Hillsborough-Twin Lake
Hillsborough County, FloridaEutrophic
Hillsborough-Twin Lake is a productive, nutrient-rich eutrophic lake in Hillsborough County, Florida. Water quality is graded C based on 2 sampling years through 2024. Compared to the 221 other monitored lakes in Hillsborough County, Hillsborough-Twin Lake ranks #84 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2024-08-19. Grade methodology: LakeGrade methodology.
Watch Hillsborough-Twin Lake water quality
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 4.4 ft. Phosphorus level: 24 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.4 ft | D |
| Phosphorus | 24 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #84 of 222 lakes in Hillsborough County
Cleaner Lakes Within 30 Miles
Hillsborough-Twin Lake holds Grade C. 2 nearby lakes hold higher grades.
- BWhitetrout LakeHillsborough County · 0.6 mi · Higher grade (C → B)
- BHillsborough-Boot LakeHillsborough County · 0.7 mi · Higher grade (C → B)
Nearby Lakes in Hillsborough County
More Florida Lake Rankings
Other Grade C Lakes in Florida
Orange County · Clarity: 3.5 ft
Walton County · Clarity: 4.2 ft
Seminole County · Clarity: 4.5 ft
Seminole County · Clarity: 2.9 ft
Polk County · Clarity: 3.5 ft
Volusia County · Clarity: 4.5 ft
Eutrophic Lakes in Florida
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-08-19
Monitoring stations: 3
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