Water quality for ZIP code 53956
ZIP 53956 covers Randolph in Columbia County, Wisconsin, one of 13 ZIP codes in the county. 139 active public water systems serve the county; 31 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Columbia County
25 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Friesland Waterworks Friesland |
345 | 3 | 4.1 mi | |
| Cambria Waterworks Cambria |
767 | 1 | 4.6 mi | |
| Pine Haven Estates Doylestown |
45 | 2 | 10.3 mi | |
| Fall River Waterworks Fall River |
1,793 | 2 | 10.8 mi | |
| Rio Waterworks Rio |
1,095 | 3 | 13.0 mi | |
| Pardeeville Waterworks Pardeeville |
2,151 | 0 | 14.0 mi | |
| Wisconsin Academy Main Campus Columbus |
115 | 2 | 14.2 mi | |
| Columbus Utilities Columbus |
5,173 | 2 | 14.4 mi | |
| Wyocena Waterworks Wyocena |
768 | 1 | 16.1 mi | |
| Saddle Ridge Estates Portage |
700 | 2 | 19.0 mi | |
| Suburban Heights MHP Portage |
90 | 0 | 19.7 mi | |
| Inch Heights LLC Poynette |
47 | 0 | 21.0 mi | |
| Poynette Mobile Estates Poynette |
150 | 4 | 21.4 mi | |
| Poynette Waterworks Poynette |
2,520 | 3 | 22.1 mi | |
| Portage Waterworks Portage |
10,437 | 0 | 22.6 mi | |
| Arlington Waterworks Arlington |
946 | 3 | 22.8 mi | |
| Capital Hill Mobile Home Park Poynette |
36 | 0 | 23.2 mi | |
| Oakwood Terrace Portage |
100 | 0 | 25.5 mi | |
| Harmony Mobile Manor Lodi |
45 | 0 | 27.4 mi | |
| Harmony Grove San Dist Lodi |
1,950 | 0 | 29.3 mi | |
| Dells Estates Wisconsin Dells |
30 | 3 | 30.0 mi | |
| Lodi Waterworks Lodi |
3,146 | 3 | 30.2 mi | |
| Crystal Lake RV Resort LLC Lodi |
725 | 0 | 35.4 mi | |
| Wisconsin Dells Waterworks Wisconsin Dells |
3,232 | 2 | 38.2 mi | |
| Pine Vista MHP 1 Prairie Du Sac |
60 | 0 | 38.8 mi |
Non-community systems in Columbia County (113: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Columbia County, the county this ZIP code lies in, nearest to the ZIP code's centre 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.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA 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.