Fontana Lake is a mesotrophic lake in Swain County, North Carolina. Water quality is graded A based on 2 sampling years through 2024.
Source: EPA Water Quality Portal sampling records, North Carolina DNR, last sampled 2024-11-05. 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 13.6 ft. Chlorophyll-a: 4.7 µg/L. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13.6 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 4.7 µg/L | A |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
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Location
County Ranking
Ranked #1 of 1 lakes in Swain County
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More North Carolina Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
Other Grade A Lakes in North Carolina
Mesotrophic Lakes in North Carolina
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: 2024-11-05
Monitoring stations: 3