Water quality in West Allis, Wisconsin
West Allis is in Milwaukee County. 85 active public water systems serve the county; 13 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 Milwaukee County
17 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Wauwatosa Waterworks Wauwatosa |
49,064 | 0 | 3.7 mi | |
| Greendale Waterworks Greendale |
14,393 | 1 | 4.2 mi | |
| Whitnall Garden Apartments Hales Corners |
200 | 0 | 4.6 mi | |
| Milwaukee Waterworks Milwaukee |
626,000 | 0 | 5.3 mi | |
| Meadows Condominiums Assoc Ltd Franklin |
50 | 2 | 6.7 mi | |
| Franklin MHP Franklin |
118 | 3 | 6.7 mi | |
| Robert William Park Water Association INC Milwaukee |
1,065 | 0 | 7.4 mi | |
| Franklin Water Utility Franklin |
22,500 | 1 | 7.6 mi | |
| Shorewood Waterworks Shorewood |
13,535 | 0 | 9.3 mi | |
| Cudahy Waterworks Cudahy |
18,659 | 0 | 9.4 mi | |
| South Milwaukee Waterworks South Milwaukee |
21,340 | 0 | 9.5 mi | |
| Whitefish Bay Waterworks Whitefish Bay |
14,272 | 0 | 9.7 mi | |
| Glendale Waterworks Glendale |
12,883 | 3 | 10.3 mi | |
| Oak Creek Waterworks Oak Creek |
32,104 | 2 | 10.7 mi | |
| North Shore Water Commission Glendale |
35,598 | 0 | 11.0 mi | |
| Fox Point Waterworks Fox Point |
6,808 | 0 | 12.7 mi | |
| Brown Deer Waterworks Brown Deer |
12,741 | 0 | 13.5 mi |
Non-community systems in Milwaukee County (67: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Milwaukee County, nearest to West Allis 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.