F

Lake Rianhard

Osceola County, FloridaHypereutrophic

Lake Rianhard is a highly nutrient-loaded hypereutrophic lake in Osceola County, Florida. Water quality is graded F based on 2 sampling years through 2020. Compared to the 93 other monitored lakes in Osceola County, Lake Rianhard ranks #84 for water quality.

Source: EPA Water Quality Portal sampling records, Florida DNR, last sampled 2020-02-13. Grade methodology: LakeGrade methodology.

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Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

Very murky, less than 2.8 ft of visibility. Phosphorus level: 1685 µg/L. Trophic State Index: 87.

Metric	Value	Grade
Water Clarity (Secchi Depth)	2.8 ft	F
Phosphorus	1685 µg/L	F
Chlorophyll-a (Algae)	No data
Trophic State Index (TSI)	87	Hypereutrophic

Very high nutrients, dense algae, poor clarity

Location

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County Ranking

Ranked #84 of 94 lakes in Osceola County

Cleaner Lakes Within 30 Miles

Lake Rianhard holds Grade F. 4 nearby lakes hold higher grades.

See full comparison →

Nearby Lakes in Osceola County

Lake Rianhard East of Center

Osceola-Cecile Lake

Lkbryanctr 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 F Lakes in Florida

Polk-Little Bass Lake

Polk County · Clarity: 1.3 ft

Polk-Big Bass Lake

Polk County · Clarity: 1 ft

Alachua-Wauberg Lake

Alachua County · Clarity: 2.4 ft

Hillsborough County · Clarity: 1.3 ft

Volusia Lake George @ N of Center

Volusia County · Clarity: 2 ft

Brevard County · Clarity: 1.6 ft

Hypereutrophic Lakes in Florida

Polk-Little Bass Lake Alicetst Lake Polk-Big Bass Lake Lake Roberta

Data Sources

Water quality data from the EPA Water Quality Portal

Grading methodology based on Metropolitan Council standards

Most recent sample: 2020-02-13

Monitoring stations: 1

Where to stay near Lake Rianhard

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