B
School Lake
Chisago County, Minnesota
Water Quality Grade: B — Good
Moderate clarity — visible to about 7.9 feet. Phosphorus level: 20 µg/L. Chlorophyll-a: 1.6 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.4 m | C |
| Phosphorus | 20 µg/L | B |
| Chlorophyll-a (Algae) | 1.6 µg/L | A |
County Ranking
Ranked #6 of 38 lakes in Chisago County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-26
Monitoring stations: 1