Grand Bay
Concordia County, Louisiana134 acresView mapDirections
No nutrient or algae sampling on record from LDEQ for this lake.
Grand Bay in Concordia County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Surface area: 134 acres.
Grand Bay is a 134-acre lake in Concordia 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 Grand Bay 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 Grand Bay
These are the measurements LDEQ publishes for Grand Bay, 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.
Ask about Grand Bay
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
134 acres
Shoreline
2.1 mi
No bathymetric survey has been published for Grand Bay, so its depth is not documented here.
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Stays near Grand Bay
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Frequently asked questions about Grand Bay
Where is Grand Bay?
- Grand Bay is a lake in Concordia County, Louisiana. Its water-quality measurements are published by LDEQ and shown on this page as reported.
What is the water quality of Grand Bay?
- Grand Bay in Concordia County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Surface area: 134 acres.
Is Grand Bay 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 Grand Bay come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.