Cleanest Lakes in Hardin County, Illinois
Tecumseh Lake in Hardin County leads the rankings with a water quality grade of B and 3.6 ft of clarity. Below are the top 1 cleanest monitored lakes in Hardin County, Illinois, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Tecumseh Lake | Hardin | B | 3.6 ft | 18 µg/L | - |