How Clean Is Sand Lake?
Sand Lake is among the cleanest lakes in Minnesota. It received a water quality grade of A (Excellent) based on EPA monitoring data. Water clarity (Secchi depth): 13.2 ft. Phosphorus: 18 µg/L. Chlorophyll-a (algae): 3.1 µg/L. Trophic State Index: 42.
Cleanliness Snapshot
| Metric | Sand Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 13.2 ft | — |
| Phosphorus | 18 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 3.1 µg/L | <10 = clean |
| Trophic State Index | 42 | <50 = clean |
How does Sand Lake compare?
Sand Lake's grade of A matches or beats the Minnesota state average of C. It ranks #10 of 72 lakes in Itasca County by water quality score.