Water quality for ZIP code 50577
ZIP 50577 covers Renwick in Humboldt County, Iowa, one of 10 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 Humboldt County
7 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Livermore Water Supply Livermore |
383 | 1 | 10.5 mi | |
| Thor Water Works Thor |
181 | 0 | 12.2 mi | |
| Dakota City Water Supply Dakota City |
769 | 0 | 14.8 mi | |
| Bode Municipal Water Supply Bode |
304 | 1 | 15.6 mi | |
| Humboldt Municipal Water Dept Humboldt |
4,792 | 0 | 15.7 mi | |
| Rutland Water Supply Rutland |
116 | 0 | 17.4 mi | |
| Ottosen Water Supply Ottosen |
41 | 0 | 20.4 mi |
Non-community systems in Humboldt County (5: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hardy Water Supply Hardy |
26 | 0 | 0 | |
|
Humboldt Country Club Humboldt |
82 | 2 | 0 | |
|
Frank Gotch State Park-Humboldt Ccb Dakota City |
65 | 0 | 0 | |
|
Joe Sheldon Park-Humboldt Ccb Dakota City |
52 | 0 | 0 | |
|
Precision Pulley and Idler-Humboldt Humboldt |
100 | 1 | 0 |
About this data
Water systems are matched to Humboldt 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.
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.