Water quality in Sullivan, Wisconsin
Sullivan is in Jefferson County. 194 active public water systems serve the county; 28 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Jefferson County
26 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Tremain Mobile Home Park Dousman |
475 | 4 | 5.7 mi | |
| Stanton Place I Ixonia |
66 | 0 | 8.9 mi | |
| Stanton Place II Ixonia |
32 | 0 | 8.9 mi | |
| River Valley Apts South Ixonia |
48 | 1 | 8.9 mi | |
| Palmyra Waterworks Palmyra |
1,756 | 0 | 9.0 mi | |
| Autumn Ridge Water System LLC Ixonia |
575 | 2 | 9.0 mi | |
| Parkview Apartments Ixonia |
45 | 2 | 9.4 mi | |
| River Valley Apts North Ixonia |
48 | 1 | 9.5 mi | |
| Johnson Creek Waterworks Johnson Creek |
3,318 | 4 | 10.1 mi | |
| Jefferson Waterworks Jefferson |
7,926 | 3 | 10.5 mi | |
| Rock River Mobile Home Park Johnson Creek |
30 | 4 | 10.6 mi | |
| Hickory Hill Park LLC Watertown |
31 | 0 | 12.8 mi | |
| Fort Atkinson Waterworks Fort Atkinson |
12,390 | 0 | 13.5 mi | |
| Oak Ridge Mobile Com 3 Fort Atkinson |
58 | 0 | 13.6 mi | |
| Watertown Waterworks Watertown |
23,945 | 1 | 14.1 mi | |
| Wolfs Mobile Homes Whitewater |
40 | 3 | 14.5 mi | |
| Lake Mills Waterworks Lake Mills |
6,211 | 2 | 16.0 mi | |
| Oak Ridge Mobile Com 1 & 2 Fort Atkinson |
133 | 0 | 16.4 mi | |
| Oak Ridge Mobile Com 4 Fort Atkinson |
60 | 1 | 17.8 mi | |
| Breezy Knoll Community Cambridge |
116 | 0 | 18.1 mi | |
| Ripview Court 1 Cambridge |
35 | 0 | 21.2 mi | |
| Ripview Court 4 Cambridge |
35 | 0 | 21.2 mi | |
| Ripview Court 2 Cambridge |
31 | 0 | 21.2 mi | |
| Ripview Court 3 Cambridge |
31 | 0 | 21.2 mi | |
| Waterloo Waterworks Waterloo |
3,520 | 2 | 23.2 mi |
Non-community systems in Jefferson County (167: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Jefferson County, nearest to Sullivan 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.