EPA public water records · 55111
Sauk County, Wisconsin
Find listed community water systems and their documented follow-up in federal fiscal 2026Q3.
- Systems with linked histories
- 18
- Systems with unresolved health-based records
- 1
- Of those, systems with a formally addressed health-based record
- 0
These counts cover the linked records shown here. A county listing can cover only part of the county or reflect a mailing location.
Find your water system
- BARABOO WATERWORKSWI1570085 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- BLUFFVIEW SANITARY DISTRICTWI1570097 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- DELL CREEK ESTATESWI1571232 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- EQUINOX REI LLC DELLWOOD ESTATESWI1570503 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- GLACIER VIEW SUBDIVISIONWI1570924 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- IRONTON WATERWORKSWI1570849 · Wisconsin · 10 violation records · 0 unresolved health-based in this snapshot
- LA VALLE WATERWORKSWI1570113 · Wisconsin · 3 violation records · 0 unresolved health-based in this snapshot
- LAKE DELTON WATERWORKSWI1570664 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- MAPLE PARK CONDOMINIUMSWI1570099 · Wisconsin · 5 violation records · 0 unresolved health-based in this snapshot
- MERRIMAC ESTATES MHPWI1570094 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- MERRIMAC WATERWORKSWI1570093 · Wisconsin · 3 violation records · 0 unresolved health-based in this snapshot
- PLAIN WATERWORKSWI1570098 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- PRAIRIE DU SAC WATERWORKSWI1570100 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- ROCK SPRINGS WATERWORKSWI1570104 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- SAUK CITY WATERWORKSWI1570105 · Wisconsin · 2 violation records · 0 unresolved health-based in this snapshot
- SPRING GREEN ESTATESWI1570110 · Wisconsin · 1 violation records · 0 unresolved health-based in this snapshot
- SPRING GREEN ESTATES NORTHWI1571284 · Wisconsin · 4 violation records · 0 unresolved health-based in this snapshot
- SPRING GREEN ESTATES SOUTHWI1571282 · Wisconsin · 2 violation records · 1 unresolved health-based in this snapshot
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility