How Clean Is Geneva Lake?
Geneva 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): 14.1 ft. Phosphorus: 22 µg/L. Trophic State Index: 44.
Cleanliness Snapshot
| Metric | Geneva Lake | Minnesota avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 14.1 ft | — |
| Phosphorus | 22 µg/L | <30 = clean |
| Trophic State Index | 44 | <50 = clean |
How does Geneva Lake compare?
Geneva Lake's grade of B matches or beats the Minnesota state average of C. It ranks #32 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.