Bay Tree Lake
Bladen County, North CarolinaView mapDirections
NC DEQ publishes the water-quality measurements for Bay Tree Lake. Here is what has been measured.
- Eutrophic
- 28 ft max depth
- Limited data
Bay Tree Lake in Bladen County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 2.4 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 8.8 µg/L.
Bay Tree Lake is a productive, nutrient-rich eutrophic lake in Bladen County, North Carolina with an estimated average depth of about 28 feet. Compared to the 4 other monitored lakes in Bladen County, Bay Tree Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2023-09-18. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
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. Check local advisories before you swim.
Whether Bay Tree Lake is safe to swim in today is a call for the North Carolina Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Bay Tree Lake
These are the measurements NC DEQ publishes for Bay Tree 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 2.4 ft of visibility. Phosphorus 30 µg/L. Chlorophyll-a 8.8 µg/L. TSI 57.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 30µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 8.8µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 57 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Bay Tree Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~28 ft est.
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. North Carolina has not published bathymetry for Bay Tree Lake.
Lake Size & Watershed
Watershed (drainage) area
7 sq mi
HydroLAKES / HydroSHEDS
Surface area
1,386 acres
HydroLAKES / HydroSHEDS
Shoreline
5.6 mi
HydroLAKES / HydroSHEDS
Elevation
72 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.
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Nearby Lakes in Bladen County
Frequently asked questions about Bay Tree Lake
Where is Bay Tree Lake?
- Bay Tree Lake is a lake in Bladen County, North Carolina. Its water-quality measurements are published by NC DEQ and shown on this page as reported.
What is the water quality of Bay Tree Lake?
- Bay Tree Lake in Bladen County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 2.4 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 8.8 µg/L.
Is Bay Tree Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Bay Tree Lake?
- No published bathymetric survey covers Bay Tree Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 28 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Bay Tree Lake across LakeQuality
More lakes in North Carolina
Other Lakes in North Carolina
Eutrophic Lakes in North Carolina
Where this data comes from
40 measurements from 2 monitoring stations, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North Carolina Dept of Environmental Quality NCDEQ-DWR WQX
21NC03WQ40 samples · 2023
Analytical methods
- WSSSOP
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (2)
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
Lake size & watershed from HydroLAKES (HydroSHEDS)