Water quality in Cascade, Iowa
Cascade is in Dubuque County. 74 active public water systems serve the county; 30 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Dubuque County
31 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Bernard Water System Bernard |
114 | 0 | 6.4 mi | |
| Epworth Water Supply Epworth |
2,023 | 0 | 9.5 mi | |
| Farley Water Supply Farley |
1,766 | 1 | 9.6 mi | |
| Worthington Water Supply Worthington |
382 | 0 | 10.2 mi | |
| Peosta Water Supply Peosta |
2,278 | 0 | 11.1 mi | |
| Burds Green Acres Subdivision Peosta |
312 | 0 | 12.0 mi | |
| Thunder Hills Home & Utility Assoc. Peosta |
300 | 0 | 12.6 mi | |
| Country Hills Water Corp Centralia |
38 | 0 | 12.9 mi | |
| Super 20 Mobile Home Court Dubuque |
236 | 2 | 13.9 mi | |
| Dyersville Municipal Water CO Dyersville |
4,477 | 1 | 14.1 mi | |
| Lost Canyon MHP (peosta) Peosta |
97 | 1 | 14.7 mi | |
| Hickory Acres Dubuque |
115 | 0 | 16.6 mi | |
| Lore Oaks Homeowners Assn. Dubuque |
64 | 0 | 16.6 mi | |
| Table Mound Park Dubuque |
455 | 1 | 16.9 mi | |
| Asbury Municipal Water System Asbury |
5,943 | 0 | 17.9 mi | |
| Dubuque Water Works Dubuque |
59,667 | 0 | 18.2 mi | |
| New Vienna Water Supply New Vienna |
382 | 1 | 18.3 mi | |
| Terrace Heights Dubuque |
548 | 1 | 18.3 mi | |
| Star Water Dubuque |
110 | 1 | 18.3 mi | |
| Lore Mound Mobile Home Park Dubuque |
68 | 0 | 18.3 mi | |
| Shagbark Estates Dubuque |
38 | 3 | 18.3 mi | |
| Green Brier Subdivision Dubuque |
35 | 2 | 18.3 mi | |
| Regency West Subdivision Dubuque |
34 | 0 | 18.3 mi | |
| Holy Cross Water Supply Holy Cross |
356 | 2 | 20.3 mi | |
| Spring Valley Park Bellevue |
180 | 0 | 20.6 mi |
Non-community systems in Dubuque County (42: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Dubuque County, nearest to Cascade first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system or, for systems without one, to the centre of the first town EPA lists the system as serving, from Census Bureau place files.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Iowa records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.