Lake Hortonia is a mesotrophic lake in Rutland County, Vermont. Water quality is graded A based on 3 sampling years through 2025. Compared to the 29 other monitored lakes in Rutland County, Lake Hortonia ranks #18 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-08-12. 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: 14.7 µg/L. Chlorophyll-a: 2.8 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.8 ft | B |
| Phosphorus | 14.7 µg/L | A |
| Chlorophyll-a (Algae) | 2.8 µg/L | A |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lake Hortonia
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Fishing Lake Hortonia
Location
County Ranking
Ranked #18 of 30 lakes in Rutland County
Nearby Lakes in Rutland County
Explore Lake Hortonia across LakeGrade
More Vermont Lake Rankings
Other Grade A 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: 2025-08-12
Monitoring stations: 3