Is Montrose Lake Safe for Swimming?
Montrose Lake in Henry County, Wisconsin has a water quality grade of F (Very Poor). Avoid swimming, very poor water quality, potential algae toxins. Water clarity: 0.6 ft visibility. Phosphorus: 266 µg/L. Chlorophyll-a (algae): 61.9 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Overall Grade | F (Very Poor) |
| Water Clarity (Secchi Depth) | 0.6 ft |
| Phosphorus | 266 μg/L |
| Chlorophyll-a (Algae) | 61.9 μg/L |
| Location | Henry County, Wisconsin |
How does Montrose Lake compare?
With an overall water quality grade of F, Montrose Lake falls below the Wisconsin state average of Grade C. It ranks #1 of 1 lakes in Henry County by water quality score.
Water clarity (Secchi depth) sits at 0.6 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 61.9 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.