Seminole-East Lake
Seminole County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Seminole-East Lake. Here is what has been measured.
- Eutrophic
Seminole-East Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 3.5 ft visibility. Phosphorus: 60.5 µg/L.
Seminole-East Lake is a productive, nutrient-rich eutrophic lake in Seminole County, Florida. Water clarity is declining over recent sampling years. Compared to the 121 other monitored lakes in Seminole County, Seminole-East Lake ranks #112 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-03-19. Methodology: how these readings are compared.
Swimming conditions
Readings onlyElevated nutrients
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. Check local advisories before you swim.
Whether Seminole-East 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 Seminole-East Lake
These are the measurements Florida DEP publishes for Seminole-East Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 3.5 ft. Phosphorus 60.5 µg/L. TSI 61.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 3.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 60.5µg/L | Poor 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. | 61 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Seminole-East Lake
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Seminole-East Lake
Compare lakeside cabins, hotels, and vacation rentals near Seminole-East Lake in Seminole County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Seminole-East Lake are listed below.
Top-rated places to stay near Seminole-East Lake
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Fishing Seminole-East Lake
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2024).
Water clarity
Worsening5 years
Phosphorus
Improving-2.55 µg/L/yr5 years
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Seminole-East Lake under Clean Water Act (NPDES) discharge permits.
- Sprague Electronics Ground WatLongwood · 1.7 mi away · NPDES FL0171565
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 Seminole County
Frequently asked questions about Seminole-East Lake
Where is Seminole-East Lake?
- Seminole-East Lake is a lake in Seminole County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Seminole-East Lake?
- Seminole-East Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 3.5 ft visibility. Phosphorus: 60.5 µg/L.
Is Seminole-East Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Seminole-East Lake across LakeQuality
Planning a trip around Canaveral?
Seminole-East Lake is about 36 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.
Best time to visit Canaveral →More lakes in Florida
Other Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
306 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX306 samples · 2020–2025
Monitoring station identifiers (3)
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
Regulated discharger data from EPA ECHO (ICIS-NPDES)