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LakeQuality

How Clean Is Insula Lake?

Insula Lake has fair water quality — typical of lakes with moderate nutrient enrichment. It received a water quality grade of C (Fair) based on EPA monitoring data. Water clarity (Secchi depth): 9.5 ft. Trophic State Index: 45.

Cleanliness Snapshot

MetricInsula LakeMinnesota avg
Overall GradeCC
Water Clarity (Secchi)9.5 ft
Trophic State Index45<50 = clean

How does Insula Lake compare?

Insula Lake's grade of C matches or beats the Minnesota state average of C. It ranks #96 of 142 lakes in Lake County by water quality score.