Is Beaver Lake Safe for Swimming?
Beaver Lake in Logan County, North Dakota 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: 1.4 ft visibility. Phosphorus: 112.5 µg/L. Chlorophyll-a (algae): 4.8 µg/L. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Water Clarity (Secchi Depth) | 1.4 ft |
| Phosphorus | 112.5 μg/L |
| Chlorophyll-a (Algae) | 4.8 μg/L |
| Location | Logan County, North Dakota |
How does Beaver Lake compare?
On nutrient and algae readings, Beaver Lake matches or beats the North Dakota state average. It ranks #1 of 1 lakes in Logan County on nutrient and algae readings.
Water clarity (Secchi depth) sits at 1.4 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 4.8 µg/L — low and well within safe swimming guidelines.
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