How Clean Is Sherwood Lake?
Sherwood Lake is a clean lake by Wisconsin standards. It received a water quality grade of B (Good) based on EPA monitoring data. Water clarity (Secchi depth): 4.9 ft. Phosphorus: 17.8 µg/L. Chlorophyll-a (algae): 4.3 µg/L. Trophic State Index: 48.
Cleanliness Snapshot
| Metric | Sherwood Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | B | C |
| Water Clarity (Secchi) | 4.9 ft | — |
| Phosphorus | 17.8 µg/L | <30 = clean |
| Chlorophyll-a (Algae) | 4.3 µg/L | <10 = clean |
| Trophic State Index | 48 | <50 = clean |
How does Sherwood Lake compare?
Sherwood Lake's grade of B matches or beats the Wisconsin state average of C. It ranks #6 of 16 lakes in Warren County by water quality score.