Tennessee River Lake is a productive, nutrient-rich eutrophic lake in Rhea County, Tennessee. Water quality is graded C based on 1 sampling years through 2026. Compared to the 1 other monitored lakes in Rhea County, Tennessee River Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, Tennessee DNR, last sampled 2026-06-11. 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. Phosphorus level: 28.2 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.1 ft | C |
| Phosphorus | 28.2 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Tennessee River Lake
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Fishing Tennessee River Lake
Location
County Ranking
Ranked #2 of 2 lakes in Rhea County
Nearby Lakes in Rhea County
Explore Tennessee 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: 2026-06-11
Monitoring stations: 1