Clean Water Act discharge permit · NPDES LA0122921
SHELL CATALYSTS & TECHNOLOGIES LP - PORT ALLEN PLANT, Port Allen, LA: NPDES LA0122921 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 15Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
SHELL CATALYSTS & TECHNOLOGIES LP - PORT ALLEN PLANT, held by SHELL CATALYSTS & TECHNOLOGIES LP, holds NPDES permit LA0122921. EPA’s file records it issued June 19, 2020 and expiring June 30, 2025. 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 | SHELL CATALYSTS & TECHNOLOGIES LP - PORT ALLEN PLANT |
|---|---|
| Permittee as filed | SHELL CATALYSTS & TECHNOLOGIES LP |
| NPDES ID | LA0122921 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | June 19, 2020 |
| Expiration date | June 30, 2025 |
| Address | Port Allen, LA 70767 |
| Subwatershed | Alligator Bayou-Choctaw Bayou (HUC 080703000204) |
| SIC | 2819 – Industrial Inorganic Chemicals |
| Other EPA IDs (FRS) | RCRA handler LAR000007302; ICIS-AIR source LA0000002212100059 |
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
- 15Pollutants on file
- 15Under a numeric limit
- 4With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Iron, total [as Fe] | 2 | 8 | 8 | March 31, 2023 | 295% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 2 | 2 | June 30, 2021 | 207% over the limit |
| Solids, total suspended | 5 | 1 | 1 | March 31, 2019 | 40% over the limit |
| Oil & Grease | 4 | 1 | 1 | August 31, 2024 | 413% over the limit |
| Flow, in conduit or thru treatment plant | 10 | 0 | 0 | ||
| pH | 8 | 0 | 0 | ||
| Iron, total recoverable | 6 | 0 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 5 | 0 | 0 | ||
| Carbon, tot organic [TOC] | 4 | 0 | 0 | ||
| Aluminum, total recoverable | 4 | 0 | 0 | ||
| Aluminum, total [as Al] | 4 | 0 | 0 | ||
| Chloride [as Cl] | 2 | 0 | 0 | ||
| Sulfate, total [as SO4] | 2 | 0 | 0 | ||
| Coliform, fecal general | 2 | 0 | 0 | ||
| Chlorine, total residual | 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 LA0122921.
Inspections
EPA’s inspection file holds no inspection for NPDES LA0122921.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES LA0122921.
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, LA0122921.
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 LA0122921 there.
Nearby on the register
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- Every permit record in Port Allen, A to Z
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- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.