Elfin Lake 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, Elfin Lake ranks #19 for water quality.
Source: EPA Water Quality Portal sampling records, Vermont DNR, last sampled 2025-08-26. 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 10.8 ft. Phosphorus level: 13.6 µg/L. Chlorophyll-a: 4 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.8 ft | B |
| Phosphorus | 13.6 µg/L | A |
| Chlorophyll-a (Algae) | 4 µg/L | A |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Elfin Lake
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Fishing Elfin Lake
Location
County Ranking
Ranked #19 of 30 lakes in Rutland County
Nearby Lakes in Rutland County
Explore Elfin Lake 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: 2025-08-26
Monitoring stations: 1