Water quality for ZIP code 53118
ZIP 53118 covers Dousman and Summit in Waukesha County, Wisconsin, one of 26 ZIP codes in the county. 589 active public water systems serve the county; 108 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Waukesha County
72 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Lad Lake Dousman |
180 | 2 | 3.7 mi | |
| Prairie Village Water Trust North Prairie |
2,100 | 3 | 4.6 mi | |
| Eagle Waterworks Eagle |
1,950 | 1 | 5.8 mi | |
| Apartments of Stoneridge Delafield |
75 | 2 | 5.9 mi | |
| Lincolnshire Place Wales |
100 | 0 | 6.5 mi | |
| Hills of Wales Apts Wales |
50 | 2 | 6.8 mi | |
| Brandybrook Subdivision Wales |
474 | 1 | 6.9 mi | |
| Country Aire Apartments 3 Hartland |
80 | 0 | 7.0 mi | |
| Cambridge Place of Delafield Delafield |
50 | 2 | 7.2 mi | |
| Country Aire Apartments 2 Hartland |
90 | 0 | 7.4 mi | |
| Genesee Lake School South Oconomowoc |
230 | 1 | 7.9 mi | |
| Genesee Lake School North Oconomowoc |
110 | 1 | 8.0 mi | |
| Delafield Waterworks Delafield |
300 | 0 | 8.1 mi | |
| Knollcrest Delafield |
66 | 1 | 8.1 mi | |
| Sanctuary of Delafield Delafield |
27 | 2 | 8.2 mi | |
| ST Johns Northwestern Academies Delafield |
340 | 2 | 8.5 mi | |
| Nashotah House Delafield |
350 | 1 | 8.7 mi | |
| Delafield Square Delafield |
587 | 0 | 8.7 mi | |
| Arbors Delafield |
280 | 2 | 8.8 mi | |
| Delafield Lakes 402 Delafield |
40 | 0 | 8.9 mi | |
| Delafield Lakes 404 Delafield |
40 | 0 | 8.9 mi | |
| Delafield Woods 411 Delafield |
40 | 0 | 8.9 mi | |
| Delafield Woods 828 Delafield |
40 | 0 | 8.9 mi | |
| Quail Hollow Condos Delafield |
30 | 2 | 8.9 mi | |
| Wells ST Station 425 West Delafield |
25 | 1 | 8.9 mi |
Non-community systems in Waukesha County (516: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Waukesha 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.