Water quality for ZIP code 52072
ZIP 52072 covers St. Olaf in Clayton County, Iowa, one of 15 ZIP codes in the county. 45 active public water systems serve the county; 20 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Clayton County
15 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Farmersburg Waterworks Farmersburg |
276 | 0 | 2.5 mi | |
| Scenic Acres Elkader |
27 | 0 | 4.6 mi | |
| Elkader Muni Water Dept Elkader |
1,219 | 0 | 4.7 mi | |
| Garnavillo Water Supply Garnavillo |
763 | 0 | 8.1 mi | |
| Monona Municipal Water Dept Monona |
1,471 | 0 | 9.0 mi | |
| Luana Water Works Luana |
301 | 1 | 10.4 mi | |
| Breezy Pointe Subdivision Mcgregor |
130 | 1 | 11.0 mi | |
| Clayton Water Supply Clayton |
45 | 1 | 11.6 mi | |
| Volga Water Supply Volga City |
203 | 0 | 11.7 mi | |
| Walters Mobile Home Park Mcgregor |
25 | 1 | 12.2 mi | |
| McGregor Water Dept Mcgregor |
747 | 1 | 12.3 mi | |
| Marquette Water Supply Marquette |
429 | 0 | 13.2 mi | |
| Guttenberg Water Utility Guttenberg |
1,817 | 0 | 17.1 mi | |
| Strawberry Point Water Supply Strawberry Point |
1,155 | 0 | 18.3 mi | |
| Edgewood Water Supply Edgewood |
939 | 0 | 19.2 mi |
Non-community systems in Clayton County (29: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Clayton 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.