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LakeQuality

Eustis Se Sh Lake

D
Grade D — Nutrient-rich
Nutrient-rich · #124 of 128 lakes in the county · 2.6 ft clear · Eutrophic
Limited DataEutrophic

Eustis Se Sh Lake in Lake County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 2.6 ft visibility. Phosphorus: 96.4 µg/L.

Clarity
2.6 ft
Type
Eutrophic
Trend
Stable

Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Eustis Se Sh Lake

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Eustis Se Sh Lake is a productive, nutrient-rich eutrophic lake in Lake County, Florida. Water quality is graded D based on 1 sampling years through 2023. Water clarity is improving over recent sampling years. Compared to the 127 other monitored lakes in Lake County, Eustis Se Sh Lake ranks #124 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2023-10-24. Grade methodology: LakeQuality methodology.

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Swimming Safety

Grade only

Bacteria A

Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.

A
Bacteria swim-safety grade: A
from E. coli testing · 7 samples, 3 seasons

Based on E. coli testing, Eustis Se Sh Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 7 samples across 3 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.

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Water Quality Grade: D (Nutrient-rich)

Very murky, less than 2.6 ft of visibility. Phosphorus level: 96.4 µg/L. Trophic State Index: 67.

MetricValueGrade
Water Clarity (Secchi Depth)2.6 ftNot graded
Phosphorus96.4 µg/LPoor
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)67Eutrophic

High nutrients, frequent algae, reduced clarity

Where to stay near Eustis Se Sh Lake

Compare lakeside cabins, hotels, and vacation rentals near Eustis Se Sh 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 grade measures nutrients and algae, not lodging — cabins and rentals around Eustis Se Sh Lake are listed below.

Top-rated places to stay near Eustis Se Sh Lake

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

Fishing Eustis Se Sh Lake

Based on 5 years of monitoring data (2020-2025).

MetricTrendChange/YearYears
Water Clarity Improving+4.251 m/yr4
Phosphorus Declining+13.04 µg/L/yr5
See year-by-year chart →

EPA Impairment Status

Eustis Se Sh 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)Oxygen depletion (low DO)

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

Source: EPA ATTAINS assessment unit FL2831A · Official waterbody report · Matched by proximity (2.16 km)

County Ranking

Ranked #124 of 128 lakes in Lake County

Nearby Lakes With Higher Grades

Eustis Se Sh Lake holds Grade D. One nearby lake has a higher nutrient-and-algae grade — useful for a swim day, not a reason to skip lodging here.

Nearby Lakes in Lake County

Frequently asked questions about Eustis Se Sh Lake

Where is Eustis Se Sh Lake?

Eustis Se Sh Lake is a lake in Lake County, Florida. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Eustis Se Sh Lake?

Eustis Se Sh Lake in Lake County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 2.6 ft visibility. Phosphorus: 96.4 µg/L.

Is Eustis Se Sh Lake safe to swim in?

Based on E. coli testing, Eustis Se Sh Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 7 samples across 3 seasons. That works out to a bacteria swim-safety grade of A — a historical summary of past testing, not a current reading. Eustis Se Sh Lake has a water quality grade of D (Nutrient-rich). Bacteria levels can spike quickly after heavy rain, so always check Florida's current beach and health-department advisories before you swim.

Where this data comes from

14 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • Submitting organization not recorded for these samples14 samples · 2022–2023
Monitoring station identifiers (1)

Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.

Other records on this page

Impairment status from EPA ATTAINS 303(d) database