C
Mt Maud Lake
Cook County, Minnesota
Water Quality Grade: C — Fair
Murky — only visible to about 3.4 feet. Phosphorus level: 34 µg/L. Chlorophyll-a: 16.8 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.03 m | D |
| Phosphorus | 34 µg/L | C |
| Chlorophyll-a (Algae) | 16.8 µg/L | C |
County Ranking
Ranked #110 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: 2025-09-25
Monitoring stations: 1