D
Francis Lake
Isanti County, Minnesota
Water Quality Grade: D — Poor
Very murky — less than 2.0 feet of visibility. Phosphorus level: 62 µg/L. Chlorophyll-a: 17.8 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.61 m | F |
| Phosphorus | 62 µg/L | D |
| Chlorophyll-a (Algae) | 17.8 µg/L | C |
County Ranking
Ranked #15 of 21 lakes in Isanti County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-05
Monitoring stations: 2