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LakeQuality

Most well-managed working lakes register as mesotrophic — the band that balances productivity with clarity. 29 lakes in North Carolina 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.

#LakeCountyGradeClarityDepthTSI
1Sutton LakeNew HanoverA10 ft-46
2Center of Sutton LakeNew HanoverA6.7 ft-50
3Lake WaccamawColumbusA--48
4Rockingham City LakeRichmondA--51
5Lake JulianBuncombeA--46
6Water LakeRichmondA--42
7Burnett ReservoirBuncombeA--44
8Catawba Riv LakeMecklenburgC6.6 ft-45
9Buckeye LakeWataugaC7.5 ft-48
10Asu LakeWataugaC12.3 ft-47
11Lake SequoyahMaconC5.4 ft-52
12Chatuge LakeClayC11.6 ft-44
13Belews LakeStokesC11.6 ft-46
14Hanging Rock LakeStokesC5.9 ft-51
15Fontana LakeSwainC13.6 ft-46
16Fontana LakeGrahamC14.1 ft-46
17Nantahala LakeMaconC12.5 ft-45
18Santeetlah LakeGrahamC14.3 ft-45
19Apalachia LakeCherokeeC13.1 ft-45
20Roanoke Rapids LakeHalifaxC6.1 ft-51
21Thorpe ReservoirJacksonC8.7 ft-49
22Bear Creek ReservoirJacksonC7.7 ft-48
23Lake Ben JohnsonOrangeC3.3 ft-56
24Phelps LakeWashingtonC3.6 ft-56
25Lake JamesBurkeC--51
26Mountain Island LakeGastonC--48
27Allen Creek ReservoirHaywoodC--49
28Beetree ReservoirBuncombeC--48
29Newton City LakeCatawbaC--48

Source: EPA National Aquatic Resource Surveys, 2026.