Cleanest Lakes in Richland County, Illinois
Olney East Fork Lake in Richland County leads the rankings with a water quality grade of C and 3.2 ft of clarity. Below are the top 3 cleanest monitored lakes in Richland County, Illinois, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Olney East Fork Lake | Richland | C | 3.2 ft | 25.5 µg/L | - |
| 2 | Vernor Lake | Richland | D | 4.8 ft | 96.5 µg/L | - |
| 3 | Borah Lake | Richland | F | 2.2 ft | 131 µg/L | - |