Alafia State Park Lake
Hillsborough County, FloridaHypereutrophic
Alafia State Park Lake is a highly nutrient-loaded hypereutrophic lake in Hillsborough County, Florida. Water quality is graded F based on 2 sampling years through 2024. Compared to the 221 other monitored lakes in Hillsborough County, Alafia State Park Lake ranks #202 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2024-07-15. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 1 ft of visibility. Phosphorus level: 650 µg/L. Trophic State Index: 87.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1 ft | F |
| Phosphorus | 650 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 87 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #202 of 222 lakes in Hillsborough County
Nearby Lakes in Hillsborough County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Polk County · Clarity: 1.3 ft
Polk County · Clarity: 1 ft
Alachua County · Clarity: 2.4 ft
Volusia County · Clarity: 2 ft
Brevard County · Clarity: 1.6 ft
Highlands County · Clarity: 1 ft
Hypereutrophic Lakes in Florida
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Alafia State Park Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger.
- Mosaic Fertilizer, Llc - Lonesome MineLithia · 3 mi away · NPDES FL0033332Major
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: 2024-07-15
Monitoring stations: 1
Where to stay near Alafia State Park Lake
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