Lake Palourde North of Greenwood
Lake Palourde North of Greenwood in St. Mary Parish County, Louisiana has a water quality grade of F (Algae-prone). Chlorophyll-a (algae): 43 µg/L.
- Type
- Hypereutrophic
Grade F measures nutrients and algae, not whether this is a good place for a cabin trip. Cabins and rentals near Lake Palourde North of Greenwood →
Lake Palourde North of Greenwood is a highly nutrient-loaded hypereutrophic lake in St. Mary Parish County, Louisiana. Water quality is graded F based on 1 sampling years through 2022. Compared to the 5 other monitored lakes in St. Mary Parish County, Lake Palourde North of Greenwood ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2022-06-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom
Water Quality Grade: F (Algae-prone)
No clarity data. Chlorophyll-a: 43 µg/L. Trophic State Index: 67.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 43 µg/L | Poor |
| Trophic State Index (TSI) | 67 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Palourde North of Greenwood
Compare lakeside cabins, hotels, and vacation rentals near Lake Palourde North of Greenwood in St. Mary Parish 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. The water-quality grade measures nutrients and algae, not lodging — cabins and rentals around Lake Palourde North of Greenwood are listed below.
Top-rated places to stay near Lake Palourde North of Greenwood
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Fishing Lake Palourde North of Greenwood
County Ranking
Ranked #6 of 6 lakes in St. Mary Parish County
Nearby Lakes in St. Mary Parish County
Frequently asked questions about Lake Palourde North of Greenwood
Where is Lake Palourde North of Greenwood?
- Lake Palourde North of Greenwood is a lake in St. Mary Parish County, Louisiana. LakeQuality grades it F for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Lake Palourde North of Greenwood?
- Lake Palourde North of Greenwood in St. Mary Parish County, Louisiana has a water quality grade of F (Algae-prone). Chlorophyll-a (algae): 43 µg/L.
Is Lake Palourde North of Greenwood safe to swim in?
- Algae and nutrients are often high — check current advisories before swimming. Skip the water if you see scum or a paint-like bloom. Lake Palourde North of Greenwood has a water quality grade of F (Algae-prone). Algae concentration (chlorophyll-a) is 43 µg/L. Always check local health department advisories before swimming.
Explore Lake Palourde North of Greenwood across LakeGrade
More Louisiana Lake Rankings
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St. Martin Parish County · Algae-prone
Assumption Parish County · Algae-prone
Hypereutrophic Lakes in Louisiana
Where this data comes from
6 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- LDEQ/Water Planning and Assessment (Louisiana)
LADEQWPD_WQX6 samples · 2022
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.