Water quality in Marquette, Iowa
Marquette is in Clayton County. 45 active public water systems serve the county; 20 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 Clayton County
15 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| McGregor Water Dept Mcgregor |
747 | 1 | 1.2 mi | |
| Walters Mobile Home Park Mcgregor |
25 | 1 | 1.3 mi | |
| Breezy Pointe Subdivision Mcgregor |
130 | 1 | 2.2 mi | |
| Clayton Water Supply Clayton |
45 | 1 | 10.2 mi | |
| Monona Municipal Water Dept Monona |
1,471 | 0 | 10.6 mi | |
| Farmersburg Waterworks Farmersburg |
276 | 0 | 11.2 mi | |
| Garnavillo Water Supply Garnavillo |
763 | 0 | 12.8 mi | |
| Saint Olaf Water Supply Saint Olaf |
106 | 0 | 13.3 mi | |
| Luana Water Works Luana |
301 | 1 | 13.7 mi | |
| Scenic Acres Elkader |
27 | 0 | 17.2 mi | |
| Elkader Muni Water Dept Elkader |
1,219 | 0 | 17.3 mi | |
| Guttenberg Water Utility Guttenberg |
1,817 | 0 | 18.8 mi | |
| Volga Water Supply Volga City |
203 | 0 | 24.8 mi | |
| Edgewood Water Supply Edgewood |
939 | 0 | 30.0 mi | |
| Strawberry Point Water Supply Strawberry Point |
1,155 | 0 | 30.9 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, nearest to Marquette 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.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.