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LakeQuality
Late afternoon sun over Slim Lake, scattering a bright path across wind-textured water
B

Windsor County Lake Quality

Vermont, 26 lakes, average grade B (Good)

Windsor County's 26 monitored lakes fall in the moderate-density bracket for Vermont. The county-level average smooths over real differences — a single agricultural watershed near the southwest corner can pull the average down even if the rest of the county runs clean. 8 of those lakes carry an A–F grade. The county-level summary describes that subset, not every water body listed. With an average grade of B, Windsor County sits comfortably above the Vermont median.

The county's lakes lean shallow, which makes the grades sensitive to wind, sediment-resuspension, and any nutrient inputs from the watershed. The cleanest lake on the books is Rescue Lake (A); the most-stressed is Pond Known by Vtdec As Goulds (D).

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Top-rated places to stay near Windsor County

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All Lakes in Windsor County

26 lakes · 8 graded, 18 not rated8 graded lakes · 18 not rated, hidden

#LakeGradeClarityPhosphorusAlgaeTrophicAccess
1ARescue LakeWindsorA15.1 ft10.7 µg/L2.2 µg/LNo recent samples✓ Public
2AEcho LakeWindsorA13.9 ft8.3 µg/L1.6 µg/LNo recent samples✓ Public
3ALakota LakeWindsorA8 ft12.1 µg/L2.7 µg/LNo recent samplesNot recorded
4AAmherst LakeWindsorA15.4 ft8.8 µg/L1.2 µg/LNo recent samples✓ Public
5BReservoir PondWindsorB14.7 ft6.2 µg/L0.8 µg/LNo recent samplesNot recorded
6CLake RunnemedeWindsorC8.2 ft22.9 µg/L4.2 µg/LNo recent samplesNot recorded
7CSilver LakeWindsorC13.1 ft13.5 µg/L5.2 µg/LNo recent samplesNot recorded
8DPond Known by Vtdec As GouldsWindsorD4.3 ft35.4 µg/L5 µg/LNo recent samples✓ Public
NRKnapp Brook LakeWindsorNR3.6 ftNo recent samplesNo recent samplesNo recent samples✓ Public
NRLake PinneoWindsorNR7.5 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRStoughton PondWindsorNR9 ftNo recent samplesNo recent samplesNo recent samplesNot recorded
NRMcintosh PondWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
NRWoodward ReservoirWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
NRUnnamed Pond Referred To by Vtdec AsWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRNorford LakeWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRNorth Hartland ReservoirWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
NRMill PondWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRTiny PondWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRDeweys Mill PondWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRMecawee PondWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRBlack PondWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRWantastiquet LakeWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NREcho LakeWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samples✓ Public
NRKnapp Brook PondsWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRMitchell PondWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded
NRNorth Springfield ReservoirWindsorNRNo recent samplesNo recent samplesNo recent samplesNo recent samplesNot recorded

NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.

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Source: EPA National Aquatic Resource Surveys, 2026.