Polk-Gaskin'S Cut Lake
Polk County, FloridaHypereutrophic
Polk-Gaskin'S Cut Lake is a highly nutrient-loaded hypereutrophic lake in Polk County, Florida. Water quality is graded F based on 2 sampling years through 2025. Compared to the 360 other monitored lakes in Polk County, Polk-Gaskin'S Cut Lake ranks #305 for water quality.
Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-04-17. 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 1.4 ft of visibility. Phosphorus level: 374 µg/L. Trophic State Index: 81.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.4 ft | F |
| Phosphorus | 374 µg/L | F |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 81 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Location
County Ranking
Ranked #305 of 361 lakes in Polk County
Cleaner Lakes Within 30 Miles
Polk-Gaskin'S Cut Lake holds Grade F. One nearby lake has a higher grade.
See full comparison →Nearby Lakes in Polk County
More Florida Lake Rankings
Other Grade F Lakes in Florida
Hypereutrophic Lakes in Florida
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Polk-Gaskin'S Cut 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.
- Mosaic Fertilizer, Llc - Green Bay Chemical PlantBartow · 4.2 mi away · NPDES FL0000752MajorRecent violation
- Mulberry Phosphogypsum Stack System ClosureMulberry · 3.5 mi away · NPDES FL0334944Major
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: 2025-04-17
Monitoring stations: 3
Where to stay near Polk-Gaskin'S Cut Lake
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