C
Portage Lake
Cass County, Minnesota
Water Quality Grade: C — Fair
Moderate clarity — visible to about 7.3 feet. Chlorophyll-a: 13.4 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.21 m | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 13.4 µg/L | C |
County Ranking
Ranked #146 of 154 lakes in Cass County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-09
Monitoring stations: 1