Is Chippewa Flowage -Winter Dam Lake Safe for Swimming?
Chippewa Flowage -Winter Dam Lake in Sawyer County, Wisconsin has a water quality grade of B (Good). Good for swimming, clear water with low algae levels. Water clarity: 14.3 ft visibility. Phosphorus: 49 µg/L. Chlorophyll-a (algae): 6.4 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | B (Good) |
| Water Clarity (Secchi Depth) | 14.3 ft |
| Phosphorus | 49 μg/L |
| Chlorophyll-a (Algae) | 6.4 μg/L |
| Maximum Depth | 92 ft |
| Location | Sawyer County, Wisconsin |
How does Chippewa Flowage -Winter Dam Lake compare?
With an overall water quality grade of B, Chippewa Flowage -Winter Dam Lake matches or beats the Wisconsin state average of Grade B. It ranks #46 of 52 lakes in Sawyer County by water quality score.
Water clarity (Secchi depth) sits at 14.3 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae. Algae levels (chlorophyll-a) measure 6.4 µg/L — low and well within safe swimming guidelines.