Pinellas-Crescent Lake
Pinellas County, FloridaEutrophic
Pinellas-Crescent Lake is a productive, nutrient-rich eutrophic lake in Pinellas County, Florida. Water quality is graded D based on 2 sampling years through 2025. Compared to the 54 other monitored lakes in Pinellas County, Pinellas-Crescent Lake ranks #15 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-03-29. 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
Murky, only visible to about 4 ft. Phosphorus level: 77 µg/L. Trophic State Index: 62.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4 ft | D |
| Phosphorus | 77 µg/L | D |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 62 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #15 of 55 lakes in Pinellas County
Cleaner Lakes Within 30 Miles
Pinellas-Crescent Lake holds Grade D. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Pinellas County
More Florida Lake Rankings
Other Grade D Lakes in Florida
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: 2025-03-29
Monitoring stations: 3
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