How Clean Is Swenson Lake?
Swenson 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): 20.8 ft. Phosphorus: 8 µg/L. Trophic State Index: 34.
Cleanliness Snapshot
| Metric | Swenson Lake | Minnesota avg |
|---|---|---|
| Overall Grade | A | C |
| Water Clarity (Secchi) | 20.8 ft | — |
| Phosphorus | 8 µg/L | <30 = clean |
| Trophic State Index | 34 | <50 = clean |
How does Swenson Lake compare?
Swenson Lake's grade of A matches or beats the Minnesota state average of C. It ranks #18 of 86 lakes in Beltrami County by water quality score. Multi-year monitoring data shows water quality is stable based on 5 years of records.