A
Boulder Lake
Hubbard County, Minnesota
Water Quality Grade: A — Excellent
Good clarity — visible to about 10.8 feet. Phosphorus level: 16.5 µg/L.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 m | B |
| Phosphorus | 16.5 µg/L | A |
| Chlorophyll-a (Algae) | No data |
County Ranking
Ranked #52 of 83 lakes in Hubbard County
Data Sources
Data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-09-15
Monitoring stations: 1