Cole Pond is a cold, clear oligotrophic lake in Windham County, Vermont. Water quality is graded B based on 3 sampling years through 2025. Compared to the 18 other monitored lakes in Windham County, Cole Pond ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-08-28. Grade methodology: LakeGrade methodology.
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Moderate clarity, visible to about 9.8 ft. Phosphorus level: 9.9 µg/L. Chlorophyll-a: 2.2 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.8 ft | C |
| Phosphorus | 9.9 µg/L | A |
| Chlorophyll-a (Algae) | 2.2 µg/L | A |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
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Fishing Cole Pond
Location
County Ranking
Ranked #17 of 19 lakes in Windham County
Cleaner Lakes Within 30 Miles
Cole Pond holds Grade B. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Windham County
Explore Cole Pond across LakeGrade
More Vermont Lake Rankings
Other Grade B 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: 2025-08-28
Monitoring stations: 2