Clean Water Act discharge permit · NPDES LA0126462
EXTEX OPERATING COMPANY-SHIP SHOAL BLOCK 43, Houma, LA: NPDES LA0126462 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 36Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
EXTEX OPERATING COMPANY-SHIP SHOAL BLOCK 43, held by EXTEX OPERATING COMPANY - SHIP SHOAL BLOCK 43, holds NPDES permit LA0126462. EPA’s file records it issued February 21, 2024 and expiring March 31, 2029. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | EXTEX OPERATING COMPANY-SHIP SHOAL BLOCK 43 |
|---|---|
| Permittee as filed | EXTEX OPERATING COMPANY - SHIP SHOAL BLOCK 43 |
| NPDES ID | LA0126462 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 21, 2024 |
| Expiration date | March 31, 2029 |
| Address | Houma, LA 70000 |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 36Pollutants on file
- 36Under a numeric limit
- 34With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 15 | 32 | 0 | ||
| Oil & Grease | 5 | 13 | 0 | ||
| Chlorine, total residual | 2 | 6 | 0 | ||
| Critical Dilution | 4 | 4 | 0 | ||
| Lead, total [as Pb] | 3 | 3 | 0 | ||
| Benzene | 3 | 3 | 0 | ||
| pH | 4 | 2 | 0 | ||
| Solids, total suspended | 3 | 2 | 0 | ||
| Thallium, total [as Tl] | 2 | 2 | 0 | ||
| Produced water, Radium 226, total | 2 | 2 | 0 | ||
| Produced water, Radium 228, total | 2 | 2 | 0 | ||
| Phenolics, total recoverable | 2 | 2 | 0 | ||
| Benzene, calculated limit | 2 | 2 | 0 | ||
| Lead, calculated limit | 2 | 2 | 0 | ||
| Phenol, calculated limit | 2 | 2 | 0 | ||
| Thallium, calculated limit | 2 | 2 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia) | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia menidia | 2 | 2 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Menidia | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| NOAEC Lethal Static Renewal 48HR Acute Menidia menidia | 2 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Menidia menidia | 2 | 2 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| Carbon, tot organic [TOC] | 1 | 1 | 0 | ||
| BTEX | 1 | 1 | 0 | ||
| Enterococci | 2 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES LA0126462.
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 LA0126462.
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.
Watch this permit
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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 LA0126462 there.
Nearby on the register
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- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.