B
Perch Lake
Carlton County, Minnesota
Water Quality Grade: B — Good
Good clarity — visible to about 12.7 feet. Phosphorus level: 22 µg/L. Chlorophyll-a: 7.1 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.88 m | B |
| Phosphorus | 22 µg/L | B |
| Chlorophyll-a (Algae) | 7.1 µg/L | B |
County Ranking
Ranked #12 of 41 lakes in Carlton County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-07
Monitoring stations: 1