Is Sherwood Lake Nr. Dam Safe for Swimming?
Sherwood Lake Nr. Dam in Warren County, Wisconsin has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 5.9 ft visibility. Phosphorus: 14.3 µg/L. Chlorophyll-a (algae): 4.4 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 5.9 ft |
| Phosphorus | 14.3 μg/L |
| Chlorophyll-a (Algae) | 4.4 μg/L |
| Location | Warren County, Wisconsin |
How does Sherwood Lake Nr. Dam compare?
With an overall water quality grade of B, Sherwood Lake Nr. Dam matches or beats the Wisconsin state average of Grade C. It ranks #4 of 16 lakes in Warren County by water quality score.
Water clarity (Secchi depth) sits at 5.9 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment. Algae levels (chlorophyll-a) measure 4.4 µg/L — low and well within safe swimming guidelines.