Lake Palourde North of Greenwood
St. Mary Parish County, LouisianaView mapDirections
This is the name LDEQ records for this water. It can describe one sampling location rather than the water as a whole.
LDEQ publishes the water-quality measurements for Lake Palourde North of Greenwood. Here is what has been measured.
- Hypereutrophic
- Impaired · Turbidity
- Limited data
Lake Palourde North of Greenwood in St. Mary Parish County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Chlorophyll-a (algae): 43 µg/L.
Lake Palourde North of Greenwood is a highly nutrient-loaded hypereutrophic lake in St. Mary Parish County, Louisiana. 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. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Lake Palourde North of Greenwood is listed impaired under Clean Water Act §303(d) (IR 5) for turbidity. Check local advisories before you swim.
Whether Lake Palourde North of Greenwood is safe to swim in today is a call for the Louisiana Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Palourde North of Greenwood
These are the measurements LDEQ publishes for Lake Palourde North of Greenwood, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. Chlorophyll-a 43 µg/L. TSI 67.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | No reading How deep a black-and-white disk stays visible from the surface. Higher is clearer. | |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | 43µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 67 | Hypereutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Very high nutrients, dense algae, poor clarity
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Stays 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 readings cover nutrients and algae, not lodging. Cabins and rentals around Lake Palourde North of Greenwood are listed below.
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Fishing Lake Palourde North of Greenwood
EPA Impairment Status
Lake Palourde North of Greenwood is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit LA120205_00 · Official waterbody report
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 in St. Mary Parish County, Louisiana. This is the name LDEQ records for this water. It can describe one sampling location rather than the water as a whole. Its water-quality measurements are published by LDEQ and shown on this page as reported.
What is the water quality of Lake Palourde North of Greenwood?
- Lake Palourde North of Greenwood in St. Mary Parish County, Louisiana has water-quality measurements published by LDEQ, shown here as reported. Chlorophyll-a (algae): 43 µg/L.
Is Lake Palourde North of Greenwood safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Lake Palourde North of Greenwood is listed impaired under Clean Water Act §303(d) (IR 5) for turbidity. Check local advisories before you swim.
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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)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database