How Clean Is Potato Lake?
Potato 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 ft. Phosphorus: 11 µg/L. Trophic State Index: 40.
Cleanliness Snapshot
| Metric | Potato Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 12 ft | — |
| Phosphorus | 11 µg/L | <30 = clean |
| Trophic State Index | 40 | <50 = clean |
How does Potato Lake compare?
Potato Lake's grade of A matches or beats the Minnesota state average of C. It ranks #39 of 77 lakes in Hubbard County by water quality score. Multi-year monitoring data shows water quality is improving based on 5 years of records.