How Clean Is Shamineau Lake?
Shamineau 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): 12.5 ft. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 4 µg/L. Trophic State Index: 42.
Cleanliness Snapshot
| Metric | Shamineau Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 12.5 ft | — |
| Phosphorus | 14 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 4 µg/L | <10 = clean |
| Trophic State Index | 42 | <50 = clean |
How does Shamineau Lake compare?
Shamineau Lake's grade of A matches or beats the Minnesota state average of C. It ranks #4 of 8 lakes in Morrison County by water quality score. Multi-year monitoring data shows water quality is stable based on 6 years of records.