Clarks Hill Lake is a mesotrophic lake in Lincoln County, Georgia. Water quality is graded C based on 1 sampling years through 2025. Compared to the 1 other monitored lakes in Lincoln County, Clarks Hill Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Georgia DNR, last sampled 2025-10-01. 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 6.7 ft. Chlorophyll-a: 7.2 µg/L. Trophic State Index: 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.7 ft | C |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 7.2 µg/L | C |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Clarks Hill Lake
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Fishing Clarks Hill Lake
Location
County Ranking
Ranked #1 of 2 lakes in Lincoln County
Nearby Lakes in Lincoln County
Explore Clarks Hill Lake across LakeGrade
More Georgia Lake Rankings
Other Grade C Lakes in Georgia
Mesotrophic Lakes in Georgia
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: 2025-10-01
Monitoring stations: 1