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LakeQuality

Garden Lake in Lake 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: 5 ft visibility. Phosphorus: 15.5 µg/L. Chlorophyll-a (algae): 4.4 µg/L. Always check local health department advisories before swimming.

Key Metrics

MetricValue
Water Clarity (Secchi Depth)5 ft
Phosphorus15.5 μg/L
Chlorophyll-a (Algae)4.4 μg/L
Maximum Depth55 ft
LocationLake County, Minnesota

How does Garden Lake compare?

With an overall water-quality readings of , Garden Lake matches or beats the Minnesota state average. It ranks #2 of 35 lakes in Lake County by water quality score.

Water clarity (Secchi depth) sits at 5 feet. That falls into moderate clarity — typical for lakes with some nutrient enrichment. Algae levels (chlorophyll-a) measure 4.4 µg/L — low and well within safe swimming guidelines.