Willamsctr Lake
Hillsborough County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Willamsctr Lake. Here is what has been measured.
- Mesotrophic
- Impaired · Algal growth
- Limited data
Willamsctr Lake in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 6.2 ft visibility. Phosphorus: 15.5 µg/L.
Willamsctr Lake is a mesotrophic lake in Hillsborough County, Florida. Overall water quality is improving over recent sampling years. Compared to the 123 other monitored lakes in Hillsborough County, Willamsctr Lake ranks #49 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-07-29. Methodology: how these readings are compared.
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.
Nutrient and algae readings are not a swimming clearance. Willamsctr Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, impaired biota (cause unknown), nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Willamsctr 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 Willamsctr Lake
These are the measurements Florida DEP publishes for Willamsctr 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 6.2 ft. Phosphorus 15.5 µg/L. TSI 47.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 6.2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 15.5µg/L | Good 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. | 47 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Willamsctr Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Willamsctr Lake typically sits around 82°F at the surface in October. Summer average is about 88°F. Usually warmest in Jul (about 89°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 (89°F).
Typical surface water temperature by month, from 87 field readings (2011–2025) via the EPA Water Quality Portal. See the full Willamsctr Lake water temperature breakdown →
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Stays near Willamsctr Lake
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Fishing Willamsctr Lake
Water Quality Trend: Improving
Based on 6 years of monitoring (2020–2025).
Water clarity
Improving6 years
Phosphorus
Improving-0.33 µg/L/yr6 years
EPA Impairment Status
Willamsctr 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, Recreation.
Source: EPA ATTAINS assessment unit FL1493D · Official waterbody report
Nearby Lakes in Hillsborough County
Frequently asked questions about Willamsctr Lake
Where is Willamsctr Lake?
- Willamsctr Lake 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 Willamsctr Lake?
- Willamsctr Lake in Hillsborough County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 6.2 ft visibility. Phosphorus: 15.5 µg/L.
Is Willamsctr Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Willamsctr Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, impaired biota (cause unknown), nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Willamsctr Lake?
- Willamsctr Lake typically sits around 82°F at the surface in October, from 87 EPA Water Quality Portal field readings (2011–2025). That is a typical value for the month, not a live reading.
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Where this data comes from
28 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 samples28 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