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LakeQuality

Shamineau Lake in Morrison 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: 12.5 ft visibility. Phosphorus: 14 µg/L. Chlorophyll-a (algae): 4 µg/L. Always check local health department advisories before swimming.

Key Metrics

MetricValue
Water Clarity (Secchi Depth)12.5 ft
Phosphorus14 μg/L
Chlorophyll-a (Algae)4 μg/L
Maximum Depth52 ft
LocationMorrison County, Minnesota

How does Shamineau Lake compare?

With an overall water-quality readings of , Shamineau Lake matches or beats the Minnesota state average. It ranks #4 of 8 lakes in Morrison County by water quality score.

Water clarity (Secchi depth) sits at 12.5 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae. Algae levels (chlorophyll-a) measure 4 µg/L — low and well within safe swimming guidelines.