Cleanest Lakes in McHenry County, Illinois
Silver Lake in McHenry County leads the rankings with a water quality grade of B and 7 ft of clarity. Below are the top 4 cleanest monitored lakes in McHenry County, Illinois, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Silver Lake | McHenry | B | 7 ft | 11 µg/L | - |
| 2 | Lily Lake | McHenry | B | 3.3 ft | 16 µg/L | - |
| 3 | Woods Creek Lake | McHenry | C | 3.9 ft | 45.5 µg/L | - |
| 4 | Pistakee Lake | McHenry | D | 2.7 ft | 63 µg/L | - |