Eagle Lake
Pinellas County, FloridaEutrophic
Eagle 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, Eagle Lake ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-05-19. Grade methodology: LakeGrade methodology.
Watch Eagle 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 3.1 ft of visibility. Phosphorus level: 81.5 µg/L. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.1 ft | D |
| Phosphorus | 81.5 µg/L | D |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #17 of 55 lakes in Pinellas County
Cleaner Lakes Within 30 Miles
Eagle 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
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Eagle Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger.
- Largo, City OfLargo · 1.2 mi away · NPDES FLS648256Major
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2025-05-19
Monitoring stations: 2
Where to stay near Eagle Lake
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