Round Pond is a mesotrophic lake in Rensselaer County, New York. Water quality is graded C based on 1 sampling years through 2020. Compared to the 6 other monitored lakes in Rensselaer County, Round Pond ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, New York DNR, last sampled 2020-09-13. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 7.1 ft. Trophic State Index: 49.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.1 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 49 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Round Pond
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Fishing Round Pond
Location
County Ranking
Ranked #5 of 7 lakes in Rensselaer County
Nearby Lakes in Rensselaer County
Explore Round Pond across LakeGrade
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Species activity outlook by water temperature and season
Where to stay at New York's top lakes, each with its grade
Moderate nutrients, good water quality
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More records, surveys & data sources
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Round Pond under Clean Water Act (NPDES) discharge permits.
- Nys Cherry Plain State ParkCherry Plain · 2 mi away · NPDES NY0124125
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-09-13
Monitoring stations: 1