Cleanest Lakes in Hancock County, Iowa
Crystal Lake Max Depth in Hancock County leads the rankings with a water quality grade of F and 1.6 ft of clarity. Below are the top 2 cleanest monitored lakes in Hancock County, Iowa, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Crystal Lake Max Depth | Hancock | F | 1.6 ft | - | 50.3 µg/L |
| 2 | Eldred Sherwood Lake | Hancock | F | 3 ft | - | 33.4 µg/L |