Bay de Mongles
Bay de Mongles in Terrebonne County, Louisiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 575 acres.
- Area
- 575 acres
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Why Bay de Mongles 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 Bay de Mongles, 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.
Bay de Mongles is a 575-acre lake in Terrebonne County, Louisiana.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Bay de Mongles water quality
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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 Bay de Mongles
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 Bay de Mongles
Compare lakeside cabins, hotels, and vacation rentals near Bay de Mongles in Terrebonne 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 Bay de Mongles
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 575 acres |
No bathymetric survey has been published for Bay de Mongles, so its depth is not documented here.
Fishing Bay de Mongles
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Frequently asked questions about Bay de Mongles
Where is Bay de Mongles?
- Bay de Mongles is a lake in Terrebonne 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 Bay de Mongles?
- Bay de Mongles in Terrebonne County, Louisiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 575 acres.
Is Bay de Mongles safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Bay de Mongles is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Bay de Mongles across LakeQuality
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Where this data comes from
Measurements for Bay de Mongles come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.