Cleanest Lakes in Jefferson County, Oregon
Billy Chinook Reservoir in Jefferson County leads the rankings with a water quality grade of B and 8.4 ft of clarity. Below are the top 3 cleanest monitored lakes in Jefferson County, Oregon, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Billy Chinook Reservoir | Jefferson | B | 8.4 ft | - | 2.4 µg/L |
| 2 | Deschutes River Arm Lake | Jefferson | B | 4.6 ft | - | 4.4 µg/L |
| 3 | Billy Chinook Reservoir | Jefferson | B | 4.4 ft | - | 1.9 µg/L |