Cleanest Lakes in Jefferson County, Iowa
Reservoir Number Two in Jefferson County leads the rankings on measured clarity and nutrients. Below are the top 3 cleanest monitored lakes in Jefferson County, Iowa, ranked on EPA nutrient and algae measurements.
Ranked List
| # | Lake | County | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|
| 1 | Reservoir Number Two | Jefferson | - | - | - |
| 2 | Walton Lake | Jefferson | - | - | - |
| 3 | Horse Shoe Lake | Jefferson | - | - | - |
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