D
Decorah Lake -
Juneau County, Wisconsin
Water Quality Grade: D — Poor
Moderate clarity — visible to about 7.4 feet. Phosphorus level: 116 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.25 m | C |
| Phosphorus | 116 µg/L | F |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #2 of 2 lakes in Juneau County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-08-23
Monitoring stations: 1