Is Lamar City Lk. South Arm Lake Safe for Swimming?
Lamar City Lk. South Arm Lake in Barton County, Wisconsin has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 2.1 ft visibility. Phosphorus: 80.4 µg/L. Chlorophyll-a (algae): 39 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 2.1 ft |
| Phosphorus | 80.4 μg/L |
| Chlorophyll-a (Algae) | 39 μg/L |
| Location | Barton County, Wisconsin |
How does Lamar City Lk. South Arm Lake compare?
With an overall water quality grade of F, Lamar City Lk. South Arm Lake falls below the Wisconsin state average of Grade C. It ranks #4 of 6 lakes in Barton County by water quality score.
Water clarity (Secchi depth) sits at 2.1 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 39 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.