Cleanest Lakes in Grant County, Washington
Banks Lake in Grant County leads the rankings with a water quality grade of A and 19.4 ft of clarity. Below are the top 7 cleanest monitored lakes in Grant County, Washington, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Banks Lake | Grant | A | 19.4 ft | 13 µg/L | 1.3 µg/L |
| 2 | Nla Lake | Grant | A | 12.8 ft | 15.7 µg/L | 2 µg/L |
| 3 | Nla Lake | Grant | B | 16.4 ft | 39517.1 µg/L | 1.5 µg/L |
| 4 | Nla Lake | Grant | C | 12.1 ft | 69000 µg/L | 2.8 µg/L |
| 5 | Nla Lake | Grant | C | 11.6 ft | 20000 µg/L | 4.4 µg/L |
| 6 | Nla Lake | Grant | D | 2.2 ft | 99000 µg/L | 14.7 µg/L |
| 7 | Nla Lake | Grant | F | 1.1 ft | 174.6 µg/L | 135.5 µg/L |