Dney Lake
Dney Lake in Lake County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 1.1 ft visibility. Phosphorus: 60.6 µg/L.
- Clarity
- 1.1 ft
- Typical in August
- 86°F
- Type
- Eutrophic
- Trend
- ↓ Declining
Grade D measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Dney Lake →
Next lake in Lake County
Swipe left or right on this bar to open the next or previous lake.
Dney Lake is a productive, nutrient-rich eutrophic lake in Lake County, Florida. Water quality is graded D based on 1 sampling years through 2025. Overall water quality is declining over recent sampling years. Compared to the 127 other monitored lakes in Lake County, Dney Lake ranks #117 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2025-04-21. Grade methodology: LakeQuality methodology.
Watch Dney Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Grade onlyElevated nutrients
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.
Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum
Water Quality Grade: D (Nutrient-rich)
Very murky, less than 1.1 ft of visibility. Phosphorus level: 60.6 µg/L. Trophic State Index: 70.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 1.1 ft | Not graded |
| Phosphorus | 60.6 µg/L | Poor |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 70 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Dney Lake
Compare lakeside cabins, hotels, and vacation rentals near Dney 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 Dney Lake are listed below.
Top-rated places to stay near Dney 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
Dney 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 Jan (about 59°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 107 field readings (2010–2025) via the EPA Water Quality Portal. See the full Dney Lake water temperature breakdown →
Fishing Dney Lake
Water Quality Trend: ↓ Declining
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.212 m/yr | 5 |
| Phosphorus | ↓ Declining | +4.34 µg/L/yr | 5 |
EPA Impairment Status
Dney Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL2832A · Official waterbody report · Matched by proximity (0.22 km)
County Ranking
Ranked #117 of 128 lakes in Lake County
Nearby Lakes With Higher Grades
Dney 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.
See full comparison →Nearby Lakes in Lake County
Frequently asked questions about Dney Lake
Where is Dney Lake?
- Dney 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 Dney Lake?
- Dney Lake in Lake County, Florida has a water quality grade of D (Nutrient-rich). Water clarity: 1.1 ft visibility. Phosphorus: 60.6 µg/L.
Is Dney Lake safe to swim in?
- Nutrients and algae run higher than average — check local advisories before swimming, and skip the water if you see scum. Dney Lake has a water quality grade of D (Nutrient-rich). Always check local health department advisories before swimming.
What is the water temperature of Dney Lake?
- Dney Lake typically sits around 86°F at the surface in August, from 107 EPA Water Quality Portal field readings (2010–2025). That is a typical value for the month, not a live reading.
Explore Dney Lake across LakeQuality
More Florida Lake Rankings
Other Grade D Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
96 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_WQX96 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