C
Lake Redstone -
Sauk County, Wisconsin
Water Quality Grade: C — Fair
Moderate clarity — visible to about 7.3 feet. Phosphorus level: 88.5 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.23 m | C |
| Phosphorus | 88.5 µg/L | D |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #16 of 21 lakes in Sauk County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-10-14
Monitoring stations: 1