Water quality for ZIP code 53818
ZIP 53818 covers Platteville 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
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Grant County
27 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Oak Park Community Platteville |
90 | 4 | 1.7 mi | |
| Patriot Park Platteville |
80 | 0 | 1.7 mi | |
| Dickeyville Waterworks Dickeyville |
1,069 | 1 | 9.7 mi | |
| Cuba City Waterworks Cuba City |
2,141 | 3 | 10.2 mi | |
| Tennyson Waterworks Potosi |
367 | 2 | 10.9 mi | |
| Livingston Waterworks Livingston |
664 | 0 | 11.1 mi | |
| River Vista Estates LLC Potosi |
30 | 3 | 11.7 mi | |
| Potosi Waterworks Potosi |
718 | 2 | 11.9 mi | |
| Kieler SD NO 1 Kieler |
560 | 2 | 12.4 mi | |
| Sinsinawa Dominicans INC Sinsinawa |
213 | 1 | 12.8 mi | |
| Lancaster Waterworks Lancaster |
3,907 | 0 | 13.0 mi | |
| Stitzer Sanitary Dist 1 Stitzer |
150 | 4 | 14.1 mi | |
| Hazel Green Waterworks Hazel Green |
1,193 | 3 | 14.9 mi | |
| Montfort Waterworks Montfort |
718 | 3 | 15.9 mi | |
| Maryville SD 2 Hazel Green |
100 | 2 | 16.0 mi | |
| Stateline Mobile Home Park Hazel Green |
37 | 4 | 17.2 mi | |
| Fennimore Waterworks Fennimore |
2,507 | 2 | 18.0 mi | |
| Bluffside Court Cassville |
40 | 2 | 23.8 mi | |
| Mount Hope Waterworks Mount Hope |
181 | 2 | 24.1 mi | |
| Bloomington Waterworks Bloomington |
682 | 0 | 24.4 mi | |
| Cassville Waterworks Cassville |
777 | 1 | 25.1 mi | |
| Patch Grove Waterworks Patch Grove |
160 | 0 | 27.8 mi | |
| Cozy Acres MHP Boscobel |
80 | 0 | 28.2 mi | |
| Boscobel Waterworks Boscobel |
3,237 | 0 | 29.2 mi | |
| Muscoda Waterworks Muscoda |
1,453 | 0 | 30.6 mi |
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, 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 or the centre of the first town EPA lists the system as serving, from Census Bureau county subdivision 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.