B
Big Birch Lake
Todd County, Minnesota
Water Quality Grade: B — Good
Good clarity — visible to about 12.0 feet. Phosphorus level: 30.5 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.66 m | B |
| Phosphorus | 30.5 µg/L | C |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #11 of 21 lakes in Todd County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-28
Monitoring stations: 8