South Pond is a cold, clear oligotrophic lake in Windham County, Vermont. Water quality is graded A based on 3 sampling years through 2025. Compared to the 18 other monitored lakes in Windham County, South Pond ranks #12 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-07-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 14.8 ft. Phosphorus level: 13.1 µg/L. Chlorophyll-a: 2.3 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.8 ft | B |
| Phosphorus | 13.1 µg/L | A |
| Chlorophyll-a (Algae) | 2.3 µg/L | A |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near South Pond
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Fishing South Pond
Location
County Ranking
Ranked #12 of 19 lakes in Windham County
Nearby Lakes in Windham County
Explore South Pond 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: 2025-07-22
Monitoring stations: 1