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LakeQuality

Is Disappointment Lake Safe for Swimming?

Disappointment Lake in Lake County, Minnesota is not rated for water quality — its monitoring record does not meet the evidence bar. Not rated for swimming — there is not enough monitoring data to judge this lake. Water clarity: 13.5 ft visibility. Always check local health department advisories before swimming.

Key Metrics

MetricValue
Overall GradeNR (Not rated)
Water Clarity (Secchi Depth)13.5 ft
Maximum Depth54 ft
LocationLake County, Minnesota

How does Disappointment Lake compare?

Disappointment Lake is not rated for water quality — its monitoring record does not meet the evidence bar, so it is not compared with the Minnesota state average.

Water clarity (Secchi depth) sits at 13.5 feet. That counts as exceptional clarity — sunlight penetrates deep, supporting submerged plants and limiting algae.