Cleanest Lakes in Simcoe County, Ontario
Gloucester Pool in Simcoe County leads the rankings with a water quality grade of A and 15.4 ft of clarity. Below are the 15 cleanest monitored lakes in Simcoe County, Ontario, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Gloucester Pool | Simcoe | A | 15.4 ft | 9.6 µg/L | - |
| 2 | Couchiching Lake | Simcoe | A | 22 ft | 6.9 µg/L | - |
| 3 | Lake Simcoe | Simcoe | A | 31.5 ft | 7.1 µg/L | - |
| 4 | Couchiching Lake | Simcoe | A | 13.1 ft | 10.3 µg/L | - |
| 5 | Little Lake | Simcoe | A | 11.5 ft | 9.7 µg/L | - |
| 6 | Simcoe Lake | Simcoe | A | 14.8 ft | 10.6 µg/L | - |
| 7 | Sparrow Lake | Simcoe | A | 14.8 ft | 10.9 µg/L | - |
| 8 | Bass Lake | Simcoe | B | 9.8 ft | 10.9 µg/L | - |
| 9 | Farlain Lake | Simcoe | B | 9.2 ft | 9.9 µg/L | - |
| 10 | Orr Lake | Simcoe | B | 8.2 ft | 12.6 µg/L | - |
| 11 | Little Lake | Simcoe | B | 8.5 ft | 9.4 µg/L | - |
| 12 | Long Lake | Simcoe | B | 9.4 ft | 8.8 µg/L | - |
| 13 | St John Lake | Simcoe | B | 8.2 ft | 29.4 µg/L | - |
| 14 | Tea Lake | Simcoe | B | 4.8 ft | 15.2 µg/L | - |
| 15 | Little Lake | Simcoe | C | 5.9 ft | 20.5 µg/L | - |