Amherst Lake is a cold, clear oligotrophic lake in Windsor County, Vermont. Water quality is graded A based on 3 sampling years through 2025. Compared to the 20 other monitored lakes in Windsor County, Amherst Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-08-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 15.4 ft down. Phosphorus level: 8.8 µg/L. Chlorophyll-a: 1.2 µg/L. Trophic State Index: 35.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 15.4 ft | A |
| Phosphorus | 8.8 µg/L | A |
| Chlorophyll-a (Algae) | 1.2 µg/L | A |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Amherst Lake
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Fishing Amherst Lake
Location
County Ranking
Ranked #2 of 21 lakes in Windsor County
Nearby Lakes in Windsor County
Explore Amherst Lake across LakeGrade
More Vermont Lake Rankings
Other Grade A Lakes in Vermont
Oligotrophic 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: 2025-08-22
Monitoring stations: 1