Sweetwater Creek Lake
Seminole County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Sweetwater Creek Lake. Here is what has been measured.
- Hypereutrophic
- Limited data
Sweetwater Creek Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 106 µg/L.
Sweetwater Creek Lake is a highly nutrient-loaded hypereutrophic lake in Seminole County, Florida. Water clarity is declining over recent sampling years. Compared to the 121 other monitored lakes in Seminole County, Sweetwater Creek Lake ranks #122 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 onlyLimited 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 Creek 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 Sweetwater Creek Lake
These are the measurements Florida DEP publishes for Sweetwater Creek 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 106 µg/L. TSI 71.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 106µg/L | Poor 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. | 71 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Sweetwater Creek Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Sweetwater Creek Lake typically sits around 73°F at the surface in October. Summer average is about 80°F. Usually warmest in Jul (about 82°F) and coldest in Jan (about 66°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (66°F) to its warmest (82°F).
Typical surface water temperature by month, from 64 field readings (2014–2020) via the EPA Water Quality Portal. See the full Sweetwater Creek Lake water temperature breakdown →
Stays via Stay22
Stays near Sweetwater Creek Lake
Compare lakeside cabins, hotels, and vacation rentals near Sweetwater Creek 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 Creek Lake are listed below.
Top-rated places to stay near Sweetwater Creek Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Fishing Sweetwater Creek Lake
Water Quality Trend: Stable
Based on 5 years of monitoring (2020–2024).
Water clarity
Worsening4 years
Phosphorus
Improving-16.75 µg/L/yr5 years
Regulated Pollution Sources Nearby
1 EPA-permitted facility operate within about 5 miles of Sweetwater Creek Lake under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 1 facility has a reported Clean Water Act violation in the past three years.
- Wekiva Hunt Club WrfCasselberry · 0.6 mi away · NPDES FL0036251MajorRecent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Seminole County
Frequently asked questions about Sweetwater Creek Lake
Where is Sweetwater Creek Lake?
- Sweetwater Creek 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 Creek Lake?
- Sweetwater Creek Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Phosphorus: 106 µg/L.
Is Sweetwater Creek Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
What is the water temperature of Sweetwater Creek Lake?
- Sweetwater Creek Lake typically sits around 73°F at the surface in October, from 64 EPA Water Quality Portal field readings (2014–2020). That is a typical value for the month, not a live reading.
Explore Sweetwater Creek Lake across LakeQuality
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Where this data comes from
9 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 samples9 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.
Other records on this page
Regulated discharger data from EPA ECHO (ICIS-NPDES)