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LakeQuality

Wasp Lake

Humphreys County, MississippiView mapDirections

MDEQ publishes the water-quality measurements for Wasp Lake. Here is what has been measured.

Clarity
0.8 ft
Murkier than most
Secchi · sampled 2021
Phosphorus
90 µg/L
Typical for Mississippi
Measured by MDEQ
Chlorophyll-a
53.8 µg/L
More algae than most
Measured by MDEQ
Type
Hypereutrophic
Trophic class
  • Hypereutrophic

Wasp Lake in Humphreys County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 0.8 ft visibility. Phosphorus: 90 µg/L. Chlorophyll-a (algae): 53.8 µg/L.

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Wasp Lake is a highly nutrient-loaded hypereutrophic lake in Humphreys County, Mississippi. Compared to the 2 other monitored lakes in Humphreys County, Wasp Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-10-20. Methodology: how these readings are compared.

Swimming conditions

Readings only

Algae risk

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 Wasp Lake 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.

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Water quality measurements for Wasp Lake

These are the measurements MDEQ publishes for Wasp 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 0.8 ft of visibility. Phosphorus 90 µg/L. Chlorophyll-a 53.8 µg/L. TSI 73.

Water quality readings
MeasureReadingWhere it sits
Water clarity (Secchi depth)0.8ftMeasured, not scored

How deep a black-and-white disk stays visible from the surface. Higher is clearer.

Total phosphorus90µg/LMeasured, not scored

The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential.

Chlorophyll-a (algae)53.8µg/LPoor
GoodFairPoor
Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a.73Hypereutrophic
OligotrophicMesotrophicEutrophicHypereutrophic

Very high nutrients, dense algae, poor clarity

Ask about Wasp Lake

Answers come straight from the public measurements and survey records on this page.

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Stays near Wasp Lake

Compare lakeside cabins, hotels, and vacation rentals near Wasp Lake in Humphreys 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 Wasp Lake are listed below.

Top-rated places to stay near Wasp Lake

Prices for Oct 9–11, 4 adults. Change dates on the map below.

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Fishing Wasp Lake

Reservoir Info (USACE NID)

Wasp Lake is a man-made reservoir impounded by the Thornton Lake (completed 1978), built primarily for other on the Bear Creek -Os; earth-type dam, 8 ft tall and 3,200 ft long.

Normal storage
90 ac-ft
Max storage
90 ac-ft
Hazard class
Low
Owner
DAVIS THORNTON

Source: USACE National Inventory of Dams, NID ID MS00473 · Operator website · Matched by proximity (0.42 km)

Nearby Lakes in Humphreys County

Frequently asked questions about Wasp Lake

Where is Wasp Lake?

Wasp Lake is a lake in Humphreys County, Mississippi. Its water-quality measurements are published by MDEQ and shown on this page as reported.

What is the water quality of Wasp Lake?

Wasp Lake in Humphreys County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 0.8 ft visibility. Phosphorus: 90 µg/L. Chlorophyll-a (algae): 53.8 µg/L.

Measurements on this page ↑

Is Wasp Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

Hypereutrophic Lakes in Mississippi

Where this data comes from

113 measurements from 2 monitoring stations, 2020–2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.

Collected and reported by

  • MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY21MSWQ_WQX113 samples · 2020–2021

Analytical methods

  • Phosphorus by Colorimetry
  • 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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.