Water quality for ZIP code 50428
ZIP 50428 covers Clear Lake and Ventura in Cerro Gordo County, Iowa, one of 9 ZIP codes in the county. 34 active public water systems serve the county; 13 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Cerro Gordo County
8 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Long Beach Mobile Park Clear Lake |
50 | 0 | 2.3 mi | |
| Ventura Water Works Ventura |
717 | 0 | 3.4 mi | |
| Mason City Water Department Mason City |
27,338 | 1 | 9.6 mi | |
| Swaledale Water Supply Swaledale |
144 | 0 | 11.9 mi | |
| Thornton Water Supply Thornton |
400 | 1 | 13.7 mi | |
| Rockwell Water Supply Rockwell |
1,071 | 1 | 15.0 mi | |
| Plymouth Water Supply Plymouth |
378 | 5 | 15.6 mi | |
| Meservey Water Supply Meservey |
222 | 0 | 16.2 mi |
Non-community systems in Cerro Gordo County (25: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Cerro Gordo County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.