D
Twin Lake
Isanti County, Minnesota
Water Quality Grade: D — Poor
Very murky — less than 2.6 feet of visibility. Phosphorus level: 110 µg/L. Chlorophyll-a: 11.7 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.8 m | F |
| Phosphorus | 110 µg/L | F |
| Chlorophyll-a (Algae) | 11.7 µg/L | C |
County Ranking
Ranked #16 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: 2024-09-18
Monitoring stations: 2