How Clean Is Minnewaska Lake?
Minnewaska 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): 11.2 ft. Phosphorus: 23.5 µg/L. Trophic State Index: 46.
Cleanliness Snapshot
| Metric | Minnewaska Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 11.2 ft | — |
| Phosphorus | 23.5 µg/L | <30 = clean |
| Trophic State Index | 46 | <50 = clean |
How does Minnewaska Lake compare?
Minnewaska Lake's grade of B matches or beats the Minnesota state average of C. It ranks #3 of 25 lakes in Pope County by water quality score. Multi-year monitoring data shows water quality is declining based on 4 years of records.