A
Lost Lake
St. Louis County, Minnesota
Water Quality Grade: A — Excellent
Crystal clear — you can see 15.1 feet down. Phosphorus level: 17 µg/L. Chlorophyll-a: 7.8 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.6 m | A |
| Phosphorus | 17 µg/L | A |
| Chlorophyll-a (Algae) | 7.8 µg/L | B |
County Ranking
Ranked #37 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