D

Lake Rowena

Orange County, FloridaEutrophic

Lake Rowena is a productive, nutrient-rich eutrophic lake in Orange County, Florida. Water quality is graded D based on 2 sampling years through 2025. Compared to the 531 other monitored lakes in Orange County, Lake Rowena ranks #410 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-02-26. 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 3 ft of visibility. Phosphorus level: 33.5 µg/L. Trophic State Index: 58.

Metric	Value	Grade
Water Clarity (Secchi Depth)	3 ft	F
Phosphorus	33.5 µg/L	C
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	58	Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #410 of 532 lakes in Orange County

Cleaner Lakes Within 30 Miles

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

See full comparison →

Nearby Lakes in Orange County

Orange-Rowena Lake

Lake Estelle East

Orange-Estelle East Lake

More Florida Lake Rankings

Cleanest lakes in Florida

Top 25 by overall water quality score

Best swimming lakes in Florida

Grade A/B + low algae filter

Family fishing lakes in Florida

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

Indian River County · Clarity: 2.3 ft

Putnam-Suggs Lake

Putnam County · Clarity: 2 ft

Alachua County · Clarity: 3.3 ft

Sarasota-Lake-G

Sarasota County · Clarity: 3.8 ft

Megginnis Arm Off Crowder Landing Lake

Leon County · Clarity: 1 ft

Eutrophic Lakes in Florida

Flagler-Emerald Lake Eastern Lake Outlet Seminole-Secret Lake Ftt Lake

Lake Size & Watershed

Watershed (drainage) area

5 sq mi

Surface area

47 acres

Mean depth (est.)

7.5 ft

Shoreline

1.3 mi

Elevation

92 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: 2025-02-26

Monitoring stations: 6

Where to stay near Lake Rowena

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