Clean Water Act discharge permit · NPDES LAG536579
AIR LIQUIDE LARGE INDUSTRIES U.S. LP - PORT ALLEN LMA, Port Allen, LA: NPDES LAG536579 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
AIR LIQUIDE LARGE INDUSTRIES U.S. LP - PORT ALLEN LMA holds NPDES permit LAG536579. EPA’s file records it issued January 26, 2023 and expiring November 30, 2027. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | AIR LIQUIDE LARGE INDUSTRIES U.S. LP - PORT ALLEN LMA |
|---|---|
| Permittee as filed | AIR LIQUIDE LARGE INDUSTRIES U.S. LP - PORT ALLEN LMA |
| NPDES ID | LAG536579 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | January 26, 2023 |
| Expiration date | November 30, 2027 |
| Address | Port Allen, LA 70000 |
| Subwatershed | Gulf Intracoastal Waterway-Choctaw Basin Drainage Canal (HUC 080703000206) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 6Under a numeric limit
- 3With a violation of any kind
- 3With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 2 | 2 | 2 | June 30, 2026 | 163% over the limit |
| Solids, total suspended | 2 | 2 | 2 | June 30, 2026 | 197% over the limit |
| Coliform, fecal general | 2 | 2 | 2 | June 30, 2026 | 4,900% over the limit |
| pH | 2 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 0 | 0 | ||
| Oil & Grease | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES LAG536579.
Velarion’s copy of EPA’s ICIS-NPDES files does not yet include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, LAG536579.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID LAG536579 there.
Nearby on the register
- Discharge permits in Port Allen
- Every permit record in Port Allen, A to Z
- Discharge permits in Louisiana
- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.