# Sheldon Water Utility: health-based drinking water violation (groundwater rule) in Sheldon, WI

**Score:** 35/100

| Field | Value |
|---|---|
| Water system | Sheldon Water Utility |
| PWSID | WI8550278 |
| System type | Community water system |
| Owner type | Local government |
| Population served | 265 |
| Location | Sheldon, WI |
| Contaminant | Groundwater Rule |
| Rule group | Microbial (coliform, E. coli, treatment technique) |
| Compliance period | 2026-06-02 |
| Status | Returned to compliance |
| Returned to compliance | 2026-06-24 |
| Public notice tier | 2 |

## Why this score
- Community water system.

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) via Envirofacts and EPA ECHO (https://echo.epa.gov/detailed-facility-report?fid=110013054951). Last refreshed: 2026-11-04T06:06:47.254Z.
From EPA SDWIS federal data, which lags state records by up to a quarter. A violation is a regulatory finding about a water system, not a statement about current water quality. Verify with the state drinking water program.