A
Su19 Lake
Cook County, Minnesota
Water Quality Grade: A — Excellent
Crystal clear — you can see 37.7 feet down. Chlorophyll-a: 0.7 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.5 m | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 0.7 µg/L | A |
County Ranking
Ranked #26 of 144 lakes in Cook County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-08-26
Monitoring stations: 1