Cleanest Lakes in Okanogan County, Washington
Fdr Lake in Okanogan County leads the rankings with a water quality grade of A and 21.5 ft of clarity. Below are the top 4 cleanest monitored lakes in Okanogan County, Washington, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Fdr Lake | Okanogan | A | 21.5 ft | 11 µg/L | 1.3 µg/L |
| 2 | Nla Lake | Okanogan | B | 22.7 ft | 20518.3 µg/L | 2.7 µg/L |
| 3 | Nla Lake | Okanogan | B | 14.9 ft | 47515.6 µg/L | 2.2 µg/L |
| 4 | Nla Lake | Okanogan | C | 14 ft | 12516.3 µg/L | 4 µg/L |