Middle of Lake Francis
Madison County, FloridaHypereutrophic
Middle of Lake Francis is a highly nutrient-loaded hypereutrophic lake in Madison County, Florida. Water quality is graded F based on 2 sampling years through 2025. Compared to the 30 other monitored lakes in Madison County, Middle of Lake Francis ranks #30 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-07-17. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1.6 ft of visibility. Phosphorus level: 135 µg/L. Trophic State Index: 72.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.6 ft | F |
| Phosphorus | 135 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 72 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #30 of 31 lakes in Madison County
Cleaner Lakes Within 30 Miles
Middle of Lake Francis holds Grade F. 3 nearby lakes hold higher grades.
- DRigginslakeeastMadison County · 5.8 mi · Higher grade (F → D)
- DRigginslakecenterMadison County · 5.8 mi · Higher grade (F → D)
- DLake FrancisMadison County · 0.1 mi · Higher grade (F → D)
Nearby Lakes in Madison County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Hypereutrophic Lakes in Florida
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-07-17
Monitoring stations: 1
Where to stay near Middle of Lake Francis
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