Is Pearl Lake Safe for Swimming?
Pearl Lake in Stearns County, Minnesota has nutrient and algae measurements on record from state and federal monitoring. 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: 3.9 ft visibility. Phosphorus: 20.5 µg/L. Chlorophyll-a (algae): 13 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 3.9 ft |
| Phosphorus | 20.5 μg/L |
| Chlorophyll-a (Algae) | 13 μg/L |
| Maximum Depth | 17 ft |
| Location | Stearns County, Minnesota |
How does Pearl Lake compare?
On nutrient and algae readings, Pearl Lake matches or beats the Minnesota state average. It ranks #14 of 32 lakes in Stearns County on nutrient and algae readings.
Water clarity (Secchi depth) sits at 3.9 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment. Algae levels (chlorophyll-a) measure 13 µg/L — moderate; acceptable for swimming on most days, but worth checking advisories.
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