Mesotrophic Lakes in Georgia
14 mesotrophic lakes in Georgia. Moderate nutrients, good water quality.
Most well-managed working lakes register as mesotrophic — the band that balances productivity with clarity. 14 lakes in Georgia sit in the mesotrophic band. About 0% are deep (50+ ft); the rest are shallower basins where watershed management keeps nutrients from pushing the system into eutrophy.
Mesotrophic lakes tend to grade B or C on our A–F scale — the productive-but-clear band lines up with the middle of the letter grades.
| # | Lake | County | Grade | Clarity | Depth | TSI |
|---|---|---|---|---|---|---|
| 1 | Lake Worth | Dougherty | A | 3.7 ft | - | 55 |
| 2 | Flint River Reservoir | Dougherty | A | 4.3 ft | - | 52 |
| 3 | Harl Lake | Harris | A | 6.1 ft | - | 46 |
| 4 | Lake Blue Ridge | Fannin | C | 9.5 ft | - | 45 |
| 5 | Goat Rock Lake | Harris | C | 5.2 ft | - | 49 |
| 6 | Lake Oliver | Muscogee | C | 6.1 ft | - | 49 |
| 7 | Lake Juliette | Monroe | C | 8.5 ft | - | 46 |
| 8 | Lake Harding | Harris | C | 6 ft | - | 48 |
| 9 | Lake Nottely | Union | C | 8.9 ft | - | 48 |
| 10 | Lake Lanier Upstream From Flowery Branch Confluence | Hall | C | 13 ft | - | 45 |
| 11 | Lake Burton | Rabun | C | 12.5 ft | - | 44 |
| 12 | Lake Rabun | Rabun | C | 10.9 ft | - | 45 |
| 13 | Clarks Hill Lake | Columbia | C | 7.9 ft | - | 48 |
| 14 | Lake Hartwell | Hart | C | 13.5 ft | - | 44 |
All mesotrophic lakes →Minnesota version →Wisconsin version →Illinois version →Michigan version →Iowa version →Ohio version →Pennsylvania version →New York version →Missouri version →Indiana version →North Dakota version →South Dakota version →Florida version →Colorado version →North Carolina version →Vermont version →Texas version →Oregon version →Arkansas version →Oklahoma version →Kansas version →Nebraska version →Nevada version →Arizona version →Idaho version →Montana version →New Mexico version →Tennessee version →Alabama version →Virginia version →Kentucky version →Utah version →Washington version →Wyoming version →Massachusetts version →Ontario version →Québec version →Nova Scotia version →British Columbia version →Newfoundland and Labrador version →All Georgia lakes →
Source: EPA National Aquatic Resource Surveys, 2026.