Lake Gaston
Warren County, North CarolinaView mapDirections
NC DEQ publishes the water-quality measurements for Lake Gaston. Here is what has been measured.
- Eutrophic
- Limited data
Lake Gaston in Warren County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 4.1 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 12 µg/L.
Lake Gaston is a productive, nutrient-rich eutrophic lake in Warren County, North Carolina.
Source: EPA Water Quality Portal sampling records, NCDEQ, last sampled 2024-10-08. 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 Lake Gaston 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 Lake Gaston
These are the measurements NC DEQ publishes for Lake Gaston, 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 4.1 ft. Phosphorus 30 µg/L. Chlorophyll-a 12 µg/L. TSI 55.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 30µg/L | Fair GoodFairPoor |
| Chlorophyll-a (algae) | 12µg/L | Fair GoodFairPoor |
| 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
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Answers come straight from the public measurements and survey records on this page.
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Fishing Lake Gaston
Nearby Lakes in Warren County
Frequently asked questions about Lake Gaston
Where is Lake Gaston?
- Lake Gaston is a lake in Warren 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 Lake Gaston?
- Lake Gaston in Warren County, North Carolina has water-quality measurements published by NC DEQ, shown here as reported. Water clarity: 4.1 ft visibility. Phosphorus: 30 µg/L. Chlorophyll-a (algae): 12 µg/L.
Is Lake Gaston safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Lake Gaston across LakeQuality
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Where this data comes from
40 measurements from 2 monitoring stations, 2024. 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 · 2024
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.