Orange-Hart Lake
Orange County, FloridaView mapDirections
No nutrient or algae sampling on record from Florida DEP for this lake.
- Impaired · Mercury
- Limited data
Orange-Hart Lake in Orange County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Orange-Hart Lake is a lake in Orange County, Florida. Water clarity is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2021-04-30. Methodology: how these readings are compared.
Swimming conditions
No readingBacteria tested: low
Based on E. coli testing, Orange-Hart Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 28 samples across 7 seasons.
This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Florida’s current beach and health-department advisories before swimming.
Whether Orange-Hart 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 Orange-Hart Lake
These are the measurements Florida DEP publishes for Orange-Hart Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data.
Ask about Orange-Hart Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Orange-Hart Lake typically sits around 79°F at the surface in October. Summer average is about 86°F. Usually warmest in Jul (about 87°F) and coldest in Jan (about 59°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (59°F) to its warmest (87°F).
Typical surface water temperature by month, from 58 field readings (2010–2024) via the EPA Water Quality Portal. See the full Orange-Hart Lake water temperature breakdown →
Stays via Stay22
Stays near Orange-Hart Lake
Compare lakeside cabins, hotels, and vacation rentals near Orange-Hart 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 Orange-Hart 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 Orange-Hart Lake
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2024).
Water clarity
Improving5 years
Phosphorus
Worsening+0.8 µg/L/yr5 years
EPA Impairment Status
Orange-Hart Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL3171 · Official waterbody report
Nearby Lakes in Orange County
Frequently asked questions about Orange-Hart Lake
Where is Orange-Hart Lake?
- Orange-Hart 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 Orange-Hart Lake?
- Orange-Hart Lake in Orange County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Is Orange-Hart Lake safe to swim in?
- Based on E. coli testing, Orange-Hart Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 28 samples across 7 seasons. That is a historical summary of past bacteria testing, not a current reading and not a swimming clearance. Bacteria levels can spike quickly after heavy rain, so whether Orange-Hart Lake is safe to swim in today is a call for Florida's water agency and the county health department; check their current beach advisories before you swim.
What is the water temperature of Orange-Hart Lake?
- Orange-Hart Lake typically sits around 79°F at the surface in October, from 58 EPA Water Quality Portal field readings (2010–2024). That is a typical value for the month, not a live reading.
Explore Orange-Hart Lake across LakeQuality
Planning a trip around Canaveral?
Orange-Hart Lake is about 40 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
Where this data comes from
18 measurements from 3 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX18 samples · 2020–2021
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