B
North Twin Lake
Mahnomen County, Minnesota
Water Quality Grade: B — Good
Moderate clarity — visible to about 8.5 feet. Phosphorus level: 17 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.6 m | C |
| Phosphorus | 17 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #5 of 17 lakes in Mahnomen County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-20
Monitoring stations: 2