Cleanest Lakes in Washington County, Wisconsin
Big Cedar Lake in Washington County leads the rankings with a water quality grade of A and 16.4 ft of clarity. Below are the top 13 cleanest monitored lakes in Washington County, Wisconsin, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Big Cedar Lake | Washington | A | 16.4 ft | 14.1 µg/L | - |
| 2 | Big Cedar Lake-North Site-Near West Bend | Washington | A | 11.8 ft | 17.5 µg/L | - |
| 3 | Big Cedar Lake-South Site-Near West Bend | Washington | A | 12.6 ft | 15 µg/L | - |
| 4 | Lake Five | Washington | A | 12 ft | 14.7 µg/L | - |
| 5 | Little Cedar Lake | Washington | A | 10.5 ft | 12.1 µg/L | - |
| 6 | Pike Lake | Washington | B | 7 ft | 19.3 µg/L | - |
| 7 | Green Lake | Washington | B | 9 ft | 16.6 µg/L | - |
| 8 | Big Cedar Lake | Washington | B | 9.8 ft | 15.5 µg/L | - |
| 9 | Little Friess Lake | Washington | B | 7.4 ft | 26.1 µg/L | - |
| 10 | Big Cedar Lake Northern Basin Deep Site | Washington | B | 8.7 ft | 21 µg/L | - |
| 11 | Druid Lake | Washington | C | 5.5 ft | 23.7 µg/L | - |
| 12 | Bark Lake | Washington | C | 5.5 ft | 33 µg/L | - |
| 13 | Friess Lake | Washington | C | 4 ft | 33 µg/L | - |