Big Pond is a mesotrophic lake in Bennington County, Vermont. Water quality is graded B based on 3 sampling years through 2025. Compared to the 15 other monitored lakes in Bennington County, Big Pond ranks #8 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-07-28. 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 7.5 ft. Phosphorus level: 13 µg/L. Chlorophyll-a: 4.2 µg/L. Trophic State Index: 45.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.5 ft | C |
| Phosphorus | 13 µg/L | A |
| Chlorophyll-a (Algae) | 4.2 µg/L | A |
| Trophic State Index (TSI) | 45 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Big Pond
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Fishing Big Pond
Location
County Ranking
Ranked #8 of 16 lakes in Bennington County
Cleaner Lakes Within 30 Miles
Big Pond holds Grade B. 2 nearby lakes hold higher grades.
- ASouth Stream PondBennington County · 7.8 mi · Higher grade (B → A)
- ASearsburg ReservoirBennington County · 6 mi · Higher grade (B → A)
Nearby Lakes in Bennington County
Explore Big Pond across LakeGrade
More Vermont Lake Rankings
Other Grade B Lakes in Vermont
Mesotrophic 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: 2025-07-28
Monitoring stations: 2