Water quality for ZIP code 50565
ZIP 50565 covers Marathon in Buena Vista County, Iowa, one of 8 ZIP codes in the county. 13 active public water systems serve the county; 4 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Buena Vista County
11 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Albert City Muni Water Supply Albert City |
677 | 0 | 5.9 mi | |
| Sioux Rapids Water Department Sioux Rapids |
932 | 3 | 6.4 mi | |
| Rembrandt Water Supply Rembrandt |
209 | 1 | 8.6 mi | |
| Linn Grove Water Works Linn Grove |
163 | 1 | 12.4 mi | |
| Truesdale Water Supply Truesdale |
69 | 0 | 12.8 mi | |
| Newell Water Treatment Plant Newell |
921 | 1 | 17.3 mi | |
| Storm Lake Water Treatment Plant Storm Lake |
11,431 | 0 | 17.7 mi | |
| Lake Creek Homeowners Association Storm Lake |
175 | 0 | 17.8 mi | |
| Lakeside Water Supply Lakeside |
700 | 0 | 18.7 mi | |
| Alta Municipal Water Plant Alta |
2,087 | 0 | 20.0 mi | |
| Iowa Lakes Regional Water Spencer |
6,755 | 0 | 21.4 mi |
Non-community systems in Buena Vista County (1: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Rembrandt Enterprises INC (rembrandt) Rembrandt |
120 | 0 | 0 |
About this data
Water systems are matched to Buena Vista 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.