Water quality in Black Earth, Wisconsin
Black Earth is in Dane County. 298 active public water systems serve the county; 40 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Dane County
45 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Mazomanie Waterworks Mazomanie |
1,744 | 1 | 3.4 mi | |
| Cross Plains Waterworks Cross Plains |
4,100 | 1 | 5.6 mi | |
| Mazomanie MHP Mazomanie |
85 | 0 | 6.8 mi | |
| Blue Mounds Waterworks Blue Mounds |
950 | 2 | 8.8 mi | |
| MT Horeb Waterworks Mount Horeb |
7,756 | 1 | 9.0 mi | |
| Dons Mobile Manor Waunakee |
160 | 4 | 12.1 mi | |
| Middleton Waterworks Middleton |
23,868 | 3 | 12.4 mi | |
| Applewood Hill Madison |
125 | 2 | 13.0 mi | |
| Verona Waterworks Verona |
14,030 | 3 | 14.9 mi | |
| Dane Waterworks Dane |
1,117 | 0 | 15.1 mi | |
| Waunakee Waterworks Waunakee |
14,879 | 1 | 15.8 mi | |
| Westport Bishops Bay Area Waunakee |
80 | 1 | 15.9 mi | |
| Shorewood Hills Waterworks Madison |
1,670 | 3 | 16.0 mi | |
| Westport Water Utility Waunakee |
800 | 1 | 16.1 mi | |
| Pine Ridge Apts Madison |
45 | 2 | 16.7 mi | |
| Lake Pointe Apts Well 2 5312-5318 Madison |
60 | 0 | 17.6 mi | |
| Lake Pointe/marina Bay Madison |
50 | 0 | 17.7 mi | |
| Fitchburg Utility Dist 1 Fitchburg |
29,900 | 0 | 18.1 mi | |
| Lake Pointe Apts Well 1 5320-5326 Madison |
60 | 0 | 18.3 mi | |
| Lake Forest Water Coop Madison |
400 | 4 | 18.4 mi | |
| Mendota Mental Health Inst Madison |
2,787 | 1 | 18.6 mi | |
| Madison Water Utility Madison |
272,000 | 2 | 19.0 mi | |
| Maple Bluff Waterworks Madison |
1,342 | 1 | 19.4 mi | |
| Danville Drive Service Area Fitchburg |
150 | 1 | 19.6 mi | |
| Rimrock Road Neighborhood Fitchburg |
135 | 1 | 19.6 mi |
Non-community systems in Dane County (252: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Dane County, nearest to Black Earth 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 Wisconsin 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.