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LakeQuality

Franceswsh Lake

Lake County, FloridaView mapDirections

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

Clarity
9.8 ft
Clearer than most
Secchi · sampled 2023
Phosphorus
40 µg/L
Typical for Florida
Measured by Florida DEP
Water temp
~77°F
Typical for Oct · EPA WQP
Type
Eutrophic
Trophic class
Trend
Stable
6 years of samples
  • Eutrophic

Franceswsh Lake in Lake County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 9.8 ft visibility. Phosphorus: 40 µg/L.

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Franceswsh Lake is a productive, nutrient-rich eutrophic lake in Lake County, Florida. Compared to the 127 other monitored lakes in Lake County, Franceswsh Lake ranks #47 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-02-23. Methodology: how these readings are compared.

What Franceswsh Lake is good for

From access and monitoring records, not editorial picks.

  • Clear water9.8 ft of visibility

Swimming conditions

Readings only

Bacteria tested: low

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 · 31 samples, 5 seasons

Based on E. coli testing, Franceswsh Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 31 samples across 5 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 Franceswsh 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.

Get alerts for Franceswsh Lake →

Water quality measurements for Franceswsh Lake

These are the measurements Florida DEP publishes for Franceswsh Lake, 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 9.8 ft. Phosphorus 40 µg/L. TSI 51.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)9.8ftMeasured, not scored

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

Total phosphorus40µg/LGood
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.51Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Franceswsh Lake

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

Water Temperature

Franceswsh Lake typically sits around 77°F at the surface in October. Summer average is about 85°F. Usually warmest in Jul (about 85°F) and coldest in Jan (about 60°F). These are typical values by month — not a live reading.

60°
Jan
67°
Feb
69°
Mar
74°
Apr
82°
May
Jun
85°
Jul
Aug
81°
Sep
77°
Oct
67°
Nov
67°
Dec

Column height runs from this lake’s coldest month (60°F) to its warmest (85°F).

Typical surface water temperature by month, from 33 field readings (2019–2023) via the EPA Water Quality Portal. See the full Franceswsh Lake water temperature breakdown →

Stays via Stay22

Stays near Franceswsh Lake

Compare lakeside cabins, hotels, and vacation rentals near Franceswsh 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.

Top-rated places to stay near Franceswsh 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 →

Follow Franceswsh Lake’s readings

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Fishing Franceswsh Lake

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

  • Water clarity

    Stable

    6 years

  • Phosphorus

    Stable

    +0.95 µg/L/yr6 years

See year-by-year chart →

Nearby Lakes in Lake County

Frequently asked questions about Franceswsh Lake

Where is Franceswsh Lake?

Franceswsh Lake is a lake in Lake County, Florida. Its water-quality measurements are published by Florida DEP and shown on this page as reported.

What is the water quality of Franceswsh Lake?

Franceswsh Lake in Lake County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 9.8 ft visibility. Phosphorus: 40 µg/L.

Measurements on this page ↑

Is Franceswsh Lake safe to swim in?

Based on E. coli testing, Franceswsh Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 31 samples across 5 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 Franceswsh 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 Franceswsh Lake?

Franceswsh Lake typically sits around 77°F at the surface in October, from 33 EPA Water Quality Portal field readings (2019–2023). That is a typical value for the month, not a live reading.

Temp on this page ↑

Where this data comes from

60 measurements from 1 monitoring station, 2020–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Submitting organization not recorded for these samples60 samples · 2020–2023
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.