WESTMONT, IL · DuPage County
WESTMONT Water System
Consumer Confidence Report status
WESTMONT must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for WESTMONT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
WESTMONT is one of 225 community water systems in Illinois in the 10,001 to 100,000 people size category, serving 24,161 people from surface water.
As of August 1, 2026, its federal record holds 9 entries between 1977 and 2020, all of which EPA lists as closed. Nothing has been added since 2020.
Of the 9, 5 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Lead and Copper Rule, the Radionuclides and Revised Rad Rule, and the Total Coliform Rules.
Violation history
Lead Consumer Notice
—Lead and Copper Rule
December 30, 2020 – January 15, 2021
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
October 1, 2012 – October 31, 2012
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 2008 – June 30, 2008
ResolvedWater Quality Parameter M/R
—Lead and Copper Rule
January 1, 2007 – June 30, 2007
ResolvedPublic Education
Health-basedLead and Copper Rule
January 1, 1995 – December 5, 1996
ResolvedMonitoring, Repeat Minor (TCR)
—Coliform (TCR)
August 1, 1992 – August 31, 1992
ArchivedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
November 21, 1990 – January 24, 1992
ResolvedMaximum Contaminant Level Violation, Average
Health-basedCombined Radium (-226 and -228)
December 9, 1985 – February 1, 1988
ResolvedMonitoring, 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 |
|---|---|---|---|---|
| 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 |
| 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
- 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
Common questions
Is WESTMONT required to publish a Consumer Confidence Report?
- Yes. WESTMONT is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is WESTMONT’s next Consumer Confidence Report due?
- WESTMONT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WESTMONT have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for WESTMONT.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
RIES, AMY N.
630-981-6289
WESTMONT, IL 68559