Is Mazaska Lake Safe for Swimming?
Mazaska Lake in Rice County, Minnesota has nutrient and algae measurements on record from state and federal monitoring. Chlorophyll-a in the monitoring record runs high enough that algae is a factor. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Water clarity: 2.5 ft visibility. Phosphorus: 89 µg/L. Chlorophyll-a (algae): 51.3 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft |
| Phosphorus | 89 μg/L |
| Chlorophyll-a (Algae) | 51.3 μg/L |
| Maximum Depth | 50 ft |
| Location | Rice County, Minnesota |
How does Mazaska Lake compare?
With an overall water-quality readings of —, Mazaska Lake runs above the Minnesota state average. It ranks #8 of 14 lakes in Rice County by water quality score.
Water clarity (Secchi depth) sits at 2.5 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 51.3 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.
Watch Mazaska Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.