Lake Dell
Polk County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Lake Dell. Here is what has been measured.
- Limited data
Lake Dell in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 9.8 ft visibility. Phosphorus: 20 µg/L.
Lake Dell is a lake in Polk County, Florida. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2022-08-03. Methodology: how these readings are compared.
What Lake Dell is good for
From access and monitoring records, not editorial picks.
- Clear water9.8 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Dell is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Dell
These are the measurements Florida DEP publishes for Lake Dell, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 9.8 ft. Phosphorus 20 µg/L. TSI 46.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 9.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 20µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 46 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Lake Dell
Answers come straight from the public measurements and survey records on this page.
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Fishing Lake Dell
Water Quality Trend: Improving
Based on 6 years of monitoring (2020–2025).
Water clarity
Stable6 years
Phosphorus
Improving-0.51 µg/L/yr6 years
Nearby Lakes in Polk County
Frequently asked questions about Lake Dell
Where is Lake Dell?
- Lake Dell is a lake in Polk County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Lake Dell?
- Lake Dell in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 9.8 ft visibility. Phosphorus: 20 µg/L.
Is Lake Dell safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lake Dell across LakeQuality
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Where this data comes from
2 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples2 samples · 2022
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.