A
Birch Lake
Cass County, Minnesota
Water Quality Grade: A — Excellent
Good clarity — visible to about 13.7 feet. Phosphorus level: 12 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.18 m | B |
| Phosphorus | 12 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #58 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: 2024-10-02
Monitoring stations: 1