Snkna Lake
Lake County, FloridaView mapDirections
Florida DEP publishes the water-quality measurements for Snkna Lake. Here is what has been measured.
- Eutrophic
- Impaired · Oxygen depletion (low DO)
- 47 ft max depth
- Public access
Snkna Lake in Lake County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 4.8 ft visibility. Phosphorus: 34.8 µg/L.
Snkna Lake is a productive, nutrient-rich eutrophic lake in Lake County, Florida with an estimated average depth of about 47 feet. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available with 1 public boat landing. Compared to the 127 other monitored lakes in Lake County, Snkna Lake ranks #40 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-03. Methodology: how these readings are compared.
What Snkna Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch1 documented ramp
Swimming conditions
Readings onlyLow algae
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. Snkna Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pesticides. Check local advisories before you swim.
Whether Snkna 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.
Water quality measurements for Snkna Lake
These are the measurements Florida DEP publishes for Snkna Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.8 ft. Phosphorus 34.8 µg/L. TSI 55.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 34.8µg/L | Good 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. | 55 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Snkna Lake
Answers come straight from the public measurements and survey records on this page.
Water Temperature
Snkna Lake typically sits around 77°F at the surface in October. Summer average is about 82°F. Usually warmest in Jul (about 85°F) and coldest in Feb (about 58°F). These are typical values by month — not a live reading.
Column height runs from this lake’s coldest month (58°F) to its warmest (85°F).
Typical surface water temperature by month, from 42 field readings (2012–2025) via the EPA Water Quality Portal. See the full Snkna Lake water temperature breakdown →
Lake Details
Max depth
~47 ft est.
Public access
Yes
Listed by Florida DEP
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Florida has not published bathymetry for Snkna Lake.
Lake Size & Watershed
Watershed (drainage) area
81 sq mi
HydroLAKES / HydroSHEDS
Surface area
213 acres
HydroLAKES / HydroSHEDS
Shoreline
3.4 mi
HydroLAKES / HydroSHEDS
Elevation
56 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Recreation & Access
- Emeralda Marsh Landing (Primitive Boat Launch)Public
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Stays via Stay22
Stays near Snkna Lake
Compare lakeside cabins, hotels, and vacation rentals near Snkna 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 Snkna Lake
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Fishing Snkna Lake
Water Quality Trend: Improving
Based on 5 years of monitoring (2020–2024).
Water clarity
Improving3 years
Phosphorus
Improving-2.21 µg/L/yr5 years
EPA Impairment Status
Snkna Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life, Fish consumption.
Source: EPA ATTAINS assessment unit FL2811 · Official waterbody report
Nearby Lakes in Lake County
Frequently asked questions about Snkna Lake
Where is Snkna Lake?
- Snkna 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 Snkna Lake?
- Snkna Lake in Lake County, Florida has water-quality measurements published by Florida DEP, shown here as reported. Water clarity: 4.8 ft visibility. Phosphorus: 34.8 µg/L.
Is Snkna Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Snkna Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO), pesticides. Check local advisories before you swim.
What is the water temperature of Snkna Lake?
- Snkna Lake typically sits around 77°F at the surface in October, from 42 EPA Water Quality Portal field readings (2012–2025). That is a typical value for the month, not a live reading.
How deep is Snkna Lake?
- No published bathymetric survey covers Snkna Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 47 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Are there boat ramps on Snkna Lake?
- Snkna Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Emeralda Marsh Landing (Primitive Boat Launch). Public access is listed as yes.
Can I fish at Snkna Lake?
- Snkna Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Florida's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
68 measurements from 1 monitoring station, 2020–2025. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- St. Johns River Water Management District
21FLSJWM_WQX68 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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory