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LakeQuality

Lake Tugalo

Oconee County, South CarolinaView mapDirections

SCDHEC publishes the water-quality measurements for Lake Tugalo. Here is what has been measured.

Clarity
7.9 ft
Clearer than most
Secchi · sampled 2022
Phosphorus
20 µg/L
Less phosphorus than most
Measured by SCDHEC
Chlorophyll-a
3.9 µg/L
Less algae than most
Measured by SCDHEC
Type
Mesotrophic
Trophic class
Trend
Stable
13 years of samples
  • Mesotrophic

Lake Tugalo in Oconee County, South Carolina has water-quality measurements published by SCDHEC, shown here as reported. Water clarity: 7.9 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 3.9 µg/L.

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Lake Tugalo is a mesotrophic lake in Oconee County, South Carolina. Phosphorus level is improving over recent sampling years. Compared to the 8 other monitored lakes in Oconee County, Lake Tugalo ranks #5 for water quality.

Source: EPA Water Quality Portal sampling records, SCDES, last sampled 2022-06-29. Methodology: how these readings are compared.

Swimming conditions

Readings only

Moderate algae

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. Check local advisories before you swim.

Whether Lake Tugalo is safe to swim in today is a call for the South Carolina Department of Health and Environmental Control and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Lake Tugalo

These are the measurements SCDHEC publishes for Lake Tugalo, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

Moderate clarity, visible to about 7.9 ft. Phosphorus 20 µg/L. Chlorophyll-a 3.9 µg/L. TSI 46.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)7.9ftMeasured, not scored

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

Total phosphorus20µg/LFair
GoodFairPoor
Chlorophyll-a (algae)3.9µg/LGood
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.46Mesotrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Moderate nutrients, good water quality

Ask about Lake Tugalo

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

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Stays near Lake Tugalo

Compare lakeside cabins, hotels, and vacation rentals near Lake Tugalo in Oconee County, South Carolina — 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.

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Fishing Lake Tugalo

Based on 13 years of monitoring (2012–2024).

  • Water clarity

    Stable

    11 years

  • Phosphorus

    Improving

    -1.35 µg/L/yr2 years

  • Chlorophyll-a

    Worsening

    +0.12 µg/L/yr13 years

See year-by-year chart →

Nearby Lakes in Oconee County

Frequently asked questions about Lake Tugalo

Where is Lake Tugalo?

Lake Tugalo is a lake in Oconee County, South Carolina. Its water-quality measurements are published by SCDHEC and shown on this page as reported.

What is the water quality of Lake Tugalo?

Lake Tugalo in Oconee County, South Carolina has water-quality measurements published by SCDHEC, shown here as reported. Water clarity: 7.9 ft visibility. Phosphorus: 20 µg/L. Chlorophyll-a (algae): 3.9 µg/L.

Measurements on this page ↑

Is Lake Tugalo safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

Other Lakes in South Carolina

Mesotrophic Lakes in South Carolina

Where this data comes from

218 measurements from 2 monitoring stations, 2013–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Georgia DNR Environmental Protection Division21GAEPD_WQX218 samples · 2013–2022
Monitoring station identifiers (2)

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.