Water quality for ZIP code 53812
ZIP 53812 covers Kieler in Grant County, Wisconsin, one of 21 ZIP codes in the county. 90 active public water systems serve the county; 44 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Grant County
27 systems, largest first| System | Serves | Status | Rules violated, 3 yr |
|---|---|---|---|
| Lancaster Waterworks Lancaster |
3,907 | 0 | |
| Boscobel Waterworks Boscobel |
3,237 | 0 | |
| Fennimore Waterworks Fennimore |
2,507 | 2 | |
| Cuba City Waterworks Cuba City |
2,141 | 3 | |
| Muscoda Waterworks Muscoda |
1,453 | 0 | |
| Hazel Green Waterworks Hazel Green |
1,193 | 3 | |
| Dickeyville Waterworks Dickeyville |
1,069 | 1 | |
| Cassville Waterworks Cassville |
777 | 1 | |
| Montfort Waterworks Montfort |
718 | 3 | |
| Potosi Waterworks Potosi |
718 | 2 | |
| Bloomington Waterworks Bloomington |
682 | 0 | |
| Livingston Waterworks Livingston |
664 | 0 | |
| Kieler SD NO 1 Kieler |
560 | 2 | |
| Blue River Waterworks Blue River |
424 | 1 | |
| Tennyson Waterworks Potosi |
367 | 2 | |
| Bagley Waterworks Bagley |
353 | 1 | |
| Sinsinawa Dominicans INC Sinsinawa |
213 | 1 | |
| Mount Hope Waterworks Mount Hope |
181 | 2 | |
| Patch Grove Waterworks Patch Grove |
160 | 0 | |
| Stitzer Sanitary Dist 1 Stitzer |
150 | 4 | |
| Maryville SD 2 Hazel Green |
100 | 2 | |
| Oak Park Community Platteville |
90 | 4 | |
| Cozy Acres MHP Boscobel |
80 | 0 | |
| Patriot Park Platteville |
80 | 0 | |
| Bluffside Court Cassville |
40 | 2 |
Non-community systems in Grant County (62: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Grant County, the county this ZIP code lies in, 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.
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.