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LakeQuality

Seminole-Orienta East Lake

Seminole County, FloridaView mapDirections

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

Clarity
2.9 ft
Typical for Florida
Secchi · sampled 2023
Phosphorus
30 µg/L
Typical for Florida
Measured by Florida DEP
Water temp
~78°F
Typical for Oct · EPA WQP
Trend
Improving
5 years of samples
  • Impaired · Nutrients (phosphorus, nitrogen)
  • Limited data

Seminole-Orienta East Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.9 ft visibility. Phosphorus: 30 µg/L.

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Seminole-Orienta East Lake is a lake in Seminole County, Florida. Overall water quality is improving over recent sampling years.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-08-24. Methodology: how these readings are compared.

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Seminole-Orienta East Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Seminole-Orienta East 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.

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Water quality measurements for Seminole-Orienta East Lake

These are the measurements Florida DEP publishes for Seminole-Orienta East 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 2.9 ft of visibility. Phosphorus 30 µg/L. TSI 57.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2.9ftMeasured, not scored

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

Total phosphorus30µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

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.57Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Seminole-Orienta East Lake

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

Water Temperature

Seminole-Orienta East Lake typically sits around 78°F at the surface in October. Summer average is about 86°F. Usually warmest in Jul (about 86°F) and coldest in Jan (about 61°F). These are typical values by month — not a live reading.

61°
Jan
Feb
Mar
77°
Apr
May
Jun
86°
Jul
Aug
Sep
78°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (61°F) to its warmest (86°F).

Typical surface water temperature by month, from 22 field readings (2010–2017) via the EPA Water Quality Portal. See the full Seminole-Orienta East Lake water temperature breakdown →

Stays via Stay22

Stays near Seminole-Orienta East Lake

Compare lakeside cabins, hotels, and vacation rentals near Seminole-Orienta East Lake in Seminole 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 Seminole-Orienta East 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 Seminole-Orienta East Lake

Based on 5 years of monitoring (2020–2024).

  • Water clarity

    Improving

    4 years

  • Phosphorus

    Improving

    -6.35 µg/L/yr5 years

See year-by-year chart →

EPA Impairment Status

Seminole-Orienta East Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life, Recreation.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit FL2998C · Official waterbody report

Nearby Lakes in Seminole County

Frequently asked questions about Seminole-Orienta East Lake

Where is Seminole-Orienta East Lake?

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

What is the water quality of Seminole-Orienta East Lake?

Seminole-Orienta East Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.9 ft visibility. Phosphorus: 30 µg/L.

Measurements on this page ↑

Is Seminole-Orienta East Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Seminole-Orienta East Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Swimming on this page ↑

What is the water temperature of Seminole-Orienta East Lake?

Seminole-Orienta East Lake typically sits around 78°F at the surface in October, from 22 EPA Water Quality Portal field readings (2010–2017). That is a typical value for the month, not a live reading.

Temp on this page ↑

Planning a trip around Canaveral?

Seminole-Orienta East Lake is about 38 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

32 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • FLORIDA LAKEWATCH21FLKWAT_WQX32 samples · 2020–2023
Monitoring station identifiers (1)

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