Snkna Lake
Snkna Lake in Lake County, Florida has a water quality grade of B (Good). Water clarity: 4.8 ft visibility. Phosphorus: 34.8 µg/L.
- Clarity
- 4.8 ft
- Typical in August
- 81°F
- Max depth
- ~47 ft est.
- Type
- Eutrophic
- Trend
- ↑ Improving
- Public access
- Yes
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Snkna Lake is a productive, nutrient-rich eutrophic lake in Lake County, Florida with an estimated average depth of about 47 feet. Water quality is graded B based on 1 sampling years through 2025. 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. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLow algae
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.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
Murky, only visible to about 4.8 ft. Phosphorus level: 34.8 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.8 ft | Not graded |
| Phosphorus | 34.8 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay 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.
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Water Temperature
Snkna Lake typically sits around 81°F at the surface in August. 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.
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
| Characteristic | Value |
|---|---|
| Maximum Depth | ~47 ft est. |
| Average Depth | ~8 ft est. |
| Public Access | Yes |
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
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
Fishing Snkna Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.142 m/yr | 3 |
| Phosphorus | ↑ Improving | -2.21 µg/L/yr | 5 |
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
Source: EPA ATTAINS assessment unit FL2811 · Official waterbody report · Matched by proximity (0.48 km)
County Ranking
Ranked #40 of 128 lakes in Lake County
Nearby Lakes in Lake County
Frequently asked questions about Snkna Lake
Where is Snkna Lake?
- Snkna Lake is a lake in Lake County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Snkna Lake?
- Snkna Lake in Lake County, Florida has a water quality grade of B (Good). Water clarity: 4.8 ft visibility. Phosphorus: 34.8 µg/L.
Is Snkna Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Snkna Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What is the water temperature of Snkna Lake?
- Snkna Lake typically sits around 81°F at the surface in August, 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.
Explore Snkna Lake across LakeQuality
More Florida Lake Rankings
Other Grade B Lakes in Florida
Eutrophic Lakes in Florida
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)
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
Lake size & watershed from HydroLAKES (HydroSHEDS)
Named boat-access points from the USGS National Boat Ramps inventory