Seminole-Orienta North Lake
Seminole County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Seminole-Orienta North Lake. Here is what has been measured.
- Impaired · Nutrients (phosphorus, nitrogen)
- Limited data
Seminole-Orienta North Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 4.8 ft visibility. Phosphorus: 21 µg/L.
Seminole-Orienta North Lake is a lake in Seminole County, Florida. Overall water quality is declining 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 readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Seminole-Orienta North 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 North 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.
Water quality measurements for Seminole-Orienta North Lake
These are the measurements Florida DEP publishes for Seminole-Orienta North Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.8 ft. Phosphorus 21 µg/L. TSI 51.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 21µg/L | Measured, 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. | 51 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Seminole-Orienta North Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Seminole-Orienta North 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.
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 North Lake water temperature breakdown →
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Stays near Seminole-Orienta North Lake
Compare lakeside cabins, hotels, and vacation rentals near Seminole-Orienta North 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.
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Fishing Seminole-Orienta North Lake
Water Quality Trend: Worsening
Based on 6 years of monitoring (2020–2025).
Water clarity
Worsening6 years
Phosphorus
Stable+0.57 µg/L/yr6 years
EPA Impairment Status
Seminole-Orienta North Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
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 North Lake
Where is Seminole-Orienta North Lake?
- Seminole-Orienta North 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 North Lake?
- Seminole-Orienta North Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 4.8 ft visibility. Phosphorus: 21 µg/L.
Is Seminole-Orienta North Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Seminole-Orienta North Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Seminole-Orienta North Lake?
- Seminole-Orienta North 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.
Explore Seminole-Orienta North Lake across LakeQuality
Planning a trip around Canaveral?
Seminole-Orienta North 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 →More lakes in Florida
Other Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
31 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX31 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