Lake Manatee
Manatee County, FloridaHypereutrophic
Lake Manatee is a highly nutrient-loaded hypereutrophic lake in Manatee County, Florida. Water quality is graded D based on 2 sampling years through 2023. Compared to the 10 other monitored lakes in Manatee County, Lake Manatee ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2023-07-25. Grade methodology: LakeGrade methodology.
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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 3.3 ft of visibility. Phosphorus level: 330 µg/L. Trophic State Index: 74.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | D |
| Phosphorus | 330 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 74 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #6 of 11 lakes in Manatee County
Nearby Lakes in Manatee County
More Florida Lake Rankings
Other Grade D Lakes in Florida
Hypereutrophic 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: 2023-07-25
Monitoring stations: 1
Where to stay near Lake Manatee
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