Roane County Lake Quality
Tennessee, 5 lakes, average grade C (Fair)
Roane County has 5 monitored lakes — a thin enough sample that one or two stressed lakes can move the county average noticeably. Use the per-lake pages below for what actually matters. 4 of those lakes carry an A–F grade. The county-level summary describes that subset, not every water body listed. The county average is C — the middle of the rubric, with one or two lakes pulling the average up or down depending on year.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Tennessee River Lake (C) is the cleanest in the county.
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Quick Answers for Roane County
Planning a trip? Check special fishing regulations for Tennessee River Lake — or check the official Tennessee fishing regulations.
All Lakes in Roane County
5 lakes · 4 graded, 1 not rated4 graded lakes · 1 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | CTennessee River LakeRoane | C | No recent samples | 28.6 µg/L | No recent samples | No recent samples | ✓ Public |
| 2 | CEmory River LakeRoane | C | No recent samples | 22.9 µg/L | No recent samples | No recent samples | ✓ Public |
| 3 | DClinch River LakeRoane | D | No recent samples | 36 µg/L | No recent samples | No recent samples | ✓ Public |
| 4 | DCaney Creek LakeRoane | D | No recent samples | 55.9 µg/L | No recent samples | No recent samples | ✓ Public |
| NRWhiteoak LakeRoane | NR | No recent samples | No recent samples | No recent samples | No recent samples | ✓ Public |
NR = not rated: there is not enough recent sampling to support a letter. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
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Other Counties in Tennessee
See how Roane County stacks up in the national county water-quality rankings, or browse the full directory of graded lakes across all United States (49 states), Canada (Ontario, Québec, Nova Scotia, British Columbia and Newfoundland and Labrador), and 38 other country hubs..
Source: EPA National Aquatic Resource Surveys, 2026.