Water quality in Avoca, Michigan
Avoca is in St. Clair County. 108 active public water systems serve the county; 30 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in St. Clair County
20 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Port Huron Township |
10,654 | 3 | |
| Fort Gratiot Township |
10,640 | 1 | |
| Marysville, City of Marysville |
9,959 | 0 | |
| Clay Township |
9,866 | 0 | |
| Ira Township |
6,510 | 0 | |
| St. Clair Water and Sewer Authority |
5,847 | 0 | |
| St. Clair, City of |
5,464 | 2 | |
| Kimball Township |
5,170 | 5 | |
| Marine City Marine City |
4,652 | 2 | |
| Algonac, City of Algonac |
4,110 | 0 | |
| St. Clair Township |
3,270 | 0 | |
| Cottrellville Township |
3,200 | 0 | |
| Burtchville Township |
2,900 | 1 | |
| Clyde Township |
2,400 | 0 | |
| Yale, City of Yale |
1,900 | 3 | |
| Capac, Village of Capac |
1,775 | 3 | |
| Memphis, City of Memphis |
1,084 | 0 | |
| Pinewood on the Lake MHP |
950 | 0 | |
| Sunrise MHP |
120 | 0 | |
| Dunrentin Heights Subdivision |
81 | 1 |
Non-community systems in St. Clair County (87: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to St. Clair County, 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.
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 Michigan 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.