Isabell Lake
Polk County, FloridaEutrophic
Isabell Lake is a productive, nutrient-rich eutrophic lake in Polk County, Florida. Water quality is graded C based on 2 sampling years through 2020. Compared to the 360 other monitored lakes in Polk County, Isabell Lake ranks #87 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2020-09-22. Grade methodology: LakeGrade methodology.
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 4.1 ft. Phosphorus level: 22.5 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.1 ft | D |
| Phosphorus | 22.5 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #87 of 361 lakes in Polk County
Cleaner Lakes Within 30 Miles
Isabell Lake holds Grade C. 5 nearby lakes hold higher grades.
- BLake DamonHighlands County · 2 mi · Higher grade (C → B)
- BHighlands-Pioneer LakeHighlands County · 2.2 mi · Higher grade (C → B)
- BHighlands-Pythias LakeHighlands County · 1.6 mi · Higher grade (C → B)
- BHighlands-Trout LakePolk County · 1.9 mi · Higher grade (C → B)
- BHighlands-Damon LakeHighlands County · 2.4 mi · Higher grade (C → B)
Nearby Lakes in Polk County
More Florida Lake Rankings
Other Grade C Lakes in Florida
Orange County · Clarity: 3.5 ft
Walton County · Clarity: 4.2 ft
Seminole County · Clarity: 4.5 ft
Seminole County · Clarity: 2.9 ft
Volusia County · Clarity: 4.5 ft
Seminole County · Clarity: 3 ft
Eutrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2020-09-22
Monitoring stations: 1
Where to stay near Isabell Lake
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