Cleanest Lakes in Oliver County, North Dakota
Arroda Lake in Oliver County leads the rankings with a water quality grade of B and 6.7 ft of clarity. Below are the top 3 cleanest monitored lakes in Oliver County, North Dakota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Arroda Lake | Oliver | B | 6.7 ft | - | 3 µg/L |
| 2 | East Arroda Lake | Oliver | C | 5.6 ft | - | 6.2 µg/L |
| 3 | Nelson Lake | Oliver | D | 1.3 ft | - | 23.1 µg/L |