How Clean Is Coon-Sandwick Lake?
Coon-Sandwick 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): 10.7 ft. Phosphorus: 15 µg/L. Chlorophyll-a (algae): 3.6 µg/L. Trophic State Index: 43.
Cleanliness Snapshot
| Metric | Coon-Sandwick Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 10.7 ft | — |
| Phosphorus | 15 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 3.6 µg/L | <10 = clean |
| Trophic State Index | 43 | <50 = clean |
How does Coon-Sandwick Lake compare?
Coon-Sandwick Lake's grade of A matches or beats the Minnesota state average of C. It ranks #41 of 72 lakes in Itasca County by water quality score.