How Clean Is Ellis Lake?
Ellis Lake has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 7.8 ft. Trophic State Index: 48.
Cleanliness Snapshot
| Metric | Ellis Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | C | B |
| Water Clarity (Secchi) | 7.8 ft | — |
| Trophic State Index | 48 | <50 = clean |
How does Ellis Lake compare?
Ellis Lake's grade of C falls below the Wisconsin state average of B. It ranks #4 of 4 lakes in Cortland County by water quality score.