B
Three Island Lake
Cass County, Minnesota
Water Quality Grade: B — Good
Moderate clarity — visible to about 9.0 feet. Phosphorus level: 12 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.75 m | C |
| Phosphorus | 12 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #105 of 154 lakes in Cass County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-06
Monitoring stations: 1