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LakeQuality

Sweetwater Cove Lake

Seminole County, FloridaView mapDirections

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

Phosphorus
145.5 µg/L
More phosphorus than most
Measured by Florida DEP
Water temp
~75°F
Typical for Oct · EPA WQP
Type
Hypereutrophic
Trophic class
  • Hypereutrophic
  • Limited data

Sweetwater Cove Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 145.5 µg/L.

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Sweetwater Cove Lake is a highly nutrient-loaded hypereutrophic lake in Seminole County, Florida. Compared to the 121 other monitored lakes in Seminole County, Sweetwater Cove Lake ranks #120 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2020-12-07. Methodology: how these readings are compared.

Swimming conditions

Readings only

Limited data

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. Check local advisories before you swim.

Whether Sweetwater Cove 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 Sweetwater Cove Lake

These are the measurements Florida DEP publishes for Sweetwater Cove 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. Phosphorus 145.5 µg/L. TSI 76.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)No reading

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

Total phosphorus146µg/LPoor
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.76Hypereutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Sweetwater Cove Lake

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

Water Temperature

Sweetwater Cove Lake typically sits around 75°F at the surface in October. Summer average is about 87°F. Usually warmest in Jul (about 89°F) and coldest in Jan (about 64°F). These are typical values by month — not a live reading.

64°
Jan
69°
Feb
73°
Mar
79°
Apr
83°
May
85°
Jun
89°
Jul
86°
Aug
85°
Sep
75°
Oct
73°
Nov
67°
Dec

Column height runs from this lake’s coldest month (64°F) to its warmest (89°F).

Typical surface water temperature by month, from 66 field readings (2014–2020) via the EPA Water Quality Portal. See the full Sweetwater Cove Lake water temperature breakdown →

Stays via Stay22

Stays near Sweetwater Cove Lake

Compare lakeside cabins, hotels, and vacation rentals near Sweetwater Cove 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Sweetwater Cove Lake are listed below.

Top-rated places to stay near Sweetwater Cove 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 Sweetwater Cove Lake

Nearby Lakes in Seminole County

Frequently asked questions about Sweetwater Cove Lake

Where is Sweetwater Cove Lake?

Sweetwater Cove 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 Sweetwater Cove Lake?

Sweetwater Cove Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 145.5 µg/L.

Measurements on this page ↑

Is Sweetwater Cove Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

What is the water temperature of Sweetwater Cove Lake?

Sweetwater Cove Lake typically sits around 75°F at the surface in October, from 66 EPA Water Quality Portal field readings (2014–2020). That is a typical value for the month, not a live reading.

Temp on this page ↑

Where this data comes from

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

Collected and reported by

  • Submitting organization not recorded for these samples10 samples · 2020
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.