Cleanest Lakes in Washington County, Missouri
Lake Shayne-Terre du Lac Lakes in Washington County leads the rankings with a water quality grade of A and 11.1 ft of clarity. Below are the top 2 cleanest monitored lakes in Washington County, Missouri, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Lake Shayne-Terre du Lac Lakes | Washington | A | 11.1 ft | 5 µg/L | 1.2 µg/L |
| 2 | Sunnen Lake | Washington | D | 1 ft | 61 µg/L | 14.3 µg/L |