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LakeQuality

Most well-managed working lakes register as mesotrophic — the band that balances productivity with clarity. 76 lakes in Vermont 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 sit in the middle of the phosphorus and chlorophyll-a range: productive but still clear, with readings that rarely reach the EPA's poorest condition class.

#LakeCountyClarityDepthTSI
1Lake St. CatherineRutland15.4 ft-40
2Malletts Bay LakeChittenden13.8 ft-40
3Peacham PondCaledonia15.6 ft-38
4Wallingford PondRutland7.1 ft-45
5Lake GrotonCaledonia13.1 ft-40
6Rescue LakeWindsor15.1 ft-38
7Lake HortoniaRutland14.8 ft-41
8Coles PondCaledonia11.8 ft-39
9Sabin PondWashington15.7 ft-37
10Lake RapondaWindham11.3 ft-40
11Curtis PondWashington15.3 ft-40
12Lake FairleeOrange21.7 ft-39
13Lake MoreyOrange19.7 ft-39
14South PondWindham14.8 ft-40
15South PondLamoille15.4 ft-37
16Lake EdenLamoille12.8 ft-41
17Lake MirrorWashington21.3 ft-37
18Joes PondCaledonia13.5 ft-41
19Lake DunmoreAddison16.4 ft-39
20Sunset LakeOrange--41
21Stratton PondWindham8.2 ft-43
22Chipman LakeRutland9.4 ft-44
23Lake ElmoreLamoille9.8 ft-43
24Lake SalemOrleans13.1 ft-41
25Cole PondWindham9.8 ft-40
26Lake GreenwoodWashington18 ft-39
27Perch PondRutland20.3 ft-37
28Holland PondOrleans7.9 ft-44
29Miles PondEssex13.1 ft-39
30Big PondBennington7.5 ft-44
31Lake ParkerOrleans13.1 ft-43
32Halls LakeOrange13.9 ft-42
33Elfin LakeRutland10.8 ft-43
34Waterbury ReservoirWashington--38
35Fairfield PondFranklin19.7 ft-39
36Lake NinevahRutland8.2 ft-41
37Lake MansfieldLamoille6.9 ft-44
38East Long PondWashington20.7 ft-39
39Lakota LakeWindsor8 ft-42
40Hapgood PondBennington9.2 ft-42
41Norton PondEssex7.9 ft-42
42Clyde PondOrleans9.4 ft-43
43Danby PondRutland2 ft-51
44Little Hosmer PondOrleans--38
45Fosters PondCaledonia--41
46Little PondBennington7.2 ft-43
47Grout PondWindham8.5 ft-43
48Stamford PondBennington9.5 ft-43
49Haystack PondWindham9.6 ft-41
50Forester PondWindham5.9 ft-44
51Otter Creek Section LakeAddison9.8 ft-45
52Valley LakeWashington24.4 ft-39
53Little PondRutland4.9 ft-47
54Burlington Bay LakeChittenden14.8 ft-41
55South Bay LakeOrleans4.4 ft-51
56Lake MemphremagogOrleans10.5 ft-45
57Northeast Arm LakeFranklin13.5 ft-45
58Port Henry Section LakeAddison10.8 ft-44
59Indian Brook ReservoirChittenden12.1 ft-46
60Great Hosmer PondOrleans20.3 ft-42
61Shelburne Bay LakeChittenden14.1 ft-41
62High PondRutland21.3 ft-40
63Branch PondBennington7.9 ft-47
64Hardwood PondLamoille6.9 ft-47
65Ticklenaked PondCaledonia8.9 ft-45
66Martins PondCaledonia12.1 ft-45
67Lake RunnemedeWindsor8.2 ft-47
68Isle la Motte LakeGrand Isle15.1 ft-42
69Gillett PondChittenden3.1 ft-54
70Forest LakeEssex4.1 ft-50
71Silver LakeWindsor13.1 ft-43
72Colchester PondChittenden8.9 ft-45
73Fern LakeAddison20.7 ft-42
74Spring LakeRutland21.3 ft-40
75West Mountain PondEssex--48
76Pond Known by Vtdec As GouldsWindsor4.3 ft-53

Source: EPA National Aquatic Resource Surveys, 2026.