Water quality in Mazomanie, Wisconsin
Mazomanie 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 MHP Mazomanie |
85 | 0 | 3.4 mi | |
| Black Earth Waterworks Black Earth |
1,493 | 2 | 3.9 mi | |
| Cross Plains Waterworks Cross Plains |
4,100 | 1 | 8.3 mi | |
| Blue Mounds Waterworks Blue Mounds |
950 | 2 | 11.5 mi | |
| MT Horeb Waterworks Mount Horeb |
7,756 | 1 | 12.5 mi | |
| Dons Mobile Manor Waunakee |
160 | 4 | 13.5 mi | |
| Middleton Waterworks Middleton |
23,868 | 3 | 14.7 mi | |
| Dane Waterworks Dane |
1,117 | 0 | 15.0 mi | |
| Applewood Hill Madison |
125 | 2 | 16.0 mi | |
| Waunakee Waterworks Waunakee |
14,879 | 1 | 16.9 mi | |
| Westport Bishops Bay Area Waunakee |
80 | 1 | 17.0 mi | |
| Westport Water Utility Waunakee |
800 | 1 | 17.5 mi | |
| Verona Waterworks Verona |
14,030 | 3 | 18.2 mi | |
| Shorewood Hills Waterworks Madison |
1,670 | 3 | 18.4 mi | |
| Pine Ridge Apts Madison |
45 | 2 | 19.0 mi | |
| Lake Pointe/marina Bay Madison |
50 | 0 | 19.2 mi | |
| Lake Pointe Apts Well 2 5312-5318 Madison |
60 | 0 | 19.2 mi | |
| Lake Pointe Apts Well 1 5320-5326 Madison |
60 | 0 | 19.6 mi | |
| Mendota Mental Health Inst Madison |
2,787 | 1 | 20.2 mi | |
| Fitchburg Utility Dist 1 Fitchburg |
29,900 | 0 | 21.0 mi | |
| Lake Forest Water Coop Madison |
400 | 4 | 21.0 mi | |
| Madison Water Utility Madison |
272,000 | 2 | 21.2 mi | |
| Maple Bluff Waterworks Madison |
1,342 | 1 | 21.3 mi | |
| Windsor Water Utility North Morrisonville |
400 | 0 | 22.3 mi | |
| Deforest Waterworks Deforest |
10,500 | 2 | 22.4 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 Mazomanie 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.