Lafourche Parish County Lake Quality
Louisiana, 8 lakes, average grade D (Nutrient-rich)
Only 8 lakes in Lafourche Parish County carry an active grade. The county-level summary is therefore representative of those specific lakes, not necessarily of every water body in the county. On average, Lafourche Parish County lakes grade D, with phosphorus loading and reduced clarity showing up across most of the dataset.
Most of the county's monitored lakes are shallow — under 50 feet — which means wind keeps the water column mixed all summer and sediment-bound phosphorus releases back into the surface layer whenever the bottom is disturbed. Lake Salvador West of Lafitte (D) is the cleanest in the county.
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Quick Answers for Lafourche Parish County
Planning a trip? Check special fishing regulations for Lake Salvador West of Lafitte — or check the official Louisiana fishing regulations.
All Lakes in Lafourche Parish County
8 lakes · 1 graded, 7 not rated1 graded lake · 7 not rated, hidden
| # | Lake | Grade | Clarity | Phosphorus | Algae | Trophic | Access |
|---|---|---|---|---|---|---|---|
| 1 | DLake Salvador West of LafitteLafourche Parish | D | No recent samples | 97 µg/L | No recent samples | No recent samples | Not recorded |
| NRLac des Allemands East-Northeast of Kraemer LakeLafourche Parish | NR | No recent samples | 275 µg/L | No recent samples | No recent samples | Not recorded | |
| NRLac des Allemands West of Paradis LakeLafourche Parish | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake Boeuf Northeast of EwingLafourche Parish | NR | No recent samples | 230 µg/L | No recent samples | No recent samples | Not recorded | |
| NRLake Salvador East of GheensLafourche Parish | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake Salvador North-Northeast of LaroseLafourche Parish | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake Salvador Northeast of LaroseLafourche Parish | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded | |
| NRLake Salvador Southeast of des AllemandsLafourche Parish | NR | No recent samples | No recent samples | No recent samples | No recent samples | Not recorded |
NR = not rated: the monitoring record does not meet the evidence bar for a grade. That is EPA Integrated Reporting Category 3 (insufficient information), not a failing grade. How grading works.
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Other Counties in Louisiana
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Source: EPA National Aquatic Resource Surveys, 2026.