Cleanest Lakes in Denton County, Texas
Ray Roberts Lake Site in Denton County leads the rankings with a water quality grade of B and 3.9 ft of clarity. Below are the top 5 cleanest monitored lakes in Denton County, Texas, ranked by EPA water quality score.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Ray Roberts Lake Site | Denton | B | 3.9 ft | 20.1 µg/L | 15.6 µg/L |
| 2 | Lewisville Lake | Denton | C | 1.8 ft | 43 µg/L | 26.8 µg/L |
| 3 | Grapevine Lake Northwest | Denton | C | 2.4 ft | 40 µg/L | 27.6 µg/L |
| 4 | Lewisville Lake Site | Denton | C | 2.4 ft | 30 µg/L | 30.1 µg/L |
| 5 | Lewisville Lake Elm Fork | Denton | D | 2.4 ft | 70 µg/L | 61.6 µg/L |