Water quality for ZIP code 52320
ZIP 52320 covers Olin in Jones County, Iowa, one of 11 ZIP codes in the county. 37 active public water systems serve the county; 18 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Jones County
12 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Morley Municipal Water Supply Morley |
98 | 2 | 5.1 mi | |
| Wyoming Water System Wyoming |
523 | 0 | 8.5 mi | |
| Oxford Junction Water Supply Oxford Junction |
424 | 1 | 10.0 mi | |
| Anamosa Municipal Water Supply Anamosa |
4,457 | 0 | 10.1 mi | |
| Onslow Water Supply Onslow |
201 | 1 | 10.1 mi | |
| Martelle Water Works Martelle |
249 | 0 | 10.8 mi | |
| Anamosa State Penitentiary Anamosa |
1,230 | 0 | 11.0 mi | |
| Center Junction (eiruss) Center Junction |
100 | 4 | 11.4 mi | |
| Montipark LLC Monticello |
60 | 10 | 16.1 mi | |
| Monticello Water Supply Monticello |
4,040 | 0 | 16.6 mi | |
| Bacon Addition Monticello |
81 | 0 | 17.1 mi | |
| Fairview Terrrace Mobile Home Park LLC Anamosa |
72 | 4 | 26.5 mi |
Non-community systems in Jones County (24: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Jones 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 county subdivision files or 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.