Lake Thonotasassa Center
Hillsborough County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Lake Thonotasassa Center. Here is what has been measured.
- Hypereutrophic
- Impaired · Algal growth
- Public access
Lake Thonotasassa Center in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.3 ft visibility. Phosphorus: 349 µg/L.
Lake Thonotasassa Center is a highly nutrient-loaded hypereutrophic lake in Hillsborough County, Florida. Water clarity is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 123 other monitored lakes in Hillsborough County, Lake Thonotasassa Center ranks #96 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-07-23. Methodology: how these readings are compared.
What Lake Thonotasassa Center is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyRecreation use not supported
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.
Based on E. coli testing, Lake Thonotasassa Center never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 87 samples across 8 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 Lake Thonotasassa Center 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 Lake Thonotasassa Center
These are the measurements Florida DEP publishes for Lake Thonotasassa Center, 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 1.3 ft of visibility. Phosphorus 349 µg/L. TSI 81.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 349µg/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. | 81 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Lake Thonotasassa Center
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Lake Thonotasassa Center typically sits around 77°F at the surface in October. Summer average is about 86°F. Usually warmest in Jun (about 86°F) and coldest in Jan (about 62°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (62°F) to its warmest (86°F).
Typical surface water temperature by month, from 494 field readings (2010–2025) via the EPA Water Quality Portal. See the full Lake Thonotasassa Center water temperature breakdown →
Recreation & Access
- Baker Creek Public Boat RampPublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Lake Thonotasassa Center
Compare lakeside cabins, hotels, and vacation rentals near Lake Thonotasassa Center in Hillsborough 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 Lake Thonotasassa Center are listed below.
Top-rated places to stay near Lake Thonotasassa Center
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 Lake Thonotasassa Center
Water Quality Trend: Stable
Based on 6 years of monitoring (2020–2025).
Water clarity
Improving6 years
Phosphorus
Worsening+8.56 µg/L/yr6 years
EPA Impairment Status
Lake Thonotasassa Center 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, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL1522B · Official waterbody report
Nearby Lakes in Hillsborough County
Frequently asked questions about Lake Thonotasassa Center
Where is Lake Thonotasassa Center?
- Lake Thonotasassa Center is a lake in Hillsborough County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Lake Thonotasassa Center?
- Lake Thonotasassa Center in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.3 ft visibility. Phosphorus: 349 µg/L.
Is Lake Thonotasassa Center safe to swim in?
- Based on E. coli testing, Lake Thonotasassa Center never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 87 samples across 8 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 Lake Thonotasassa Center 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 Lake Thonotasassa Center?
- Lake Thonotasassa Center typically sits around 77°F at the surface in October, from 494 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Are there boat ramps on Lake Thonotasassa Center?
- Lake Thonotasassa Center has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Baker Creek Public Boat Ramp. Public access is listed as yes.
Can I fish at Lake Thonotasassa Center?
- Lake Thonotasassa Center has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Florida's fish and wildlife agency, so check its current regulations before you go.
Explore Lake Thonotasassa Center across LakeQuality
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Where this data comes from
126 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples126 samples · 2020–2025
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
Named boat-access points from the USGS National Boat Ramps inventory