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LakeQuality

Polk-Scott Lake

Polk County, FloridaView mapDirections

Florida DEP publishes the water-quality measurements for Polk-Scott Lake. Here is what has been measured.

Clarity
2 ft
Murkier than most
Secchi · sampled 2021
Phosphorus
102 µg/L
More phosphorus than most
Measured by Florida DEP
Type
Eutrophic
Trophic class
Trend
Stable
4 years of samples
  • Eutrophic
  • Impaired · Algal growth

Polk-Scott Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 102 µg/L.

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Polk-Scott Lake is a productive, nutrient-rich eutrophic lake in Polk County, Florida. Water clarity is declining over recent sampling years. Compared to the 176 other monitored lakes in Polk County, Polk-Scott Lake ranks #153 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2021-11-09. Methodology: how these readings are compared.

Swimming conditions

Readings only

Recreation 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. Polk-Scott Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Polk-Scott 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.

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Water quality measurements for Polk-Scott Lake

These are the measurements Florida DEP publishes for Polk-Scott 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 2 ft of visibility. Phosphorus 102 µg/L. TSI 69.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus102µg/LPoor
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.69Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Polk-Scott Lake

Answers come straight from the public measurements and survey records on this page.

Stays via Stay22

Stays near Polk-Scott Lake

Compare lakeside cabins, hotels, and vacation rentals near Polk-Scott 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 Polk-Scott Lake are listed below.

Top-rated places to stay near Polk-Scott Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Fishing Polk-Scott Lake

Based on 4 years of monitoring (2020–2024).

  • Water clarity

    Worsening

    4 years

  • Phosphorus

    Improving

    -5.2 µg/L/yr4 years

See year-by-year chart →

EPA Impairment Status

Polk-Scott Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Algal growthNutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life, Recreation.

Source: EPA ATTAINS assessment unit FL1597A · Official waterbody report

Nearby Lakes in Polk County

Frequently asked questions about Polk-Scott Lake

Where is Polk-Scott Lake?

Polk-Scott 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-Scott Lake?

Polk-Scott Lake in Polk County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 102 µg/L.

Measurements on this page ↑

Is Polk-Scott Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Polk-Scott Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Swimming on this page ↑

Where this data comes from

51 measurements from 3 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • FLORIDA LAKEWATCH21FLKWAT_WQX51 samples · 2020–2021
Monitoring station identifiers (3)

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