Water quality for ZIP code 54749
ZIP 54749 covers Knapp in Dunn County, Wisconsin, one of 9 ZIP codes in the county. 87 active public water systems serve the county; 16 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Dunn County
13 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Boyceville Waterworks Boyceville |
1,043 | 2 | 7.2 mi | |
| Cedar Falls Acres MHP Menomonie |
95 | 1 | 9.6 mi | |
| Menomonie Waterworks Menomonie |
15,950 | 0 | 10.3 mi | |
| Birch Terrace Mobile Home Community Menomonie |
700 | 0 | 11.1 mi | |
| Tainter Woods Condominiums Colfax |
85 | 2 | 11.4 mi | |
| Wheeler Waterworks Assoc Wheeler |
317 | 5 | 11.6 mi | |
| Shady Oaks MHP Menomonie |
40 | 4 | 12.3 mi | |
| Countryside Mobile Homes Menomonie |
50 | 2 | 12.6 mi | |
| Downsville Sanitary District Downsville |
250 | 1 | 14.7 mi | |
| Colfax Waterworks Colfax |
1,102 | 0 | 18.8 mi | |
| Marell Country Estates Elk Mound |
150 | 1 | 19.6 mi | |
| Elk Mound Waterworks Elk Mound |
895 | 0 | 20.8 mi | |
| River Villa Mobile Home Court Menomonie |
60 | 0 | 25.6 mi |
Non-community systems in Dunn County (73: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Dunn 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.