Cleanest Lakes in Umatilla County, Oregon
Mckay Lake in Umatilla County leads the rankings with a water quality grade of F and 3.3 ft of clarity. Below are the top 1 cleanest monitored lakes in Umatilla County, Oregon, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Mckay Lake | Umatilla | F | 3.3 ft | 121.5 µg/L | - |