How Clean Is Cedar Lake?
Cedar Lake 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): 1.6 ft. Chlorophyll-a (algae): 62.7 µg/L. Trophic State Index: 71.
Cleanliness Snapshot
| Metric | Cedar Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | F | D |
| Water Clarity (Secchi) | 1.6 ft | — |
| Chlorophyll-a (Algae) | 62.7 µg/L | <10 = clean |
| Trophic State Index | 71 | <50 = clean |
How does Cedar Lake compare?
Cedar Lake's grade of F falls below the Wisconsin state average of D. It ranks #2 of 2 lakes in Madison County by water quality score.