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LakeQuality

Willmar Lake in Kandiyohi 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 ft visibility. Phosphorus: 73 µg/L. Chlorophyll-a (algae): 27.6 µg/L. Always check local health department advisories before swimming.

Key Metrics

MetricValue
Water Clarity (Secchi Depth)2 ft
Phosphorus73 μg/L
Chlorophyll-a (Algae)27.6 μg/L
Maximum Depth14 ft
LocationKandiyohi County, Minnesota

How does Willmar Lake compare?

With an overall water-quality readings of , Willmar Lake runs above the Minnesota state average. It ranks #17 of 25 lakes in Kandiyohi County by water quality score.

Water clarity (Secchi depth) sits at 2 feet. That signals heavy algae or sediment, often tied to high phosphorus from runoff. Algae levels (chlorophyll-a) measure 27.6 µg/L — elevated; risk of harmful algal bloom advisories increases at this concentration.