How Clean Is Mina Lake?
Mina 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): 16 ft. Trophic State Index: 37.
Cleanliness Snapshot
| Metric | Mina Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 16 ft | — |
| Trophic State Index | 37 | <50 = clean |
How does Mina Lake compare?
Mina Lake's grade of A matches or beats the Minnesota state average of C. It ranks #6 of 51 lakes in Douglas County by water quality score. Multi-year monitoring data shows water quality is stable based on 5 years of records.