Knapp Brook Lake is a productive, nutrient-rich eutrophic lake in Windsor County, Vermont. Water quality is graded D based on 1 sampling years through 2024. Compared to the 20 other monitored lakes in Windsor County, Knapp Brook Lake ranks #21 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2024-05-02. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Murky, only visible to about 3.6 ft. Trophic State Index: 59.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.6 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 59 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Knapp Brook Lake
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Fishing Knapp Brook Lake
Location
County Ranking
Ranked #21 of 21 lakes in Windsor County
Cleaner Lakes Within 30 Miles
Knapp Brook Lake holds Grade D. 5 nearby lakes hold higher grades.
- ARescue LakeWindsor County · 6.8 mi · Two grade letters higher (D → A)
- AAmherst LakeWindsor County · 7.5 mi · Two grade letters higher (D → A)
- ATiny PondWindsor County · 8.1 mi · Two grade letters higher (D → A)
- AMecawee PondWindsor County · 8.4 mi · Two grade letters higher (D → A)
- AMill PondWindsor County · 8.6 mi · Two grade letters higher (D → A)
Nearby Lakes in Windsor County
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Eutrophic Lakes in Vermont
More records, surveys & data sources
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-05-02
Monitoring stations: 2