How Clean Is Sand Lake?
Sand Lake is a clean lake by Minnesota standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 10 ft. Trophic State Index: 44.
Cleanliness Snapshot
| Metric | Sand Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 10 ft | — |
| Trophic State Index | 44 | <50 = clean |
How does Sand Lake compare?
Sand Lake's grade of B matches or beats the Minnesota state average of C. It ranks #4 of 19 lakes in Pine County by water quality score. Multi-year monitoring data shows water quality is improving based on 5 years of records.