LISLE, IL · DuPage County
LISLE 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)
- IL0430551
- System type
- Community Water System
- Population served
- 24,233
- Service connections
- 6,097
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
Violation history
Consumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2025
UnaddressedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2021 – October 28, 2021
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2012 – July 8, 2013
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2011 – August 31, 2011
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 2006 – June 30, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 1992 – February 29, 1992
ArchivedMonitoring, 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 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Unaddressed |
| July 1, 2021 – October 28, 2021 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| July 1, 2012 – July 8, 2013 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| August 1, 2011 – August 31, 2011 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| June 1, 2006 – June 30, 2006 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| February 1, 1992 – February 29, 1992 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | 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
- September 20, 2025State Violation/Reminder Notice2 linked violations
- October 22, 2021State Violation/Reminder Notice2 linked violations
- August 23, 2012State Violation/Reminder Notice3 linked violations
- September 13, 2011State Violation/Reminder Notice5 linked violations
- January 1, 2007State Compliance achieved3 linked violations
- April 3, 1992State Public Notification requested1 linked violation
- April 3, 1992State Violation/Reminder Notice1 linked violation
- April 2, 1992State Public Notification received1 linked violation
- January 6, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 6, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
Contact
ELIAS, JASON
630-271-4180
LISLE, IL 60532