Beaver Lake
Lamar County, Mississippi108 acresView mapDirections
MDEQ publishes the water-quality measurements for Beaver Lake. Here is what has been measured.
- Hypereutrophic
- Impaired · pH / acidity
- Limited data
Beaver Lake in Lamar County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 42.2 µg/L. Surface area: 108 acres.
Beaver Lake is a 108-acre highly nutrient-loaded hypereutrophic lake in Lamar County, Mississippi. Compared to the 2 other monitored lakes in Lamar County, Beaver Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-10-18. 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. Beaver Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Whether Beaver 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.
Water quality measurements for Beaver Lake
These are the measurements MDEQ publishes for Beaver 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 ft of visibility. Phosphorus 60 µg/L. Chlorophyll-a 42.2 µg/L. TSI 66.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 60µg/L | Measured, not scored The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. |
| Chlorophyll-a (algae) | 42.2µg/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. | 66 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
Ask about Beaver Lake
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Lake Details
Surface area
108 acres
No bathymetric survey has been published for Beaver Lake, so its depth is not documented here.
Stays via Stay22
Stays near Beaver Lake
Compare lakeside cabins, hotels, and vacation rentals near Beaver Lake in Lamar 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 Beaver Lake are listed below.
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Fishing Beaver Lake
Reservoir Info (USACE NID)
Beaver Lake is a man-made reservoir impounded by the Beaver Lake Dam (completed 1968), built primarily for recreation on the Beaver Creek; earth-type dam, 24 ft tall and 1,150 ft long.
- Surface area
- 108 ac
- Normal storage
- 783 ac-ft
- Max storage
- 1,494 ac-ft
- Drainage area
- 7.3 sq mi
- Hazard class
- Low
- Owner
- BEAVER LAKE HOA
Source: USACE National Inventory of Dams, NID ID MS00709 · Operator website
EPA Impairment Status
Beaver Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
Source: EPA ATTAINS assessment unit MS418913 · Official waterbody report
Nearby Lakes in Lamar County
Frequently asked questions about Beaver Lake
Where is Beaver Lake?
- Beaver Lake is a lake in Lamar County, Mississippi. Its water-quality measurements are published by MDEQ and shown on this page as reported.
What is the water quality of Beaver Lake?
- Beaver Lake in Lamar County, Mississippi has water-quality measurements published by MDEQ, shown here as reported. Water clarity: 2 ft visibility. Phosphorus: 60 µg/L. Chlorophyll-a (algae): 42.2 µg/L. Surface area: 108 acres.
Is Beaver Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Beaver Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pH / acidity. Check local advisories before you swim.
Explore Beaver Lake across LakeQuality
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Where this data comes from
22 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- MISSISSIPPI DEPARTMENT OF ENVIRONMENTAL QUALITY
21MSWQ_WQX22 samples · 2022
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database