B
Simian Lake
St. Louis County, Minnesota
Water Quality Grade: B — Good
Murky — only visible to about 4.5 feet. Phosphorus level: 25 µg/L. Chlorophyll-a: 4.6 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.37 m | D |
| Phosphorus | 25 µg/L | B |
| Chlorophyll-a (Algae) | 4.6 µg/L | A |
County Ranking
Ranked #84 of 198 lakes in St. Louis County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-03
Monitoring stations: 1