Clinch River Lake is a productive, nutrient-rich eutrophic lake in Roane County, Tennessee. Water quality is graded C based on 1 sampling years through 2026. Compared to the 3 other monitored lakes in Roane County, Clinch River Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Tennessee DNR, last sampled 2026-05-27. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
No clarity data. Phosphorus level: 30.4 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 30.4 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Clinch River Lake
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Fishing Clinch River Lake
Location
County Ranking
Ranked #3 of 4 lakes in Roane County
Nearby Lakes in Roane County
Explore Clinch River Lake across LakeGrade
More Tennessee Lake Rankings
Other Grade C Lakes in Tennessee
Eutrophic Lakes in Tennessee
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: 2026-05-27
Monitoring stations: 2