Little Grand Bay
Little Grand Bay in Lafourche County, Louisiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 366 acres.
- Area
- 366 acres
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Why Little Grand Bay has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Little Grand Bay, no water-quality sampling on record for this lake.
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Little Grand Bay is a 366-acre lake in Lafourche County, Louisiana.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Little Grand Bay
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Little Grand Bay
Compare lakeside cabins, hotels, and vacation rentals near Little Grand Bay in Lafourche County, Louisiana — 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.
Top-rated places to stay near Little Grand Bay
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 366 acres |
No bathymetric survey has been published for Little Grand Bay, so its depth is not documented here.
Fishing Little Grand Bay
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Frequently asked questions about Little Grand Bay
Where is Little Grand Bay?
- Little Grand Bay is a lake in Lafourche County, Louisiana. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Little Grand Bay?
- Little Grand Bay in Lafourche County, Louisiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 366 acres.
Is Little Grand Bay safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Little Grand Bay is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Little Grand Bay across LakeQuality
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Where this data comes from
Measurements for Little Grand Bay come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.