Tgrlke Lake
Polk County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Tgrlke Lake. Here is what has been measured.
- Hypereutrophic
- Impaired · Mercury
- Limited data
Tgrlke Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.1 ft visibility. Phosphorus: 170 µg/L.
Tgrlke Lake is a highly nutrient-loaded hypereutrophic lake in Polk County, Florida. Water clarity is declining over recent sampling years. Compared to the 176 other monitored lakes in Polk County, Tgrlke Lake ranks #169 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-06-18. 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. Tgrlke Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Tgrlke 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 Tgrlke Lake
These are the measurements Florida DEP publishes for Tgrlke Lake, 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 1.1 ft of visibility. Phosphorus 170 µg/L. TSI 77.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 1.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 170µg/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. | 77 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Tgrlke Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Tgrlke Lake typically sits around 78°F at the surface in October. Summer average is about 86°F. Usually warmest in Jun (about 86°F) and coldest in Jan (about 67°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (67°F) to its warmest (86°F).
Typical surface water temperature by month, from 48 field readings (2021–2025) via the EPA Water Quality Portal. See the full Tgrlke Lake water temperature breakdown →
Stays via Stay22
Stays near Tgrlke Lake
Compare lakeside cabins, hotels, and vacation rentals near Tgrlke Lake in Polk 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 Tgrlke Lake are listed below.
Top-rated places to stay near Tgrlke Lake
Prices for Oct 16–18, 4 adults. Change dates on the map below.
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Planning a whole trip? See where to stay at Florida’s top lakes →
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Fishing Tgrlke Lake
Water Quality Trend: Stable
Based on 6 years of monitoring (2020–2025).
Water clarity
Worsening6 years
Phosphorus
Improving-13.04 µg/L/yr6 years
EPA Impairment Status
Tgrlke 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, Recreation.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL1573A · Official waterbody report
Nearby Lakes in Polk County
Frequently asked questions about Tgrlke Lake
Where is Tgrlke Lake?
- Tgrlke Lake is a lake in Polk County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.
What is the water quality of Tgrlke Lake?
- Tgrlke Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.1 ft visibility. Phosphorus: 170 µg/L.
Is Tgrlke Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Tgrlke Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
What is the water temperature of Tgrlke Lake?
- Tgrlke Lake typically sits around 78°F at the surface in October, from 48 EPA Water Quality Portal field readings (2021–2025). That is a typical value for the month, not a live reading.
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Where this data comes from
34 measurements from 1 monitoring station, 2021–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Submitting organization not recorded for these samples34 samples · 2021–2025
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