B
3-Island Lake
Cass County, Minnesota
Water Quality Grade: B — Good
Moderate clarity — visible to about 9.8 feet. Chlorophyll-a: 3.4 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3 m | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 3.4 µg/L | A |
County Ranking
Ranked #124 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: 2024-10-07
Monitoring stations: 1