Clean Water Act discharge permit · NPDES LA0075981
IMTT-AVONDALE, Avondale, LA: NPDES LA0075981 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 134Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
IMTT-AVONDALE, held by INTERNATIONAL MATEX TANK TERMINALS LLC, holds NPDES permit LA0075981, which discharges to Labranche Canal. EPA’s file records it issued September 20, 2019 and expiring October 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | IMTT-AVONDALE |
|---|---|
| Permittee as filed | INTERNATIONAL MATEX TANK TERMINALS LLC |
| NPDES ID | LA0075981 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 20, 2019 |
| Expiration date | October 31, 2024 |
| Address | Avondale, LA 70094 |
| Receiving water | LABRANCHE CANAL |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bayou La Branche-Frontal Lake Pontchartrain (HUC 080902030101) |
| SIC | 4226 – Special Warehousing And Storage |
| Other EPA IDs (FRS) | RCRA handler LAD982557829 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 135Pollutants on file
- 134Under a numeric limit
- 12With a violation of any kind
- 6With 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; the 60 with the most exceedances of 135 are shown.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Solids, total suspended | 16 | 13 | 12 | January 31, 2026 | 400% over the limit |
| Coliform, fecal general | 8 | 9 | 9 | December 31, 2018 | 99,999% over the limit |
| Phenolics, total recoverable | 10 | 6 | 6 | June 30, 2015 | 129% over the limit |
| Oil & Grease | 16 | 4 | 4 | July 31, 2023 | 6,700% over the limit |
| Phenol | 10 | 4 | 1 | July 31, 2021 | 150% over the limit |
| pH | 20 | 1 | 1 | December 31, 2011 | |
| Flow, in conduit or thru treatment plant | 36 | 2 | 0 | ||
| Lead, total [as Pb] | 12 | 2 | 0 | ||
| Benzene | 12 | 2 | 0 | ||
| BTEX | 12 | 2 | 0 | ||
| Oil and grease | 0 | 2 | 0 | ||
| Carbon, tot organic [TOC] | 12 | 1 | 0 | ||
| Cyanide, total [as CN] | 10 | 0 | 0 | ||
| Arsenic, total [as As] | 10 | 0 | 0 | ||
| Beryllium, total [as Be] | 10 | 0 | 0 | ||
| Cadmium, total [as Cd] | 10 | 0 | 0 | ||
| Chromium, total [as Cr] | 10 | 0 | 0 | ||
| Copper, total [as Cu] | 10 | 0 | 0 | ||
| Thallium, total [as Tl] | 10 | 0 | 0 | ||
| Nickel, total [as Ni] | 10 | 0 | 0 | ||
| Silver, total [as Ag] | 10 | 0 | 0 | ||
| Zinc, total [as Zn] | 10 | 0 | 0 | ||
| Antimony, total [as Sb] | 10 | 0 | 0 | ||
| Selenium, total [as Se] | 10 | 0 | 0 | ||
| Dichlorobromomethane | 10 | 0 | 0 | ||
| Carbon tetrachloride | 10 | 0 | 0 | ||
| 1,2-Dichloroethane | 10 | 0 | 0 | ||
| Bromoform | 10 | 0 | 0 | ||
| Dibromochloromethane | 10 | 0 | 0 | ||
| Chloroform | 10 | 0 | 0 | ||
| Toluene | 10 | 0 | 0 | ||
| .delta.-BHC | 10 | 0 | 0 | ||
| Acenaphthylene | 10 | 0 | 0 | ||
| Acenaphthene | 10 | 0 | 0 | ||
| Acrolein | 10 | 0 | 0 | ||
| Acrylonitrile | 10 | 0 | 0 | ||
| Anthracene | 10 | 0 | 0 | ||
| Benzo[b]fluoranthene | 10 | 0 | 0 | ||
| Benzo[k]fluoranthene | 10 | 0 | 0 | ||
| Benzo[a]pyrene | 10 | 0 | 0 | ||
| Bis[2-chloroethyl] ether | 10 | 0 | 0 | ||
| Bis[2-chloroethoxy]methane | 10 | 0 | 0 | ||
| Bis[2-chloroisopropyl] ether | 10 | 0 | 0 | ||
| Butyl benzyl phthalate | 10 | 0 | 0 | ||
| Chlorobenzene | 10 | 0 | 0 | ||
| Chrysene | 10 | 0 | 0 | ||
| Diethyl phthalate | 10 | 0 | 0 | ||
| Dimethyl phthalate | 10 | 0 | 0 | ||
| 1,2-Diphenylhydrazine | 10 | 0 | 0 | ||
| Endosulfan sulfate | 10 | 0 | 0 | ||
| .beta.-Endosulfan | 10 | 0 | 0 | ||
| .alpha.-Endosulfan | 10 | 0 | 0 | ||
| Endrin aldehyde | 10 | 0 | 0 | ||
| Ethylbenzene | 10 | 0 | 0 | ||
| Fluoranthene | 10 | 0 | 0 | ||
| Fluorene | 10 | 0 | 0 | ||
| Hexachlorocyclopentadiene | 10 | 0 | 0 | ||
| Hexachlorobutadiene | 10 | 0 | 0 | ||
| Hexachloroethane | 10 | 0 | 0 | ||
| Indeno[1,2,3-cd]pyrene | 10 | 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 LA0075981.
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 LA0075981 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.