Clean Water Act discharge permit · NPDES LA0100846
JEFFERSON PARISH DEPT OF SEWERAGE - ROSETHORNE WASTEWATER TREATMENT PLANT, Lafitte, LA: NPDES LA0100846 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
JEFFERSON PARISH DEPT OF SEWERAGE - ROSETHORNE WASTEWATER TREATMENT PLANT, held by Jefferson Parish Dept of Sewerage - Rosethorne Wastewater Treatment Plant, holds NPDES permit LA0100846. EPA’s file records it issued March 5, 2026 and expiring August 10, 2028. 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 | JEFFERSON PARISH DEPT OF SEWERAGE - ROSETHORNE WASTEWATER TREATMENT PLANT |
|---|---|
| Permittee as filed | Jefferson Parish Dept of Sewerage - Rosethorne Wastewater Treatment Plant |
| NPDES ID | LA0100846 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 5, 2026 |
| Expiration date | August 10, 2028 |
| Issuing agency | LDEQ |
| Address | Lafitte, LA 70067 |
| Subwatershed | Bayou Bardeaux-Frontal Lake Salvador (HUC 080903010310) |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 10Pollutants on file
- 7Under a numeric limit
- 5With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 6 | 181 | 181 | March 31, 2024 | 943% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 0 | 76 | 76 | September 30, 2009 | 600% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 62 | 62 | August 31, 2023 | 570% over the limit |
| Coliform, fecal general | 0 | 20 | 20 | August 31, 2023 | 14,900% over the limit |
| Nitrogen, ammonia total [as N] | 0 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 0 | 0 | ||
| Enterococci | 4 | 0 | 0 | ||
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Phosphorus, total [as P] | 3 | 0 | 0 | ||
| Chlorine, total residual | 2 | 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 LA0100846.
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
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, LA0100846.
Start the watch
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- One watershed — $2,990/year
- One state — $4,990/year
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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 LA0100846 there.
Nearby on the register
- Discharge permits in Lafitte
- Every permit record in Lafitte, A to Z
- Discharge permits in Louisiana
- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.