Belle Isle Lake
St. Mary County, Louisiana239 acresView mapDirections
No nutrient or algae sampling on record from LDEQ for this lake.
Belle Isle Lake in St. Mary County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Surface area: 239 acres.
Belle Isle Lake is a 239-acre lake in St. Mary County, Louisiana.
Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Belle Isle Lake is safe to swim in today is a call for the Louisiana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Belle Isle Lake
These are the measurements LDEQ publishes for Belle Isle 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. TSI undefined.
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Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
239 acres
No bathymetric survey has been published for Belle Isle Lake, so its depth is not documented here.
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Stays near Belle Isle Lake
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Frequently asked questions about Belle Isle Lake
Where is Belle Isle Lake?
- Belle Isle Lake is a lake in St. Mary County, Louisiana. Its water-quality measurements are published by LDEQ and shown on this page as reported.
What is the water quality of Belle Isle Lake?
- Belle Isle Lake in St. Mary County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Surface area: 239 acres.
Is Belle Isle Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
Measurements for Belle Isle Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.