Lake Carroll Middle
Hillsborough County, FloridaLimited DataEutrophic
Lake Carroll Middle is a productive, nutrient-rich eutrophic lake in Hillsborough County, Florida. Water quality is graded D based on 1 sampling years through 2025. Compared to the 221 other monitored lakes in Hillsborough County, Lake Carroll Middle ranks #164 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-07-08. Grade methodology: LakeGrade methodology.
Watch Lake Carroll Middle water quality
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
No clarity data. Phosphorus level: 68 µg/L. Trophic State Index: 65.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 68 µg/L | D |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 65 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #164 of 222 lakes in Hillsborough County
Cleaner Lakes Within 30 Miles
Lake Carroll Middle holds Grade D. 5 nearby lakes hold higher grades.
- AHillsborough-Carroll LakeHillsborough County · 0.1 mi · Two grade letters higher (D → A)
- BHillsborough-Boot LakeHillsborough County · 0.8 mi · Two grade letters higher (D → B)
- BHillsborough-Mid LakeHillsborough County · 0.8 mi · Two grade letters higher (D → B)
- BHillsborough-Pine LakeHillsborough County · 1 mi · Two grade letters higher (D → B)
- CHillsborough-Eckles LakeHillsborough County · 0.9 mi · Higher grade (D → C)
Nearby Lakes in Hillsborough 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: 2025-07-08
Monitoring stations: 1
Where to stay near Lake Carroll Middle
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