Is Long Lake Safe for Swimming?
Long Lake in Hennepin County, Minnesota has a water quality grade of D (Poor). Swimming not recommended — poor water quality with high algae risk. Water clarity: 3.1 ft visibility. Phosphorus: 48 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Water Clarity (Secchi Depth) | 3.1 ft |
| Phosphorus | 48 μg/L |
| Maximum Depth | 33 ft |
| Location | Hennepin County, Minnesota |