Lake Palourde North-Northeast of Greenwood
Lake Palourde North-Northeast of Greenwood in St. Mary Parish County, Louisiana has a water quality grade of F (Algae-prone). Chlorophyll-a (algae): 42.5 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-Northeast of Greenwood →
Lake Palourde North-Northeast 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-Northeast of Greenwood ranks #5 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: 42.5 µg/L. Trophic State Index: 67.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 42.5 µg/L | Poor |
| Trophic State Index (TSI) | 67 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Palourde North-Northeast of Greenwood
Compare lakeside cabins, hotels, and vacation rentals near Lake Palourde North-Northeast 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-Northeast of Greenwood are listed below.
Top-rated places to stay near Lake Palourde North-Northeast of Greenwood
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Fishing Lake Palourde North-Northeast of Greenwood
County Ranking
Ranked #5 of 6 lakes in St. Mary Parish County
Nearby Lakes in St. Mary Parish County
Frequently asked questions about Lake Palourde North-Northeast of Greenwood
Where is Lake Palourde North-Northeast of Greenwood?
- Lake Palourde North-Northeast 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-Northeast of Greenwood?
- Lake Palourde North-Northeast of Greenwood in St. Mary Parish County, Louisiana has a water quality grade of F (Algae-prone). Chlorophyll-a (algae): 42.5 µg/L.
Is Lake Palourde North-Northeast 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-Northeast of Greenwood has a water quality grade of F (Algae-prone). Algae concentration (chlorophyll-a) is 42.5 µg/L. Always check local health department advisories before swimming.
Explore Lake Palourde North-Northeast of Greenwood across LakeGrade
More Louisiana Lake Rankings
Other Grade F Lakes in Louisiana
St. Martin Parish County · Algae-prone
St. Martin Parish County · Algae-prone
St. Martin Parish County · Algae-prone
St. Martin Parish County · Algae-prone
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.