Cleanest Lakes in Williams County, North Dakota
Kota Ray Dam Lake in Williams County leads the rankings with a water quality grade of B and 7.7 ft of clarity. Below are the top 7 cleanest monitored lakes in Williams County, North Dakota, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Kota Ray Dam Lake | Williams | B | 7.7 ft | - | 3.5 µg/L |
| 2 | Blacktail Dam Lake | Williams | B | 7.2 ft | - | 8.6 µg/L |
| 3 | Kettle Lake | Williams | B | 5.3 ft | - | 3.9 µg/L |
| 4 | Trenton Lake | Williams | C | 1.5 ft | - | 4.2 µg/L |
| 5 | Mcleod Reservoir | Williams | C | 5.4 ft | - | 16.5 µg/L |
| 6 | Epping-Springbrook Dam-Deepest Lake | Williams | D | 4.9 ft | - | 21.3 µg/L |
| 7 | Tioga Dam Lake | Williams | D | 2.2 ft | - | 20 µg/L |