How Clean Is Long Lake?
Long Lake has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 2.7 ft. Trophic State Index: 63.
Cleanliness Snapshot
| Metric | Long Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | F | C |
| Water Clarity (Secchi) | 2.7 ft | — |
| Trophic State Index | 63 | <50 = clean |
How does Long Lake compare?
Long Lake's grade of F falls below the Wisconsin state average of C. It ranks #22 of 26 lakes in Price County by water quality score. Multi-year monitoring data shows water quality is declining based on 3 years of records.