Lake Palourde West-Northwest of Gibson
Lake Palourde West-Northwest of Gibson in St. Martin Parish County, Louisiana has a water quality grade of F (Algae-prone). Phosphorus: 405 µg/L. Chlorophyll-a (algae): 40.4 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 West-Northwest of Gibson →
Lake Palourde West-Northwest of Gibson is a highly nutrient-loaded hypereutrophic lake in St. Martin Parish County, Louisiana. Water quality is graded F based on 3 sampling years through 2022. Compared to the 4 other monitored lakes in St. Martin Parish County, Lake Palourde West-Northwest of Gibson ranks #3 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. Phosphorus level: 405 µg/L. Chlorophyll-a: 40.4 µg/L. Trophic State Index: 79.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 405 µg/L | Poor |
| Chlorophyll-a (Algae) | 40.4 µg/L | Poor |
| Trophic State Index (TSI) | 79 | Hypereutrophic |
Very high nutrients, dense algae, poor clarity
Where to stay near Lake Palourde West-Northwest of Gibson
Compare lakeside cabins, hotels, and vacation rentals near Lake Palourde West-Northwest of Gibson in St. Martin 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 West-Northwest of Gibson are listed below.
Top-rated places to stay near Lake Palourde West-Northwest of Gibson
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Fishing Lake Palourde West-Northwest of Gibson
EPA Impairment Status
Lake Palourde West-Northwest of Gibson is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit LA120205_00 · Official waterbody report · Matched by proximity (2.42 km)
County Ranking
Ranked #3 of 5 lakes in St. Martin Parish County
Nearby Lakes in St. Martin Parish County
Frequently asked questions about Lake Palourde West-Northwest of Gibson
Where is Lake Palourde West-Northwest of Gibson?
- Lake Palourde West-Northwest of Gibson is a lake in St. Martin 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 West-Northwest of Gibson?
- Lake Palourde West-Northwest of Gibson in St. Martin Parish County, Louisiana has a water quality grade of F (Algae-prone). Phosphorus: 405 µg/L. Chlorophyll-a (algae): 40.4 µg/L.
Is Lake Palourde West-Northwest of Gibson 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 West-Northwest of Gibson has a water quality grade of F (Algae-prone). Algae concentration (chlorophyll-a) is 40.4 µg/L. Always check local health department advisories before swimming.
Explore Lake Palourde West-Northwest of Gibson across LakeGrade
More Louisiana Lake Rankings
Other Grade F Lakes in Louisiana
St. Mary Parish County · Algae-prone
St. Mary Parish County · Algae-prone
St. Mary Parish County · Algae-prone
St. Mary Parish County · Algae-prone
St. Mary Parish County · Algae-prone
Assumption Parish County · Algae-prone
Hypereutrophic Lakes in Louisiana
Where this data comes from
20 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_WQX20 samples · 2022
Analytical methods
- Phosphorus by Two Reagent Colorimetry
- Multiple Analytical Methods: Analysis for Total Nutrient using Louisiana Department of Environmental Quality specific me
- 2130 B ~ Nephelometric Method
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database