How Clean Is Sand Lake?
Sand Lake is a clean lake by Wisconsin standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 9.9 ft. Phosphorus: 23.8 µg/L. Chlorophyll-a (algae): 3.5 µg/L. Trophic State Index: 46.
Cleanliness Snapshot
| Metric | Sand Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 9.9 ft | — |
| Phosphorus | 23.8 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 3.5 µg/L | <10 = clean |
| Trophic State Index | 46 | <50 = clean |
How does Sand Lake compare?
Sand Lake's grade of B matches or beats the Wisconsin state average of C. It ranks #25 of 50 lakes in Sawyer County by water quality score. Multi-year monitoring data shows water quality is improving based on 6 years of records.