Mesotrophic Lakes in Texas
10 mesotrophic lakes in Texas. Moderate nutrients, good water quality.
Mesotrophic lakes are the productive middle of the trophic scale — TSI between 40 and 50. Clear enough to be inviting, productive enough to support a strong fishery, with moderate phosphorus and a modest algal community that does not dominate the optical signal. 10 lakes in {{stateName}} 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 the LakeGrade rubric — the productive-but-clear band lines up with the middle of the letter grades.
| # | Lake | County | Grade | Clarity | Depth | TSI |
|---|---|---|---|---|---|---|
| 1 | Canyon Lake Headwaters | Comal | A | 4.6 ft | - | 47 |
| 2 | Canyon Lake Mid Lake | Comal | A | 4.6 ft | - | 46 |
| 3 | Lake Daingerfield Headwaters | Morris | A | 8.5 ft | - | 45 |
| 4 | Lake Kemp | Baylor | B | 3.7 ft | - | 49 |
| 5 | Lake Jacksonville | Cherokee | B | 7.4 ft | - | 48 |
| 6 | Brandy Branch Reservoir | Harrison | B | 12 ft | - | 42 |
| 7 | Lake Hawkins | Wood | B | 6.7 ft | - | 49 |
| 8 | Amistad Reservoir | Val Verde | B | 8.2 ft | - | 46 |
| 9 | Amistad Reserv Rio Grande Arm Lake | Val Verde | B | 5.2 ft | - | 50 |
| 10 | Lake Averhoff Upstream Tpwd Ramp | Zavala | B | 8.2 ft | - | 48 |
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 →All Texas lakes →
Source: EPA National Aquatic Resource Surveys, 2026.