Water quality for ZIP code 50458
ZIP 50458 covers Nora Springs and Portland in Floyd County, Iowa, one of 7 ZIP codes in the county. 18 active public water systems serve the county; 6 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Floyd County
6 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Rudd Waterworks Rudd |
358 | 0 | 5.7 mi | |
| Rockford Water Supply Rockford |
762 | 0 | 8.0 mi | |
| Floyd Muni Water Supply Floyd |
313 | 0 | 14.0 mi | |
| Marble Rock Water Supply Marble Rock |
272 | 0 | 15.1 mi | |
| Charles City Water Supply Charles City |
7,446 | 0 | 18.0 mi | |
| Colwell, City of Colwell |
55 | 0 | 21.2 mi |
Non-community systems in Floyd County (11: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Fossil and Prairie Area Rockford |
30 | 0 | 0 | |
|
Cedar Springs Camp Floyd |
39 | 2 | 0 | |
|
Tosanak Recreation Area Marble Rock |
151 | 1 | 0 | |
|
218 Fuel Express Floyd |
914 | 0 | 0 | |
|
ST Marys Church Marble Rock |
25 | 0 | 0 | |
|
Cedar River Harley Davidson Charles City |
33 | 1 | 0 | |
|
Ackley Creek Park Marble Rock |
30 | 1 | 0 | |
|
Living Hope Mennonite Church Charles City |
125 | 1 | 0 | |
|
Freeze Frame Bowl Greene |
55 | 0 | 0 | |
|
Swartzrock Implement CO INC Charles City |
37 | 2 | 1 | |
|
Cedar Ridge Golf Course Charles City |
316 | 0 | 0 |
About this data
Water systems are matched to Floyd 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.