Is Atkinson Lake by Sw 1401 Rd Safe for Swimming?
Atkinson Lake by Sw 1401 Rd in St. Clair County, Wisconsin has a water quality grade of D (Poor). Swimming not recommended, poor water quality with high algae risk. Water clarity: 1.6 ft visibility. Phosphorus: 63.7 µg/L. Chlorophyll-a (algae): 20.8 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | D (Poor) |
| Water Clarity (Secchi Depth) | 1.6 ft |
| Phosphorus | 63.7 μg/L |
| Chlorophyll-a (Algae) | 20.8 μg/L |
| Location | St. Clair County, Wisconsin |
How does Atkinson Lake by Sw 1401 Rd compare?
With an overall water quality grade of D, Atkinson Lake by Sw 1401 Rd falls below the Wisconsin state average of Grade C. It ranks #1 of 1 lakes in St. Clair County by water quality score.
Water clarity (Secchi depth) sits at 1.6 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 20.8 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.