County · Wisconsin
Trempealeau County, Wisconsin: drinking water records
This overview covers 11 ZIP codes and 14 community water systems in Trempealeau County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Galesville Waterworks WI6620271 | 1,679 | 0 | 0 | 1 | 2.8 ppb |
| Blair Waterworks WI6620274 | 1,280 | 0 | 0 | 1 | 0 ppb |
| Eleva Waterworks WI6620270 | 635 | 0 | 0 | 2 | 4 ppb |
| Dodge Sanitary Dist 1 WI6620165 | 120 | 0 | 0 | 7 | 31.8 ppb |
| Arcadia Waterworks WI6620319 | 3,737 | 0 | 0 | 0 | 1.8 ppb |
| Trempealeau Waterworks WI6620332 | 1,888 | 0 | 0 | 0 | 0 ppb |
| Whitehall Waterworks WI6620275 | 1,820 | 0 | 0 | 0 | 1.5 ppb |
| Osseo Waterworks WI6620328 | 1,701 | 0 | 0 | 0 | 1.2 ppb |
| Independence Waterworks WI6620276 | 1,500 | 0 | 0 | 0 | 0 ppb |
| Strum Waterworks WI6620331 | 1,100 | 0 | 0 | 0 | 0.8 ppb |
| Ettrick Waterworks WI6620273 | 536 | 0 | 0 | 0 | 1.9 ppb |
| Pigeon Falls Waterworks WI6620329 | 409 | 0 | 0 | 0 | 0.6 ppb |
| Lincoln Tn of Sd 1 WI6620579 | 300 | 0 | 0 | 0 | 10.2 ppb |
| Country Road Estates WI6620325 | 120 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Trempealeau County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.