B
Grignon Lake
Monroe County, Wisconsin
Water Quality Grade: B — Good
Good clarity — visible to about 13.1 feet. Phosphorus level: 22.9 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4 m | B |
| Phosphorus | 22.9 µg/L | B |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #74 of 82 lakes in Monroe County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-06-25
Monitoring stations: 1