Polk-Tiger Lake
Polk County, FloridaView mapDirections
No nutrient or algae sampling on record from Florida DEP for this lake.
- Impaired · Mercury
- Limited data
Polk-Tiger Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Polk-Tiger Lake is a lake in Polk County, Florida. Water clarity is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2024-04-14. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Polk-Tiger Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Polk-Tiger 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 Polk-Tiger Lake
These are the measurements Florida DEP publishes for Polk-Tiger 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.
Ask about Polk-Tiger Lake
Answers come straight from the public measurements and survey records on this page.
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Fishing Polk-Tiger Lake
Water Quality Trend: Stable
Based on 6 years of monitoring (2020–2025).
Water clarity
Worsening6 years
Phosphorus
Improving-15.4 µg/L/yr6 years
EPA Impairment Status
Polk-Tiger 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 Polk-Tiger Lake
Where is Polk-Tiger Lake?
- Polk-Tiger 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 Polk-Tiger Lake?
- Polk-Tiger Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported.
Is Polk-Tiger Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Polk-Tiger Lake is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
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Where this data comes from
16 measurements from 4 monitoring stations, 2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX16 samples · 2024
Monitoring station identifiers (4)
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