Water quality for ZIP code 50531
ZIP 50531 covers Dolliver in Emmet County, Iowa, one of 5 ZIP codes in the county. 11 active public water systems serve the county; 5 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Emmet County
6 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Armstrong Water Supply Armstrong |
918 | 3 | 7.7 mi | |
| Oak Shores Armstrong |
55 | 1 | 9.1 mi | |
| Estherville Water Treatment Plant Estherville |
5,974 | 0 | 11.8 mi | |
| Ringsted Water Supply Ringsted |
365 | 1 | 12.1 mi | |
| Wallingford Municipal Waterworks Wallingford |
170 | 1 | 13.1 mi | |
| Droessler's Water Bellevue |
158 | 1 | 227.0 mi |
Non-community systems in Emmet County (4: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Tuttle Lake-Emmet Conservation Estherville |
75 | 0 | 0 | |
|
Iowa Lake Emmet CO Conservation Dolliver |
25 | 0 | 0 | |
|
Ingham Lake Bible Camp Wallingford |
100 | 0 | 0 | |
|
Wolden Recreation Area Estherville |
100 | 0 | 0 |
About this data
Water systems are matched to Emmet 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.