Water quality for ZIP code 50631
ZIP 50631 covers Frederika in Bremer County, Iowa, one of 8 ZIP codes in the county. 16 active public water systems serve the county; 3 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Bremer County
9 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Waverly Water Department Waverly |
10,394 | 0 | |
| Sumner Water Supply Sumner |
2,030 | 0 | |
| Denver Water Supply Denver |
1,919 | 0 | |
| Tripoli Water Supply Tripoli |
1,191 | 0 | |
| Janesville Water Supply Janesville |
1,034 | 0 | |
| Readlyn Water Supply Readlyn |
845 | 0 | |
| Plainfield Water Supply Plainfield |
393 | 0 | |
| Meadow Lane Mobile Home Park Denver |
168 | 0 | |
| Saints Avenue Apartments Waverly |
125 | 0 |
Non-community systems in Bremer County (6: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Camp Ingawanis-Maple and Ranger Well Waverly |
402 | 2 | 1 | |
|
Heritage Global Methodist Church Waverly |
100 | 1 | 0 | |
|
Cliffs Place INC Plainfield |
51 | 3 | 1 | |
|
North Woods Park Sumner |
31 | 0 | 0 | |
|
Alcock Park Frederika |
25 | 0 | 0 | |
|
North Cedar Park Plainfield |
25 | 0 | 0 |
About this data
Water systems are matched to Bremer County, the county this ZIP code lies in, largest 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.
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.