St Lucie-Savanna-Indrio Lake
St. Lucie County, FloridaOligotrophic
St Lucie-Savanna-Indrio Lake is a cold, clear oligotrophic lake in St. Lucie County, Florida. Water quality is graded A based on 2 sampling years through 2024. Compared to the 13 other monitored lakes in St. Lucie County, St Lucie-Savanna-Indrio Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2024-04-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 10 ft. Phosphorus level: 9 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10 ft | B |
| Phosphorus | 9 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Location
County Ranking
Ranked #1 of 14 lakes in St. Lucie County
Nearby Lakes in St. Lucie County
More Florida Lake Rankings
Other Grade A Lakes in Florida
Highlands County · Clarity: 16 ft
Walton County · Clarity: 9 ft
Highlands County · Clarity: 13.2 ft
Seminole County · Clarity: 11 ft
Seminole County · Clarity: 13 ft
Orange County · Clarity: 11.5 ft
Oligotrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of St Lucie-Savanna-Indrio Lake under Clean Water Act (NPDES) discharge permits.
- Fau - Harbor Branch Oceanographic InstituteFort Pierce · 0.5 mi away · NPDES FL0139912
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: 2024-04-08
Monitoring stations: 3
Where to stay near St Lucie-Savanna-Indrio Lake
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