Coles Pond is a cold, clear oligotrophic lake in Caledonia County, Vermont. Water quality is graded A based on 3 sampling years through 2025. Compared to the 22 other monitored lakes in Caledonia County, Coles Pond ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-08-20. 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 11.8 ft. Phosphorus level: 8.8 µg/L. Chlorophyll-a: 2.9 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.8 ft | B |
| Phosphorus | 8.8 µg/L | A |
| Chlorophyll-a (Algae) | 2.9 µg/L | A |
| Trophic State Index (TSI) | 39 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Coles Pond
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Fishing Coles Pond
Location
County Ranking
Ranked #9 of 23 lakes in Caledonia County
Nearby Lakes in Caledonia County
Explore Coles 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: 2025-08-20
Monitoring stations: 2