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D

East Lake

Seminole County, FloridaEutrophic

East Lake is a productive, nutrient-rich eutrophic lake in Seminole County, Florida. Water quality is graded D based on 2 sampling years through 2025. Compared to the 167 other monitored lakes in Seminole County, East Lake ranks #149 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-05-19. Grade methodology: LakeGrade methodology.

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Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Very murky, less than 2.1 ft of visibility. Phosphorus level: 44 µg/L. Trophic State Index: 62.

MetricValueGrade
Water Clarity (Secchi Depth)2.1 ftF
Phosphorus44 µg/LC
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)62Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #149 of 168 lakes in Seminole County

Cleaner Lakes Within 30 Miles

East Lake holds Grade D. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Seminole County

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Seminole-Wildmere Lake
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More Florida Lake Rankings

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Top 25 by overall water quality score

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Grade A/B + low algae filter

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Panfish-rich, public access

All Florida lakes

Full state directory

Other Grade D Lakes in Florida

Flagler-Emerald Lake

Flagler County · Clarity: 1.8 ft

Ftt Lake

Indian River County · Clarity: 2.3 ft

Lake Orlando East

Orange County · Clarity: 2 ft

Lake Rowena

Orange County · Clarity: 3 ft

Lake G

Orange County · Clarity: 2 ft

Putnam-Suggs Lake

Putnam County · Clarity: 2 ft

Eutrophic Lakes in Florida

Lake Lancaster WestFlagler-Emerald LakeEastern Lake OutletFtt Lake

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-05-19

Monitoring stations: 1

Where to stay near East Lake

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