St Lucie-Savanna Lake
St. Lucie County, FloridaMesotrophic
St Lucie-Savanna Lake is a mesotrophic lake in St. Lucie County, Florida. Water quality is graded B based on 2 sampling years through 2020. Compared to the 13 other monitored lakes in St. Lucie County, St Lucie-Savanna Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2020-12-06. Grade methodology: LakeGrade methodology.
Watch St Lucie-Savanna Lake water quality
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Murky, only visible to about 4.8 ft. Phosphorus level: 5 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.8 ft | D |
| Phosphorus | 5 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Location
County Ranking
Ranked #3 of 14 lakes in St. Lucie County
Nearby Lakes in St. Lucie County
More Florida Lake Rankings
Other Grade B Lakes in Florida
Bay County · Clarity: 4 ft
Brevard County · Clarity: 9.8 ft
Alachua County · Clarity: 5.5 ft
Seminole County · Clarity: 5 ft
Marion County · Clarity: 7 ft
Hillsborough County · Clarity: 6 ft
Mesotrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
3 EPA-permitted facilities operate within about 5 miles of St Lucie-Savanna Lake under Clean Water Act (NPDES) discharge permits, including 2 classified by the EPA as major dischargers. 1 facility has a reported Clean Water Act violation in the past three years.
- Slcud South Hutchinson Island Water Reclamation FacilityJensen Beach · 2.8 mi away · NPDES FL0139475MajorRecent violation
- Fpl St. Lucie Power PlantJensen Beach · 3.3 mi away · NPDES FL0002208Major
- Murphy Usa #7899 Port St. LuciePort St Lucie · 2.6 mi away · NPDES FL0A00095
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)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-12-06
Monitoring stations: 3
Where to stay near St Lucie-Savanna Lake
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