Clear Marais
Clear Marais in Calcasieu County, Louisiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1082 acres.
- Area
- 1,082 acres
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Why Clear Marais 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 Clear Marais, 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.
Clear Marais is a 1,082-acre lake in Calcasieu County, Louisiana.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Clear Marais 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 Clear Marais
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 Clear Marais
Compare lakeside cabins, hotels, and vacation rentals near Clear Marais in Calcasieu 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 Clear Marais
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 1,082 acres |
No bathymetric survey has been published for Clear Marais, so its depth is not documented here.
Fishing Clear Marais
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Frequently asked questions about Clear Marais
Where is Clear Marais?
- Clear Marais is a lake in Calcasieu 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 Clear Marais?
- Clear Marais in Calcasieu County, Louisiana is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 1082 acres.
Is Clear Marais safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Clear Marais is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Clear Marais across LakeQuality
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Where this data comes from
Measurements for Clear Marais come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.