Cleanest Lakes in Jefferson County, Wisconsin
Rock Lake in Jefferson County leads the rankings with a water quality grade of B and 12 ft of clarity. Below are the top 14 cleanest monitored lakes in Jefferson County, Wisconsin, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Rock Lake | Jefferson | B | 12 ft | 18.1 µg/L | - |
| 2 | Red Cedar Lake | Jefferson | B | 4 ft | 23.4 µg/L | - |
| 3 | Lake Ripley | Jefferson | B | 9 ft | 21.8 µg/L | - |
| 4 | Blue Spring Lake | Jefferson | B | 6.2 ft | 24.7 µg/L | - |
| 5 | Lower Spring Lake | Jefferson | C | 4 ft | 44.1 µg/L | - |
| 6 | Mud Lake | Jefferson | D | 2.3 ft | 63.6 µg/L | - |
| 7 | Lake Koshkonong | Jefferson | D | 1.7 ft | 287 µg/L | - |
| 8 | Hahns Lake | Jefferson | NR | - | - | - |
| 9 | Goose Lake | Jefferson | NR | - | - | - |
| 10 | Rome Pond | Jefferson | NR | - | - | - |
| 11 | Cushman Pond | Jefferson | NR | - | - | - |
| 12 | Green Isle Lake | Jefferson | NR | - | - | - |
| 13 | Bean Lake | Jefferson | NR | - | - | - |
| 14 | Mud Lake | Jefferson | NR | - | - | - |
More Answers for Jefferson County, Wisconsin
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