COUNTY WATER-SYSTEM LEDGER
St. Croix, Wisconsin
EPA’s September 2026 export lists 4 active community water systems serving St. Croix, Wisconsin, with 2 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving St. Croix, Wisconsin
EPA associates 4 covered systems with St. Croix, Wisconsin; their reported population-served values total 37,156 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Hudson WaterworksWI6560087 | 18,558 | Ground water | Other current violation flag |
| New Richmond WaterworksWI6560126 | 10,824 | Ground water | No current violation flagged |
| Baldwin WaterworksWI6560119 | 4,440 | Ground water | No current violation flagged |
| Somerset WaterworksWI6560137 | 3,334 | Ground water | Other current violation flag |
02 / SOURCE MIX
Primary water sources for St. Croix, Wisconsin
EPA classifies 4 systems serving St. Croix, Wisconsin across 1 primary-source categories; Ground water is the largest category with 4 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.