D
Second Lake
Carlton County, Minnesota
Water Quality Grade: D — Poor
Very murky — less than 1.2 feet of visibility. Phosphorus level: 78.5 µg/L. Chlorophyll-a: 19.5 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 0.38 m | F |
| Phosphorus | 78.5 µg/L | D |
| Chlorophyll-a (Algae) | 19.5 µg/L | C |
County Ranking
Ranked #38 of 41 lakes in Carlton County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-07-01
Monitoring stations: 1