DOWNERS GROVE, IL · DuPage County
NORTHWEST BELMONT IMPROVEMENT ASSOCIATIO Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of December 18, 2017. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in DuPage County, IL.
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)
- IL0435900
- System type
- Community Water System
- Population served
- 75
- Service connections
- 25
- Ownership
- privately owned
- Water source
- groundwater (wells)
NORTHWEST BELMONT IMPROVEMENT ASSOCIATIO is one of 1,572 community water systems in Illinois in the 500 or fewer people size category, formerly serving 75 people from groundwater.
EPA's federal records list this system as inactive in 2017; the record below is historical.
As of August 1, 2026, its federal record holds 12 entries between 2000 and 2017, all of which EPA lists as closed. Nothing has been added since 2017.
Of the 12, 8 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 inorganic chemicals, the Consumer Confidence Rule, and the Total Coliform Rules.
Violation history
Monitoring, Routine (RTCR)
—Revised Total Coliform Rule
November 1, 2017 – November 30, 2017
ArchivedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2003 – November 12, 2003
ResolvedConsumer Confidence Report Inadequate Reporting
—Consumer Confidence Rule
July 1, 2002 – November 12, 2003
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2002 – November 15, 2002
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2001 – November 15, 2001
ResolvedMonitoring, Regular
—Antimony, Total
April 1, 2001 – June 30, 2001
ResolvedMonitoring, Regular
—Beryllium, Total
April 1, 2001 – June 30, 2001
ResolvedMonitoring, Regular
—Thallium, Total
April 1, 2001 – June 30, 2001
ResolvedMonitoring, Regular
—Selenium
April 1, 2001 – June 30, 2001
ResolvedMonitoring, Regular
—Mercury
April 1, 2001 – June 30, 2001
ResolvedMonitoring, Regular
—CYANIDE
April 1, 2001 – June 30, 2001
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
November 1, 2000 – November 30, 2000
Archived
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| November 1, 2017 – November 30, 2017 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Archived |
| July 1, 2003 – November 12, 2003 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2002 – November 12, 2003 | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | — | Resolved |
| July 1, 2002 – November 15, 2002 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2001 – November 15, 2001 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 1, 2001 – June 30, 2001 | Monitoring, Regular | Antimony, Total | — | Resolved |
| April 1, 2001 – June 30, 2001 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| April 1, 2001 – June 30, 2001 | Monitoring, Regular | Thallium, Total | — | Resolved |
| April 1, 2001 – June 30, 2001 | Monitoring, Regular | Selenium | — | Resolved |
| April 1, 2001 – June 30, 2001 | Monitoring, Regular | Mercury | — | Resolved |
| April 1, 2001 – June 30, 2001 | Monitoring, Regular | CYANIDE | — | Resolved |
| November 1, 2000 – November 30, 2000 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- December 13, 2017State Public Notification requested1 linked violation
- December 13, 2017State Public Notification requested1 linked violation
- December 13, 2017State Violation/Reminder Notice1 linked violation
- December 13, 2017State Violation/Reminder Notice1 linked violation
- March 16, 2006State Public Notification received1 linked violation
- March 9, 2006State Violation/Reminder Notice3 linked violations
- March 9, 2006State Violation/Reminder Notice8 linked violations
- November 19, 2002State Violation/Reminder Notice1 linked violation
- August 5, 2002State Violation/Reminder Notice2 linked violations
- December 10, 2001State Bilateral Compliance Agreement signed2 linked violations
- November 15, 2001State Compliance achieved1 linked violation
- September 25, 2001State Formal Notice of Violation issued1 linked violation
- August 15, 2001State Public Notification requested3 linked violations
- August 15, 2001State Violation/Reminder Notice4 linked violations
- July 31, 2001State Public Notification requested15 linked violations
- July 15, 2001State Public Notification requested3 linked violations
- April 5, 1990State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- April 5, 1990State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
- January 29, 1990State Public Notification issuedgeneral compliance action — not tied to a specific violation on record
- 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
- December 9, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- April 6, 1989State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
- March 12, 1989State Violation/Reminder Notice2 linked violations
Last known contact on file (system is inactive)
DAVENPORT, JUDITH A.
630-254-4938
DOWNERS GROVE, IL 60515