Clean Water Act discharge permit · NPDES LAG536763
AIRGAS USA, LLC, New Iberia, LA: NPDES LAG536763 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
AIRGAS USA, LLC holds NPDES permit LAG536763. EPA’s file records it issued June 18, 2024 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 | AIRGAS USA, LLC |
|---|---|
| Permittee as filed | AIRGAS USA, LLC |
| NPDES ID | LAG536763 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 18, 2024 |
| Expiration date | November 30, 2027 |
| Address | New Iberia, LA 70560 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bayou Carlin-Frontal Intercoastal Waterway (HUC 080801030401) |
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 |
|---|---|---|---|---|---|
| Enterococci | 2 | 2 | 2 | June 30, 2026 | 99,999% over the limit |
| Solids, total suspended | 1 | 1 | 1 | December 31, 2025 | 25% over the limit |
| Coliform, fecal general | 1 | 1 | 1 | December 31, 2025 | 56% over the limit |
| pH | 2 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 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 LAG536763.
Velarion’s copy of EPA’s ICIS-NPDES files does not 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.
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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 LAG536763 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.