Duck River Lake
Humphreys County, TennesseeView mapDirections
TDEC publishes the water-quality measurements for Duck River Lake. Here is what has been measured.
- Hypereutrophic
Duck River Lake in Humphreys County, Tennessee has water-quality measurements published by TDEC, shown here as reported. Phosphorus: 200 µg/L.
Duck River Lake is a highly nutrient-loaded hypereutrophic lake in Humphreys County, Tennessee.
Source: EPA Water Quality Portal sampling records, TDEC, last sampled 2024-06-06. Methodology: how these readings are compared.
Swimming conditions
Readings onlyElevated nutrients
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 Duck River Lake is safe to swim in today is a call for the Tennessee Department of Environment and Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Duck River Lake
These are the measurements TDEC publishes for Duck River Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Phosphorus 200 µg/L. TSI 81.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | 200µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 81 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
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Stays near Duck River Lake
Compare lakeside cabins, hotels, and vacation rentals near Duck River Lake in Humphreys County, Tennessee — 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 readings cover nutrients and algae, not lodging. Cabins and rentals around Duck River Lake are listed below.
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Fishing Duck River Lake
Nearby Lakes in Humphreys County
Frequently asked questions about Duck River Lake
Where is Duck River Lake?
- Duck River Lake is a lake in Humphreys County, Tennessee. Its water-quality measurements are published by TDEC and shown on this page as reported.
What is the water quality of Duck River Lake?
- Duck River Lake in Humphreys County, Tennessee has water-quality measurements published by TDEC, shown here as reported. Phosphorus: 200 µg/L.
Is Duck River Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Explore Duck River Lake across LakeQuality
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Hypereutrophic Lakes in Tennessee
Where this data comes from
33 measurements from 2 monitoring stations, 2012–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- TDEC Division of Water Resources
TDECWR_WQX33 samples · 2012–2024
Analytical methods
- 4500 P E ~ Phosphorus in Water by Colorimetry- Ascorbic Acid Method
- 4500 P H ~ Manual Digestion and Flow Injection Analysis for Total Phosphorus
- Phosphorus by Colorimetry
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.