Water quality for ZIP code 54828
ZIP 54828 covers Reserve, New Post, Chief Lake, and Couderay in Sawyer County, Wisconsin, one of 7 ZIP codes in the county. 193 active public water systems serve the county; 37 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Sawyer County
9 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Big Musky Resort Hayward |
25 | 0 | 7.2 mi | |
| Exeland Waterworks Exeland |
196 | 0 | 12.0 mi | |
| Stone Lake Sanitary District Stone Lake |
175 | 0 | 12.5 mi | |
| Winter Waterworks Winter |
344 | 0 | 13.6 mi | |
| Luedtkes Mobile Home Park Hayward |
50 | 0 | 14.2 mi | |
| S and J Wild River MHP Hayward |
90 | 4 | 14.7 mi | |
| Hayward Water Utility Hayward |
2,552 | 0 | 14.7 mi | |
| Tamarack Health Hayward Medical Center Hayward |
85 | 3 | 16.3 mi | |
| Flambeau Correctional Center Hawkins |
120 | 1 | 29.6 mi |
Non-community systems in Sawyer County (183: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Sawyer 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.