How Clean Is Summit Lake?
Summit 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): 1.4 ft. Chlorophyll-a (algae): 45.7 µg/L. Trophic State Index: 70.
Cleanliness Snapshot
| Metric | Summit Lake | Wisconsin avg |
|---|---|---|
| Overall Grade | F | D |
| Water Clarity (Secchi) | 1.4 ft | — |
| Chlorophyll-a (Algae) | 45.7 µg/L | <10 = clean |
| Trophic State Index | 70 | <50 = clean |
How does Summit Lake compare?
Summit Lake's grade of F falls below the Wisconsin state average of D. It ranks #5 of 6 lakes in Union County by water quality score.