Lake Ferguson
Washington County, MississippiView mapDirections
MDEQ publishes the water-quality measurements for Lake Ferguson. Here is what has been measured.
- Hypereutrophic
- Public access
- Limited data
Lake Ferguson in Washington County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 2.5 ft visibility. Phosphorus: 170 µg/L. Chlorophyll-a (algae): 41.7 µg/L.
Lake Ferguson is a highly nutrient-loaded hypereutrophic lake in Washington County, Mississippi. Limited fish-species data available. Public access is available. Compared to the 3 other monitored lakes in Washington County, Lake Ferguson ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2023-06-15. 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 Ferguson is safe to swim in today is a call for the Mississippi Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Ferguson
These are the measurements MDEQ publishes for Lake Ferguson, 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 2.5 ft of visibility. Phosphorus 170 µg/L. Chlorophyll-a 41.7 µg/L. TSI 70.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.5ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 170µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 41.7µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 70 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Lake Ferguson
Answers come straight from the public measurements and survey records on this page.
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Stays near Lake Ferguson
Compare lakeside cabins, hotels, and vacation rentals near Lake Ferguson in Washington County, Mississippi — 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 Lake Ferguson are listed below.
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Fishing Lake Ferguson
Nearby Lakes in Washington County
Frequently asked questions about Lake Ferguson
Where is Lake Ferguson?
- Lake Ferguson is a lake in Washington County, Mississippi. Its water-quality measurements are published by MDEQ and shown on this page as reported.
What is the water quality of Lake Ferguson?
- Lake Ferguson in Washington County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 2.5 ft visibility. Phosphorus: 170 µg/L. Chlorophyll-a (algae): 41.7 µg/L.
Is Lake Ferguson safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Can I fish at Lake Ferguson?
- Public access to Lake Ferguson is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by Mississippi's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
40 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY
21MSWQ_WQX40 samples · 2022–2023
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
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.