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LakeQuality

How Clean Is Holden City Lake Nr. Dam?

Holden City Lake Nr. Dam has very poor water quality and a high algae bloom risk. It received a water quality grade of F (Very Poor) based on EPA monitoring data. Water clarity (Secchi depth): 2 ft. Phosphorus: 96 µg/L. Chlorophyll-a (algae): 39.2 µg/L. Trophic State Index: 68.

Cleanliness Snapshot

MetricHolden City Lake Nr. DamWisconsin avg
Overall GradeFC
Water Clarity (Secchi)2 ft
Phosphorus96 µg/L<30 = clean
Chlorophyll-a (Algae)39.2 µg/L<10 = clean
Trophic State Index68<50 = clean

How does Holden City Lake Nr. Dam compare?

Holden City Lake Nr. Dam's grade of F falls below the Wisconsin state average of C. It ranks #5 of 5 lakes in Johnson County by water quality score.