Griffin Lake
Lake County, FloridaEutrophic
Griffin Lake is a productive, nutrient-rich eutrophic lake in Lake County, Florida. Water quality is graded D based on 2 sampling years through 2024. Compared to the 316 other monitored lakes in Lake County, Griffin Lake ranks #276 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2024-07-22. Grade methodology: LakeGrade methodology.
Watch Griffin Lake water quality
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 2.3 ft of visibility. Phosphorus level: 50.9 µg/L. Trophic State Index: 63.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | F |
| Phosphorus | 50.9 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 63 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #276 of 317 lakes in Lake County
Cleaner Lakes Within 30 Miles
Griffin Lake holds Grade D. 2 nearby lakes hold higher grades.
- CLake GriffinLake County · 1.9 mi · Higher grade (D → C)
- CLgs LakeLake County · 2.3 mi · Higher grade (D → C)
Nearby Lakes in Lake County
More Florida Lake Rankings
Other Grade D Lakes in Florida
Eutrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-07-22
Monitoring stations: 1
Where to stay near Griffin Lake
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