C
Johanna Lake
Ramsey County, Minnesota
Water Quality Grade: C — Fair
Moderate clarity — visible to about 7.2 feet. Phosphorus level: 38 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.2 m | C |
| Phosphorus | 38 µg/L | C |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #14 of 51 lakes in Ramsey County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-16
Monitoring stations: 2