COUNTY WATER-SYSTEM LEDGER
DuPage, Illinois
Compare active community water systems serving this county in EPA's public export. Systems can serve multiple places, so population totals may overlap.
Systems32active CWS · pop. 2,500+
Population served834,595reported total; may overlap
Current violation flag21.9%7 systems
Serious-violator flag0.0%0 systems
01 / SYSTEMS
Water systems serving DuPage
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| NapervilleIL0434670 | 156,406 | Surface water purchased | No current violation flagged |
| WheatonIL0431050 | 53,970 | Surface water purchased | No current violation flagged |
| Downers GroveIL0430300 | 49,425 | Surface water purchased | No current violation flagged |
| ElmhurstIL0430350 | 45,000 | Surface water purchased | No current violation flagged |
| LombardIL0430600 | 44,476 | Surface water purchased | Current monitoring/reporting flag |
| Carol StreamIL0430200 | 39,854 | Surface water purchased | No current violation flagged |
| AddisonIL0430050 | 38,017 | Surface water purchased | No current violation flagged |
| WoodridgeIL0431250 | 33,566 | Surface water purchased | Other current violation flag |
| Glendale HeightsIL0430400 | 33,176 | Surface water purchased | No current violation flagged |
| Glen EllynIL0430450 | 28,850 | Surface water purchased | Other current violation flag |
| West ChicagoIL0430900 | 25,166 | Ground water | No current violation flagged |
| LisleIL0430551 | 24,223 | Surface water purchased | Other current violation flag |
| WestmontIL0430950 | 24,161 | Surface water purchased | No current violation flagged |
| RoselleIL0434820 | 22,897 | Surface water purchased | No current violation flagged |
| Villa ParkIL0430800 | 22,263 | Surface water purchased | No current violation flagged |
| BloomingdaleIL0430100 | 22,018 | Surface water purchased | Other current violation flag |
| DarienIL0430270 | 21,751 | Surface water purchased | No current violation flagged |
| BensenvilleIL0434140 | 18,537 | Surface water purchased | No current violation flagged |
| HinsdaleIL0434520 | 17,900 | Surface water purchased | No current violation flagged |
| Wood DaleIL0431200 | 14,012 | Surface water purchased | Other current violation flag |
| WarrenvilleIL0430833 | 12,350 | Ground water | No current violation flagged |
| Burr RidgeIL0434190 | 11,192 | Surface water purchased | No current violation flagged |
| WinfieldIL0431150 | 9,835 | Surface water purchased | No current violation flagged |
| ItascaIL0430500 | 9,506 | Surface water purchased | No current violation flagged |
| Oak BrookIL0430700 | 9,400 | Surface water purchased | No current violation flagged |
| WillowbrookIL0431100 | 9,000 | Surface water purchased | Current monitoring/reporting flag |
| Clarendon HillsIL0430250 | 8,702 | Surface water purchased | No current violation flagged |
| Southeast Regional Water FacilityIL0430060 | 6,940 | Surface water purchased | No current violation flagged |
| Il American-Valley ViewIL0437350 | 6,721 | Surface water purchased | No current violation flagged |
| Il American-Dupage UtilityIL0430552 | 6,613 | Surface water purchased | No current violation flagged |
| Aqua Illinois-Oak BrookIL0430055 | 5,361 | Surface water purchased | No current violation flagged |
| Il American-Liberty Ridge WestIL0435650 | 3,307 | Surface water purchased | No current violation flagged |
02 / SOURCE MIX
How to read the population total
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.