Safest Lakes to Swim In in Tennessee
3 lakes in Tennessee qualify as safest for swimming, all hold grade A or B and report chlorophyll-a (algae) under 10 µg/L. Always check local advisories on the day you swim.
Ranked List
| # | Lake | County | Grade | Clarity | Phosphorus | Algae |
|---|---|---|---|---|---|---|
| 1 | Nla Lake | Polk | A | 5.4 ft | 15.2 µg/L | 1.3 µg/L |
| 2 | Nla Lake | Marion | B | 6.7 ft | 41.3 µg/L | 3 µg/L |
| 3 | Nla Lake | Greene | B | 2.5 ft | 59.2 µg/L | 1.1 µg/L |