D

Lake Glona

Lake County, FloridaEutrophic

Lake Glona is a productive, nutrient-rich eutrophic lake in Lake County, Florida. Water quality is graded D based on 2 sampling years through 2025. Compared to the 316 other monitored lakes in Lake County, Lake Glona ranks #243 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-08-11. 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 1.6 ft of visibility. Phosphorus level: 50.7 µg/L. Trophic State Index: 65.

Metric	Value	Grade
Water Clarity (Secchi Depth)	1.6 ft	F
Phosphorus	50.7 µg/L	C
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	65	Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #243 of 317 lakes in Lake County

Cleaner Lakes Within 30 Miles

Lake Glona holds Grade D. 5 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Lake County

Llnellienwsh Lake

Llnelliesesh Lake

Nellienesh Lake

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

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Other Grade D Lakes in Florida

Flagler-Emerald Lake

Flagler County · Clarity: 1.8 ft

Indian River County · Clarity: 2.3 ft

Lake Orlando East

Orange County · Clarity: 2 ft

Orange County · Clarity: 3 ft

Orange County · Clarity: 2 ft

Putnam-Suggs Lake

Putnam County · Clarity: 2 ft

Eutrophic Lakes in Florida

Lake Lancaster West Flagler-Emerald Lake Eastern Lake Outlet Seminole-Secret Lake

Lake Size & Watershed

Watershed (drainage) area

1 sq mi

Surface area

126 acres

Mean depth (est.)

11.8 ft

Shoreline

2 mi

Elevation

98 ft

Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.

Data Sources

Water quality data from the EPA Water Quality Portal

Lake size & watershed from HydroLAKES (HydroSHEDS)

Grading methodology based on Metropolitan Council standards

Most recent sample: 2025-08-11

Monitoring stations: 1

Where to stay near Lake Glona

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