What is the water quality grade for Alachua-Lochloosa Lake?

Alachua-Lochloosa Lake in Alachua County, Florida received a water quality grade of D (Poor). Water clarity: 2 ft visibility. Phosphorus: 77 µg/L.

Is Alachua-Lochloosa Lake safe to swim in?

Swimming not recommended, poor water quality with high algae risk. Alachua-Lochloosa Lake has an overall water quality grade of D. Always check local health department advisories before swimming.

Alachua-Lochloosa Lake

Alachua County, FloridaEutrophic

Alachua-Lochloosa Lake is a productive, nutrient-rich eutrophic lake in Alachua County, Florida. Water quality is graded D based on 2 sampling years through 2025. Compared to the 101 other monitored lakes in Alachua County, Alachua-Lochloosa Lake ranks #65 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2025-03-25. 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 ft of visibility. Phosphorus level: 77 µg/L. Trophic State Index: 67.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2 ft	F
Phosphorus	77 µg/L	D
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	67	Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #65 of 102 lakes in Alachua County

Cleaner Lakes Within 30 Miles

Alachua-Lochloosa Lake holds Grade D. 5 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Alachua County

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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

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

Lake Size & Watershed

Watershed (drainage) area

93 sq mi

Surface area

5,439 acres

Mean depth (est.)

17.4 ft

Shoreline

13.8 mi

Elevation

66 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: 2025-03-25

Monitoring stations: 4

Where to stay near Alachua-Lochloosa Lake

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