How Clean Is Rush Lake?
Rush 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): 3.2 ft. Phosphorus: 26 µg/L. Trophic State Index: 56.
Cleanliness Snapshot
| Metric | Rush Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | C | C |
| Water Clarity (Secchi) | 3.2 ft | — |
| Phosphorus | 26 µg/L | <30 = clean |
| Trophic State Index | 56 | <50 = clean |
How does Rush Lake compare?
Rush Lake's grade of C matches or beats the Wisconsin state average of C. It ranks #1 of 5 lakes in Winnebago County by water quality score.