations
January 24, 1992State Compliance achieved1 linked violation
October 16, 1991State Public Notification requested1 linked violation
April 24, 1991State Public Notification requested1 linked violation
December 21, 1990State Public Notification received2 linked violations
February 1, 1988State Compliance achieved1 linked violation

Contact

RIES, AMY N.

630-981-6289

WESTMONT, IL 68559