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Little Sand Lake

B
Grade B — Good
Good · #139 of 320 lakes in the county · 11.5 ft clear · Oligotrophic · from A
Oligotrophic

Little Sand Lake in Orange County, Florida has a water quality grade of B (Good). Water clarity: 11.5 ft visibility. Phosphorus: 6 µg/L.

Clarity
11.5 ft
Typical in August
86°F
Type
Oligotrophic
Trend
Declining

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Little Sand Lake is a cold, clear oligotrophic lake in Orange County, Florida. Water quality is graded B based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Compared to the 319 other monitored lakes in Orange County, Little Sand Lake ranks #139 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-02-25. 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 · 27 samples, 8 seasons

Based on E. coli testing, Little Sand Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 27 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.

Get alerts for Little Sand Lake

Water Quality Grade: B (Good)

Good clarity, visible to about 11.5 ft. Phosphorus level: 6 µg/L. Trophic State Index: 36.

MetricValueGrade
Water Clarity (Secchi Depth)11.5 ftNot graded
Phosphorus6 µg/LGood
Chlorophyll-a (Algae)No recent samples
Trophic State Index (TSI)36Oligotrophic

Low nutrients, clear water, excellent for swimming

Where to stay near Little Sand Lake

Compare lakeside cabins, hotels, and vacation rentals near Little Sand Lake in Orange 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 Little Sand Lake

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 →

Water Temperature

Little Sand Lake typically sits around 86°F at the surface in August. Summer average is about 85°F. Usually warmest in Aug (about 86°F) and coldest in Feb (about 66°F). These are typical values by month — not a live reading.

Jan
Feb
66°
Mar
71°
Apr
77°
May
84°
Jun
84°
Jul
Aug
86°
Sep
85°
Oct
79°
Nov
73°
Dec
68°

Typical surface water temperature by month, from 50 field readings (20102025) via the EPA Water Quality Portal. See the full Little Sand Lake water temperature breakdown →

Fishing Little Sand Lake

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

MetricTrendChange/YearYears
Water Clarity Declining-1.39 m/yr5
Phosphorus Declining+0.8 µg/L/yr5
See year-by-year chart →

EPA Impairment Status

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

Causes of impairment

MercuryMetals (other than mercury)

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

Source: EPA ATTAINS assessment unit FL3169C · Official waterbody report · Matched by proximity (2.32 km)

County Ranking

Ranked #139 of 320 lakes in Orange County

Nearby Lakes in Orange County

Frequently asked questions about Little Sand Lake

Where is Little Sand Lake?

Little Sand Lake is a lake in Orange County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.

What is the water quality grade for Little Sand Lake?

Little Sand Lake in Orange County, Florida has a water quality grade of B (Good). Water clarity: 11.5 ft visibility. Phosphorus: 6 µg/L.

Is Little Sand Lake safe to swim in?

Based on E. coli testing, Little Sand Lake never exceeded the EPA safe-swimming threshold (235 MPN/100mL) — on 0% of 27 samples across 8 seasons. That works out to a bacteria swim-safety grade of A — a historical summary of past testing, not a current reading. Little Sand Lake has a water quality grade of B (Good). Bacteria levels can spike quickly after heavy rain, so always check Florida's current beach and health-department advisories before you swim.

What is the water temperature of Little Sand Lake?

Little Sand Lake typically sits around 86°F at the surface in August, from 50 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

Oligotrophic Lakes in Florida

Where this data comes from

58 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 samples58 samples · 2020–2025
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