Periwinkle Pines Lake
Lee County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Periwinkle Pines Lake. Here is what has been measured.
- Eutrophic
- Impaired · Algal growth
- Limited data
Periwinkle Pines Lake in Lee County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 54.5 µg/L.
Periwinkle Pines Lake is a productive, nutrient-rich eutrophic lake in Lee County, Florida. Overall water quality is improving over recent sampling years. Compared to the 73 other monitored lakes in Lee County, Periwinkle Pines Lake ranks #9 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-16. Methodology: how these readings are compared.
Swimming conditions
Readings onlyRecreation use not supported
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Periwinkle Pines Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Whether Periwinkle Pines Lake 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 Periwinkle Pines Lake
These are the measurements Florida DEP publishes for Periwinkle Pines Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 54.5 µg/L. TSI 62.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 54.5µg/L | Fair GoodFairPoor |
| 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. | 62 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Periwinkle Pines Lake
Answers come straight from the public measurements and survey records on this page.
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Fishing Periwinkle Pines Lake
Water quality readings over time
2 seasons of samples on record (2020–2022). Calling a direction takes at least 4 years of the same measurement.
Phosphorus
Improving-50.5 µg/L/yr2 years
EPA Impairment Status
Periwinkle Pines Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Recreation.
Source: EPA ATTAINS assessment unit FL2092H · Official waterbody report
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Periwinkle Pines Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger.
- Sanibel, City OfSanibel · 0.1 mi away · NPDES FLS266957Major
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.
Nearby Lakes in Lee County
Frequently asked questions about Periwinkle Pines Lake
Where is Periwinkle Pines Lake?
- Periwinkle Pines Lake is a lake in Lee County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Periwinkle Pines Lake?
- Periwinkle Pines Lake in Lee County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 54.5 µg/L.
Is Periwinkle Pines Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Periwinkle Pines Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
Explore Periwinkle Pines Lake across LakeQuality
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Where this data comes from
5 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples5 samples · 2020–2025
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)