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LakeQuality

Spring Lake

Seminole County, FloridaView mapDirections

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

Clarity
2.9 ft
Typical for Florida
Secchi · sampled 2025
Phosphorus
19 µg/L
Typical for Florida
Measured by Florida DEP
Water temp
~78°F
Typical for Oct · EPA WQP
Type
Eutrophic
Trophic class
Trend
Stable
6 years of samples
  • Eutrophic
  • Impaired · Nutrients (phosphorus, nitrogen)
  • Limited data

Spring Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.9 ft visibility. Phosphorus: 19 µg/L.

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Spring Lake is a productive, nutrient-rich eutrophic lake in Seminole County, Florida. Water clarity is declining over recent sampling years. Compared to the 121 other monitored lakes in Seminole County, Spring Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-01. 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.

Nutrient and algae readings are not a swimming clearance. Spring Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Whether Spring 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 Spring Lake →

Water quality measurements for Spring Lake

These are the measurements Florida DEP publishes for Spring 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 2.9 ft of visibility. Phosphorus 19 µg/L. TSI 54.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)2.9ftMeasured, not scored

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

Total phosphorus19µg/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.54Eutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

High nutrients, frequent algae, reduced clarity

Ask about Spring Lake

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

Water Temperature

Spring Lake typically sits around 78°F at the surface in October. Summer average is about 87°F. Usually warmest in Jul (about 89°F) and coldest in Feb (about 64°F). These are typical values by month — not a live reading.

65°
Jan
64°
Feb
72°
Mar
78°
Apr
79°
May
85°
Jun
89°
Jul
88°
Aug
86°
Sep
78°
Oct
73°
Nov
67°
Dec

Column height runs from this lake’s coldest month (64°F) to its warmest (89°F).

Typical surface water temperature by month, from 107 field readings (2010–2025) via the EPA Water Quality Portal. See the full Spring Lake water temperature breakdown →

Stays via Stay22

Stays near Spring Lake

Compare lakeside cabins, hotels, and vacation rentals near Spring Lake in Seminole 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 Spring 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 Spring Lake

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

  • Water clarity

    Worsening

    6 years

  • Phosphorus

    Improving

    -1.04 µg/L/yr6 years

See year-by-year chart →

EPA Impairment Status

Spring Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).

Causes of impairment

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 FL2987A · Official waterbody report

Nearby Lakes in Seminole County

Frequently asked questions about Spring Lake

Where is Spring Lake?

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

What is the water quality of Spring Lake?

Spring Lake in Seminole County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 2.9 ft visibility. Phosphorus: 19 µg/L.

Measurements on this page ↑

Is Spring Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Spring Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.

Swimming on this page ↑

What is the water temperature of Spring Lake?

Spring Lake typically sits around 78°F at the surface in October, from 107 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.

Temp on this page ↑

Where this data comes from

53 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 samples53 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