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LakeQuality

Pearl Lake

Orange County, FloridaView mapDirections

Florida DEP publishes the water-quality measurements for Pearl Lake. Here is what has been measured.

Clarity
2.5 ft
Typical for Florida
Secchi · sampled 2025
Phosphorus
19 µg/L
Typical for Florida
Measured by Florida DEP
Water temp
~81°F
Typical for Oct · EPA WQP
Type
Eutrophic
Trophic class
Trend
Worsening
6 years of samples
  • Eutrophic
  • Impaired · pH / acidity

Pearl Lake in Orange County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.5 ft visibility. Phosphorus: 19 µg/L.

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Pearl Lake is a productive, nutrient-rich eutrophic lake in Orange County, Florida. Overall water quality is declining over recent sampling years. Compared to the 319 other monitored lakes in Orange County, Pearl Lake ranks #131 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-01-28. Methodology: how these readings are compared.

Swimming conditions

Readings only

Low algae

Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

Nutrient and algae readings are not a swimming clearance. Pearl Lake is listed impaired under Clean Water Act §303(d) (IR 4C) for pH / acidity. Check local advisories before you swim.

Whether Pearl Lake is safe to swim in today is a call for the Florida Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

Get alerts for Pearl Lake →

Water quality measurements for Pearl Lake

These are the measurements Florida DEP publishes for Pearl Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Very murky, less than 2.5 ft of visibility. Phosphorus 19 µg/L. TSI 55.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2.5ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus19µg/LGood
GoodFairPoor
Chlorophyll-a (algae)No reading

The green pigment in algae — a direct measure of how much algae is in the water.

Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.55Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Pearl Lake

Answers come straight from the public measurements and survey records on this page.

Water Temperature

Pearl Lake typically sits around 81°F at the surface in October. Usually warmest in Sep (about 83°F) and coldest in Feb (about 66°F). These are typical values by month — not a live reading.

Jan
66°
Feb
74°
Mar
75°
Apr
80°
May
Jun
Jul
Aug
83°
Sep
81°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (66°F) to its warmest (83°F).

Typical surface water temperature by month, from 17 field readings (2010–2024) via the EPA Water Quality Portal.

Stays via Stay22

Stays near Pearl Lake

Compare lakeside cabins, hotels, and vacation rentals near Pearl Lake in Orange County, Florida — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Pearl Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Florida’s top lakes →

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Fishing Pearl Lake

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Stable

    6 years

  • Phosphorus

    Worsening

    +1.8 µg/L/yr5 years

See year-by-year chart →

EPA Impairment Status

Pearl Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).

Causes of impairment

pH / acidity

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit FL3009J · Official waterbody report

Nearby Lakes in Orange County

Frequently asked questions about Pearl Lake

Where is Pearl Lake?

Pearl Lake is a lake in Orange County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.

What is the water quality of Pearl Lake?

Pearl Lake in Orange County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.5 ft visibility. Phosphorus: 19 µg/L.

Measurements on this page ↑

Is Pearl Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Pearl Lake is listed impaired under Clean Water Act §303(d) (IR 4C) for pH / acidity. Check local advisories before you swim.

Swimming on this page ↑

What is the water temperature of Pearl Lake?

Pearl Lake typically sits around 81°F at the surface in October, from 17 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.

Temp on this page ↑

Planning a trip around Canaveral?

Pearl Lake is about 34 miles from Canaveral National Seashore. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.

Best time to visit Canaveral →

Where this data comes from

87 measurements from 3 monitoring stations, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Submitting organization not recorded for these samples63 samples · 2020–2025
  • Submitting organization not recorded for these samples24 samples · 2023–2024
Monitoring station identifiers (3)

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database