Clean Water Act discharge permit · NPDES LA0126349
DIAMOND GREEN DIESEL LLC - GREEN DIESEL PLANT, Norco, LA: NPDES LA0126349 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
DIAMOND GREEN DIESEL LLC - GREEN DIESEL PLANT, held by DIAMOND GREEN DIESEL LLC, holds NPDES permit LA0126349. 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 | DIAMOND GREEN DIESEL LLC - GREEN DIESEL PLANT |
|---|---|
| Permittee as filed | DIAMOND GREEN DIESEL LLC |
| NPDES ID | LA0126349 |
| 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 | September 20, 2019 |
| Expiration date | October 31, 2024 |
| Address | Norco, LA 70079 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Bayou La Branche-Frontal Lake Pontchartrain (HUC 080902030101) |
| SIC | 2869 – Industrial Organic Chemicals |
| Other EPA IDs (FRS) | RCRA handler LAR000076315; ICIS-AIR source LA0000002208900158 |
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
- 11Pollutants on file
- 10Under a numeric limit
- 11With a violation of any kind
- 5With 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 |
|---|---|---|---|---|---|
| Oil and grease | 0 | 51 | 8 | February 28, 2019 | 285% over the limit |
| Carbon, tot organic [TOC] | 7 | 49 | 6 | October 31, 2018 | 27% over the limit |
| Chlorine, total residual | 3 | 24 | 2 | June 30, 2017 | 510% over the limit |
| Oil & Grease | 7 | 2 | 2 | January 31, 2024 | 25% over the limit |
| pH | 14 | 87 | 1 | March 31, 2018 | |
| Flow, in conduit or thru treatment plant | 14 | 86 | 0 | ||
| Temperature, water deg. fahrenheit | 6 | 23 | 0 | ||
| Solids, total suspended | 2 | 21 | 0 | ||
| Lead, total [as Pb] | 1 | 7 | 0 | ||
| Benzene | 1 | 7 | 0 | ||
| BTEX | 1 | 7 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| March 31, 2018 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
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 LA0126349 there.
Nearby on the register
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- Every permit record in Norco, 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.