Walton-Tresca Lake
Walton-Tresca Lake in Walton County, Florida has a water quality grade of B (Good). Water clarity: 3.2 ft visibility. Phosphorus: 14.5 µg/L.
- Clarity
- 3.2 ft
- Type
- Eutrophic
- Trend
- ↑ Improving
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Walton-Tresca Lake is a productive, nutrient-rich eutrophic lake in Walton County, Florida. Water quality is graded B based on 1 sampling years through 2022. Overall water quality is improving over recent sampling years. Compared to the 83 other monitored lakes in Walton County, Walton-Tresca Lake ranks #26 for water quality.
Source: EPA Water Quality Portal sampling records, FDEP, last sampled 2022-05-03. 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)
Very murky, less than 3.2 ft of visibility. Phosphorus level: 14.5 µg/L. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.2 ft | Not graded |
| Phosphorus | 14.5 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Walton-Tresca Lake
Compare lakeside cabins, hotels, and vacation rentals near Walton-Tresca Lake in Walton 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 Walton-Tresca Lake
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Fishing Walton-Tresca Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.05 m/yr | 5 |
| Phosphorus | ↑ Improving | -1.4 µg/L/yr | 5 |
EPA Impairment Status
Walton-Tresca Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit FL1037 · Official waterbody report · Matched by proximity (0.56 km)
County Ranking
Ranked #26 of 84 lakes in Walton County
Nearby Lakes in Walton County
Frequently asked questions about Walton-Tresca Lake
Where is Walton-Tresca Lake?
- Walton-Tresca Lake is a lake in Walton County, Florida. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Walton-Tresca Lake?
- Walton-Tresca Lake in Walton County, Florida has a water quality grade of B (Good). Water clarity: 3.2 ft visibility. Phosphorus: 14.5 µg/L.
Is Walton-Tresca Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Walton-Tresca Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
Explore Walton-Tresca Lake across LakeQuality
More Florida Lake Rankings
Other Grade B Lakes in Florida
Eutrophic Lakes in Florida
Where this data comes from
115 measurements from 2 monitoring stations, 2020–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- FLORIDA LAKEWATCH
21FLKWAT_WQX115 samples · 2020–2022
Monitoring station identifiers (2)
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