Cleanest Lakes in Clay County, Iowa
Stolley Pit Lake in Clay County leads the rankings with a water quality grade of D and 2.7 ft of clarity. Below are the top 1 cleanest monitored lakes in Clay County, Iowa, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Stolley Pit Lake | Clay | D | 2.7 ft | - | 17.3 µg/L |