A
Superior Lake
St. Louis County, MinnesotaLimited Data
Water Quality Grade: A — Excellent
No clarity data. Phosphorus level: 10 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 10 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #31 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: 2022-10-11
Monitoring stations: 3