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LakeQuality

Trout Lk Eus Lake

Lake County, FloridaView mapDirections

This is the name Florida DEP records for this water. It can describe one sampling location rather than the water as a whole.

Florida DEP publishes the water-quality measurements for Trout Lk Eus Lake. Here is what has been measured.

Clarity
1.8 ft
Murkier than most
Secchi · sampled 2025
Phosphorus
108.5 µg/L
More phosphorus than most
Measured by Florida DEP
Water temp
~75°F
Typical for Oct · EPA WQP
Type
Hypereutrophic
Trophic class
Trend
Stable
6 years of samples
  • Hypereutrophic
  • Impaired · Algal growth

Trout Lk Eus Lake in Lake County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.8 ft visibility. Phosphorus: 108.5 µg/L.

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Trout Lk Eus Lake is a highly nutrient-loaded hypereutrophic lake in Lake County, Florida. Compared to the 127 other monitored lakes in Lake County, Trout Lk Eus Lake ranks #118 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-08-27. 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.

Bacteria testing record
from E. coli testing · 84 samples, 8 seasons

Based on E. coli testing, Trout Lk Eus Lake frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 13.1% of 84 samples across 8 seasons.

This is a historical summary of past testing, not a current condition — bacteria levels change quickly, especially after rain. Always check Florida’s current beach and health-department advisories before swimming.

Whether Trout Lk Eus 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 Trout Lk Eus Lake

These are the measurements Florida DEP publishes for Trout Lk Eus 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 1.8 ft of visibility. Phosphorus 108.5 µg/L. TSI 70.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)1.8ftMeasured, not scored

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

Total phosphorus109µg/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.70Hypereutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Trout Lk Eus Lake

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

Water Temperature

Trout Lk Eus Lake typically sits around 75°F at the surface in October. Summer average is about 86°F. Usually warmest in Jun (about 86°F) and coldest in Jan (about 61°F). These are typical values by month — not a live reading.

61°
Jan
66°
Feb
72°
Mar
76°
Apr
81°
May
86°
Jun
86°
Jul
86°
Aug
81°
Sep
75°
Oct
68°
Nov
64°
Dec

Column height runs from this lake’s coldest month (61°F) to its warmest (86°F).

Typical surface water temperature by month, from 108 field readings (2014–2025) via the EPA Water Quality Portal. See the full Trout Lk Eus Lake water temperature breakdown →

Stays via Stay22

Stays near Trout Lk Eus Lake

Compare lakeside cabins, hotels, and vacation rentals near Trout Lk Eus Lake in Lake 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 Trout Lk Eus Lake are listed below.

Top-rated places to stay near Trout Lk Eus Lake

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

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Florida’s top lakes →

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Fishing Trout Lk Eus Lake

Based on 6 years of monitoring (2020–2025).

  • Water clarity

    Stable

    6 years

  • Phosphorus

    Stable

    +0.55 µg/L/yr6 years

See year-by-year chart →

EPA Impairment Status

Trout Lk Eus 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 growthImpaired biota (cause unknown)Nutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life, Recreation.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit FL2819A · Official waterbody report

Nearby Lakes in Lake County

Frequently asked questions about Trout Lk Eus Lake

Where is Trout Lk Eus Lake?

Trout Lk Eus Lake is in Lake County, Florida. This is the name Florida DEP records for this water. It can describe one sampling location rather than the water as a whole. Its water-quality measurements are published by Florida DEP and shown on this page as reported.

What is the water quality of Trout Lk Eus Lake?

Trout Lk Eus Lake in Lake County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 1.8 ft visibility. Phosphorus: 108.5 µg/L.

Measurements on this page ↑

Is Trout Lk Eus Lake safe to swim in?

Based on E. coli testing, Trout Lk Eus Lake frequently exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 13.1% of 84 samples across 8 seasons. That is a historical summary of past bacteria testing, not a current reading and not a swimming clearance. Bacteria levels can spike quickly after heavy rain, so whether Trout Lk Eus Lake is safe to swim in today is a call for Florida's water agency and the county health department; check their current beach advisories before you swim.

Swimming on this page ↑

What is the water temperature of Trout Lk Eus Lake?

Trout Lk Eus Lake typically sits around 75°F at the surface in October, from 108 EPA Water Quality Portal field readings (2014–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

Where this data comes from

121 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 samples121 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